Hot rooms, drafts around the house or a power bill that keeps climbing usually mean air is slipping through gaps we can find and seal.
Air sealing services in Las Cruces close the cracks, holes and gaps where air moves between your house, the attic and the outside, so the cool air you pay for stays in your rooms. Insulation slows heat the way a sweater does, but it can't stop air pushing through a gap, and that's the job sealing does.
Most calls start with a room that won't cool down, a draft by a door or a bill that keeps going up. A few of those leaks are easy to spot. The ones that cost you most usually sit in the attic floor, around light fixtures, pipes, wires and the hatch, buried under insulation where nobody has looked in years.
The price and the schedule turn on what's up there. How many openings there are, how deep they're buried and whether anything has to be fixed first, like a roof leak or old wiring, all change the job. So does a permit, if one is needed, and whether you add insulation at the same time. After I've looked, I write out each step so you can see what you're paying for.
Air sealing goes wrong when it's done in the wrong order. These are the things I look at first, because each one decides what happens next in your attic.
Drafty rooms, one room running warmer than the next and high cooling or heating bills are the usual signs. Dust is another, especially in bedrooms right under the attic, because air pulled through gaps in the ceiling carries it in. Tell me which rooms bother you most, and I'll start looking above them.
A wet spot from a roof leak, mold on the rafters or an attic with almost no airflow needs fixing before anything gets sealed. Knob and tube wiring, the old style with porcelain knobs found in houses built before 1930, can be a fire hazard when insulation touches it. If I find any of that, it goes on the estimate as step one.
If you're adding insulation to a vented attic, every opening through the attic floor should be sealed first, because new insulation over an open gap just has air blowing through it. That means around can lights, pipes, wires and the hatch. It also means keeping the vents along the roof edge clear so the attic can still breathe.
Here's how a job runs from your first call to the last look in the attic, and who you'll be dealing with at each step along the way.
Call (575) 222-9021 or fill out the form on this page and tell me which rooms run hot or drafty. We'll set a time that works for you, and I'll come out to look.
I come out myself, get up in the attic and write down what I see, including anything that has to be repaired before sealing. You get a written estimate that lays out each step in the order we'll do it.
If the job needs a permit, we apply for it and set up the inspections, and the city issues it after reviewing the application. Then our crew seals the leaks in the order the estimate lays out.
I run each job and go over the finished work before we pack up. I'll show you what we sealed and point out anything you should keep an eye on.
Some leaks you can seal yourself, and I'll show you which ones while I'm out there. A tube of caulk or some weatherstripping costs little, and you don't need us for it. The leaks we're there for are the hidden ones, the gaps in the attic floor under old insulation. We pull that insulation back, seal each opening, then put it back or add to it.
We match the material to the gap, caulk for thin cracks, canned foam for bigger holes and materials made for heat around hot flues. Some jobs call for closed-cell foam insulation, a dense foam that blocks moisture and seals air while it insulates. Which way makes sense for your attic comes down to the two choices below.
Before we make a house tighter, I check how it gets fresh air and look at anything that burns gas, like a furnace or water heater, because those need air to run safely. If you have a basement, I check where the house sits on the foundation too, since that's a common leak, and basement insulation can follow once it's sealed.
We seal the openings in the attic floor, then add blown-in insulation, loose fill blown through a hose, over them. For most attics this usually wins, because it does the job and keeps the cost down.
Foam seals the gaps and insulates in the same step, but it costs more. I suggest it mostly when your ductwork runs through the attic, since that space matters more when the ducts live there.
We reply within one business day. The estimate is free, done on site and comes with no obligation. Once you send this, we'll set a time for me to come out, look over your attic and write out each step of the job.
(575) 222-9021The City of Las Cruces issues permits for most building projects after reviewing an application, and the state's rule is that a house gets a permit before it's altered, repaired or improved, unless the work falls under one of its listed exceptions. Neither settles whether air sealing alone needs one, so before work starts I check with the office that covers your address, and if it does, we apply and set up the inspections.
The state energy code puts Las Cruces in climate zone 3B, which is where the code's insulation rules for your house come from. Most of our calls here are about cooling, not heat, with rooms that bake by afternoon, high summer bills and attics nobody has opened in years.
We're based in Las Cruces and work across the cities around it, including Chaparral and Anthony. The houses and attics there are much the same, so the job runs the same way, starting with a look in the attic before anyone talks about a price.
I learned this trade under an old-school boss who made me tear out and redo anything that wasn't right. I started Prime Las Cruces Spray Foam Insulation in 2023 after years on his crews, and I still work the way he taught me. Insulation over a leak, bad wiring or gaps nobody sealed is money thrown away, so I'd rather tell you a job isn't ready than do it wrong.
I do the estimate visit myself. Our crew does the work, and I run each job and check it before we leave. New Mexico requires a state license for anyone who offers construction contracting, and we're licensed and insured. Our work is backed by our satisfaction guarantee.
If your house has a room that won't cool down, call (575) 222-9021 or send the form, and tell me what's going on.
If moisture is part of the problem or the ducts run through your attic, dense foam that seals and insulates in one pass may fit better than caulk and loose fill.
Once the gaps along the foundation are closed, insulating the basement walls helps those rooms stay closer to the temperature upstairs.
We're based in Las Cruces, NM and seal attics across the cities around it, including Chaparral, Anthony and Canutillo, TX. If your city isn't listed here, call and ask.
Yes, for the obvious ones. Gaps around door frames and where pipes, vents and wires pass through outside walls are fair game for caulk and weatherstripping. The small leaks hidden in the attic under the insulation are different, because you can't find them by looking, and those are the ones we come out for.
It's safe when it's planned for. Sealing a house can trap carbon monoxide, radon and fumes from things like paints and cleaners, so the job sometimes calls for a ventilation fan or a fix where the problem starts. That's why I look at fresh air and anything that burns gas before we seal.
ENERGY STAR puts it at up to 10% off your yearly energy bills when sealing and insulation are done together. That figure comes from both steps, not sealing alone, so it's worth pairing them if your attic needs both. The house usually feels more comfortable too.
I can't give you a fair number until I've been in your attic, so the price comes from the estimate visit. How many openings there are, how buried they are and any repairs that have to come first set the number. Call (575) 222-9021 to set up a time.
That turns on what's in your attic, and I'll tell you once I've looked. A clean attic with easy access goes faster than one that needs a roof leak fixed, old wiring dealt with or a permit first. The estimate lays out the steps in order so you can plan around them.
Make a note of which rooms run hot, cold or drafty, which ones collect dust and roughly what your bills have been. Clear a path to the attic hatch so I can get up there without moving furniture. That's enough for me to know where to start looking.
If new insulation is on your list, call (575) 222-9021 or send the form first, because sealing the attic floor afterward means pulling that insulation back up.
