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Verified Reviews for Basement Waterproofing pros in Sumner, ME

*The Angi rating for Basement Waterproofing companies in Sumner, 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 Sumner, 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 October 05, 2025

Find Basement waterproofing pros in Sumner

HRC

10 Highland Road
5.00(
5
)

HRC

10 Highland Road
5.00(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We specialize in all phases of remodeling for your home, interior and exterior.. We pride ourselves on the quality work we provide, while delivering great customer service. Check out all the services we offer below and call -or- click to schedule a free estimate today!

"Went great. Spencer is very knowledgeable and does great work....HIGHLY RECOMMENDED"

Chad T on June 2024

We specialize in all phases of remodeling for your home, interior and exterior.. We pride ourselves on the quality work we provide, while delivering great customer service. Check out all the services we offer below and call -or- click to schedule a free estimate today!

"Went great. Spencer is very knowledgeable and does great work....HIGHLY RECOMMENDED"

Chad T on June 2024

RWN Property Services Inc.

24 Emery Lane
1.00(
1
)

RWN Property Services Inc.

24 Emery Lane
1.00(
1
)
Customers say: Quick response
27 years of experience

RWN Property Services is a general contracting company that specializes in land care, building maintenance, residential construction and excavation. We have 2 divisions within the company, Basement Authorities which specializes in basement waterproofing, structural foundation repair, dehumidification and helical piering and NuRock Creations which specializes in Decorative concrete, outdoor living, decorative hand carved structural retaining walls, and flat work.

"It has two years of trying to work with Robert Nelson of RWN over simple installation of stairs. In emails he said he would remove the and redo the steps but he never returned. Steps were supposed to replicate in color and texture of two granite steps in place. As you can see in the photo they aren't. Frustrated I asked Small Claims court to help. Thankfully they did and in my favor."

Bob P on January 2019

RWN Property Services is a general contracting company that specializes in land care, building maintenance, residential construction and excavation. We have 2 divisions within the company, Basement Authorities which specializes in basement waterproofing, structural foundation repair, dehumidification and helical piering and NuRock Creations which specializes in Decorative concrete, outdoor living, decorative hand carved structural retaining walls, and flat work.

"It has two years of trying to work with Robert Nelson of RWN over simple installation of stairs. In emails he said he would remove the and redo the steps but he never returned. Steps were supposed to replicate in color and texture of two granite steps in place. As you can see in the photo they aren't. Frustrated I asked Small Claims court to help. Thankfully they did and in my favor."

Bob P on January 2019

Sustainable Structures, Inc.

PO Box 45
No reviews yet

Sustainable Structures, Inc.

PO Box 45
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.

Dorian Visionheart Dyer

3560 South Brandon Street
4.83(
6
)

Dorian Visionheart Dyer

3560 South Brandon Street
4.83(
6
)
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

I am a self-taught artist, initially drawn to experiment with pastels and colored pencil, and now working with acrylic on canvas. My art speaks for itself.

I am a self-taught artist, initially drawn to experiment with pastels and colored pencil, and now working with acrylic on canvas. My art speaks for itself.

TC Hafford Basement Systems Inc

356 North Berwick Rd. #7
4.46(
37
)

TC Hafford Basement Systems Inc

356 North Berwick Rd. #7
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

New Leaf Construction

30 Commercial St
4.78(
23
)

New Leaf Construction

30 Commercial St
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

The purpose of soffits is to circulate air, so a blocked soffit means the air in your attic becomes stagnant. This can lead to a number of problems, mostly moisture-related, that can cause damage to your health and your home. The good news is that unclogging soffits is relatively straightforward, and if your attic is easy to access, an easy DIY project.

A crawl space can be as little as 42 inches below the grade of your house, but this is not always recommended in flood-prone areas. At a minimum, there must be at least 16 inches of clearance between the ground and the floor joists to access the space in an emergency.

It’s not safe to live in a house with water damage until a trained professional gives you the all-clear to return. Mold can grow within one to two days after water damage and weaken your home’s structural integrity. Always have your home inspected after water damage to ensure it’s safe to live in.

Roughing in and connecting utilities are the hardest parts of finishing a basement, and they’re the parts we typically don’t recommend doing as a DIY project. Unfortunately, your finishing timeline can be extended by weeks while you wait for contractors and inspectors to install electrical wiring, plumbing lines, and heating/cooling equipment and carry out inspections.

The cost of basement waterproofing is $4,950 for the average homeowner. However, you could end up paying between $600 and $14,000, depending on factors like basement size, waterproofing method, and the region you live in. 

If you live in an area with heavy rainfall, you might be paying more for waterproofing than if you lived somewhere drier since waterproofing contractors would be in high demand. Likewise, a 500-foot basement costs between $2,500 and $5,000 to waterproof, but that price rises significantly for a larger basement.

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The Sumner, ME homeowners’ guide to basement waterproofing services

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