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Best basement waterproofing pros near Unity, ME

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

Avatar for Royal Flush Plumbing, LLC
Royal Flush Plumbing, LLC
4.9(
45
)
Basement Drainage Channels - Install

Serving Unity, ME and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

"First let me start withâ ¦I know all of the tradesmen and women are BUSY! Thereâ s never not a need. I respect that. I also value my own time and money. Being a homeowner is stressful and when something goes wrong, you need support and someone you trust that can help you. Iâ m a single mom and I work hard for all that I have. When I began to have a major plumbing issue, I was stressed!!! My home was built in 1900. It has a single pipe drain system to the city sewer. It became clogged (very slow moving) and guess what began slowly backing up into my basement?! You guessed it! Everything being flushed from my home. 𠤢 I called SIX plumbers. You know how many called me back? One, Royal Flush. (Again, respectfully..I understand how busy they are, but just a call back saying I canâ t would have been more helpful than radio silence) I called Royal Flush, left a message. Within minutes received a call back. By the end of the conversation, they would be here this afternoon!!!! What?! No way?! Today?! And guess what else??? They showed up, when they said they would. So informative. So kind. So professional. My stress and anxiety are gone and I can breathe easy again. Listen, owning a home is expensive but Iâ m more than happy to spend my money on quality, professionalism, and a company I can count on! Thank you Royal Flush for helping this mom out and removing some extensive stress!!!"
Response time4 hrs
Response rate90%
Recommended by93%of homeowners
Avatar for Baker Electric and Sons
Baker Electric and Sons
4.1(
17
)
Basement Drainage Channels - Install

Serving Unity, ME and surrounding areas

Approved

In business since 2015

Emergency services offered

Credit card accepted

"Kevin called me the same day I posted the pro request. I scheduled him to come by to do a quote two days later and hired him at that point. Kevin replaced a scary exterior electrical outlet and power cord that powers a pool pump. The power cord was coming out of the ground and arcing and the old outlet was melted around a socket. Not good. Kevin fixed it right up and replaced and greatly improved the whole set up, including installing an exterior outlet and switch that are both protected by the weather. Very impressed and will hire Kevin again."
Response time2 days
Response rate91%
75 neighbors recently requested a quote
Evergreen Plumbing Solutions
5.0(
3
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Unity, ME and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

Evergreen Plumbing Solutions is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Response time2 days
4 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Shaw Excavation & Earthwork, LLC
Shaw Excavation & Earthwork, LLC
5.0(
4
)
Basement Drainage Channels - Install

Serving Unity, ME and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Small jobs welcome

"Highly recommended! Shane talked with us as well as walked our property giving us step by step direction on what he was going to do As well as his input and advice on what to use, placement of house, driveway etc! Shane and Jared started and finished doing exactly what was needed in a great timely manner. Their work was detailed and neat and we could not be happier!! We will definitely be reaching out to Shane and his crew for any further work we will need at our property! Thanks again!!"
Start of Demolition
House Demo After
House Lot After
Finished clearing
Before Lot

+1

Response time1 day
Response rate90%
7 neighbors recently requested a quote
Avatar for Maine House Lifting
Maine House Lifting
New to Angi
Basement Drainage Channels - Install

Serving Unity, 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
Avatar for Eastern Maine Drainage
Eastern Maine Drainage
5.0(
7
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Unity, ME and surrounding areas

In business since 2024

Free estimates

Small jobs welcome

"Eastern Maine Drainage was quick to assess our problem and Nate was able to set up an appointment within a few days to remedy our drainage issue. He was on time, communicated clearly, and was tidy with his work. Since I was at work while he was installing the new sump pump and drain line, he kept me in the loop about his progress. He had a detailed estimate that he stuck to, and he even deducted the cost of some PVC when he realized he didn't need as much as he initially planned. I would recommend him to anyone needing work in their basement."
Full Sump Pump install
Sump Pump Install
Trench drainage system
Trench drainage system
Drywall Demo Job

+6

Response time3 days
Response rate90%
Recommended by28%of homeowners
Avatar for octagon-restoration
octagon-restoration
4.7(
96
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Unity, ME and surrounding areas

In business since 2002

Free estimates

Emergency services offered

"After a hot water pressure relieve valve water leak in my basement caused some headache I called Octagon Cleaning who was out the next day. A brief assessement and the crew was at work cleaning up the mess. Great crew, very professional, and fast! Will definetly use again and recommend to anyone needing the service."
Water extraction.
Octagon vehicles
Drying structure damaged by water.
MOLD REMEDIATION
Dirty air duct.

+2

Response time6 hrs
Response rate100%
Recommended by90%of homeowners
Avatar for Hilltop Drain & Plumbing
Hilltop Drain & Plumbing
4.7(
119
)
Basement Drainage Channels - Repair

Serving Unity, ME and surrounding areas

In business since 2021

Free estimates

Emergency services offered

"Hilltop Drain and Plumbing came to declog the main sewer drain that had backed up in our basement and had started to flood. It was pretty expensive but they did a good job and their response time was quick. $975 for 3 hours emergency plumbing on a Saturday evening. I would hire them again especially since plumbers in Maine seem to be going extinct."
Response time3 hrs
Response rate87%
Recommended by91%of homeowners
Avatar for New England Home Renovations LLC
New England Home Renovations LLC
4.0(
311
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Unity, ME and surrounding areas

In business since 1983

Free estimates

Emergency services offered

"Everything went wonderfully with this company.  They were very professional, listened to exactly what my problem was, and explained to me how they were going to diagnose the problem and/or solve it before doing any actual work.  Once they started, the team (three people came) worked together like a well-oiled machine.  One was in the room with diagnostics, one was at the fuse box looking for possible problems there, and the third went into the crawlspace beneath our house to look at the physical wiring.  Once the problem was found (there was a faulty wire beneath the house that had come loose from the junction box), it was fixed and tested within minutes and another full diagnostic was done to make sure there were no other possible issues.  They cleaned up after themselves very neatly.  They also replaced the light switch with a dimmer switch at no extra cost!  Well within my budget, and came in even lower than their original (FREE) estimate!  I would highly recommend this company to anyone in the Bergen County area.
"
Before
After's
New boiler install
Removal of cast Iron to PVC.
Additional Photos

+37

Recommended by89%of homeowners
Showing 1-10 of 28
Basement Waterproofing FAQs, answered by experts

The primary downside to crawl space encapsulation is the high cost, which can be several thousand dollars. Additionally, the process can make future repairs more complicated by limiting access to plumbing and electrical wiring within the crawl space. Encapsulation also requires sealing off any vents, which can be a disadvantage for home designs that benefit from the airflow they provide. It's recommended to consult with a crawl space contractor to determine if the benefits outweigh these potential drawbacks for your specific home.

Brick is designed to absorb moisture, but it is also designed to let it evaporate as well. So in general, the goal shouldn’t necessarily be keeping moisture out but making sure it has the room to breathe. If you have excess moisture getting through your brick wall, it’s more likely that you have a crack or other issue at play that a typical sealant won’t fix. So, instead of investing in sealant, try repairing your brick wall instead.

You can DIY basement waterproofing in some ways to help save on the overall costs. If your basement isn’t experiencing a lot of water but is noticeably humid, you can try running a dehumidifier that will pull the excess water out of the air. If you notice water leaking due to outdoor drainage issues, you can add downspout extensions to keep rainwater away from your home. 

However, if the problem is more severe and requires a more extensive solution, it’s best to call a basement waterproofing professional to assess the treatment you need and install waterproofing safeguards properly. Since keeping water out of your basement is important, ensuring this job is done correctly the first time is best.

The difficulty of adding a basement to an existing house can vary depending on the house’s location, the size of the basement, and the type and condition of the existing foundation. Adding a basement is a job best handled by the pros, so you’ll need to enlist professional help for this project.

Although the two terms are closely related and often used interchangeably, pier and beam foundations and crawl spaces are different things. A pier and beam foundation is made up of concrete piers and wooden beams and creates a space under the home known as a crawl space. There are several types of foundations that create crawl spaces, often collectively known as “crawl space foundations,” but the crawl space itself is separate from the foundation. 

The Unity, ME homeowners’ guide to basement waterproofing services

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