20.8% of occupied homes in West Deptford Township heat with electricity. That is double the Gloucester County share of 10.5% and the highest of any town we cover in this county, and it is the number that decides how an insulation job here is scoped, sold and paid for. Gas heats 67.1%, well below the county’s 77.8%, and 9.1% still burns oil.
The stock is unusually mixed for a township of 9,665 units. Only 56.2% is detached — the rest is 13.4% attached townhouses and duplex halves, 11.1% in buildings of twenty or more units, 3.3% in three- and four-unit buildings and 3.7% mobile homes. The median unit dates from 1976, 20.9% went up in the 1940s and 50s, 32.6% in the 1960s and 70s, 22.0% in the 1980s and 90s and 20.1% since 2000. 57.9% predates 1980 and 73.2% of occupied units are owner-occupied.
So there is a real apartment and rental component here that is not our work, and a large, older, owner-occupied core along the Delaware River side of the township that very much is. Everything below is about the second group.
The houses we insulate in West Deptford
The postwar cohort is the heart of it. 17.3% of the township dates from the 1950s and 3.6% from the 1940s: small ranches, capes and story-and-a-half houses in Colonial Manor, Thorofare, Verga, Parkville, Red Bank and West End. The cape fails at the knee wall — batts on the room side with no air barrier behind them, floor joists running under the knee wall out to an open eave, unbaffled slopes, a shallow flat above. The ranch fails across a long low attic of settled loose-fill with open top plates and chases and an ungasketed hatch.
21.0% of the stock is 1970s and 11.7% is 1960s: split-levels, bi-levels and larger ranches. A split has two or three separate attic planes at different heights with knee walls between them, and insulating only the top one leaves most of the ceiling area untouched. The bi-level adds a lower level half below grade and a bedroom over the garage with open joist bays under its floor.
This is coastal-plain ground with the Delaware River and Mantua Creek on two sides of the township — 2.45 of its 17.81 square miles are water. A good share of the older houses sit on crawl spaces rather than full basements, and a vented crawl with sagging batts and bare ground below is a heat loss in winter and a humidity source in summer. We seal the vents, lay a ground cover, insulate the crawl walls and rim, and bring the crawl inside the house. Where a crawl or lower level has taken water we do not put closed-cell foam on a surface that floods; the work goes into the floor deck above and the rim.
18.3% of the township went up in the 2000s alone. Those walls are full and blowing more into them is the wrong sale. The job is the air handler and duct trunk in a vented attic, cathedral slopes framed without baffles, recessed cans and the garage ceiling. The 1,291 attached townhouse and duplex units get the party wall closed at the attic plane first, since in most of them it stops at the ceiling line instead of running tight to the roof deck; an end unit with a full exposed gable wall is always the bigger scope.
Two forms here we usually cannot help with. The 11.1% of units in buildings of twenty or more are apartments and condominiums whose envelope belongs to an owner or a board, not to the person in the unit; the useful call is to the building. The 356 mobile and manufactured homes have a sealed belly board with the ducts inside it and a shallow roof cavity, and cutting into either without the manufacturer’s instructions does more harm than good. Colonial Manor also holds Ladd’s Castle, a brick house from about 1688 and the county’s oldest; solid masonry has no cavity to fill, so there the work is the roof plane, the cellar and the rim, never a drilled wall.
Electric heat and what it changes in West Deptford
One home in five here heats with electricity, and that changes three things. The first is the bill. Electric baseboard or a heat pump means no fuel delivery and no gas meter, so the loss shows up as one high electric bill in January and again in July, and the owner usually cannot tell how much heat is escaping until someone measures it.
The second is where the loss happens. Baseboard houses have no ductwork, which removes a whole category of leakage but puts every dollar into the envelope: the attic plane, the knee walls, the rim, the crawl. Heat-pump houses do have ducts, and in the newer ones they run through the vented attic and lose in both seasons. A heat pump also loses capacity as it gets colder, so cutting the load with air sealing does more for comfort than it would on a gas furnace that simply runs longer.
The third is the rebate. Every gas utility’s Whole Home program requires gas heat and an active gas account, so an electrically heated West Deptford house cannot use one. Its path is PSE&G’s program, which covers electric customers as well as gas. That is simple here, because PSE&G is the electric utility for nearly all of the township.
We seal before we insulate
Insulation slows heat moving through a surface. It does nothing about air moving through a gap. In an electrically heated house that distinction is money: the baseboard just runs longer and the meter keeps counting.
In the 1950s cape and ranch that dominates the older side of West Deptford the sequence is: seal the crawl vents, lay the ground cover, insulate the crawl walls and rim; then block the joist bays at the eave under a cape’s knee wall and put an air barrier on its back side, seal the top plates, chases, cans and attic hatch, baffle the eaves and slopes, vent the bath fans outside, then bring the attic to depth. In a split, every attic plane gets the same work, not just the highest.
If a quote specifies a depth of insulation and never mentions air sealing, it is half a job.
What insulation costs in West Deptford
Most of our projects run between $3,500 and $12,500. Here the number moves with whether there is a crawl space to close, how many attic planes a split has, the feet of knee wall and eave to block in a cape, whether ducts exist at all, and whether a lower level has taken water. A townhouse is usually the low end unless it is an end unit. Our spray foam cost guide has more.
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 West Deptford
West Deptford is one of the few Gloucester County towns that is PSE&G for both electric and gas, though South Jersey Gas serves roughly a fifth of the township on the gas side. Check the gas bill before you assume.
PSE&G Whole Home Energy Solutions pays up to $7,500 in rebates toward air sealing, insulation and related work, plus 0% on-bill repayment of up to $25,000, seven years for projects of $10,000 or less and ten above that. It starts with a home energy assessment by a BPI-certified contractor participating in PSE&G’s program, and the contractor sets that fee. PSE&G does not publish what each measure pays, so “up to $7,500” is as precise as anyone can plainly be. Separately, PSE&G’s Whole Home Energy Assessment is free once a year for a residential customer in a home of fewer than five units — the walk-through with LEDs and door sweeps, not the modeled assessment that drives the rebate.
Because 20.8% of the township heats with electricity and another 9.1% with oil, PSE&G’s program fits most of these houses. Where the gas bill says South Jersey Gas and the house has gas heat, its Whole Home Energy Solutions is the alternative: up to $7,500, calculated as $2,000 for a modeled five percent energy saving plus $200 for every point above that and capped at half the project cost, with 0% on-bill repayment of $2,500 to $25,000 and a complimentary Whole Home Energy Assessment. A house billed by two companies can use either program; start with whoever bills your heating fuel.
PSE&G Home Weatherization and South Jersey Gas Home Weatherization for Income-Qualified Customers install insulation, air sealing and duct sealing at no cost between 250% and 400% of the federal poverty level. New Jersey Comfort Partners does the same at or below 250%, $82,500 a year for a family of four in 2026, and refers oil, propane and kerosene homes to the state weatherization office instead.
The New Jersey IRA Home Energy Rebates have not launched; the state’s page says the programs are in development and not open for applications. The federal Section 25C tax credit ended for anything placed in service after 31 December 2025, so there is no federal insulation credit on a 2026 job. The full picture is in our New York and New Jersey rebate guide.
Code and climate in West Deptford
57.9% of West Deptford went up before New Jersey’s first statewide energy subcode of 1 January 1978, which covers the whole Colonial Manor and Thorofare postwar cohort and the splits behind it. Gloucester County is climate zone 4A on the coastal plain, a milder heating climate than the northern counties, which puts more of the savings in the cooling season.
New Jersey adopted the 2024 IECC on 17 August 2026. New construction gets R-49 ceilings — the 2021 edition it replaced asked for R-60 — walls at R-30 cavity or R-20 plus R-5 continuous, windows at U-0.30 in zone 4A, and air leakage of 3.0 air changes per hour at 50 pascals. A complete permit application filed under the old code is still accepted until about 16 February 2027. R-49 is what we design to.
An existing house falls under New Jersey’s Rehabilitation Subcode: insulating an attic does not require bringing the rest of the house to current code and does not require a blower-door test. Blown-in or batt insulation 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 West Deptford
Do you install insulation in West Deptford, NJ?
Yes, in the houses and townhouses: Colonial Manor, Thorofare, Verga, Parkville, Red Bank, West End and the newer developments. Most of our work is the 1940s and 50s cape and ranch, 20.9% of the stock, and the 1960s and 70s splits, another 32.6%, plus the 1,291 attached units. We do not work on the apartment and condominium buildings of twenty or more units, where the envelope belongs to an owner or a board, or on manufactured homes.
How much does insulation cost in West Deptford?
Most projects run $3,500 to $12,500. What moves it is whether a crawl space is being closed, how many attic planes a split-level has, the feet of knee wall and eave to block in a cape, whether the house has ducts at all, and whether a lower level has flooded and needs a different assembly. A townhouse is usually the low end unless it is an end unit with a full gable wall. You get a written scope and price after a free walk-through.
Are there insulation rebates in West Deptford?
Yes. West Deptford is PSE&G for electric and mostly PSE&G for gas, with South Jersey Gas on part of the township. PSE&G Whole Home Energy Solutions pays up to $7,500 in rebates plus 0% on-bill repayment of up to $25,000, starting with an assessment by a BPI-certified contractor in the program. PSE&G’s lighter Whole Home Energy Assessment walk-through is free once a year. Income-qualified households can get the work at no cost. There is no federal 25C credit on a 2026 job.
We heat with electric baseboard. Is insulating worth it without a furnace to improve?
Yes, and arguably more so. Electric resistance heat converts every unit you buy into heat, so the only way the bill comes down is to lose less through the envelope. With no ducts there is no duct leakage to chase, which means the whole scope goes into the attic plane, the knee walls, the rim and the crawl, where it is measurable. It also matters for the rebate: gas utility programs require gas heat, so an electrically heated house goes through PSE&G’s program.
Free energy audit in West Deptford
We walk every attic plane the house has, the knee walls and eaves, the chases, the garage ceiling and the party wall in a townhouse, then the crawl space or lower level, the rim and any ductwork. If your heat is electric we look at where the load actually is rather than at equipment we cannot change. Then a written scope and a price. No charge, no obligation.
Call 914-825-6824 or use the form. Open 8am–8pm, seven days. We work out of New Rochelle, NY with a 100-plus in-house crew and we never subcontract, and we hold manufacturer installer certifications from the spray foam manufacturers we use.
Learn more
- Insulation contractors across Gloucester County
- Insulation contractors in Deptford
- Insulation contractors in Woolwich Township
- Insulation contractors in Mantua Township
- New York and New Jersey insulation rebates in full
- Crawl space insulation and air sealing
- What happens during an energy audit