Drive through any older neighborhood in New Brunswick, Bound Brook,
or Metuchen and you’ll pass dozens of homes still wearing their original
cement-asbestos siding — those brittle, wavy-bottomed shingles that have
hung on since the Truman administration. If your house is one of them,
you’re facing a common Central Jersey dilemma: is asbestos siding
removal in NJ necessary, or can you side right over it? This guide
covers how to identify cement-asbestos siding, the real pros and cons of
removal versus cover-over, what removal costs in 2026, and what to put
on your house afterward.
What Is Cement-Asbestos
Siding?
From roughly the 1920s through the early 1970s, manufacturers mixed
asbestos fibers into Portland cement to create siding shingles that were
fireproof, rot-proof, insect-proof, and cheap. The product was wildly
popular — especially in the Northeast — and millions of homes got it,
including a large share of New Jersey’s pre-1975 capes, colonials, and
bungalows.
Here’s the part that surprises homeowners: cement-asbestos siding is
one of the less dangerous asbestos products in your home. The
fibers are locked in a hard cement matrix, making the material
“non-friable” — it doesn’t crumble or shed fibers under normal
conditions. Intact asbestos siding on a wall poses little day-to-day
risk.
The danger appears when the shingles are broken, drilled, sawn,
sanded, power-washed aggressively, or demolished. That’s when the cement
matrix fractures and releases fibers — which is exactly what happens
during careless removal or renovation. It’s also why New Jersey
regulates how this material is removed and disposed of.
How to Identify
Asbestos Siding on Your Home
Only lab testing can confirm asbestos, but cement-asbestos shingles
have a recognizable look:
- Size and shape. Typically 12” x 24” rectangular
shingles installed in overlapping rows. - Texture. Often a pressed wood-grain pattern; the
bottom edge is frequently wavy or scalloped. - Feel and sound. Hard, brittle, and stiff — they
crack rather than bend, and tap with a distinct slate-like sound. - Fasteners. Usually two or three nail holes along
the bottom face of each shingle. - Age. If your home was built or re-sided between the
1920s and early 1970s and the siding matches this description, assume it
contains asbestos until tested.
A professional inspection with lab analysis typically costs a few
hundred dollars in New Jersey and settles the question definitively. Our
overview of asbestos
abatement in New Jersey explains how sampling and testing work.
Remove It or
Cover It? The Great Siding Debate
New Jersey homeowners have two legitimate paths, and contractors
argue about this one at lunch. Here’s the balanced view.
The case for covering over
Installing new siding directly over asbestos shingles (or over
furring strips and foam board on top of them) is legal in most
circumstances, avoids disturbance, and skips abatement costs entirely.
It works best when the existing siding is flat, intact, and firmly
attached.
But cover-over has real downsides that don’t show up in the initial
quote:
- The asbestos is still there — you’ve deferred the problem to a
future owner or a future you. - The brittle shingles beneath can crack during installation as new
siding is nailed through them, which is itself a disturbance issue. - Added wall thickness complicates windows, doors, trim, and utility
penetrations. - You must disclose the asbestos when you sell, and some buyers (and
their inspectors and lenders) treat buried asbestos siding as a
negotiating point. - Any future project that opens the walls — an addition, new windows,
storm damage repair — now involves asbestos handling anyway.
The case for removal
Full removal costs more upfront but ends the issue permanently. Your
walls come clean, your insulation and sheathing can be inspected and
upgraded (many of these homes have little or no wall insulation — a real
consideration given New Jersey winters), and your new siding installs
flat on a sound substrate. There’s no disclosure baggage at resale and
no constraint on future renovations or additions.
Our take after two decades in Central Jersey homes: if the siding is
damaged, if you’re planning an addition or window replacement, or if you
intend to stay in or sell the home within the next decade, removal is
usually the better long-term value. If the siding is pristine and budget
is tight, a careful cover-over can be a reasonable bridge. We’ll give
you a direct recommendation for your specific house during a free
consultation — details on our New Jersey asbestos removal service
page.
What Asbestos
Siding Removal Costs in NJ (2026)
Most New Jersey homeowners pay $6 to $12 per square
foot for professional asbestos siding removal, including
containment, disposal, and clearance. For a typical Central Jersey
home:
| Home Size | Approx. Siding Area | Typical Removal Range (2026) |
|---|---|---|
| Small cape or bungalow | 1,000 – 1,300 sq. ft. | $6,000 – $12,000 |
| Average colonial or split-level | 1,500 – 2,000 sq. ft. | $9,000 – $18,000 |
| Larger two-story home | 2,200 – 3,000 sq. ft. | $13,000 – $25,000+ |
Because the shingles are non-friable when handled correctly, removal
doesn’t require full negative-pressure containment like interior work.
Licensed crews remove shingles carefully to avoid breakage, keep
material wetted, lower (never throw) shingles to the ground onto plastic
sheeting, and double-bag or wrap the waste for transport to an
NJDEP-approved disposal facility. Costs vary with home height,
landscaping access, shingle condition, and disposal volume — your quote
will depend on the specifics.
Remember these figures cover removal only. Budget separately for new
siding, and note that removal often reveals sheathing repairs that are
far cheaper to fix now than after new siding goes up.
Replacement
Siding Options for New Jersey Homes
Here’s the upside of removal: your home gets a fresh exterior, and
the options today outperform asbestos shingles in every way that
matters.
Vinyl siding
The most popular replacement in Central Jersey for good reason —
affordable, low-maintenance, and available in dozens of profiles and
colors. Insulated vinyl adds a layer of rigid foam that improves energy
performance on older, under-insulated walls.
Fiber cement
The spiritual successor to cement-asbestos siding, minus the
asbestos. It delivers the same fire resistance and durability with the
look of painted wood clapboard. Heavier and pricier than vinyl, but
exceptional curb appeal and lifespan.
Engineered wood
Real wood appearance with better moisture and insect resistance than
traditional clapboard. A strong mid-range choice for colonials and capes
where you want authentic character.
Cedar and traditional wood
For historic homes in older neighborhoods, natural wood keeps the
original architecture true — at the cost of more maintenance.
Whichever direction you choose, this is where working with a
full-service contractor pays off. Olympus handles the abatement and the
exterior renovation as one project: our carpentry team manages
sheathing repairs, housewrap, trim, and siding installation, so you’re
not coordinating between an abatement company and a separate siding
crew. And because a whole-exterior project is a significant investment,
financing through our Movement Mortgage
partnership can spread the cost into manageable payments.
Frequently Asked Questions
Is asbestos
siding dangerous if I leave it alone?
Intact cement-asbestos siding poses little risk because the fibers
are bound in cement. The hazard comes from breaking, cutting, drilling,
or sanding it. If your siding is in good condition, you don’t need to
panic — but you should plan, especially before any exterior
renovation.
Can I
just paint asbestos siding instead of removing it?
Yes — painting intact asbestos siding with quality exterior paint is
a legitimate maintenance approach and doesn’t disturb the material.
Avoid scraping, sanding, or power-washing at close range to prep it.
Painting is a cosmetic fix, though; the asbestos remains and must be
disclosed at sale.
Can I remove
asbestos siding myself in New Jersey?
We advise against it, and New Jersey’s disposal regulations apply
regardless of who does the removal — asbestos waste can’t go in your
regular trash or a standard dumpster. Broken shingles release fibers,
and improper handling puts your family and neighbors at risk. For most
projects, hire a licensed professional.
Does
asbestos siding affect my home’s resale value in NJ?
It can. You must disclose known asbestos, and many buyers discount
their offers or request remediation credits. Homes with the siding
already removed and replaced typically show better and sell with fewer
negotiation issues.
How long does
asbestos siding removal take?
Most single-family removals in our area take one to three days,
depending on home size and access. Adding new siding installation
typically brings the full exterior project to one to three weeks.
Give Your Home a
Safer, Better-Looking Exterior
If your Central New Jersey home still wears its original asbestos
shingles, you don’t have to figure out the remove-or-cover question
alone. Olympus Construction has spent more than 20 years renovating
homes across Middlesex and Somerset counties, and we’re licensed,
insured, and BBB certified. We’ll inspect your siding, lay out your
options with real numbers, and handle everything from abatement to the
final piece of trim.
Call (732) 418-7111, email
info@olympusconst.com, or contact
us to schedule your free siding consultation.
