Furnace Installation & Replacement in Contra Costa

Most gas furnaces last about 15 to 20 years in the East Bay's mild climate, since they run fewer hours than in colder regions. Signs one is near the end include repeated repairs, rising gas bills, uneven heat, rust and a cracked heat exchanger. Age alone isn't a reason to replace a furnace that runs safely, but it is a good reason to start planning.

Both are allowed today. A new gas furnace can still be installed in the Bay Area until the Air District's zero-NOx rule for new furnaces takes effect on January 1, 2029, unless exemptions change that. A heat pump covers heating and cooling and avoids the question later. If your AC is also old, replacing both with a heat pump often makes sense. We quote both so you can compare.

AFUE is the share of the fuel's energy that becomes heat in your home over a season. An 80% AFUE furnace vents through a metal flue, while a 95% or higher condensing furnace vents through plastic pipe and drains condensate. In Contra Costa's mild winters the higher-efficiency model doesn't always pay back, especially where venting changes are hard. We talk through which fits your home.

Yes. A furnace change-out needs a building permit from your city, or from Contra Costa County for unincorporated areas like Bay Point, Discovery Bay and Byron. Most also need ECC (formerly HERS) verification, which can include a duct leakage test. We pull the permit, schedule the inspection and meet the inspector, so the job is signed off properly.

Usually, yes. Much furnace noise comes from an undersized return, a blower running too fast or ducts that whistle at tight turns. A new furnace with a variable-speed blower ramps up gently, and correcting the return and duct connections during the install takes care of most rumbling and booming. Tell us what you hear, and we will look for the cause during the quote.