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 estimateFast, Reliable AC Installation Across Houston
AC installation in Houston typically runs $3,500 – $7,500 for a full central system, and the single biggest mistake we see is a like-for-like swap that ignores what the house actually needs. If your 1980s tract home still has original flex duct sagging through a vented attic, a new 3-ton condenser won’t fix the hot bedrooms or the humidity. That’s what we focus on at Cold Harbour Heating and Air Houston – the whole system, not just the box outside. Call (832) 371-9862 and we’ll send a background-checked technician who will put a written price in your hand before any work begins.
Why Cold Harbour Heating and Air Houston Is Houston’s Preferred AC Installation Company
We’ve been doing AC Installation work in Houston long enough to know that every neighborhood has its own set of problems. A Heights bungalow on pier-and-beam fights ground-level humidity. A Sharpstown ranch built in 1979 usually has one undersized return in the hallway and flex duct that’s seen better days. A Kingwood two-story has a different balance issue entirely – hot upstairs, cold downstairs, and a blower motor starving for air. Victor Mancini, who leads our Houston office, has walked through enough of these houses to know where the problems hide before the first tool comes out.
What homeowners in Houston tell us they want is simple: a company that answers the phone, shows up in the window it promised, and puts the guarantee on paper. That’s Houston service the way we run it. Every job starts with a written price before the work begins. Every repair carries the 365-Day Done Right Promise – if it fails within a full year, we come back and correct it at no charge. No handshake deals, no door-to-door surprises.
Our dispatch and scheduling run from the Houston office, so the technician heading to your house already knows the route, the traffic patterns on 610 at 4 p.m., and what to expect when they pull up. That local familiarity matters when your AC quits on a 97-degree afternoon and you need someone who actually picks up the phone – which we do, 24 hours a day, 7 days a week, with a live person.
Styles & brands we work with
Ductless Mini Split Installation in Houston
Ductless mini split installation in Houston usually runs $3,500 – $6,500 for a single-zone system and $5,500 – $7,500 for a multi-zone setup with up to four heads. It’s the right answer for a lot of Houston homes because it solves a problem central air was never designed to fix: rooms that were added on over the decades and never got proper ducting. That converted garage, the game room over the slab, the primary suite tacked onto the back of a 1960s bungalow – a ductless head puts cooling exactly where you need it, without tearing out drywall or running new flex through an attic that hits 140°F in August.
Pier-and-Beam and Old Ductwork
Older Houston houses, especially inner-loop bungalows in the Heights and Montrose, often sit on pier-and-beam foundations with floor vents and crawl spaces that hold moisture. Running ductwork through that environment is expensive and often pointless when a mini split can condition the space directly. We’ve put single-zone units into primary bedrooms where the central system just couldn’t reach, and the humidity difference is immediate.
Added Rooms and Garage Conversions
Houston’s unzoned sprawl means a lot of homes grew over time without a permit pulling in a load calculation. A ductless mini split lets us condition a 300-square-foot addition without upsizing the main system or redoing the return. It’s often the difference between a $4,000 fix and a $12,000 whole-house rework.
AC Replacement in Houston
AC replacement in Houston costs $3,500 – $7,500, and the price depends on what the house actually needs – not just what the old condenser said on its nameplate. The most common failure we see is a straight swap: a 3.5-ton unit goes out, another 3.5-ton unit goes in, and the same hot bedroom is still hot. That’s because the real problem was undersized or torn ductwork in a vented attic, or one central return that can’t feed the blower. Before we recommend a replacement, we run a full Manual J load calculation on older Houston homes so the new system matches the house as it stands today – not as it was designed in 1985.
Load Calculation and Duct Assessment
Before we quote a replacement, we measure the rooms, check the windows, look at the insulation, and test the static pressure on the existing ducts. If the ductwork is leaking 30 percent of the conditioned air into a vented attic, a new condenser is just expensive lipstick. We’ll tell you that straight, because the written price you get from us should cover work that actually fixes the problem.
Electrical Panel and Code Work
Some of Houston’s older housing stock – bungalows and mid-century ranches inside the 610 Loop – still runs on 100-amp panels with no spare breakers. A modern heat pump or a higher-tonnage system can require a subpanel or a service upgrade before anything gets wired. We assess that during the estimate, not after the old unit is already on the truck.
Trusted Brands We Service in Houston
Our technicians are trained to service and install nine major residential brands, and in Houston we stock parts for the systems we see most: Carrier, Trane repair in Houston, Lennox, and Goodman. That means when your Goodman condenser from 1998 finally gives up in a Heights bungalow, or your Trane from 2005 needs a replacement coil in Clear Lake, we’re not waiting days on a distributor. We carry common capacitors, contactors, boards, and coil matches in the Houston office, and we can source equipment quickly from local supply houses we’ve worked with for years. You’ll get an honest match for your home’s ductwork and load, not whatever happens to be on the shelf.
See the difference
Before
After
Before
After
Before
AfterCommon AC Installation Problems We See in Houston Homes
- Undersized return air. 1970s – 2000s tract homes in Houston often have one central return in the hallway. After a garage conversion or a game room addition, the blower motor starves for air, ice forms on the evaporator coil, and the compressor eventually dies. We check static pressure before we recommend anything.
- Like-for-like swaps without a load calculation. Replacing a 3.5-ton condenser with another 3.5-ton unit on old, leaky flex duct saves money upfront but leaves the same hot bedrooms and high humidity. The real problem was the ducts, not the box outside.
- Electrical panels that can’t handle modern equipment. Inner-loop Houston bungalows built before 1970 often have 100-amp panels with no spare breakers. A new heat pump or higher-tonnage system needs a subpanel or service upgrade first, and that has to be part of the quote – not a surprise halfway through the install.
- Mold in evaporator coils and ductwork. Houston’s humidity is relentless, and a coil that never dries out breeds mold inside a season. When we replace a system in an older Houston home, we address the moisture source – sealed crawl space, better drainage, improved return airflow – so the new coil doesn’t end up the same way.
Pricing for AC Installation in Houston, TX
Here’s what AC installation costs in Houston, written in plain numbers:
| Service | Price Range (Parts & Labor) |
|---|---|
| AC Replacement | $3,500 – $7,500 |
| Ductless Mini Split Installation (single-zone) | $3,500 – $6,500 |
| Ductless Mini Split Installation (multi-zone, up to 4 heads) | $5,500 – $7,500 |
What moves the price is the house: the tonnage the load calculation calls for, the condition of the existing ducts, whether the electrical panel has room, and whether we’re doing a straight condenser swap or a full system with new ductwork. A 1,200-square-foot patio home in Pasadena is a different job than a 2,400-square-foot two-story in Cypress with a heat pump and zoning. You’ll get a written price before any work begins, and that price does not change at the door. Call (832) 371-9862 for a free estimate.
We Also Serve Cities Near Houston
Our Houston office dispatches technicians to surrounding communities, so if you’re in Pasadena, Channelview, South Houston, or La Porte, the same crew that handles AC Installation in Houston can reach you quickly. We know the housing stock in these areas – lots of 1960s and 1970s single-story homes with original equipment – and we price the same way across the metro: written, upfront, and guaranteed.
Serving Houston, TX - Our Local Coverage Area
We’re based in the 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 AC Installation in Houston
Because the ductwork feeding that bedroom was undersized from the day the house was built, and a new condenser doesn’t change that. Houston tract homes from the 1970s through the 2000s typically have one central return in the hallway and long flex runs through vented attics, which lose a third of their airflow by the time it reaches the farthest room. We fix this by measuring static pressure, trimming or replacing the ducts, and sometimes adding a return or a ductless unit. Call (832) 371-9862 and we’ll diagnose the actual airflow problem before you spend another dollar on equipment.
Yes, and any contractor who skips it is guessing. A Manual J calculation factors in square footage, ceiling height, window area, insulation levels, and orientation, and in Houston it has to account for the humidity load, not just the temperature. Older Houston homes have often been added onto over the decades – a 3-ton system sized for a 1,500-square-foot 1980s ranch is now trying to cool 2,200 square feet. The calculation tells you exactly what the house needs today. We include it on every installation quote.
Because power surges from lightning strikes and grid flickers hit the capacitor first, and Houston’s spring and summer thunderstorm season delivers those surges by the dozen. Older neighborhoods with overhead power lines – common inside the 610 Loop and in older suburbs – are more exposed. When the capacitor goes, the compressor won’t start, and that’s a classic Houston no-cool call. We keep common capacitor sizes on the truck and in the Houston office so we can usually restore cooling the same day. If you’re tired of losing a capacitor every thunderstorm season, ask about a surge protector installed at the disconnect.
Often, yes. Pier-and-beam foundations mean there’s a crawl space under the house, and in Houston that crawl space holds humidity that concrete-slab homes don’t deal with the same way. Running ductwork through that environment is costly and inefficient, and the crawl space itself becomes a moisture problem. A ductless mini split avoids ducts entirely, conditions rooms individually, and lets you keep the crawl space sealed and dehumidified rather than using it as a duct chase. For a bungalow with one or two problem rooms, a mini split is frequently the cleaner, cheaper fix. Call (832) 371-9862 and we’ll walk the house and tell you straight which way to go.
A new system alone won’t prevent it, but the right installation can. Mold grows in evaporator coils because moisture sits on them and never fully drains, and Houston’s humidity makes that nearly constant. If we replace your coil and don’t fix the underlying issue – poor return airflow, a clogged drain line, a crawl space that’s wet, ducts that pull humid attic air through leaks – the new coil will eventually look like the old one. We address the source: seal the ducts, correct the return air, clear the condensate path, and where the house needs it, seal and dehumidify the crawl space. Our 365-Day Done Right Promise covers the work, and that guarantee is written down before we leave.
If your Houston home needs AC installation, replacement, Furnace Repair - Houston, or a ductless system, call (832) 371-9862. We’ll answer the phone, schedule a firm arrival window, and hand you a written price before any work starts. That’s the Kingswell Way, and it’s how we’ve operated in Houston since our founding in 2003.
Written by Victor Mancini, Owner at Cold Harbour Heating and Air Houston, serving Houston since 2003.