Wilsonville based, serving Portland
Warm house. Lower bill. Done in a day.
Attic, crawl space and wall insulation for Portland area homes, installed to the R-value that actually pays back. One visit, one written price, rebates handled for you.
What we do
Ten ways to stop paying to heat the outdoors
Every job starts with a real look inside. Then we recommend the one or two things that move the needle, not everything on this list.
Attic Insulation
Blown in cellulose or fiberglass to R-49 and up, with the air sealing that makes it work.
Learn moreBlown In Insulation
Dense, even coverage in attics, walls and hard to reach spaces. Done in a day.
Learn moreCrawl Space Insulation
Floor insulation, vapor barrier and rim joist sealing for the wet Willamette Valley.
Learn moreWall Insulation
Drill and fill dense pack for older Portland homes with empty walls.
Learn moreSpray Foam Insulation
Closed and open cell foam for rim joists, vaulted ceilings, shops and additions.
Learn moreBatt Insulation
Fiberglass and mineral wool batts, cut and fitted right, for framed cavities.
Learn moreInsulation Removal
Vacuum out old, wet or rodent damaged insulation before anything new goes in.
Learn moreAir Sealing
Can lights, top plates, chases and penetrations sealed so your heat stays put.
Learn moreCommercial Insulation
Warehouses, shops, multifamily and tenant improvements across the metro.
Learn moreNew Construction
Code compliant installs for builders and remodelers, scheduled around your trades.
Learn moreWhy attics first
Most of the heat you buy leaves through the roof
Heat rises, and in an older Portland home the attic is the biggest hole in the envelope. We open up attics from the 1920s through the 1990s every week and find R-11 to R-19 where there should be R-49. Bringing that up is the single highest return home improvement you can make, and Energy Trust will pay part of it.
Most Portland attics we open up sit between R-11 and R-19. Code for a new attic is R-49. That gap is where the heating bill goes.
How it works
Four steps, no mystery pricing
Call or send the form
Tell us the city, the age of the house and what you have noticed. We will tell you on the phone whether it is worth a visit.
We measure, not guess
We get in the attic or crawl space, check the depth, the air leaks, the venting and the wiring, and photograph it for you.
One written price
Square footage, R-value, materials, air sealing and the rebate you qualify for, all on one page. Good for 30 days.
Install and clean up
Most attics are done in a day. We lay drop cloths, blow it in, bring you up to see the depth markers, and leave the house cleaner than we found it.
Rebates
Energy Trust of Oregon pays you to do this
If your attic is at R-18 or less and you bring it to R-38 or better, Energy Trust of Oregon pays $1.25 per square foot on an owner occupied home and $1.50 on a rental. Walls pay up to $2.25 and floors up to $1.25. We are set up to file it for you, so the rebate comes off your bill without a form on your kitchen table.
- Attic: $1.25 per sq ft, owner occupied
- Walls: $1.50 per sq ft, owner occupied
- Floors over crawl spaces: $0.75 per sq ft, owner occupied
- Higher rates for rentals and attached homes
Recent work
Real attics, real trucks, real depth markers
Photos from Apex jobs around the metro. Nothing staged, just what the crew sends back from the attic.
Service area
Wilsonville out to the whole Portland metro
Our shop sits on I-5 in Wilsonville, which puts most of the metro within 30 minutes of the truck.
How do I know if my attic needs more insulation?
If you can see the tops of the ceiling joists, you are under R-19 and the attic is costing you money. Other signs: rooms that never get comfortable, ice on the roof melting in patches, and a furnace that runs and runs. We check depth in a few minutes and show you photos.
How much does attic insulation cost in the Portland area?
For most homes the installed price for blown in attic insulation lands between $1.50 and $3.00 per square foot before rebates. A typical 1,200 square foot attic is usually $1,800 to $3,600. Removal, air sealing and a very low roof pitch add to that. See our pricing guide for the full breakdown.
Does Energy Trust of Oregon still pay rebates on insulation?
Yes. As of January 2026 the attic incentive is $1.25 per square foot for owner occupied homes going from R-18 or less to R-38 or more, and $1.50 per square foot for rentals. Walls and floors have their own rates. We handle the paperwork.
Cellulose or fiberglass?
Both work when installed to the right depth. We lean to dense blown cellulose in attics because it settles into gaps, resists air movement, and carries a higher R-value per inch. Fiberglass makes sense where moisture or weight is a concern. We will tell you which one fits your house and why.
Do you remove the old insulation first?
Only when it needs to go. Wet, moldy, rodent damaged or vermiculite insulation comes out. Clean, dry, thin insulation can usually be topped over. Removal is a separate line on the quote so you can see exactly what it costs.
How long does the job take?
Most attic installs are finished in one working day. Removal plus reinstall is usually two. Crawl spaces and wall dense pack depend on access, and we give you the schedule in writing before we start.
Request a quote
Get a straight answer on your attic.
Tell us about the house and we will come out, measure, and give you one written price. Rebates included, no surprises on install day.