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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
271 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
62 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
61 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%
378 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
26 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

If your basement often leaks after heavy rain, it’s probably caused by hydrostatic pressure. When the ground is saturated with water, it can put pressure on the exterior of your home’s foundation, causing cracks in the basement wall and pushing water through any existing weak spots. Over time, hydrostatic pressure can cause structural damage to your home.

Crawl space encapsulation typically lasts between 10 to 20 years. If you experience a catastrophic event, like a flood, or poorly encapsulate your space with low-quality materials, it may only last a decade. Otherwise, as long as you properly maintain your crawl space, a high-quality encapsulation can last more than 20 years.

Walkout basements cost more than other kinds of basements, and can also increase your risk of leaks as well as a loss of insulation, leading to higher heating and cooling costs. Improperly installed walkout basements may lead to structural issues with your foundation, so ensure you’re working with a contractor who has extensive experience with this kind of basement.

While it’s possible to seal a foundation yourself, it’s not recommended, as it’s a tricky and labor-intensive job. Foundation sealing is best left to the pros to save yourself time, remove the risk of doing it wrong, and keeping yourself safe. Call a foundation repair professional near you to see what the job will cost.

A sump pump can be added to an existing basement. To do this, you will need to use a jackhammer or sledgehammer to break up the concrete and dig a pit. You will also need to create a hole in your basement wall to run the discharge pipe through.

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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