Hillsborough

Hillsborough is a residential town on the Peninsula, west of San Mateo and Burlingame, about 19.7 miles northwest of our Fremont base. It is known for large homes on wooded, hilly lots, many of them older estates with several heating and cooling systems and a mix of equipment from different renovations.

TrustFix HVAC Repair Service helps Hillsborough homeowners and estate managers with multi-zone systems, heat pump installations, furnace repair, and indoor air quality. On larger properties, we focus on keeping every system documented, maintained, and working together.

HVAC for Large Hillsborough Homes

Big homes often combine older gas furnaces, newer heat pumps, and ductless units added for specific rooms. Each piece may have been installed by a different contractor at a different time. We take inventory, service each system, and identify where comfort or efficiency can be improved.

Older Estates

Historic or older homes may have limited space for ducts. Slim-profile air handlers and ductless units can add comfort while protecting interior finishes.

Renovated and Newer Homes

Renovated homes often use zoned heat pumps and communicating controls. We maintain these and troubleshoot control issues.

Common Service Calls in Hillsborough

• Maintenance across several systems
• Furnace repairs in older estates
• Heat pump conversions during renovations
• Zoning and thermostat troubleshooting
• Filtration and ventilation upgrades

Services Available in Hillsborough

We provide furnace repair and installation, heat pump repair and installation, AC repair and installation, ductless mini-splits, ductwork repair and replacement, thermostat installation, indoor air quality improvements, and multi-system maintenance. For renovations, we work with architects and contractors on the HVAC portion of the plan. After each visit, we leave a simple summary of what we checked on each system and what to watch for next, so the whole property stays easy to manage from one season to the next.

What to Share Before Scheduling

Let us know your address, the number of systems and their locations, and the contact person for access. Gate codes, parking guidance, and notes about household staff or pets help the visit go smoothly. Earlier service records are useful.

Hillsborough FAQ

Can you service multiple systems in one visit?

Yes. We plan enough time to cover each system and note any follow-up work.

Can you add cooling to an older estate?

Yes. Ductless and slim-profile systems add cooling with minimal disruption.

Do you work with architects and contractors?

Yes. We coordinate on HVAC design during renovations.

Why do my zones not respond correctly?

Control boards, dampers, or thermostat settings may be at fault. We test each part.

Are heat pumps a good fit for large homes?

Yes, when properly sized. Many large homes use several heat pumps.

How often should each system be serviced?

Once a year for each system is a good baseline.