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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 November 16, 2025

Find Basement waterproofing pros in Sumner

Avatar for HRC

HRC

5.00(
5
)

HRC

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

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.

RWN Property Services Inc.

1.00(
1
)

RWN Property Services Inc.

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.

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.

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

Yes, you can technically make a crawl space liveable, but the only way to do so is by converting it into a basement. While some crawl spaces are big enough to walk through and store large items, they lack appropriate insulation and space to be liveable.

If you don’t wish to dig it out and convert it into a finished basement, you can still encapsulate your crawl space to protect it from damage for an average cost of $5,500. Finishing a crawl space beyond this isn’t really worthwhile, as the low ceilings mean you won’t be able to use the area as living space.

While it’s possible to live in a damp basement, it’s usually not healthy to do so. Damp air affects your breathing, and it also promotes mold growth and pest infestation that can make living in a damp basement dangerous. You should plan to resolve any moisture issues and set up preventative measures before using your basement as a living space.

Ideal humidity conditions generally range from 30% to 50%, with 45% considered optimal humidity for most homes. If your humidity levels drop below that range, you can turn your dehumidifier off. Additionally, suppose the temperature where the dehumidifier is installed falls below 60 degrees Fahrenheit. In that case, it's best to turn it off and unplug it since cooler temperatures can cause the unit's coils to freeze.

Permits may be required for major repairs, structural work, or electrical and plumbing restoration after a flood. Check with your local building department to determine permit requirements and associated fees for your flooded basement cleanup project. Obtaining the correct permits helps ensure work is done safely and up to code.

The Sumner, ME homeowners’ guide to basement waterproofing services

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