Hot Water & Hydronic Boilers · Install & Repair · Sonoma County
Boiler installation & repair — reliable heat and hot water, season after season.
Your boiler runs your heat, your hot water, or both — and when it struggles, the whole house feels it. We service, repair, and replace gas and propane boilers across Sonoma County, and help you choose the right new unit when it’s time.
often available
Signs your boiler needs a look
See your options ↓
Ways we help
We’ll tell you honestly whether a repair gets you there or a replacement is the smarter money.
Repair
- Diagnose noises, leaks & lockouts
- Replace failed parts
- Restore heat & hot water
Service & tune-up
- Annual maintenance
- Efficiency & safety checks
- Head off winter breakdowns
Replacement
- A right-sized new unit
- High-efficiency options
- Installed and tested to code
Everything we do
Boiler work, end to end
Repair & service
Noises, leaks, short-cycling, ignition and pilot problems, circulator and control faults, and annual tune-ups — diagnosed and fixed right.
Replacement & install
Right-sized boiler replacement, high-efficiency upgrades, and new installs for heat and domestic hot water — installed and tested to code.
How it works
From no heat to up and running
1
We diagnose it
We find why the boiler quit — ignition, leak, circulator, or control.
2
Fixed price first
Repair or replace options, each priced before we start.
3
Heat restored
We repair or install, test it under load, and confirm safe, steady operation.
4
Backed in writing
Every job is backed by full warranties — plus our Make-It-Right Guarantee on workmanship.
Heat you can rely on
Done safely, tested, and built to last.
A boiler is a system you depend on in the cold — so we don’t cut corners. We diagnose the real cause, install to code, and test under load, backed by full warranties and our Make-It-Right Guarantee. Family-owned in Sonoma County since 2007. See our Make-It-Right Guarantee for details.
- Gas & propane boiler expertise
- Right-sized, high-efficiency options
- Installed and tested to code
- Honest repair-or-replace advice
- Licensed — CA C-36 #890196
Reviews
Heating work, in our neighbors’ words
★★★★★
“Good, thorough job — we’ve always trusted Simeone Plumbing!”
RP
★★★★★
“Came out the same day as my call. Jacob was polite and efficient, and the price was reasonable for excellent service. I’ll use them for any future work.”
HF
★★★★★
“Very quick and a good job — would use them again.”
JP
Good to know
Boiler questions, answered
Should I repair or replace my boiler?
If it’s a sound unit with a failed part, repair. If it’s old, inefficient, and breaking down often, a replacement usually saves money. We’ll tell you straight.
Do you work on gas and propane boilers?
Yes — we service, repair, and replace both gas and propane boilers.
My boiler is making banging noises — is that serious?
It can be. Banging or “kettling” often means scale or circulation problems. We diagnose it before it gets worse.
Do you do annual boiler maintenance?
Yes — a yearly tune-up keeps it efficient and safe and heads off most winter breakdowns.
No heat or an aging boiler? Let’s get it sorted.
Same-day appointments often available across Sonoma County.