Qualified Insulation Contractor in Bellingham WA - Warmer Rooms and Fewer Drafts
Thermal Bellingham Insulation Company adds attic insulation and seals drafty houses in Bellingham and nearby cities like Ferndale and Lynden. We also insulate crawl spaces under older homes and pull out old insulation that's wet or full of droppings.
- Sealing comes first We close gaps around lights, pipes and the attic hatch first.
- Even to the edges New insulation reaches the eaves instead of piling up in the middle.
- Eave vents kept clear We keep the vents open so your attic can still breathe.
- Clean work areas We cover floors and walkways, then clean up before we leave.
- Licensed and fully insured.
- Free on-site estimates.
- Expect a reply within 1 business day.
Tell us about your insulation job
Tell us which rooms feel drafty or cold and how old your house is. We reply within one business day to set up your free on-site estimate, with no obligation, and our contact page lists other ways to reach us.
- I come out myself I look at your attic, crawl space or walls in person and build the plan with you, so it fits what's actually there.
- Every step in order Your written plan lists each step in the order we'll do it, so you can see what comes first and why.
- Updates when plans change I used to run schedules for a busy contractor, so you'll know what each visit is for and hear from us if anything changes.
- Rentals and landlords too We also work for landlords and property managers, so a cold rental unit gets the same checks and written plan as a family home.
Why Bellingham homeowners call our insulation crew
When you hire an insulation crew, you should know what's going into your house, why, and in what order. Here's how we work, and you can read more about us.
You'll understand it before you agree
I walk you through what's going on in your attic or crawl space in plain words, one step at a time. You decide on the plan once it makes sense to you, not before.
We stop when something looks wrong
If we find old wiring, a roof leak or insulation that looks suspect, the work pauses and I tell you straight. Covering a problem with new insulation only hides it until it costs more.
A walk-through when we finish
Our installers do the work, and when they're done I walk through the finished job with you. You see the depth, the sealed gaps and the clear vents for yourself.
Based in Bellingham, insulating the houses around us
We're based in Bellingham, and most of our calls here come from older, drafty houses and rentals in neighborhoods all over the city. It's a city people know by its places. Whatcom Falls Park in the Whatcom Falls Neighborhood has a fish hatchery, a creek bridge and picnic shelters. The Whatcom Museum fills three buildings in the downtown Arts District with art, nature and Northwest history. The city calls Lake Padden Park the jewel of its park system, with lake beaches, a dog park and miles of trails.
A Bellingham mailing address doesn't always put you inside city limits, because many addresses here belong to unincorporated areas. That decides which office has a say over your job, so before we schedule anything we check with the city or county office that covers your address and walk you through what they need from us or from you. We follow the same order in Ferndale, Lynden and the other cities around us.
Insulation contractor work for Bellingham, WA homes
Thermal Bellingham Insulation Company is an insulation contractor in Bellingham, WA, and our 16 services cover attics, walls, crawl spaces, basements and the air leaks between them. Most calls start with a hot upstairs, cold floors or a power bill that keeps climbing. The price turns on how much area we're covering, what's already up there, whether old material has to come out first and which material suits your house. The schedule turns on how easy the space is to reach and how many steps the plan has. Your free on-site estimate comes with a written plan listing each step in order.
Spray foam insulation
Spray foam fills and seals in one pass, so it suits rim joists, odd framing and attics where ductwork runs.
Attic insulation
Hot upstairs? We check how many inches are already in your attic, seal the gaps, then add an even layer to the edges.
Blown-in insulation
Blown-in insulation is loose fill sent through a hose, a good way to top up an attic or fill closed walls.
Home insulation
For the whole house, we start with the checks and work out which rooms, walls and floors need help first.
Insulation removal
When old insulation is soaked or full of droppings, we pull it out so the new layer starts clean.
Crawl space insulation
Cold floors? We insulate the crawl space under your house so the rooms above it hold their heat.
Wall insulation
Got walls that feel cold? We fill empty wall cavities in older houses through small holes that get patched afterward.
Air sealing services
Drafty house? Air sealing closes the gaps around outlets, pipes and trim throughout the house so warm air stays inside.
Basement insulation
We insulate basement walls and the rim joist, the band of wood on top of the foundation where cold sneaks in.
Closed-cell foam insulation
Closed-cell foam is dense foam that also blocks moisture, a good fit for rim joists, crawl spaces and tight spots.
Open-cell foam insulation
Open-cell foam is a lighter, softer foam that seals air as it fills rooflines and wall cavities.
Commercial insulation
Landlords, property managers and small businesses call us for rentals and commercial spaces, and we plan the work around the people inside.
Crawl space vapor barrier
A crawl space vapor barrier is a heavy plastic sheet over the dirt that keeps ground moisture out of the space under your house.
Vapor barrier installation
We install vapor barriers in walls, floors and crawl spaces where moisture needs to stay on one side of the insulation.
Attic air sealing
Before we add an inch to your attic, we seal the gaps around can lights, pipes and the hatch from above.
Retrofit insulation
Retrofit insulation adds insulation to a finished older house, filling walls, attics and floors that were built with little or none.
Examples of insulation work
Look through these examples of attic, wall, crawl space and foam insulation to get a feel for what each kind of job involves.
Insulation questions from Bellingham homeowners
These are the questions people ask us most about insulation in Bellingham. If your house doesn't fit any of them, call or send the form and ask about your own job.
How much does it cost to insulate an attic in Bellingham?
The price comes from your house, so I give you a figure after seeing the attic, not over the phone. A tight attic takes longer to work in, and sealing gaps or freeing buried eave vents adds steps before any insulation goes in. Your free on-site estimate comes with a written plan of those steps.
Do I need to remove old insulation before adding new insulation?
Only if it's wet, full of droppings or otherwise suspect, because new material over a bad layer keeps the problem in your attic. Dry, clean insulation can usually stay and be topped up, which keeps the cost down. I check what's up there before we price anything.
How long will an insulation crew be in my attic, and do we have to leave?
That depends on the size of the attic, how easy it is to get into and whether sealing or removal comes first. Your written plan lists each visit in order. If the plan uses spray foam, there's a re-entry time, a wait before you and your pets come back inside, and we go over it with you before the job.
Is Thermal Bellingham Insulation Company licensed and insured in Washington?
Yes, we're licensed and fully insured. Washington requires every construction contractor to register with the state Department of Labor & Industries. The state also requires registered contractors to give you a disclosure notice on residential jobs of $1,000 or more.
What happens after I ask for an insulation estimate in Bellingham?
We reply within one business day and set a time for me to come out, look at the job and build the plan with you. You get a written plan that lists each step in the order we'll do it, with no obligation. If you go ahead, our installers do the work in that order.
Do you guarantee your insulation work?
Yes, our work is backed by our satisfaction guarantee. If anything on the plan isn't clear before we start, ask, because I'd rather explain it twice than have you guess.
Is spray foam better than blown-in insulation for an attic?
For most attics, sealing the gaps and topping up blown-in insulation is the better buy than foam. Foam costs more and seals air while it insulates, so it earns its place mainly when your ductwork runs through the attic.
Do I need a permit for insulation work in Bellingham?
Ask the office that covers your address, because the answer depends on where you live and what the job involves. Inside city limits that's the City of Bellingham permit center, which takes building applications by email at permits@cob.org. As mentioned above, we check with the right office before we schedule your work.
Insulation work in and around Bellingham
Thermal Bellingham Insulation Company is based in Bellingham, WA, and works in the cities around it, including Ferndale and Mount Vernon. The 9 areas below have their own pages, and we work in other nearby cities too.
Talk with us about your Bellingham insulation job
Call (360) 255-0276 or send the form for a free on-site estimate, and you'll hear back within one business day.
