Ductwork Installation & Repair Service in Las Cruces

Hi, I’m Gustavo—owner of A to Z Plumbing Heating and Cooling. I live right here in Las Cruces, and let me tell you something from experience: bad ductwork makes everything worse.

A couple years back, I visited a house off Roadrunner Parkway. Nice family, two kids, dog named Bubbles. But their house felt like two different worlds—freezing cold in the living room and boiling hot in the bedrooms. Their AC wasn’t broken. The problem? Old ductwork. Full of gaps, leaks, crushed spots. Air wasn’t going where it needed to go.

We fixed it. Sealed the gaps. Replaced sections. Balanced the airflow. And you should’ve seen their faces when the temperature felt just right in every room.

That’s what this page is about. Helping folks in Las Cruces—whether you’re in Sonoma Ranch, Mesilla, or out near Dona Ana—get their ductwork right. Because if the air can’t move right, your whole HVAC system is working twice as hard. And you’re still sweating.

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So What’s Ductwork, Anyway?

Ductwork is like the road your air travels on. Your heater or AC makes the air, but it’s the ducts that carry it to each room. When those ducts are clean, sealed, and shaped right, your home feels good. When they’re not, the whole system struggles.

Here’s what can go wrong:

  • Leaky ducts: Air escapes before it gets where it’s supposed to go.

  • Crushed or bent ducts: Air can’t move at all.

  • Bad layout: Some rooms get all the air, others get nothing.

  • Old insulation: Hot air leaks in during summer, cold in winter.

And when one thing’s off, you feel it—room too hot, dust in the air, noisy vents, and big power bills.

Why Las Cruces Homes Struggle with Ductwork

Las Cruces weather doesn’t play around. Hot summers. Cold nights. Dust storms. Rodents. That all beats up on ductwork fast. Especially in homes built before 2000, we see a lot of:

  • Sagging flexible duct lines

  • Cracked metal seams in the attic

  • Insulation eaten by critters

  • Ducts run through hot garages or poorly sealed crawlspaces

A guy in Las Alturas called me last summer. Said his AC was “working overtime.” When we checked the attic, he had three ducts fully disconnected. The cold air was blasting into the attic instead of the house. Fixed it that same day. AC started cycling normally again. That kind of stuff happens more than you’d think.


When You Might Need Ductwork Repair or Replacement

If you’re wondering whether your ductwork is a problem, here’s what to watch for:

  • Some rooms are hotter or colder than others

  • Your energy bill keeps creeping up

  • You hear whistling or rattling in your vents

  • Your system runs a long time but doesn’t cool well

  • You just got a new AC but it’s still not comfortable

We had a local bakery on Main Street call us because their cooling wasn’t keeping up in the kitchen. Turned out, they had one supply duct crushed behind a shelf and two return ducts pulling hot air from the oven space. We re-routed the lines and boom—cool kitchen, happy staff, better croissants.

Ductwork Services We Offer in Las Cruces

Whether it’s a quick fix or a full install, we handle it all:

Ductwork Repair

  • Sealing leaks with mastic and tape that actually holds

  • Reconnecting joints

  • Reinsulating lines that get too hot

  • Removing crushed or damaged sections

Ductwork Installation

  • Full layout planning for new homes or renovations

  • Custom metal and flex duct runs

  • Air balancing so every room feels right

  • Return air setups so your system breathes better

System Checks & Testing

  • Static pressure readings

  • Duct leakage testing (good for getting rebates too)

  • Camera inspections inside the ducts

Upgrades & Retrofits

  • Swapping out old flex ducts with better ones

  • Adding returns for better airflow

  • Rerouting to avoid hot attics or tight bends


24/7 Emergency ductwork services

📍 Located in Las Cruces, NM 88005
📞 Call or text A to Z Plumbing Heating and Cooling LLC
🕒 Same-day appointments available
🌙 Emergency Ductwork Service 24/7

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Why This Stuff Matters for Your Health & Wallet

Bad ductwork isn’t just annoying—it costs you. Most people lose 20% to 30% of their air before it even hits the room. That’s air you paid to cool or heat.

And when ducts suck in air from dirty attics or crawlspaces, you’re breathing that junk in. We had a guy near Telshor with duct leaks pulling in insulation dust. His kids kept coughing at night. After we sealed everything up and cleaned the ducts, the air felt cleaner—and they all slept better.

Plus, when your HVAC doesn’t have to push against leaks or kinks, it lasts longer. That means fewer breakdowns and more years before you have to replace it.

Why Folks in Las Cruces Call Us

Look, I’m not going to throw around buzzwords or try to sound fancy. We’re locals. We answer our phones. We show up. And we fix stuff right.

If I wouldn’t install it in my own house, I’m not putting it in yours.

Our crew has worked everywhere from mobile homes in Fairacres to big custom houses in Picacho Hills. We know how to crawl through tight attics in the heat, deal with angry raccoons in the duct lines, and spot bad airflow setups in five minutes flat.

We do what we say. And we care because this is our home too.

How Much Does Ductwork Cost?

  1. Here’s the honest answer: it depends.

    A small repair might run $200 to $500. Full replacement for a 1,500 sq ft home might be $2,500 to $5,000 depending on layout, materials, attic access, and how weird the existing setup is.

    We’ll come out, take a look, and give you a real quote. No pressure, no weird upsells.

Real People. Real Fixes.

Here are a few stories from around town:

🛠 Mr. Sanchez in Mesilla had two rooms that stayed hot all summer. We found a duct run that was crushed under attic insulation. Pulled it out, re-supported it, and added a damper to balance airflow. His power bill dropped by $40 the next month.

🧁 Cynthia at the strip mall off El Paseo called about poor AC in her shop. One quick test showed her returns were way undersized. We added one more, sealed everything, and now her AC cycles less and cools more. She said she stopped “melting cupcakes.”

🐭 Jim in Dona Ana had critters living in his ducts. Mice. We removed them, sealed the holes, and sanitized everything. His wife said she sleeps easier now knowing the air is clean.

Ready to Talk?

  • If you think your ductwork might be the problem—or you’re just tired of sweating in your own house—let’s talk. I’ll come by, take a look, and explain what I see. Free quote, real answers, no sales pitch.

    Call or text us today. Or hit that contact form on the site.

    At A to Z, we fix what matters. And air that moves right? That matters a lot.

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.

Why Las Cruces Homes and Ducts Don’t Always Get Along

Here in Las Cruces, we deal with brutal summers, crazy temperature swings, and a lot of dust. That combo eats up ductwork fast.

A lot of homes—especially out in Sonoma Ranch, Las Alturas, and off Bataan Memorial—were built in the 80s or 90s. Back then, folks used metal duct with cheap tape or old-style flex duct with thin plastic. That stuff cracks. Sags. Breaks apart over time.

We had a guy off Jornada Road whose duct insulation had melted from attic heat. The air was getting cooked before it even hit the vents. We swapped in new R-8 flex with proper strapping and insulation, and his cooling bill dropped almost 25%.

Signs You Might Need Duct Repair or Replacement

Here’s what to watch for:

  • Rooms feel different – Cold in one, hot in another? Could be airflow issues or collapsed ducts.

  • Loud airflow – Whistling or banging sounds usually mean bad joints or pressure issues.

  • Dust everywhere – Leaky ducts suck in attic air. That’s insulation, dust, and sometimes critter stuff.

  • Bad smells from vents – Mold or animal mess inside ducts can push smells into every room.

  • High bills – If your energy use is high but comfort is low, your ducts might be leaking.

A lot of people think the AC or heater is the problem—but honestly, in about 40% of the service calls we get, it’s the ductwork.

What We Do (And Do Right)

We’ve fixed ductwork in trailers off Valley Drive, restaurants near the university, and big ranch homes past Talavera. Here’s what we offer:

Ductwork Repair

  • Find and fix air leaks

  • Reconnect fallen duct lines

  • Patch holes from mice or damage

  • Add proper straps and supports

  • Replace crushed or kinked flex duct

Duct Replacement

  • Remove old, damaged ductwork

  • Install new lines with better insulation (R-8 or better)

  • Make sure air gets to every room evenly

  • Use proper fittings—no tape-and-hope jobs

Custom Duct Layouts

  • For new construction, remodels, or HVAC upgrades

  • Designed to match your system and home size

  • Helps reduce run time and save money

Air Balancing

  • Adjust airflow so each room gets what it needs

  • Add or move supply and return vents if needed

  • Make small rooms and big rooms feel the same

We don’t just patch it up and leave. We test the airflow, pressure, and even measure temperature differences across vents. Because a half-fixed duct job still costs you money.

Why This Work Matters

Bad ductwork is like having holes in your wallet. Every leak is cooled air or warm air that you paid for—but never feel.

And it’s not just comfort. Poor ductwork:

  • Wears out your HVAC faster

  • Raises your monthly bills

  • Kicks dust and allergens into your house

  • Makes your system run longer than needed

We had a bakery owner off Lohman who said her AC ran constantly. Her kitchen staff was roasting. We checked the ductwork and found three major leaks—one dumping cool air behind a wall cavity. Fixed those, re-routed a return, and now her space stays cool even when the ovens are on.

Pricing for Duct Services in Las Cruces

Let’s be real—cost depends on what’s going on.

✅ Small repairs like sealing leaks or fixing loose duct runs usually run $250–$600
✅ Full duct replacements in homes run $2,000–$5,500 depending on size and layout
✅ New ductwork installs in remodels or additions vary case by case

We always give a clear price. No bait-and-switch. No “surprise fees.” We explain what we see and let you decide.

⭐ What Customers Are Saying

Shela W.
Shela W.
Las Cruces
They showed up exactly when promised, removed the old ductwork, and installed everything with great attention to detail. The new system looks clean, works flawlessly, and they left no mess behind. Super impressed!
Zack B.
Zack B.Las Cruces
After replacing the old, leaky ducts in our attic, we immediately noticed our AC wasn’t working as hard — and our energy bills went down! Great crew, fair pricing, and top-quality workmanship.
📞 Ready to Fix or Upgrade Your Ductwork Installation?
If your air conditioner’s on its last leg, your heater’s blowing cold, or you’re just tired of getting the runaround from big companies — give us a call.
📍 Located in Las Cruces, NM 88005
📞 Call or text A to Z Plumbing Heating and Cooling LLC
🕒 Same-day appointments available
🌙 Emergency Ductwork Installation Service 24/7

Common Ductwork Questions (Real Ones from Las Cruces Folks

Why is one room always hotter than the rest?

A guy out in Northrise asked us this last summer. His son’s room was blazing hot, even with the AC blasting. Turns out, the duct feeding that room was half-crushed under insulation and barely pushing any air. We replaced the section and supported it right—it cooled down within the hour.

Yep. A family in Mesilla Park was seeing high energy bills but didn’t know why. Their system was fine, but their ducts had major leaks in the attic. So the air they paid to cool was just dumping into the attic. We sealed the joints and wrapped the ducts again. Next bill? Way lower.

Whistling usually means air is squeezing through a gap or bad seal—like when you pinch a balloon. One lady in Organ had us check hers—it was a small crack in a return duct pulling air from the attic. Not only was it noisy, but it was dragging in dust. Easy fix, but left alone, it could’ve grown into a bigger leak.

Unfortunately, yes. One home near Alameda had mice chew straight through flex duct. We found shredded insulation, droppings, and a chewed-up vent boot. We cleaned it up, replaced the line, and patched up the entry point in the attic. If your ducts smell weird or your airflow’s weak, this could be the reason.

Not always. If your ductwork is in good shape, we’ll keep it. But if it’s old, leaky, or not sized right for your new system, it makes sense to replace it too. We had a customer off Bataan Memorial who upgraded his AC but kept the old ducts. It worked, but airflow was terrible. Once we replaced the ducting, the whole house felt better and the unit didn’t have to run as long.

How do I know if my ducts are leaking?

A homeowner near Elks Drive called us because his AC ran all day, but the house never got cool. We popped our head into the attic and found three flex lines with wide open gaps at the boots—basically dumping cold air straight into the insulation. If your system runs nonstop, and your power bill keeps climbing, that’s a red flag. You won’t always see leaks, but you’ll feel the symptoms: uneven temps, weak airflow, and high bills.

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