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 Dallas
AC installation in Dallas typically runs $3,500 – $7,500 for a complete system, with most jobs finished in one day. If your current unit is over 12 years old, struggling to hold 72 degrees in July, or cycling on and off constantly, a new system may be the smarter money than another repair. We’re Cold Harbour Heating and Air Marietta, and our crews serve Dallas every week with a written price before any work begins and a live person on the phone day or night. Call (762) 240-5599 for a free estimate at your Dallas home.
Why Cold Harbour Heating and Air Marietta Is Dallas’s Preferred AC Installation Company
Dallas homeowners have a specific problem: a lot of houses were built fast between 1990 and 2020, and the HVAC systems that went in with them were sized to a price, not to a floor plan. Our technicians know what that looks like because we see it every week in subdivisions off Macland Road, in the neighborhoods east of 61, and throughout the 30132 and 30157 zip codes. We do not do like-for-like swaps without checking whether the original system was undersized in the first place.
The Kingswell Way governs every job we do in Dallas. That means a written price handed to you before a single tool comes out, a firm arrival window, a clean job site, and a guarantee that puts the promise on paper. If an AC installation issue surfaces within 365 days, we come back and correct the work at no charge. Victor Mancini leads our team, and he insists on that standard for every Dallas customer, every time.
When you call, a live person answers, 24 hours a day, seven days a week. No voicemail tree, no waiting until morning. If your AC quits during a Dallas heat wave, that matters.
Styles & brands we work with
HVAC Installation in Dallas
HVAC Installation in Dallas means more than unboxing a new condenser and reusing whatever ductwork is already in the attic. In the tract-home subdivisions that define much of Dallas’s housing stock, the original system was frequently a half-ton or full ton too small, the duct runs were never sealed properly, and the condensate line sat in soil that has shifted since the slab was poured. A correct install addresses all three, or the new unit quietly fails early. Most complete HVAC installations in Dallas run between $3,500 and $7,500, depending on the system size, efficiency rating, and how much ductwork correction is needed.
Ductwork Assessment and Sealing
Older Dallas homes lose a surprising amount of cooled air into the attic. We measure static pressure and inspect every accessible duct run before sizing the new system, because a 16-SEER unit attached to leaky ducts behaves like an 11-SEER unit and still leaves hot rooms upstairs.
Manual J Load Calculation
We do the math on every Dallas install: square footage, window area, orientation, insulation depth, and the actual number of occupants. That calculation tells us the right tonnage. Guesswork is how you end up with a 2-ton system in a house that needed 3 tons, which is a common story in 1990s Dallas subdivisions.
Heat Pump Installation in Dallas
Heat Pump Installation in Dallas is a practical choice for the area’s climate, because a heat pump handles both cooling and heating in a single unit, which suits the humid subtropical weather pattern Dallas sits in. Winters here are usually mild, but cold snaps between December and February can freeze a poorly protected outdoor unit in slab-built homes, so placement and elevation matter. A correctly sized and installed heat pump in Dallas runs the same $3,500 – $7,500 range as a traditional AC, and it removes the need for a separate furnace in most homes.
Matching Heat Pumps to Dallas Slab Homes
Many Dallas homes sit on slab foundations with ductwork running through the attic. That is a fine setup for a heat pump, provided the ducts are sealed and the outdoor unit sits on a stable pad. Clay-heavy soil in parts of Dallas shifts slightly over time, which is why we re-level pads and re-pitch condensate lines as a standard part of the job.
SEER2 and Regional Efficiency
New efficiency standards apply to systems manufactured after January 2023. For Dallas homeowners, SEER2 ratings between 14.3 and 16.2 usually deliver the best balance of upfront cost and summer utility savings, especially when the system is paired with a properly sealed duct network.
Trusted Brands We Service in Dallas
Our Dallas customers often ask whether we work on the brand already in their home. We do. Our technicians train on Trane, Lennox, Goodman, and Rheem equipment, among others, and we keep common parts stocked for fast turnaround in the Dallas area. If you have a 2007 Goodman that finally gave up, we can match the replacement to your existing line set or upgrade it properly, whichever the job actually calls for. No brand loyalty games. No upselling you into a name you do not need.
See the difference
Before
After
Before
After
Before
AfterCommon AC Installation Problems We See in Dallas Homes
- Undersized builder-grade systems. Subdivisions built in Dallas during the 1990s and 2000s often received the smallest unit that would pass code, which is why some rooms have never cooled evenly. A like-for-like swap copies the mistake instead of fixing it.
- Leaky attic ductwork. In slab-built Dallas homes, ducts run through a hot attic. When those ducts leak 25% or 30% of the air before it reaches the living space, the new system’s efficiency drops and rooms at the end of the line stay warm.
- Condensate lines that back up in summer. Dallas’s clay-heavy soil shifts slightly over time, knocking drain lines off slope. The result is a recurring summer backup and a wet air handler, even on a brand-new installation if the line is not re-pitched.
- Electrical panels short on capacity. Many faster-built Dallas homes have panels with little headroom for a modern variable-speed system’s startup load. Skipping the panel check leads to nuisance breaker trips and frustrating service calls after the install is done.
Pricing for AC Installation in Dallas, GA
What should a Dallas homeowner expect to pay for a new AC system? The honest range is $3,500 to $7,500. The final number depends on the system’s size in tons, its SEER2 efficiency rating, whether it is a straight AC or a heat pump, and how much ductwork correction the house needs. In Dallas specifically, proper duct sealing and condensate re-pitching are often part of the quote, because skipping them causes the problems we described above. Here are the line-item ranges for what we install in Dallas:
| Service | Typical Dallas Price Range |
|---|---|
| AC Installation | $3,500 – $7,500 |
| Heat Pump Installation | $3,500 – $7,500 |
Every quote we give in Dallas is written and fixed before the work starts. Call (762) 240-5599 and we will send a technician to your home, do the load calculation, inspect the ductwork and panel, and hand you a price on paper. The estimate is free.
We Also Serve Cities Near Dallas
Our crews cover Dallas and the surrounding west-metro area. We regularly install AC in Powder Springs, Mableton, Kennesaw, and Acworth, so if you live just over the county line, you get the same written pricing and the same 365-Day Done Right Promise. You can learn more about our full AC Installation service across the region, including what to expect on install day.
Serving Dallas, GA - Our Local Coverage Area
We’re based in the Dallas 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 Dallas
A new system should not back up, and when it does in Dallas, the usual cause is a drain line that has lost its slope because the clay-heavy soil under the slab settled. We re-pitch the line as part of every install here, and if yours was not re-pitched by a previous installer, that is the first thing we check. Call (762) 240-5599 and we will inspect it.
Yes, a heat pump works well in a 1990s Dallas home, but only if the original ductwork is sealed and the load calculation is done correctly. Heat pumps run longer cycles at lower output, which means leaky ducts hurt their performance more than they hurt a standard AC. We assess the ducts before recommending a heat pump.
Look for a panel that is already full, breakers that trip during summer storms, or an older panel rated below 200 amps. Many Dallas homes built quickly in the 1990s have panels with little spare capacity for a modern high-efficiency system’s startup draw. We check the panel during the estimate and tell you if an upgrade is needed, with the cost included in the written quote.
That pattern usually points to leaky ductwork in the attic or an undersized system, both of which are common in Dallas split-levels from the 1990s build era. A new unit installed without duct sealing or a proper load calculation will run constantly and still leave the upstairs warm. The fix is sealing the ducts and resizing the system, not turning the thermostat lower.
SEER2 is the updated efficiency rating that replaced SEER for new equipment in 2023, and it measures how much cooling you get per watt of electricity. For Dallas summers, a SEER2 rating of 14.3 to 16.2 keeps utility bills reasonable without a big price jump, and it qualifies you for any current rebates. We will explain the numbers in plain English during your estimate.
Written by Victor Mancini, Owner at Cold Harbour Heating and Air Marietta, serving Dallas and the surrounding west-metro area.