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Best basement waterproofing pros near Winthrop, ME

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

Avatar for Forrest Excavation
Forrest Excavation
5.0(
34
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Winthrop, ME and surrounding areas

Approved

In business since 1995

Free estimates

Customers say: Quick response

"I received a phone call from Forest Excavation within 1 hour of my request. They were very professional. The complaint I have is that home advisor contacted a professional no where close to the town I live in. I think if you are going to recommend professionals home advisor needs to correct how their location searches and apply what the person has entered for the demographic info."
Our Work
Our Work
Our Work
Our Work
Our Work

+32

Response time9 hrs
6 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for swb plumbing/hvac
swb plumbing/hvac
5.0(
15
)
Basement Drainage Channels - Install

Serving Winthrop, 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
Evergreen Plumbing Solutions
5.0(
3
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Winthrop, ME and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"What a pleasure doing business with Evergreen Plumbing! Caleb was very helpful and a good communicator on the telephone! Was able to send Zack to my home the same day! He diagnosed my disaster and fixed the leaks under 2 sinks! Quality of life issue that we’d been nursing along for a while! Wonderful to have access to a company that gives prompt friendly excellent service in our area! Highly recommend!! Thank you!"
Response time2 days
4 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Maine House Lifting
Maine House Lifting
New to Angi
Basement Drainage Channels - Install

Serving Winthrop, ME and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality and customer service that we provide to meet every consumer's needs. \nIt is our mission to provide excellent customer service from start to completion of a project. \nTo understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a personal and professional manner. \nOur reputation is based on service, safety and quality, regardless of how large or small the job.

Spray foam insulation
Spray foam insulation
Spray foam insulation
Spray foam insulation
Spray foam insulation

+11

Response time3 days
1 neighbors recently requested a quote
Showing 1-10 of 41
Basement Waterproofing FAQs, answered by experts

Basements with persistent moisture problems or flooding shouldn’t be finished until the moisture issues have been fixed. In addition, if your foundation is cracked, you have unmitigated radon levels, or you have asbestos or lead pipes, remediate the underlying problem before finishing your basement. Turning a basement into living space before fixing these issues can lead to serious health risks or structural damage. 

In perfect conditions—meaning, no overexposure to the elements without roofing material on top of it—an ice and water shield can last for decades. In fact, many come with a limited lifetime warranty because they should last for a long time. If, however, the membrane is exposed to the elements during building or if there is a delay in installing the roofing material, it might only last up to 180 days if exposed to the elements. The key is to make it a layer of protection and then protect that layer by installing the roofing.

To maintain an outdoor structure, perform regular inspections for damage, leaks, and weak joints. Clean the structure regularly, treat or repaint wood surfaces for weather resistance, and reinforce any weak joints to prevent deterioration and ensure its longevity.

In many homes, an unfinished basement is an ideal place for an in-ground pool. The concrete floors, protection against water damage, and access to the ground below your home make this a large contender. Speak with a local basement remodeling contractor to ensure your space is right for the large construction.

If there is standing liquid on your concrete, remove it before attempting any of the above cleaning methods. For small amounts of water, use rags, a bucket, and a mop. For larger areas of liquid, lay down cat litter or baking soda to soak up the water first. If you have extremely large pools of water sitting on your concrete, break out the wet vac and get to work.

The Winthrop, ME homeowners’ guide to basement waterproofing services

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