The Home Insulators

Insulation Contractors in Passaic County, NJ

38,740 housing units in Passaic County sit in two-family buildings. That is 20.9% of the county’s 185,439 units, with another 10.1% in three- and four-unit buildings, so 31.0% of everything here is a small multifamily house. Only 41.7% is single-family detached, and just 52.8% of occupied units are owner-occupied. Who owns the building is the first question we ask, before anything about the attic.

This is also old stock. The median unit dates from 1956, 28.1% predates 1940, another 28.8% went up in the 1940s and 50s with 17.6% in the 1950s alone, and 78.3% of the county was standing before New Jersey’s first statewide energy subcode of 1 January 1978. Only 12.6% is from the 1980s and 90s and 9.2% from this century. The fuel is gas, 82.1% of occupied homes, with oil at 4.5% and bottled gas at 2.4%, and electricity at 9.6% mostly in apartment buildings.

Two counties share the name. The southeast is flat river ground along the Passaic and the Pompton or mildly hilly against the Watchung ridge, and it holds the density: Paterson, the county seat and its largest city, then Clifton, Hawthorne, Little Falls and Wayne. North and west the land climbs into the Highlands, rugged and full of lakes, where West Milford alone covers more than two-fifths of the county’s land area and Bearfort Ridge stands about 1,480 feet above a river that leaves Clifton at about 20. The eight town pages carry the detail.

The Passaic County towns we work in

Each page gives the town’s numbers, the assemblies that fail there, and its utilities.

  • Paterson — 54.0% of the city is two- to four-family: the owner-occupied stack, sealed from stair chase to cockloft.
  • Clifton — 7,167 two-family houses and a 1952 median year; the pre-war two-family scoped as one building.
  • Wayne — 25.0% built in the 1960s alone, the split-level page, plus the converted bungalows of Packanack Lake.
  • Hawthorne — 2,114 two-unit buildings and 32.9% pre-1940 stock; the two-family scoped as one, stair chase first.
  • West Milford — only 46.9% heats with gas and 28.5% burns oil; converted lake cottages with four attics apiece.
  • Little Falls — 30.0% built in the 1950s alone, the most concentrated decade here: capes, knee walls, riverside basements.
  • Pompton Lakes — three rivers meet here and the valley floods; never closed-cell foam on a wall that takes water.
  • Ringwood — 95.8% detached and 43.1% built in the 1960s and 70s, with one house in five still on oil.

The houses across Passaic County

The two-family is the county’s building. Paterson is 54.0% two- to four-family, Clifton 30.0%, Hawthorne 30.0%, Little Falls 17.2%. In the classic up-and-down version the stair runs from cellar to roof hatch as one open chase, the top unit has a flat or low-slope roof with a shallow cockloft above the ceiling instead of an attic, the cellar and its rim are shared, and there may be one heating plant or two. It has to be scoped as one building, not as two apartments, because the air moves between the floors whatever the deed says. The complication is permission: only 52.8% of the county’s occupied units are owner-occupied and in Paterson only 26.2%, so on most of these streets the person who says yes is a landlord, not the person who is cold.

28.1% of the county predates 1940 — Paterson 33.2%, Hawthorne 32.9%, Clifton 29.8%, Little Falls 19.1% — and almost all of it is balloon framed. The stud bays run uninterrupted from the sill plate to the attic floor, so the cellar and the attic are one connected space and warm air leaves through the walls without touching an air barrier. In those houses we block the bays at the top plate before insulating anything, and we check for pre-1950 wiring first. Many wear wood clapboard, cement shingle or aluminum over the original siding, which decides whether a wall cavity can be reached from outside at all; masonry, stucco and the stone and brick of the older Paterson streets have no cavity to fill, and there we work the roof cavity, the cellar and the rim instead.

The 1940s and 50s added another 28.8%, and what they added was the cape and, right behind it, the split. Clifton is 40.3% from that era, Little Falls 39.3%, Pompton Lakes 37.7%, Ringwood 30.0%, Hawthorne 28.4%, Wayne 24.9%. A cape’s finished second floor is wrapped on three sides by unconditioned attic: a knee wall with nothing on its back, joist bays open into the eave, unbaffled rafter slopes and a shallow flat attic over the middle. The splits and raised ranches that followed — Ringwood is 43.1% from the 1960s and 70s, Wayne 34.4%, West Milford 30.5%, Pompton Lakes 31.8% — put a bedroom over a garage, a second attic at a different height, and settled loose-fill above a ceiling full of unsealed penetrations.

North of Pompton Lakes the county changes entirely. West Milford heats only 46.9% with gas and 28.5% with oil, and Ringwood 71.2% with gas and 20.4% with oil, against 4.5% oil county-wide, because the gas main simply stops in the Highlands. The houses there began as summer cottages on lakes — Greenwood Lake, Upper Greenwood Lake and Pinecliff Lake in West Milford, Cupsaw, Erskine and Skyline Lakes in Ringwood, Packanack Lake and Pines Lake down in Wayne — and were winterized one addition at a time. That leaves three or four small disconnected attics, a floor over a crawl space or piers with nothing sealing the rim, and rooms that were never framed deep enough to hold much insulation. The floor is usually where the cold is coming from, and an oil or propane house shows the saving inside a single heating season.

What we do not take on is the large apartment building. 10.7% of the county’s units are in buildings of 20 or more — Paterson 13.4%, Wayne 12.6%, Pompton Lakes 12.3%, Little Falls 11.0% — and those are masonry or curtain-wall envelopes with no attic and a board or a management company making capital decisions. We say so on the phone, not after a visit, and work the low-rise streets instead.

We seal before we insulate

Insulation slows heat moving through a surface. It does nothing about air moving through a gap. Blow a Clifton two-family’s cockloft to full depth, leave the stair chase open from the cellar to the roof, and the top floor is still cold and the cellar is still pulling in air.

In the county’s dominant building the sequence is: seal the cellar rim and the penetrations through the first floor, close the stair chase where it passes each floor, block the open stud bays at the top plate, seal the ceiling of the top unit — light boxes, plumbing stacks, the roof hatch — and then insulate the cockloft or the flat roof cavity. In a cape it is the knee-wall joist bays and a rigid air barrier behind the knee wall first. In a lake house it is the rim and the floor.

If a quote specifies a depth of insulation and never mentions air sealing, it is half a job.

What insulation costs in Passaic County

Most of our projects run between $3,500 and $12,500. In Passaic the number moves on whether the roof over the top floor is a cockloft or a real attic, since a flat roof cavity is slower and sometimes has to be worked from below; on how many stair chases, floor cavities and party lines are in the scope; on the siding, because cement shingle, brick and stucco each change whether a wall can be reached; and in the north on how many separate attics a cottage collected.

Open cell foam runs R-3.9 to R-4.2 per inch. Closed cell runs R-6.9 to R-7.1 per inch and also acts as a vapor retarder, which is why it costs more and why it is right in some assemblies and unnecessary in others. All products are manufactured in the United States and meet applicable building code and safety standards. After air sealing and insulating, homeowners typically save 20% or more on heating and cooling.

Insulation rebates in Passaic County

PSE&G holds the gas franchise for every municipality in the county, and supplies the electricity too across the dense southeast: Paterson, Clifton, Hawthorne, Little Falls and most of Wayne. In the Highlands the electricity changes hands. Rockland Electric, the New Jersey arm of Orange & Rockland, serves most of Ringwood and most of West Milford; JCP&L serves Pompton Lakes and Wanaque, about a fifth of Ringwood at its southern end, a slice of northern Wayne and part of West Milford; and Butler Electric serves Bloomingdale and a corner of West Milford. In the far north the mains do not reach every road even though PSE&G holds the franchise, which is why so many houses there burn oil or propane.

A house whose gas and electric come from two different companies can go through either one’s Whole Home program. Start with the utility that bills you for the heat and confirm with the other, and note that a gas program requires gas heat, so an oil or propane house in Ringwood or West Milford goes through its electric company.

PSE&G Whole Home Energy Solutions offers up to $7,500 in rebates toward air sealing, insulation and related work, plus 0% on-bill repayment of up to $25,000 — 7 years for projects of $10,000 or less, 10 years above that or for income-qualified customers. It starts with a home energy assessment by a BPI-certified contractor participating in PSE&G’s program, and that contractor sets the assessment fee; PSE&G does not publish per-measure rebate amounts. Separately, PSE&G’s Whole Home Energy Assessment is free for any of its residential gas or electric customers in a home of fewer than five units — which, since PSE&G has the gas everywhere, includes the Rockland Electric and JCP&L towns.

Rockland Electric Whole Home Energy Solutions offers up to $7,500 plus interest-free third-party financing, typically over seven to ten years, with no dollar cap published. Every project must include at least attic air sealing and an attic insulation upgrade where required, the work must be done by a BPI-certified contractor participating in the program, and it is open to existing one- to four-family homes and low-rise multifamily where the owner lives there. Rockland Electric does not state a free walk-through. JCP&L Whole Home Energy Solutions pays up to $7,500 on a published formula — $2,000 at a modeled five percent saving, then $200 a point, capped at half the project cost — with 0% on-bill financing of $2,500 to $25,000, and its own free Whole Home Energy Assessment for customers who own the home.

At no cost, PSE&G Home Weatherization installs insulation, air sealing and duct sealing for households between 250% and 400% of the federal poverty level, and Rockland Electric and JCP&L run the same kind of income-qualified program, JCP&L’s up to $14,000 of work plus $2,500 of health and safety repairs. New Jersey Comfort Partners covers households at or below 250% of the federal poverty guidelines, $82,500 for a family of four in 2026, in buildings of 1 to 14 individually metered units — which fits a great deal of Paterson and Clifton — but refers oil, propane and kerosene homes to the state’s Office of Weatherization instead.

The New Jersey IRA Home Energy Rebates have not launched. The state says they are in development and not open for applications, so they are not available. The federal Section 25C tax credit ended for anything placed in service after 31 December 2025; there is no federal insulation credit on a 2026 job, whatever a mailer still promises. The rest is in our New Jersey rebate guide.

Code and climate in Passaic County

78.3% of Passaic County’s housing was standing before 1980, and almost all of it went up before the state’s first statewide energy subcode of 1 January 1978. A 1925 two-family and a 1954 cape were both built with no insulation requirement at all. Passaic is climate zone 5A, with Bergen, Morris, Sussex and Warren; Essex and Hudson, immediately south and east, are 4A.

New Jersey adopted the 2024 IECC on 17 August 2026. For new construction it sets R-49 ceilings — the 2021 edition it replaced called for R-60, and a complete permit application filed under the old code is still accepted until about 16 February 2027 — with walls at R-30 in the cavity or R-20 plus R-5 continuous, windows at U-0.28, and air leakage of 3.0 air changes per hour at 50 pascals. R-49 is the number the state considers right for this climate, and it is what we design to.

A house already standing falls under New Jersey’s Rehabilitation Subcode. Insulating an attic does not require bringing the rest of the house to code and does not require a blower-door test. Blown-in or batt insulation installed against the interior finish is ordinary maintenance with no permit; spray foam and other foam plastic insulation need a permit, which we pull as part of the job.

Common questions about insulation in Passaic County

Do you install insulation in Passaic County, NJ?

Yes, in the eight towns listed above and the boroughs between them: the owner-occupied two- and three-families of Paterson, Clifton and Hawthorne, the balloon-framed pre-war houses of the river towns, the 1950s capes of Little Falls and Pompton Lakes, the splits of Wayne, and the winterized lake houses of Ringwood and West Milford. Apartment buildings of 20 or more units, whose roofs belong to a board, are not a retrofit we take on.

How much does insulation cost in Passaic County?

Most projects run $3,500 to $12,500. The drivers here are whether the top floor has a real attic or a shallow cockloft under a flat roof, how many stair chases and floor cavities between units are in the scope, whether the siding lets a wall cavity be reached at all, and in the northern townships how many separate small attics a cottage picked up as it was added onto. A single-family cape is usually the lower half of the range.

Are there insulation rebates in Passaic County?

Yes. PSE&G Whole Home Energy Solutions pays up to $7,500 toward air sealing and insulation with 0% on-bill repayment to $25,000, and Rockland Electric and JCP&L each pay up to $7,500 in the northern towns they serve. Because PSE&G has the gas county-wide, its free Whole Home Energy Assessment is open almost everywhere. New Jersey Comfort Partners does the work at no cost at or below 250% of the federal poverty guidelines.

Which utility do I have in Passaic County?

Gas is PSE&G everywhere, though in the Highlands the mains do not reach every road. Electricity is PSE&G in Paterson, Clifton, Hawthorne, Little Falls and most of Wayne, Rockland Electric in most of Ringwood and West Milford, JCP&L in Pompton Lakes and Wanaque and parts of Ringwood, Wayne and West Milford, and Butler Electric in Bloomingdale. The northern townships are really split, so read the electric bill rather than a map.

Free energy audit in Passaic County

In a two-family we walk the cellar and the rim, follow the stair chase up to the roof hatch, and look at the cavity over the top unit before anyone talks about walls. In a cape we go into the eave spaces behind the bedroom knee walls and check the slopes and the flat. In a lake house we start underneath. We look at the siding before pricing a wall, because cement shingle, brick and stucco change the answer. Then a written scope and a price, no charge, no obligation.

Call 914-825-6824 or use the contact form. Open 8am–8pm, seven days. We work out of New Rochelle, NY with a 100-plus in-house crew, and we hold manufacturer installer certifications from the spray foam manufacturers we use.

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