The Home Insulators

Insulation Contractors in Evesham, NJ

Evesham has 20,090 housing units, more than any other town in Burlington County, and 48.9% of them went up in the 1980s and 90s: 28.6% in the 1980s alone and 20.3% in the 1990s. The median unit dates from 1985. Only 2.1% predates 1940 and 5.7% is 1940s and 50s, because the township kept its farms until the 1950s; the developers who bought them built the 26.8% from the 1960s and 70s, and then most of what stands today.

Marlton is the name on the road signs and most of the mail. Evesham is the township, and Marlton the community inside it, 10,594 people in the old village and the streets around it. 54.0% of units are detached houses and 18.8% are attached townhouses; the rest is garden condos and apartments. 72.0% of occupied units are owner-occupied. Gas heats 77.4% of homes, electricity 18.7% and oil 2.6%.

So the Evesham jobs are the 1980s colonial with its air handler in a vented attic, the townhouse with a party wall open to two attics, and the 1970s split with settled loose-fill.

The houses we insulate in Evesham

Half the township is the 1980s and 90s subdivision house: a two-story colonial, or a contemporary with a two-story foyer and a cathedral family room, built on farms sold off from the 1950s on, along Route 70 and the Marlton Parkway and on the Route 73 side toward Cherry Hill and Voorhees. These houses were insulated when built, R-11 to R-13 in the walls and R-19 to R-30 in the attic, and the walls are not the problem. What fails is what the code never covered: the air handler and its ducts in the vented attic outside the insulation, cathedral and tray ceilings framed without baffles, the bonus room over the garage with open joist bays beneath it, the recessed lights and the bath fans that blow into the attic.

The 26.8% built in the 1960s and 70s is the first wave off the farms: splits, bi-levels and ranches. The Nike Ajax base on Tomlinson Mill Road, opened in 1955 and decommissioned in the mid-1960s, was a housing development by the mid-1990s — the township’s story in one parcel. In a 1970s split the attic loose-fill has settled to half its depth, the eaves are wind-washed, the band joist between levels is open, and the bedroom over the garage sits on joist bays nobody closed. A bi-level has a half-below-grade lower floor with block walls and a slab edge nobody insulated.

18.8% of Evesham, 3,784 units, is attached: the townhouse rows of the 1980s and 90s. The party wall is the assembly. It was built as a fire separation, not an air barrier, and where it meets the roof there is usually a gap the length of the unit, so each home breathes into its neighbors’ attics and out the ridge. The buildings of five to nineteen units are garden condos and apartments, and much of the 18.7% of homes heated with electricity is in them. A unit with electric baseboard and a slab between floors is not a retrofit we can sell; a top-floor unit under a trussed attic is, if the association allows access.

The 2.1% that predates 1940, 420 units, is mostly Olde Marlton, the village named in 1845 that grew on the marl trade and is now a locally regulated historic district. We assume balloon framing and knob-and-tube there until we open a wall, and the wiring comes out first. The 5.7% from the 1940s and 50s is capes and small ranches on the old roads out to Evesboro and Cropwell: knee walls with no air barrier behind them, joist bays open to the eave, a shallow flat attic above. The eastern township lies in the Pinelands National Reserve; a house out there on a crawl space feels the cold through the floor first.

The 1980s house and the furnace in the attic

A 1985 Evesham colonial was built with a full attic of fiberglass, and its owner has been told the house is insulated. It is, and it still costs too much to run, because the builder put the second-floor air handler in that attic, outside the thermal boundary, with flex duct across the joists. Every seam in that duct leaks: the supply side heats the attic, the return side pulls August heat into the system, and the blanket on the floor does nothing for a machine sitting on top of it.

The fix is not more insulation on the floor. It is mastic on the duct joints and the cabinet, insulation on the runs, a sealed platform and trunk chase, baffles in the slopes, and only then the floor topped up to R-49. Where the system is being replaced anyway, foaming the roof deck to bring the attic inside ends the problem for good, and we price that too.

We seal before we insulate

Insulation slows heat moving through a surface. It does nothing about air moving through a gap. Top up a 1980s attic to R-49 over open duct chases and leaking recessed cans, and the bedrooms are as hot in August as they were.

In an Evesham colonial the sequence runs: seal the air handler cabinet and every duct joint, seal the platform and trunk chase, foam the top plates, the plumbing and flue chases, the recessed lights and bath fans, baffle the slopes, close the garage-ceiling joist bays under the bonus room, then blow the attic floor. In a townhouse the party wall comes first, closed at the roof line. Then the rim joist, or the slab edge in a bi-level.

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

What insulation costs in Evesham

Most of our projects run between $3,500 and $12,500. In an Evesham colonial the number moves with the ductwork: the feet of duct in the attic, whether the air handler platform can be reached, the count of slopes and tray ceilings to baffle, and whether the garage ceiling under a bonus room is open. For the foam side of the price, see what spray foam insulation costs.

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 Evesham

Evesham is split between utilities for gas and for electricity, and neither line follows a road you can see. PSE&G supplies electricity to roughly three-fifths of the township and Atlantic City Electric the rest; gas is South Jersey Gas across about two-thirds and PSE&G across the rest. Your bills settle it. Since 77.4% of Evesham heats with gas, start with whichever company bills you for the gas, because the gas programs require gas heat, then confirm with the electric company. A house whose two fuels come from two utilities can go through either one’s Whole Home program; the contractor’s approvals usually decide which takes the lead.

All three run Whole Home Energy Solutions, and all three pay up to $7,500 in rebates per project for work that includes air sealing and insulation, with interest-free financing behind it. South Jersey Gas figures its rebate as $2,000 for a modeled saving of five percent plus $200 for every point above that, capped at $7,500 and at half the project cost, with on-bill repayment of $2,500 to $25,000; it requires gas heat. PSE&G does not publish what each measure pays; its on-bill repayment runs up to $25,000 over seven or ten years, and the work starts with an assessment by a BPI-certified contractor participating in its program, who sets the fee. Atlantic City Electric finances $2,500 to $25,000 through the program’s lender rather than on the bill, and takes single-family residences only, not a condo with separately metered units above or below.

PSE&G’s Whole Home Energy Assessment and South Jersey Gas’s complimentary Whole Home Energy Assessment are free walk-throughs that install small items and point you at the rebate; Atlantic City Electric does not state one. PSE&G Home Weatherization and South Jersey Gas Home Weatherization for Income-Qualified Customers do insulation, air sealing and duct sealing at no cost between 250% and 400% of the federal poverty level, and the Atlantic City Electric Home Weatherization Program does up to $14,000 in improvements plus $2,500 in health and safety updates. New Jersey Comfort Partners does the same at or below 250% of the federal poverty guidelines, $82,500 a year for a family of four; the 2.6% of Evesham on oil is referred to the state’s weatherization office.

New Jersey’s 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. The full picture is in our New York and New Jersey rebate guide.

Code and climate in Evesham

34.6% of Evesham went up before 1980, so most of the township was built under some energy code. The 1960s and 70s splits predate New Jersey’s first statewide energy subcode of 1 January 1978, and the 1980s colonials were built to its earliest editions, which asked far less of an attic than the code does now. Burlington County is climate zone 4A, as are Camden, Mercer, Ocean and Atlantic around it.

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-0.30, 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 the 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 Evesham

Do you install insulation in Evesham, NJ?

Yes, in Evesham and Marlton both, since they are one township. Most of our work here is the 1980s and 90s colonial and contemporary, 48.9% of the stock, where the job is the attic air handler, the ducts, the slopes and the bonus room rather than the walls; the townhouse and its party wall; and the 1960s and 70s split with settled loose-fill. We also do the capes and the balloon-framed village houses of Olde Marlton.

How much does insulation cost in Evesham?

Most projects run $3,500 to $12,500. In a colonial the drivers are the feet of duct in the attic, access to the air handler platform, the count of slopes and tray ceilings to baffle, and whether the garage ceiling under a bonus room is open. A townhouse is smaller but adds the party wall; a split adds a band joist and a garage ceiling. You get a written scope and a price after a free walk-through.

Are there insulation rebates in Evesham?

Yes, and the utility depends on the address: electricity is PSE&G or Atlantic City Electric and gas is South Jersey Gas or PSE&G, so check the bills. All three run Whole Home Energy Solutions with up to $7,500 in rebates plus interest-free financing for a project that includes air sealing and insulation; start with the company that bills your heating fuel. Comfort Partners does the work at no cost at or below 250% of the federal poverty guidelines. The federal 25C credit ended for anything placed in service after 31 December 2025.

Our Marlton townhouse is hot upstairs all summer even though the attic is insulated. Why?

Because the insulation is on the attic floor and the problem is above it. In a townhouse the air handler and its flex duct sit in the vented attic, so every duct leak feeds the attic instead of the bedrooms, and the party wall usually has a gap at the roof line where your neighbors’ attic air and your own trade places. Sealing the ducts and the cabinet, closing the party wall at the plate, baffling the slopes and then topping up the floor is the fix.

Free energy audit in Evesham

We start in the attic with the air handler and its ducts, then the slopes, the recessed lights and the bath fans, then the garage ceiling under any bonus room, then the basement rim or the bi-level slab edge. In a townhouse the party wall at the roof line comes first. Then a written scope and a price, no charge and no obligation. If the attic floor is fine and the whole job is ducts, we say so.

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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