Johnstone Supply San Diego Group

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Johnstone Supply San Diego Group Johnstone Supply is a HVAC/R Wholesale Distributor with equipment, parts, supplies, and services for Johnstone Supply: Making it Easier to do Business.

Johnstone Supply El Cajon is a leading HVAC/R Wholesale Distributor with access to over 70,000 locally stocked products and inventory so you can get it same or next day in most cases. Our product selection is continually growing to meet the needs of HVACR contractors to ensure we have the best brands and technology. Plus, our relationships with hundreds of the industry's top manufacturers give you access to a million special order parts. From equipment, to parts, to supplies you can be confident Johnstone has what you need today.

Fujitsu’s eco-friendly R-32 product lines are a perfect blend of innovation, performance, and efficiency to meet all you...
10/10/2026

Fujitsu’s eco-friendly R-32 product lines are a perfect blend of innovation, performance, and efficiency to meet all your application needs. The newly expanded* line of multi-zone systems share common indoor units with their single-zone systems so you can increase your installation flexibility without sacrificing functionality. Visit JohnstoneSupply.com/Fujitsu to learn more about Fujitsu's R-32 ductless mini-split systems.

10/08/2026

Are you ready to rock? Enter for a chance to win The Ultimate Fan Experience Giveaway to see the Masters of Metal live in Las Vegas! Enjoy a VIP trip with luxury accommodations, round-trip airfare, and premium tickets for an immersive concert experience. Enter to win through October 31st. You’ll be off to never-never land!
Thanks to our key sponsors, Goodman, Rectorseal, Bosch, Fujitsu, Colman, Comfort-Aire, and Resideo.

The October Power Deal is here! Save $4 on a Reversible Hex Driver from Malco when you purchase online or in the new mob...
10/06/2026

The October Power Deal is here! Save $4 on a Reversible Hex Driver from Malco when you purchase online or in the new mobile app. Log in now to claim this exclusive deal on the 1/4" and 5/16" hex driver.

One part can cover a wide range of applications with White-Rodgers, our October Supplier of the Month. Their gas valves ...
10/02/2026

One part can cover a wide range of applications with White-Rodgers, our October Supplier of the Month. Their gas valves and ignition controls mean you can fix it on the first trip. And with a Connect Control like the All Spark, you can set things up from your phone before you're even on site. Ask at the counter about all the universal parts from White-Rodgers or shop online at JohnstoneSupply.com.

09/25/2026

Fall allergy season is here. That's why Johnstone carries...the REME HALO Whole Home Indoor Air Purifier from RGF. It’s the solution that keeps your install working at its best, all year long. Do not install if your customer enjoys bacteria, viruses, mold spores and other toxins trapped in their vents. Side effects may include, indoor air quality that feels as fresh as the outdoors, easy installation, and an efficient system. For powerful continuous relief, install the REME HALO today.

Just one week remaining with our September Power Deal on the Pro-1 Universal Wi-Fi Thermostat. Find time to take advanta...
09/23/2026

Just one week remaining with our September Power Deal on the Pro-1 Universal Wi-Fi Thermostat. Find time to take advantage of this online-only $25 discount before the end of this month.

Grow your business with Bosch and the new Bosch IDS Edge. Built to perform for your customers, the Edge also boasts a si...
09/21/2026

Grow your business with Bosch and the new Bosch IDS Edge. Built to perform for your customers, the Edge also boasts a side-discharge outdoor unit for easy residential installs, plus it easily pairs with IDS air handlers, BMAC cased coils, and BGH97 furnaces. Visit JohnstoneSupply.com/Bosch today and discover why the new IDS Edge systems are built for you.

Fall allergy season is here. That means more IAQ installs, more LED cell replacements, and more opportunity for you. RGF...
09/18/2026

Fall allergy season is here. That means more IAQ installs, more LED cell replacements, and more opportunity for you. RGF's HALO-LED is a whole-home solution that protects the system and keeps your customer breathing easier. Stock up now. Shop RGF at Johnstone today.

09/16/2026

Tai McKinney is answering the most common questions we get from you! Like How do I know how many units I should install and where should they go? And when is ductless the right solution vs a ducted heat pump? We got you covered with local trainings and experienced counter staff.
Stop by to ask your burning questions, or just chat. We’d love to see you!

Working a hydronics job? Johnstone has it handled. Boilers, pumps, valves, water heaters and more. All the brands you tr...
09/14/2026

Working a hydronics job? Johnstone has it handled. Boilers, pumps, valves, water heaters and more. All the brands you trust, all in one place. Check out our hydronics insert in this month's flyer or ask your local counter. Johnstone Supply. We've got hydronics handled.

Address

El Cajon, CA

Opening Hours

Monday 7am - 5pm
Tuesday 7am - 5pm
Wednesday 7am - 5pm
Thursday 7am - 5pm
Friday 7am - 5pm
Saturday 8am - 11:30am

Telephone

+19512739791

Website

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