AC repair
Furnace & heating
Heat pumps
Ductless mini splits
Carrier
Trane
GoodmanSeasonal 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.
Get your free estimateTrusted Furnace Repair for Garland Homeowners
When the heat stops on a cold morning in Garland, you don’t want a technician guessing at your equipment. You want someone who has seen your brand before and knows where it tends to fail. Sunstone AC Repair has handled furnace repair in Garland since 2018, and we’re trained on nine of the most-installed residential brands in North America – including Goodman, Rheem, York, and Daikin. That means faster diagnosis, fewer return visits, and a straight answer about whether to repair or replace. We answer 24/7, with fast dispatch from 7am to 7pm, and same-day service when you call early. Call (866) 970-7959.
Furnace Maintenance
Furnace Maintenance is the seasonal check that keeps a working furnace from turning into a January emergency, and it’s what we recommend before the first real cold snap each year. It covers a clean and inspect of the burners, heat exchanger, blower, filter, and safety controls, plus a check of the flue and thermostat. We service Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard equipment, so the technician arrives already familiar with your unit’s quirks. A typical furnace tune up in Garland runs $80-$200 depending on the system and what needs attention, and the written estimate sets the final price.
What a Maintenance Visit Covers
We inspect the heat exchanger for cracks, check the burners for clean combustion, verify the blower motor and capacitor, and test the safety switches. Filters get replaced if you’ve supplied one, and we note anything that’s wearing out before it fails. You get a plain-language report of what we found, not a sales pitch.
When to Schedule It
Late fall is the natural window, before Garland’s mild winter turns cold enough to put real demand on the system. If your furnace has run through several seasons without a check, it’s worth booking regardless of the calendar. Maintenance is also the cheapest way to catch a failing part while the repair is still small.
Styles & brands we work with
- AC repair
- Furnace & heating
- Heat pumps
- Ductless mini splits
- Carrier
- Trane
- Goodman
Heat Pump Repair
Heat Pump Repair covers the heating side of a heat pump system when it stops blowing warm air or reverses into cooling mode in the middle of winter. In Garland, heat pumps are common because the mild climate suits them well, and when the reversing valve, defrost board, or compressor contactor fails, you need a technician who can diagnose both the heating and cooling circuits. Sunstone handles heat pump repair alongside the rest of your comfort system, so one call covers the whole unit. Typical heat pump repair runs $150-$700 depending on the failed component, with the estimate setting the final price.
Common Heat Pump Failures
The reversing valve sticking is the classic winter problem, and it can leave the system blowing cold when you need heat. Defrost boards fail too, and a heat pump that ices over on the outdoor coil in mild weather is usually a sign of that. We test the board, sensors, and charge before recommending a part.
Heating and Cooling in One Unit
Because a heat pump does both jobs, a repair on the heating side often means checking the cooling side too. We test the whole system rather than just the part that failed, which prevents the same visit from happening twice. It’s the reason we service both Sunstone AC Repair cooling and heating work under one roof.
Heating Repair
Heating Repair is the broad category that covers furnaces, heat pumps, and any system that’s supposed to keep your home warm but isn’t. If your system runs but doesn’t heat, cycles on and off constantly, or blows air that’s barely lukewarm, that’s when you need a technician. We service nine major brands, including Goodman, Rheem, York, and Daikin, and we’re not locked into pushing one manufacturer – recommendations come from what your system actually needs. Typical heating repair in Garland runs $150-$700, depending on the diagnosis, and the written estimate sets the final number before we start.
Signs Your Heating System Needs Attention
Cold air from the vents, a system that short-cycles, or a furnace that runs but never reaches the thermostat setting are all worth a call. Strange noises – banging, rattling, or a high-pitched whine – usually mean a component is failing. Don’t wait for a full breakdown; a small repair now is cheaper than an emergency later.
Why Diagnosis Matters More Than the Fix
Two furnaces can show the same symptom and need completely different repairs. That’s why we diagnose the problem, not the upsell, using combustion analysis and electrical testing rather than guesswork. It’s the difference between fixing the right part and replacing parts until the problem goes away.
Boiler Repair
Boiler Repair covers systems that heat water for radiators or in-floor heating, and in Garland these are less common than forced-air furnaces but still show up in older homes and custom builds. When a boiler stops producing heat, leaks, or makes banging noises, the problem is usually a circulator pump, a bad aquastat, a zone valve, or mineral scale in the heat exchanger. We diagnose the whole system, including the controls and the distribution, before recommending anything. Typical boiler repair runs $150-$700 depending on the failed component, and the estimate sets the final price.
Pressure and Temperature Problems
A boiler that loses pressure repeatedly usually has a leak somewhere in the system, and topping it off only hides the problem. High pressure or a pressure relief valve that keeps opening points to an expansion tank or fill valve issue. Both are worth a professional look before the boiler shuts down on safety.
Noises and Circulation Issues
Banging or knocking in the pipes is often air in the system or a failing circulator pump. Cold radiators on one zone while others heat fine usually point to a stuck zone valve. These are fixable without replacing the boiler, and diagnosing them correctly is the whole job.
Gas Furnace Repair
Gas Furnace Repair addresses the specific safety and combustion side of a gas-fired furnace – the burners, gas valve, igniter, flame sensor, and heat exchanger. These are the parts you don’t want anyone guessing at, because a cracked heat exchanger or a bad gas valve is a real safety concern. If you smell gas, leave the house and call your gas utility first; then call us to handle the repair. Typical gas furnace repair in Garland runs $150-$700, and the written estimate gives you the number before work begins. We answer 24/7 at (866) 970-7959.
Combustion and Safety Checks
Every gas furnace repair includes a combustion analysis and a visual inspection of the heat exchanger. We check for proper flame color, carbon monoxide levels, and correct venting before we sign off. If we find a cracked heat exchanger, we tell you plainly and recommend the safe path forward.
Ignition and Sensor Problems
A furnace that tries to light but shuts off after a few seconds is usually a dirty flame sensor or a failing igniter. These are common, cheap fixes that are worth diagnosing precisely rather than replacing parts. We test the ignition sequence step by step until we find the actual cause.
Furnace Tune Up
A Furnace Tune Up is a focused, flat-price service that cleans and tests the furnace without any repair work attached, and it’s the cheapest insurance against a mid-winter breakdown. We recommend it once a year for any gas or electric furnace that’s more than a couple of seasons old. The technician checks the burners, blower, blower motor capacitor, filter, thermostat calibration, and safety controls, then writes up what they found. A furnace tune up in Garland typically runs $80-$200, and the written report tells you exactly what shape the system is in. No commission – our technicians aren’t paid on what they sell.
What Gets Tested
We measure temperature rise across the heat exchanger, check amperage on the blower motor, and verify the igniter and flame sensor are within spec. Filters get changed, and we look for signs of wear that suggest a part will fail soon. You get a written report at the end of the visit.
Is an Annual Tune Up Worth It?
Yes, especially on equipment that’s out of warranty or past its first decade. Catching a failing capacitor or a dirty flame sensor during a tune up costs far less than the same repair on a cold night when the system dies completely. It also keeps the furnace running at its rated efficiency, which shows up on your gas bill.
Emergency Furnace Repair
Emergency Furnace Repair is the call you make when the heat fails and the house is getting cold – especially with kids, older adults, or anyone with health concerns in the home. In Garland, winters are mild, but a furnace that quits on a cold night still needs fast attention because the house loses heat quickly and pipes can get cold enough to matter. We answer 24/7, with fast dispatch from 7am to 7pm. Call (866) 970-7959 and we’ll book the soonest opening; a call outside dispatch hours is booked into the next opening, Sunday through Friday. Typical emergency furnace repair runs $150-$700, and the written estimate sets the final price.
What Counts as an Emergency
No heat at all with temperatures dropping, a gas smell, a furnace that trips the breaker every time it starts, or any sign of carbon monoxide – these are true emergencies. A furnace that’s just noisy or running less efficiently can usually wait for a scheduled visit. When in doubt, call and describe what’s happening.
What to Do While You Wait
Turn off the furnace at the thermostat if you smell gas, and leave the house if the smell is strong. If there’s no gas smell, keep the house closed up, use space heaters carefully, and don’t try to relight a pilot or open the furnace panel yourself. We’ll take it from there when we arrive.
Brands We Service
We service Goodman equipment and know where it wears out – the induced draft motor and control board are the usual failure points on older Goodman furnaces, and the igniter is a common culprit too. We service Rheem furnaces, and Rheem’s flame sensor and gas valve issues are ones we’ve diagnosed many times. York equipment has its own quirks, particularly around the hot surface igniter and pressure switch, and we’ve learned to test those first rather than chasing the wrong part. Daikin systems round out the list, and their inverter-driven components need someone who understands the electronics rather than swapping boards.
We’re also trained on Carrier, Trane, Lennox, Bryant, and American Standard, so whether you have a Goodman or any other make, we can help. If your brand isn’t on our list, call us anyway – we’ll tell you honestly whether we can service it or point you toward someone who can. It’s part of being the kind of company that diagnoses the problem, not the upsell.
See the difference
Before
After
Before
After
Before
AfterSigns You Need a Pro Right Now
- No heat at all. A furnace that won’t start when you turn up the thermostat is usually a failed igniter, flame sensor, or control board – all fixable, none DIY-safe to diagnose.
- Cold air from the vents. If the blower runs but the air is cold, the burners aren’t lighting or the heat exchanger isn’t getting hot enough. This one can point to a safety issue.
- Yellow or orange flame. A healthy gas flame is blue; a yellow flame suggests incomplete combustion and possible carbon monoxide. Turn the system off and call.
- Strange smells. A faint gas smell or a burning smell that won’t clear is worth an immediate call. Leave the house if the gas smell is strong.
- Repeated breaker trips. A furnace that trips the breaker every time it starts has an electrical fault that could damage the motor or control board. Stop resetting it and call.
Our Process, Step by Step
- 1
You call and describe the problem. We ask about the brand, age, and symptoms so we can send the right technician and roll the right common parts.
- 2
We arrive and diagnose. Our technicians use combustion analysis, electrical testing, and manufacturer-specific fault codes to find the actual failure – not the one that’s easiest to sell.
- 3
We walk you through it. You see the failed part, hear why it failed, and get a written estimate before any work starts. No surprises on the invoice.
- 4
We repair and test. Once we have your go-ahead, we make the repair and run the system through a full heating cycle to confirm it’s working correctly.
- 5
We follow up. You get a plain-language summary of what we found and what to watch for. If a replacement makes more sense than another repair, we tell you that too.
How Much Does Furnace Repair Cost in Garland?
Furnace repair in Garland typically runs $150-$700, and the written estimate sets the final price before any work begins. A few common scenarios: a dirty flame sensor or igniter replacement usually lands at the low end of that range; a blower motor, control board, or inducer motor repair sits closer to the middle; and a gas valve or heat exchanger repair, which is a bigger job, tends toward the higher end. A furnace tune up is a separate, flatter service at $80-$200.
What moves the number: the specific part that failed, whether the furnace is a brand we already know well, and how accessible the unit is. A furnace in a tight closet takes longer to work on than one in a garage. A model we service often (Goodman, Rheem, York, or Daikin) is faster to diagnose than something unusual.
How to avoid overpaying: get a written estimate before any work starts, and ask what the diagnosis actually found. A reputable technician will show you the failed part and explain why. We diagnose the problem, not the upsell, which means you’re not paying for a part that didn’t need replacing.
What’s included in a free estimate: the diagnosis, a clear explanation of the failure, a written price for the repair, and an honest answer if the repair isn’t worth it. No diagnostic fee. No trip charge. If repair doesn’t make sense, we’ll tell you and quote a replacement instead.
Our Service Area Near Garland
Sunstone AC Repair serves Garland and the surrounding cities, including Garland, Heath, Rockwall, Fate, Forney, Seagoville, Richardson, Mesquite, Dallas, and Plano. Response times vary by distance and time of day – call and we’ll give you a realistic window for your address. Fast dispatch from 7am to 7pm, and we answer 24/7.
Serving Garland, TX – Our Local Coverage Area
We serve Garland and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
Frequently Asked Questions About Furnace Repair in Garland
Furnace repair is the diagnosis and fix of a gas or electric furnace that’s not heating properly, not starting, or making strange noises or smells. It covers the burners, igniter, flame sensor, control board, blower motor, and heat exchanger. It’s the work that restores heat without replacing the whole system. Call (866) 970-7959 for a free estimate.
Most furnace repairs take one to three hours once we’ve diagnosed the problem. Simple fixes like an igniter or flame sensor can be done in under an hour; a control board or blower motor takes longer. If we need a part we don’t carry, we’ll tell you at the estimate stage. Call (866) 970-7959 to schedule.
Furnace repair in Garland typically runs $150-$700, depending on the failed part and the system. A tune up is a separate, flat-price service at $80-$200. The written estimate sets the final price before we start, and the estimate itself is free. Call (866) 970-7959 for an exact quote – estimates are free.
Yes. We’re trained on Goodman, Rheem, York, Daikin, Carrier, Trane, Lennox, Bryant, and American Standard equipment. That factory familiarity means we know where each brand tends to fail and can diagnose faster. Call (866) 970-7959 to book.
Yes, same-day service is often available when you call early in the day. We answer 24/7, with fast dispatch from 7am to 7pm, Sunday through Friday. A call outside dispatch hours is booked into the next opening. Call (866) 970-7959.
Repair warranties depend on the part and the manufacturer, and we’ll spell out the coverage in writing on your estimate. Manufacturer warranties on your equipment may still apply, and we can help you check. Ask during the estimate and we’ll put it in writing. Call (866) 970-7959 with questions.
Clear access to the furnace and thermostat, and note any symptoms you’ve seen – noises, smells, how often it cycles. If you have the manual or model number, have it ready. And if you smell gas, leave the house and call your gas utility before calling us. Call (866) 970-7959 to schedule.
Schedule Your Furnace Repair Service in Garland Today
Don’t wait for the house to get cold. Call (866) 970-7959 to schedule furnace repair in Garland with a team trained on your brand – Goodman, Rheem, York, Daikin, and more. We answer 24/7, with fast dispatch from 7am to 7pm, and the estimate is free. No obligation, no pressure, just a straight diagnosis and a written price. Sunstone AC Repair has served Garland since 2018.
Written by Harold Duran, Owner at Sunstone AC Repair, serving Garland since 2018.