Insulation Price Increases
60 manufacturer price-increase letters from 33 brands. 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 · January 2026 · October 2025 · September 2025 · July 2025 · May 2025 · April 2025 · February 2025 · January 2025
| Effective | Brand | Products | Increase | Source |
|---|---|---|---|---|
| Jan 4, 2027 | Owens Corning | Insulation | see letter | letter · ABC Supply Interiors |
| Jan 1, 2027 | Rockwool | Insulation | 6% | letter · ABC Supply Interiors |
| Nov 16, 2026 | Owens Corning Insulation | see letter | letter · Negwer Materials | |
| Oct 26, 2026 next 30 days |
DuPont | Insulation | see letter | letter · ABC Supply Interiors |
| Oct 22, 2026 next 30 days |
DuPont | Insulation | see letter | letter · ABC Supply Interiors |
| Oct 1, 2026 | Hunter Xci | Insulation | see letter | letter · ABC Supply Interiors |
| Sep 30, 2026 | Johns Manville | Polyiso Foam Sheathing | 8% | letter · Performance Pro Supply |
| Sep 1, 2026 | Knauf | Insulation | see letter | letter · ABC Supply Interiors |
| Aug 10, 2026 | Sika | Insulation | 3-6% | letter · ABC Supply Interiors |
| Aug 3, 2026 | Ox Engineered Products | Insulation | 5%, 6%, 8% | letter · ABC Supply Interiors |
| Aug 1, 2026 | Carlisle, Hunter, & Versico | Carlisle, Hunter, and Versico will implement a price increase of 5%-8%, effective August 1, 2026, on all Polyiso Insulation and Low Foam products ... |
5%-8% | letter · Convoy Supply (US) |
| Aug 1, 2026 | Hunter Xci | Insulation | see letter | letter · ABC Supply Interiors |
| Aug 1, 2026 | STI | STI Products | 10% | letter · Performance Pro Supply |
| Jul 6, 2026 | PolyCon | PolyCon Polyurethane Foam Products | $.29 | letter · Performance Pro Supply |
| Jul 1, 2026 | Atlas / Hunter / SOPREMA | Atlas, Hunter, and SOPREMA will implement a price increase of 5%-8%, effective July 1st, 2026, on all Polyiso Insulation products... |
5%-8% | letter · Convoy Supply (US) |
| Jul 1, 2026 | CertainTeed | CertainTeed Fiberglass Insulation Products | 6% | letter · Performance Pro Supply |
| Jul 1, 2026 | CertainTeed Insulation | see letter | letter · Negwer Materials | |
| Jul 1, 2026 | Intec | Intec FORCE@ and VORTEC@ Machines | see letter | letter · Performance Pro Supply |
| Jul 1, 2026 | Owens Corning – Thermafiber | Insulation | see letter | letter · ABC Supply Interiors |
| Jul 1, 2026 | Rockwool | Insulation | 8% | letter · ABC Supply Interiors Conklin Metal Industries letter · Performance Pro Supply |
| Jun 29, 2026 | Johns Manville | Insulation | 6% | letter · ABC Supply Interiors letter · Performance Pro Supply |
| Jun 27, 2026 | DuPont | Insulation | 5% | letter · ABC Supply Interiors |
| Jun 26, 2026 | Knauf | Insulation | 6% / 8% | letter · ABC Supply Interiors Conklin Metal Industries Universal Supply |
| Jun 15, 2026 | DuPont | Insulation | see letter | letter · ABC Supply Interiors |
| Jun 15, 2026 | Insulfoam | Carlisle will implement an Energy Surcharge of 7% on EPS products effective June 15, 2026 ... |
7% | letter · Convoy Supply (US) |
| Jun 5, 2026 | Johns Manville | Insulation | 10% | letter · ABC Supply Interiors letter · Performance Pro Supply |
| May 28, 2026 | DuPont | Insulation | 4% | letter · ABC Supply Interiors |
| May 25, 2026 | Kingspan | Insulation | 4%-8% | letter · ABC Supply Interiors letter · Performance Pro Supply |
| May 22, 2026 | Johns Manville | Insulation | 5%-10% | letter · ABC Supply Interiors |
| May 15, 2026 | Johns Manville | Johns Manville Corbond® Spray Foam | 15% | letter · Performance Pro Supply |
| May 15, 2026 | NCFI | NCFI Spray Foam Systems | 12% | letter · Performance Pro Supply |
| May 11, 2026 | Kingspan | Insulation | see letter | letter · ABC Supply Interiors |
| May 1, 2026 | Johns Manville | Insulation | 6% | letter · ABC Supply Interiors letter · Performance Pro Supply |
| May 1, 2026 | Sika | Insulation | 6% | letter · ABC Supply Interiors |
| Apr 20, 2026 | Carlisle | Carlisle Spray Foam Insulation Products | 10% | letter · Performance Pro Supply |
| Apr 17, 2026 | Enverge | Enverge Spray Foam Products | $0.14 per lb. | letter · Performance Pro Supply |
| Apr 15, 2026 | Elastochem | Elastochem Spray Polyurethane Foam Products | 8-12% | letter · Performance Pro Supply |
| Apr 15, 2026 | Everest | Everest Systems Spray Polyurethane Foam Systems | 15% | letter · Performance Pro Supply |
| Apr 15, 2026 | HBS | HBS Spray Foam Insulation | $0.14 per lb. | letter · Performance Pro Supply |
| Apr 15, 2026 | Natural Polymers | Natural Polymers Spray Foam Products | 10% | letter · Performance Pro Supply |
| Apr 15, 2026 | Quadrant EnviroSeal | Quadrant EnviroSeal | $0.18 per lb. | letter · Performance Pro Supply |
| Apr 15, 2026 | UPC | UPC Polyurethane Products | 12% per lb. | letter · Performance Pro Supply |
| Apr 13, 2026 | Hunter | Hunter will implement a price increase of 5%-7%, effective April 13, 2026, on Polyiso insulation products ... |
5%-7% | letter · Convoy Supply (US) |
| Mar 31, 2026 | Owens Corning – Foamular | Insulation | see letter | letter · ABC Supply Interiors |
| Jan 9, 2026 | Knauf | Insulation | 6% | letter · ABC Supply Interiors |
| Jan 1, 2026 | Mountain Fiber | Mountain Fiber | 7% | letter · Performance Pro Supply |
| Oct 1, 2025 | Lamtec | LAMTEC | $5.34-$12.08/msf | letter · Performance Pro Supply |
| Sep 1, 2025 | Graco | Graco | see letter | letter · Performance Pro Supply |
| Jul 21, 2025 | Hunter | Hunter will implement a price increase of up to 5%, effective July 21, 2025, on Polyiso insulation products ... |
up to 5% | letter · Convoy Supply (US) |
| Jul 8, 2025 | Johns Manville | Insulation | 8% | letter · ABC Supply Interiors letter · Performance Pro Supply |
| Jul 7, 2025 | Owens Corning – Thermafiber | Insulation | see letter | letter · ABC Supply Interiors |
| Jul 7, 2025 | Rockwool | Insulation | 8% | letter · ABC Supply Interiors letter · Convoy Supply (US) |
| May 12, 2025 | Intec | Intec | $0.50 per coverall, $200 per HONDA motor, $1.25 per vacBAG | letter · Performance Pro Supply |
| Apr 21, 2025 | Sika | Insulation | see letter | letter · ABC Supply Interiors |
| Feb 2, 2025 | CertainTeed | CertainTeed Products | 6% | letter · Performance Pro Supply |
| Feb 1, 2025 | CertainTeed | Insulation | see letter | letter · ABC Supply Interiors |
| Feb 1, 2025 | Sika | Insulation | see letter | letter · ABC Supply Interiors |
| Jan 15, 2025 | Johns Manville | Insulation | 6-15% | letter · ABC Supply Interiors letter · Performance Pro Supply |
| Jan 3, 2025 | Knauf | Insulation | 6-8% | letter · ABC Supply Interiors letter · Performance Pro Supply |
| Jan 2, 2025 | Owens Corning | Insulation | 6% | letter · ABC Supply Interiors letter · Performance Pro Supply |