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Price Increases September 2025: Manufacturer Letters by Trade
43 manufacturer price-increase letters from 43 brands take effect in September 2025, grouped by trade. Every row links to the original letter.
43letters
43brands
8trades
6.5%median stated increase
By trade: Electrical Supply (24) · Plumbing Supply (7) · Roofing Material (3) · Window & Door (3) · Drywall (2) · HVAC Equipment (2) · Fire Sprinkler & Fire Protection (1) · Insulation (1)
Electrical Supply (24) Electrical September 2025 →
| Effective | Brand | Products | Increase | Source |
|---|---|---|---|---|
| Sep 1, 2025 | Allied Moulded | Price increase. | see letter | Womack Electric Supply |
| Sep 1, 2025 | American Fittings | Price increase. | see letter | Womack Electric Supply |
| Sep 1, 2025 | Baco Controls | Price increase. | see letter | Womack Electric Supply |
| Sep 1, 2025 | Cementex | Price increase. | see letter | Womack Electric Supply |
| Sep 1, 2025 | Danfoss | Price increase. | see letter | Womack Electric Supply |
| Sep 1, 2025 | LEDvance | Price increase. | see letter | Womack Electric Supply |
| Sep 1, 2025 | Mersen | Price increase. | see letter | Womack Electric Supply |
| Sep 1, 2025 | Pilz | Price increase. | see letter | Womack Electric Supply |
| Sep 1, 2025 | Reliance Controls | Price increase. | see letter | Womack Electric Supply |
| Sep 1, 2025 | Siemens | Price increase. | see letter | Womack Electric Supply |
| Sep 1, 2025 | Wago | Price increase. | see letter | Womack Electric Supply |
| Sep 2, 2025 | IDEC | Tariff fees increase. | see letter | Womack Electric Supply |
| Sep 2, 2025 | TCI | Price increase. | see letter | Womack Electric Supply |
| Sep 8, 2025 | Southwire | Cutting and parallel charge price increase. | see letter | Womack Electric Supply |
| Sep 9, 2025 | King Heating Solutions | Price increase. | see letter | Womack Electric Supply |
| Sep 15, 2025 | Eaton Power and Wiring Device | Price increase. | see letter | Womack Electric Supply |
| Sep 15, 2025 | Fluke | Price increase. | see letter | Womack Electric Supply |
| Sep 15, 2025 | Generac | Price increase. | see letter | Womack Electric Supply |
| Sep 18, 2025 | Erico | Price increase. | see letter | Womack Electric Supply |
| Sep 18, 2025 | Ilsco | Price increase. | see letter | Womack Electric Supply |
| Sep 18, 2025 | nVent: Caddy | Price increase. | see letter | Womack Electric Supply |
| Sep 20, 2025 | Selecta Switch – DURACELL Batteries | Price increase. | see letter | Womack Electric Supply |
| Sep 29, 2025 | Atkore – PVC Conduit | Price increase. | see letter | Womack Electric Supply |
| Sep 29, 2025 | Atkore – Steel Conduit | Price increase. | see letter | Womack Electric Supply |
Plumbing Supply (7) Plumbing & PVF September 2025 →
| Effective | Brand | Products | Increase | Source |
|---|---|---|---|---|
| Sep 1, 2025 | Produits Neptune | Canada pricing Effective September 1, 2025, Produits Neptune will implement a 5.67% increase on net prices, with current quotes and special agreements honored until December 31, 2025. |
5.67% | letter · Bartle & Gibson (Canada) letter · Bartle & Gibson (Canada) |
| Sep 2, 2025 | Merit Brass | 7-15% tariff-related increase on select fittings and nipples. For more info, see Merit's letter to their customers | 7-15% | letter · Cooney Brothers |
| Sep 8, 2025 | Apollo | 25% tariff-related increase on Press fittings (copper) and 45% on Tectite Push fittings and valves. | 25%, 45% | Cooney Brothers |
| Sep 8, 2025 | Matco-Norca | 7% tariff-related increase on select copper press fittings. | 7% | Cooney Brothers |
| Sep 15, 2025 | Watts | 3-22% tariff-related increase on select products. For more info, see Watts' letter to their customers. | 3-22% | letter · Cooney Brothers letter · Bartle & Gibson (Canada) |
| Sep 15, 2025 | Zurn Elkay Water Solutions | Canada pricing Zurn Elkay Water Solutions will implement a 10% price increase on Wilkins Fire Valves effective September 15, 2025. |
10% | letter · Bartle & Gibson (Canada) |
| Sep 17, 2025 | Crane | 5.8% average tariff-related increase on select product families across Crane Cast Steel, Bronze, Cast Iron, Ball, and Forged brands as well as Stochkham, Aloyco, Centerline, Flo… | 5.8% | letter · Cooney Brothers |
Roofing Material (3) Roofing September 2025 →
| Effective | Brand | Products | Increase | Source |
|---|---|---|---|---|
| Sep 1, 2025 | Crystalite | Crystalite will implement a price increase of 5%, effective September 1st, 2025, on all products... | 5% | letter · Convoy Supply (US) |
| Sep 1, 2025 | Marathon Roofing Products | Aluminum and Cast-Iron products has announced a price increase due to the tariffs on Aluminum and Cast-Iron products. We will adjust our prices effective on September 1, 2025. |
see letter | Universal Supply |
| Sep 2, 2025 | Berger | aluminum, steel, vinyl and other products has announced a price increase due to the tariffs of approximately 4-12% on all aluminum, steel, vinyl and other products. We will adjust our prices effective with shipments on … |
approximately 4-12% | Universal Supply |
Window & Door (3) Windows & Doors September 2025 →
| Effective | Brand | Products | Increase | Source |
|---|---|---|---|---|
| Sep 15, 2025 | Ply Gem | their Aluminum Clad Doors has announced a price increase of approximately 5% on their Patio Door Series and 10% on all their Aluminum Clad Doors. We will adjust our prices effective with shipments on Sep… |
approximately 5%, 10% | Universal Supply |
| Sep 15, 2025 | Silver Line | their Patio Door Series has announced a price increase of approximately 5% on their Patio Door Series. We will adjust our prices effective with shipments on September 15, 2025. |
approximately 5% | Universal Supply |
| Sep 15, 2025 | Simonton | their Patio Door Series has announced a price increase of approximately 5% on their Patio Door Series. We will adjust our prices effective with shipments on September 15, 2025. |
approximately 5% | Universal Supply |
Drywall (2) Drywall & Interiors September 2025 →
| Effective | Brand | Products | Increase | Source |
|---|---|---|---|---|
| Sep 1, 2025 | ATAS International | Exterior Walls has announced a price increase due to the tariffs of approximately 6% on all aluminum panels, trims, and flat sheet products. We will adjust our prices effective September 1, 2025. |
approximately 6% | letter · ABC Supply Interiors Universal Supply |
| Sep 1, 2025 | Specified Technologies | see letter | letter · Negwer Materials Womack Electric Supply |
HVAC Equipment (2) HVAC September 2025 →
| Effective | Brand | Products | Increase | Source |
|---|---|---|---|---|
| Sep 1, 2025 | Caleffi | Canada pricing Caleffi will implement a 15% list price increase effective September 1, 2025, with Hydronic Controls excluded. Orders placed before September 1 for immediate delivery will be ho… |
15% | letter · Bartle & Gibson (Canada) |
| Sep 27, 2025 | Trane | Trane Technologies’ commercial HVAC division announced price increases on select Trane equipment and services, with the majority in the 1% to 4% range. | 1% to 4% | Paschal (citing ACHR/manufacturers) |
Fire Sprinkler & Fire Protection (1) Fire Protection September 2025 →
| Effective | Brand | Products | Increase | Source |
|---|---|---|---|---|
| Sep 15, 2025 | Watts/Zurn | Valves and Backflow | 8-15% | letter · Core & Main Fire Protection |
Insulation (1) Insulation September 2025 →
| Effective | Brand | Products | Increase | Source |
|---|---|---|---|---|
| Sep 1, 2025 | Graco | Graco | see letter | letter · Performance Pro Supply |
Frequently asked questions
Which manufacturers are raising prices in September 2025?
43 letters from 43 brands across 8 trades take effect in September 2025. The first: ATAS International (Sep 1, 2025, approximately 6%); Allied Moulded (Sep 1, 2025); American Fittings (Sep 1, 2025).
How big are the September 2025 price increases?
16 letters state a percentage: the median is 6.5% and the middle half fall between 5% and 11% (ranges counted at their midpoint).
Which trades have the most September 2025 increases?
Electrical Supply (24), Plumbing Supply (7), Roofing Material (3), Window & Door (3), Drywall (2).
Can I get these dates in my calendar?
Yes: subscribe to the all-letters calendar feed. Each letter is an all-day event on its effective date. 42% of the September 2025 letters take effect on the 1st.