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Spray Foam Insulation in Hillsborough, NC (27278) · Local Professionals

Durham Spray Foam Insulation · Fast response in Hillsborough and the Durham area · Free estimate 24h

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Hillsborough's historic homes and new subdivisions sit on the same red clay and humid air as Durham, and they share the same insulation headaches: attics that bake past 140 degrees through long summers, vented crawl spaces that sweat moisture into the frame, and closed walls with nothing but dead air between the brick and the drywall.

Since 2012, we have been sealing and insulating homes across Orange County and the Durham area, including the older Craftsman and foursquare neighborhoods near downtown Hillsborough (27278) and the newer subdivisions spreading toward Chapel Hill. When a cooling bill becomes unaffordable, when a bedroom never reaches temperature, or when you find damp insulation in the attic or crawl space, we show up with a clear estimate that names the R-value, the thickness, and the cost. No sales pitch, no fear, just honest work.

Spray Foam Insulation in Hillsborough (27278)

Hillsborough's building stock runs from 1920s brick cottages and Craftsman bungalows on brick piers above damp crawl spaces, to 1960s brick ranches with flattened attic fill, to modern two-stories with vaulted ceilings and finished rooms over the garage that never cool down. Every one of them sits in a humid subtropical climate where moisture drives the insulation decision. The red clay below holds water; the oak and pine canopy above keeps the air thick; and a vented attic in summer becomes a convection oven that sucks humidity up from the crawl space and bakes the fiberglass and ductwork inside it.

Spray foam solves this. Closed-cell foam in a crawl space stops the moisture rise and the condensation that rots the rim joist and the band board. Open-cell foam in an attic stops the air leaks that let the humid outside air in, and it lets the roof deck breathe. Injection foam into the closed walls of older homes puts insulation where there was none. Our team has been doing this work in Hillsborough and across the greater Durham area since 2012, and we know the building codes, the moisture patterns, and the access challenges that come with every job.

Our services in Hillsborough

How a Job Works in Hillsborough

We start with a free on-site visit. We look at the attic, the crawl space, the walls you want to insulate, and any insulation that has to come out first. We measure the area, we talk through whether you need open cell or closed cell, and we give you a written estimate with the R-value and thickness clearly specified. No surprises, no pressure.

When you give us the go-ahead, we set up mechanical ventilation to manage the odor during the spray and cure. We protect your floors and belongings, we spray the foam to the thickness and coverage your estimate calls for, and we let it cure. The smell fades as the foam sets, and we give you a clear re-entry window, typically 24 to 48 hours. If the attic was occupied or if you are living in the house, we tell you exactly when the space is ready to use again.

We clean up after ourselves, we walk the job with you to confirm it is complete, and we hand you documentation of what was sprayed, where, and to what thickness. Your property looks the way it did before we arrived, except now your attic is sealed, your crawl space is dry, or your walls hold insulation that was never there.

Attic spray foam in Hillsborough typically runs from $1.50 per square foot for open-cell foam on a straightforward attic, up to $2.50 or more per square foot if the attic is tight, if old insulation has to come out first, or if you choose closed-cell foam for its moisture resistance. A crawl space project usually starts at $2,500 and climbs with the size of the space and whether there is standing water or contaminated insulation to remove before we spray. Wall injection foam runs from $2 per square foot, and rim joist and band joist sealing typically starts at $650. The real cost drivers are the area you want covered, the R-value and thickness your estimate specifies, whether you need open or closed cell, and what old insulation has to come out. Call us at (984) 254-5400 for a free estimate. We will measure your space, walk through your options, and give you a firm price in writing.

✅ Written Estimates with R-Value & Thickness Specs, fully insured for work in Hillsborough and nearby areas.

I have a finished room over the garage in my Hillsborough home and it never cools down in summer. Will spray foam fix it?
Almost always, yes. The FROG (finished room over the garage) is a classic problem because the attic above it sits in direct sun and bakes past 140 degrees, and the ductwork that serves the room runs through that same hot attic. When the ducts are not sealed and the attic insulation is thin or missing, the cold air leaks out before it reaches the room. Closed-cell spray foam on the roof deck above the FROG and around the ductwork stops the heat loss and seals the air leaks. We have done this work in dozens of homes across Hillsborough and Chapel Hill, and the difference is dramatic. Call us at (984) 254-5400 and we will assess your setup.
I found damp insulation and condensation in my attic. Can I just spray foam over it?
No. Spray foam will trap the moisture and make the problem worse. We remove the wet insulation first, dry the attic, and then spray the foam. If there is a roof leak or if water is flowing in from outside, that has to be fixed before we touch anything. We fix the moisture first or we walk away. That is not a caveat, it is a selling point. Call (984) 254-5400 and we will tell you what has to happen before the foam goes in.
What does spray foam cost in Hillsborough? I have an old crawl space under my Craftsman bungalow.
A crawl space project in Hillsborough typically starts at $2,500 for a small space with no contamination and straightforward access. Larger crawl spaces, or spaces where old insulation or standing water has to be dealt with first, run higher. The final price depends on the square footage, the R-value and thickness you want, and what condition the space is in. Call us at (984) 254-5400 with the dimensions of your crawl space and we will give you a firm estimate.
Does the building code in Hillsborough require a permit for spray foam insulation, and who inspects it?
Building code and permit requirements vary by jurisdiction, and Hillsborough enforces the energy and building code in force at your address. The building official in Hillsborough determines whether a permit is required and what the R-value and thickness rules are for your application. Spray foam also has to meet thermal barrier and ignition barrier rules, and those are set by code, not by us. Check the City of Hillsborough website or call your local building department to confirm what applies to your project, and we will help you navigate the permitting process at your address.
I live in my home during the work. Is the smell dangerous, and how long before I can use the attic again?
Spray foam has an odor as it cures, especially in the first 24 to 48 hours. We run mechanical ventilation during the spray and cure to manage the smell and move the fumes out of the attic and away from living spaces. We will give you a clear re-entry window before we start, typically 24 to 48 hours depending on temperature and ventilation. You can stay in your home during the cure. The smell fades as the foam sets, and once we give you the all-clear, the space is ready to use. If you have questions about your specific situation, call us at (984) 254-5400.
Are you fully insured for spray foam insulation work at my Hillsborough property?
Yes. We carry full general liability and workers' compensation insurance. You can ask to see our certificate of insurance before we start work. We are fully insured and we protect your property and our crew while we work.
When is the best time to schedule spray foam insulation in Hillsborough?
Summer is when most homeowners call us, because cooling bills become unaffordable and the attic temperature problem becomes obvious. But fall and spring are excellent times to work, the weather is mild, and we have more open slots. Winter is possible too, though cold temperatures slow the cure. If you are planning a major renovation or if you are building new, any season works. The real question is whether you have a moisture problem right now. If you do, do not wait. Call (984) 254-5400 and we will fit you in.
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Our services

Our Spray Foam Insulation Services in Durham

All your work handled by qualified professionals in Durham

Attic Spray Foam Insulation

Sealed attics that pull Triangle air handlers in out of 150-degree heat

Included in your service

  • Open-cell foam on the roof deck; never just piled on the attic floor
  • Your attic air handler and ductwork brought inside the envelope
  • Target R-value and thickness per pass written into the estimate
  • Gable and ridge details closed properly for a humid Piedmont attic
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Closed Cell Spray Foam Insulation

Two-pound foam for where Carolina humidity and red clay push hardest

Included in your service

  • R-6.5 per inch with its own built-in vapor retarder
  • The right call for Triangle crawl spaces and Chatham County shops
  • Racked in controlled passes; never one thick lift
  • Depth gauged at the wall because humid air punishes a thin pass
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Open Cell Spray Foam Insulation

The friendlier board foot for Durham attics and interior walls

Included in your service

  • Half-pound foam that air-seals at a lower cost per board foot
  • Sound dampening for bedrooms; media rooms and home offices
  • Where crawl space or basement moisture calls for closed cell; we say so
  • Shaved flush to the framing and the offcuts bagged out
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Wall & Injection Foam Insulation

Closed walls filled without opening up a Durham mill house

Included in your service

  • Small ports drilled under a siding course or along a mortar joint; then plugged and patched
  • Built for 1920s-60s frame and brick-veneer stock with empty wall cavities
  • Priced room by room so you can start with the hot one
  • Every cavity probed for fill rather than assumed full
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Crawl Space Spray Foam Insulation

Triangle crawl spaces sealed against humid air and damp red clay

Included in your service

  • Closed cell on the perimeter walls and the rim joists
  • Common under mill houses and bungalows on brick piers and 1950s-60s ranches
  • Standing water and drainage fixed first or we decline the job
  • Termite inspection strips left where your pest bond requires them
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Rim Joist & Band Joist Spray Foam

The small job that finally fixes the room over the garage

Included in your service

  • Every joist bay sealed along the top of the foundation wall
  • Daylight basements on sloped lots and cantilevered bonus-room floors
  • Half a day on site and felt the same evening
  • Gun-applied into framing gaps a batt has never reached
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Garage Spray Foam Insulation

Fixing the Triangle FROG that bakes every afternoon

Included in your service

  • Ceiling bays under the finished room over the garage filled and shaved flush
  • Walls shared with the house sealed against radiant afternoon heat
  • Workshop conversions specified around the tools you actually run
  • The door header and slab edge addressed; not stepped over
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Metal Building & Barndominium Spray Foam

The insulation that stops a Carolina shop from sweating

Included in your service

  • Closed cell straight to the underside of the roof panels
  • Chatham; Orange; Person and Granville County shops and barndominiums
  • Condensation control settled before R-value is even discussed
  • Purlins and fastener lines sealed; not sprayed around
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Commercial & New Construction Spray Foam

Durham labs; warehouses and production builds kept on their own schedule

Included in your service

  • Labs; shells and distribution centers from RTP and Morrisville to Mebane
  • Code-compliant assemblies documented for your city or county inspector
  • Phased around occupied floors and production schedules
  • Ignition and thermal barrier requirements settled up front
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Insulation Removal

In a Durham attic the old comes out before anything new goes in

Included in your service

  • Vacuumed straight to the truck and bagged; never buried
  • Squirrel and raccoon damage cleaned out along with the old fill
  • Vermiculite flagged for testing and left undisturbed
  • The usual first step on 1950s-60s Durham; Chapel Hill and Hillsborough ranches
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Insulation Replacement & Re-Insulation

A full reset for Triangle attics twenty years past their job

Included in your service

  • Removal; air sealing and new foam handled as one scope
  • For material left flattened; rodent-fouled or wet after a tree came down
  • Built to current code R-values; not to what was there in 1985
  • One crew and one price with no handoff between trades
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Air Sealing

The cheapest comfort fix in a Durham house and it comes first

Included in your service

  • Top plates; wiring chases; can lights and the attic hatch
  • Sealed before insulating so the R-value can actually perform
  • Thermal camera images before and after on a hot Carolina afternoon
  • Priced as its own job; never bundled in to pad a quote
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