Heating & cooling
AC & HVAC repair in Los Altos.
Furnace, AC, and heat pump service for Los Altos ranch homes and the long duct runs that come with them.
Los Altos is single-story ranch country, big flat lots in 94022 and 94024 with houses that spread out instead of up. That floor plan is easy living and hard ducting. One furnace in a garage or hall closet pushes air through long runs to bedrooms at the far end of the house, so the calls we get here are as much about airflow as equipment: rooms that never cool, returns that were undersized in 1962 and never fixed, ducts crushed under decades of attic traffic.
The equipment splits by neighborhood era. North Los Altos and the blocks near downtown saw heavy rebuilds after 2015, usually with two systems or zoned equipment that mostly needs control-level work and steady maintenance. Country Club and Loyola Corners lean older, with furnaces and condensers from the early 2000s remodel wave now past 20 years and failing in predictable ways.
We run seven days a week out of San Ramon, EPA Section 608 Universal certified, CSLB licensed under #1136642. The diagnostic is $75, credited toward the repair when you book it, and you approve a written itemized quote before any work starts.
Airflow first, equipment second
When a far bedroom in a sprawling ranch never cools, the lazy quote is a bigger condenser. The right move is to measure. We check static pressure, walk the attic runs, and find the crushed flex, the leaking plenum joint, or the return that is half the size the system needs. A new unit pushed through bad ducts works harder, runs louder, and dies sooner, so we fix the air path before we talk tonnage. See AC repair for the cooling side.
On the newer rebuilds near downtown the work is different: zone dampers, thermostats that lost their schedule, and two-system houses where the fault has to be isolated to one side before anyone orders parts.
The early-2000s equipment is aging out
Country Club and Loyola Corners systems from the remodel wave are crossing 20 years, which is where heat exchangers crack, compressors lose windings, and a third repair stops making sense. The Los Altos climate is mild on both ends, which is exactly the profile where a heat pump covers heating and cooling on one system. We lay out the repair price and the replacement price side by side, in writing, and let the numbers decide.
We work with BayREN and PG&E programs plus manufacturer instant rebates, with Silicon Valley Clean Energy as the local generation territory. Amounts move by cycle, so we confirm what is paying at the estimate. Installations carry a 10 year parts and labor warranty.
Common questions, Los Altos.
- One end of my Los Altos house never cools. Do I need a bigger AC?
Usually not. In long single-story ranches the problem is almost always the duct path: crushed flex runs, leaky joints, or an undersized return. We measure static pressure and inspect the attic runs before quoting anything. Fixing the air path is cheaper than a bigger condenser and actually solves the problem.
- My furnace and AC are from the early 2000s. Repair or replace?
At 20-plus years, it depends on the part. An igniter or capacitor is worth fixing. A cracked heat exchanger or failing compressor is not. We give you both numbers in writing, and in this mild climate a heat pump replacement often beats another furnace-plus-AC pairing.
- What does a diagnostic visit cost in Los Altos?
The diagnostic is $75 and it comes off the bill when you book the repair with us. The quote is written and itemized before work begins.
Heating & cooling