Boilers & Hydronic Heating

We design, install and service Hot-Water Boilers and Hydronic Heating Systems for businesses across Sonoma and Napa counties.

Free On-Site Second Opinion
Two Raypak Boilers with a Pump, copper Piping and a hot-water Storage Tank

Boiler Repair

We repair Boilers that won’t fire, lock out on ignition or low-water faults, leak, or stop heating Tanks and hot water, including Boilers installed by others.

Common repairs include Igniters and Flame Sensors, gas valves, Control Boards, header gaskets, Pump Seals and three-way Valves.

Boiler brands we commonly service include Lochinvar, Raypak and RBI, plus most other brands.

Boiler Maintenance

Maintenance includes checks of combustion, safety Controls, Pumps and Valves. The visit schedule depends on the equipment and use, and is set in your Maintenance & Service Agreement.

Installation & Hot Water Systems

We design and install Hot-Water Boilers, Hydronic Heating, Tank heating and production hot water, sized to your heating load and existing Piping.

Boiler with copper Piping, Pumps and a red expansion tank

Boiler Service Calls

School Boiler Pump Noise

Problem: A Boiler Pump was making noise.

Repair: The Pumps were running normally. We traced the noise to a chattering Relay in a Boiler Control Panel, replaced the Relay and tested it. We also serviced both heating Boilers and checked their safety Controls.

Verified outcome: Both heating Boilers serviced and ready for winter.

Hotel Hot Water Pump Leaking

Problem: The Pump Seal on a domestic Hot-Water Boiler was leaking.

Repair: We isolated the Boiler, removed the Pump assembly, replaced the Seal, reassembled the Pump and tested it.

Verified outcome: Pump leak-free and back online.

Common Questions

How often should a commercial Boiler be serviced?

It depends on the equipment and how hard it runs. Most commercial Boilers need 2 to 4 visits a year, and we set the schedule in your Maintenance & Service Agreement.

What is included in commercial Boiler maintenance?

It covers a combustion check and burner adjustment, the Igniter and Flame Sensor, venting, the Heat Exchanger, water condition and leaks, Pumps and Valves, and the safety Controls such as the low-water cutoff, high limit and relief valve.

Why is our commercial Boiler not producing heat?

Common causes are an ignition fault or lockout, a low-water cutoff, a gas valve or Control Board problem, or no circulation from a failed Pump, air in the system or a closed Valve. The fault code and operating readings tell us which.

Why does our commercial Boiler keep short cycling?

It can be a Boiler that is too large for the load, control settings with too little difference between on and off, low flow, or a bad temperature sensor. We check demand, temperatures and flow before changing settings.

What are the signs of a failing Circulation Pump?

Watch for noise, a leaking seal, a hot or tripping motor, or areas that stop getting heat. Air in the system and closed or stuck Valves cause the same symptoms, so we check those before replacing the Pump.

Why isn’t our commercial Water Heater supplying enough hot water?

Demand may be larger than the Tank’s storage and recovery, or there may be a failed burner or element, scale buildup, a mixing Valve set wrong or a failed recirculation Pump. We compare your demand with what the equipment delivers.

Request a Service or Quote

We’ll follow up to confirm the details and schedule a visit.

Equipment down or production affected?

After-hours service is for Maintenance & Service Agreement customers. Online requests are reviewed during office hours.

(707) 544-1277

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