Homeowners
Cold rooms, drafts, ice dams and a heating bill that keeps climbing. We find where the house is leaking and seal it.
For homeownersOn job sites six days a week across
Spray foam done right the first time
Absolute Spray Foam Insulation is a family-owned insulation contractor working across New Jersey and Pennsylvania. Since 2014 we’ve insulated attics, crawl spaces, basements and commercial buildings — from 1920s row homes in Trenton to new-construction warehouses in Bucks County.
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Air leakage, not R-value, is the real problem
The Northeast sits in IECC Climate Zones 4A and 5A, where most of the heat loss in an older home escapes through gaps rather than through the insulation. Spray foam is the only material that insulates and air-seals in one application.
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We’ll tell you when foam is the wrong call
Every job starts with an on-site assessment. If air sealing plus blown-in cellulose is the better answer for your budget, that’s what we’ll recommend. It has cost us work and earned us referrals.
Years in business
+
Projects completed
5.0
Google rating · 28 reviews
13VH08165800
NJ licensed & insured
Who we work with
Three different jobs, three different conversations.
Builders & GCs
Firm dates that hold, clean blower door numbers, COI before we mobilize, and documentation your inspector actually wants.
For buildersCommercial
Warehouses, metal buildings, cold storage and multifamily. Off-hours crews, phased work, full submittal documentation.
For commercialWhat does spray foam insulation cost?
Most contractors hide this behind a form. Here are the real ranges in our service area.
By foam type
- Open-cell 0.5 lb
- $0.45–$1.50 per board ft
- Closed-cell 2.0 lb
- $1.20–$2.75 per board ft
Interior walls, vented attics, soundproofing
Crawl spaces, rim joists, roof decks, basements
By project
| Project | Typical size | Installed cost |
|---|---|---|
| Attic roof deck, closed-cell R-49 | 1,200 sq ft | $4,500–$9,000 |
| Attic floor, open-cell | 1,200 sq ft | $2,200–$4,500 |
| Crawl space, walls + rim joist | 1,000 sq ft | $2,800–$6,000 |
| Rim joist only | 150 linear ft | $900–$1,800 |
| Basement walls, closed-cell 2″ | 900 sq ft | $2,700–$5,400 |
| New-construction walls, open-cell | 2,000 sq ft | $3,500–$7,000 |
What moves your number: removal of existing insulation, attic accessibility, the number of penetrations to seal, whether ventilation has to be reconfigured for an unvented assembly, and required ignition or thermal barriers under IRC R316.
New Jersey and Pennsylvania both run energy efficiency incentive programs, and federal tax credits have covered part of qualifying insulation and air-sealing work. We’ll flag anything you look eligible for during the estimate — confirm current eligibility with your tax advisor.
Get an instant ballparkWhere we apply spray foam
- AtticHighest-ROI upgrade in most homes here
- Crawl spaceStops moisture, mold and cold floors
- WallsNew construction and gut renovations
- Basement & foundationClosed-cell, below-grade rated
- Air sealingThe leaks that make a house feel cold
- SoundproofingTheaters, offices, shared walls
- Air ductsDuctwork in unconditioned attics
- Energy auditBlower door and thermal imaging
What working with us looks like
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Free on-site assessment
We measure your existing assembly and check ventilation and moisture conditions. No sales pitch, no pressure.
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Written scope and fixed price
Foam type, thickness, R-value, square footage and prep work, itemized. The number you sign is the number you pay.
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Prep and protection
Everything not being sprayed gets masked. Ventilation set up per SPFA and manufacturer requirements.
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Installation
Most residential jobs finish in one day. Re-entry times are given to you in writing before we start.
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Walkthrough and documentation
Coverage verified, photos taken, warranty and code documentation handed over for your inspection or appraisal file.
Before you spend anything
Free assessment, plus a rebate check
We come out, find where your house is actually losing heat, and tell you what it would cost to fix. While we’re there we check which New Jersey, Pennsylvania or federal energy programs you may qualify for. You get a written number either way.
Book your free assessmentOr call 855-937-0666 — most estimates scheduled within the week.
What our customers say
5.0 out of 5 across 28 Google reviews.
Spray foam insulation FAQ
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Is spray foam insulation worth it in New Jersey or Pennsylvania?
In this climate, usually yes. Homes here lose most of their conditioned air through leakage rather than through the insulation itself, and spray foam addresses both in one application. Older homes with knee walls, balloon framing or open rim joists see the biggest change.
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How much does spray foam insulation cost?
Open-cell runs roughly $0.45 to $1.50 per board foot installed; closed-cell $1.20 to $2.75. A typical attic lands between $4,500 and $9,000. Full breakdown is in the pricing section above, and the calculator gives you an instant ballpark.
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Is spray foam insulation safe once it’s cured?
Yes. Properly installed and fully cured spray foam is inert. The safety requirements apply during and immediately after application, which is why ventilation and re-entry times matter. You get a written re-entry time before we start, typically 24 hours for occupants on residential jobs. This is also the main reason DIY kits are risky: foam mixed off-ratio may never cure properly.
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Do I need open-cell or closed-cell foam?
Closed-cell for anything below grade or exposed to moisture — crawl spaces, rim joists, basement walls, coastal properties. Open-cell for above-grade interior applications and where sound control matters. Roof decks depend on your climate zone and assembly, and we calculate that during the assessment.
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Will spray foam cause moisture problems in my roof?
Not when it’s specified correctly. Problems happen when an unvented roof assembly is sprayed without meeting the condensation control ratios in IRC R806.5, or when a vented attic is left half-sealed. Both are specification errors, not material failures — and that’s the part of the job worth paying a professional for.
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Does spray foam insulation affect my home’s resale value?
Documented insulation upgrades generally help — buyers and appraisers increasingly ask for energy documentation, and we provide R-value, coverage and product data for your file. What complicates a sale is undocumented work a home inspector can’t verify.
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How long does installation take?
Most residential attics and crawl spaces are a single day. Whole-house new construction runs two to three. Removing existing insulation adds time and cost, and we tell you that at the estimate rather than on the day.
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Do you handle permits and inspections?
Yes. We work within New Jersey and Pennsylvania building code requirements, including ignition and thermal barrier requirements under IRC R316, and provide the documentation your inspector will need.
Not sure what your house actually needs? Tell us which room bothers you and we’ll tell you what’s causing it.
Book a free assessmentGet your free estimate
Tell us which part of the building is the problem. We’ll come out, measure, and give you a written fixed price. No obligation to proceed.
- 855-937-0666 Fastest way to reach us
- info@insulation4you.com Send plans or photos
- 5.0 · 28 reviews Read them on Google
What happens next
- We call you back within one business day to ask a few questions.
- A free on-site assessment — usually 30 to 45 minutes.
- A written fixed price before any work starts. No obligation.