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 South Houston, TX
South Houston runs hot and humid for the better part of eight months a year. The housing stock is older than what you’ll find in newer suburbs, and a lot of it was built before modern insulation and sealed ductwork were standard. That combination means an HVAC company in South Houston spends a lot of time fixing systems that work hard and age fast. We show up with written pricing and a parts stock that covers the brands already installed in these homes. Call (361) 306-9515 when your system quits.
Why South Houston Homes Are Different
South Houston is dense, flat, and low-lying. The water table sits close to the surface, so crawlspaces and pier-and-beam foundations stay damp. That moisture gets pulled into return ducts and settles on evaporator coils. We replace more rusted drain pans and corroded wire terminals here than in drier parts of the metro. Mold growth on coils is a constant fight, and it is not just an air quality problem; it cuts airflow and makes the compressor work harder than it should.
The homes themselves are a mix of 1950s and 1960s bungalows, a wave of 1970s ranch styles, and a surprising number of add-on rooms. The add-ons are the trouble spots. We see window units that were removed and a flex duct tapped into an existing plenum, with no thought given to the additional load. The blower ends up undersized, so the last room gets hot air at best. Working around South Houston means assessing the whole duct run, not just the unit sitting on the pad. Clay soil also shifts with the wet-dry cycle, which puts stress on line sets and can crack a condenser slab over time.
Our Main South Houston Services
Three jobs dominate our South Houston calls: getting an AC back online in summer, swapping an aging system for a heat pump when it makes financial sense, and keeping furnaces running through the short cold snaps that catch people off guard.
AC Repair in South Houston
Most AC repair calls in South Houston are no-cool or low-cool complaints, and they spike in July and August when the heat index stays above 100 for weeks. We diagnose by checking the refrigerant charge, capacitor health, contactor wear, and the condition of the condenser coil. Coastal humidity means a dirty coil and a weak capacitor are frequently working together to kill the system. Marco Benitez and his team handle all nine major residential brands, so the fix is usually same-day from our stocked truck. AC Repair in South Houston covers pricing, common failures, and what the guarantee includes.

Heat Pump Installation in South Houston
South Houston’s mild winters make a heat pump a sensible replacement for a straight-cool AC paired with a gas furnace. A heat pump handles both heating and cooling, and it lets homeowners drop their gas bill during the short heating season. The installation starts with a load calculation, not a guess, and we size the unit for the home’s envelope, including South Houston’s add-on rooms and older ductwork. Newer models from Trane, Lennox, and Goodman qualify for utility rebates, and we document the paperwork. Heat Pump Installation in South Houston walks through costs, timelines, and what to expect.

Furnace Repair in South Houston
South Houston furnaces sit idle for ten months a year, so when a cold front hits, ignition failures, bad limit switches, and blower motor problems come out of nowhere. The most common issue is a flame sensor that has been corroded by Gulf humidity while the unit was dormant. We run a full safety check on the heat exchanger and exhaust path on every furnace call, not just a replacement part. If the estimate makes more sense to swap the unit than patch it, we say so in writing. Furnace Repair in South Houston breaks down what parts cost and what we check.

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
We service the brands already installed on South Houston streets: Trane, Lennox, Goodman, and Rheem are the most common, but our technicians are factory-trained on nine major residential lines. Our trucks stock capacitors, contactors, igniters, and common control boards so most repairs happen on the first visit. Our brands page lists the full lineup.
Pricing for HVAC Company in South Houston, TX
Here are the ranges we quote across South Houston. The price you pay is in writing before any work starts, and it never shifts at the door.
| Service | Typical range in South Houston |
|---|---|
| AC Repair | $150 – $650 |
| Furnace Repair | $150 – $700 |
| AC Installation | $3,500 – $7,500 |
| Tune-Up | $80 – $200 |
What pushes an AC repair toward the top of that range in South Houston is usually a refrigerant leak plus a failed component at the same time, or a compressor that has been running against a clogged coil for months. Labor rates are consistent; the part price is what varies. Every repair carries The Garrison Standard’s written guarantee for a full year. If the repair fails in that window, we return at no charge.
Neighborhoods We Serve in South Houston
We work all of South Houston. Response time runs under two hours for most calls in the area, and emergency calls are answered by a live person at any hour.
- South Houston Gardens
- Royal Palms
- Armstrong Court
- Glen Villa
- Southfork
Service Area – Cities Near South Houston
We also handle HVAC calls in neighboring cities. If you’re in Pasadena, MD, Galena Park, TX, Deer Park, CA, or Pearland, TX, the same written pricing and guarantee apply. Scheduling for all of these areas runs through our Houston dispatch office, and our crews serve each city 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
Most calls in South Houston are handled within two hours. Emergency calls are answered by a live person 24/7, and we dispatch locally. Call (361) 306-9515 and you’ll get a real scheduler, not a voicemail queue.
Yes. A permit is required for new system installations and major replacements in South Houston. We pull the permit, schedule the inspection, and close it out. The homeowner never has to chase city hall. Repairs generally do not require a permit.
We install within HOA requirements where they exist in South Houston neighborhoods. That usually means condenser placement, noise limits, and no visible line-set runs on the front facade. If your HOA has a specific rule, tell us before the install date and we’ll plan around it.
If your system is down or you want a straight answer on what a repair costs in South Houston, call (361) 306-9515 for a free estimate. The price is in writing before we start, and the work is guaranteed for a full year.
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
"Coil cleaning and a refrigerant check before summer. AC has never been this cold."
- Marty D."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.







Before
After
Before
After
Before
After