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.
Before
After
Before
After
Before
AfterHVAC Company in Lewisville, WA
Coldharbour Heating & Air dispatches technicians to Lewisville from our Seattle coordination office, with crews arriving same-day for most repair calls at (817) 402-2972. Lewisville’s lakeside position next to a 29,000-acre reservoir creates humidity loads that corrode coils and overwhelm drain lines faster than in landlocked DFW suburbs, while its 1980s-90s building stock means we’re replacing end-of-life R-22 systems and degraded flex duct on a daily basis. Our written price, firm arrival window, and 365-Day Done Right Promise apply to every job.
Why Lewisville Homes Are Different
Lewisville sits in a narrow corridor where North Texas heat collides with lake-driven humidity. From June through September, ambient moisture stays elevated above what Carrollton or Flower Mound experience, forcing air conditioners to work harder on latent load (removing moisture, not just dropping temperature). That same moisture accelerates evaporator coil corrosion and condensate drain pan failure, especially in neighborhoods south and west of the lake shore where the marina corridor catches prevailing winds off the water.
The housing stock compounds the strain. Most Lewisville homes went up during the I-35E suburban surge of the 1980s and 1990s, slab-on-grade construction with flex duct routed through attics that exceed 140°F in July. Original ductwork was often undersized for the thermal load, and thousands of systems still run on R-22 refrigerant, which was phased out of production in 2020. When these units fail, repair refrigerant costs alone can make replacement the practical choice.
Winter brings its own pattern. The February 2021 ice storm froze condensate lines and knocked out heat pumps across Lewisville. Homes with aging furnaces and compromised ductwork saw uneven heating that stressed components already near end of life. We still get calls from homeowners who patched through that event and are now facing the accumulated wear.
Our Main Lewisville Services
Most calls we field from Lewisville homeowners fall into three categories: cooling repair, heating repair, and full system replacement.
AC Repair in Lewisville
AC repair in Lewisville centers on three recurring problems: corroded evaporator coils from lake-humidity exposure, clogged condensate drains overwhelmed during summer moisture spikes, and low refrigerant in aging R-22 systems. Our technicians carry replacement coils, drain line components, and the tools to handle both legacy refrigerant and modern R-410A conversions. Every repair comes with a written price before work starts and our 365-Day Done Right Promise. AC Repair in Lewisville
Furnace Repair in Lewisville
Furnace repair in Lewisville ranges from failed igniters and flame sensors on 1990s units to heat-exchanger cracks in systems that cycled heavily through the 2021 freeze. We inspect ductwork during every heating call, because the same flex duct baking in summer attics develops leaks that rob efficiency in winter. If we find a safety issue, we explain it plainly and give you a written repair price with no pressure. Furnace Repair in Lewisville
AC Installation in Lewisville
AC installation in Lewisville often involves more than swapping the outdoor unit. We size replacement systems using Manual J load calculations that account for the lake’s humidity contribution, and we inspect attic ductwork for leaks, collapses, and insulation degradation. Many Lewisville homes benefit from duct sealing or partial replacement as part of the install. We give a fixed written price, schedule a firm install date, and handle rebate paperwork. AC Installation in Lewisville
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 Lewisville
Our technicians are trained to service nine major residential HVAC brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. We stock common capacitors, contactors, igniters, and flame sensors for Trane, Lennox, Goodman, and Rheem systems locally, which means most Lewisville repair calls finish in a single visit. See our brands for full coverage details.
Pricing for HVAC Company in Lewisville, WA
| Service | Typical Range in Lewisville |
|---|---|
| AC Repair | $150-$650 |
| Furnace Repair | $150-$700 |
| AC Installation | $3,500-$7,500 |
| Tune-Up | $80-$200 |
Prices in Lewisville trend toward the higher end of these ranges when we’re dealing with lake-corroded coils, collapsed flex duct in hot attics, or R-22 systems requiring refrigerant recovery and line-set replacement. Whatever the scope, you get a written price before any work begins, and that number does not change when the technician is at your door.
Neighborhoods We Serve in Lewisville
Our Lewisville coverage runs from the lakefront corridor through the established subdivisions east of I-35E. Most neighborhoods see same-day arrival for repair calls scheduled before noon.
- Castle Hills
- The Highlands
- Lewisville Valley
- Old Town Lewisville
- Valley Vista
Service Area – Cities Near Lewisville
We dispatch technicians to Lewisville from our Seattle coordination office, with regular service also available in Seattle, WA, Spokane, WA, Tacoma, WA, and Vancouver, WA. Scheduling and routing are handled centrally; the crew that arrives at your Lewisville home is local to the DFW area and knows the lake’s effect on residential systems firsthand.
Serving Lewisville, WA - Our Local Coverage Area
We’re based in the Lewisville 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 Lewisville
We answer calls live 24 hours a day, and most Lewisville repair requests placed before noon receive same-day service. After-hours emergency calls are dispatched immediately to the on-call technician. Call (817) 402-2972 to confirm today’s availability.
Most AC installation and furnace replacement projects require a city permit, which we pull and schedule as part of the job. Simple repairs and tune-ups typically do not. We’ll tell you exactly what’s needed when we give you the written price.
Yes. We regularly work in lakeside neighborhoods and understand the accelerated coil corrosion and drain-line issues that come with the humidity exposure. The same written price, firm arrival window, and 365-Day Done Right Promise apply regardless of your proximity to the water.
Call Coldharbour Heating & Air at (817) 402-2972 for a free estimate. A live person will answer, day or night, and we’ll give you a written price before any work begins.
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 Lewisville Customers Say
"Honest to a fault. Two companies told me I needed a whole new unit. Coldharbour said mine had years left and just needed a cleaning and a part. Saved me thousands."
- Marcus Reilly"Furnace wouldn't light the first cold morning. The guy walked me through what he was checking so I actually understood it. Replaced the igniter, wrote up the warranty, and it's been warm since."
- Alicia Romero"AC died overnight with a newborn in the house. They bumped us up the list and had it running by noon. I about hugged the guy. Fair price even on a rush call."
- Celeste Ngo