A vented, dirt-floor crawl space pulls in humid air all summer and holds onto it all winter — encapsulation cuts that cycle off completely, often noticeably within a season.
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What "specialized" actually means for crawl space encapsulation at our company — not a marketing word, a set of specific practices.
Our crews understand stack effect, dew point, and vapor drive, not just how to lay down a liner.
Crawl space inspections are scheduled quickly, since early mold growth only gets more expensive the longer it sits.
No surprise charges for pier count or vent sealing — those are accounted for during the initial walkthrough.
Seams are heat-taped or mechanically sealed, and liner is run up piers and foundation walls, not just laid flat on dirt.
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. This is the baseline fix for most crawl spaces showing chronic humidity above 60 percent.
Older homes with foundation vents are often pulling humid outside air in during summer months — the opposite of what venting was originally meant to do.
A properly sized dehumidifier drained to a sump or gravity line keeps relative humidity below the threshold where mold and wood-destroying insects thrive. We size units to cubic footage, not floor area, since ceiling height varies significantly between crawl spaces.
We install a dedicated sump basin and pump sized to 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.
Four steps, start to finish — from the first call to a sealed, humidity-controlled crawl space.
Tell dispatch what you're noticing — musty smell, visible mold, sagging floors above — and they'll route a crew with moisture-testing equipment.
Technicians arrive with moisture meters, a borescope camera, and sample liner material to show what's being proposed.
Pricing is itemized: liner and sealing, vent covers, dehumidifier if recommended, sump work if needed.
We'll walk you through the finished space with a moisture meter so you can see the readings yourself.
What Poy Sippi, WI customers are saying after their crawl space encapsulation service.
"The musty smell that used to reach our upstairs bedrooms is gone completely since the encapsulation."
"They showed us mold on the joists with a camera before we agreed to anything. Appreciated the transparency."
"Dehumidifier keeps the readout right around 45 percent year-round now, a huge change from before."
"Sump basin they added handled a heavy rain last month without a drop making it under the new liner."
The questions Poy Sippi customers ask us before booking crawl space encapsulation service.
Arrow Tight Waterproofing provides crawl space encapsulation throughout Poy Sippi, WI, dispatching from regional staging points to keep arrival times short across our full coverage footprint.
Our encapsulation coverage area grows as we add regional crews, so a past 'outside our area' answer may no longer be accurate.
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.
