
A Tri-State Insulation Crew That Sequences The Work Correctly
Tri State Spray Foam Insulation Corp is a registered New Jersey company based in Hillside, installing closed cell, open cell and fiberglass insulation plus DC 315 fireproof coating across three states.
- Free On-Site Estimates
- NJ · NY · CT
- Licensed & Insured
- Residential & Commercial
Insulation is the trade. Air sealing is the job.
We are a spray foam insulation contractor based at 1537 Center St in Hillside, NJ, working across New Jersey, New York and Connecticut. We install closed cell and open cell spray foam, fiberglass batt insulation, and DC 315 intumescent fireproof coating — for homeowners, landlords, general contractors and commercial property owners.
The thing that shapes how we work is simple: most of the disappointing insulation we get called to fix was not a bad product. It was the right product installed in the wrong order, on top of an envelope that was still leaking air. Batts added over an unsealed attic floor. Foam sprayed over damp, contaminated insulation that should have come out first. A fire barrier applied too thin to pass.
So we sequence it properly. We look at the space before we quote it. We seal the penetrations, remove what has failed, specify the product the assembly actually calls for, and document the fire barrier so it clears inspection. If the honest answer for your attic is fiberglass rather than foam, that is what we will quote — we install both, so we have no reason to sell you the more expensive one.
We are licensed, insured, and registered in New Jersey. Every project starts with a free on-site estimate and a written scope, and every project ends with a walkthrough before we leave.
Six standards on every project
Big job or small, residential or commercial — these do not change.
Seal First, Insulate Second
Air leakage costs more than conduction. We fix the leak path before adding R-value.
Product Fits The Assembly
We install all three insulation types, so we recommend what the space needs — not what we stock.
Code Barriers Documented
DC 315 applied at tested thickness, documented, and cleared on the first inspection.
Property Protected
Masking and containment planned in advance, because overspray cannot be undone.
Plain Answers
If foam isn't worth it in your attic, we'll say so and quote the cheaper option.
Scheduling That Works
Residential staged room by room; commercial phased around your operating hours.
A better service experience, by design
Generic promises are easy. These are the specifics we can actually be held to.
Four steps, start to finish
A predictable process, so you always know what happens next.
On-Site Look
We inspect the assembly, moisture, ventilation and where your ducts actually run.
Written Estimate
Clear scope, product, thickness and timeline — free, with no pressure to commit.
Prep & Install
Containment and masking first, then foam applied in controlled lifts to spec.
Verify & Walk Through
Coverage checked, barrier documented, site cleaned, and we review it with you.
Working across 15 service areas
From our Hillside shop we cover northern New Jersey and New York City on a 30-mile core radius, plus scheduled projects throughout Connecticut.
Ready to work with a crew that gets the order right?
Free on-site estimate, honest specification, written scope. Call us or send a few details and we'll take it from there.