How much does it cost to finish a crawl space?

• <div><p>If you don’t wish to dig it out and convert it into a finished basement, you can still <a href="https://www.angi.com/articles/how-much-does-crawl-space-encapsulation-cost.htm">encapsulate your crawl space</a> to protect it from damage for an average cost of <b>$5,500</b>. 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.</p></div>

Get matched with top basement waterproofing pros in Sumner, ME

Q: When should you not use a dehumidifier?

• <div><p>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. </p></div>

Q: Is it okay for a crawl space to be wet?

• <div><p>No, you don&rsquo;t want your crawl space to be wet because water and even moisture in the air under your home can attract insects and rodents, decrease your indoor air quality, increase your energy bills, promote mold growth, and even lead to structural damage. If you notice any signs of water or humidity in your crawl space, you should get the issues addressed immediately by contacting a professional. They can remove moisture and will know <a href="https://www.angi.com/articles/how-to-waterproof-your-basement.htm">how to waterproof your basement</a> to prevent ongoing problems. </p></div>

Q: How much does it cost to finish a crawl space?

• <div><p>If you don&rsquo;t wish to dig it out and convert it into a finished basement, you can still <a href="https://www.angi.com/articles/how-much-does-crawl-space-encapsulation-cost.htm">encapsulate your crawl space</a> to protect it from damage for an average cost of <b>$5,500</b>. Finishing a crawl space beyond this isn&rsquo;t really worthwhile, as the low ceilings mean you won&rsquo;t be able to use the area as living space.</p></div>

Q: How long does flooded basement cleanup take?

• <div><p>Flooded basement cleanup can take anywhere from a few days to several weeks, depending on the extent of water damage, the type of water involved, and the need for repairs or mold remediation. Severe cases with structural damage or extensive mold may require longer timelines. Quick action and professional help can speed up the process and reduce overall damage.</p></div>

Q: What's the difference between a vapor barrier and insulation?

• <div><p>A vapor barrier keeps moisture out of the crawl space, while insulation reduces the amount of unconditioned air&mdash;and sometimes moisture&mdash;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&rsquo;t get damaged from moisture, like rigid foam board or expanding spray foam insulation.</p></div>

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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 January 17, 2026

Reviewed in August 2025
Shad worked efficiently with impressive attention to detail. He showed up on time, went right to work and only stopped to eat. The biggest thing that impressed me however was his safety awareness, whenever old glass broke he took the time to clean it up and wore proper footwear. He had the best...
Shad Gagnon LLC
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Reviewed in July 2025
Worked hard in the very hot and humid conditions. Very personable and gave me great advice on how to avoid problems in the future.
RM Septic
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Reviewed in June 2025
Noah exceeded my expectations at a competitive price . Clear communication, and fast! His estimate was spot on and it was clean and professional work. Noah did a 60amp sub panel install for my new garage, and also wired in four new outlets in my basement as I only had one down there. Thanks...
Parker Electric LLC
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Reviewed in February 2025
Very professional. I explained to them my situation in my basement and they got the job done! Impressed with their professionalism and ability to communicate with me. I recommend RZ Demo 100% and will contact in the future.
RZ Demo LLC
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Reviewed in July 2022
Wendell and his crew are very professional and provided great workmanship to restore our aging basement that needed a new floor and parging of all walls. They are very neat, hardworking and delivered a product above and beyond our expectations. We highly recommend Wendell and Key...
Key Waterproofing Construction
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Reviewed in June 2019
Frank showed up on time and fixed my air conditioner.
Duca Heating & Cooling, LLC
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Reviewed in March 2015
I was fortunate to have found Bob and have him undertake a monumental task. I recently purchased a 1935 Cape and knew it required a complete electrical upgrade due to neglect and some very unsafe, unprofessional and amateurish wiring. When Bob arrived to assess the electrical debacle he...
Bradley Electric LLC
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Reviewed in September 2013
It went perfectly. They arrived on time, offered an estimate based on the pile I had in the basement. It turned out to be a lot more than they had judged, but still gave me the same price AND they cleared some more junk that they noticed in the backyard, for no extra. Wonderful company. Great...
Junk King Portland
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Reviewed in August 2013
The side of my house I had accumulated a great deal of junk from the basement and work around the house and yard. The clean up was a job I did not want to tackle. I set an appointment, they came and had the job done quick and with a much appreciated level of professionalism. I will be calling...
Dump Guy
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Reviewed in February 2009
This contractor situation was awful. Bob Engdahl contracted for a job to be paid a contractors fee, with the understanding that whatever work he personally did on the job would be covered under his contractor's fee and not billable hours. He triple-billed, didn't finish the job, billed for...
BOB'S OLD HOUSE RESTORATION
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Find Basement waterproofing pros in Sumner

New Leaf Construction

4.78(

)

New Leaf Construction

4.78(

)

Customers say: Quality work

Recommended by 91% of Angi 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

"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

TC Hafford Basement Systems Inc

4.46(

)

TC Hafford Basement Systems Inc

4.46(

)

Customers say: True professional

35 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

HRC

5.00(

)

HRC

5.00(

)

Customers say: Quick response

Recommended by 100% of Angi 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

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

Chad T on June 2024

Dorian Visionheart Dyer

4.80(

)

Dorian Visionheart Dyer

4.80(

)

Customers say: True professional

Recommended by 100% of Angi 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.

Hampton Enterprise LLC

3.40(

)

Hampton Enterprise LLC

3.40(

)

37 years of experience

Our mission at Hampton Enterprise LLC is to provide clients with superior customer service, quality work and speedy service in all aspects of their home improvement needs. Licensed, insured and trusted since 1989; come discover the Hampton difference today! We specialize in the installation and repair of Windows, Doors, Flooring, Sinks, Bathtubs, Showers, Sprinkler Systems and much more. We also offer Interior and Exterior Home Painting, Custom Welding Fabrication and Carpentry.Localy in your area just call and i will call back with a local number thank you . from James Hampton AL.Dothan 334-648-3817, AL Birmingham 334-648-3817, AL Huntsville 334-648-3817, AL Mobile 334-648-3817, AL Tuscaloosa 334-648-3817, AL Montgomery 334-578-4761, AR Little Rock 334-648-3817, AZ Phoenix 334-648-3817, CA LosAngeles/Sacramento 334-648-3817, CO Denver/Colorado Springs 334-648-3817, CT Hartford 334-648-3817, DE Dover 334-648-3817, FL Tallahassee 334-648-3817, FL Cape Canaveral/ Cocoa 334-648-3817, FL. Destin 334-648-3817, FL Gainsville 334-648-3817 Fl Jacksonville 334-648-3817, FL Orlando 334-648-3817, FL Panama City 334-648-3817, FL Tampa 334-648-3817, FL Miami 334-648-3817, GA Atlanta 334-648-3817, GA Albany 334-648-3817, GA Augusta 334-648-3817, GA Columbus 334-648-3817, GA Macon 334-648-3817, GA Valdosta 334-648-3817, IA Des Moines 334-648-3817, ID Boise 334-648-3817, IL Chicago/Springfield 334-648-3817, IN Indianapolis 334-648-3817, KS Levenworth/Topeka 334-648-3817, KY Frankfort 334-648-3817, LA New orleans/Baton Rouge 334-648-3817, MA Boston 334-648-3817, MD Annapolis 334-648-3817, ME Augusta 334-648-3817, MI Detroit/Lansing 334-648-3817, MN Saint Paul 334-648-3817, MO kansas City/Jefferson City 334-648-3817, MS Jackson 334-648-3817, MS Biloxi 334-648-3817, MS Gulf Port 334-648-3817, MT helena 334-648-3817, NC Raleigh 334-648-3817, ND Bismark 334-648-3817, NE Lincoln 334-648-3817, NJ Trenton 334-648-3817, NM Santa Fe 334-648-3817, NV Carson City 334-648-3817, NV Las Vegas 334-648-3817 NY Albany 334-648-3817, OH Columbus 334-648-3817, OK Oklahoma Ciy 334-648-3817, OR Salem 334-648-3817, PA harrisburg 334-648-3817, RI Providence 334-648-3817, SC Columbia 334-648-3817, SD Pierre 334-648-3817, TN nashville 334-648-3817, TX Austin 334-648-3817, UT Salt Lake City 334-648-3817, VA Richmond 334-648-3817, VT montpelier 334-648-3817, WI Madison 334-648-3817, WV Charleston 334-648-3817, WY Cheyenne 334-648-3817

"They guys suck."

Penny S on February 2024

"They guys suck."

Penny S on February 2024

NORTHEAST MODULAR HOMES

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NORTHEAST MODULAR HOMES

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Free onsite estimate

FINANCING AVAILABLE.

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

19 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.

Webb Insulation, LLC

No reviews yet

Webb Insulation, LLC

No reviews yet

13 years of experience

Family owned business based in Houlton, ME. We service the entire state of Maine, specializing in Spray Foam Insulation.

Showing 1-10 of 11

Basement Waterproofing questions, answered by experts

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.

No, you don’t want your crawl space to be wet because water and even moisture in the air under your home can attract insects and rodents, decrease your indoor air quality, increase your energy bills, promote mold growth, and even lead to structural damage. If you notice any signs of water or humidity in your crawl space, you should get the issues addressed immediately by contacting a professional. They can remove moisture and will know how to waterproof your basement to prevent ongoing problems.

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.

Flooded basement cleanup can take anywhere from a few days to several weeks, depending on the extent of water damage, the type of water involved, and the need for repairs or mold remediation. Severe cases with structural damage or extensive mold may require longer timelines. Quick action and professional help can speed up the process and reduce overall damage.

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.

The Sumner, ME homeowners’ guide to basement waterproofing services

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

See all articles

Angi
•
Dec 20, 2025Dec 20, 2025
How Much Does Basement Waterproofing Cost? [2026 Data]
Need to fix basement water problems or safeguard your home from damage in the future? Use this basement waterproofing cost guide to budget appropriately.
Timothy Moore
•
Dec 22, 2025Dec 22, 2025
How Much Does a Sump Pump Battery Backup Cost? [2026 Data]
Sump pump battery backup costs depend on the type and the design of the system purchased. Follow this guide to learn how to budget for your backup battery.
Angi
•
Oct 20, 2025Oct 20, 2025
How Much Does Sump Pump Installation Cost? [2026 Data]
Discover how much sump pump installation costs, including average prices, key cost factors, and tips to save on your basement waterproofing project.
Michael Kwan
•
Nov 25, 2024Nov 25, 2024
Where Does Sump Pump Water Go? A Guide for Homeowners
Choosing where the sump pump water goes affects the effectiveness and longevity of your sump pump system. These tips can help guide you in the right direction.
Derek Rose
•
Nov 4, 2025Nov 4, 2025
Does Crawl Space Encapsulation Add Value to Your Home?
Before investing in a pricey vapor barrier, does crawl space encapsulation add value to your home? The answer is a little more complicated than you expect.
Deane Biermeier
•
Feb 27, 2025Feb 27, 2025
5 Questions to Ask About Foundation, Basement, or Crawlspace Encapsulation
If your home's crawlspace has water issues, here are the crawlspace encapsulation questions you should be asking a contractor about the project.

What do you need done? We’ll find top pros.

🌱 "Mow a small front yard"
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Need a pro for your basement waterproofing project in Sumner, ME?

Concrete Foundation Repair

Batt, Rolled or Reflective Insulation Install or Upgrade

Seamless Metal Gutters Installation

Verified Reviews for Basement Waterproofing pros in Sumner, ME

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New Leaf Construction

New Leaf Construction

TC Hafford Basement Systems Inc

TC Hafford Basement Systems Inc

HRC

HRC

Dorian Visionheart Dyer

Dorian Visionheart Dyer

Hampton Enterprise LLC

Hampton Enterprise LLC

NORTHEAST MODULAR HOMES

NORTHEAST MODULAR HOMES

K.C. Renovations

K.C. Renovations

Unversal Home Renovations

Unversal Home Renovations

Sustainable Structures, Inc.

Sustainable Structures, Inc.

Webb Insulation, LLC

Webb Insulation, LLC

The Sumner, ME homeowners’ guide to basement waterproofing services

How Much Does Basement Waterproofing Cost? [2026 Data]

How Much Does a Sump Pump Battery Backup Cost? [2026 Data]

How Much Does Sump Pump Installation Cost? [2026 Data]

Where Does Sump Pump Water Go? A Guide for Homeowners

Does Crawl Space Encapsulation Add Value to Your Home?

5 Questions to Ask About Foundation, Basement, or Crawlspace Encapsulation

Get our Angi-powered app

Get matched with top basement waterproofing pros in Sumner, ME

Enter your zip and get matched with up to 5 pros

Need a pro for your basement waterproofing project in Sumner, ME?

Concrete Foundation Repair

Batt, Rolled or Reflective Insulation Install or Upgrade

Seamless Metal Gutters Installation

Verified Reviews for Basement Waterproofing pros in Sumner, ME

Find Basement waterproofing pros in Sumner

New Leaf Construction

New Leaf Construction

TC Hafford Basement Systems Inc

TC Hafford Basement Systems Inc

HRC

HRC

Dorian Visionheart Dyer

Dorian Visionheart Dyer

Hampton Enterprise LLC

Hampton Enterprise LLC

NORTHEAST MODULAR HOMES

NORTHEAST MODULAR HOMES

K.C. Renovations

K.C. Renovations

Unversal Home Renovations

Unversal Home Renovations

Sustainable Structures, Inc.

Sustainable Structures, Inc.

Webb Insulation, LLC

Webb Insulation, LLC

The Sumner, ME homeowners’ guide to basement waterproofing services

How Much Does Basement Waterproofing Cost? [2026 Data]

How Much Does a Sump Pump Battery Backup Cost? [2026 Data]

How Much Does Sump Pump Installation Cost? [2026 Data]

Where Does Sump Pump Water Go? A Guide for Homeowners

Does Crawl Space Encapsulation Add Value to Your Home?

5 Questions to Ask About Foundation, Basement, or Crawlspace Encapsulation

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