This document is the manufacturer stating that its own products cannot be combined on one building. Andersen's aluminum warranty excludes DISCONTINUED GLASS from the 20-year glass warranty entirely — written confirmation that discontinued glass is a distinct, unsupported category.
Do-not-mix Andersen · Windows · 2025 · 3 pages
Andersen aluminum windows and doors
In their own words
This limited warranty on glass does not apply to special order glazings, decorative glass, discontinued glass, impact-resistant glass or glass that is not factory installed by Andersen.
Andersen — Andersen aluminum windows and doors, 2025
That sentence is not our characterisation of the manufacturer’s position. It is the manufacturer’s position, in the document below, which you can read yourself in about a minute.
The same document also establishes
Where Andersen elects to refinish rather than replace, it states in writing that the refinish will NOT necessarily be the same finish as originally applied — an express manufacturer admission that a repaired unit will not match the factory original.
“the finish will be performed with standard commercial refinishing techniques and will not necessarily be the same finish as originally applied to the product”
Get the document
Andersen aluminum windows and doors
Issued by Andersen. Published here complete — no summary standing in for the document, no email required.
Issued by Andersen. Retrieved from andersenwindows.com, August 2026, and hosted here so it stays available in the version quoted above.
What to do with it
This is the argument carriers least expect, because it does not come from you. When the manufacturer says two of its own products may not share a roof, a repair that combines them is not a cheaper way of doing the job — it is a defective installation, and the party who directed it owns the outcome.
- You have the manufacturer’s document. That part is finished. Most homeowners never get this far, and it is the step a carrier cannot argue with — it is not your opinion, it is the company that made the product.
- Put it in writing, to the adjuster, with the claim number. Attach the document and ask one specific question: name the exact replacement product — manufacturer, line, colour, dimensions, exposure, nail zone, sealant design, supplier, quantity available locally — and who will answer for the repair if it fails. Vague answers are the whole game; a specific question ends it.
- Get the position on the record before anything gets installed. Once a mismatched or incompatible repair is on the building, you are arguing about something already done.
If you want the second and third steps handled by someone who does this for a living, that is what we are for — and the review costs nothing. If you would rather do it yourself, the document above is yours either way. That is the point of publishing it.
Related documents
Other Andersen documents
Andersen Perma-Shield Narroline Window (1968 to 2012)
Andersen records the Perma-Shield Narroline double-hung as produced 1968 to 2012 and states that Narroline windows are 'currently produced in basic unit sizes only'. Its milestones date Picture and Side Light discontinuation to 1996 and Double-Hung and Transom discontinuation to 2012 (the narrative's blanket '1968 to 1996' span for bay/picture/side light/transom conflicts with the milestone list — cite the milestones). Terratone was discontinued in 1995, so a Terratone Narroline cannot be colour-matched from current production.
Andersen Art Glass
Andersen excludes naturally occurring colour variations and imperfections in art glass from coverage, confirming that decorative glass units are not expected to be identical to one another. Source: Andersen Art Glass and Decorative Insulating Art Glass Limited Warranty, effective as of August 2007 (© 2007, Reorder LW-5). The document does not itself limit coverage to the 400/200 Series — that designation appears only in the file name — and states art glass panels are designed exclusively for installation on Andersen windows and patio doors.
Other manufacturers saying the same thing
Atlas Pinnacle
Three separate dimensional eras of the same product name. Pre-2013 Pinnacle measured 38¼″ × 13⅛″ at a 5⅝″ exposure; 2013–2017 measured 39⅜″ × 14″ at 6″; 2017-on measures 42″ × 14″ at 6″. A “Pinnacle roof” tells you almost nothing until you know which era.
Atlas Pinnacle · StormMaster Shake
Effective July 2, 2013 Atlas changed the dimensions of both lines — from 38¼″ × 13⅛″ to 39⅜″ × 14″ — and stated plainly that the two generations cannot share a roof deck.
Atlas Pinnacle Pristine
Atlas states a do-not-mix condition between the original Pinnacle Pristine and every later version. It no longer manufactures a shingle at a 5⅝″ exposure or 39⅜″ length, and the current HP42 cannot be installed on the earlier roof.
CertainTeed Landmark and related lines
Even where the product name has not changed, CertainTeed identifies three conditions that defeat a partial repair on an aging roof: the older shingles have lost pliability, the granule blend has been reformulated, and lines such as Landmark converted from English to metric dimensions.
The rule this document serves
Your policy promises repair or replacement with material of like kind and quality. That is a replacement-cost and indemnity obligation, not an appearance theory — and it is why “matching” is the carrier’s word, not the policy’s. Where the installed product cannot be bought, or cannot be combined with what is still sold, the covered building cannot be restored to like kind and quality by patching it, and that is true before anyone argues about how it looks. The full doctrine, and the other 125 documents, are on the discontinued materials hub.
You have the manufacturer's document. The next part is the argument. Handing a carrier a technical bulletin and getting it honoured are two different jobs. The case review is free, and you pay nothing unless we recover.
See if my case qualifies 770-230-2616