Onestop Heating Cooling Electric LLC

Mountlake Terrace, WA · HVAC contractor

Rating
5.0/5
★★★★★ 5.0
Reviews
20
Rank in Mountlake Terrace
#1
of 49 home service pros
City Percentile
63%
rating percentile
Address
Onestop Heating Cooling Electric LLC, 5422 212th St SW G103, Mountlake Terrace, WA 98043
Phone
(206) 456-7300
Website
www.onestopheating.com

Onestop Heating Cooling Electric LLC is a home service pro located in Mountlake Terrace, WA. It is one of 49 home service pros listed in Mountlake Terrace. Its 5.0-star rating is above the Mountlake Terrace city average of 4.7 stars. Based on combined rating and review volume, it currently ranks first among home service pros in Mountlake Terrace. There are 10 photos associated with this location.

About Onestop Heating Cooling Electric LLC

Onestop Heating Cooling Electric, based in Terrace, WA, proudly serves their community with expert HVAC and electrical services. Locally owned, they are committed to reliable, 24/7 emergency service, ensuring comfort and safety whenever it's needed... More

Customer Reviews

★★★★★ 5.0 Lynda Falcone · Jan 2026

The team (Adam annd Gari helped us) are extremely knowledgeable and walked us through the HAVAC process of what we need and didn’t need and even discussed health benefits which were important to us. If you want the best care, clear communication and trustworthiness this is the company to call. I wish all home care businesses worked this hard to deliver excellent quality and service, as Onestop does. We LOVE our new heating cooling system which I never dreamed we would say! But it’s true. Plus this company will service us if ever needed, day or night. You are in good hands with this team.

★★★★★ 5.0 Randy V. · Nov 2025

The cold season is coming and our furnace was broken, we weren’t sure what to do. A family friend recommended Onestop Heating Cooling Electric LLC. The gentleman that showed up to our door was very respectful and kind spoken. He took off his shoes before he walked into our home, that showed me he respected my home! He was dog friendly as well which was a plus!!! He came in and inspected our furnace, found the issue within minutes and ordered the parts to replace the broken ones. Next day he came back and fixed the issue and we had heat again. I would HIGHLY RECOMMEND this company!

★★★★★ 5.0 Whirlyball Edmonds · Dec 2025

We had such a great experience with One Stop Heating and Cooling for our new HVAC units! We recently had them install a commercial 3-heat pump package unit. Adam, Robyn, and Gram have been so helpful and timely from start to finish. They had the old units down from the roof, the new units up, and everything installed and ready for winter in less than a workday. Robyn was very responsive to all of our calls and emails leading up to the install, so that everything was smooth leading up to the big day, and was quick to answer any questions we had. Adam was there for every step of the way, making sure we were all set with everything we needed, and kept everything on schedule. The new system is working great, and they have been so helpful and professional. Definitely recommend One Stop Heating

★★★★★ 5.0 Carrie Stark · Jun 2025

I live on East Hill in Kent. I needed my HVAC system serviced, so based on the good reviews, I called OneStop Heating Cooling Electric to see if they were available. They were and could even come the next day! Adam, the owner, and his partner, were ON TIME, and very nice. They began on the furnace in the garage immediately. I decided to stay out there for awhile. Adam worked carefully, plus took pictures at every stage. He then stopped to show me a picture of the back of the blower motor. He showed me where it was dripping oil, evidenced by the oil on his hand. He also showed me a picture of a very discolored circuit board. The repairs on my very vintage furnace would have cost about half the cost of a new furnace. Even then, there wouldn't be any warranty on the existing one because

★★★★★ 5.0 Bookkeeping Department · Jan 2026

Onestop heating took care of my home mini split system and my commercial building install that went out. They're are professional and got the job done right. They installed an air handler and heat pump in lynnwood and Edmonds. Very knowledgable company worth every cent

Accessibility & Amenities

✓ Small Business ✓ Online Estimates ✓ Installation Service ✓ Repair Services

Services

HVAC contractor

Top Home Service Pros in Mountlake Terrace

NameRatingReviews
All Climate Heating & Air Conditioning★★★★★ 5.020 reviews
A2Z Appliance Repaire★★★★★ 5.019 reviews
Gutter Kirkland★★★★★ 4.920 reviews
Sunshine Mountlake Terrace Deck Repair★★★★★ 4.920 reviews
Northwest Pro Wash LLC★★★★★ 4.920 reviews
Fischer Plumbing & Drain Cleaning★★★★★ 4.820 reviews
Porter Family Roofing & Construction★★★★★ 4.820 reviews
EcoView Windows & Doors NW★★★★★ 4.820 reviews
Special Painting★★★★★ 5.015 reviews
Gaskins Cleaning Services★★★★★ 4.720 reviews

This listing is informational. Contact the business directly to verify credentials, services, and availability.