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 Lewisville, TX
Dalton Heating & Air handles HVAC work in Lewisville, TX with written pricing before any work starts and a full-year written guarantee on every repair. Lewisville’s mix of 1970s and 1980s ranch homes, newer construction along the 121 corridor, and clay-heavy soil means systems here fail in predictable ways: compressors straining through 100-degree Julys, condensate lines clogging with mineral buildup, and heat pumps cycling hard through shoulder seasons. You’ll get a live person on the phone at (361) 306-9515 any hour, and a background-checked technician who arrives inside the stated window.
Why Lewisville Homes Are Different
Lewisville sits on the eastern edge of the Eastern Cross Timbers, and the soil shifts. Homes in neighborhoods like The Vistas of Lewisville, Garden Ridge, and Indian Oaks sit on expansive clay that moves with moisture levels, which means slab foundations flex and refrigerant lines, duct runs, and condensate drains take stress they wouldn’t elsewhere in the metro. We see cracked drain pans and pinched line sets in Lewisville more than in neighboring Flower Mound or Coppell, where soil composition differs.
The housing stock drives most of the difference. Original equipment in many 1980s Lewisville homes was sized for the construction standards of that era: single-pane windows, less attic insulation, fewer returns. When we replace a system in those houses, the conversation often includes airflow improvements, not just a box swap. Meanwhile, newer developments off FM 1171 and around Lake Park tend to have two-stage and variable-speed equipment that needs different diagnostic approaches. And Lake Lewisville’s humidity influence means coil corrosion and mold in drain pans show up more often on the lake side of town.
Our Main Lewisville Services
Three jobs dominate Lewisville calls: dead compressors in summer, furnace breakdowns in winter, and heat pump changeouts in between. Each has its own page with pricing and what to expect.
AC Repair in Lewisville
When a Lewisville AC fails in July, the issue is usually one of three things: a capacitor that gave out, a contactor that welded itself shut, or a refrigerant leak that’s been building for months. The clay soil and slab movement here can make refrigerant lines rub against framing, so small leaks are more common than full compressor failures. We diagnose down to the part, put the price in writing, and complete most AC Repair in Lewisville calls the same day. The repair is guaranteed in writing for a full year; if it fails in that time, we return at no charge.

Heat Pump Installation in Lewisville
Lewisville’s winters are mild enough that heat pumps make real sense here, especially in homes without gas lines or in additions and sunrooms. The catch is sizing: a heat pump that’s oversized will short-cycle in spring and fall, which coats the coil and shortens compressor life. We run load calculations that account for Lewisville’s summer humidity and the heat gain off Lake Lewisville before recommending a Heat Pump Installation in Lewisville. You get a written fixed price and a set install date, not a crew that fits you in between jobs.

Furnace Repair in Lewisville
Lewisville’s winter nights drop below freezing often enough that a dead furnace is an urgent call, not a comfort preference. Gas furnaces here tend to fail on igniters, flame sensors, and draft inducer motors more than heat exchangers, though 20-year-old units in original-owner homes are at the point where repair-versus-replace is an honest conversation. Our Furnace Repair in Lewisville service includes a written diagnosis, a written guarantee, and no overtime charge for after-hours calls in winter weather.

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
We’re factory-trained on nine major residential HVAC brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. Most Lewisville homes have Trane, Lennox, Goodman, or Rheem equipment. We stock common parts locally for those four, which means most repairs finish in one visit. See our brands for the full list.
Pricing for HVAC Company in Lewisville, TX
| Service | Typical range in Lewisville |
|---|---|
| AC repair | $150 – $650 |
| Furnace repair | $150 – $700 |
| AC installation | $3,500 – $7,500 |
| Tune-up | $80 – $200 |
| Capacitor replacement | $150 – $300 |
| Contactor replacement | $150 – $300 |
| Refrigerant recharge | $200 – $650 |
| Thermostat replacement | $150 – $350 |
| Condensate drain clearing | $150 – $300 |
| Flame sensor cleaning/replacement | $150 – $300 |
| Igniter replacement | $200 – $400 |
| Draft inducer motor replacement | $300 – $700 |
What pushes a Lewisville job toward the upper end: refrigerant leaks that require finding and repairing the source, not just topping off, and older units where parts are no longer in common stock. What never changes is this: the price is in writing before any work starts, and the repair is guaranteed in writing for a full year. No exceptions, no add-ons at the door.
Neighborhoods We Serve in Lewisville
We cover the entire city, from the 75067 side near Vista Ridge Mall up through 75077 and the newer developments east of I-35E. Response time across Lewisville is typically same-day for repair calls when you call before 2 p.m.
- The Vistas of Lewisville
- Garden Ridge
- Indian Oaks
- Lakeview Estates
- Castle Hills
Service Area – Cities Near Lewisville
Our Lewisville crews move through the surrounding cities daily. Homeowners in Lake Dallas, TX, Coppell, TX, The Colony, TX, and Flower Mound, TX get the same written pricing and the same full-year written guarantee on every repair. Dispatch and scheduling are coordinated from the Dallas-Fort Worth office while crews serve Lewisville locally.
Serving Lewisville, TX - 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
Same-day for most repair calls placed before 2 p.m. After-hours and winter no-heat calls are treated as emergencies, with no overtime charge added to the repair price. Call (361) 306-9515 and a live person picks up, 24/7.
For repairs, usually not. For system replacements and new installations, Lewisville’s permitting rules apply, and we handle the paperwork as part of the fixed quote. Nothing gets charged without a written price first.
Yes, including homes east of I-35E, the 75077 ZIP, and the Lake Lewisville side of town. If the job needs a part we don’t have on the truck, we source it locally the same day in most cases.
Call (361) 306-9515 for a free estimate. Lewisville pricing is upfront, in writing, and 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 Lewisville 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.







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