Furnace Repair Service Las Cruces — Honest Heat When You Need It Most
Hey, I’m Gustavo — owner of A to Z Plumbing Heating and Cooling, right here in Las Cruces. I’ve been fixing furnaces around this city for over 15 years. From freezing mornings in Mesilla to busted blowers in Doña Ana, I’ve seen what happens when a furnace quits working — and how fast things can go from chilly to stressful.
One time we got a call from a family over near Alameda-Depot. Their furnace had died in the middle of the night. It was 29 degrees outside. They had two little kids and a dog wrapped in blankets. We got there by 9 AM, swapped out a bad ignitor, and had the heat back before lunch.
That’s what we do. Real repairs. No drama. Just solid work to keep your home or business warm.
Emergency Call - 24/7
Why Furnace Repairs Matter in Las Cruces
Most people think Las Cruces is always hot. But those of us who live here know better.
Winter mornings hit hard. Temps can drop into the 20s. And in older homes — like the ones you find in Mesilla Park, Alameda-Depot, and even parts of Sonoma Ranch — poor insulation makes it worse. Your furnace has to work overtime just to keep up.
We’ve seen systems shut down from:
Dust and dirt in the burners
Cracked heat exchangers
Bad flame sensors
Blower motors that grind to a stop
Thermostats that misfire
And in newer homes? It’s often cheap parts, bad ductwork, or oversized units running wrong.
What Furnace Repair Service Includes
Here’s what we usually check and fix when you call us:
Thermostat problems
Blower motor issues
Flame sensor and ignitor replacement
Gas valve checks
Electrical troubleshooting
Pilot light issues
Clogged filters
Noisy or vibrating units
Heat exchanger safety inspection
Airflow and pressure readings
We work on all types — gas, electric, and combo units. And yes, we fix both home and commercial furnaces.
What It’s Like When We Show Up
We keep it simple:
We show up when we say we will
We look at the system — no guessing
We explain what’s wrong in plain words
You get honest options
We fix it
You stay warm
If it’s something small, we’ll fix it on the spot. If it’s a bigger issue, we’ll walk you through pricing and timing before we do anything.
Real Work Across Real Neighborhoods
We’ve worked everywhere — old ranch homes in Mesilla, newer townhomes in Northrise, businesses near University Ave, and even an office that used to be a house in Fairacres.
A guy called us last January from Las Alturas — his furnace ran nonstop and never hit the target temp. We found his ductwork leaking into the attic. Sealed it. Rerouted a couple of vents. Problem solved.
Available for 24/7 Emergency Service in las cruces
Furnace Repair Services in las cruces nm
01.
Ignitor & Flame Sensor Replacement
If your furnace won’t start or shuts down quickly, we check and replace faulty ignitors or flame sensors — a common issue in dusty areas like Mesilla and Vado.
02.
Blower Motor Repair & Replacement
No airflow or weak heat usually means the blower motor is failing. We test, repair, or replace it to restore full airflow throughout your home.
03.
Thermostat Troubleshooting & Upgrades
We fix broken thermostats or upgrade to smart models — ideal for saving energy and handling wild Las Cruces temperature swings.
04.
Gas Valve & Pilot Light Repairs
For older gas furnaces, we repair stuck valves and relight or clean pilot assemblies that keep the flame going.
05.
Electrical Component Repair
From faulty circuit boards to tripped limits and dirty sensors, we handle all the wiring and control side of furnace repair safely and fast.
06.
Furnace Tune-Ups & Safety Checks
We offer seasonal maintenance to catch problems early — cleaning burners, checking carbon monoxide levels, and making sure your furnace runs safely and efficiently.
24/7 Emergency Furnace repair services
📞 Call or text A to Z Plumbing Heating and Cooling LLC
🕒 Same-day appointments available
🌙 Emergency Furnace services 24/7
EXCELLENT Based on 16 reviews Posted on Brad BranfieldTrustindex verifies that the original source of the review is Google. A to Z Plumbing repaired my leaking tankless water heater. Charles contacted the manufacturer, patiently answered all of their questions, and obtained parts under warranty. Another plumbing company in town didn't want to bother with the warranty. Charles was great during the diagnosis and repair process. I recommend A to Z Plumbing!Posted on Maria CounsmanTrustindex verifies that the original source of the review is Google. Gustavo and company have been nothing short of exceptional. We called one day. They showed up the next. Our AC unit needed to be replaced. Works perfectly. They offered us a great deal that we were very pleased about. We only suffered through warm temps for a few hours. Thank you is never enough.Posted on David FerralesTrustindex verifies that the original source of the review is Google. I can't say enough about the service I received!!! I had a plumbing emergency. I contacted Gustavo after being recommended to him. We spoke, set up a time and he came out and he was able to find the problem very quickly. He showed & explained the cause of the issue and I'm very appreciative of him and son. I would recommend A to Z to anyone wanting an excellent plumber. I will be using them in the future. Thank you!!!!Posted on Carlos MartosTrustindex verifies that the original source of the review is Google. A through Z plumbing replaced two bathtub faucets that were very difficult to access. They took their time and did a fantastic job. They also replaced my pressure regulator. After the job, they were very thorough to make sure that the job was done right and that there were no leaks or any other issues present. I would highly recommend their services!Posted on Michelle RodriguezTrustindex verifies that the original source of the review is Google. I HIGHLY recommend these guys. They came out within 10 min after my call. I ran into an issue with a shower install and they fixed the problem immediately They are my go to plumber from now on. Thanks again guys!!!!Posted on Lee HomesteadTrustindex verifies that the original source of the review is Google. Spoke with Gustavo. Excellent communication and helped me stop a leak issue with my water heater. I am ecstatic to have found a knowledgeable Plummer who is now going to be my ‘go to’ Plummer for anything that arises. Thank you A to Z plumbing!Posted on Diego GamboaTrustindex verifies that the original source of the review is Google. They fixed all the plumbing in my house and installed 3 units in the airbnbs that I have, amazing work. On time ! Gustavo is amazing and very professional, they know what they are doing. Highly recommended ! Very satisfied with the work they did. Very happy with Ivan, joel and abraham amazing work.Posted on Louise SmithTrustindex verifies that the original source of the review is Google. Very friendly. Courteous. Fix my problem in less than an hour. Show me what was wrong. This is the second time I've call them with plumbing problems. The last time was about a year ago. I will always call this company. Very reliable. I would recommend them to all my friends that have plumbing or cooling problems.Posted on Sylvia CarrenoTrustindex verifies that the original source of the review is Google. If you're looking for a good plumber, this is the company to call. I highly recommend. Louie and Joel were very professional, efficient, friendly, and did a great job fixing my shower issue. Thank you both for your awesome service.Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
Quick Fix in Mesilla Park
We had a couple in Mesilla Park call us after waking up to 55° inside. Their furnace was running, but no heat. Turned out the filter was so clogged it choked the airflow. We swapped it out, cleaned the blower, and had the heat back in 30 minutes. Simple fix — but they’d been freezing for days.
Furnace Trouble at a Small Business in Mesilla
We once helped a little bakery off Avenida de Mesilla. Their heater quit right before a weekend rush. Their dough wouldn’t rise, and customers were bundled in coats. We found a failed control board and had it replaced the same day. They didn’t lose a single hour of service. That’s the kind of work we’re proud of.
Common Furnace Problems We See Around Las Cruces
Some issues are more common in certain areas:
Dust buildup is worse in homes near open fields, like Vado and Fairacres
Old ignitors fail often in houses built before 2000, especially in Mesilla Park
Oversized units are common in new builds around Sonoma Ranch — they short-cycle and waste energy
Improper duct design in remodeled homes near University Park leads to cold spots and airflow issues
Knowing how homes are built in Las Cruces helps us find and fix problems faster.
Do Businesses Need Furnace Repair?
Absolutely. We’ve worked on:
Office buildings near Downtown Las Cruces
Auto repair shops on Valley Drive
Restaurants near University Ave
Medical clinics in Las Alturas
If it heats up a space, we can fix it — fast, clean, and without slowing down your day.
Furnace Repair vs Replacement — What We Think
Some companies will push you to replace your furnace right away. We don’t.
Here’s how we break it down:
If the unit is under 15 years old, a repair is usually the better option
If the heat exchanger is cracked or repairs cost over 50% of a new unit, we’ll talk about replacement — not before
We give our honest take, every time. We don’t sell what you don’t need.
Keep Your Furnace Healthy
Here are a few quick ways to keep your system running right all winter:
Keep your thermostat batteries fresh — it solves half the “my heat won’t turn on” calls
Make sure your outside vents aren’t blocked by leaves, dust, or animals
Don’t shut too many vents — it throws off pressure and makes your furnace work harder
Always call for help if you smell burning plastic or gas
We keep it simple:
No hard sells
No upsell packages
No hidden fees
Just real heating service that works. Fast.
Reviews from Customers around Las Cruces
“Our heat quit right before Christmas. Gustavo came the same day and fixed it in under two hours. No pressure, no upsell — just real help.” — Jorge T., Alameda-Depot
“I called three places and no one answered. A to Z picked up, showed up, and solved the issue fast. Will call again if I ever need heating help.” — Maria K., Sonoma Ranch
Emergency Call in Tortugas
Last winter, we got a call from a family in Tortugas just after midnight. Their furnace stopped working, and the home was dropping below 50 degrees inside. We were on-site before sunrise, found a shorted limit switch, and had the system running before breakfast. They were surprised we even answered the phone — we just call that doing the job right.








We Work on All Major Furnace Brands
We service and repair all major heating system brands in Las Cruces, including:
Goodman
Rheem
Trane
Carrier
Lennox
American Standard
Bryant
York
Ruud
Payne
Tempstar
Amana
And more
Whether your unit’s brand new or 20+ years old, gas or electric — if it heats your home or business, we’ve probably fixed it before.
Serving Las Cruces & Nearby Areas
We’re located in Las Cruces, 88005, and we serve all surrounding communities, including:
Mesilla
Sonoma Ranch
Picacho Hills
Alameda-Depot
University Park
Doña Ana
Fairacres
Vado
Mesquite
Radium Springs
If your home is within 40–60 miles of Las Cruces, we’ve probably worked near you.
Messy Repair Follow-Up in University Park
A customer in University Park reached out after another company installed a new gas furnace but left behind a mess — parts on the ground, wires barely taped, and no airflow to two of the bedrooms. We fixed the install, cleaned up the mess, and balanced the ductwork. That homeowner now recommends us to everyone on their block.
Heating Fix for a Rental in Vado
We’ve done a lot of work on rentals in Vado, especially older duplexes with wall furnaces or combo units. One unit wouldn’t start, and the tenant had been using space heaters for a week. We found a stuck gas valve and got it replaced same day — heat was restored, and the landlord finally had a vendor they could trust.
Heater Issues at a Shop Near Valley Drive
There’s a small detailing shop off Valley Drive that kept losing heat overnight — the furnace would shut off around 2 a.m. and not restart until morning. Turns out the thermostat was wired through a faulty breaker. We re-ran the connection, replaced the board, and that shop’s been warm ever since.
Furnace Tune-Up Blitz in Sonoma Ranch
Before the first cold snap last fall, we did back-to-back furnace checkups in Sonoma Ranch — five homes in one day. Every system had some sort of issue: dirty filters, weak ignitors, loose wires, or airflow problems. No breakdowns were reported that winter. That’s the kind of proactive work that makes a difference.
Furnace Noise Call in Fairacres
We had a homeowner in Fairacres call about a loud banging noise every time their furnace kicked on. Turns out the ductwork was expanding too fast from heat buildup — the blower speed was set too high, and the return was undersized. We reprogrammed the board, adjusted the flow, and added a return grill. No more noise, and the home heats up more evenly now.
⭐ What Customers Are Saying
📞 Call or text A to Z Plumbing Heating and Cooling LLC
🕒 Same-day appointments available
🌙 Emergency HVAC service 24/7
Quick FAQ — Furnace Repair in Las Cruces
Q: Do you offer emergency repair?
Yes. If your furnace quits at night or over the weekend, give us a call. We’ll do our best to get there fast.
Q: How long does a typical repair take?
Most fixes take 1–2 hours. Bigger issues like blower replacements might take a half day.
Q: Can you work on older systems?
Yep. We’ve worked on furnaces from the 1980s and up. If it still runs (or used to), we’ll take a look.
Q: Will you clean up after the job?
Always. We treat your home like our own. No mess left behind.
Q: Do you service rental properties?
All the time. We work with landlords, property managers, and tenants across Las Cruces.
Final Words from Gustavo, Owner of a to z plumbing heating and cooling llc
I started this company because people in Las Cruces deserve heating work they can trust. I’ve got a family too — and I’d want someone to show up, tell the truth, fix the problem, and clean up after themselves.
That’s how we do things here.
If your furnace needs help, let’s get it taken care of. The cold isn’t waiting.
Quick Service On Emergency Call - 24/7
Call now to hire our drainage expert to fix your furnace problem in Las Cruces & nearby areas
