Furnace & heating
AC repair
Ductless mini splits
TraneSeasonal 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.
Get your free estimateHVAC Company in East San Gabriel, CA
HVAC work in East San Gabriel runs into a set of conditions you won’t find in newer parts of the San Gabriel Valley. Most homes here were built between the 1950s and 1980s, many with post-and-beam framing, low-pitch roofs, and original ductwork that was sized for a different era. Add in summers that regularly push past 90°F and you get a workload dominated by AC repair from June through September, with lighter but real heating demand in winter. Dalton Heating & Air handles all of it with written pricing before any work starts and a full-year written guarantee on every repair. Call (626) 657-5344 and you’ll reach a live person, day or night.
Why East San Gabriel Homes Are Different
East San Gabriel’s housing stock is predominantly single-family detached homes from the mid-century era, and a lot of them were never designed for central air. The classic case is the 1960s slab-on-grade build: no crawlspace, no basement, and supply ducts embedded right in the concrete. Those ducts leak. They pull in dust, they bleed conditioned air into the ground, and they make indoor air quality worse than it should be. When we run a load calculation on one of these homes, we’re often looking at duct sealing as a first step, or in the worst cases, a conversion to a mini-split system that bypasses the buried ductwork entirely.
The other thing that sets East San Gabriel apart is the retrofit problem. When a mid-century home gets central air added for the first time, there’s usually no obvious place to put the air handler. Attics are shallow, closets are small, and hallways are tight. That’s where high-efficiency mini-splits and creative duct routing come in. Post-and-beam construction means fewer interior load-bearing walls to work around, but it also means running lines through open ceiling spaces and along exterior walls. It’s slower, more careful work – and it’s exactly the kind of job where a written price and a crew that shows up on time matter most.
Styles & brands we work with




Our Main East San Gabriel Services
The two calls we get most in East San Gabriel are AC failures during summer heat and furnace trouble when winter nights dip into the 40s. Heat pump installations are growing fast as homeowners look for a single system that handles both. Each service has its own detailed page below.
AC Repair in East San Gabriel
When an AC fails in East San Gabriel in July, it’s not a minor inconvenience – indoor temperatures can climb past 90°F by late afternoon. Most calls start with a capacitor or contactor failure, a refrigerant leak, or a condenser fan motor that’s seized. On slab-on-grade homes, we also check for duct leakage that’s making the system work harder than it should. We stock parts for Carrier, Trane, Lennox, and Goodman on our trucks, which means most repairs are done the same day. Full details on AC Repair in East San Gabriel.

Heat Pump Installation in East San Gabriel
Heat pumps make a lot of sense in East San Gabriel because winters are mild enough that a properly sized unit can handle most heating days without a gas backup. The challenge is placement. Post-and-beam homes often lack a dedicated utility room, so we size outdoor units carefully and route refrigerant lines where they won’t fight the architecture. A heat pump also removes the need for ductwork in some retrofits, since ductless heads can serve individual rooms. See the full breakdown on Heat Pump Installation in East San Gabriel.

Furnace Repair in East San Gabriel
East San Gabriel winters are mild but not optional – nights in December and January regularly drop into the low 40s, and an aging gas furnace that won’t fire leaves a house cold fast. Common failures include ignitor wear, flame sensor carbon buildup, and blower motor burnout on units that haven’t run since spring. Since many furnaces here sit in cramped hallway closets or garage corners, access is often tight, which is why we send background-checked technicians who are trained to work in confined mechanical spaces. More on Furnace Repair in East San Gabriel.

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 East San Gabriel
Our technicians are factory-trained on Carrier, Trane, Lennox, and Goodman, and we stock common parts for each on our trucks. That means most East San Gabriel repairs don’t wait on a parts run. See our brands for the full list of nine major residential HVAC manufacturers we service.
See the difference
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AfterPricing for HVAC Company in East San Gabriel, CA
Here’s what homeowners in East San Gabriel should expect to pay for the most common jobs. These are realistic ranges based on local market conditions – your exact price is written down before any work starts.
| Service | Typical range in East San Gabriel |
|---|---|
| AC repair (minor: capacitor, contactor) | $150 – $350 |
| AC repair (major: compressor, coil) | $450 – $650 |
| Furnace repair (minor: ignitor, flame sensor) | $150 – $350 |
| Furnace repair (major: blower motor, gas valve) | $400 – $700 |
| AC installation (full system) | $3,500 – $7,500 |
| Tune-up (AC or furnace) | $80 – $200 |
What pushes a job toward the high end in East San Gabriel is access – tight attic spaces, slab-embedded ductwork that needs sealing, and retrofit work that wasn’t planned for when the house was built. Whatever the number, you’ll see it in writing before we begin. That’s not a courtesy. It’s The Garrison Standard, and it applies to every call.
Neighborhoods We Serve in East San Gabriel
We run service across all of East San Gabriel, including the pockets where mid-century slabs and post-and-beam homes cluster together. Response time for emergency AC calls is typically same-day during the summer season.
- The north side of Valley Boulevard
- Homes near San Gabriel High School
- The residential streets east of Del Mar Avenue
- The area around East San Gabriel Park
- Neighborhoods off East Las Tunas Drive
Service Area – Cities Near East San Gabriel
While this page focuses on East San Gabriel, our crews also serve the neighboring communities across the western San Gabriel Valley. If you’re just over the line, you’re still in range. We regularly work in Pasadena, CA, East Los Angeles, CA, El Monte, CA, and Alhambra, CA. Each city has its own housing stock and its own quirks, but the pricing model stays the same: written quote, written guarantee, no surprises.
Serving East San Gabriel, CA - Our Local Coverage Area
We’re based in the East San Gabriel 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 East San Gabriel
For AC failures in summer and furnace failures in winter, yes – same-day response is available across East San Gabriel. Call (626) 657-5344 and a live person answers 24/7. For installations and tune-ups, we schedule a set time that works for you.
Many HVAC changes in East San Gabriel require a permit, especially ductwork modifications, new gas lines, or equipment replacements that change electrical load. We handle the paperwork and inspections as part of the job, so you don’t have to chase the building department yourself.
Every repair we make in East San Gabriel comes with a written guarantee covering the work for a full year – 365 days, not 30. If the repair fails during that window, we return at no charge. That’s the 365-Day Done Right Promise, and it’s in writing on every service call.
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 East San Gabriel Customers Say
"Changed the filter size and added a better filter rack. Simple and useful advice."
- Rhonda C."Fixed our AC and the price was fair. Showed up a bit past the window, but he called ahead."
- Dennis R."Blower motor died on the coldest night. They had the part on the truck and had us warm again the same day."
- Sandy G.