Furnace Repair - On-Site Today, Diagnosis First

Trusted Furnace Repair Nationwide

When your furnace quits on a cold night, you don’t need a callback window, you need a technician who shows up with the right parts and a price that won’t change at the door. Dalton Heating & Air has handled our Furnace Repair in Los Angeles and calls across the United States since 2003 under The Garrison Standard, which means every job gets a written price before work starts and a written guarantee before the crew leaves. Most furnace repairs run $150 – $700 depending on which part failed and how long the system has been limping along. Our technicians are background-checked, uniformed, and factory-trained on nine major HVAC brands including Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. A live person answers our phone 24/7 at (361) 306-9515, so you’re not leaving a message and hoping someone calls back. Same-day service is available for most furnace failures, and if the repair doesn’t hold, our 365-Day Done Right Promise means we return and make it right at no charge.

Call (361) 306-9515

Key Takeaways

• Furnace repair typically costs $150 – $700 depending on the failed component, system age, and access to the unit.
• Every repair includes a written price before work begins and a written guarantee for a full year, not a 30-day window.
• Dalton Heating & Air is a Garrison Partners company operating since 2003 under The Garrison Code, with background-checked technicians on every call.
• A live person answers the phone 24/7 at (361) 306-9515, no answering service, no voicemail queue.
• If the repair fails within the guarantee period, Dalton Heating & Air returns at no charge. That’s the 365-Day Done Right Promise.

Furnace Maintenance

Furnace Maintenance is the scheduled inspection and tune-up work that keeps your heating system running clean through the winter and catches small problems before they turn into $700 repair bills. A furnace that gets maintained once a year lasts longer, burns fuel more efficiently, and is far less likely to fail during a cold snap. Dalton Heating & Air performs furnace maintenance as a flat-rate service between $80 and $200, depending on system type and condition. We’ll inspect the heat exchanger, test the ignition system, check gas pressure if it’s a gas unit, replace the filter, and measure airflow across the blower. You get a written report of what we found, not a verbal summary. Most homeowners book this in early fall, before the first real cold front, but any time before heavy use is better than skipping it.

Seasonal Tune-Up Scope

Dalton’s maintenance visit includes checking the burner assembly, testing the flame sensor, and verifying the thermostat is calling for heat correctly. We also inspect the venting to confirm exhaust gases are moving outside the home, not backing up into living space. A neglected furnace vent is a safety issue, so we treat it as one.

Written Report, Not a Sales Pitch

Every maintenance visit ends with a written summary of what we tested and what we found. If something needs repair, you’ll get the price in writing before we order a single part. Dalton technicians are not paid on what they sell, so the report reflects the condition of the unit, not a quota.

Heat Pump Repair

Heat Pump Repair covers the diagnosis and fix of any component in a heat pump system, which heats your home in winter by moving outdoor heat inside rather than burning fuel. When a heat pump fails, you’ll often notice weak airflow, cold air blowing when it should be warm, or the outdoor unit icing over in conditions where it shouldn’t. Dalton Heating & Air repairs heat pumps across all major brands, with most jobs falling between $150 and $700 depending on the failed part. Our technicians are factory-trained on Trane, Carrier, Goodman, and five other major residential brands, so the repair follows manufacturer specifications rather than guesswork. We arrive inside the stated window, diagnose the problem, and put the repair price in writing before any work starts. If the system needs a refrigerant recharge, topping off the cooling fluid your heat pump needs to hit set temperature, we’ll quote that as a separate line item so you know exactly what you’re paying for.

Diagnosing the Defrost Cycle

Heat pumps run a defrost cycle in cold weather, and when that cycle fails, the outdoor coil freezes solid and the system stops heating. Our technicians test the defrost control board, the reversing valve, and the outdoor thermostat to isolate the failure. That kind of pinpoint diagnosis is what keeps a $150 sensor replacement from becoming a $700 compressor job.

Repair vs. Replacement Call

When a heat pump is older than 12 to 15 years, a major component failure can make replacement the smarter financial move. We’ll give you the repair price and, if you want it, the installed price for a new system, and let you decide without pressure. The Garrison Code means we present facts and prices, not scare tactics.

Heating Repair

Heating Repair is the broad category of work that covers any heating appliance in your home that has stopped doing its job, whether that’s a furnace, a heat pump, a boiler, or a ductless unit. If your home is cold and the thermostat is set to warm, you need a technician who can find the actual fault and fix it, not someone who guesses and hopes. Dalton Heating & Air handles heating repair for all major residential system types, including Furnace Repair in South Gate, with most jobs costing $150 – $700 depending on the part and the system. The price is written before any work starts, every time, without exception. That’s a Garrison Partners rule, not a company option, and it’s been in place since 2003. We carry common replacement parts on the truck, so a majority of heating repairs are completed on the first visit. If additional parts are needed, you’ll know the cost and the timeline before we leave.

Common Mid-Season Failures

We see failed ignitors, bad capacitors, and dirty flame sensors more than any other heating faults. An ignitor that is cracked but not yet failed will often cause intermittent no-heat calls, so we test rather than replace blindly. A capacitor that’s leaking or swollen gets replaced before it strands you without heat.

Full-System Diagnosis Standard

Dalton technicians are trained to check the whole heating system, not just the part the homeowner suspects. That means testing for proper airflow, checking the condensate drain, and verifying the venting is clear before we call the job done. You get a written guarantee on every repair, backed by our 365-Day Done Right Promise.

Boiler Repair

Boiler Repair addresses failures in hydronic heating systems, the setups that heat water and circulate it through radiators or baseboard units rather than blowing heated air. Boilers are common in older homes, and their failures tend to show up as no heat, leaking water, or banging noises in the pipes. Most boiler repairs through Dalton Heating & Air fall in the $150 – $700 range, depending on whether the problem is a circulator pump, a zone valve, an expansion tank, or a pressure-reducing valve. Our technicians understand boiler hydronics, including the low-water cutoff, the aquastat, and the fill valve, and they explain what failed in plain terms. If water is leaking from the boiler itself, call us right away, because a cracked heat exchanger can flood a mechanical room fast. We’ll quote the repair in writing before any work begins, and the repair carries a full-year written guarantee.

Circulator and Zone Valve Repairs

When one room or one floor won’t heat while the rest of the house warms up, the culprit is often a failed circulator pump or a stuck zone valve. We test the thermostat signal, the valve actuator, and the pump to find which part actually failed. Replacing the right part the first time is what keeps boiler repair from becoming a guess-and-check exercise.

Pressure and Expansion Tank Checks

A boiler that loses pressure or gushes from the relief valve often has a failed expansion tank. We check the tank’s air charge and the system pressure during every boiler call, because both are cheap to verify and expensive to ignore. A small pressure issue left alone can cause leaks at radiators and eventually damage the boiler itself.

Gas Furnace Repair

Gas Furnace Repair covers failures in natural gas and propane furnaces, which are the most common heating systems in American homes. A gas furnace that won’t fire, short cycles, or blows cold air is usually fighting one of three problems: a failed ignitor, a dirty flame sensor, or a blocked condensate line on high-efficiency models. Dalton Heating & Air also provides Furnace Repair in Huntington Park and repairs gas furnaces from all major brands, with most jobs priced between $150 and $700 depending on the part and the furnace design. We test gas pressure at the manifold, inspect the flame pattern at the burners, and verify the inducer motor is moving exhaust properly before we call the system safe. Because gas furnaces involve combustion, we treat every gas furnace repair as a safety job first and a comfort job second. The repair price is in writing before work starts, and the work is guaranteed in writing for a full year.

Ignitor and Flame Sensor Repairs

The hot surface ignitor is the glowing element that lights the gas, and when it cracks, the furnace simply won’t fire. We test the ignitor’s resistance rather than replacing it on suspicion, and we clean the flame sensor with the correct method so the burner doesn’t fail again in two weeks. These are the two most common gas furnace repairs we make, and they’re almost always same-day fixes.

Venting and Carbon Monoxide Checks

A gas furnace that is not venting properly can push carbon monoxide into the living space, and that is not something to wait on. Our technicians check the vent pipe, the inducer motor, and the pressure switch during every gas furnace repair. If we find a venting issue, we’ll explain exactly what is wrong and what it costs to fix, in writing, before we proceed.

Furnace Tune Up

Furnace Tune Up is the preventive service that gets your furnace ready for a full winter of steady use, and it usually costs between $80 and $200 with Dalton Heating & Air. We clean the burners, test the ignitor, check the gas pressure, inspect the heat exchanger for cracks, and replace the filter if needed. A tune-up is different from a repair: it finds and fixes the small efficiency killers before they cause a breakdown. The best time to schedule a furnace tune up is early fall, before nighttime temperatures start dropping, because that’s when you can catch a marginal part on your schedule instead of at 2 a.m. during a cold snap. Every tune-up includes a written report of what we found and what, if anything, we recommend. If we find a failed part during the tune-up, you’ll get the repair price in writing right then, and you decide whether to move forward.

What the Tech Actually Tests

During a Dalton furnace tune up, the technician tests the flame sensor signal, the ignitor’s resistance, the inducer motor’s amp draw, and the temperature rise across the heat exchanger. We also check the thermostat calibration so the furnace runs when it should and shuts off when it’s supposed to. That level of testing catches failures weeks before they become no-heat calls.

Same Flat Rate Every Year

Dalton Heating & Air keeps the tune-up rate flat, which means the price is the same whether your furnace is a 25-year-old basic unit or a recent high-efficiency model. We don’t upsell maintenance packages you don’t need and our technicians don’t earn commission on what they flag. You get the inspection, the cleaning, and the honest report for one written price.

Emergency Furnace Repair

Emergency Furnace Repair is the no-heat fix that cannot wait until morning, because a failed furnace in freezing weather is a health risk and a property risk, not just a comfort problem. Dalton Heating & Air answers the phone with a live person 24 hours a day, 7 days a week, so emergency calls get routed to a real technician, not a voicemail queue. If it’s safe to do so, an emergency furnace repair call gets a same-day visit in most of our service areas. The repair cost still falls in the $150 – $700 range depending on the failed part, and you still get a written price before any work starts, even at 3 a.m. Our 365-Day Done Right Promise covers emergency repairs the same as scheduled ones: if the fix fails within a year, we return at no charge. If you smell gas, leave the home immediately and call your gas utility first, then call us at (361) 306-9515 once you are safe.

What Counts as an Emergency

No heat at all when the outside temperature is below 40 degrees is an emergency, especially if there are children, seniors, or pets in the home. A furnace that is making loud banging, popping, or grinding noises is also an emergency, because it signals a mechanical failure that can quickly get worse. A furnace that is running but blowing cold air is an emergency too, since the system is burning energy without heating the house.

Night and Weekend Dispatch

Dalton Heating & Air keeps emergency dispatch staffed around the clock, so a call on a Sunday evening gets the same response as a call on a Tuesday morning. The technician who arrives will be in uniform, background-checked, and carrying common furnace repair parts on the truck. You’ll know the repair price before the work starts, and the written guarantee applies no matter what time the job is done.

Brands We Service

Dalton Heating & Air technicians are factory-trained to service Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard equipment. We stock common OEM parts for these brands on our trucks, which means fewer second trips and faster repairs when you have a Carrier or a Lennox furnace in the basement. Factory training matters because each of these brands has its own control-board logic, its own fault-code sequences, and its own recommended test procedures. A technician who knows the brand’s diagnostic interface can find the fault in half the time it takes someone working from a generic flowchart.

We service Daikin and Bryant systems with the same written-price, written-guarantee standard we apply to every other call. Whether you have an American Standard installed in the last five years or a Goodman that’s seen two decades of winters, our technicians diagnose by the manufacturer’s book and price before they work. That’s part of The Garrison Code, operating since 2003, and it doesn’t change based on what brand is in the mechanical room.

Signs You Need a Pro Right Now

• Your furnace is running but blowing cold air. This usually means the burners aren’t staying lit, the flame sensor is dirty, or the system is tripping a safety limit. It can also mean the gas valve isn’t opening, and either way, running the system in this condition wastes energy and won’t heat the house.
• The unit is short cycling, turning on and off every few minutes. Short cycling points to a failing flame sensor, a clogged filter, or an overheating heat exchanger. Every extra cycle adds wear to the blower motor and the ignitor, and the problem almost always gets worse the longer it runs.
• You hear banging, popping, or grinding from the furnace cabinet. Popping during startup can indicate delayed ignition, where gas builds up before it lights, which is a safety concern. Grinding usually means a blower motor bearing is failing, and that part will seize if it’s not addressed soon.
• Burner flames are yellow or orange instead of blue. A healthy gas furnace burns with a steady blue flame. Yellow or orange flame means incomplete combustion, which can produce carbon monoxide and signals a burner or venting problem that needs immediate attention.
• You smell gas or a sharp, acrid odor near the furnace. If you smell gas, leave the house and call your utility first once you’re outside. An acrid or burning smell often means dust is burning off, but it can also mean wiring is overheating, so treat it as a reason to call a technician right away.

Our Process, Step by Step

1. 1
   You call, and a live person answers. Reach Dalton Heating & Air at (361) 306-9515 any hour, any day. The person on the phone records your address, your furnace brand, and the symptom you’re describing, and gives you a service window before you hang up.
2. 2
   The technician arrives inside the stated window. Our technician shows up in a marked Dalton vehicle, wearing a uniform and carrying photo ID. He’ll ask what you’ve noticed about the system, then start with the thermostat and work toward the furnace, following the manufacturer’s diagnostic sequence.
3. 3
   You get a written diagnosis and a written price. Before any repair work begins, the technician writes down what he found, what part or parts need to be replaced, and the exact dollar amount to fix it. That price is firm. No additions at the door, no surprise labor upcharges, no “while we’re here” pressure.
4. 4
   The repair is completed and tested. After you approve the written price, the technician completes the repair, then runs the furnace through a full heating cycle. He confirms the burners light correctly, the blower moves the right amount of air, and the thermostat satisfies and shuts the system down.
5. 5
   You get a written guarantee before we leave. Every Dalton Heating & Air repair includes a written guarantee for one full year. If the same repair fails within that year, you call us, and we return at no charge to make it right. That’s the 365-Day Done Right Promise, in writing, on every job.

How Much Does Furnace Repair Cost?

Where We Work

Dalton Heating & Air serves homeowners and businesses across the United States through local crews bound to The Garrison Standard. Every location is independently owned and operated, and every location follows the same written-price, written-guarantee rules that have been in place since 2003. When you call our national line at (361) 306-9515, you’re connected to a dispatcher who routes your call to the nearest available Dalton technician. No franchises, no subcontracted crews, no different rules depending on where you live.

Frequently Asked Questions About Furnace Repair

Schedule Your Furnace Repair Service Today

A furnace that won’t heat is a problem that gets worse with every cold night, so call Dalton Heating & Air at (361) 306-9515 now. A live person will answer, get your details, and schedule a technician to arrive inside a stated window. You’ll get a written price before any work begins and a written one-year guarantee on the repair itself. Estimates are free, calls are answered 24/7, and the price won’t change at the door.

Written by Marco Benitez, Owner at Dalton Heating & Air, serving homeowners nationwide since 2003.