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Verified Reviews for Basement Waterproofing pros in Sullivan, ME

*The Angi rating for Basement Waterproofing companies in Sullivan, ME is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.

*The HomeAdvisor rating for Basement Waterproofing companies in Sullivan, ME is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.

Last update on November 17, 2025

Find Basement waterproofing pros in Sullivan

Avatar for Soucys property improvements llc

Soucys property improvements llc

5.00(
4
)

Soucys property improvements llc

5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Soucys property improvements llc is your go-to handyman. over 15 years experience on improving properties.

"Great! He kept in touch and arrived when he said he would. He is clean and personable. He was able to finish within his estimated time for this project."

Robin B on July 2024

Soucys property improvements llc is your go-to handyman. over 15 years experience on improving properties.

"Great! He kept in touch and arrived when he said he would. He is clean and personable. He was able to finish within his estimated time for this project."

Robin B on July 2024

Unversal Home Renovations

1.00(
1
)

Unversal Home Renovations

1.00(
1
)
38 years of experience

Established in 1987, Universal Home Renovations has over 125 years of combined experience in the building and remodeling trade. We are a privately owned Corporation, family operated & managed.

Established in 1987, Universal Home Renovations has over 125 years of combined experience in the building and remodeling trade. We are a privately owned Corporation, family operated & managed.

Sustainable Structures, Inc.

No reviews yet

Sustainable Structures, Inc.

No reviews yet
18 years of experience

Established in 2007 Sustainable Structures currently has 9 employees and enlists the services of a 6 sub contractors regularly. Residential energy efficiency is our business. We pride our selves in our customer satisfaction and our long term reduction of fossil fuel usage in our home State of Maine.

Established in 2007 Sustainable Structures currently has 9 employees and enlists the services of a 6 sub contractors regularly. Residential energy efficiency is our business. We pride our selves in our customer satisfaction and our long term reduction of fossil fuel usage in our home State of Maine.

Avatar for Weatherization Experts

Weatherization Experts

4.17(
6
)

Weatherization Experts

4.17(
6
)
Customers say: Terrific value
36 years of experience

We have been in the building trade for 25 years and added specialty weatherization 6 years ago. We are certified contractors for Maine State Housing Authority and Efficiency Maine. We are EPA Certified Lead Safe Renovators and fully insured. BPI Certified.

"Horrible Job! This outfit changed their appointment times at least five times before actually starting the job. They blew cellulose insulation into our east bedroom attic, but had complete disregard for the mess they created. They ran the discharge hose up through an open ceiling hatch with no attempt at sealing the opening. As a result, cellulose debris & dust was EVERYWHERE! It took my wife and me several hours of vacuuming, washing items, shaking out blankets and rugs, and serious dusting to get the spaces back somewhat civilized."

Wm G on October 2021

We have been in the building trade for 25 years and added specialty weatherization 6 years ago. We are certified contractors for Maine State Housing Authority and Efficiency Maine. We are EPA Certified Lead Safe Renovators and fully insured. BPI Certified.

"Horrible Job! This outfit changed their appointment times at least five times before actually starting the job. They blew cellulose insulation into our east bedroom attic, but had complete disregard for the mess they created. They ran the discharge hose up through an open ceiling hatch with no attempt at sealing the opening. As a result, cellulose debris & dust was EVERYWHERE! It took my wife and me several hours of vacuuming, washing items, shaking out blankets and rugs, and serious dusting to get the spaces back somewhat civilized."

Wm G on October 2021

TC Hafford Basement Systems Inc

4.46(
37
)

TC Hafford Basement Systems Inc

4.46(
37
)
Customers say: True professional
34 years of experience

Basement Waterproofing, Crawl Space & Foundation Repair experts since 1991. Free estimates & inspections.

"I had a basement waterproofing project done by TC Hafford in March costing over 19K. It is now July and my basement is full of water, once again,on this rainy day. I have been back and forth with this company for months, and after sending someone in who finally admitted to faulty installation, I am still waiting for them to fix their mistakes. I absolutely would never recommend this company to anyone."

Stacey W on July 2024

Basement Waterproofing, Crawl Space & Foundation Repair experts since 1991. Free estimates & inspections.

"I had a basement waterproofing project done by TC Hafford in March costing over 19K. It is now July and my basement is full of water, once again,on this rainy day. I have been back and forth with this company for months, and after sending someone in who finally admitted to faulty installation, I am still waiting for them to fix their mistakes. I absolutely would never recommend this company to anyone."

Stacey W on July 2024

Avatar for New Leaf Construction

New Leaf Construction

4.78(
23
)

New Leaf Construction

4.78(
23
)
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers

New Leaf Construction is the best small contractor that helps home owners take care of their homes. We are a company built on the core values of Integrity, Service, and Excellence, with a focus on quality and open honesty. Our work comes with a guarantee and we stand behind it every day. All of our services are provided under the umbrella of a full insurance policy (available in writing to any client upon request) and we are pleased to offer free estimating as well. We feel the rapidly-increasing number of families who depend on New Leaf Construction to take care of their needs speaks to the calibre of our company and the characteristics of our work.

"Our experience with New Leaf Construction in December led us back to hiring them again for a few additional projects we wanted completed outside this spring. The remodel of our firm over the winter was very successful and it was a pleasure to work with their crew. Their professionalism showed throughout the entirety of the project, from the quality of their work, sensitivity to our timeline, accommodating the needs of our business with as little interruption as possible, cleanliness of their work area, attention to detail, and staying on budget. I highly recommend New Leaf Construction."

Sarah G on May 2018

New Leaf Construction is the best small contractor that helps home owners take care of their homes. We are a company built on the core values of Integrity, Service, and Excellence, with a focus on quality and open honesty. Our work comes with a guarantee and we stand behind it every day. All of our services are provided under the umbrella of a full insurance policy (available in writing to any client upon request) and we are pleased to offer free estimating as well. We feel the rapidly-increasing number of families who depend on New Leaf Construction to take care of their needs speaks to the calibre of our company and the characteristics of our work.

"Our experience with New Leaf Construction in December led us back to hiring them again for a few additional projects we wanted completed outside this spring. The remodel of our firm over the winter was very successful and it was a pleasure to work with their crew. Their professionalism showed throughout the entirety of the project, from the quality of their work, sensitivity to our timeline, accommodating the needs of our business with as little interruption as possible, cleanliness of their work area, attention to detail, and staying on budget. I highly recommend New Leaf Construction."

Sarah G on May 2018

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Basement Waterproofing questions, answered by experts

Regular inspections, maintaining proper grading around the foundation, and keeping gutters clear are advisable. Vapor barriers and sealants may need checking for wear after several years.

If you notice standing water under the deck after rainstorms, you may need a drainage system to efficiently move this water. You do not want standing water to rest against your foundation or against support posts for the deck, as this could cause significant structural problems over time. Make sure the area has proper grading, too.

A sump pump can be added to an existing basement. To do this, you will need to use a jackhammer or sledgehammer to break up the concrete and dig a pit. You will also need to create a hole in your basement wall to run the discharge pipe through.

You should plan on waiting at least a year and ideally two to three years after construction before finishing your basement. This will give the foundation time to settle in response to the weight of your home and the expansion of the surrounding soil. You can then repair your foundation and seal any cracks as needed before finishing it to reduce your risk of future leaks or other issues.

Due to the nature of basements, some level of waterproofing is necessary to prevent water from seeping in and causing damage. Some definitive signs that your basement needs waterproofing measures or needs existing waterproofing measures need to be updated include:

  • Water in your basement, including damp walls or puddles on the floor

  • Mold spots in your basement

  • Musty smells or odors

  • Warped doors or walls

  • Cracks in walls

  • Insect issues, such as cockroaches and termites

The Sullivan, ME homeowners’ guide to basement waterproofing services

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

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