Johnstone Supply Fairfield

Johnstone Supply Fairfield Johnstone Supply Fairfield is a wholesale distributor serving professional HVACR contractors. Johnstone Supply: Making our communities comfortable and healthy.

Johnstone has the largest selection of equipment and genuine OEM parts in the industry. We have replacements for nearly every major brand and an extensive cross reference that makes sourcing hard-to-find parts easy. Our selection is continually expanding to meet the needs of our contractors and to ensure we have the best brands and technology to get the job done.

Happy Labor Day from Johnstone Supply The Founders Group! Our branches will be closed today in celebration of the holida...
09/07/2026

Happy Labor Day from Johnstone Supply The Founders Group! Our branches will be closed today in celebration of the holiday. We look forward to serving you tomorrow!

The September Power Deal is here! Save $25 on a Universal Wi-Fi Thermostat from Pro-1 when you purchase online or in the...
09/04/2026

The September Power Deal is here! Save $25 on a Universal Wi-Fi Thermostat from Pro-1 when you purchase online or in the new mobile app. Log in now to claim this exclusive deal on the thermostat that fits every system.

There’s a ductless solution for every room and every job with Daikin, our September Supplier of the Month. Offering sing...
09/02/2026

There’s a ductless solution for every room and every job with Daikin, our September Supplier of the Month. Offering single-zone and multi-zone systems that independently manage temperatures across all the different zones of your customers homes. Find out more on how to provide heating and cooling solutions for sunrooms, workshops, multi-family units, additions, and more at JohnstoneSupply.com/Daikin.

Enter for a chance to win $500 in JU Rewards! Complete the course, Cielo – Ducted and Ductless Thermostats Features and ...
08/31/2026

Enter for a chance to win $500 in JU Rewards! Complete the course, Cielo – Ducted and Ductless Thermostats Features and Benefits from Pro 1 by DiversiTech before the September 30th, 2026 deadline for your entry. Cielo provides smart thermostat solutions for both Mini-Splits and Central HVAC Systems. Get trained and enter for a chance to win! Visit JohnstoneUniversity.com to for full terms & conditions.

Replace over 1,000 part numbers with White-Rodgers Connect Controls. Check out the Universal Furnace Control, HSI Igniti...
08/26/2026

Replace over 1,000 part numbers with White-Rodgers Connect Controls. Check out the Universal Furnace Control, HSI Ignition Module, and the All-Spark. No Wi-Fi. No login. Just faster jobs and fewer callbacks. Stop by in-store and pick one up to try on your next job.

Just one week remaining with our August Power Deal on the Ranco Digital Defrost Controller. Find time to take advantage ...
08/24/2026

Just one week remaining with our August Power Deal on the Ranco Digital Defrost Controller. Find time to take advantage of this online-only $10 discount before the end of this month.

08/22/2026

Veto Pro Pac tool bags have arrived at Johnstone Supply! Designed for the demands of HVAC professionals, these bags keep your tools organized and ready to go. Just look at everything you can fit!
Stop by the counter and ask a team member about Veto Pro Pac today!

Two speeds, one motor. The Genteq Evergreen OM covers 825 and 1075 RPM calls in one shot. Why stock two motors when one ...
08/21/2026

Two speeds, one motor. The Genteq Evergreen OM covers 825 and 1075 RPM calls in one shot. Why stock two motors when one covers both, costs less, and upgrades you to an ECM? Its shorter body fits more places, too. Stop by in-store to learn more about the Evergreen OM today.

For two more weeks, buy six AprilAire E-Series dehumidifiers and get the seventh free. Mix and match any model, they all...
08/19/2026

For two more weeks, buy six AprilAire E-Series dehumidifiers and get the seventh free. Mix and match any model, they all stack toward your free unit. Don’t miss out, stop in-store and ask our counter staff how to claim your free dehumidifier before the end of the month.

08/18/2026

The Rooftop Selector finds you the right equipment for every commercial job you have, no matter what brand needs replacing. Log in online and quickly identify the right equipment, faster than ever.

Address

2860 Cordelia Road Ste 100
Fairfield, CA
94534

Opening Hours

Monday 7am - 5pm
Tuesday 7am - 5pm
Wednesday 7am - 5pm
Thursday 7am - 5pm
Friday 7am - 5pm

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