Johnstone Supply regularly receives price increases from our manufacturers to certain products and/or product families. In an effort to communicate these manufacturer price increases to our customers, we publish them here in advance of their effective dates. Recently we have been experiencing a very volatile price environment as tariffs are being imposed on imports so prices may change without notice.
Below are the details of our recent and upcoming manufacturer price increases:
Recent & Upcoming Price Changes
Robertshaw price increase 0.64% effective October 1, 2026
Amana PTAC price increase 14.24% effective September 1, 2026
Emerson Nidec Motors price increase effective August 16, 2026
Rectorseal price increase 3% effective August 6, 2026
Generalaire price increase effective August 5, 2026
Navien price increase effective August 5, 2026
Goodman Daikin Equipment price increase 4.5-5.5% effective August 3, 2026
Amana PTC price increase effective August 2, 2026
Diversitech price increase effective August 1, 2026
Aprilaire price increase 3-5% effective August 1, 2026
Copper price increase 1-2% effective July 28, 2026
Centrotherm price increase 7% effective July 12, 2026
Fujitsu price increase 7% effective July 6, 2026
Modine Unit Heaters price increase effective July 1, 2026
White-Rodgers Controls price increase effective July 1, 2026
Rectorseal price increase effective July 1, 2026
Emerson Nidec Motors price increase effective June 27, 2026
Sporlan price increase 5% effective June 23, 2026
AO Smith Water Heaters price increase 7% effective June 22, 2026
ATCO Flex price increase 8% effective June 15, 2026
Southwire price increase 2.47% effective June 5, 2026
Resideo/Honeywell price increase 3% effective June 1, 2026
Proflex CSST price increase 6% effective June 1, 2026
Diversitech price increase 1% effective June 1, 2026
Emerson Nidec Motors price increase effective June 1, 2026
ICP Parts price increase 15% effective May 31, 2026
Honeywell Commercial price increase 5% effective May 30, 2026
Panasonic Fans price increase Price Correction effective May 22, 2026
AO Smith Water Heaters price increase 7% effective May 18, 2026
ICP Parts price increase 10% effective May 15, 2026
ICP Parts price increase 16% effective May 15, 2026
Copper price increase effective May 13, 2026
NuCalgon price increase 15% effective May 6, 2026
Little Giant Pumps price increase 2% effective May 1, 2026
Sporlan price increase 4% effective May 1, 2026
ICP/Heil/Tempstar Equipment price increase 8% effective April 27, 2026
National Comfort Products price increase 7% effective April 16, 2026
Copper price increase 2-5% effective April 14, 2026
IBC Tankless Heaters price increase effective April 13, 2026
Infrasave price increase effective April 9, 2026
ICP Parts price increase 4% effective April 1, 2026
Amana PTAC price increase 14.24% effective September 1, 2026
Emerson Nidec Motors price increase effective August 16, 2026
Rectorseal price increase 3% effective August 6, 2026
Generalaire price increase effective August 5, 2026
Navien price increase effective August 5, 2026
Goodman Daikin Equipment price increase 4.5-5.5% effective August 3, 2026
Amana PTC price increase effective August 2, 2026
Diversitech price increase effective August 1, 2026
Aprilaire price increase 3-5% effective August 1, 2026
Copper price increase 1-2% effective July 28, 2026
Centrotherm price increase 7% effective July 12, 2026
Fujitsu price increase 7% effective July 6, 2026
Modine Unit Heaters price increase effective July 1, 2026
White-Rodgers Controls price increase effective July 1, 2026
Rectorseal price increase effective July 1, 2026
Emerson Nidec Motors price increase effective June 27, 2026
Sporlan price increase 5% effective June 23, 2026
AO Smith Water Heaters price increase 7% effective June 22, 2026
ATCO Flex price increase 8% effective June 15, 2026
Southwire price increase 2.47% effective June 5, 2026
Resideo/Honeywell price increase 3% effective June 1, 2026
Proflex CSST price increase 6% effective June 1, 2026
Diversitech price increase 1% effective June 1, 2026
Emerson Nidec Motors price increase effective June 1, 2026
ICP Parts price increase 15% effective May 31, 2026
Honeywell Commercial price increase 5% effective May 30, 2026
Panasonic Fans price increase Price Correction effective May 22, 2026
AO Smith Water Heaters price increase 7% effective May 18, 2026
ICP Parts price increase 10% effective May 15, 2026
ICP Parts price increase 16% effective May 15, 2026
Copper price increase effective May 13, 2026
NuCalgon price increase 15% effective May 6, 2026
Little Giant Pumps price increase 2% effective May 1, 2026
Sporlan price increase 4% effective May 1, 2026
ICP/Heil/Tempstar Equipment price increase 8% effective April 27, 2026
National Comfort Products price increase 7% effective April 16, 2026
Copper price increase 2-5% effective April 14, 2026
IBC Tankless Heaters price increase effective April 13, 2026
Infrasave price increase effective April 9, 2026
ICP Parts price increase 4% effective April 1, 2026
