Common questions about crawl spaces
- Crawl space is infested with mold, how do we go about properly fixing it?
- Does crawl space encapsulation increase home value?
- Does encapsulating a crawl space really work and is it worth the money?
- How does a vapor barrier function?
- How imperative is it that a house is anchored to a crawl space?
- How much does it cost to encapsulate the crawl space for a 3,000 sq ft house? Is it worth it?
- How much wood moisture in your crawl space can you tolerate
- How to get rid of moisture in a crawl space
- I had my crawl space encapsulated and outside vents sealed. Why have my radon levels gone up?
- I was told of an add-on for my crawl space encapsulation: insulation under the 20 mil white casing. Is that preferred?
- If a house already has a vapor barrier, is there a need for another one?
- If the humidity in your crawl space is 60-70% but in your house it’s lower, do you still need to fix the crawl space?
Dover crawl space encapsulation — local context
Yes — 603 Basement Solutions encapsulates crawl spaces in Dover, Norfolk County, Massachusetts (the town southwest of Boston, not Dover, NH). Encapsulation here means a 12-mil wall / 20-mil floor vapor barrier, dimpled drainage matting, a dehumidifier, and a sump — sealing a dirt or fieldstone crawl space against ground moisture. Dover earns it: per Wikipedia, the town sits on the south banks of the Charles River and was first settled in 1640, so its older homes often rest on the fieldstone foundations we specialize in. Per the Native Fish Coalition, Dover's Trout Brook runs through open floodplains that historically regulated high water — a real local moisture driver, not a regional generality. And because Norfolk County is EPA Radon Zone 2 (predicted indoor average 2–4 pCi/L), a crawl space doubles as a radon path; radon mitigation, if needed, is a separate add-on, typically $1,950–$2,250. Crawl space encapsulation runs $3,000–$25,000; ask about sub-membrane radon systems.
What a recent customer said
"Gerald and his crew did an excellent job, first cleaning out all the debris and the dislodged insulation in the crawlspace. they were very communicative and understood my concerns and handled them professionally. When they were finished laying the sublayment and the top vinyl covering, carefully taping all the seams they put insulating foam around the perimeter, sealing the top of the vinyl. Gerald communicated two issues that were not part of the contract that I will subsequently take care of myself. Great job, very satisfied." — Alex C Arcisz, 5★
Frequently asked questions
Is Dover, MA in a radon zone that affects crawl spaces?
Yes. Dover is in Norfolk County, which the EPA maps as Radon Zone 2 — a predicted average indoor screening level between 2 and 4 pCi/L. A dirt or fieldstone crawl space is a common radon entry path, so EPA recommends fixing a home at 4 pCi/L or higher and considering action at 2–4 pCi/L. We can pair encapsulation with a sub-membrane radon system; mitigation is a separate add-on, typically $1,950–$2,250.
Why do older Dover homes need crawl space encapsulation?
Dover was first settled in 1640 and incorporated as a town in 1836, so many homes here are centuries old and sit on fieldstone foundations — exactly the older New England construction we specialize in. Those porous, irregular foundations let ground moisture into the crawl space. A 12-mil wall / 20-mil floor vapor barrier with drainage matting, a dehumidifier, and a sump seals that out.
Does Dover's geography make crawl spaces damp?
It can. Per Wikipedia, Dover sits on the south banks of the Charles River, and per the Native Fish Coalition the town's Trout Brook flows through open floodplains that historically regulated high water. That combination of river proximity and floodplain drainage feeds the ground moisture and humidity that an encapsulated, sealed crawl space is built to control.
Crawl Space Encapsulation in nearby New England towns
More 603 services in Dover
- Basement Waterproofing in Dover, MA
- Basement Finishing in Dover, MA
- Foundation Crack Repair in Dover, MA
- Radon Mitigation in Dover, MA