2 siding manufacturers have announced price increases taking effect in March 2021, led by CertainTeed (up to 8%, Mar 1, 2021).
Checked daily · last checked Nov 2, 2026.
Siding Price Increases March 2021
2 Siding manufacturer price-increase letters from 2 brands taking effect in March 2021. Every row links to the original letter or posting.
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| Effective | Brand | Products | Increase | Source |
|---|---|---|---|---|
| Mar 8, 2021 | Ply Gem | Ply Gem letter posted by ABC Supply: As a result, we will be implementing an 8-10% price increase on the following product categories on March 8, 2021. | 8-10% | Original letter · ABC Supply |
| Mar 1, 2021 | CertainTeed | CertainTeed letter posted by ABC Supply: Prices will increase up to 8%, effective with orders received beginning March 1, 2021, for the product categories listed below: CertainT… | up to 8% | Original letter · ABC Supply |