J&M Mechanical, LLC

J&M Mechanical, LLC LOCAL - FAMILY OWNED - DEPENDABLE
Heating and Cooling Professionals

Serving the Black Hills, SD

Most people don't think about their heating and cooling system until it stops working. Thankfully, HVAC technicians thin...
06/22/2026

Most people don't think about their heating and cooling system until it stops working. Thankfully, HVAC technicians think about it every day. Happy National HVAC Tech Day to the hardworking professionals who keep our customers comfortable year-round!

Happy Father’s Day to all the dads who can fix just about anything... and know exactly where the thermostat should be se...
06/21/2026

Happy Father’s Day to all the dads who can fix just about anything... and know exactly where the thermostat should be set. 😆

We hope your day is filled with family, relaxation, and perfect indoor comfort.

Happy First Day of Summer! ☀️The longest days of the year are here, and so is the season your air conditioner has been p...
06/20/2026

Happy First Day of Summer! ☀️

The longest days of the year are here, and so is the season your air conditioner has been preparing for. If your system isn't keeping up with the heat, give us a call. We're here to keep your home cool and comfortable all summer long.

Your air conditioner has one job this summer: keep you cool. 😎A seasonal tune-up helps your system run more efficiently,...
06/14/2026

Your air conditioner has one job this summer: keep you cool. 😎

A seasonal tune-up helps your system run more efficiently, catch small issues before they become expensive repairs, and keep your home comfortable when temperatures climb.

Don't wait for a breakdown to find out your AC needs attention. Schedule your tune-up today!

Older systems can become noisy as they age, turning peaceful summer evenings into a constant hum, rattle, or roar. With ...
06/12/2026

Older systems can become noisy as they age, turning peaceful summer evenings into a constant hum, rattle, or roar. With a high-efficiency Coleman system, you can enjoy powerful cooling and whisper-quiet operation designed to keep your home comfortable without all the noise.

Sleep better, relax easier, and enjoy the comfort of a quieter home.

You love all your pets . . . but not the dander they leave behind in your air. 🐶 🐱We have a solution for that! Call us t...
06/07/2026

You love all your pets . . . but not the dander they leave behind in your air. 🐶 🐱We have a solution for that! Call us today to learn about our whole-home air purification.

Your HVAC system works hard year-round. Give it the care it deserves with professional maintenance you can trust. Call u...
06/04/2026

Your HVAC system works hard year-round. Give it the care it deserves with professional maintenance you can trust. Call us today to schedule!

🔥 Your comfort shouldn’t come with stress. Ask us about financing options available for system repairs and replacements.
05/31/2026

🔥 Your comfort shouldn’t come with stress. Ask us about financing options available for system repairs and replacements.

There’s nothing better than walking into a cool home after a long day. If your AC isn’t keeping up, give our team a call...
05/28/2026

There’s nothing better than walking into a cool home after a long day. If your AC isn’t keeping up, give our team a call—we’ll help get your comfort back on track fast. 🔧❄️

Today we remember and honor the brave men and women who made the ultimate sacrifice for our country. Wishing everyone a ...
05/25/2026

Today we remember and honor the brave men and women who made the ultimate sacrifice for our country. Wishing everyone a safe and meaningful Memorial Day. 🇺🇸

Address

3020 7th Avenue
Spearfish, SD
57783

Opening Hours

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

Telephone

+16052151571

Website

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