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 Gilroy, CA
Gilroy sits at the southern edge of the Santa Clara Valley, where summer temperatures routinely push into the 90s and winter nights can dip near freezing. The housing stock runs from 1960s ranch homes near downtown to newer builds east of Highway 101, and each era of construction puts different demands on an HVAC system. Dalton Heating & Air handles all of it: AC repair, heat pump installation, and furnace repair across Gilroy, with written pricing before any work starts. If your system is acting up, call (361) 306-9515 and a real person answers, 24/7.
Why Gilroy Homes Are Different
Gilroy’s inland location means it misses the coastal fog that keeps San Jose and points north cooler. A typical July afternoon here runs 10 to 15 degrees hotter than Santa Cruz, which is only 30 miles west. That heat load is why air conditioning in Gilroy works harder and fails more often than in bayfront towns. We see condensing units on the west side of homes baking in direct afternoon sun, and the strain shows up in capacitors, contactors, and compressor windings.
The garlic capital also has some of the most varied housing stock in South County. Older neighborhoods like the streets around downtown and the area near Christopher High School have homes from the 1950s and 60s, many with ductwork that was sized for heating only. Newer subdivisions east of Highway 101 and near Eagle Ridge have tighter envelopes and heat pump-ready wiring, but tighter homes trap humidity, which changes how a system should be set up. Terrain matters too: homes on the western slopes toward the Santa Cruz Mountains deal with more dust and pollen, which clogs outdoor coils faster than flatland properties.
Our Main Gilroy Services
Most calls we take from Gilroy homeowners fall into two categories: getting a failed system running again, and putting in equipment sized for this valley’s actual heat load. Here is how each works here.
AC Repair in Gilroy
When your AC quits on a 95-degree Gilroy afternoon, the diagnosis has to be fast and the fix has to hold. Our technicians carry the common failure parts on the truck: capacitors, contactors, fan motors, and refrigerant for most systems. We service all nine major brands, which matters in Gilroy because the housing stock spans decades and no single brand dominates. The first step is always a written price before any work begins. Full details on what we fix and what it costs are on the AC Repair in Gilroy page.

Heat Pump Installation in Gilroy
A heat pump is a single system that heats and cools, and for Gilroy’s climate profile it is often the right call: warm winters mean a heat pump rarely struggles, and the cooling side handles the hot inland summers efficiently. Installation here requires a load calculation, because a 1,400-square-foot 1960s ranch and a 2,600-square-foot newer build need very different capacities. We size it by the book, not by rule of thumb. Pricing, sizing, and rebate paperwork are covered on the Heat Pump Installation in Gilroy page.

Furnace Repair in Gilroy
Gilroy winters are mild by national standards, but a December night in the 30s will still expose a failing furnace. Common issues here include dirty flame sensors, failing ignitors, and cracked heat exchangers in older units. We diagnose the problem, quote the fix in writing, and guarantee the repair for a full year. If it fails within that time, we return at no charge. The Furnace Repair in Gilroy page has the full breakdown of common faults and repair costs.

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 Gilroy
Our technicians are factory-trained on the systems Gilroy homes actually run: Goodman, Rheem, York, and Daikin among them. We keep common parts for these brands stocked locally, which shortens turnaround when a system fails. See the full our brands list for every manufacturer we cover.
Pricing for HVAC Company in Gilroy, CA
| Service | Typical range in Gilroy |
|---|---|
| AC diagnostic visit | $150 – $650 |
| AC capacitor or contactor replacement | $150 – $650 |
| AC thermostat replacement | $150 – $650 |
| AC condensate line clear | $150 – $650 |
| Furnace diagnostic visit | $150 – $700 |
| Furnace ignitor or flame sensor replacement | $150 – $700 |
| Furnace gas valve replacement | $150 – $700 |
| Furnace blower motor repair | $150 – $700 |
| Full AC system installation | $3,500 – $7,500 |
| Seasonal tune-up | $80 – $200 |
In Gilroy, the biggest price drivers are system age and heat exposure. Units that have run hard for 15-plus summers on the west side of a house tend to need more than a single part. Whatever the diagnosis, Dalton gives you the price in writing before any work starts, and that number does not change at the door.
Neighborhoods We Serve in Gilroy
We run crews throughout Gilroy, including the older grid near downtown, the newer subdivisions east of Highway 101, and the hillside streets west of Santa Teresa Boulevard. Typical response time across the Gilroy area is same-day for emergency calls placed before early afternoon.
- Downtown Gilroy
- Eagle Ridge
- Northwest Gilroy off Hecker Pass
- Streets near Christopher High School
- Eastern side closer to San Martin
Service Area – Cities Near Gilroy
Beyond Gilroy proper, our technicians cover the surrounding South County and South Bay communities. Homeowners in San Martin, CA and Morgan Hill, CA call us for the same written-price, written-guarantee standard. We also serve parts of the West Valley, including Los Gatos, CA, and handle select calls in Campbell, FL. Dispatch and scheduling are coordinated from our San Francisco Bay Area office; the crews you see in Gilroy are local to South County.
Serving Gilroy, CA - Our Local Coverage Area
We’re based in the Gilroy 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 Gilroy
Same-day in most cases. Calls placed before early afternoon can usually get a technician to a Gilroy address that day. Evenings and weekends are covered too, because our phone line is staffed by a live person 24/7. Call (361) 306-9515 and we will give you a straight answer on timing.
Sometimes. Newer planned communities in Gilroy, particularly east of Highway 101, may have rules about where a condenser unit can sit or how visible it is from the street. We handle the technical work; if your HOA needs documentation on equipment placement or noise ratings, tell us when you book, and we will get you what they need.
Yes. If your furnace needs a repair and your AC is due for a tune-up, we can handle both in one visit during spring or fall. That saves a second dispatch fee and gets the whole system ready for the next season. Call (361) 306-9515 for a free estimate on any Gilroy HVAC work.
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 Gilroy Customers Say
"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."Blower motor died on the coldest night. They had the part on the truck and had us warm again the same day."
- Sandy G.







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