Home / Services / Hydronic heating
Radiant · Baseboard · Boilers · Sonoma County
Hydronic heating service — even, efficient warmth from water, not forced air.
Hydronic systems heat your home with hot water — through radiant floors, baseboards, or radiators — for quiet, even, comfortable warmth. We service, repair, replace, and tune up the equipment that runs them across Sonoma County — boilers, pumps, valves, manifolds, and zones. (We keep existing radiant and baseboard systems running; we don’t install new radiant floor systems.)

often available
Signs your hydronic system needs attention
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What we work on
From a single cold zone to a full equipment replacement, we keep your existing hydronic heat running quiet and even.
Radiant floor heat
- Manifold & loop service
- Leak diagnosis & repair
Baseboard & radiators
- Hydronic baseboard service
- Radiator repair & balancing
- Radiator & valve replacement
Boiler & controls
- Boiler repair & replacement
- Circulator pumps & valves
- Thermostats & zone controls
Everything we do
Hydronic heating, end to end
Service & repair
Cold zones, air in the lines, circulator pumps, expansion tanks, leaks, and control problems — diagnosed and fixed so your heat is even again.
Replacement & tune-ups
Boiler and component replacement, circulator pump and valve swaps, radiator and baseboard replacement, and annual tune-ups — keeping your existing system efficient and reliable. (We service and replace equipment; we don’t install new radiant floor systems.)
How it works
From cold zone to even warmth
1
We diagnose the system
We find why it’s not heating evenly — air, pump, boiler, or controls.
2
Fixed price first
One price before we start — no hourly clock.
3
Tuned & tested
We repair or replace, purge the air, balance the zones, and confirm even, steady heat.
4
Backed in writing
Every job is backed by full warranties — plus our Make-It-Right Guarantee on workmanship.

Even, efficient heat
Quiet, even warmth — tuned to your home.
Hydronic heat is comfortable and efficient when it’s set up and maintained right. We diagnose the real cause, balance your zones, and get the work right — 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.
- Whole-system diagnosis, not guesswork
- Zones balanced for even heat
- Serviced and repaired to code
- Boiler-to-loop expertise
- Licensed — CA C-36 #890196
Reviews
Heating work, in our neighbors’ words
★★★★★
“They always do a great job for me. Quick response time, and they do the work right the first time.”
SC
★★★★★
“I’ve worked with Simeone for years — their plumbers, office, and ownership are responsive and always make us a priority. Wouldn’t use anyone else!”
DG
★★★★★
“Jacob showed up at the start of the window and did a great job diagnosing the problem. The estimate was exactly what I was charged — no upsell, no pressure.”
RH
Good to know
Hydronic heating questions, answered
What is hydronic heating?
Heating your home with hot water — through radiant floors, baseboards, or radiators — for quiet, even warmth instead of forced air.
My system has cold spots — can you fix it?
Usually yes. Cold spots are often trapped air or a struggling circulator pump. We diagnose and correct it.
Do you install new radiant floor systems?
No — we don’t install new radiant floor systems. But we service, repair, and replace the boilers, pumps, valves, and controls that run existing radiant and baseboard heat, and keep them tuned up.
Do you service the boiler too?
Yes — we service, repair, and replace the boiler and its controls, along with the rest of the hydronic system.
Cold spots or no heat? Let’s get it running right.
Same-day appointments often available across Sonoma County.
