Seasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
HVAC Company in Hillsborough, CA
Dalton Heating & Air is the HVAC company Hillsborough homeowners call when a system fails and they don’t want a second visit to fix the first visit’s work. Hillsborough is a different job site than the flatlands: large estate homes, mature landscaping, microclimates that shift between neighborhoods, and utility corridors that don’t forgive sloppy installs. This page is the Hillsborough overview. For pricing and detail on specific jobs, use the service links below, or call (361) 306-9515 and a live person answers.
Why Hillsborough Homes Are Different
Hillsborough’s housing stock runs large. A 4,000-square-foot home here is a normal job, and many are bigger. That means two things for HVAC work: the equipment is often multi-zone, and the ductwork is longer than what a standard suburban system was designed to push. We see homes off Crystal Springs Road, along Ralston Avenue, and in the neighborhoods east of Skyline Boulevard where a heat pump’s performance can change noticeably between the ridge and the valley floor. Hillsborough’s summer marine layer keeps afternoons cooler than the East Bay, but when the fog burns off, a western exposure can still push a working AC system hard.
Hillsborough’s tree canopy is another factor. Mature oaks and eucalyptus drop debris that collects on condenser coils faster than homeowners expect. A system in a clear open yard in Millbrae runs cleaner than one tucked under Hillsborough’s tree line. The terrain also matters. Some equipment pads sit on sloped lots where drainage, vibration isolation, and leveling are not optional extras. On furnace calls, we regularly find crawlspaces with moisture levels that accelerate rust on older sheet-metal ductwork. None of this is exotic. It just means a Hillsborough job takes longer to do right, and a technician who treats it like a tract-home call will miss something.
Hillsborough has its own building department, and permit requirements here are not a formality. For equipment change-outs, the scope of work matters more than in neighboring cities. We handle the permitting paperwork as part of the job. If a permit is required, it gets pulled before the work starts, not after the inspector asks.
Our Main Hillsborough Services
Most Hillsborough calls we take fall into two categories: the AC is running but not cooling, or the furnace won’t start on the first cold morning. Below are the three services that have their own dedicated Hillsborough pages, each with full pricing and specifics.
AC Repair in Hillsborough
Hillsborough homes tend to run multiple AC zones, and when one zone stops cooling, the cause is often a failing zone damper or a refrigerant leak in a line set that runs a long distance through a finished basement or crawlspace. Those are not five-minute diagnoses. Our technicians check the full circuit, not just the outdoor unit. Evaporator coils under Hillsborough’s humidity loads can ice over quickly when airflow drops, and a frozen coil is often mistaken for a low refrigerant charge. We test before we quote, and the price is in writing before any work starts. Read the full breakdown on our AC Repair in Hillsborough page.

Heat Pump Installation in Hillsborough
A heat pump install in Hillsborough usually replaces an older gas furnace and air conditioner pair, and the job is sized to the home’s actual envelope, not a rule of thumb. Load calculations here matter because the temperature spread between Hillsborough’s cool mornings and warm afternoons is wider than in San Francisco proper. We quote heat pump jobs with a written fixed price that includes the equipment, the electrical work, and the permit. No price shift on install day. Details and brand options are on the Heat Pump Installation in Hillsborough page.

Furnace Repair in Hillsborough
The first cold snap in Hillsborough brings a cluster of no-heat calls, and the failures tend to follow a pattern: ignition systems that have sat unused for six months, thermocouples that have seen five years of Hillsborough’s damp crawlspaces, and blower motors that were noisy last spring but ignored. If your furnace is blowing cold air or short-cycling, the fix is usually a component, not a full replacement. Every repair carries our written one-year guarantee. See common failure points and prices on the Furnace Repair in Hillsborough page.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Hillsborough
We’re factory-trained on nine major residential brands, including Rheem, York, Daikin, and Bryant. That means the replacement parts we install on Hillsborough jobs are the right spec for the system, not a universal fit. Our brands page lists full coverage. Most common parts are stocked on the truck, so a first-visit fix is normal.
Pricing for HVAC Company in Hillsborough, CA
| Service | Typical range in Hillsborough |
|---|---|
| AC Repair | $150 – $650 |
| AC Diagnostic | $80 – $200 |
| AC Installation | $3,500 – $7,500 |
| Furnace Repair | $150 – $700 |
| Furnace Diagnostic | $80 – $200 |
| Tune-Up | $80 – $200 |
What pushes a Hillsborough repair toward the top of that range: multi-zone systems, long line sets, crawlspace access, and equipment that needs a factory-specific part rather than a universal component. The price is written before we touch anything. That’s The Garrison Standard, and it’s not a courtesy we extend on some jobs. It’s every job.
Neighborhoods We Serve in Hillsborough
We work across all of Hillsborough, from the estates east of Skyline Boulevard to the streets along Ralston Avenue and the neighborhoods near Crystal Springs Road. Hillsborough is compact enough that our crews reach most addresses within an hour of dispatch when the call comes from our Bay Area office.
- Skyline Boulevard corridor
- Ralston Avenue area
- Crystal Springs Road neighborhoods
- Hillsborough Park surrounding streets
- Burlingame Hills border area
Service Area – Cities Near Hillsborough
Dalton Heating & Air serves Hillsborough and the surrounding communities through the Bay Area dispatch office. If you’re in a neighboring city, we also cover homes across the region, including San Francisco, CA, San Jose, CA, Los Angeles, CA, and San Diego, CA. Each of those pages covers what’s specific to that city’s housing and climate.
Serving Hillsborough, CA - Our Local Coverage Area
We’re based in the Hillsborough area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About HVAC Company in Hillsborough
Most Hillsborough calls are reached within an hour of dispatch. Our scheduling is coordinated from the San Francisco Bay Area office, and crews are sent into Hillsborough from the nearest available location. True emergencies, like a furnace out on a cold night, get moved to the front of the queue. Call (361) 306-9515 and a live person answers 24/7.
Hillsborough’s building department requires permits for most equipment change-outs and new installations. The trigger is the scope of work: replacing an entire system usually requires a permit, while swapping a failed capacitor does not. We pull permits when needed and handle the paperwork. The permit cost is itemized in your written quote, not added at the end.
Both. We schedule tune-ups and planned replacement work for a set date and time window, and the crew arrives inside that window. For equipment that has failed, we treat it as a priority and work it into the schedule the same day in nearly every Hillsborough case. Call (361) 306-9515, tell us what the system is doing, and we’ll give you a real arrival window.
If you’re in Hillsborough and your heating or cooling isn’t doing its job, call Dalton Heating & Air at (361) 306-9515. A person answers. You’ll get a written price before any work starts, a written guarantee on every repair, and a technician who treats your home the way Hillsborough’s terrain and building stock demand. Marco Benitez and the Dalton team stand behind every job for a full year.
What happens when you call
- 1A real person answersNo phone trees - talk to a local hvac pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Hillsborough Customers Say
"Blower motor died on the coldest night. They had the part on the truck and had us warm again the same day."
- Sandy G."Changed the filter size and added a better filter rack. Simple and useful advice."
- Rhonda C."Honest, direct people. Told me what the furnace needed and nothing more, and the bill matched."
- Eliza S.







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