A public service of The Hunterdon Scoop · Hunterdon County, New Jersey
The unglamorous upgrade with the fastest payback in a county of drafty old farmhouses. We checked what's checkable on every insulation contractor we could find serving the county. Every fact below names its source and the date we checked. Nobody paid to be on this page, and nobody can.
6 checked · 2 we'd call first
Whitehouse Station, Hunterdon County
40+ years in Whitehouse Station, does all three insulation types in-house (not a one-trick spray foam shop) — call first if you want a generalist who's been doing this since before most competitors existed, but verify the HIC license is current before signing. Credential verified against the state registry, date shown.
Kearny, Hudson County
Not local, but if the job is really a whole-house energy audit chasing NJ Clean Energy rebates rather than a simple attic top-off, this is the outfit with the actual BPI accreditation and the award history to back it up — expect travel/scheduling lead time. Credential verified against the state registry, date shown.
We pull credentials from the official registries ourselves and print the date next to every status — the relevant license for this category is the NJ Home Improvement Contractor (HIC) registration, administered by the NJ Division of Consumer Affairs (part of the Dept. of Law & Public Safety) under the Contractors' Registration Act. There is no separate "insulation contractor" license — insulation and spray foam work on residential property falls under the general HIC registration, format 13VHxxxxxxxx. Verify any contractor's number for free at the state's official lookup: https://newjersey.mylicense.com/verification/ (background info also at https://www.njconsumeraffairs.gov/hic). Two companies in this search (Builders Insulation & Drywall, Eastern Contractor Services) showed licenses as cancelled or expired on third-party license-board pulls despite active marketing — always re-verify directly on the state site before hiring, since license status changes and directory sites lag.. Picks are editorial judgment on the checkable record: years in the trade, complaint patterns, review consistency, real presence in the county. No company paid to be listed, none can pay to become a pick, and when a pick has a weak spot we print it. Here are the full rules.
| Company & services | Based in | NJ HIC # | Registry status | BBB | Reviews (as reported) |
|---|---|---|---|---|---|
| North Pole Insulation Corp Registered as North Pole Insulation Corporation Blown-in cellulose insulation · Blown-in fiberglass insulation · Batt insulation · Open-cell spray foam · Closed-cell spray foam | Whitehouse Station In county | 13VH03704600 | ✓ Active · 2026-07-14 | Not checked | 3.9 (Angi) |
| Enviro FoamTek, LLC Closed-cell spray foam insulation · Residential spray foam insulation · Commercial spray foam insulation · Insulation removal · DC315 thermal barrier paint | Milford In county | — | … Pending check | Not checked | 4.8 · 41 reviews (Birdeye); 4.8 (Angi) |
| Spray It, LLC Spray foam insulation · Injection foam insulation | Clinton In county | — | … Pending check | Not checked | |
| Builders Insulation & Drywall, LLC Spray foam insulation · Fiberglass insulation · Sheetrock/drywall installation | Flemington In county | 13VH05747100 | ✕ Expired · 2026-07-14 | Not checked | |
| Eastern Contractor Services, LLC Spray foam insulation · Blown-in insulation · Fiberglass insulation · Radiant barrier · Waterproofing · Firestopping · Seamless gutters | Flanders | 13VH03683300 | ✕ Expired · 2026-07-14 | Not checked | |
| Ciel Power LLC Home energy audits · Insulation (attic, wall, crawl space) · Crawl space encapsulation · Air sealing · Heating system upgrades | Kearny | 13VH06170900 | ✓ Active · 2026-07-14 | A+, accredited |
Registry status comes straight from the state's verification system on the date shown, and you can rerun any number there yourself in about two minutes. Review scores are what the named platforms report and we have not audited them. BBB grades as of July 2026. "Based in" is the registered address city, which sometimes differs from where a company says it operates. An active registration is the floor, not an endorsement; the picks we would actually call are above.
No credible, citable NJ-specific per-square-foot or per-job pricing source was found for insulation or spray foam work in this search (the numbers that turn up on aggregator sites like HomeAdvisor/Angi are national averages, not sourced NJ data, so they're omitted per the no-guessing rule). Ask each contractor for a written per-job quote broken out by insulation type and area (attic, walls, crawl space) rather than relying on a rule-of-thumb price.
Do it in your browser: check any license · check your quote · the storm-chaser test
Just the general one — NJ doesn't have a separate 'insulation license.' Anyone doing insulation work as a paid contractor on a residential job needs to be registered as a Home Improvement Contractor (HIC) with the NJ Division of Consumer Affairs. You can look up any contractor's HIC number for free at newjersey.mylicense.com/verification before you sign anything.
It can pay. Through the Home Performance with ENERGY STAR track, homeowners who go through a participating contractor can get rebates toward air sealing and insulation (commonly cited around $1,000, though the exact number depends on the program year and your utility). The catch is you generally need to use a program-participating contractor and get an energy audit first — you can't do the work with any contractor and apply for the rebate after the fact.
No — it depends on the assembly. Spray foam seals air leaks along with insulating, which matters in old, drafty construction, but it's pricier and harder to reverse if it's misapplied. Blown-in cellulose or fiberglass is cheaper and works fine in an open attic with no major air-leak problem. A contractor who quotes spray foam everywhere without first talking about air sealing and where the leaks actually are is worth a second opinion.
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