Furnace & heating
AC repair
Heat pumps
Ductless mini splits
Carrier
Trane
GoodmanSeasonal 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 Newark, CA
If you live in Newark, you know the drill: foggy, cool mornings that give way to warm, windy afternoons, and salt air that never really leaves. That combination means your heating and cooling equipment works harder and corrodes faster than it would a few miles inland. We’re Coldharbour Heating & Air, and we handle AC repair, furnace repair, and AC installation across Newark with written pricing and a 365-day guarantee on every repair. Call (669) 800-4179 and you’ll reach a live person, day or night, not a voicemail tree.
Why Newark Homes Are Different
Newark sits on the eastern edge of the San Francisco Bay, and the weather here is not the same as in Fremont or Union City. The marine air slides across the sloughs and open land, carrying salt that settles on condenser coils. In neighborhoods near the Don Edwards San Francisco Bay National Wildlife Refuge and along Mowry Slough, we regularly see outdoor units that are only five or seven years old with fins already crumbling from corrosion. That kind of damage is rare just two miles inland, but in Newark it’s expected.
The housing stock adds another layer. A large share of Newark’s single-family homes were built between the 1950s and 1980s, and many of the 1960s and 1970s tract homes use slab-on-grade construction. That usually means the ductwork runs through the attic, where summer temperatures can climb well past 120 degrees. A system that looks fine on paper can lose 20 to 30 percent of its cooling before the air ever reaches a vent. When we diagnose an AC problem in Newark, we check the attic runs as a matter of course, because that’s often where the real efficiency loss is hiding.
Styles & brands we work with
Our Main Newark Services
Most Newark homeowners reach out for help with two things: an air conditioner that stopped cooling, or a furnace that won’t keep the house warm when the afternoon wind picks up. Each of these has its own dedicated Newark page below, along with AC installation for when a replacement makes more sense than another repair.
AC Repair in Newark
AC systems here fail differently than they do inland. The salt air accelerates corrosion on condenser coils and electrical connections, especially in neighborhoods closer to the Bay. A unit that would run fine for fifteen years in Fremont might need a coil replacement at year six in Newark. We also see a lot of capacitor failures from the constant wind cycling the fan on and off. When you call our AC Repair in Newark page, you’ll get a technician who knows what Newark’s air does to equipment and brings the right parts on the first trip.
Furnace Repair in Newark
Furnace work in Newark has its own rhythm. The shoulder seasons last longer here because the afternoon Bay wind carries a chill into April and even May. That means furnaces log more run-hours than you’d expect for a city with mild winters. Older homes with original ductwork often have airflow restrictions that make furnaces cycle too often, which wears out igniters, flame sensors, and blower motors prematurely. Our Furnace Repair in Newark page covers the repairs we do most often and what they cost.
AC Installation in Newark
When an AC system in Newark is beyond repair, we handle full replacements. Because so many homes here have attic ductwork and slab foundations, a proper installation involves more than swapping the outdoor unit. We check the existing ducts for leaks, assess the attic insulation, and recommend corrosion-resistant coils when the home sits near the Bay or the sloughs. Every installation gets a written price before any work begins, and you’ll know the install date in advance. See the details on our AC Installation in Newark 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 Newark
Trane, Lennox, and Goodman systems are common throughout Newark’s older tract homes, and we also work on Rheem equipment regularly. Our technicians carry common replacement parts for these brands on their trucks, which shortens turnaround on most repairs to a single visit. See the full list on our brands page.
See the difference
Before
After
Before
After
Before
AfterPricing for HVAC Company in Newark, CA
| Service | Typical range in Newark |
|---|---|
| AC diagnostic visit | $150 – $400 |
| Capacitor replacement | $150 – $350 |
| AC refrigerant recharge | $200 – $650 |
| Condenser coil replacement | $400 – $650 |
| Furnace diagnostic visit | $150 – $400 |
| Igniter replacement | $150 – $280 |
| Flame sensor replacement | $150 – $350 |
| Blower motor replacement | $250 – $700 |
| Full AC system replacement | $3500 – $7500 |
| Seasonal tune-up | $80 – $200 |
Two things push AC repair costs toward the upper end of these ranges in Newark. The first is corrosion: when salt air has eaten into a coil or electrical connection, the depth of the damage sometimes isn’t clear until the unit is opened up. The second is attic access. On slab-on-grade homes, reaching the ductwork or air handler often means working in a hot, tight attic space, which adds labor time. Whatever the job, you get a written price before any tool comes out, and that number does not change at the door.
Neighborhoods We Serve in Newark
Our Newark crews work across the whole city, from the older neighborhoods west of 880 to the newer developments along the east side. Most repair calls in Newark get same-day or next-day scheduling, and we’ll give you a firm arrival window instead of a vague “sometime in the afternoon.”
- Newark proper
- West Newark near the Bay
- The neighborhoods around Mowry Avenue
- East Newark near Thornton Avenue
- Areas bordering the Don Edwards Refuge
Service Area – Cities Near Newark
While this page focuses on Newark, our techs also run calls in the surrounding cities. Homeowners in Fremont, CA, Union City, CA, Palo Alto, CA, and Sunnyvale, CA can reach the same live-person line at (669) 800-4179 for scheduling, a written quote, or emergency repair service.
Serving Newark, CA - Our Local Coverage Area
We’re based in the Newark 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 Newark
Most Newark repair calls are handled same-day or next-day. When you call (669) 800-4179, you’ll talk to a live person who can confirm the next available window, and you’ll get a firm arrival time rather than an open-ended estimate.
For a full AC replacement, yes, the City of Newark requires a mechanical permit. Coldharbour handles the permit paperwork as part of the installation, so you don’t have to visit City Hall or manage anything yourself.
No overtime charge. The price you’re quoted is the price you pay, whether the call comes on a Tuesday morning or a Sunday night. Our phones are answered by a live person 24 hours a day, seven days a week.
If your air conditioner is struggling in the salt air or your furnace won’t fire on a windy Newark evening, call (669) 800-4179. We’ll give you a straight answer, a written price, and a repair that’s covered in writing for 365 days.
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 Newark Customers Say
"Our upstairs never cooled right. He found the duct run was half blocked and the system low on charge, fixed both, and now the whole house is even. Explained every step."
- Deanna Boleyn"New AC and furnace. They gave me a written quote with a couple of options and no pressure. Showed up on the day they promised and the new system is so much quieter."
- Gloria Dunn"New mini split for the addition. Clean install, on time two days running, and the price matched the written quote to the dollar."
- Yvonne Prewitt