From replacing original 1960s Eichler boilers to installing modern high-efficiency systems for new construction, we are Marin's boiler installation specialists. Every job includes a pressure test and full system flush before connecting your new unit.
Marin County, especially Lucas Valley, is home to many Eichler houses with original radiant heating systems. The 60-year-old steel pipes in these homes are often corroded and filled with sediment. We don't just connect a new boiler to old pipes — we pressure-test and flush the entire system first.
System flushing and pressure testing
Marin's water has a high mineral content that builds up inside boiler heat exchangers, reducing efficiency and causing premature failure. We recommend and install systems with robust heat exchangers designed to handle these conditions, and include magnetic filters on every installation.
Magnetic filters included on every install
An oversized boiler short-cycles, wasting fuel and wearing out components. An undersized one runs constantly and never keeps up. We perform a full heat load calculation based on your home's actual square footage, insulation, and window area — not guesswork.
Full heat load calculation performed
For Eichler homes, we start with a pressure test of the in-slab piping. For all homes, we perform a heat load calculation to ensure your new boiler is sized correctly.
We thoroughly flush all existing radiant lines to remove decades of sludge and debris. This step is vital to protect the new boiler's heat exchanger from immediate damage.
We install the new boiler along with all necessary pumps, valves, expansion tanks, and controls — ensuring the entire system is set up for optimal performance in Marin's environment.
We fire up the new boiler, test performance, and walk you through its operation. We don't leave until you're confident in your new system.
Ideal for most Marin homes — combi boilers provide both space heating and domestic hot water in one compact unit. Perfect for Eichler homes and single-family residences.
For larger homes with radiant systems and multiple bathrooms, a system boiler with a storage tank offers higher capacity and faster hot water recovery.
We install Lochinvar, Navien, Triangle Tube, and other premium brands. In Marin's hard water environment, the quality of the heat exchanger is not a place to compromise.
Whether you have an aging Eichler system or are building a new custom home, we can design a high-efficiency boiler system for you. Contact us for a free, no-obligation estimate.
Serving Novato & All of Marin County • Licensed & Insured • 20+ Years Experience
