A vented, dirt-floor crawl space pulls in humid air all summer and stays damp all winter — encapsulation seals that cycle off completely and it usually shows up on your energy bill within a season.
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Four commitments that separate a properly trained crawl space encapsulation crew from a generalist showing up with a truck and a hope.
Certification covers proper venting decisions, dehumidifier sizing, and moisture-source diagnosis before any liner goes down.
Crawl space inspections are scheduled quickly because early mold growth only gets more expensive to remediate the longer it sits.
You'll see a line-item breakdown covering liner, sealing tape, vent covers, and dehumidifier if one is recommended.
Dehumidifiers, when installed, are crawl-space-rated units with drainage tied into an existing sump or gravity discharge, sized to the cubic footage of the space.
We don't run a one-size-fits-all playbook — every crawl space encapsulation job starts from these core service components, adapted to what your property actually needs.
Seams are taped and mechanically fastened at wall terminations so the barrier performs as one continuous system, not a patchwork of loose sheeting. This is the baseline fix for most crawl spaces showing chronic humidity above 60%.
Older homes with foundation vents are actually pulling humid outside air in during summer months — the opposite of what venting was originally intended to do.
Even a fully encapsulated crawl space can hold residual moisture from concrete curing, plumbing condensation, or seasonal humidity swings. Units include a humidistat so the system only runs when actually needed, not continuously.
We install a dedicated sump basin and pump sized for the space's water intake, tied into the encapsulation system's drainage channel.
Prolonged moisture exposure softens floor joists and sill plates well before it's visible from inside the home.
Here's the exact path from your call to a finished encapsulation.
A quick phone triage helps us bring the right liner mil-thickness and dehumidifier sizing information to the first visit.
You'll get a text confirmation with an arrival window before the technician heads out.
Pricing is itemized: liner and sealing, vent covers, dehumidifier if recommended, and any sump work needed.
Encapsulation work carries a written warranty against liner failure and seam separation.
What London, OH customers are saying after their crawl space encapsulation service.
"The musty smell that used to reach our upstairs bedrooms is completely gone since they encapsulated the crawl space."
"They showed us the mold on the joists with a camera before we ever agreed to anything — appreciated the transparency."
"Dehumidifier they installed keeps the readout right around 45% humidity year-round now. Huge difference from before."
"Sump basin they added handled a heavy rain last month without a drop making it under the new liner."
The questions London customers ask us before booking crawl space encapsulation service.
Our crawl space encapsulation crews cover London and the surrounding London, OH service area, with regional dispatch keeping response times tight regardless of which part of the footprint you're in.
Unsure whether crawl space encapsulation service reaches your address? Call +1-866-476-1348 and dispatch will confirm right away.
Notice: Arrow Tight Waterproofing is a free referral service designed to assist homeowners and businesses in connecting with independent local contractors. All contractors and service technicians are independent and Arrow Tight Waterproofing does not warrant or guarantee any work performed. It is the responsibility of the customer to verify that the hired contractor furnishes the necessary license and insurance required for the work being performed. All calls are routed to independent local service providers.
