
Serving Seattle, WA and surrounding areas
Approved
In business since 1989
Free estimates
Emergency services offered
"AAA installed my furnace years ago and now I have annual service with them. Service people are always timely and pleasant."






Serving Seattle, WA and surrounding areas
Approved
In business since 1989
Free estimates
Emergency services offered
"AAA installed my furnace years ago and now I have annual service with them. Service people are always timely and pleasant."





Serving Seattle, WA and surrounding areas
Approved
In business since 1986
Free estimates
Emergency services offered
"They do a yearly inspection and filter cleaning of electric furnace and heat pump.n"





+46

Serving Seattle, WA and surrounding areas
Approved
In business since 1994
Free estimates
Emergency services offered
"Mark and his guys helped us install a new AC last summer. They arrived on time and did a great job! So when I was looking for someone to do the maintenance of our furnace, I called them. Todd went above and beyond my expectations. He finished the job and even helped fix my hinge. Both Mark and Todd strike me as very genuine people. And I would definitely hire them again!"



Serving Seattle, WA and surrounding areas
Approved
In business since 1921
Emergency services offered
Warranties offered
"Worked with Greenwood Heating and Air on a furnace replacement and only have excellent things to say about the company and team. Customer service, pricing, timeliness, thoroughness, and friendliness were top notch. Contacted them initially for an inspection of our 28-year old furnace. The technician Frej was prompt, thorough, and courteous, explaining in detail the issues we might face with this still working but old units. Based on the findings we reached out for a quote on a system replacement. Lori took diligent care in listening to our concerns and hopes for a new system, recommending systems that might work for our household. She was always available for follow-up questions, providing answers that really helped us decide on getting a new system (Trane XC80 furnace with air scrubber) via Greenwood H+A. Prices were fair, on par with expectations and quotes from other businesses. On the day of the install, the team at Greenwood H+A, including Jake, Jordan, and Jason were very flexible, coordinating with the roofing company we had hired to take down our chimney and replace with a vent, to get the project moving on time. They were all very communicative, which we appreciated, and gave us regular updates on the progress. They finished what seemed like a big job within the day, despite the install occurring in our cramped crawl space. Our house is now toasty warm again with a great new furnace and all the bells and whistles. Would definitely recommend them for similar job, including for custom requirements as was our case with the roof. Thanks!"





Serving Seattle, WA and surrounding areas
Approved
In business since 1975
Free estimates
Emergency services offered
"Great. I wanted to replace my oil furnace with a system that does both heating and cooling. They came by, did measurements, and presented some options. I chose the Mitsubishi mini split system because I have a large house and don't need to heat or cool all of it all the time. They installed in a day. Very easy, very boring, I also had them replace the water heater."





+9

Serving Seattle, WA and surrounding areas
Approved
In business since 2011
Free estimates
Emergency services offered
"Allred is THE best. I had mini-split AC/heat installed almost a year ago. I love it and it's saving me significant money over using my central heating system. And no more hassle with portable air conditioners. I should have done this years ago. Even better is the 5 star customer service. Last week I had difficulty turning on the AC for the first time since last summer. I urgently called David on a Sunday. He immediately dove in to get me scheduled. Sebastian called me before making an on-site visit. Patiently walked me through a simple troubleshoot and shazaam! I turned right on. A+++ to both of them."





+9

Serving Seattle, WA and surrounding areas
Approved
In business since 1997
Free estimates
Warranties offered
"Our previous gas furnace was only 14 years old (it was a replacement itself, but a generic "contractor's model," not a common name brand and probably inefficient). The gas controller died, which would have cost $700 to replace -- and we'd still have an old, inefficient furnace. At best, the old 100,000 BTU furnace might have been 80% efficient, and probably worse.
I called around and got a quote for a replacement from a large heating company in Woodinville, and a different brand -- but they insisted that we'd have to install a vehicle post for protection of the heater in the garage, in order to pass an inspection. They also did not explain how they would install the PVC exhaust pipe in our garage. The 95% efficient furnaces require a PVC exhaust pipe, which cannot attach to the existing metal exhaust that goes through the roof and that also handles exhaust from the water heater. Another large company in Bellevue wanted to do a 3-hour test of our entire house, to first determine what size heater to get. With that, and other reviews on Angie's List, I figured they would be more expensive, so I passed on that. After a quick look at our existing system, the other heating companies I talked with said that the same BTU output of a new efficient heater, combined with a variable or two-speed fan, would be the right size.
So I called Bassett Home Heating. John, the owner, came out the next day (a Friday) and offered two recommendations -- one for an 80% furnace (which could attach to our existing metal exhaust pipe), and one for a 95%. He explained how the PVC pipe could be routed along the top of the garage, and said nothing about having to install a vehicle post. I also liked the idea of a small family-run company, where you know who you will be dealing with.
The only potential downside was a scheduling delay, since we had no working heater. Because we have a wood stove that we have previously relied on for heat during storm outages, I decided to go with Bassett -- and am very glad I did. They are normally scheduled two or three weeks ahead at this time of year, but were able to rearrange their schedule and come out for the installation the following Thursday. We got the 95% efficient furnace. The PVC exhaust pipe looks and works fine, and they also installed a small pump and outlet tubing for the moisture that the furnace creates.
They called a couple of days ahead, and showed up right at 7:30 a.m. on the agreed day. John, his son, and another helper all worked on the installation, and did a great job. Complete installation took them less than 2-½ hours, and they showed how the new thermostat works -- it's easier than the old one, even though there are more features. I am extremely pleased with our new heating system; it heats the house much more evenly than the old system, and we aren't losing 15% or more of the fuel as waste.
"


Serving Seattle, WA and surrounding areas
Approved
Super Service Award Winner
In business since 2018
Free estimates
Emergency services offered
"I got prompt service when I called to have my furnace serviced & to inquire about completing installation of air conditioning. I found out my electrostatic filters were not working, so I will use disposable air filters until I need to replace my furnace. At that time, I will probably go with a heat pump system. Eli is a very nice young man who explained everything to us to help us make decisions regarding our heat and air filtering system. Would hire again!"





+11

Serving Seattle, WA and surrounding areas
Approved
In business since 1954
Emergency services offered
Warranties offered
"This was an excellent customer service experience. I selected Day & Nite Plumbing & Heating in Lynnwood, WA on the strength of Angie's List reviews that describe actual furnace repair work rather than other companies that seem more focused on doing furnace replacements. (Day & Nite do replacements, of course, but the reviews cited a fair number of repairs as well.) Although my gas furnace (a Carrier Weathermaster 800) is about 20 years old, my circumstances didn't allow replacement. When I contacted Shondra in their office about available appointments they were booking several days out, but were able to move it up a day and a half which was very appreciated given the cold nights. Tyler was the HVAC-R Technician sent for my appointment and he was amazing - both personable and knowledgeable, he listened to my concerns and quickly diagnosed and fixed the unit. He also understood that I am someone who likes to know details on what is being done and why – not too much detail, but enough so I felt informed which reassured me. Tyler’s great customer service and positive attitude, on top of his knowledge and experience with the technology impressed me so much I signed up with Day & Nite for their annual furnace maintenance plan next winter and will happily refer my friends and family for their furnace needs. I have yet to experience the Day & Nite plumbing services, but on the strength of my experience with Day and Nite and support by Tyler, I will give them a call when that need arises. (FYI: The approximate service cost of $600 included the ignitor part less a 10% customer discount for signing up for the maintenance plan, the trip charge and that for next winter’s maintenance trip, plus tax.)"





Serving Seattle, WA and surrounding areas
Approved
In business since 2002
Free estimates
Emergency services offered
"The professional technicians at AirPros were responsive and explained everything regarding the status of my furnace. I am pleased with their service and value...I would highly recommend them in the future."



Converting from an oil furnace to an electric furnace isn't a simple swap—the oil system needs to be completely removed before installing the electric furnace. You'll need a full electric system installation, but you might be able to reuse existing ductwork if it's up to current safety standards. You’ll need to budget for a new electric furnace installation, which costs between $1,800 and $6,200, including professional removal, proper disposal, and safe installation of the new system.
Electric furnaces are 100% efficient at converting electricity into heat. However, some of that heat can be lost as it travels through your home's ductwork or escapes through poorly insulated areas. That's why regular duct maintenance and proper home insulation are important to maximize your furnace's efficiency and reduce heat loss, ensuring consistent warmth and lower energy costs.
With proper maintenance, an electric furnace can last anywhere from 20 to 30 years, outlasting the average gas furnace's lifespan of 15 to 20 years. To keep your electric furnace running efficiently, schedule regular cleanings, tighten connections, and have inspections done before winter arrives. With routine maintenance, you’ll ensure consistent, safe heating for years to come.
The size of the electric furnace you need depends on factors like your home's square footage, climate, and insulation quality. As a general guideline, those who live in warmer climates should multiply their square footage by 30 to 35 BTUs, while those in cooler areas should multiply it by 50 to 60 BTUs.
Consulting with an HVAC professional can help you determine the exact size that's right for your home.
An electric furnace works by converting electricity into heat using high-resistance heating elements. A blower then pushes the warm air through your home's ductwork, distributing heat evenly throughout your space. Since there's no combustion involved, electric furnaces eliminate the risks associated with gas furnaces and provide consistent, reliable heating when properly installed.
An electric furnace uses between 40 and 80 kilowatts per day to heat your home. The exact amount it uses depends on factors like your home's size, insulation, and overall energy requirements. Larger homes or those with poor insulation use more energy than smaller, well-insulated spaces. A professional furnace assessment can help confirm the ideal unit size for your needs.
From average costs to expert advice, get all the answers you need to get your job done.

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