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  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon21
    Verified basement waterproofing services reviews

Verified Reviews for Basement Waterproofing pros in Harrington, DE

*The Angi rating for Basement Waterproofing companies in Harrington, DE 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 Harrington, DE 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 February 18, 2026

Find Basement waterproofing pros in Harrington

Avatar for Quality 1st Basement Systems, Inc.
Quality 1st Basement Systems, Inc.
4.7(
113
)
Basement Drainage Channels - InstallFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Harrington, DE and surrounding areas

Approved

In business since 1999

Free estimates

Warranties offered

"my whole home feels fantastic. very courteous and knowledgeable individuals. I would hire them again for all my basement waterproofing and basement remodeling needs in the future. Its hard to find a family run business with amazing values and professionalism. these guys have it all."
Show Booth
Tough day
Found it in a crawlspace
What is it?
Found it in a crawlspace

+142

Response time1 day
Recommended by88%of homeowners
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Basement Waterproofing Specialists
4.0(
597
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Harrington, DE and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"I had a serious basement flooding problem. I had my basement waterproofed 2 times. it didn't work! Basement Waterproofing Specialists installed a commercial drain system and after 2 years I have never had a drop of water they are AMAZING, thank you Basement Waterproofing specialists YOU ARE THE BEST!"
Foundation Repair
Before and After Stone Work
Mirra Drain
Mold Remediation
Clean Work Areas

+67

Response time11 hrs
282 neighbors recently requested a quote
Recommended by86%of homeowners
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Avatar for AVG Waterproofing
AVG Waterproofing
4.2(
27
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Harrington, DE and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"I had two jobs install a French drain sump pump in my basement and replace concrete in driveway to garage 26 ft by 5 ft and it was all done in a day and a half they cleaned up and left everything neat a crew of seven hard working guys will hire again thank you AVG waterproofing"
Encapsulation
Encapsulation
Basement
Basement
Basement

+11

Response time2 days
60 neighbors recently requested a quote
Recommended by82%of homeowners
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Avatar for Crawl Space Ninja of Delaware
Crawl Space Ninja of Delaware
4.5(
213
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Harrington, DE and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Installation was completed ahead of time despite a heavy rain shower. They arrived on time but forgot to bring floor covering. They called and had the covers within an hour. That did not delay the install."
Crawl Space Before
Crawl Space After
64 neighbors recently requested a quote
Recommended by87%of homeowners
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Avatar for Groundworks
Groundworks
4.2(
538
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Harrington, DE and surrounding areas

Approved (Corporate)

In business since 1997

Free estimates

Warranties offered

"the men who waterproofed my basement were diligent, hard working, respectful, and amenable. great experience with them, job professionals right down the line."
Protect Your Crawl Space
Protect Your Crawl Space
Protect Your Crawl Space
Correct Your Smelly Crawl Space
Protect Your Crawl Space

+16

Recommended by90%of homeowners
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Avatar for Poseidon Plumbing & Home Services, LLC
Poseidon Plumbing & Home Services, LLC
4.6(
238
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Harrington, DE and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Fixed leak under mobile home. Quick, fair price would completely recommend."
Tortilla Shop
Tortilla Shop
Tortilla Shop
Tortilla Shop
Tortilla Shop

+40

Response time5 hrs
Response rate85%
373 neighbors recently requested a quote
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Avatar for '58 Foundations
'58 Foundations
3.2(
34
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Harrington, DE and surrounding areas

Approved

In business since 1958

Free estimates

Small jobs welcome

"They were able to advise that I did not have a basement water problem and instead diagnosed condensation for which they suggested a simple solution. They did not charge"
Crawlspace Encapsulation
Crawlspace Encapsulation
Crawlspace Encapsulation
Crawlspace Encapsulation
Crawlspace Encapsulation

+31

Response time12 hrs
4 neighbors recently requested a quote
Recommended by75%of homeowners
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Avatar for JR Construction
JR Construction
4.7(
13
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Harrington, DE and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.\n

Gallery
15 neighbors recently requested a quote
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Avatar for DryZone, LLC
DryZone, LLC
3.9(
4
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Harrington, DE and surrounding areas

Approved

In business since 2006

Free estimates

Credit card accepted

Welcome to DryZone. LLC! Here at DryZone. LLC, we pride ourselves in not only completing every project to perfection, but creating lasting client relationships in the process. Our motto is "Protect your Investment", and we firmly stand by it. With every project we are given to complete, we promise to treat your home as if it were our own! At DryZone. LLC, extraordinary is the expectation. Give DryZone. LLC a call today, we look forward to earning your business.\n

PowerBraces
Response time1 day
24 neighbors recently requested a quote
Recommended by75%of homeowners
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Rentz Excavation
5.0(
3
)
Basement Drainage Channels - Install

Serving Harrington, DE and surrounding areas

Approved

In business since 2023

Free estimates

Customers say: Quick response

We have the experience, and we are committed to providing quality workmanship and superior customer service on all our applications. We at Rentz Excavation strive to maintain our reputation as a high quality, very service-oriented company with our main focus being customer satisfaction.

Response time10 mins
Recommended by100%of homeowners
Request Quote
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Showing 1-10 of 80
Basement Waterproofing questions, answered by experts

To ensure your basement walls are waterproof, it's crucial to address any existing moisture issues before finishing. Inspect for signs of water seepage, such as dampness or discoloration, and repair any leaks or cracks. Install a vapor barrier to prevent moisture from penetrating the walls, and consider waterproofing paints or coatings.

Proper drainage systems, such as interior or exterior waterproofing, can also be beneficial.

Damp proofing and waterproofing are both methods to help keep your basement dry. Damp proofing keeps soil moisture from entering your basement, which is helpful since your basement is underground. Waterproofing, however, keeps both soil moisture and liquid water out of the basement, which is essential, especially if you live in a wet environment. Because it’s more protective, waterproofing typically costs more than damp proofing.

When doing any type of project involving mold, it's important to wear the right protective gear. You'll want an N-95 or KN-95 mask to keep yourself from inhaling mold spores, which can be irritating or trigger an allergic reaction in people with weakened immune systems. You'll also want to wear protective eyewear and gloves to limit your contact with mold.

Installing a bathroom in a basement isn’t a project for most homeowners. Many parts—plumbing, electricity, and carpentry—go into this project, each requiring expert-level knowledge and tools. One miscalculation can lead to very expensive repairs. Plus, some homeowner’s insurance might not pay for damages caused by a homeowner DIYing this project. You can protect yourself by allowing the pros to complete this job for you. 

Pooling or standing water in your basement should be cause for alarm and action. This indicates that there is a leak or a drainage issue, and until you repair the root of the problem, the situation will only happen again or grow in severity. It’s important to deal with water damage as soon as it occurs.

The Harrington, DE 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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