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Business Profile

Building Materials

Cornerstone Building Brands

Complaints

This profile includes complaints for Cornerstone Building Brands's headquarters and its corporate-owned locations. To view all corporate locations, see

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Cornerstone Building Brands has 30 locations, listed below.

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    Customer Complaints Summary

    • 357 total complaints in the last 3 years.
    • 89 complaints closed in the last 12 months.

    If you've experienced an issue

    Submit a Complaint

    The complaint text that is displayed might not represent all complaints filed with BBB. Some consumers may elect to not publish the details of their complaints, some complaints may not meet BBB's standards for publication, or BBB may display a portion of complaints when a high volume is received for a particular business.

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    Complaint status

    Complaint type

    • Initial Complaint

      Date:02/25/2025

      Type:Service or Repair Issues
      Status:
      AnsweredMore info

      Complaint statuses

      Resolved:
      The complainant verified the issue was resolved to their satisfaction.
      Unresolved:
      The business responded to the dispute but failed to make a good faith effort to resolve it.
      Answered:
      The business addressed the issues within the complaint, but the consumer either a) did not accept the response, OR b) did not notify BBB as to their satisfaction.
      Unanswered:
      The business failed to respond to the dispute.
      Unpursuable:
      BBB is unable to locate the business.
      We originally purchased our townhouse in November, 2020. We noticed the discoloration on the siding when we purchased the home but were told by the selling party that there is a warranty and we can file for that. There is a lifetime warranty on this product but we have been unable to get a reply to our issue. I am naming R. ***** ********, Territory Sales Manager as the person who I have been calling every week for the past 6 months or so. ************ is his number. He is a Ply Gem Territory Rep and is the one that needs to push this along.

      Business Response

      Date: 03/20/2025

      We received a partially filled out claim form from these homeowners on 11/8/2024.  On the same date, we opened a claim (WCG3786) and sent them an email asking for the additional information needed to continue with the claim (i.e.: pictures, sample(s), etc).  They emailed back on 1/12/2024 stating they are trying to get the rest of the information to us and stated they were unwilling to send in a sample.  Our Tech *** responded the same day via email with the explanation of why we needed the samples and suggested they may want to reach out to the installer/contractor for assistance.  That was the last we heard from them.  At that point in the process, we didn't even have any proof that the material on the home was produced by Ply Gem.  **** referred to the applicable warranty for the brand that the claim form came in under and explained it was their responsibility to provide the necessary sample.

      The applicable ******************* Lifetime Transferable Warranty states in the section "What Must You Do To Be Covered?" that "you must do the following to be entitled to coverage-...bullet point #2:  'Notify us in writing of any defects or other conditions that may be covered by this warranty withing a reasonable time after you discover the condition.  The written notice should describe the defect in detail.  For claims of excessive color fade, in order to accurately evaluate, we will require the submission by homeowner to the manufacturer (a) a sample piece of the affected area on any and all uneven color loss claims and (b) a copy of an annual preventative cleaning schedule."  

      However, since it is our desire to maintain a good relationship with all our customers, we reached out to our Territory Sales Manager who was specifically noted in the complaint.  While he had no recollection or record of dealing with the claim or the homeowners involved, he did state that he would be in the area in the upcoming days and would make an attempt to reach out to the homeowners and help them understand the process.  Our Territory Sales managers cover large areas encompassing multiple states at times which makes it nearly impossible for us to visit each warranty site in person, hence the requirement in the warranty for the homeowner to provide us the necessary information and samples to accurately address the claim.

      Our TSM did visit the stie and will be forwarding the necessary information to us shortly.  As soon as we have the samples and are able to clean and test them, we will report the results back to the homeowners and review the next step(s) in the process.  

    • Initial Complaint

      Date:02/24/2025

      Type:Service or Repair Issues
      Status:
      AnsweredMore info

      Complaint statuses

      Resolved:
      The complainant verified the issue was resolved to their satisfaction.
      Unresolved:
      The business responded to the dispute but failed to make a good faith effort to resolve it.
      Answered:
      The business addressed the issues within the complaint, but the consumer either a) did not accept the response, OR b) did not notify BBB as to their satisfaction.
      Unanswered:
      The business failed to respond to the dispute.
      Unpursuable:
      BBB is unable to locate the business.
      This filing is in reference to ******** Windows/Cornerstone Building Brands for claim submitted in December 2024 ( Case Number PG-*******-JABOL1 REF:032500003349)-to report the company's non-compliance to potentially leverage mediation services for failure to honor term coverage for the 20-year limited warranty on all windows/accessories. The subject residence is property: ************************************************, which was built by *********** in 2005. Per email correspondence, ******** ********* at Cornerstone, ill-advised that units prior to 6/22/2007 went to a 10-year warranty as well as falsely informed the start of warranty was dated 7/24/2003. First of all, the house wasn't even built in 2003. My parents bought the house in 2005 and closed and moved in sometime in mid to late March. Also, I successfully placed an order under warranty terms on 9/30/2019 for replacement screens for all windows/doors (see attachments), 6 years after Cornerstone confirmed warranty was expired. When placing order, ******** Windows customer service confirmed that coverage expires in 2025 so make sure to address all repairs/replacements prior. This warranty information was of course addressed per closing on the house in 2005. Additionally, *********** advised of the 20-year limited warranty on the windows as well and added that ******** should honor the term coverage. The fluctuating warranty information Cornerstone has is grossly inaccurate. Since this product is still within the time frame where manufacturer is obligated to repair or replace it for free if it becomes defective, ******** should cover the costs for any necessary repairs or replacements as per the warranty terms. After several attempts after 1/27/25 to reach ******** at Cornerstone to resolve issue, I was completely ignored and received no correspondence thereafter. I then called a week ago and spoke to a support agent that then said warranty started in 1998-I asked to speak to a manager-no one called me back.

      Business Response

      Date: 02/28/2025

      Ms. ******************** you for reaching out regarding your warranty claim. We understand your frustration and appreciate the opportunity to clarify the situation.
      While the warranty for your windows has now technically expired, we are making a one-time accommodation to provide the replacement screens at no cost to you. We will be placing the order and will provide you with the order number and estimated shipping date once confirmed. Please note that any future replacement parts will need to be ordered through a local distributor as a chargeable item.
      We appreciate your patience and are committed to ensuring you receive your replacement screens as quickly as possible. 
      Thank you,
      Cornerstone Building Brands
    • Initial Complaint

      Date:02/10/2025

      Type:Service or Repair Issues
      Status:
      ResolvedMore info

      Complaint statuses

      Resolved:
      The complainant verified the issue was resolved to their satisfaction.
      Unresolved:
      The business responded to the dispute but failed to make a good faith effort to resolve it.
      Answered:
      The business addressed the issues within the complaint, but the consumer either a) did not accept the response, OR b) did not notify BBB as to their satisfaction.
      Unanswered:
      The business failed to respond to the dispute.
      Unpursuable:
      BBB is unable to locate the business.
      I am writing to file a formal complaint against Cornerstone Building Brands, as they have failed to deliver on their promise of providing quality windows and upholding their warranty. I purchased a home 3 yrs ago windows the home has PLY-Gem windows installed. However, a couple of years after installation, the windows began to show significant defects, appears to be issues with seals, two windows have a haze over them I believe the low-e coat has failed. Despite repeated attempts to contact their customer service and warranty department for resolution, they have been unresponsive and unhelpful in addressing these concerns. This lack of accountability has left me frustrated and disappointed, as I trusted this company to fulfill its commitments. I am requesting that the Better Business Bureau intervene to ensure that my warranty is honored and the quality issues are resolved promptly. I have a case with them #PG-2904290-Y3L7N8

      Business Response

      Date: 02/11/2025

      Mr. ******************** you for reaching out regarding your warranty concerns. We understand your frustration and appreciate your patience as we work to resolve this matter.
      Your warranty claim (Case #PG-2904290-Y3L7N8) was received on February 3, 2025, and we have since processed a new order (#*******) for the necessary replacement parts. The order is scheduled to ship on February 28, and as a courtesy, we have waived the shipping fees.
      We are committed to ensuring this issue is resolved promptly and will continue to provide updates as your order progresses. If you have any further questions, please dont hesitate to reach out.

      Thank you,
      Cornerstone Building Brands

      Customer Answer

      Date: 02/13/2025

       
      Better Business Bureau:

      I received a call from ****** *., who took the time to listen to my concerns and assured me that they would be addressed promptly. She informed me that my defective windows would be replaced and even went above and beyond by waiving the shipping cost for the replacement windows which is not covered by the warranty, I truly appreciate Cornerstone Building Brands for stepping up and doing the right thing. I am satisfied with the outcome and am comfortable with closing the complaint ticket. 

      Sincerely,

      ******* ******
    • Initial Complaint

      Date:02/10/2025

      Type:Service or Repair Issues
      Status:
      AnsweredMore info

      Complaint statuses

      Resolved:
      The complainant verified the issue was resolved to their satisfaction.
      Unresolved:
      The business responded to the dispute but failed to make a good faith effort to resolve it.
      Answered:
      The business addressed the issues within the complaint, but the consumer either a) did not accept the response, OR b) did not notify BBB as to their satisfaction.
      Unanswered:
      The business failed to respond to the dispute.
      Unpursuable:
      BBB is unable to locate the business.
      I filed a warranty claim on window that had fogged. I send the barcode information from the original order that was 20 years ago. All as instructed by ********. The warranty claim was approved and I paid $300 for delivery plus $850 for an installation from a local glass company I found on the ******** website. All according to instructions from ********. The windows were the wrong size and could not be installed. After much back and forth ******** said new windows would be sent, with no delivery fee, but they did not have measurements taken and did not give clear a clear date for delivery. I would also have to pay for the installation at another $850. I am selling my house and need the windows as soon as possible. I have moved forward with new glass from the local glass company for $1,534. I requested reimbursement for the delivery and the fee for the installation for a total of $1150. This would save ******** the cost of delivery and materials and labor for the widows. ******** has stopped communication with me.

      Business Response

      Date: 02/24/2025

      Mr. **************** you for following up on your warranty claim. We understand your frustration with the process and appreciate your patience as we work through your concerns.
      We have received the additional documentation you provided regarding your request for reimbursement. Our claims team is currently reviewing the information and will provide you with an update as soon as possible.
      We recognize the urgency of your situation and will keep you informed as we move toward a resolution.
      Thank you,
      Cornerstone Building Brands

      Customer Answer

      Date: 02/24/2025

       
      Complaint: 22919293

      I am rejecting this response because:
      At this time the company is still reviewing documentation I have submitted to them. They have not offered a resolution to my complaint. Until a resolution is offered, I am still dissatisfied with the outcome. 
      I understand it takes time. I appreciate they have committed and look forward to seeing the resolution they offer. 
      Sincerely,

      ******* ******

      Business Response

      Date: 03/10/2025

      Mr. **************** you for your patience as we worked to resolve your warranty claim.
      We have reviewed the documentation you provided and have extended a settlement offer to reimburse you for the labor and parts costs. We have received your signed acceptance of this offer, and we are now processing the necessary Vendor Add and Check Request forms to finalize the reimbursement.
      If you have any further questions, please feel free to reach out.
      Thank you,
      Cornerstone Building Brands

      Customer Answer

      Date: 03/11/2025

       
      Complaint: 22919293

      I am rejecting this response because:

      I have accepted the settlement amount proposed, but have not received the payment. Until the payment is received I cant report a satisfactory resolution. 
      I believe the payment will arrive soon and then I will be happy to report I am satisfied with the result. 
      Sincerely,

      ******* ******

      Business Response

      Date: 03/27/2025

      Mr. **************** you again for your continued patience.
      According to our records, your reimbursement check (Check #*******) was sent via ***** Overnight with tracking number ************ and should have been delivered by 5:00 PM on March 19, 2025.
      If you have not yet received the check or have any issues with it, please let us know so we can follow up promptly.
      Thank you,
      Cornerstone Building Brands
    • Initial Complaint

      Date:01/23/2025

      Type:Service or Repair Issues
      Status:
      AnsweredMore info

      Complaint statuses

      Resolved:
      The complainant verified the issue was resolved to their satisfaction.
      Unresolved:
      The business responded to the dispute but failed to make a good faith effort to resolve it.
      Answered:
      The business addressed the issues within the complaint, but the consumer either a) did not accept the response, OR b) did not notify BBB as to their satisfaction.
      Unanswered:
      The business failed to respond to the dispute.
      Unpursuable:
      BBB is unable to locate the business.
      In brief, I filed a warranty claim (Case ID = ****************** on August 2, 2024 with Ply Gem (formerly Insulate/Vinyltek)* for windows in which the frames are currently buckling outward (by 4 inches over a 6 foot length, as measured by a company representative). The windows were sold in 1993 with a lifetime warranty. The key points are:1. The windows were sold with a lifetime warranty (copy attached) .2. ******* changed its manufacturing process to make the frames more robust since warping frames had been occurring with windows produced during the early 1990s 3. The warranty excluded a number of situations, but not settling (but there are no signs of settling, so thats not an issue in this case).4. The company representative sent to examine the windows reported that the windows were bulging 4 inches out over 6 feet. He further stated that there were no cracks in the foundation, nor in the drywall, and most importantly no indications of settling, and that an engineer would call to set up an appointment.5. When no engineer called, I both emailed and called ***** *******, Claims Scheduler and he said that since the house was settling the claim wouldnt be honored (but there is no evidence of that). 6. Multiple requests to Mr. ******* and the President and CEO of Ply Gem for copies of the photos taken by the company representative, and his report stating that there were no cracks in the foundation or drywall, have been ignored.7. If a company denies a lifetime warranty claim, it is incumbent upon them to provide the purported evidence for the denial.8. The company has honored the lifetime warranty several times since 2004.Details, and a copy of the warranty, are available in the attachments.

      Business Response

      Date: 01/27/2025

      Mr. ***************** you for reaching out regarding your warranty claim. We understand your concerns and appreciate your patience as we work to address this matter.
      A new claim has been opened under Case ID **********, and we have been in contact with you regarding next steps. We have scheduled an inspection with the original technician, our ************* Supervisor, and a third-party representative to thoroughly evaluate your windows and gather the necessary information.
      We are committed to ensuring this matter is reviewed comprehensively and will keep you informed as the process moves forward. If you have any additional questions, please dont hesitate to contact us.
      Thank you,
      Cornerstone Building Brands
    • Initial Complaint

      Date:01/22/2025

      Type:Service or Repair Issues
      Status:
      ResolvedMore info

      Complaint statuses

      Resolved:
      The complainant verified the issue was resolved to their satisfaction.
      Unresolved:
      The business responded to the dispute but failed to make a good faith effort to resolve it.
      Answered:
      The business addressed the issues within the complaint, but the consumer either a) did not accept the response, OR b) did not notify BBB as to their satisfaction.
      Unanswered:
      The business failed to respond to the dispute.
      Unpursuable:
      BBB is unable to locate the business.
      We moved into a new home in Sep 2021 in which the builder installed Ply Gem double pane windows throughout the home. The windows have a 20 year warranty against defects and the warranty states that, "Ply Gem will, at no cost to you, provide components needed to correct any of the following conditions if it is directly caused by a defect in the product as manufactured, as determined by Ply Gem Windows, and has resulted in a significant impairment in operation and usage." One of the covered conditions listed is failure of the insulating glass unit (IGR) seal. I have uploaded the warranty. We now have 4 windows in which the insulating glass unit (IGR) seals have failed with subsequent permanent fogging on the interior glass due to intrusion of moisture between the panes. We submitted a complete warranty claim which ******* has approved the replacement of the glass units. However, Ply Gem wants to charge $175 to ship the needed components to us. However, the applicable warranty makes no mention of paying shipping for replacement parts (it states, at no cost to you). I believe Ply Gem is trying to recoup the cost of replacement components by charging excess shipping costs.We have contacted Ply Gem with our complaint but they insist that shipping costs are not part of the warranty, although there is no mention of paying shipping in the warranty (at no cost to you). We request that Ply Gem ship the needed components to us at no cost to us as stated in the warranty.

      Business Response

      Date: 01/22/2025

      Mr. ************** you for bringing your concerns to our attention. We understand the frustration youve experienced regarding your warranty claim and the shipping fees for your replacement components.
      To resolve this matter, we have decided to waive the shipping and handling fee as a one-time courtesy. The necessary replacement components will be shipped to you at no cost. Our team will be contacting you today to confirm this update and provide any additional details.
      We appreciate your patience and the opportunity to address your concerns. If you have any further questions, please dont hesitate to reach out.
      Thank you,
      Cornerstone Building Brands

      Customer Answer

      Date: 01/25/2025

       
      Better Business Bureau:

      I have reviewed the response made by the business in reference to complaint ID ********, and find that this resolution is satisfactory to me.

      Sincerely,

      ****** ****
    • Initial Complaint

      Date:01/13/2025

      Type:Delivery Issues
      Status:
      AnsweredMore info

      Complaint statuses

      Resolved:
      The complainant verified the issue was resolved to their satisfaction.
      Unresolved:
      The business responded to the dispute but failed to make a good faith effort to resolve it.
      Answered:
      The business addressed the issues within the complaint, but the consumer either a) did not accept the response, OR b) did not notify BBB as to their satisfaction.
      Unanswered:
      The business failed to respond to the dispute.
      Unpursuable:
      BBB is unable to locate the business.
      Good morning.I order gloss for my broken window, paid for on November 1 2024. They send me wrong gloss For different window. I contact them via email numerals time. They told me I will receive the gloss on December 31 2024. Then I will receive on January 2, 2025. Then I got email that it gloss they sand to service technician. Today is ********** no gloss. In addition I have 2 window that is still under warranty. that need to be fixed. The promise to send me parts to fix them.

      Business Response

      Date: 01/17/2025

      Mr. ***************** you for bringing this matter to our attention, and we sincerely apologize for the delays and confusion surrounding your replacement glass and warranty claims.
      To address your concerns, a technician has set a tentative date of January 29th to complete the service. We are currently awaiting your confirmation to finalize this appointment. Once confirmed, we will ensure that all necessary parts and repairs are addressed during the visit.
      We appreciate your patience and understanding as we work to resolve this issue. Please feel free to reach out if you have any questions or would like to confirm the scheduled service date.
      Thank you,
      Cornerstone Building Brands
    • Initial Complaint

      Date:01/09/2025

      Type:Service or Repair Issues
      Status:
      AnsweredMore info

      Complaint statuses

      Resolved:
      The complainant verified the issue was resolved to their satisfaction.
      Unresolved:
      The business responded to the dispute but failed to make a good faith effort to resolve it.
      Answered:
      The business addressed the issues within the complaint, but the consumer either a) did not accept the response, OR b) did not notify BBB as to their satisfaction.
      Unanswered:
      The business failed to respond to the dispute.
      Unpursuable:
      BBB is unable to locate the business.
      I have a valid warranty claim for failure of Atrium windows that has occurred within the warranty period. I have documents showing the purchase, and delivery of the windows to me for new construction, but Atrium insists on an ID number from a "sticker" on the frame. None of my units have ever had such a "sticker" and this requirement was not an issue when 13 pieces were replaced by Atrium in 2015. Atrium will not communicate with me because I am an "individual" and Lowes (Atrium's selection for communication) will not help me file a claim because Lowes says Atrium will not accept claims without the "sticker" information. I have made multiple attempts to resolve the issue, but the "Atrium **************** Team" will not respond to my emails

      Business Response

      Date: 01/10/2025

      Mr. ****************** you for reaching out regarding your Atrium windows and the challenges youve faced in filing your warranty claim. We understand your frustration and appreciate your persistence in seeking a resolution.
      To address your claim, we have created a pro-rated quote for the necessary replacement parts and have contacted Lowes (store #****) to process the order on your behalf. Once Lowes provides us with the required purchase order, we will notify you with the new PO number and provide an estimated delivery date for the parts to be delivered to Lowes for pickup.
      We will keep you updated throughout the process and ensure you receive the information needed to complete your claim. If you have any further questions or concerns, please dont hesitate to reach out.
      Thank you,
      Cornerstone Building Brands
    • Initial Complaint

      Date:12/18/2024

      Type:Service or Repair Issues
      Status:
      AnsweredMore info

      Complaint statuses

      Resolved:
      The complainant verified the issue was resolved to their satisfaction.
      Unresolved:
      The business responded to the dispute but failed to make a good faith effort to resolve it.
      Answered:
      The business addressed the issues within the complaint, but the consumer either a) did not accept the response, OR b) did not notify BBB as to their satisfaction.
      Unanswered:
      The business failed to respond to the dispute.
      Unpursuable:
      BBB is unable to locate the business.
      Ply Gem eyebrow window was not properly sealed. Used all their windows for a new home. Filed a warranty claim ref:027500013607 and was told it would be $300 to send new window no installation (and I have 30 days to pay or I have to refile a new claim). Dont know the cost of window its only 4 feet by 18 inches. 4 years ago they had to replace a sliding glass door that wasnt properly sealed. The sent it to my local ********** and I had to pick it up and install it.

      Business Response

      Date: 12/19/2024

      Mr ***** responded by email that he thinks this has been resolved but will wait until he receives the material to update the compliant.

      Business Response

      Date: 01/02/2025

      Mr. *************** you for reaching out and sharing your concerns regarding your eyebrow window. We understand the frustration this has caused and appreciate the opportunity to address the issue.
      To resolve this matter, replacement glass is being sent to you at no charge for shipping. The order has been processed under Order #********. We will keep you updated on the delivery timeline and ensure the process is completed to your satisfaction.
      If you have any additional questions or need further assistance, please do not hesitate to contact us.
      Thank you,
      Cornerstone Building Brands
    • Initial Complaint

      Date:12/16/2024

      Type:Service or Repair Issues
      Status:
      AnsweredMore info

      Complaint statuses

      Resolved:
      The complainant verified the issue was resolved to their satisfaction.
      Unresolved:
      The business responded to the dispute but failed to make a good faith effort to resolve it.
      Answered:
      The business addressed the issues within the complaint, but the consumer either a) did not accept the response, OR b) did not notify BBB as to their satisfaction.
      Unanswered:
      The business failed to respond to the dispute.
      Unpursuable:
      BBB is unable to locate the business.
      I filed a claim for window warranties with Cornerstone Building Brands (the original window manufacturer and installer) back in October for three windows that had lost their seals. The loss of seals was confirmed by an independent home inspection and an independent professional window cleaner. Cornerstone Building Brands would not honor their warranty at first, and kept asking for pictures of stickers on the windows to confirm they were the installer. I provided multiple photos of the stickers; however, after 7 years in the Texas sun, the numbers and letters on the stickers had worn off. Cornerstone Building Brands stated they would not cover the warranty without the stickers. I had to hire a handyman to pull out the windows from the frames in all the windows of my house in hopes of finding one with a sticker intact. We did find one such sticker. I emailed a photo of the sticker to Cornerstone Building Brands. After much back and forth, they finally agreed to honor the warranty. They informed me that a representative would reach out to get the payment for the labor and to schedule an appointment. A week went by and no response. I emailed them again on 12/9 and asked for the status. It is now 12/13 and still no response.I believe Cornerstone Building Brand's business practices constitute unfair and deceptive trade practices. First, they refused to honor the terms of the warranty. Then, they acted as if they would honor the warranty, but then, ultimately, ghosted me and refused to honor the warranty. I believe the public should be warned not to do business with Cornerstone Building Brands for these reasons.

      Business Response

      Date: 12/17/2024

      Ms. ************* you for your patience and for sharing your concerns regarding your warranty claim. We apologize for the frustration caused during this process and any delays in communication.
      We want to clarify that we have sent you a payment link to cover the required labor charges. Once the payment is processed, we will promptly schedule the service appointment to address the issues with your windows. Please note that our service operations will pause between December 23rd and January 1st for the holidays, but we are committed to ensuring the work is scheduled as soon as possible after payment is received.
      If you have any further questions or concerns, please do not hesitate to reach out. We appreciate your understanding as we work to resolve this matter.
      Thank you,
      Cornerstone Building Brands

      Customer Answer

      Date: 12/18/2024

       
      Complaint: 22685933

      I am rejecting this response because: The link I received was for one (1) window. As previously mentioned (and agreed by your representative via email on 12/2), there are three (3) windows that require replacement. I will need the link to pay the labor charges for the other 2 windows and need to schedule those replacements as well.

      Sincerely,

      ***** ***

      Business Response

      Date: 01/02/2025

      Ms. ************* you for your response. We understand your concerns and want to clarify the situation regarding your replacement windows.
      At this time, the payment link was sent for the labor charges associated with one window. The remaining two windows will require additional information, which will be obtained when the technician completes their assessment. Once we have the necessary details, we will send you a separate payment link for the labor charges on the other two windows and proceed with scheduling their replacement.
      We appreciate your understanding as we work to address all your warranty claims.
      Thank you,
      Cornerstone Building Brands

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