Crawl Space Encapsulation in Cherry Hill, NJ
South Jersey’s clay soil and humid summers turn open, vented crawl spaces into a moisture problem waiting to happen. We seal it out for good, with a system built for Camden County homes.
- Licensed & insured in New Jersey
- Serving Cherry Hill, Marlton, Voorhees & Camden County
- Free written estimates
Wet Crawl Space in Cherry Hill? We Can Fix It.
A damp crawl space is more than an inconvenience. It feeds mold, weakens floor framing, and drives up your energy bills every month it’s left unsealed.
Waterproofing Cherry Hill installs full crawl space encapsulation systems for homes across Camden County — from older houses near Haddonfield to newer builds in Voorhees and Marlton.
Every crawl space is different, so we start by finding out exactly where the moisture is coming from before we recommend a fix.
What Is Crawl Space Encapsulation?
Encapsulation means fully sealing your crawl space from outside air, ground moisture, and water intrusion. We install a heavy-duty vapor barrier across the floor and walls, seal the foundation vents, and add drainage or dehumidification where needed.
The goal is simple: stop moisture before it becomes mold, wood rot, or a structural problem.
This matters more in Cherry Hill than in many other places. South Jersey summers are humid, and Camden County’s clay-heavy soil doesn’t drain well. Combine that with older homes built with vented crawl spaces, and you get the perfect setup for moisture problems. Encapsulation corrects that design flaw directly.
Signs You Need Crawl Space Encapsulation
Some crawl space problems are easy to spot. Others build up slowly. Here’s what to watch for in your Cherry Hill home.
Musty Odor
A musty smell usually means moisture is trapped below your floors. It often travels up into your living space and gets worse in summer humidity.
Standing Water or Damp Dirt
Puddles or wet dirt under the house after a storm mean your crawl space is taking on water it shouldn’t. This is common in low-lying parts of Cherry Hill Township.
High Humidity or Condensation
Sweating pipes or a damp feeling in your crawl space point to high humidity that spreads into your home’s air, not just the space below it.
Mold on Wood Beams
Dark spots or a fuzzy texture on floor joists is mold. Left alone, it spreads fast and can weaken the wood over time.
Higher Energy Bills
An open, vented crawl space lets outside air move freely under your home, forcing your HVAC system to work harder every month.
Sagging or Soft Floors
Wood rot from long-term moisture exposure weakens floor joists. Soft or bouncy floors can mean moisture damage is already affecting your home’s structure.
Our Crawl Space Encapsulation Services in Cherry Hill
We handle every part of the process, from sealing to long-term moisture control.
Vapor Barrier Installation
A heavy-duty vapor barrier is sealed across the floor and up the foundation walls, creating a permanent barrier between your home and the ground below.
Mold Remediation & Prevention
Existing mold is treated before we seal the space. Encapsulating over untreated mold just traps the problem inside.
See our mold remediation process →Crawl Space Vent Sealing
Foundation vents are sealed to stop humid outside air from entering — a key step that a vapor barrier alone doesn’t cover.
Dehumidifier Installation
For crawl spaces with higher humidity, a dedicated dehumidifier sized for the space keeps relative humidity in a safe range year-round.
Drainage & Sump Pump Installation
For crawl spaces with standing water, interior drainage connected to a sump pump actively removes water instead of just covering it up.
See French drain installation →See sump pump installation →
Crawl Space Insulation
Rigid foam insulation is added to foundation walls after encapsulation, helping regulate temperature and reduce energy loss.
Structural Repair
Where moisture has already damaged wood, support beams and floor joists are repaired or replaced before the space is sealed.
See foundation crack repair →A Real Crawl Space Encapsulation in Cherry Hill
An exposed dirt crawl space before treatment, and the same space fully sealed and encapsulated.
Why Crawl Spaces Flood & Stay Damp in Cherry Hill
Moisture problems aren’t random. In South Jersey, it usually comes down to the ground and the way older homes were built.
An open foundation vent like this lets humid outside air straight into the crawl space — common in Cherry Hill homes built before the 1990s.
Clay Soil & Poor Drainage in South Jersey
Much of Camden County sits on dense clay soil. Clay doesn’t absorb water quickly, so rain pools near foundations instead of draining away — and finds its way into crawl spaces through walls and dirt floors.
Groundwater & Heavy Rain Runoff
Cherry Hill gets its share of heavy spring and summer storms. Without proper grading and drainage, runoff collects around the foundation and seeps into the crawl space below.
Older Homes With Vented Crawl Spaces
Many Cherry Hill homes built before the 1990s were designed with open foundation vents, based on the idea that airflow keeps crawl spaces dry. In our humid climate, it does the opposite.
Similar Foundations in Voorhees & Mount Laurel
Homes in Voorhees and Mount Laurel were often built during the same era, with the same vented crawl space design. If a neighboring home has this issue, yours may too.
Why Cherry Hill Homeowners Choose Us
Focused Only on Waterproofing
We don’t split our attention across unrelated services. We’ve seen nearly every kind of crawl space and basement problem a South Jersey home can have.
Honest Diagnosis Before Any Sale
If your crawl space doesn’t need full encapsulation, we’ll tell you. We recommend what your home actually needs, not the most expensive option.
South Jersey Soil & Drainage Expertise
We know the ground under Cherry Hill because we work in it regularly — that local experience shapes the recommendation, not a generic checklist.
Straightforward, Written Pricing
Every estimate is written down before work starts. What we quote is what you pay — no hidden fees added once the job is underway.
Licensed, Insured & Certified
We’re a registered New Jersey home improvement contractor, fully insured, so you’re protected if anything unexpected happens on the job.
More about our team →Financing Available to Qualified Buyers
Crawl space encapsulation is a real investment. We offer financing options so you can get the work done now and pay over time.
What We Actually Do
No pressure, no guesswork. Here’s exactly what happens from your first call to a written warranty in your hand.
Free, In-Person Inspection
We inspect the crawl space in person, checking for moisture levels, existing damage, drainage issues, and structural concerns.
We Explain What We Found
You’ll know exactly what’s causing the moisture and why — in plain language, before any proposal.
Custom Encapsulation Plan & Written Estimate
Every crawl space is different, so the plan and price are built around what your home actually needs, in writing, before you commit.
Sealing, Barrier Installation & Drainage
Our crew installs the vapor barrier, seals vents, and adds drainage or dehumidification as needed. Most projects take one to three days.
Final Walkthrough & Warranty
We walk you through everything installed and hand you written warranty terms for the specific system — not a verbal promise.
What Crawl Space Encapsulation Actually Costs
Pricing depends on crawl space size and condition, not a flat rate. Here’s what drives the number.
Covers the crawl space floor and walls with a sealed vapor barrier and closes off foundation vents. Priced per square foot — custom quote after inspection.
Vapor barrier, vent sealing, and a dedicated dehumidifier for ongoing humidity control. Priced per square foot — custom quote after inspection.
Added when standing water is present. Interior drainage connected to a sump pump actively removes water from the space.
The biggest cost driver isn’t just square footage — it’s whether the crawl space already has mold, wood rot, or standing water that needs to be addressed before sealing. We give you the real number after a free inspection, in writing, not a phone-guessed range.
Vapor Barrier Alone vs. Full Encapsulation
A basic vapor barrier covers the floor but leaves vents and walls exposed to outside air. It helps with ground moisture but doesn’t stop humid air from entering the space.
Full encapsulation seals the entire crawl space — floor, walls, and vents — and adds a dehumidifier where needed. If your crawl space has ongoing humidity, standing water, or mold, this is the more complete fix.
Given Cherry Hill’s climate and soil, most homes with an active moisture problem need the full system, not a partial fix. We’ll tell you honestly which one applies to your home.
Trusted by Homeowners Across Camden County
We work on crawl spaces and basements throughout Cherry Hill and South Jersey — the same team handles your inspection, your proposal, and your installation, start to finish.
No subcontracted crews and no sales-only reps. The person diagnosing your crawl space is accountable for the fix.
About Our Team
Areas We Serve Near Cherry Hill
We provide crawl space encapsulation throughout Cherry Hill and the surrounding Camden County area.
Marlton & Voorhees
Homes here often share Cherry Hill’s clay soil drainage issues and vented crawl space designs from the same building era.
Moorestown & Mount Laurel
A mix of historic and newer construction means crawl space conditions vary — we assess each home individually.
Haddonfield & Collingswood
Older housing stock in these towns often has original foundation construction where crawl space updates are overdue.
Pennsauken
Many older homes still have original vented crawl spaces that were never updated, leading to long-term humidity buildup.
FAQs
How long does crawl space encapsulation take?
Most residential crawl space encapsulation projects in Cherry Hill take one to three days, depending on the size of the space and how much repair work is needed before sealing.
Does encapsulation stop radon?
Encapsulation alone is not a certified radon mitigation system. Sealing the crawl space can reduce radon entry as part of a broader air quality strategy, but if radon is a specific concern, a separate radon test and dedicated mitigation system are recommended.
Does crawl space encapsulation add value to my Cherry Hill home?
A dry, sealed crawl space is generally seen as a positive by home inspectors and buyers, since it reduces the risk of mold, structural damage, and air quality issues. It’s a maintenance and protection investment rather than a guaranteed dollar-for-dollar return.
Do you offer a warranty on crawl space work?
Yes. Our encapsulation systems come with written warranty terms, reviewed with you during your free inspection and outlined in your quote.
Is crawl space encapsulation worth the cost?
For homes with ongoing moisture, mold, musty odors, or high humidity, encapsulation addresses the root cause instead of masking symptoms. It typically costs more upfront than a standalone dehumidifier but prevents recurring mold treatment, wood rot repair, and pest issues over time.
How do I know if I need encapsulation or just a vapor barrier?
A basic vapor barrier covers the floor but leaves vents and walls exposed. If your crawl space has ongoing humidity, standing water, or mold, a barrier alone usually isn’t enough — full encapsulation is the more complete fix for most Cherry Hill homes given our climate and soil.
Who Do I Call for Crawl Space Encapsulation Near Me in Cherry Hill?
Call us at +1 (856) 652-8553 for a free, in-person inspection — we serve Cherry Hill and Camden County directly, with the same team handling your inspection, proposal, and installation.
Get Free Inspection