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 Lakeway, TX
Coldharbour Heating & Air handles AC repair, furnace repair, and AC installation for Lakeway homes, with most repair calls answered same day and crews dispatched from our Austin office. Lakeway’s unique mix of 1960s lake-vacation cottages and modern hillside custom builds means no two jobs are alike; we size every solution to the house that’s actually in front of us. Call (817) 402-2972 and a live person picks up, 24 hours a day.
Why Lakeway Homes Are Different
Lakeway was platted in 1963 as a Hill Country lake-resort community, so its oldest homes near Lake Travis were built as occasional-use vacation retreats with minimal HVAC. Those systems are now expected to condition full-time luxury residences with soaring ceilings and open great rooms they were never sized for. In The Hills of Lakeway and Rough Hollow, we regularly find original ductwork rated for 1,200 square feet trying to push air through 4,000-square-foot renovated spaces.
Layered on top, the post-2000 custom-home boom produced thousands of large hillside builds, often 3,500-6,000 square feet, cantilevered over steep limestone terrain. Multi-directional solar exposure, dramatic ceiling heights, and the near-impossibility of straightforward duct routing demand load calculations and multi-zone designs far more complex than anything in flat suburban Austin.
Lakeway’s position on Lake Travis creates a localized humidity microclimate, particularly for waterfront and near-water properties, that strains dehumidification capacity during peak summer even compared to inland Austin neighborhoods. The Hill Country elevation also leaves homes more exposed to sharp freeze events that the original vacation-home construction stock handles poorly. And December through February, Ashe juniper pollen season, centered on the Hill Country and among the heaviest in the US, drives a concentrated annual surge for MERV filter upgrades and air-purification systems that a tech working even 15 miles east in Pflugerville would rarely encounter at the same volume.
Our Main Lakeway Services
Most calls we get from Lakeway fall into three categories: cooling repair during the long Texas summer, heating repair when a cold snap hits the Hill Country, and full system replacement when age or renovation outpaces the original equipment.
AC Repair in Lakeway
We repair central air conditioners, heat pumps, and ductless mini-splits throughout Lakeway, from original 1970s condensers in old lake cottages to modern variable-speed systems in The Hills. The humidity microclimate off Lake Travis means we see more frozen evaporator coils and overwhelmed dehumidification than inland crews do. Our trucks stock capacitors, contactors, and refrigerant for same-day resolution on most calls. AC Repair in Lakeway covers our full diagnostic and repair process.

Furnace Repair in Lakeway
Heating repair in Lakeway means gas furnaces, heat pumps in defrost mode, and occasional electric strip-heat failures. The sharp freeze events that roll through the Hill Country stress heat exchangers and ignition systems hard, especially in original vacation homes where the furnace was an afterthought. We check carbon monoxide levels on every gas furnace call and test heat-pump defrost cycles before we clear the job. Furnace Repair in Lakeway has the details.

AC Installation in Lakeway
New system installation in Lakeway is rarely a simple swap. Hillside lots with limestone outcroppings, multi-zone requirements for homes with 20-foot ceilings, and duct routing that sometimes requires custom fabricated transitions all factor into our load calculations. We size to ACCA Manual J standards and specify equipment matched to the house, not the budget of a previous decade. AC Installation in Lakeway explains our process and pricing.

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 Lakeway
Our technicians train on nine major residential HVAC brands, and we carry common parts for Trane, Lennox, Goodman, and Rheem on our Lakeway-area trucks. Most repairs that don’t require a factory-ordered component finish in one visit. See our brands for the full list.
Pricing for HVAC Company in Lakeway, TX
| Service | Typical range in Lakeway |
|---|---|
| AC Repair – minor (capacitor, contactor, fuse) | $150-$350 |
| AC Repair – moderate (refrigerant leak, coil repair) | $350-$650 |
| Furnace Repair – minor (igniter, flame sensor, thermostat) | $150-$300 |
| Furnace Repair – major (heat exchanger, blower motor) | $300-$700 |
| AC Installation – standard replacement | $3,500-$5,500 |
| AC Installation – high-efficiency or complex duct | $5,500-$7,500 |
| Seasonal Tune-Up | $80-$200 |
What pushes Lakeway jobs toward the higher end: multi-zone designs, custom duct fabrication for hillside builds, and equipment sized for homes with ceiling heights well above standard eight-foot construction. We hand you a written price before any work begins, and that number does not change at the door.
Neighborhoods We Serve in Lakeway
We run calls across the full Lakeway city limits and into the surrounding Hill Country, with most appointments scheduled within a two-hour arrival window. Crews dispatched from our Austin office typically reach Lakeway properties in 35-50 minutes depending on traffic on RM 620 and FM 2222.
- The Hills of Lakeway
- Rough Hollow
- Serene Hills
- Lakeway Highlands
- Waterfront estates along Lake Travis
Service Area – Cities Near Lakeway
Our service radius extends throughout the Austin metro and into surrounding communities. We also run calls in Houston, TX, San Antonio, FL, Dallas, GA, and Fort Worth, TX through the Kingswell network of independently operated HVAC businesses.
Serving Lakeway, TX - Our Local Coverage Area
We’re based in the Lakeway 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 Lakeway
Most repair calls from Lakeway are scheduled same day, with crews reaching your property in 35-50 minutes from dispatch. A live person answers our phones 24 hours a day, 7 days a week, including holidays. Call (817) 402-2972 to check current availability.
Many Lakeway neighborhoods, particularly in The Hills and Rough Hollow, have architectural review committees that require approval before exterior equipment changes. We provide the technical specifications and setback drawings your HOA needs, but we recommend starting that approval process before scheduling installation.
Yes. We cover waterfront properties along Lake Travis, homes in the surrounding unincorporated Hill Country, and adjacent communities. The same pricing, written guarantees, and arrival windows apply regardless of whether your address carries a Lakeway city designation.
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 Lakeway Customers Say
"The repair was done well and quickly. Scheduling over the phone was a little clunky and I got transferred twice, but the tech himself was great and on time."
- Brett Haygood"Furnace was short cycling all winter. They diagnosed a bad sensor instead of condemning the whole unit like I feared. Cheap fix, honest call."
- Russ Tiedemann"Thermostat and a weak blower. Fixed both in one visit, explained the guarantee, and didn't leave a mess. I've already recommended them to my neighbor."
- Natalie Esposito







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