Siding Price Increases August 2026
7 manufacturer price-increase letters from 7 brands taking effect in August 2026. Every row links to the original letter or posting.
By month: January 2027 · November 2026 · October 2026 · September 2026 · August 2026 · July 2026 · June 2026 · May 2026 · April 2026 · March 2026 · February 2026 · January 2026 · August 2025 · March 2025 · January 2025
| Effective | Brand | Products | Increase | Source |
|---|---|---|---|---|
| Aug 24, 2026 | Westlake Royal Building Products | Vinyl Siding Products | 5%-7% | letter · ABC Supply |
| Aug 24, 2026 | Westlake Royal Building Products Foundry Specialty Siding | Specialty Siding | 5%–7% | letter · ABC Supply |
| Aug 24, 2026 | Westlake Royal Building Products Mid-America | Shutters, Blocks and Vents | 5%–7% | letter · ABC Supply |
| Aug 10, 2026 | Associated Materials Innovations | Vinyl siding products | 3-6% | letter · ABC Supply |
| Aug 1, 2026 | CertainTeed | Vinyl Siding | up to 6.0% | letter · ABC Supply letter · Mueller Roofing Distributors |
| Aug 1, 2026 | Garden State Lumber | NuCedar Shingle products has announced a price increase of approximately 5% on all NuCedar Shingle products. We will adjust our prices effective with shipments on August 1, 2026. |
approximately 5% | Universal Supply |
| Aug 1, 2026 | Mastic | has announced a price increase of approximately 5% on all Vinyl Siding and accessories, Injection Molded Products, and PVC Trim. We will adjust our prices effective with shipmen… |
approximately 5% | Universal Supply |