Heating Repair in Santa Fe, NM
No-heat calls here cluster on the first teen night because that is when a weak igniter, a dirty flame sensor, or a circulator that sounded “fine” in October finally quits. We repair furnaces, boilers, and heat pumps, test combustion at altitude, and we will not leave you on space heaters overnight if the part is on the truck. 505-316-4231.
No-heat calls here cluster on the first teen night because that is when a weak igniter, a dirty flame sensor, or a circulator that sounded “fine” in October finally quits. We repair furnaces, boilers, and heat pumps, test combustion at altitude, and we will not leave you on space heaters overnight if the part is on the truck. 505-316-4231.
Content reviewed 2026-10-01.
Furnace, boiler, or heat pump
Tell us what you have. The troubleshooting is not the same. A heat pump in defrost is not “broken.” A boiler with no pressure is not a thermostat.
First teen night is the calendar
October “it sounded fine” is January’s no-heat. We stock igniters, sensors, and circulators that actually fail at this elevation instead of ordering after you have been on space heaters for two days.
Combustion before the sales pitch
Soot, smell, or lazy heat is often a burner that was never orificed for 7,200 feet. We test CO and gas first. A $40 sensor is not a furnace.
Name the machine before we name the part
Heating repair in this town might be a furnace, a boiler, a heat pump, baseboard, radiant, or a wall heater in a casita. The phone call should say which. “The heat is out” sends the wrong parts if we guess. If you do not know, tell us what the thermostat wires go to, or send a photo of the unit. We would rather see a blower and a gas valve than hear “the heater.”
Diagnosis before the parts cannon
A furnace that does not start can be a thermostat, a condensate switch, a pressure switch, an igniter, a flame sensor, or a control board. Those parts have an order. We do not replace all of them because the truck is stocked. We test the one that failed. Boards get blamed for dirty flame sensors. Igniters get blamed for a pressure switch that will not close because the vent is blocked. The vent in Santa Fe includes ice, a bird, and a vent that was reduced during a reroof.
Safety items we will not bypass
A roll-out switch that has tripped means flame went where flame should not go. We find out why. We do not jumper it. A heat exchanger that is cracked is a condemnation, not a cleaning. A gas valve that will not shut is a shutoff at the appliance valve and a replacement, not a “turn it off at the thermostat.” Carbon monoxide in the supply air ends the visit as a repair and starts it as a do-not-run. We leave the system off and we say that in writing.
The repair versus the replacement conversation
We put both numbers down when the equipment is old enough that the question is fair. A $400 igniter on a 22-year-old furnace is still the right repair if the exchanger is intact and you want another few seasons. A $400 igniter on a furnace with a cracked exchanger is wasted. We will not push the replacement to make the ticket larger, and we will not hide the age to make the repair look smarter than it is. You decide with both numbers.
After it is running
Temperature rise on a furnace, or the loop actually getting hot on a boiler, before we leave. A system that “comes on” and produces lukewarm air is not finished. Filter, vent, and the thermostat schedule if the house was simply set to hold 55. We see that more than anyone wants to admit. Call 505-316-4231. If you smell gas, shut the appliance valve if you can do it safely and call from outside.
Triage on the phone
Smell of gas, or a CO alarm, and we tell you to leave and to call the utility if the odor is strong. No smell and no heat, and we ask what the machine is and what it is doing: silent, clicking, blowing cold, blowing warm for a minute and stopping. Those four answers are four different parts. A photo of the front of the unit and of the thermostat saves a return trip to the truck. If you have already replaced the thermostat and it changed nothing, say that. We will not sell you a second thermostat.
In the closet
We watch a full call for heat. We do not yank parts during the sequence. When it stops, the meter goes on the part that stopped it. Condensate safety switches get a look on every condensing furnace because they are the most common “dead furnace” in a house that also has a slightly clogged drain. Vents get a look because birds and reroofs are common here. The repair is the failed part plus the reason it failed, if the reason will kill the new part. A flame sensor on a sooted burner is a cleaning and a sensor, not just the sensor.
Written result
What failed, what we replaced, what we recommend and did not do. If the exchanger is in question we say inspected or not inspected. We do not write “serviced” as if that word meant safe. Temperature at a supply register before we leave, so “it runs” is not the only test. After-hours premium is on the invoice as its own line if it applied. 505-316-4231. License 384927. If the heat is a boiler or baseboard, say so and you will get the person thinking about water, not a blower.
No heat, without replacing everything that might be guilty
The sequence is the diagnosis. Thermostat, safeties, inducer or pump, ignition or burner, airflow or circulation, then the expensive board. We say which step failed. A dirty flame sensor, a clogged condensate switch, a bird in the vent, and a cracked exchanger are four different endings and only one of them is a new furnace. You get the ending we found, plus a price. If the equipment is old and the repair is a large fraction of a replacement, you also get the replacement number so you are not choosing blind. We do not jumper rollout or limit switches to “get you through the night” and leave a hazard. CO in the supply air ends the visit with the system off. Gas odor is a shutoff and, if it is strong, the utility from outside before we are heroes. Boilers and furnaces both get called “the heater.” Say which, or send a photo. Baseboard and radiant calls belong on those pages, but if you landed here we will still help you and we will not pretend a blower part fixes a cold loop. After-hours is for houses that are actually cold or unsafe, and the premium is said first. 505-316-4231. License 384927. The note we leave names the part and the reading, not the word “serviced.”
Say what it does, not only that it failed
Silent is power, a switch, or a stat. Clicking with no flame is ignition or a safety. Flame that lights and dies is the sensor or the flame. Blower that runs cold is the burner not firing or a heat pump in the wrong mode. Blower that runs hot and then stops is a limit, a filter, or an exchanger that should not be run. Water on the floor in front of a condensing furnace is the drain, and it will shut the furnace down on purpose. Those sentences get you the right part on the truck. “Heater’s out” gets you a tech and a guess. Add the photo. If an alarm sounded, say alarm. We treat that as combustion until we prove otherwise, and we do not reset and leave. The price is the part we prove, plus the premium if you wanted us at night and we told you the premium first. Morning is a fair offer when the house is safe and merely cool.
What we actually get called for
Not a generic list — these are the failures this climate and housing stock produce.
Blower runs, no heat
Ignition or gas. We meter it.
Short cycles
Overheat, airflow, or a control. Cracked exchangers get a hard stop.
Cold second floor
Ducts or zoning — not always a new furnace.
Boiler with no pressure
Fill, leak, or a tank. Not a thermostat. We check the gauge before we talk parts.
How a job runs
Safe light-off
CO and gas first.
Repair
Part and test. If the part is on the truck, the house gets heat tonight.
Talk replacement only if it is done
Age plus a cracked exchanger is done. A $40 sensor is not.
Questions people ask before they call
Can you come tonight if the heat is out?
Yes. Emergency rate applies. If a part has to come from Albuquerque we will still make the house safe.
Why does high altitude matter on a repair?
A board swap does not fix a burner that was never orificed for 7,200 feet. We check that when the complaint is soot, smell, or lazy heat.
Do you repair boilers and furnaces on the same call?
Yes. Same mechanical room often has both a boiler and a water heater. We carry both trades so you are not splitting the visit.
City pages that stay
Heating Repairs stays on this URL. Santa Fe, Los Alamos, and Española each have one plumber page. Other towns 308 here or to those three. Call 505-316-4231.
Need heating repairs?
Lobo Tech · NM license 384927 · 1259 Coriander Rd, Santa Fe · 505-316-4231