
Honest Heating & Cooling
You Can Count On
Family-owned heating and cooling specialists proudly serving Tooele County with honest recommendations, quality workmanship, and dependable service.
Why Choose Macdonald HVAC
Local service. Honest recommendations. Quality workmanship.

Family Owned
We’re a local, family-owned HVAC company that believes in honest recommendations, quality workmanship, and treating every customer like a neighbor.

Service, Repair, Installation
From emergency AC repairs to complete system replacements and mini-splits, we’re here to keep your home comfortable year-round.

Licensed & Insured
Professional, dependable HVAC service backed by the experience and credentials you can trust.

Welcome to
Macdonald HVAC
Family-Owned HVAC Service You Can Trust
Macdonald HVAC provides honest heating and cooling service for homeowners and small businesses across Tooele County. We help with AC repair, furnace service, mini splits, maintenance, and system replacements.
We believe in clear communication, quality workmanship, and recommendations that make sense for your home — not high-pressure sales.
“Dallin put in a new AC system in my rental property. Very happy with the price and service. Has also recharged and serviced my personal AC.”

Matt Luker
/
Matthew’s Plumbing Service, Inc.
★ ★ ★ ★ ★

❄️ Air Conditioning
Repairs • Tune-Ups • Installation

🔥 Heating
Furnaces • Heat Pumps • Repairs

🏠 Mini Splits
Efficient comfort for any room

🛠 Maintenance
Seasonal tune-ups and service plans
Keeping Utah Comfortable
One Home at a Time
At Macdonald HVAC, we’re proud to be a family-owned company serving Tooele and Salt Lake Counties. Whether you need a repair, replacement, mini split, or seasonal maintenance, we’re committed to honest recommendations, quality workmanship, and dependable service.




“Excellent Quality”
“Dallin changed a line set on one of my ac units today and he is a very professional and honest guy. The price he quoted me for the work was very reasonable compared to other quotes I got for the job and the quality of the work was excellent.”
★ ★ ★ ★ ★
Alex Romkey
“Outstanding Job “
“Dallin did an outstanding job getting my furnace taken care of. I was so glad he was available on a Sunday. Very friendly and answered all my questions. I highly recommend Macdonald HVAC.”
★ ★ ★ ★ ★
Etta Vario
“Affordable Price”
“Dallin showed up the same day I called him when my ac went out, hottest time of the year, and fixed it the same day while charging a very reasonable, affordable price. If I ever have any problems I know exactly who I’m calling. You should too. Very courteous, and knowledgeable, quick, and most of all, all around honest company! Can’t say enough good things about this company! I never give reviews on anything but Dallin helped me out for real!”
★ ★ ★ ★ ★
TheCrowHawk
Do you only repair HVAC systems, or do you also install new equipment?
We do both. Whether you need a quick repair, seasonal maintenance, a complete furnace or air conditioner replacement, or a new mini split installation, we’ll recommend the option that makes the most sense for your home and budget—without high-pressure sales.
Can you replace or upgrade my thermostat?
Absolutely! We install and replace standard programmable thermostats as well as smart thermostats like Nest, ecobee, Honeywell, and other popular brands. If you’re unsure which thermostat is right for your home, we’re happy to help you choose one.
How do I know if my HVAC system should be repaired or replaced?
It depends on the age of your system, the cost of repairs, and its overall condition. We’ll always explain your options honestly. If a repair is the better value, we’ll tell you. If replacement makes more financial sense in the long run, we’ll explain why so you can make an informed decision.
What forms of payment do you accept?
We make paying as convenient as possible. We accept:
- ACH bank transfers
- All major credit and debit cards
- Financing through Affirm with Buy Now, Pay Later options for qualifying purchases
Invoices are sent electronically through QuickBooks, making it easy to review and pay online securely.
How often should I have my heating and air conditioning system serviced?
We recommend professional maintenance twice a year—once in the spring for your air conditioner and once in the fall for your heating system. Regular maintenance helps improve efficiency, reduce unexpected breakdowns, and extend the life of your equipment.
What areas do you serve?
Macdonald HVAC proudly serves homeowners and small businesses throughout Tooele County and surrounding communities, including Tooele, Grantsville, Stansbury Park, Erda, Lake Point, Rush Valley, and parts of Salt Lake County. If you’re unsure whether you’re in our service area, give us a call, we’re happy to help.
