Do you actually service Hillsborough, or is that too far from San Ramon?

Hillsborough is a regular stop. The drive from our San Ramon base runs about 35 to 40 minutes on a normal day via 680 and 101. I keep the Comfortmaker platform parts stocked on the truck because they cross with Carrier and Bryant, so most repairs close in a single visit.

Is Comfortmaker a good fit for the ducted systems in older Hillsborough homes?

It depends on what you already have and what the install quote looks like. Comfortmaker sits on the same Carrier platform as Heil and Tempstar, so the controls and components are well-proven and service is fast. For an older home where the ducts are already sized and in good shape, a Comfortmaker furnace or heat pump is a reasonable value choice. If the duct system needs significant work or the home has no ducts at all, I would talk through ductless options at the estimate before steering you toward a ducted replacement.

What does the $75 diagnostic fee cover, and what warranty do I get on the repair?

The $75 covers a full system inspection: I pull fault codes, test the igniter, flame sensor, capacitor, and contactor, measure refrigerant pressures on cooling systems, and confirm the heat exchanger is intact. If you approve the repair on the same trip the diagnostic fee comes off the total. Every repair we complete carries a 1-year warranty on parts and labor. A new system installation carries 10-year parts and 10-year labor, which is longer than the manufacturer default on most Comfortmaker equipment.

COMFORTMAKER · HILLSBOROUGH

Service · All Comfortmaker Models

Comfortmaker Heat Pump, AC & Furnace Repair · Hillsborough, CA

Comfortmaker heat pump, AC, and furnace repair in Hillsborough, where bay-influenced air and estate-sized homes put outdoor units to the test year-round.

$75 diagnostic (waived with repair)
Same or next-day best effort
CSLB #1136642

Call (925) 999-4095

Comfortmaker in Hillsborough

Comfortmaker heating and cooling in Hillsborough.

Hillsborough sits on the mid-Peninsula benchland between the bay and the coastal hills, and most of the housing stock reflects that history. The larger estates and post-war ranches here typically have central ducted systems, and I see a lot of Comfortmaker furnaces and AC condensers paired into those existing duct runs. The climate is mild compared to the inland valleys, but winter nights drop enough to run the furnace hard, and the proximity to the bay means salt-laden air works on condenser coils and cabinet seams over time.

On Comfortmaker equipment the diagnostic process is straightforward because the platform is shared across Carrier, Bryant, Heil, and Tempstar. The control board, inducer assembly, and gas valve are the same family. I pull board fault codes first, check igniter resistance, and test the flame sensor before I even consider removing a part. In a damp coastal-influenced climate I also check the secondary heat exchanger for condensate drainage issues and look at the inducer housing for early corrosion that can trigger pressure switch faults before the inducer motor itself has actually failed.

Bay Area HVAC Service runs diagnostics at $75, which is waived if the repair goes forward the same visit. You get a written quote before I touch anything. I carry EPA Section 608 Universal certification and we operate under CSLB license 1136642. Parts repairs come with a 1-year warranty; a full system replacement carries a 10-year parts and 10-year labor warranty, and at estimate time I confirm what utility or manufacturer rebates are actually paying so the number you see is real.

Common repairs we do

What we close on the truck.

Cracked or failed hot surface igniter. The Comfortmaker furnace fires a silicon nitride igniter on every call for heat, and in systems that see frequent short-cycling the igniter fatigues faster than the rated life. The symptom is a draft inducer that runs, a call light that flashes, and a burner that never lights. I measure resistance across the igniter before condemning it because a cracked element often reads open while a weak one reads in range but fails under load. Replacement is straightforward and the part is stocked because it crosses directly to the Carrier platform.
Flame sensor carboned over and short-cycling. In homes where the furnace runs in short bursts due to an oversized system or a poorly zoned duct layout, the flame sensor builds carbon faster than average. The board proves flame, then drops the gas valve within a few seconds, and the sequence repeats until the board locks out on repeated ignition failures. I clean or replace the sensor, check the microamp draw in the confirmed-on state, and review the run cycle to determine whether system sizing or zoning is contributing to the accelerated fouling.
Condenser capacitor and contactor degradation from coastal air exposure. Hillsborough properties that face toward the bay get more salt-air exposure than the figures on a climate chart suggest. Condenser run capacitors and contactor contact faces corrode faster here, and the symptom pattern is an AC unit that trips the high-pressure limit on warm afternoons or a compressor that hums but does not start. I test capacitor microfarad values against the nameplate rating and inspect the contactor face for pitting. Both are consumable parts and a straightforward repair, but skipping the check on the other component usually brings the unit back in within a season.

Models we service

Comfortmaker product lines.

Gas furnaces (SoftSound and base series)
Heat pumps and AC condensers
Communicating variable-speed systems
Air handlers and coils
Diagnostics, board and igniter repair, warranty work

Pricing and warranty

What it costs. What we stand behind.

$75

Diagnostic visit. Waived when you book the repair with us.
Written

90 days on consumables, 1 year on major parts, 2 years on sealed-system rebuilds. Quoted in writing before work starts.
CSLB

#1136642. Bonded and insured. We file warranty paperwork when applicable.

Nearby cities

Comfortmaker service in neighboring cities.

More cities

Comfortmaker across our service area.

FAQ

Comfortmaker in Hillsborough questions, answered.

Do you actually service Hillsborough, or is that too far from San Ramon?

Hillsborough is a regular stop. The drive from our San Ramon base runs about 35 to 40 minutes on a normal day via 680 and 101. I keep the Comfortmaker platform parts stocked on the truck because they cross with Carrier and Bryant, so most repairs close in a single visit.
Is Comfortmaker a good fit for the ducted systems in older Hillsborough homes?

It depends on what you already have and what the install quote looks like. Comfortmaker sits on the same Carrier platform as Heil and Tempstar, so the controls and components are well-proven and service is fast. For an older home where the ducts are already sized and in good shape, a Comfortmaker furnace or heat pump is a reasonable value choice. If the duct system needs significant work or the home has no ducts at all, I would talk through ductless options at the estimate before steering you toward a ducted replacement.
What does the $75 diagnostic fee cover, and what warranty do I get on the repair?

The $75 covers a full system inspection: I pull fault codes, test the igniter, flame sensor, capacitor, and contactor, measure refrigerant pressures on cooling systems, and confirm the heat exchanger is intact. If you approve the repair on the same trip the diagnostic fee comes off the total. Every repair we complete carries a 1-year warranty on parts and labor. A new system installation carries 10-year parts and 10-year labor, which is longer than the manufacturer default on most Comfortmaker equipment.

Need Comfortmaker service in Hillsborough?

Tell us what is broken. We will quote it.