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Verified record
No state license for this trade. Maine doesn't license or register waterproofing / foundationbusinesses, so there's no state registry to check. That's true of every waterproofing / foundation business in the state, not a mark against this one. Insurance is self-reported.
Highlights
- Spray and insulation work — a 2025 customer said Dale and Kelly did both
- A missed appointment — a 2025 customer said Brent Pratt never showed or called back
Mid Coast Waterproofing describes itself on its BBB page as offering spray-applied waterproofing products, such as Tuff-N-Dri H-8 and Watchdog H-3, for new foundations. Its BBB grade is A+. A 2025 customer said Dale and Kelly came to spray as well as insulate the family's new camp, and called them pleasant and professional. A 2025 customer seeking help with a basement leak said an email through the company site went unanswered, followed by two calls the next week. That 2025 customer said Brent Pratt agreed to come the next day, then did not show and never called back to reschedule.
Read the comments
Most recent comments
- 5.0Nov 3, 2025
We had Mid-Coast Waterproofing come and spray as well as insulate our families new Camp. Dale and Kelly were pleasant, professional and did an excellent job. We are very pleased
— Scott RankinView on Google Reviews ↗ - 1.0May 16, 2025
If I could give zero stars I would. I emailed from the company site and did not hear back. I then called twice the next week. Finally, I spoke to Brent Pratt, who agreed to come the next day. He called and left a message that afternoon and asked me to call him back, which I DID indeed do, within 30 minutes and left a voicemail. Days later, he did not call back, he did not show and never called back to reschedule. If you are searching for professional, reliable company that can help with this basement leak, I would steer far away from this one!
— Tina D'AmoreView on Google Reviews ↗ - 4.0Nov 20, 2024
Delivery n°1 Vers nice
— Sébastien MartinsView on Google Reviews ↗
What does basement waterproofing cost in Greater Portland?
Typical your area range for this kind of work, from regional averages — not a quote from MID COAST WATERPROOFING. Use it to sanity-check bids, then get the real number in writing.
Not sure which you need? Start with an inspection — many reputable companies assess free, and independent assessments run up to $500.
The wall run getting the drain — a full 30×40 ft basement is about 140 ft.
Estimated range
$7,600 – $15,000
Typical waterproofing project around $11,300
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