Attic insulation in Bismarck ND - warm upstairs rooms and a roof that stays cold
Cold bedrooms and a furnace that never rests usually start in the attic. We find what's missing and fix it in order.
- Licensed and fully insured.
- Free in-person estimates.
- We respond within 1 business day.
Does your Bismarck attic need more insulation?
Attic insulation in Bismarck means blowing loose-fill fiberglass, rock wool or cellulose across the attic floor, or laying batts, so the heat you pay for stays in the rooms below instead of leaking up into the roof.
Most people call because the upstairs won't stay warm or the heating bill keeps climbing. Sometimes the attic is thin, and sometimes there's plenty up there but house air is slipping straight past it, which is the job attic air sealing, closing the gaps before insulating, takes care of. What moves the price is the size of the attic, how much needs adding, how hard it is to get into and whether anything has to be fixed first, like damp insulation, bad vents or old vermiculite, a pebbly loose fill found in some older attics. Those same fixes, plus whether the city wants a permit, are what move the schedule, and the written estimate I send after looking at your attic spells out what we'd do and why.
Is attic insulation the fix for your house?
Cold rooms upstairs
Bedrooms that won't hold heat usually sit under an attic that's thin or covered unevenly.
A heating bill that climbs
When the furnace runs harder every winter, heat is often slipping up through the ceiling.
Older house, settled insulation
Loose fill in an older home packs down over the years, leaving less than it started with.
After a leak or pests
Insulation that got wet or filled with droppings has to come out before anything new goes in.
How we handle attic insulation
First I check how much is already up there, because sometimes the honest answer is that you have enough. If it needs more, we sort out what's wrong before new insulation goes in, so wet or moldy insulation comes out, bathroom and dryer fans that dump into the attic get run outside, and old vermiculite gets planned for before anyone touches it. If I find something that's another trade's job, like old knob and tube wiring, I'll tell you and it goes to an electrician first. Then the new layer goes down to an even depth that stays full right out to the edges, because thin coverage along the eaves is where most attics come up short.
When the attic floor is open, the new layer is usually blown-in insulation, loose fill sent up through a hose that settles around wires and framing. If the cold isn't only upstairs, home insulation is the bigger look at the house, and it can start from the same visit.
Blown-in loose fill top-up
This suits most attics with open joists and old insulation in decent shape. It usually costs less than batts and covers better, so it's the quote I'd have you compare first.
Batts on an open floor
Batts make sense in a small attic that's easy to move around in, or where you want to keep part of the floor for storage. Installation costs vary, so when it's close I'll price both ways.
Remove, fix, then reinsulate
When the old insulation is soaked, moldy or full of droppings, it comes out first through insulation removal, because new material on top just keeps the problem. It's more work, and it's the only way I'd do an attic like that.
What happens when you call about attic insulation in Bismarck?
Call us or send the form
Tell us what you're noticing, whether that's a cold room, a high bill or a stain on the ceiling. A few attic photos and your square footage help me get ready for the visit.
I look at the attic with you
I check how much is up there, take photos and walk you through what should be fixed first and what can wait. Then I send a written estimate that says what we'd do and why, so you can weigh it on your own time.
We fix, seal, then insulate
Problems get handled first, then we close the gaps where air leaks into the attic, and only then does insulation go in. That way nothing new goes down on top of something that's still wrong.
Walk through the finished attic
Before we pack up, I go through the finished work with you and show you the depth and the vents. Then we clean up the path we used through your house.
Spray foam or blown-in for your attic insulation?
Blown-in usually wins, unless ducts are up there.
Foam costs more, but it seals air and insulates in one step. For most Bismarck attics, closing the gaps and topping up with loose fill gets you the same warm rooms for less money, and that's what I usually recommend, even though spray foam is in our name.
The exception is ductwork or a furnace in the attic. Then foam sprayed on the underside of the roof brings that equipment inside the warm part of the house, and closed-cell foam, a dense foam that also blocks moisture, can be worth the extra cost. I'll tell you at the estimate which kind of attic you have.
Examples of insulation work
Look through these examples of insulation work, from blown-in attic floors to spray foam, to get a feel for what each method looks like.
Find out what your attic actually needs
Tell us what you're noticing, and add a few attic photos and your home's square footage if you have them. We respond within 1 business day to set up a free in-person estimate, with no pressure to book.
Why Bismarck homeowners call Pinnacle Bismarck Spray Foam Insulation about their attic
The owner does your estimate
I come out myself, go through the attic with you and show you photos of what I found. I'm also on the job beside our installers, so the person who explained the plan is there to see it done.
We'll say if you have enough
I'd rather tell you your insulation is fine than sell you more, and we've worked that way since we went into business in 2023. When you understand why we'd add something, nobody can talk you into work you don't need.
Licensed and fully insured
North Dakota requires a contractor license once a job's price goes over $4,000, so it's worth asking anyone who bids on your attic. We're licensed and fully insured.
Backed by our satisfaction guarantee
The attic work we do is backed by our satisfaction guarantee. When you're ready, call (701) 299-5007 or send the form and I'll set a time to come look.
Attic insulation questions we hear
How do I know if my attic needs more insulation?
If the insulation is level with or below the floor joists, so you can easily see them, you should add more. If it sits well above the joists, you probably have enough, and adding more may not pay for itself. When I come out, I check the depth and tell you which side you're on.
Should air sealing be done before adding attic insulation?
Yes, the EPA recommends finishing the attic air sealing first and the insulation after it. Once fresh insulation is piled on, the gaps around lights, pipes and the hatch are buried and hard to reach, and the insulation ends up fighting a draft. If you're comparing quotes, it's fair to ask that sealing be scheduled before any new insulation goes in.
What should I do if my attic has vermiculite insulation?
Leave it alone and plan for it before any other attic work, because the EPA says to assume vermiculite may contain asbestos and that disturbing it could release fibers you'd breathe in. If you decide to remove it, the EPA says a trained, accredited asbestos abatement contractor should do the work, and it's worth asking whether that contractor is separate from whoever assessed it. If I see it, I'll point it out and won't disturb it.
How much does attic insulation cost in Bismarck?
Upgrading a typical 1,500-square-foot attic with blown cellulose in North Dakota usually runs about $2,000 to $6,500 for the job. Where yours lands depends on how much is already there, how easy the attic is to get into and whether anything needs fixing first. I'll look at it with you and send a written estimate, so you have your own number.
Do we have to leave the house while the attic is insulated?
Usually not, because with blown-in loose fill you can stay home while we work, though we'll be going in and out and running a hose up to the attic. If part of your job uses spray foam, there's a re-entry time, a wait before people and pets come back inside, and I'll go over it with you before we start.
What is the best way to prevent ice dams on my roof?
Enough attic insulation and good ventilation, so the roof stays cold, is the best way to cut the chance of ice dams. Eave vents need to stay clear of insulation, because a buried vent stops the attic from breathing and wind blowing through the edges lowers what the insulation can do. That's why I check the vents before we add anything.
Not sure what's in your attic?
I'll come out, look it over with you and send a written estimate that says what we'd do and why.
Other work tied to your attic
Attic insulation permits and winters in Bismarck
Bismarck's Building Inspections Department handles permits for work in the city and its extra-territorial area, and the city prohibits starting construction without a permit. Whether an attic insulation job needs one is that office's call, so before we start, we check with them, and when a permit is needed we handle the application and wait for it to be issued. If you have your own permit questions, that's the office to call.
Winter here gives you a free check. Snow on your roof should look like snow on an unheated, detached garage, with only a little melt around the edges, and bare patches mean warm air from the living space is heating the roof and setting up an ice dam. We see those bare patches on homes in Bismarck and Mandan, and they usually point us straight to the gaps and thin spots to fix first.