Trusted Home Services Across the Puget Sound Since 1987
Boiler Repair in Seattle
Boiler Repair That Looks Beyond the Heating Unit
When your boiler stops delivering dependable heat, the problem may lie within the unit or elsewhere in the system. Hydronic heating uses heated water to warm your home through radiators, baseboard heaters, or radiant-floor tubing. It also relies on circulator pumps, zone valves, and thermostat controls. No heat, uneven temperatures, leaks, pressure changes, unusual noises, and repeated cycling all call for professional diagnosis.
Don’t repeatedly reset a boiler that loses pressure, leaks, or shows signs of an ignition or combustion problem. If you smell gas or suspect an unsafe condition, leave the area and contact the appropriate utility or emergency service from a safe location.
Request boiler repair in Seattle by calling (425) 610-9839. Our customer service team can arrange your appointment and explain what to expect.
Serving Puget Sound Homeowners Since 1987
Brennan Heating, Air Conditioning, Plumbing, and Electrical has served tens of thousands of customers throughout the Puget Sound region since 1987. Our in-house customer service representatives and on-site technicians prioritize consistent communication, respectful service, and careful treatment of your home.
We guarantee our workmanship. We also hold an A+ rating from the Better Business Bureau and have received the Angie’s List Super Service Award for 13 consecutive years. We bring those service standards to every heating service appointment, from the first conversation through the completed work.
Energy Consultation
Clear Communication & Guaranteed Workmanship
Honesty, integrity, and service shape our approach to home heating work. We explain the problem and proposed service, answer your questions, and treat your home with care and respect. Our knowledgeable technicians work to keep heating and cooling equipment operating smoothly.
Our customer-focused service includes:
- In-house customer service representatives who coordinate appointments and address questions
- On-site technicians who provide consistent, sincere communication
- A workmanship guarantee covering our repair work
- Free energy consultations for homeowners considering broader efficiency improvements
- Flexible financing options subject to approved credit
Our goal is to help you balance comfort, energy efficiency, and household costs. If an assessment reveals that a larger heating solution deserves consideration, we can discuss the available options without treating every boiler problem as a reason to replace the system.
Service That Speaks for Itself
See Why Western Washington Homeowners Love Brennan
-
“Detail-oriented and their technicians spend time teaching you the system. I also can’t believe they also came back the next day to caulk a tiny hole they made. You get quality with Brennan.”- Marcin N.
-
“The install team was great. They were all experienced and really enjoyed their jobs, and it showed. I love our new Carrier 38MURA hvac system already, and it's not even hot out yet.”- Melissa R.
-
“Bryan & Michael arrived early as I requested and worked hard to clean the furnace vents, returns, and ductwork, including the dryer vent. Our daughter had recently used Brennan & recommended the company. I am delighted with the results.”- Janie H.
-
“The service was extremely professional, courteous, respectful, and knowledgeable. We loved Dakota & Brian!”- Lloyd N.
-
“Excellent and efficient service. Brayan Rodriguez and Giovanni did a great job. Brennan will be my go to for services needed”- Diane V.
-
“The services provided by the Brennan staff were outstanding. Sergio & James were on time, completely explained the 5 W's before starting, they were efficient, cleaned up as they worked, explained how each part of the system functioned.”- Steve S.
-
“I had Brennan come today to clean my air ducts. Since this was the first time having it done, it was reassuring to know it’s a pretty simple & fast process, and totally affordable. You're always in good hands with them.”- Sandy M.
-
“Our experience from estimate to installation was outstanding! Their price and quality of installation were a great deal. I highly recommend them for any Water Heater, AC, or Heating needs!”- Douglas D.
Service You Can Rely On. People You Can Trust.
A member of our team will be in touch shortly to confirm your contact details or address questions you may have.
-
Smarter, Safer, & More EfficientFrom high-efficiency HVAC installs to LED lighting upgrades and surge protection, we’re here to improve the way your home feels—and functions—year-round.
-
Award-Winning CareMulti-year Angie’s List Super Service Award winner with an A+ BBB rating, Brennan is Seattle’s trusted partner for top-tier heating, cooling, and electrical services.
-
Integrity Meets InnovationFrom certified energy consultants to licensed electricians, our team brings you forward-thinking solutions backed by time-tested values of honesty, reliability, and expert care.
-
Trusted Since 1987With decades of experience and thousands of satisfied customers, Brennan delivers worry-free heating, cooling, and electrical solutions with service you can count on.
Ways To Save With Brennan
From flexible financing to energy-efficient upgrades—we make comfort more affordable.
-
Flexible FinancingDon’t let budget concerns delay your comfort. We offer trusted financing options to help you move forward with confidence. -
Current SpecialsWhether it’s seasonal savings or limited-time discounts, we’ve always got a way to help you save more.
-
Energy RebatesEligible HVAC upgrades could qualify for big rebates under the Inflation Reduction Act. Let’s help you save while going green.
Boiler Repair Service Across Seattle & Puget Sound
We serve homeowners in Seattle and throughout the Puget Sound region. Our Western Washington coverage extends across communities in King, Snohomish, Pierce, Kitsap, and Mason counties.
Restore Dependable Heat to Your Home
We can assess lost heat, uneven temperatures, unusual boiler noises, leaking water, and pressure changes. You’ll receive a clear explanation of the problem and proposed work before deciding how to proceed.
Our repair work is backed by a workmanship guarantee, along with the clear communication and respectful home care that have guided us since 1987.
Call (425) 610-9839 to request boiler repair from Brennan Heating, Air Conditioning, Plumbing, and Electrical.
Energy Consultation
From food banks to foster care, Brennan is proud to give back to the communities that trust us with their comfort.
