Contractors/New Jersey/Insulation Contractors
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New Jersey Insulation Contractors

Looking for insulation contractors in New Jersey? Below are 10 top-rated insulation contractors serving New Jersey in 2026 — every one rated 4.0+ stars with 10 or more verified Google reviews. Compare ratings and review counts, then contact them directly by phone or website. No middleman, no lead fees.

Listings are sourced from public Google Business Profiles and sorted by rating. Are you a New Jersey insulation contractor? Add your business free below.

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1

Master Attic LLC

2486 Ridgeway Blvd, Manchester Township, NJ 08759, USA

5.0star

745 reviews

Reviews via Google

phone(800) 285-4009
2

Koala Insulation of Central Jersey

179 South St, Freehold, NJ 07728, USA

5.0star

191 reviews

Reviews via Google

phone(732) 387-4842
3

Koala Insulation of the Delaware Valley

116 Burrs Rd Suite 116A, Westampton Township, NJ 08060, USA

5.0star

166 reviews

Reviews via Google

phone(856) 389-0075
4

A Plus Spray Foam & Coatings, LLC

2547 Fire Rd, Egg Harbor Township, NJ 08234, USA

5.0star

114 reviews

Reviews via Google

phone(609) 568-5182
5

Koala Insulation of Mercer & Middlesex Counties

314 Cortland St, Trenton, NJ 08638, USA

5.0star

105 reviews

Reviews via Google

phone(609) 207-2022
6

THI Home Insulation and Construction

319 E 6th St, Plainfield, NJ 07060, USA

5.0star

68 reviews

Reviews via Google

phone(908) 944-7004
7

Right Insulation

1405 Chews Landing Rd # 1, Laurel Springs, NJ 08021, USA

5.0star

55 reviews

Reviews via Google

phone(856) 474-2400
8

Atticrawl LLC

34 Green St B, Woodbridge, NJ 07095, USA

4.9star

1,013 reviews

Reviews via Google

phone(800) 682-1602
9

Home Experts Inc

17-16 River Rd, Fair Lawn, NJ 07410, USA

4.9star

472 reviews

Reviews via Google

phone(888) 832-4211
10

Ciel Power LLC

78 John Miller Way Suite 1010, Kearny, NJ 07032, USA

4.9star

217 reviews

Reviews via Google

phone(201) 632-3463

Data sourced from Google Places. Updated April 12, 2026.

Hiring an Insulation Contractor in New Jersey

Buildermuse currently lists 10 insulation contractors in New Jersey, averaging 5.0 stars across 3,146 verified Google reviews. That is an unusually strong field — when nearly every firm clears 4.8 stars, response time and availability become the real differentiators, so call two or three rather than only the top result. Most of the crews above operate out of Egg Harbor Township, Fair Lawn, and Freehold.

New Jersey requires registration (not licensing) for home improvement contractors. No exam is required. Commercial construction does not require state-level licensing. High insurance minimums compared to most states. Confirm credentials with the New Jersey Division of Consumer Affairs at (973) 504-6370 before work begins. Licenses renew on a two-year cycle (registration date). Expect a $200 state application fee. At a minimum, ask for proof of $500,000 in general liability coverage and active workers' comp.

Labor is the biggest line item on most bids, and the New Jersey market sets the floor: construction workers here average $42.12 an hour — about $87,620 a year — across 167,649 workers statewide, per Bureau of Labor Statistics data. That puts New Jersey among the pricier construction labor markets in the country, so expect quotes to reflect it.

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