Insulation Price Increases 2025
15 insulation price increases from 12 manufacturers take effect in 2025; the latest is Lamtec on Oct 1, 2025. The median stated increase is 6.5%. Checked daily · last checked Oct 26, 2026.
15 insulation price increases from 12 manufacturers take effect in 2025. Grouped below by effective date, each with a link to the original letter.
- Latest effective: Lamtec (Oct 1, 2025, $5.34-$12.08/msf); Graco (Sep 1, 2025); Hunter (Jul 21, 2025, up to 5%)
- Typical %: median 6.5% across the 8 letters effective in 2025 that state a percentage (middle half 6%–8%; ranges counted at their midpoint).
- Busiest months in 2025: July 2025 (4), January 2025 (3), February 2025 (3)
Method: The sample contains 15 notices effective in 2025: 15 price increases and 0 surcharges; 15 count as price increases and 8 include a usable stated percentage. Percentage statistics exclude separate surcharges, decreases, rescinded notices and increases without a stated percentage. A range such as 3–5% counts once at its midpoint; “up to” and “average” use the stated figure. Each notice has equal weight. These statistics describe collected announcements, not a typical contractor’s actual invoice; pricing can vary by product, region, supplier and account terms.
When insulation increases take effect in 2025
| Effective month | Increases | State a % | Median stated % |
|---|---|---|---|
| January 2025 | 3 | 3 | – |
| February 2025 | 3 | 2 | – |
| April 2025 | 1 | 0 | – |
| May 2025 | 1 | 0 | – |
| June 2025 | 1 | 0 | – |
| July 2025 | 4 | 3 | – |
| September 2025 | 1 | 0 | – |
| October 2025 | 1 | 0 | – |
Frequently asked questions
When do insulation price increases usually take effect?
Of the 15 insulation price increases effective in 2025 that PriceLetter has on file, the busiest effective months are July (4), January (3), February (3). 27% take effect on the 1st of a month.
How much are insulation prices going up in 2025?
8 of the 15 price increases state a percentage. The median stated increase is 6.5%, and the middle half of letters fall between 6% and 8% (a stated range like "3–5%" counts at its midpoint). Many letters say "up to" a figure, so actual increases vary by product line.
Are more insulation price increases coming?
No insulation price increase on file is still to take effect in 2025. New letters are added daily.
Where does this data come from?
From manufacturer price-increase letters posted publicly by insulation distributors and the trade press, checked daily. Each row links to the original letter or posting. Always confirm pricing with your supplier.
All 2025 insulation price increases by effective date
January 2025 (3)
| Effective | Brand | Products | Increase | Source |
|---|---|---|---|---|
| Jan 2, 2025 | Owens Corning | Insulation | 6% | Original letter · ABC Supply Interiors Original letter · Performance Pro Supply |
| Jan 3, 2025 | Knauf | Insulation | 6-8% | Original letter · ABC Supply Interiors Original letter · Performance Pro Supply |
| Jan 15, 2025 | Johns Manville | Insulation | 6-15% | Original letter · ABC Supply Interiors Original letter · Performance Pro Supply |
February 2025 (3)
| Effective | Brand | Products | Increase | Source |
|---|---|---|---|---|
| Feb 1, 2025 | CertainTeed | Insulation | see letter | Original letter · ABC Supply Interiors |
| Feb 1, 2025 | Sika | Insulation | 5% for wet pail products | Original letter · ABC Supply Interiors |
| Feb 2, 2025 | CertainTeed | CertainTeed Products | 6% | Original letter · Performance Pro Supply |
April 2025 (1)
| Effective | Brand | Products | Increase | Source |
|---|---|---|---|---|
| Apr 21, 2025 | Sika | Insulation | see letter | Original letter · ABC Supply Interiors |
May 2025 (1)
| Effective | Brand | Products | Increase | Source |
|---|---|---|---|---|
| May 12, 2025 | Intec | Intec | $0.50 per coverall, $200 per HONDA motor, $1.25 per vacBAG | Original letter · Performance Pro Supply |
June 2025 (1)
| Effective | Brand | Products | Increase | Source |
|---|---|---|---|---|
| Jun 30, 2025 | Armacell | ARMACELL Price Increase Effective June 30, 2025 | see letter | Original letter · M&N Plumbing Supply |
July 2025 (4)
| Effective | Brand | Products | Increase | Source |
|---|---|---|---|---|
| Jul 7, 2025 | Owens Corning – Thermafiber | Insulation | see letter | Original letter · ABC Supply Interiors |
| Jul 7, 2025 | Rockwool | Insulation | 8% | Original letter · ABC Supply Interiors Original letter · Convoy Supply (US) |
| Jul 8, 2025 | Johns Manville | Insulation | 8% | Original letter · ABC Supply Interiors Original letter · Performance Pro Supply |
| Jul 21, 2025 | Hunter | Polyiso insulation Hunter will implement a price increase of up to 5%, effective July 21, 2025, on Polyiso insulation products ... |
up to 5% | Original letter · Convoy Supply (US) |
September 2025 (1)
| Effective | Brand | Products | Increase | Source |
|---|---|---|---|---|
| Sep 1, 2025 | Graco | Graco | see letter | Original letter · Performance Pro Supply |
October 2025 (1)
| Effective | Brand | Products | Increase | Source |
|---|---|---|---|---|
| Oct 1, 2025 | Lamtec | LAMTEC | $5.34-$12.08/msf | Original letter · Performance Pro Supply |