Insulation Price Increases 2027
7 insulation price increases from 7 manufacturers take effect in 2027; the next is Rockwool at 6% on Jan 1, 2027. The median stated increase is 8%. Checked daily · last checked Oct 26, 2026.
7 insulation price increases from 7 manufacturers take effect in 2027. Grouped below by effective date, each with a link to the original letter. 7 of them are still ahead.
- Next effective: Rockwool (Jan 1, 2027, 6%); Owens Corning (Jan 4, 2027, 6%); Johns Manville (Jan 11, 2027, 5% – 12%)
- Typical %: median 8% across the 7 letters effective in 2027 that state a percentage (middle half 8%–8.5%; ranges counted at their midpoint).
- Busiest months in 2027: January 2027 (7)
Method: The sample contains 7 notices effective in 2027: 7 price increases and 0 surcharges; 7 count as price increases and 7 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 Percentage statistics exclude separate surcharges, decreases, rescinded notices and increases without a stated percentage.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 2027
| Effective month | Increases | State a % | Median stated % |
|---|---|---|---|
| January 2027 | 7 | 7 | 8 |
Frequently asked questions
When do insulation price increases usually take effect?
Of the 7 insulation price increases effective in 2027 that PriceLetter has on file, the busiest effective months are January (7). 14% take effect on the 1st of a month.
How much are insulation prices going up in 2027?
7 of the 7 price increases state a percentage. The median stated increase is 8%, and the middle half of letters fall between 8% and 8.5% (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?
7 insulation price increases are still to take effect in 2027: Rockwool on Jan 1, 2027 (6%), Owens Corning on Jan 4, 2027 (6%), Johns Manville on Jan 11, 2027 (5–12%), Knauf on Jan 22, 2027 (6–10%), Knauf Commercial Insulation on Jan 22, 2027 (8%), Knauf Oem Insulation on Jan 22, 2027 (8–10%), Manson on Jan 22, 2027 (6–10%).
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 2027 insulation price increases by effective date
January 2027 (7)
| Effective | Brand | Products | Increase | Source |
|---|---|---|---|---|
| Jan 1, 2027 | Rockwool | Insulation | 6% | Original letter · ABC Supply Interiors Original letter · General Insulation Company |
| Jan 4, 2027 | Owens Corning | Insulation | 6% | Original letter · ABC Supply Interiors |
| Jan 11, 2027 | Johns Manville | Insulation Products JOHNS MANVILLE INSULATION SYSTEMS 5% – 12% PRICE INCREASES EFFECTIVE JANUARY 11, 2027 |
5% – 12% | Original letter · General Insulation Company |
| Jan 22, 2027 | Knauf | Commercial KNAUF 6% – 10% PRICE INCREASES ON ALL COMMERCIAL, INDUSTRIAL, AND AIR HANDLING PRODUCTS – EFFECTIVE JANUARY 22, 2027 |
6% – 10% | Original letter · General Insulation Company Original letter · ABC Supply Interiors |
| Jan 22, 2027 | Knauf Commercial Insulation | Commercial insulation KNAUF COMMERCIAL INSULATION 8% PRICE INCREASE ON ALL PRODUCTS – EFFECTIVE JANUARY 22, 2027 |
8% | Original letter · General Insulation Company |
| Jan 22, 2027 | Knauf Oem Insulation | OEM insulation products KNAUF OEM INSULATION 8%-10% PRICE INCREASES ON ALL PRODUCTS – EFFECTIVE JANUARY 22, 2027 |
8%-10% | Original letter · General Insulation Company |
| Jan 22, 2027 | Manson | Insulation products MANSON 6%-10% PRICE INCREASES – EFFECTIVE JANUARY 22, 2027 |
6%-10% | Original letter · General Insulation Company |