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Top-Rated Basement waterproofing pros in Porter - Updated Nov 2026

Avatar for swb plumbing/hvac
swb plumbing/hvac
5.0(
15
)
Basement Drainage Channels - Install

Serving Porter, ME and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"So I live in a older house (1947) so the plumbing is older too. Anytime I used my sink dishwasher or laundry the water would all but flood my basement making it almost unusable. I called and talked to Seth he was able to get to my home the next day and diagnose the problem my pipes in the concrete were old and clogged beyond repair well he managed to completely redo all of my plumbing brand new and have it up and running in a matter of a few hours! I now have a dry usable basement. He gave me a very decent price as well! Now hopefully I don't need another plumber anytime soon but if I do I'm calling seth at SWB!"
New condensate line property piped into existing house sewer to code
1 1/2” water mains
3 zone heat pump install
Install condensate pump and neutralizer to bring existing boiler upto code.
1 1/2” water mains insulated after we installed them.

+10

Response time1 day
Response rate100%
31 neighbors recently requested a quote
DryLock Systems of New England
4.2(
9
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Porter, ME and surrounding areas

In business since 1986

Free estimates

Emergency services offered

"Though Rob was extremely courteous and prompt, he quickly diagnosed that we would need to drill into the basement floor to create a sump basin to prevent further flooding, at a total cost of about $4500.00. Wanting a second opinion, I called my plumber. Within seconds of walking into our basement, he found that we already HAD a sump basin, and that an old house trap was clogged and causing backup to the basin. For $1000.00, the plumber removed the house trap and ran the line directly to the sewer, cleaned the sump basin, and we have not had an issue since. In the end, we saved thousands of dollars and a lot of unnecessary drilling which would not have fixed the issue. I do not think that Rob was being deceitful in any way, but I was disturbed that he did not find the existing basin which was under a large, loose tile in the utility room where we stood discussing the issue for 30 minutes. In my desperation to fix the problem, I very nearly did not get a second opinion; boy, am I glad I did!
"
Recommended by100%of homeowners
CZ Plumbing LLC
4.4(
117
)
Basement Drainage Channels - Install

Serving Porter, ME and surrounding areas

In business since 1971

Free estimates

Emergency services offered

"We got TWO (you see in pics one has green seat cover, the other purple) Kohler water saver 1.28gpf plug free toilets! I have special needs with my back and we got exactly what we wanted round bowl and standard height. He upgrades from glacier bay to awesome #1 Kohler us because of an initial miscommunication that we easily worked out. Yay! No more plugging AND water savings so they will pay for themselves within a year. Thank you Chuck. We will call your for our next plumbing job!"
Recommended by94%of homeowners
Avatar for Northeast Home Inspections
Northeast Home Inspections
4.8(
6
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Porter, ME and surrounding areas

In business since 2019

Free estimates

Credit card accepted

"I hired him for a home inspection, a radon air test, and a septic inspection. He arrived within 10 min of appointment time. His home inspection was very thorough and a comprehensive report provided in a timely manner. His radon air test was completed in the basement, rather than the lowest living area (stated that there was a laundry hookup in the basement so it had to do down there, despite a full laundry room on the second floor)"
Attic
Attic Access
Septic
Septic
Septic

+15

Response time4 hrs
Recommended by100%of homeowners
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Basement Waterproofing FAQs, answered by experts

A plastic vapor barrier should completely cover your basement to prevent water from penetrating through the walls. This typically goes before installing insulation to prevent moisture from building up and becoming trapped on the inside of your insulation, where it can collect and lead to mold damage. Installing insulation after the vapor barrier allows for any moisture to exit the walls for better ventilation.

Below-ground shelters are the best in terms of durability, but there is a risk of flooding and obstruction. Modern technology and rigorous construction requirements make above-ground shelters a better option for accessibility, safety, and, usually, your budget. They may not have the same aesthetic appeal, but many of their features make above-ground shelters a better option. 

The best way to ensure the ground next to your home’s foundation drains properly is to divert water away from it as much as possible. While a flood wall can stop water from entering the house, gutters and spouts can help direct rainwater and melting snow away from the foundation. Keep your gutters as clear as possible from dead leaves and other yard debris so they can effectively divert water from your house. Add extenders to the spouts so the water runs out and away from your home, not into the surrounding soil.

A vapor barrier keeps moisture out of the crawl space, while insulation reduces the amount of unconditioned air—and sometimes moisture—that enters the space. Coupling a vapor barrier with insulation can help prevent humidity and related moisture damage in a crawl space while also making your home more energy-efficient. Just be sure to use insulation that won’t get damaged from moisture, like rigid foam board or expanding spray foam insulation.

Installing a bathroom in a basement isn’t a project for most homeowners. Many parts—plumbing, electricity, and carpentry—go into this project, each requiring expert-level knowledge and tools. One miscalculation can lead to very expensive repairs. Plus, some homeowner’s insurance might not pay for damages caused by a homeowner DIYing this project. You can protect yourself by allowing the pros to complete this job for you. 

The Porter, ME homeowners’ guide to basement waterproofing services

From average costs to expert advice, get all the answers you need to get your job done.