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.
Fast, Reliable Furnace Repair Across Redwood
Most furnace repairs in Redwood run $150 – $700, and we can usually get a technician to your door the same day you call. If your furnace is blowing cold air, short-cycling, or refusing to fire at all, call (361) 306-9515 right now. A live person answers 24/7, and the price is in writing before any work starts.
We know Redwood’s housing stock, we know how its winter temperature swings stress a gas furnace, and we carry parts for most major brands on our local trucks. That means less waiting and fewer return trips. Whether you’re off FM 3025 or in one of the older ranch neighborhoods, our Furnace Repair team is already familiar with the equipment footprint and ductwork common to this area.
Dalton Heating & Air runs every job under The Garrison Standard: we arrive inside the stated window, we put the price in writing before touching a wrench, and every repair carries a full-year written guarantee. If the work doesn’t hold, we come back at no charge. No exceptions.
Why Dalton Heating & Air Is Redwood’s Preferred Furnace Repair Company
Homeowners across Redwood call us because the crew shows up when they say they will, and the invoice matches the quote. Marco Benitez runs our team with a simple rule: do the job by the book, leave the site clean, and stand behind the work. That discipline comes from 2003, when Dalton joined Garrison Partners and adopted The Garrison Code, a set of operating rules every tech follows on every call.
We’re background-checked and uniformed, so you know who is walking up to your door. We’re factory-trained to service nine major brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. If your furnace was built by a mainstream manufacturer, we have worked on it before and we likely carry the part on the truck.
Dispatch and scheduling are coordinated from the brand’s Dallas-Fort Worth office, but the technicians who handle Redwood calls are local to this service corridor. That means we understand the duct layouts, thermostat setups, and furnace oversizing issues that show up repeatedly in this part of Texas.
Boiler Repair in Redwood
Boiler repair in Redwood comes up more often than most homeowners expect. A number of older homes here were built with hydronic heating, and when a boiler starts leaking, short-cycling, or dropping water pressure, the whole house gets cold fast. Boiler work in this market runs $150 – $700 for most repairs, depending on the failed component.
The most common calls we get involve failed circulator pumps, stuck zone valves, and expansion tanks that have lost their air charge. Each one can knock out heat to part or all of the house, and homeowners often misread the symptoms as a thermostat or wiring problem. We start every boiler call with a combustion and pressure check. That tells us whether we’re chasing an electrical gremlin or a heat exchanger leak.
Circulator Pump and Zone Valve Repair
A circulator pump that hums but doesn’t move hot water is usually a seized impeller or a dead capacitor. Replacing it restores hot water flow to the radiators or baseboards. Zone valves can stick in the middle position, leaving one end of the house cold while the other stays comfortable.
Expansion Tank and Pressure Switch Issues
Hydronic systems need an expansion tank to absorb pressure spikes as water heats. When the tank’s bladder fails, the relief valve drips and the whole system runs at the wrong pressure. We test the tank and replace it if it’s waterlogged, then verify the system holds the right operating pressure.
Boiler work is never a parts-swap guess. We read the gauge, check the relief valve, and verify the venting. Then we show you the written price and the written one-year guarantee before any parts go in.
Gas Furnace Repair in Redwood
Gas furnace repair in Redwood is the bulk of our winter work, and the first cold snap of the year always generates a wave of no-heat calls. Most repairs land between $150 and $700, with the most common failures being ignitors, flame sensors, gas valves, and blower motors. We keep those parts stocked for fast same-day turnaround.
Redwood sits in a mixed-humid pocket where winter design temperatures dip low enough for routine furnace work, but the real tell is that shoulder-season temperature swings let a gas furnace short-cycle without ever throwing a code. So our first move on any no-heat call is a load calculation and static pressure reading, not a parts swap. That habit catches problems other techs miss.
Ignitor and Flame Sensor Replacement
A hot-surface ignitor glows to light the burner. When it fails, the gas valve opens and closes but the furnace never fires. The flame sensor tells the control board the burner is lit. If it’s coated or failing, the furnace fires for a few seconds and shuts down. Both are quick, affordable repairs in Redwood.
Gas Valve and Blower Motor Repair
A gas valve that won’t hold pressure or won’t open starves the burners. A blower motor that seizes or loses a capacitor means the burner may fire but the heat never reaches the rooms. We test gas valve continuity and blower motor amperage on every call, then quote the exact repair in writing.
We ran a no-heat call off FM 3025 in Redwood where the homeowner’s Lennox gas furnace would fire, run about four minutes, then lock out. The board was clean, but a static pressure check showed 0.92 in. w.c. against a rated 0.5, and the heat exchanger had a hairline crack from years of short cycling. We verified the crack with a combustion analyzer, replaced the exchanger under the manufacturer’s parts warranty, corrected the undersized return, and the unit now holds a steady 0.48 static and a 40-degree temperature rise. That’s the difference between fixing the symptom and fixing the furnace.
Trusted Brands We Service in Redwood
Our techs are factory-trained on nine major residential HVAC brands, and we carry parts for Goodman, Rheem, York, and Daikin systems on the local trucks that serve Redwood. If you have a different brand, we still service it and can source the part quickly. We keep common ignitors, flame sensors, capacitors, gas valves, and blower motors stocked so a repair doesn’t turn into a multi-day wait. When a part isn’t on the truck, we can usually have it in hand the next morning. You’ll know the part price and the labor price in writing before we install anything.
Common Furnace Repair Problems We See in Redwood Homes
- Short cycling from oversized equipment. Many Redwood homes were fitted with 100k BTU furnaces in small footprints, so the burner never reaches steady-state and the heat exchanger fatigues early. We catch this with a load calculation before recommending replacement.
- Dirty flame sensor and weak capacitor failures during the first cold snap. The sensor reads microamps, and a capacitor that tested fine at 70°F drops below spec at 35°F. What looks like an intermittent furnace is usually one of these two parts.
- Blower motor and control board faults that trace back to undersized return ducts. Not the motor itself. Static pressure on Redwood’s older ranch stock is almost always the root cause, and we measure it on every call.
- Heat exchanger cracks from years of high static pressure. A furnace that has been running against a choked return duct cracks earlier than one that wasn’t. We verify each suspect exchanger with a combustion analyzer, and if it’s cracked we tell you straight whether repair or replacement is the smarter money.
Pricing for Furnace Repair in Redwood, TX
Here’s the honest cost picture for furnace work in Redwood. These are the ranges we quote every day, and the price you get in writing before we start is the price you pay.
| Service | Typical Range |
|---|---|
| Furnace diagnostic and repair (ignitor, flame sensor, capacitor, blower motor) | $150 – $700 |
| Boiler repair | $150 – $700 |
| Annual furnace tune-up and safety check | $80 – $200 |
| Full furnace replacement with load calculation and static pressure test | $3500 – $7500 |
What changes the final number is the part. An ignitor is a $150 – $250 repair. A gas valve runs higher, especially on modulating furnaces. A blower motor lands in the middle. The diagnostic fee is included in the written quote, and the quote is free. Call (361) 306-9515 and we’ll tell you the cost before you commit to anything.
We Also Serve Cities Near Redwood
Our service map stretches beyond Redwood to include Houston, San Antonio, Dallas, and Fort Worth. If you own a rental or a second property in one of those metros, the same written pricing and one-year guarantee applies. The local crews who handle Furnace Repair calls across this corridor run every job under The Garrison Standard.
Serving Redwood, TX - Our Local Coverage Area
We’re based in the Redwood 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 Redwood
Usually a repair. The most common causes are a dirty flame sensor, a failing ignitor, or a blocked air filter driving the unit off on high limit. We diagnose it with a combustion analyzer and a static pressure check before recommending anything. If the heat exchanger is cracked, we’ll show you the evidence, pull the manufacturer’s parts warranty if it applies, and give you a straight repair-versus-replace comparison. Call (361) 306-9515 and we’ll get a tech out today.
Because the rating assumes the furnace runs at rated static pressure with the right return duct and clean burners. In Redwood, we regularly find furnaces rated at 90+ AFUE that are actually running well below that because the return duct is undersized, the filter is clogged, or the burners are out of adjustment. We measure static pressure and combustion performance on every call, then show you what the numbers mean on your actual bill. A tune-up fixes most of it. A load calculation tells you if replacement is the only way to get the numbers back in line.
Yes. Boiler repair in Redwood is a standard part of our winter workload. We work on circulator pumps, zone valves, expansion tanks, pressure switches, and venting on hydronic systems. Most boiler repairs land in the $150 – $700 range, and every one carries the same one-year written guarantee as our furnace work. If your radiators are cold or the boiler is leaking, call (361) 306-9515.
Most furnace repairs in Redwood run $150 – $700, with smaller jobs like ignitor or flame sensor replacements at the low end and gas valves or blower motors at the high end. A full furnace replacement runs $3500 – $7500, and that price includes a load calculation and a static pressure test, not just a box swap. Every repair quote is in writing before we start. Call (361) 306-9515 for a free estimate.
We carry parts for Goodman, Rheem, York, and Daikin furnaces on our local Redwood trucks, and we’re factory-trained on those plus Carrier, Trane, Lennox, Bryant, and American Standard. If your furnace is a mainstream brand, we either have the part or can get it the next morning. The price is in writing either way. Call (361) 306-9515 and tell us what you have. We’ll tell you if the part is on the truck.
Written by Marco Benitez, Owner at Dalton Heating & Air, serving Redwood since 2003.







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