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.
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AfterFast, Reliable AC Installation Across Keller
AC installation in Keller typically runs $3,500-$7,500 for a complete system, and most jobs involve two units because Keller’s large two-story homes are built with dual-zone cooling. We’re Coldharbour Heating & Air, and our AC Installation team serves Keller from our Dallas-Fort Worth dispatch office, with crews in North Tarrant County daily. You can reach us at (817) 402-2972 any hour, any day, and a live person will answer. We don’t do voicemail trees.
Keller isn’t a generic suburb. The homes here, mostly built between 1993 and 2008, are big brick two-stories on slab foundations, and they were originally fitted with R-22 refrigerant systems that are now 20 to 25 years old. That means the replacement wave hitting neighborhoods like Bloomfield, Hidden Lakes, and the corridors off Keller-Smithfield Road isn’t a one-off repair call. It’s a whole-housing-stock event. We know the local failure patterns, the slab-movement issues that crack attic plenums, and the electrical panel upgrades these installs often need. That local knowledge changes what we find when we walk through your door, and it changes the price we quote before a single tool comes out.
Why Coldharbour Heating & Air Is Keller’s Preferred AC Installation Company
We’ve been part of the Kingswell network since 2003, independently owned and operated, and we’ve built our reputation in North Tarrant County on four written promises: a price before the work starts, a firm arrival window, a clean job site, and our 365-Day Done Right Promise. If a repair fails inside a full year, we come back and correct it at no charge. That guarantee is written down before our technician leaves, not offered as a verbal afterthought.
Homeowners in Keller tell us the same story. They scheduled a company that never showed in the window, or the price jumped when the truck arrived, or the repair quit in six weeks and the phone went to voicemail. We don’t operate that way. Our technicians are background-checked and uniformed. Our phones are answered by a live person 24 hours a day, 7 days a week. And we’re trained on nine major residential HVAC brands, Goodman, Rheem, York, and Daikin included, so the technician who arrives can work on whatever system is already in your home.
Dispatch and scheduling run from our Dallas-Fort Worth office, but our crews live and work in this area. We know Keller-Smithfield Road at rush hour. We know which Bloomfield streets dead-end and which don’t. That matters when we’re giving you a firm arrival window, and it matters when we’re sizing a dual-zone system for a 4,000-square-foot brick home that was built before SEER2 ratings existed.
Central Air Conditioning Installation in Keller
Central Air Conditioning Installation in Keller is almost never a single-system job. The typical home here is a 3,000-5,000 square foot two-story built between 1993 and 2008, and the original builder installed dual-zone cooling with an attic-mounted air handler upstairs and a closet or utility-room unit downstairs. When that original R-22 equipment reaches end of life, as most of it now has, replacing it means two condensers, two coils, and often significant ductwork repair. A typical Central Air Conditioning Installation in Keller runs $3,500-$7,500 per system, with most homes needing both.
Load Calculation Before Tonnage Selection
The original equipment in these homes was sized by rule of thumb, not by manual J load calculation. That means a like-for-like swap, matching the old tonnage to the new, often leaves the new system fighting a floor plan it was never properly sized for. We run a fresh load calculation on every install. The result is sometimes a half-ton different from the original, and the difference shows up in even cooling and lower utility bills.
Attic Platform and Plenum Inspection
The upstairs air handler in a Keller home hangs in the attic, and North Tarrant County’s expansive black-clay soil, locals call it black gumbo, swells and shrinks with seasonal wet-dry cycles. Over two decades, that slab movement shifts the attic platform and stresses the supply plenum connection. We’ve found platforms that have dropped an inch, and plenums that have separated enough to dump 30% of conditioned air into the attic while the equipment tests fine on gauges. New equipment on a failed platform just fails again.
Furnace Installation in Keller
Furnace Installation in Keller follows the same dual-system pattern as cooling. The original gas furnaces paired with those R-22 air conditioners are the same age, and they’re often mounted on the same shifted platforms, connected to the same compromised ductwork. A typical Furnace Installation in Keller runs $3,500-$7,500, and like cooling, most homes need two. We don’t recommend replacing one half of a paired system and leaving the other to fail on its own timeline.
Heat Pump and Dual-Fuel Options
Some Keller homeowners are moving to heat pump or dual-fuel configurations, especially with federal rebate programs active. A heat pump installation replaces both the AC condenser and the gas furnace with a single outdoor unit and air handler, but the electrical demand is higher. We check panel capacity before quoting that path, because a 1990s-era 150-amp panel often can’t handle the load without an upgrade.
Electrical Panel Assessment
Modern high-SEER2 equipment and heat pumps draw more current than the systems they replace. On a recent job near Hidden Lakes, we found the original panel had no open breaker slots and the main bus was already at 80% rated load with the existing appliances. We brought in a licensed electrician, coordinated the panel upgrade with our furnace installation, and had both trades done in the same day. The homeowner didn’t have to manage two contractors and two schedules.
Trusted Brands We Service in Keller
Our technicians are trained to service and install nine major residential HVAC brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. We stock common parts for Goodman, Rheem, York, and Daikin locally, which means faster turnaround when a Keller homeowner needs a repair on an existing system or a matched component on a new install. We don’t push one brand over another. We size the system to the house, then recommend the equipment line that fits the budget and efficiency goals. Every option comes with a written price before work begins and our 365-Day Done Right Promise on every repair.
Common AC Installation Problems We See in Keller Homes
- Original R-22 equipment at end of life. The refrigerant was phased out of production in 2020, and reclaimed supplies are increasingly expensive and unreliable. Recharging a 25-year-old system is a short-term patch at best. Most Keller homes are past the point where repair makes financial sense.
- Attic plenum separation from slab movement. The black gumbo soil beneath Keller swells in wet seasons and shrinks in drought, shifting slab foundations and the attic platforms above them. The supply plenum cracks or pulls away from the air handler, and conditioned air dumps into the attic while the homeowner pays to cool it.
- Single-zone thinking applied to dual-zone homes. Some contractors quote one system when the house clearly needs two, or they match old tonnage without a fresh load calculation. The result is an upstairs that never reaches setpoint and a compressor that runs continuously in July.
- Electrical panels that can’t support modern equipment. A 1990s panel with no open slots and dated bus capacity can’t accept the circuits required for a heat pump or high-SEER2 dual-system install. We catch this in the estimate phase, not on installation day.
Pricing for AC Installation in Keller, TX
We’re upfront about numbers because The Kingswell Way says the price comes before the work, not after. Here’s what we see in the Keller market:
| Service | Typical Range in Keller |
|---|---|
| AC Installation | $3,500-$7,500 |
| Furnace Installation | $3,500-$7,500 |
| AC Repair | $150-$650 |
| Furnace Repair | $150-$700 |
| Tune-Up | $80-$200 |
Most Keller homes need two systems, so a complete dual-zone replacement typically falls in the $7,000-$15,000 range depending on tonnage, SEER2 rating, and whether ductwork or electrical work is required. Factors that move the number: attic platform rebuild, plenum replacement, panel upgrade, and the efficiency tier you select. We don’t guess at your price. We visit, measure, inspect the ductwork and electrical, and hand you a written fixed price before any work begins. Estimates are free. Call (817) 402-2972 to schedule.
We Also Serve Cities Near Keller
Our crews work throughout North Tarrant County, and we regularly install systems in Keller, Haslet, North Richland Hills, Roanoke, and Southlake. The housing stock and soil conditions vary by city, and we adjust our inspections accordingly. A home in older Southlake may have different ductwork and foundation issues than a 2005 build in Roanoke. We know the difference because we’re in these neighborhoods every week.
Serving Keller, TX - Our Local Coverage Area
We’re based in the Keller 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 Keller
In most cases, yes. Keller’s dual-zone homes were built with matched pairs, and when one system is 20-25 years old, the other is the same age and running on the same refrigerant. Replacing one and leaving the other means you’ll pay for a second install call, a second permit, and a second disruption to your schedule within a few years. We quote both together so you know the full scope upfront. Call (817) 402-2972 for a free estimate on a complete replacement.
It often is, but not the equipment itself. On a Bloomfield two-story with a 4-ton Carrier upstairs and a 3-ton downstairs, both from the original build, the homeowner had paid for three tune-ups over two summers and still had a hot second floor. Our tech found the upstairs supply plenum had separated from the air handler - a two-decade slab-movement issue, not an equipment failure - so the gauges read fine while roughly 30% of conditioned air was dumping into the attic, and the 25-year-old R-22 condenser coils weren’t worth recharging again. We replaced both systems, resealed and re-supported the attic platform, rebuilt the plenum connection, and ran a manual J load calculation before choosing tonnage and SEER2 ratings, because the original equipment had been sized by rule of thumb for a floor plan that never balanced.
No. Matching the old tonnage without a fresh load calculation just repeats the original mistake. Keller’s large two-story homes were built with equipment sized by builder rule of thumb, not by actual heat gain calculation. A like-for-like swap on a 4,000-square-foot dual-zone home often leaves the new system undersized for the real load, especially if you’ve added insulation, windows, or a patio cover that changes the original assumptions. We run manual J on every install. Call (817) 402-2972 to schedule a proper sizing evaluation.
Sometimes. Modern high-SEER2 equipment and any heat pump option draw more current and require dedicated circuits that a 1990s-era panel may not have capacity to support. We inspect your panel as part of our pre-install evaluation and coordinate any necessary electrical upgrade with our own schedule. You won’t be left finding your own electrician or discovering the issue on installation day. We’ll tell you in the written estimate if panel work is needed.
A single system runs $3,500-$7,500, and most Keller homes need two. The total project typically falls between $7,000 and $15,000 depending on tonnage, efficiency rating, and whether we need to rebuild attic platforms, replace plenums, or upgrade electrical. We don’t give ballpark numbers over the phone that change at the door. Our written estimate, delivered before any work begins, is the price you pay. Estimates are free. Call (817) 402-2972 to schedule yours.
Ready to replace the aging systems in your Keller home? Call Coldharbour Heating & Air at (817) 402-2972. A live person will answer, we’ll set a firm arrival window, and you’ll have a written price in hand before any work starts. Every repair is backed by our 365-Day Done Right Promise, guaranteed in writing.
Written by Victor Mancini, Owner at Coldharbour Heating & Air, serving Keller and North Tarrant County since 2003.