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 Half Moon Bay, CA
Half Moon Bay sits right where the coastal fog meets the coastal range, and that collision shapes every heating and cooling decision a homeowner makes here. Dalton Heating & Air handles the full scope of HVAC work in Half Moon Bay with written pricing before any job starts, a written one-year guarantee on every repair, and technicians who arrive inside the stated window. Call (361) 306-9515 and you’ll reach a live person, day or night.
Why Half Moon Bay Homes Are Different
The marine layer does more than water the artichoke fields. It pushes salt-laced moisture into outdoor condenser units, corrodes coil fins faster than inland climates, and means a furnace that sits idle from April to October can develop its own problems by November. Homes in Half Moon Bay run older than the Bay Area average, and many were built for a climate that no longer matches the summer heat spikes we now see in September and October. Add in the terrain: crews working the hillier streets above downtown, out toward Purissima and the canyons, routinely deal with equipment pad elevations, drainage concerns, and tight crawl spaces where older ductwork has settled. Permitting through San Mateo County applies to larger installations, and some hillside properties carry their own setback and noise requirements. None of this is a surprise to a crew that works the coast regularly, but it does mean the job is different here than it is twenty minutes inland.
Our Main Half Moon Bay Services
Most Half Moon Bay calls fall into two buckets: a system that quit working, and a homeowner planning ahead. These three services cover what we see most often.
AC Repair in Half Moon Bay
Coastal air is hard on condenser coils. We open most AC Repair in Half Moon Bay calls with a full diagnostic, then hand you a written price before any wrench turns. Common fixes here include refrigerant recharge, capacitor and contactor replacement, and condensate drain clearing on systems that have been sitting for months. If the repair doesn’t hold, the guarantee is written for a full year and the second visit is free.

Heat Pump Installation in Half Moon Bay
Mild winters make Half Moon Bay a strong candidate for heat pumps, and a growing number of homes here are making the switch. A Heat Pump Installation in Half Moon Bay starts with a load calculation based on your home’s actual square footage, insulation, and window exposure – not a guess. We size the unit, schedule the install date in writing, and handle rebate paperwork where it applies.

Furnace Repair in Half Moon Bay
Most furnaces here sit dormant for half the year, then get asked to perform on the first genuinely cold night. We see a lot of failed igniters, dirty flame sensors, and blower motor issues in that first cold stretch. Our Furnace Repair in Half Moon Bay work comes with the same terms as everything else: upfront written price, written guarantee, and a free return visit if the repair fails within the year.

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 Half Moon Bay
We’re factory-trained on nine major residential brands, and we keep common parts for Goodman, Rheem, and York units stocked on our trucks. That means fewer second trips for a part that had to be ordered. Our brands coverage includes everything from older systems to current-model Daikin and more.
Pricing for HVAC Company in Half Moon Bay, CA
| Service | Typical range in Half Moon Bay |
|---|---|
| AC diagnostic and repair | $150 – $650 |
| Furnace diagnostic and repair | $150 – $700 |
| Full AC system installation | $3,500 – $7,500 |
| Seasonal tune-up | $80 – $200 |
Coastal corrosion and hard-to-reach condenser placements can push a repair toward the upper end of those ranges, but the price you’re quoted is the price you pay. We put every quote in writing before any work starts, and that number doesn’t move at the door.
Neighborhoods We Serve in Half Moon Bay
We run calls across the entire Half Moon Bay area, from the flats near Main Street to the hillside streets and the neighborhoods east of Highway 1. Typical response time across the city is same-day for most repair calls.
- Downtown Half Moon Bay
- Frenchmans Creek
- Ocean Colony
- Miramar
- Purissima
Service Area – Cities Near Half Moon Bay
Dalton Heating & Air dispatches from the San Francisco Bay Area office, and crews serve Half Moon Bay locally. We also cover nearby communities on the coast and over the hill, including El Granada, CA, Burlingame, CA, and Millbrae, CA. If you’re on the peninsula or the coastside, give us a call and we’ll tell you straight whether we can get a crew to you.
Serving Half Moon Bay, CA - Our Local Coverage Area
We’re based in the Half Moon Bay 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 Half Moon Bay
Most repair calls in Half Moon Bay get same-day service, especially during fall and winter when furnaces start acting up. We answer the phone live, 24/7, so you’ll know exactly when a technician is coming before you hang up. Call (361) 306-9515 to check current availability.
Larger installations, like a full system or heat pump replacement, typically go through San Mateo County permitting, and some hillside properties have additional requirements. We handle the paperwork and flag any site-specific concerns during the estimate. Smaller repairs don’t need permits.
Often yes. A flat $150 diagnostic gives you a straight answer: what’s wrong, what it costs to fix, and what it would cost to replace. You get that in writing, and there’s no obligation to proceed. Most older systems in Half Moon Bay have repairable problems, not terminal ones.
Contact Dalton Heating & Air in Half Moon Bay, CA
Marco Benitez leads the team at Dalton Heating & Air, and every call is backed by The Garrison Standard: written pricing before work starts, a written one-year guarantee on repairs, and a free return visit if the repair fails. Call (361) 306-9515 for a free estimate on AC repair, heat pump installation, or furnace repair in Half Moon Bay.
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 Half Moon Bay Customers Say
"Good communication, tidy, and disciplined work. Taped off the floor and wiped the unit down."
- Karen J."Installed a heat pump to replace an old oil furnace. Three clear quotes and the install crew was tidy."
- Cheryl B."Tech arrived in uniform right on time. AC wasn't cooling, found a failed capacitor, and replaced it in twenty minutes. The owner is a veteran and the company runs like it."
- Frank O.







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