Spray Foam Insulation
Open and closed-cell foam that seals and insulates in one step — the single biggest upgrade for a Texas home.
- Roof deck & walls
- Air barrier + R-value
- Certified installers
4.7 GOOGLE RATING · 100+ REVIEWSAUSTIN, TEXAS
Your Austin home
shouldn't cost this much
to keep cool.
Spray foam, attic insulation and air sealing done to building-science standards. We find where your house is leaking money — then fix it for a flat, written price.
Free inspection & written estimate · Licensed & insured · No pressure
- Lower Energy Bills
- Stop paying to cool a 140° attic
- Even Temperatures
- No more hot upstairs, cold floors
- Cleaner Indoor Air
- Dust, pests and humidity sealed out
- In-House Foam Crews
- Trained Austin installers, no subs
Locally OwnedLicensed & InsuredFree EstimatesProfessional InstallationHonest PricingEnergy Efficient Solutions
WHAT WE DO
Insulation done to building-science standards
Every Stellrr scope starts with the same question: where is your home losing air? Then we choose the material that actually solves it.
Attic Insulation
Bring your attic up to modern R-value targets so your AC stops fighting a 140°F space above your ceiling.
- R-38 to R-60 builds
- Deck & floor systems
- Baffles and dam-outs
Blown-In Cellulose
Dense, borate-treated cellulose that settles into every cavity for quiet, even, high-performance coverage.
- Recycled content
- Fire & pest resistant
- Depth-verified install
Batt Insulation
Precision-cut fiberglass and Rockwool batts for walls, floors and interior sound assemblies.
- Rockwool options
- No gaps or compression
- Great for remodels
Insulation Removal
Full vacuum-out of tired, wet or contaminated insulation with containment so nothing spreads into your home.
- HEPA vacuum system
- Floors fully protected
- Debris hauled away
Air Sealing
We find and close the leaks — top plates, can lights, chases and penetrations — before adding insulation.
- Leak mapping
- Foam & caulk detailing
- Measurable results
Rodent Contaminated Removal
Contaminated insulation removed, the cavity sanitized and deodorized, then rebuilt clean and sealed tight.
- Containment & PPE
- Sanitize + deodorize
- Entry points sealed
Crawl Space Insulation
Encapsulation, vapor control and foam so the space under your floor stops feeding humidity upstairs.
- Vapor barriers
- Rim joist foam
- Moisture control
Soundproofing
Media rooms, shared walls, offices and nurseries — assemblies designed to actually stop sound transfer.
- Wall & ceiling systems
- Rockwool Safe'n'Sound
- STC-focused design
Energy Efficiency Upgrades
A whole-home look at the building envelope so every dollar you spend buys the most comfort back.
- Home envelope review
- Prioritized scope
- Utility bill impact
Not sure which one your house needs?
We measure what's up there and put a recommendation in writing — including when the honest answer is that you don't need us yet.
WHY HOMEOWNERS CHOOSE STELLRR
The crew Austin calls when the last contractor got it wrong
A lot of our work is fixing someone else's. We'd rather be the company you only have to hire once.
- Locally Owned
- Austin-based, Austin-run. We know how Central Texas heat, humidity and 1970s attics behave.
- Licensed & Insured
- Fully licensed and insured with trained in-house crews — never rotating day-labor subs.
- Honest Pricing
- Flat written pricing before we start. No change orders halfway through the job.
- Professional Installation
- Depth verified, coverage documented, floors protected and the site left cleaner than we found it.
- Energy Efficient Solutions
- We fix the air leaks first so the insulation you pay for actually performs.
- Healthier Homes
- Contamination removal, sanitizing and sealing so what's in your attic stays out of your air.
4.7★
Google rating
100+
Homeowner reviews
1 Day
Typical attic job
BEFORE & AFTER
Real Austin attics, real transformations
Old, dusty, uneven insulation removed under containment — replaced with a sealed, level, high-performance system.
BEFORE40-year-old contaminated batts
Compressed, dusty and full of gaps. R-value on paper, almost nothing in practice.
AFTERAir sealed + blown-in cellulose
Leaks sealed, depth verified, even coverage edge to edge. Bills and hot rooms both drop.
CRAWL SPACE ENCAPSULATION
"Our bottom floor is no longer freezing."
Sealed rim joists, closed-cell foam and a full vapor barrier turned an unusable, humid crawl space into part of the conditioned home above it.
Check My Crawl SpaceOUR PROCESS
Five steps, zero guesswork
You'll know what we found, what it costs and what happens next — before any work starts.
- 01
Free Inspection
We come out, get in the attic or crawl space, measure what's there and photograph the problems.
- 02
Clear Recommendation
You get options side by side — what each one costs, what it fixes and what we'd do in your house.
- 03
Flat Written Price
Scope and price in writing before anything starts. No surprises once the crew is on site.
- 04
Professional Install
Containment down, old material vacuumed out, leaks sealed, new system installed to spec.
- 05
Walkthrough & Cleanup
We show you the finished work, verify coverage depth and leave your home spotless.
CUSTOMER REVIEWS
100+ Austin homeowners. 4.7 stars on Google.
Every review below is from a real Stellrr customer.
4.7
100+ Google reviews
"We didn't meet Stellrr's minimum requirements because our project was too small, but Hayden was incredibly helpful, honest and professional. I would absolutely hire them for a larger project."
"Stellrr removed all the old attic insulation and replaced everything with Rockwool and new blown-in cellulose. The crew was professional, clean and thorough."
"They removed our old insulation, installed new cellulose and explained every step of the process. We immediately noticed the improvement."
"My home used to get freezing cold during winter. Stellrr helped me understand exactly what insulation I needed and the results exceeded expectations."
"Great company. Honest, helpful and they made sure every part of the job was done exceptionally well."
"Competitive pricing, excellent communication and fast installation. The team worked around other contractors and everything went smoothly."
"They corrected another contractor's poor spray foam work and added sound insulation. Excellent quality and very reasonable pricing."
"They cleaned out our attic, removed rodent contamination and installed spray foam insulation. The difference has been incredible."
"Outstanding communication, professional crew and excellent project timeline. Highly recommended."
"Professional crew, completed everything on time and the workmanship was excellent."
Your attic, inspected free — this week.
Most estimates are booked within 48 hours, and you'll leave the visit with a written price whether you hire us or not.
FAQ
Call 512-520-0044Straight answers, before you spend a dollar
Still have a question? Call and talk to someone who actually goes in attics.
SERVICE AREAS
Serving Austin and Central Texas
Based in Austin and working across the metro and Hill Country. If you're nearby and not listed, call — we probably cover you.
- Austin
- Round Rock
- Cedar Park
- Leander
- Georgetown
- Pflugerville
- Lakeway
- Bee Cave
- Dripping Springs
- Buda
- Kyle
- San Marcos
- Manor
- Hutto
- Westlake
- Spicewood
Not sure if we reach you? Call 512-520-0044
FREE ESTIMATE
Find out what your home is really costing you.
Free inspection, honest recommendation and a flat written price. If insulation isn't your problem, we'll tell you that too.
- Free attic or crawl space inspection
- Written flat price — no change orders
- Licensed, insured, locally owned
- Most attic projects finished in one day