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 South Houston, TX
South Houston HVAC work is not the same as it is a few miles north in Houston proper. Our technicians work on small, aging homes where humidity loads are extreme, mechanical closets are tight, and outdoor units have spent years fighting salt air and standing water. We’re Coldharbour Heating & Air, and we serve South Houston with written pricing, a 365-day repair guarantee, and a live person on the phone at (832) 371-9862 any hour you call.
Why South Houston Homes Are Different
South Houston’s housing stock is largely small single-family homes built between the 1940s and 1970s. Many are pier-and-beam or slab, with original low-pitch roofs, minimal insulation, and cramped mechanical closets that were never designed for today’s high-efficiency equipment. Additions and garage conversions are common, which means mismatched duct systems and undersized electrical panels turn simple repair calls into deeper retrofit work.
The climate compounds it. South Houston sits on flat, low-lying terrain prone to poor drainage and occasional flooding. Summers bring intense heat and oppressive humidity, so the system has to remove enormous moisture loads while holding a set temperature. In older sections around Spencer Highway, we often find condensing units perched on wooden blocks or sitting in shallow depressions that flood during summer thunderstorms. The result is frequent compressor failures, rusted control boards, and contactors that corrode from salt-laden air drifting in from the coast. Any repair plan in South Houston has to account for what the environment has been doing to the equipment for years, not just what broke this week.
Styles & brands we work with
Our Main South Houston Services
Most calls we take from South Houston homeowners fall into two categories: getting a system running again in brutal heat or replacing equipment that has rusted and worn past the point of reliable repair. Here is how each works in this city.
AC Repair in South Houston
When an air conditioner fails in South Houston in August, the humidity starts climbing inside the house almost immediately. Our technicians diagnose the problem, show you the failed part, and hand you a written price before any work starts. We handle refrigerant leaks, failed capacitors, rusted contactors, and compressor failures on all major brands. Every repair carries our 365-Day Done Right Promise in writing. Full details are on the AC Repair in South Houston page.
Furnace Repair in South Houston
South Houston’s furnaces run less than they do up north, but the damp, salty air attacks igniters, flame sensors, and control boards year-round even when the heat is off. Corrosion is the number one issue we see on furnace calls here. We repair gas furnaces from all major brands, provide a written quote before the work, and back the repair for a full year. See Furnace Repair in South Houston for the specific jobs and price ranges.
AC Installation in South Houston
Replacing a system in a 1950s South Houston bungalow is rarely a simple swap. Ductwork may be undersized, the electrical panel may need work, and tight lot lines often dictate where the outdoor unit can legally sit. We load-calculate, pull the necessary permits, and set a firm install date with a written fixed price before any equipment is ordered. Your options, including efficiency levels and financing, are laid out on the AC Installation in South Houston 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 South Houston
Our technicians are trained to work on Lennox, Goodman, Rheem, York, and five other major residential brands. We stock common replacement parts for these systems in our Houston warehouse, which means many South Houston calls wrap up the same day. Learn more about our brands.
See the difference
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AfterPricing for HVAC Company in South Houston, TX
Here are the ranges South Houston homeowners typically see on our jobs. They include parts and labor. Your written quote will be exact, not a guess.
| Service | Typical range in South Houston |
|---|---|
| AC repair | $150 – $650 |
| Furnace repair | $150 – $700 |
| AC installation | $3,500 – $7,500 |
| Seasonal tune-up | $80 – $200 |
What pushes a South Houston job toward the top of these ranges is usually corrosion or geography: a rusted control board on a unit that has spent years near standing water, or a compressor that failed after flooding. The price you are handed before the work begins is the price you pay. It does not change at the door, and that is a core plank of the Kingswell Way we follow on every job.
Neighborhoods We Serve in South Houston
We run calls across the entire city, including the older streets around Spencer Highway, the neighborhoods near South Houston High School, and the residential blocks off College Avenue and Allen-Genoa Road. Because we dispatch from Houston and keep local crews on the road, we are typically in your neighborhood within the day.
- Spencer Highway corridor
- Neighborhoods near South Houston High School
- College Avenue residential blocks
- Allen-Genoa Road area
- South Houston Gardens
Service Area – Cities Near South Houston
Along with South Houston itself, we cover the surrounding communities in southeast Harris County. If you are in Pasadena, TX, La Porte, TX, Channelview, TX, or Houston, TX, the same written pricing, live-answer phones, and 365-day repair guarantee apply. Dispatch is coordinated from our Houston office, and crews serve South Houston locally.
Serving South Houston, TX - Our Local Coverage Area
We’re based in the South Houston 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 South Houston
We typically reach South Houston homes the same day you call, often within a few hours for a no-cooling emergency. Our phones are answered by a live person 24 hours a day, seven days a week, so you will always speak to someone who can schedule the visit. Call (832) 371-9862.
Yes, most equipment replacements in South Houston require a city permit, which we pull for you as part of the job. Our installers handle the paperwork, schedule inspections, and make sure the work meets current local code before the city signs off.
We serve all of South Houston plus the surrounding communities of Pasadena, La Porte, Channelview, and Houston. If you are not sure whether you are in our service area, call us and a live person will confirm it on the spot and get a technician scheduled.
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 South Houston Customers Say
"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"Thermostat and a weak blower. Fixed both in one visit, explained the guarantee, and didn't leave a mess. I've already recommended them to my neighbor."
- Natalie Esposito"AC quit on the hottest day of the year of course. Coldharbour had a tech out that evening, found a bad capacitor, and had us cool again within the hour. Charged the quote, not a penny more."
- Doug Feeney