Spray Foam Insulation in New Jersey

Spray Foam Insulation Near You in New Jersey

Searching for spray foam insulation near me in Bergen County, Hudson County, Essex County, Morris County, or down the Shore? Liquid Green services most of New Jersey from our Brewster NY headquarters. We have regular jobs across the state and a strong base of builder and developer relationships in North Jersey.

New Jersey is geographically compact but environmentally varied. North Jersey is dense, urban, and tightly connected to NYC. Central Jersey is suburban, with a mix of older post-war housing and newer subdivisions. The Shore has a distinct housing stock — elevated coastal homes, raised ranches, and vacation properties. We work on all of it.

Where We Spray in New Jersey

We cover most of New Jersey, with most of our work concentrated in these counties and towns:

• Bergen County — Paramus, Hackensack, Englewood, Fort Lee, Ridgewood, Teaneck, Bergenfield, Englewood Cliffs, Tenafly, Mahwah, Ramsey, Wyckoff, Glen Rock, Fair Lawn, Garfield, Lodi, Rutherford, Lyndhurst, North Arlington
• Hudson County — Jersey City (all neighborhoods: Downtown, Journal Square, Heights, Greenville, Bayonne, Hoboken, Weehawken, West New York, North Bergen, Union City, Secaucus, Kearny, Harrison, East Newark
• Essex County — Newark, East Orange, Orange, West Orange, South Orange, Maplewood, Montclair, Bloomfield, Glen Ridge, Belleville, Nutley, Verona, Cedar Grove, West Caldwell, North Caldwell, Fairfield, Roseland, Livingston, Millburn, Short Hills
• Morris County — Morristown, Madison, Florham Park, Chatham, Summit (Union County, but adjacent), New Providence, Berkeley Heights, Morris Plains, Parsippany, Hanover, East Hanover, Randolph, Dover, Rockaway, Denville, Boonton, Mountain Lakes, Kinnelon, Lincoln Park, Pequannock, Montville
• Passaic County — Paterson, Clifton, Passaic, Wayne, Little Falls, West Paterson, Totowa, Haledon, North Haledon, Hawthorne
• Union County — Elizabeth, Union, Hillside, Roselle, Roselle Park, Linden, Cranford, Garwood, Westfield, Mountainside, Scotch Plains, Fanwood, Plainfield, North Plainfield, Springfield, Summit, New Providence, Berkeley Heights
• Monmouth County — Long Branch, Asbury Park, Ocean Grove, Deal, Allenhurst, Loch Arbour, West Long Branch, Eatontown, Red Bank, Rumson, Sea Bright, Monmouth Beach, Sea Girt, Manasquan, Spring Lake, Belmar, Avon-by-the-Sea, Bradley Beach, Ocean Township, Neptune, Wall Township, Tinton Falls, Colts Neck, Holmdel, Middletown, Hazlet, Keansburg, Matawan, Keyport, Union Beach, Atlantic Highlands, Highlands, Sandy Hook
• Ocean County — Toms River, Beachwood, Pine Beach, Island Heights, Lavallette, Seaside Heights, Seaside Park, Ortley Beach, Mantoloking, Bay Head, Point Pleasant Beach, Point Pleasant, Brick, Lakewood, Jackson, Howell
• Middlesex County — New Brunswick, Highland Park, Edison, Woodbridge, Perth Amboy, Sayreville, South Amboy, Old Bridge, East Brunswick, North Brunswick, South Brunswick, Cranbury, Plainsboro, Monroe, Jamesburg, Spotswood, Helmetta, Milltown
• Mercer County — Princeton, Princeton Junction, West Windsor, East Windsor, Hightstown, Cranbury (also in Middlesex), Hamilton, Trenton, Ewing, Lawrenceville, Pennington, Hopewell, Robbinsville

If your town isn't listed, ask us — we cover most of NJ.

What We Install in NJ

Older North Jersey homes with masonry walls

Hoboken, Jersey City, Montclair, Newark, and parts of the older North Jersey suburbs have a lot of solid masonry construction — brick, block, stone, and concrete. These walls were never insulated. Spray foam is the right answer:

• Apply closed cell to the interior face of the masonry, which adds R-value, controls moisture migration, and stops air leaks through the wall assembly
• Alternatively, drill-and-inject closed cell into hollow masonry cavity walls (similar to a brownstone retrofit in NYC)
• Seal rim joists with closed cell — typically the #1 air-leakage location in these homes
• Insulate attic / roof assemblies with open cell on the floor or closed cell on the underside of the roof deck

Jersey Shore homes

Elevated coastal homes, raised ranches, and vacation properties along the Shore have their own insulation challenges — wind exposure, salt air, moisture, and tight building assemblies. Closed cell is the standard for shore homes because it:

• Acts as a vapor barrier — critical in moisture-prone shore environments
• Adds structural rigidity — important for elevated homes exposed to high winds
• Resists pests (no food value for rodents or insects) — important for seasonal homes that sit empty for months
• Provides the highest R-value per inch — important where wall thickness is limited

New construction

New-construction subdivisions across Central and South Jersey — Cranbury, Princeton Junction, Robbinsville, Toms River, Jackson, Manalapan — are a growing share of our work. Same system as elsewhere: open or closed cell, sized to the assembly, meeting code with thinner walls than fiberglass would require.

Commercial

Warehouses (especially along the I-95 and NJ Turnpike corridors), retail, light industrial, restaurants, and institutional projects. Closed cell is standard for commercial NJ work. The commercial guide covers the deeper approach.

What Spray Foam Insulation Costs in NJ

NJ pricing is similar to the broader tri-state market — new-construction open cell at the lower end, retrofit closed cell higher. Per-job pricing in NJ is often slightly lower than NYC due to less access and logistics overhead, but higher than the Hudson Valley. Our cost per square foot guide covers the variables. The right number for your project comes from a site visit and quote.

NJ Codes & Climate

New Jersey homes fall under the NJ Uniform Construction Code, which adopts the 2021 IECC with NJ-specific amendments. NJ is in IECC climate zone 5A (mixed humid) across most of the state, with pockets of 4A in the south and 6A in the northwest highlands. The IECC zone drives minimum R-values, and the right foam (open vs. closed) depends on the assembly and moisture exposure — especially for Shore homes and masonry retrofits in the older North Jersey cities.