
Serving Maple Valley, WA and surrounding areas
Approved
In business since 1989
Free estimates
Emergency services offered
"Excellent service. Checked all of the systems in the furnace."





*The Angi rating for Boiler Installation companies in Maple Valley, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Installation needs.
*The HomeAdvisor rating for Boiler Installation companies in Maple Valley, WA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Installation needs.
Last update on July 31, 2026

Serving Maple Valley, WA and surrounding areas
Approved
In business since 1989
Free estimates
Emergency services offered
"Excellent service. Checked all of the systems in the furnace."





Serving Maple Valley, WA and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"Received 4 quotes. Cummings was the least expensive that I used to bargain two others to. They matched but had install dates of 30 days. Cummings had their electricians and HVAC guys here in 8 days. Installation done in 4 hours. All had good customer service & tech skills."





+1

Serving Maple Valley, WA and surrounding areas
Approved
In business since 1990
Free estimates
Warranties offered
"Jane's replaced my 20-year old Munchkin boiler with a super efficient, modern Rinnai. Everyone was a joy to deal with. Service was excellent. Darian, who scheduled and arranged the replacement, and Greg and Oscar (who did the work) were fantastic. Excellent service, especially since I live on Lopez Island, which is not easy to get to. Competent, good-natured, hard-working, nice folks."



Serving Maple Valley, WA and surrounding areas
Approved (Corporate)
In business since 1993
Free estimates
Emergency services offered
"Very happy with the new HVAC system installed by Black Hills. The installation team were quiet, efficient, and very professional. The new system works great and we are very pleased with it. Highly recommend this company for any HVAC installation or repair."





+12

Serving Maple Valley, WA and surrounding areas
Approved
In business since 2015
Free estimates
Emergency services offered
"I had an excellent experience with Jose Plumbing Excellence Northwest. They first helped me fix a leak, and later replaced my water heater when it went out. Both times, they were able to schedule me right away, which I really appreciated. The team was professional, efficient, and made sure everything was done correctly. Their customer service was great from start to finish, and they made the whole process smooth and stress-free. I highly recommend them for any plumbing needs!"



Serving Maple Valley, WA and surrounding areas
In business since 1977
Free estimates
Emergency services offered
"One afternoon when leaving our local Costco we noticed a booth advertising Lennox air conditioning for the home. After the last 4 years of record summer heat, we decided to begin the process of investigating this solution. The appointment for the estimate went well with the entire process carefully explained and all of our questions answered. So, we decided to pull the trigger and buy the system. To our delight, company had an opening for the installation a week ahead of the original date and things only got better from there. On the day of the install, Isaac and his crew arrived on time and enforce. At one point there were 6 people and three trucks, all tightly coordinated. Everyone was courteous, professional, and fast. In a little over 6 hours the system was completely installed and thoroughly cleaned up. Overall, we could not be happier with this decision and highly recommend this company for anyone considering whole house A/C. Replacing 13 fans and 2 portable air conditioners is an elegant solution."





+1

Serving Maple Valley, WA and surrounding areas
In business since 1957
Free estimates
Emergency services offered
"We'd used them four years ago to replace our windows. They were about 40% the cost of Renewal By Andersen for the same Andersen windows, were professional and courteous throughout the process, and we haven't had a single problem since. So when we wanted to put in a heat pump system for efficient heating and cooling they were high on our list. We got four bids, and once again they were the least expensive, in this case by a 30% margin. They explained our options well, came up with some creative solutions (we're an old house with old vent-work which they bypassed for the ductless pumps but used for a top quality air filter), and did the job quickly and efficiently. They've checked back a couple of times since to make sure everything is ok, which it is, and it's been really nice to heat our bedroom on some cold nights and cool my western facing home office on some sunny afternoons). When the permit inspector asked before they came over who our installer is and I told them, they said "They do really good work." Definitely recommend them to others and in fact already have."





+39

Serving Maple Valley, WA and surrounding areas
In business since 2013
Emergency services offered
Warranties offered
"Great job by Seatown to add two new electrical circuits in my garage. Micah, the Seatown technician was friendly, highly professional and clearly competent. Micah discussed my objectives for the improvements and the advised me on the options and installation apporach. He provided an estimate on the spot and after some discussion we settled on price and the work was scheduled. Seatown kept me informed and work was accomplished on schedule. I am very pleased with the work! Seatown handled all the permitting and scheduled the inspection with the City. Great job!"





+44

Serving Maple Valley, WA and surrounding areas
In business since 2007
Free estimates
Emergency services offered
"We were interviewing several companies to replace our 1950's era heating system and had gotten quotes from several companies when our heating system shut down and refused to light. Phoenix was next on our list and Nick McDanel responded to our plight and was very accommodating in meeting with us immediately that evening. His quote came in below the others we had gotten for the same level of high-efficiency system we wanted and he was able to begin installation in three days. He installed the heater and replaced our 12 year old water heater at the same time at a discounted price. The entire installation was very professional and we feel that he saw to it that all details were dealt with to meet our every concern. We're very happy with the result and appreciative of their attention to detail.
"



Serving Maple Valley, WA and surrounding areas
In business since 2015
Free estimates
Emergency services offered
"They did a great job. I'm very happy with it. It came to a little bit more because they had to add some additional parts and change out the copper piping and that sort of a thing. It came to $1100 all total. They did a fine job, a really good job. The Angie's List special was for a Rheem water heater and they actually put in AO Smith water heater. So I talked to them about that. I said, "Well, I have a Rheem furnace, I would like to have a Rheem water heater." They had already put it in, I hadn't realized it. So I said, "You're supposed to put the Rheem in," and then the installer contacted the owner and they were able to give me a 10% discount or something like that. So they did give me an offset of about $110 or something like that. So that was good, they made it up for it. So I was satisfied with that arrangement. I assume that they're both of equal quality, but I don't know for sure. I settled for the reduction in the price."





+9
From average costs to expert advice, get all the answers you need to get your job done.

The average boiler installation cost depends on size, system type, and other factors. Keep reading to learn the cost of a new boiler in Seattle, WA.

The average boiler installation cost depends on size, system type, and other factors. Keep reading to learn the cost of a new boiler.

Discover the average electric boiler installation cost, key price factors, and ways to save. Get transparent, expert-backed estimates for your project.

Looking for a qualified boiler installation pro? Learn how to find and hire the right professional, from credentials to questions to ask.

Installing a boiler requires care and precaution. Use this checklist to install a boiler safely.

Installing a boiler DIY isn’t recommended without the proper skills and experience. Learn how to safely install a boiler in this guide.