Spray foam insulation in San Angelo TX - an upstairs that stays cool in summer
Upstairs rooms running hot and the power bill climbing? We check your attic first, then seal and insulate it the right way.
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Is spray foam the right fit for your San Angelo attic?
Spray foam insulation in San Angelo, TX is foam sprayed onto the underside of your roof or into walls, where it expands into the gaps and stops air cold. Sprayed under the roof deck, it becomes the layer that slows heat for the whole house, so the attic stops baking the rooms below it.
It usually starts with a hot upstairs, a room over the garage you can't keep cool, or a power bill that climbs every July. The price turns mostly on which foam you pick, how much area gets sprayed, how hard it is to reach, and whether old material has to come out first through insulation removal. The schedule turns on the size of the job, any venting work on a gas unit, and the time your household spends away while the foam cures. Your estimate gives you the figure for your own house.
How we do spray foam insulation
Most spray foam calls I get are about the attic, so I start with what's up there. If your ducts and air handler sit in the attic, foam under the roof deck pulls them inside the insulated part of the house, so air leaking from the ducts still cools your rooms instead of the attic. If anything up there burns fuel, like a gas furnace or water heater, it should be a sealed unit that pulls its air from outside and vents outdoors once the attic is closed up, so we sort out the venting before any foam goes on. A sealed attic also needs a way to get rid of moisture, so that goes into the plan too. Then our crew preps, sprays, and checks the edges and corners, because foam that runs thin at the eaves is where these jobs come up short.
Foam isn't always the answer. It costs more than other insulation and seals air while it insulates, but if your ducts aren't in the attic, sealing the gaps and topping up with blown-in insulation, which is loose fill blown through a hose, usually does the job for less. I'd rather tell you that than sell you foam you don't need, and our attic insulation work covers that route, including clearing out old material that's soaked or full of droppings before anything new goes down.
Foam at the roofline
This suits attics where the ducts or the air handler live, because the whole attic becomes part of the house instead of an oven above it. It's the job most people call us about.
The room over the garage
Cold floors and hot walls over a garage usually come from air moving through odd-shaped cavities that batts never fill. Foam fills those spaces and stops the draft where it starts.
Shops and metal buildings
Business owners call us about shops and metal buildings that bake in summer and sweat in winter. Foam sticks to the panels and framing and seals the seams that let heat and air through.
Spray foam insulation and permits in San Angelo
The city's Building Permits and Inspections office decides whether a spray foam job needs a permit, and it isn't something I'll guess at for your house. We check with that office on each job and take care of any permit it calls for, so you don't have to chase it.
San Angelo has averaged about 30 days a year at 100 degrees or more in recent decades, and the attic runs far hotter than that on those days. That's hardest on houses with the ducts up there, which is the setup we see on a lot of calls in San Angelo and the cities around it, and it's where foam at the roofline earns its cost.
Why San Angelo homeowners call J&M for spray foam
I look at your attic myself
I come out to each job, look things over and write the estimate, and our own crew does the install. You deal with the person who's answerable for the work from the first look to the final walk-through.
In business since 2013
I learned this trade crawling through attics with my dad and started this business in 2013. That's a lot of West Texas summers in hot attics, so I know what heat does to a house up there.
Licensed and fully insured
We're licensed and fully insured. Federal safety guidance tells homeowners to check a foam installer's training, insurance and licenses, so ask us before you sign anything.
If you're not sure foam is right for your house, that's exactly the call to make. Ring (325) 285-1301 or tell us about your attic, and I'll give you a straight yes or no.
Request a quoteGet a free spray foam estimate for your attic
Send the form and we'll get back to you within one business day to set a time for me to come out. The estimate is free, done at your house, and there's no pressure to book.
What happens after you call about spray foam
Call or send the form
Call (325) 285-1301 or use the form, and we'll set a time that works for you. Our phones are answered into the evening every day of the week, so a call after work is fine.
I look at the attic
I check the ducts, anything that burns fuel, how many inches of old insulation are up there and how old the house is. You get a price for your house and a straight answer on whether foam is worth it, usually before I leave.
Prep, safety checks, then foam
Once you say go, our crew handles prep and safety checks first, and we talk through the safety steps with you before install day. You'll be out of the house while the foam goes on and cures, so we set the date around where you'll stay.
Walk the finished job together
When the foam's in, I walk the job with you and show you the edges, the hatch and the vent work. You see what we did before we call it done.
Frequently asked questions
How much does spray foam insulation cost in San Angelo?
Across the US, installed spray foam usually runs about $1 to $5 per square foot as of 2026, and that's a national figure, not a San Angelo price or ours. Open-cell sits toward the low end and closed-cell toward the high end, and the size of the area, the access and any venting work move it from there. I'll give you a figure for your own house at the estimate.
Should I pick open-cell or closed-cell spray foam for my attic?
Under a roof deck, open-cell works as the insulation and stops air, while closed-cell does both of those and also holds back moisture, because open-cell isn't vapor tight. I'd pick closed-cell where moisture control matters and open-cell where it doesn't, and I'll tell you which one your attic calls for when I see it.
How long do I have to stay out of the house after spray foam insulation?
Federal safety guidance says to leave the house during the work and for at least 24 hours after. EPA guidance adds that you come back only once the foam has fully cured, meaning set, and the house has been aired out and cleaned, so plan a place for the family and pets for at least a day around install.
Do I need a permit for spray foam insulation in San Angelo?
That's the city permit office's call, and we check with it on each job. If it asks for a permit, we take care of it, so you don't have to.
Does spray foam in the attic need to be covered?
Some spray foams need a protective covering and some don't, depending on the product and the code. When one does, it gets a barrier like a special coating or drywall over it, and I'll spell that out in your estimate.
What causes the upstairs to stay hot even with insulation in the attic?
Usually it's air, not a lack of insulation, coming through gaps around can lights, pipes and the attic hatch, or ducts baking in a hot attic. Sealing those gaps fixes a lot of it, and when the ducts are up there, foam at the roofline is the fix I described above.
Other ways to fix a hot attic
Attic insulation
If your attic just needs more depth and the gaps closed, this is often the cheaper road to a cooler upstairs.
Blown-in insulation
Loose fill evens out thin spots across the attic floor without spraying the roofline.
San Angelo, TX
Find out if foam fits your attic
Tell us the attic's size, which areas you want foamed, and whether ducts or a gas unit sit up there, so I know what I'm walking into before I come out.