Furnace & heating
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Diagnosis first, numbers second - you approve the repair price before a single part goes in.
Get your free estimateFast, Reliable Furnace Repair Across Preston Hollow
Furnace repair in Preston Hollow typically runs $150 – $700, and most jobs are completed the same day we diagnose them. We know the homes here: the sprawling 1950s ranches off Royal Lane, the newer custom builds near Strait Lane, the flat-roofed estates tucked behind mature oaks. When your heat quits in January, you need someone who already understands how these houses work. Call (430) 213-5796 and a live person answers, day or night.
Why Cold Harbour Heating and Air Dallas Is Preston Hollow’s Preferred Furnace Repair Company
We’ve been repairing furnaces in Preston Hollow long enough to know that a run-of-the-mill fix often isn’t the fix at all. The neighborhoods around Preston Road and Strait Lane are filled with custom homes where ductwork runs through unconditioned attics that cook all summer long. That changes how furnaces fail, and it changes how they need to be repaired. Our Furnace Repair team arrives with that local knowledge already in hand, not learning it on your dime.
Homeowners in Preston Hollow consistently tell us the same thing: they’ve had companies show up late, quote one price, then change it at the door. Victor Mancini, who leads Cold Harbour Heating & Air, built the company’s reputation on the opposite approach. The Kingswell Way means a written price before any tool comes out, a firm arrival window, and a written guarantee on every repair. If a repair fails within 365 days, we come back and make it right at no charge. That guarantee is in writing, every time.
Our technicians are background-checked, uniformed, and trained to service nine major residential HVAC brands, so whoever walks through your door in Preston Hollow already knows your system. And when you call at 2 a.m. with a furnace that won’t light, a live person picks up. No voicemail, no “we’ll call you back in the morning.”
Styles & brands we work with






Boiler Repair in Preston Hollow
Boiler repair in Preston Hollow isn’t something every HVAC company handles well, and that’s exactly why we do. A number of older estate homes here still run on hydronic heat, with original cast-iron radiators or in-floor loops, and those systems need a different set of eyes than a forced-air furnace. When a Preston Hollow boiler starts short-cycling, banging, or leaving certain rooms cold, the culprit is often air in the lines, a failing circulator pump, or a zone valve that stopped opening. Costs generally fall between $150 and $700 depending on the specific fault.
Circulator Pump and Zone Valve Work
Older boiler systems in Preston Hollow commonly use multiple zone valves to direct heat to different wings of the house. When one valve sticks, that wing goes cold while the rest of the house stays warm. We test the valve motor, check the wiring, and replace the unit if it’s seized, usually on the first visit.
Hydronic Air Purging and Pressure Correction
Air trapped in the lines causes gurgling, uneven heat, and strain on the pump. We purge the system, check the expansion tank, and set the fill pressure to match the home’s loop height so every radiator in your Preston Hollow home gets hot water, not just the ones closest to the boiler.
Gas Furnace Repair in Preston Hollow
Gas furnace repair in Preston Hollow almost always starts with a question the homeowner hasn’t considered: what’s your attic temperature doing right now? In this neighborhood, attics routinely exceed 140°F in summer, and that heat bakes flex duct until it sags and kinks. When winter comes and the furnace fires up, that damaged duct raises static pressure until the unit overheats and trips the limit switch. To a homeowner, it looks like the furnace is broken. Often, the real problem is airflow, not the furnace itself. Repairs typically run $150 to $700 depending on what’s actually failed.
Ignitor and Flame Sensor Replacement
A furnace that clicks but won’t light usually has a failed hot surface ignitor, while a furnace that lights and immediately shuts off often has a dirty flame sensor. Both are common calls across Preston Hollow, and both are jobs we complete in one visit with parts stocked on the truck.
Limit Switch and Overheating Diagnostics
When a furnace trips the high-limit switch, the root cause is rarely the switch. Restricted airflow from sagged duct or a clogged filter pushes internal temperatures up. We measure static pressure, inspect return sizing, and address the actual airflow problem instead of just resetting the switch and hoping it holds.
Trusted Brands We Service in Preston Hollow
We service Carrier, Trane, American Standard, and Bryant furnaces across Preston Hollow every week, along with five other major brands. Because they’re so common in this area, we keep replacement parts for these systems stocked locally, which means fewer return trips and faster repairs. Whether your home has a variable-speed Carrier Infinity, a two-stage Trane, or a straightforward Bryant single-stage, our technicians have the specific training and the right diagnostic equipment to work on it. We don’t try to sell you a new system just because we don’t know the one you have.
See the difference
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AfterCommon Furnace Repair Problems We See in Preston Hollow Homes
- Sagged flex duct from 140°F attics. Preston Hollow attics get brutally hot, and older flex duct eventually loses its shape. Once it kinks, airflow drops, static pressure climbs, and the furnace shuts down on limit. This gets misdiagnosed as a control board failure more often than we’d like to admit.
- Rust inside flat-roof furnace cabinets. Flat and low-pitch roofs on custom builds here let water seep into attic-mounted units. We’ve opened furnaces in Preston Hollow where the heat exchanger was rusting from the outside in, causing intermittent rollout and a musty smell whenever the blower ran.
- Multi-zone damper failure after power surges. High-end homes with zoned systems often lose damper calibration after a thunderstorm. One bedroom stays cold while another runs hot, and the furnace gets blamed for a problem that’s actually in the zone controls.
- Undersized returns on original 1950s and 1960s ductwork. Older Preston Hollow homes were built for smaller, less demanding furnaces. When a newer system is installed on original ductwork, the returns often can’t pull enough air, and the furnace labors. We measure and correct return sizing as part of any repair where airflow matters.
Pricing for Furnace Repair in Preston Hollow, TX
| Repair Type | Typical Price Range |
|---|---|
| Furnace Repair (general) | $150 – $700 |
| Ignitor Replacement | $150 – $280 |
| Flame Sensor Cleaning or Replacement | $120 – $220 |
| Gas Valve Repair | $250 – $500 |
| Blower Motor Repair | $300 – $650 |
| Heat Exchanger Inspection and Repair | $200 – $700 |
These are the ranges we see across Preston Hollow, from smaller split-levels near Walnut Hill to large estates off Strait Lane. The final price depends on the specific part, how involved the access is, and whether we need to address underlying airflow issues as part of the repair. You’ll get a written price before any work starts, and every repair carries our 365-Day Done Right Promise. Call (430) 213-5796 for a free estimate.
We Also Serve Cities Near Preston Hollow
While this page focuses on furnace repair in Preston Hollow, our crews also cover Dallas, Arlington, Irving, and Carrollton. You can learn more about our work across the metro area on our Preston Hollow service page. Wherever you are in the Dallas-Fort Worth area, the same written guarantee and upfront pricing apply.
Serving Preston Hollow, TX - Our Local Coverage Area
We’re based in the Preston Hollow 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 Furnace Repair in Preston Hollow
Short-cycling in Preston Hollow homes is frequently caused by restricted airflow from sagged flex duct in a 140°F attic, not by a dirty filter. When ducts kink, static pressure rises and the furnace overheats, tripping the high-limit switch and shutting down early. After a few minutes, it cools and fires again. We test airflow and inspect ductwork before replacing parts, because a new limit switch won’t fix a duct problem. Call (430) 213-5796 and we’ll trace the actual cause.
Yes. Any furnace repair we do in Preston Hollow includes checking zone dampers if your home has them. Multi-zone systems in larger homes here commonly lose calibration after a power surge, and a stuck damper can mimic furnace failure when one part of the house stays cold. We test damper position, verify the zone control board, and recalibrate everything as part of the service, not as a separate charge.
It’s common, but not normal, and it needs attention. Flat and low-pitch roofs on custom Preston Hollow builds allow water intrusion into attic-mounted furnace cabinets. That moisture rusts heat exchangers and evaporator coils from the outside, causing intermittent rollout, corroded wiring, and musty air. If we find rust during a repair, we’ll show you exactly where the water is getting in and what it will take to stop it.
Weak airflow in older Preston Hollow homes usually points to undersized returns or deteriorating flex duct in the attic, not a failed blower motor. Homes built in the 1950s and 1960s often have return sizing that can’t keep up with a modern system, and decades of attic heat degrades flex duct until it sags. We measure static pressure and inspect the duct runs to find where the airflow is actually being lost.
We work around the original architecture, not through it. Many Preston Hollow homes have duct runs in unconditioned attics, flat roofs, and finished spaces that can’t be opened up. We use existing access points, run new flex where it’s feasible, and resize returns without disturbing walls or ceilings. The goal is a furnace that heats evenly and runs quietly, while the home’s original character stays intact. For an exact assessment of your system, call (430) 213-5796 for a free estimate.
Same-day service is available across Preston Hollow for furnace repairs, and we dispatch locally so response times are short. Our crews serve Preston Hollow directly from the Dallas-Fort Worth office, and we answer the phone around the clock. If your heat is out and temperatures are dropping, call (430) 213-5796 and we’ll give you a firm arrival window.
Written by Victor Mancini, Owner at Cold Harbour Heating and Air Dallas, serving Preston Hollow since 2003.