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TRUSTED BY SUMAS, WA HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon35
    Verified heating and air conditioning services reviews

Verified Reviews for Heating And Air Conditioning Service pros in Sumas, WA

*The Angi rating for Heating And Air Conditioning Service companies in Sumas, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Sumas, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

Last update on January 14, 2026

Find Heating and air conditioning pros in Sumas

Avatar for Air Plus
Air Plus
4.6(
50
)

Serving Sumas, WA and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"Milo, the HVAC technician who serviced our Furnace and cleaned and serviced our gas fireplace, was extremely professional, personable, on time and did and outstanding job. The price was reasonable as well. Great job, Air Plus! Milo is truly a professional."
Keep your furnace tip top
Electrical/motor, and components inspection
Dirty burner
Clean burner
Clogged filter

+19

Response time1 day
2 neighbors recently requested a quote
Recommended by82%of homeowners
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Avatar for Four Seasons Heating and Cooling, LLC
Four Seasons Heating and Cooling, LLC
4.7(
69
)

Serving Sumas, WA and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"He tried the easy and inexpensive repair first and it worked. He also gave me estimates for more extensive repairs should the future require."
Response time9 hrs
5 neighbors recently requested a quote
Recommended by98%of homeowners
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Avatar for West Mechanical, Inc.
West Mechanical, Inc.
4.3(
118
)

Serving Sumas, WA and surrounding areas

Approved

In business since 1976

Free estimates

Emergency services offered

"Hired West Mechanical to install a bathroom exhaust fan and light fixtures. Exhaust fan was left with duct disconnected and wiring exposed. Called Customer Service multiple times over 3-week period to get an estimate to reconnect the duct and address the wiring, still unresolved with open permit. UPDATE: I received a call from one of the company owners when he was made aware of the issue. He apologized for what I experienced and said it was very atypical for the company. He arranged to have an electrician complete the work the next day. The work included installation of a new duct transition that was not in the original scope, which was done at no charge. West Mechanical also sent a Supervisor the day after the work was completed to verify that the work was done to my satisfaction. Although I was unsatisfied earlier, I recognize that not every job will go as planned and I have been very impressed by how West Mechanical has responded. I would not hesitate to use them in the future."
Project
Project
Project
Project
Project

+5

Response time1 day
100 neighbors recently requested a quote
Recommended by91%of homeowners
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Avatar for Barron Heating and Air Conditioning, Inc.
Barron Heating and Air Conditioning, Inc.
4.8(
2
)

Serving Sumas, WA and surrounding areas

Approved

In business since 1972

Free estimates

Emergency services offered

Barron is a four-generation family business that has been serving the home comfort needs of Northwest Washington since 1972. While HVAC has been the heart of our company, today we are so much more. Barron Heating, AC Electrical and Plumbing has evolved into a WholeHome service company, taking a beyond-the-box approach to your home or business's most important systems. Our leading home and building performance experts provide the expertise for everything related to HVAC, plumbing, electrical, solar, fireplaces, indoor air quality, and more as we stand by our Mission: Improving Lives

Daikin Furnace
Daikin FIT Heat Pump
Free Estimates
Smart Thermostat
Lennox

+1

13 neighbors recently requested a quote
Recommended by50%of homeowners
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Avatar for Tekton Northwest LLC
Tekton Northwest LLC
5.0(
3
)

Serving Sumas, WA and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"The Tekton team takes time to understand and recommend the right solution. Their timeliness and cost are good and fair. I have hired them 4 times now, and the work has been spot on everytime."
My jobs
My jobs
My jobs
My jobs
My jobs

+6

Response time8 hrs
Response rate100%
24 neighbors recently requested a quote
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Avatar for Tripped Electric
Tripped Electric
5.0(
3
)

Serving Sumas, WA and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

"I am extremely pleased with my services from Tripped Electric. From working with their administrative staff (Tessa) on scheduling, to the 4 electricians who worked at my home (Jacob, Skyler, Marcus, and Justin) -- this business could not be better at what they do or more professional. I would 100% work with Tripped again for any of my electrical needs."
Additional Photos
17 neighbors recently requested a quote
Recommended by66%of homeowners
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Avatar for Barron Heating and Air Conditioning, Inc.
Barron Heating and Air Conditioning, Inc.
4.5(
1
)

Serving Sumas, WA and surrounding areas

Approved

In business since 1972

Free estimates

Emergency services offered

Barron is a four-generation family business that has been serving the home comfort needs of Northwest Washington since 1972. While HVAC has been the heart of our company, today we are so much more. Barron Heating, AC Electrical and Plumbing has evolved into a WholeHome service company, taking a beyond-the-box approach to your home or business's most important systems. Our leading home and building performance experts provide the expertise for everything related to HVAC, plumbing, electrical, solar, fireplaces, indoor air quality, and more as we stand by our Mission: Improving Lives

5 Star Service
Daikin Fit Heat Pump Maintenance
Filter Change Out
Response time5 days
2 neighbors recently requested a quote
Recommended by100%of homeowners
Request Quote
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Showing 1-10 of 61
Heating and Air Conditioning questions, answered by experts

The standard HVAC warranty is around five years. Still, many brands offer an extension to 10 years if you register the product within a specific timeframe, typically 60 to 90 days post-purchase or HVAC installation. Over the past decade, warranty periods have substantially increased, shifting from 3-5 years in the 90s to the now-prevalent 10+ year warranties. Both warranty types cover parts failing due to manufacturer defects, incurring no additional costs. Some manufacturers provide extended warranties surpassing the usual 15- to 20-year window, though these often involve extra fees. 

During the summer, it’s best to set your AC to 78 degrees when you’re home and awake, according to the Department of Energy (DOE). For better energy efficiency, raise the temperature slightly to 85 degrees while you’re out of the house. The National Sleep Foundation advises lowering your thermostat to between 60 and 67 degrees when you’re asleep.

Some HVAC systems tend to use R410A refrigerant, although if you have an older model it may be using R22. R22 is banned due to its harmful environmental and health impacts, and it is a sign that your AC unit is old enough to consider a replacement and the significant efficiency gains that could come with it.

Yes, mini-split systems are generally less expensive to run than central air conditioners and are significantly more energy-efficient. Because mini-splits do not rely on ductwork, they avoid the energy loss associated with ducted systems, allowing cooled or heated air to reach its destination more efficiently. Additionally, they offer zoned control, meaning you can run units in individual rooms and turn them off in unoccupied areas. This capability can lead to energy savings of about 30% compared to a central air system, resulting in a lower monthly energy bill.

A dual evaporator coil is a specific design that allows the AC system to cool different compartments at different levels. It’s usually seen in refrigerators and similar appliances, but not in whole-house air conditioning systems. Talk with your AC technician about the best uses for a dual evaporator coil.

The Sumas, WA homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.

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