Spray foam insulation
Spray foam fits where loose fill won't stay put, like rim joists, the room over the garage or a sloped ceiling. It seals air and insulates in one pass, at a higher cost.
Sealcraft Durham Insulation Company is an insulation contractor working in Carrboro, NC. We air seal and insulate attics, walls and crawl spaces, and we remove old insulation that's soaked or dirty, so drafty rooms and hot bedrooms settle down.

Sealcraft Durham Insulation Company insulates and air seals homes in Carrboro, from the attic floor to the crawl space under the house. Most calls start with a hot upstairs bedroom, cold floors or a power bill that keeps climbing, and the fix is usually in what's above or below the rooms, not in the rooms themselves.
Carrboro sits right up against Chapel Hill, and we're an insulation contractor based a short drive away in Durham, so it's part of our regular route. The houses we see around here run from older homes with a few tired inches in the attic to newer ones where the room over the garage never feels right. Each one gets the same first step.
That first step is looking before we quote. I go up into the attic and down into the crawl space, measure how many inches are already there, and ask how old the house is, because that tells me what's likely behind the walls. Then I explain what I found in plain words before anyone talks about material.
Spray foam fits where loose fill won't stay put, like rim joists, the room over the garage or a sloped ceiling. It seals air and insulates in one pass, at a higher cost.
If the upstairs runs hot and the attic floor shows only a few inches, sealing the gaps and then topping it up is usually the most direct fix.
Blown-in insulation is loose fill blown through a hose. It covers an open attic floor evenly, right out to the edges where coverage tends to run thin.
When several rooms feel off and you're not sure where to start, we look at the attic, walls and crawl space together and tell you what to do first.
Insulation that got soaked, smells or is full of droppings needs to come out before anything new goes in, or the problem just stays under the new layer.
Cold floors often trace back to an open crawl space under the house. Insulating under the floor or along the crawl space walls keeps that cold off your feet.
Older walls with little or nothing inside them leave rooms drafty no matter what's in the attic. We fill the empty cavities through small openings instead of tearing walls open.
Air sealing means closing gaps before insulating, around pipes, wires, can lights and the attic hatch. It's the step that keeps new insulation from fighting a draft.
Bare basement walls pull heat out of the floors above them. Insulating those walls helps the rooms over the basement feel closer to the rest of the house.
Closed-cell foam is a dense foam that also blocks moisture, so it suits spots near the ground or around damp framing where a softer material would hold water.
Open-cell foam is softer and lighter. It expands into odd-shaped spaces like rooflines and the framing around ductwork, sealing air as it fills.
Property managers with offices, shops or rental buildings around Carrboro can call us too. I came up on commercial crews, so larger buildings are familiar work for us.
A crawl space vapor barrier is a sheet laid over the dirt, so ground moisture stays down there instead of soaking into the floor framing and insulation above it.
Some walls, floors and basements need a layer that slows moisture moving through them. We put it on the side the material calls for, because the wrong side traps water.
Before any fill goes up, we seal the attic floor, the tops of the walls, the hatch and the holes around lights and vents, so your conditioned air stays in the rooms.
Retrofit work adds insulation to a finished house without gutting it, working through the attic, the crawl space or small wall openings while you go on living there.
Send the form and we'll reply within one business day to set a time. I come out to your Carrboro house myself, look at the attic or crawl space, and give you a free written estimate, walking you through each line. There's no obligation to go ahead.
(919) 246-8605Building permits in Carrboro come from the Town of Carrboro's Inspections Division, which enforces the state building code across the city. Before we start, we check with that office about your job. Where a permit is needed, it has to be issued before work begins and an inspection follows, which adds time on both ends of the schedule. We handle that paperwork and meet the inspector.
The other thing that moves the schedule is what we find up there. Old insulation that has to come out, or a lot of gaps to seal, adds a step before any new fill goes in. Price follows those same things, plus the size of the space and how hard it is to reach. We work the same way here as in Hillsborough and the other cities nearby.
I learned this trade on commercial crews, spraying foam and fitting board in warehouses, schools and office buildings, and I started this business in Durham in 2013 to bring that same care to houses. Most insulation trouble I've seen came from a rushed step, so we don't rush the sealing or the prep, even though it's the part nobody sees once we're done.
I write your estimate myself, and our trained installers do the work with a crew lead on site. We're licensed and insured. Satisfaction guaranteed. If your house needs less than you expected, I'll tell you, because being straight with you matters more to me than the size of the job. Call (919) 246-8605 or send us the form to set up a visit.
These are the problems we look for on every job here, because they decide whether new insulation actually works once it's in.
If the material up there was ever soaked by a roof leak or is full of droppings, laying fresh insulation on top just buries the problem. It keeps smelling, keeps holding moisture and doesn't slow heat the way it should. We'd rather pull it out and clean the space first, even though that adds a step and some cost, because that's how the new layer does its job.
Can lights, plumbing pipes, wires and the attic hatch all leave holes in your ceiling. Air moves through them easily, and insulation laid over an open gap is fighting a draft it can't stop. So we seal those first with foam or caulk sized to the gap, weatherstrip the hatch, and only then insulate. It's slow, plain work, and it's usually where the comfort comes from.
The vents along the edges of your roof let the attic breathe. When blown-in fill gets piled over them, moist air stays trapped and can show up later in the framing. We set baffles, channels that hold insulation back from the vents, before we blow anything in. That also lets us carry full depth out to the edges, where many attics end up thinnest instead of deepest.
Foam costs more, and it seals air while it insulates. For most attics, sealing the gaps and topping up loose fill gets you there for less, and that's what I'll usually recommend. The exception is when your heating and cooling ducts run through the attic. Then foaming the roofline can bring them inside the insulated space, and the extra cost can make sense. I'll show you which case you're in.
Possibly, and the city's list doesn't settle it for insulation alone, so we check with the Inspections Division before we start your job. Carrboro quotes the state building code as requiring a permit before work on any building, structure or service system, and its list names new construction, structural work and electrical work replacing HVAC or ductwork. If a permit's needed, we handle it.
You call Carrboro's inspections office at 919-918-7336, Monday through Friday from 8AM to 4:30PM, at least 24 hours before you need the inspection. Inspections are booked for a morning or an afternoon, not a set time. On jobs that need a permit, we set this up and meet the inspector ourselves.
Applications go through PIPER, the city's online permitting portal, and that's where a homeowner planning permitted work starts one. When we're doing the job and a permit is needed, we handle that paperwork for you, so you're not learning a new system just to get your attic done.
Depending on the permit, the city may ask for site plans of the changes, load calculations for mechanical renovations or change-outs, and the contractor's name, address and state license number. You can see what applies on Carrboro's building permits page. We fill in our part and pull the rest together with you.
There's no flat number, because it comes down to choices you'll make with us. Foam costs more than blown-in fill, removing old material adds labor, and sealing a lot of gaps takes time, though skipping it wastes the new insulation. Your written estimate lists each piece, and I walk you through which choices raise or lower the total.
That turns on the size of the attic, how much air sealing it needs and whether old insulation comes out first, because removal and sealing take longer than blowing in fresh fill. A straightforward top-up is the quicker kind of job. Ask me at the estimate visit and I'll tell you what to plan around for your house.
Usually not for blown-in fill and air sealing, but spray foam has a re-entry time, the wait before people and pets can come back inside, and we give you that before the day. Either way, clear a path to the attic hatch, move what's stored around it, and keep kids and pets in another room while the crew works.
We answer (919) 246-8605 until 10 PM on weekdays and from 6 AM on weekends, so you can call after work or on a Saturday morning.