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Foundation, basement or crawlspace waterproofing / encapsulation pros in Dover

Avatar for Groundworks
Groundworks
106 Park Drive
4.39(
99
)
Approved Pro
Groundworks
106 Park Drive
4.39(
99
)
Approved Pro
Customers say: Super punctual
466 local quotes requested
28 years of experience

Groundworks employs patented solutions to target foundation, basement, concrete, and crawl space challenges at their source. Our customized repairs safeguard homes in Philidelphia, enhancing safety, appearance, and value.

"Great Job. Very professional."

Richard A on March 2025

Groundworks employs patented solutions to target foundation, basement, concrete, and crawl space challenges at their source. Our customized repairs safeguard homes in Philidelphia, enhancing safety, appearance, and value.

"Great Job. Very professional."

Richard A on March 2025


Avatar for '58 Foundations
'58 Foundations
1344 W Nursery Rd Ste A
3.75(
20
)
Approved Pro
'58 Foundations
1344 W Nursery Rd Ste A
3.75(
20
)
Approved Pro
67 years of experience
Free onsite estimate

For over 66 years, '58 Foundations & Waterproofing has provided the highest-quality basement waterproofing, crawl space encapsulation, foundation repair, and mold removal. We lead with a promise of Trusted Five-Star Service, which means the customer experience is at the center of everything we do. Since 1958, we have been steadfast in keeping this promise and upholding the values upon which '58 Foundations & Waterproofing was built: trust, teamwork, integrity, respect, and communication. From the initial call to job completion, our customers are met with knowledgeable, caring, and professional staff prepared to offer a five-star experience that is unmatched in the home repair industry. What’s more, you can enjoy the peace of mind that comes with our lifetime warranty and our industry-unique money-back guarantee!

"If you’re considering 58 Foundations, do yourself a favor and stop right now. I cannot, in good conscience, recommend this company to anyone. Their complete disregard for accountability is infuriating. At first, things appeared to go smoothly, but the illusion of competence quickly disintegrated when it came time for the building inspection. The city inspector requires a letter from the project engineer verifying that the work is safe, sound, and compliant with code. 58 Foundations flat-out refuses to provide this basic validation of their work. Why won’t they stand behind their project? Are they hiding shoddy, substandard work? As a homeowner, I’m now saddled with the mess of an open permit and no resolution in sight. This is unacceptable. If a company won’t back their work with a simple letter, what does that say about their integrity—or lack thereof? Didn't expect this kind of run around from a well established professional firm, save yourself the headache."

Warrick S on December 2024

For over 66 years, '58 Foundations & Waterproofing has provided the highest-quality basement waterproofing, crawl space encapsulation, foundation repair, and mold removal. We lead with a promise of Trusted Five-Star Service, which means the customer experience is at the center of everything we do. Since 1958, we have been steadfast in keeping this promise and upholding the values upon which '58 Foundations & Waterproofing was built: trust, teamwork, integrity, respect, and communication. From the initial call to job completion, our customers are met with knowledgeable, caring, and professional staff prepared to offer a five-star experience that is unmatched in the home repair industry. What’s more, you can enjoy the peace of mind that comes with our lifetime warranty and our industry-unique money-back guarantee!

"If you’re considering 58 Foundations, do yourself a favor and stop right now. I cannot, in good conscience, recommend this company to anyone. Their complete disregard for accountability is infuriating. At first, things appeared to go smoothly, but the illusion of competence quickly disintegrated when it came time for the building inspection. The city inspector requires a letter from the project engineer verifying that the work is safe, sound, and compliant with code. 58 Foundations flat-out refuses to provide this basic validation of their work. Why won’t they stand behind their project? Are they hiding shoddy, substandard work? As a homeowner, I’m now saddled with the mess of an open permit and no resolution in sight. This is unacceptable. If a company won’t back their work with a simple letter, what does that say about their integrity—or lack thereof? Didn't expect this kind of run around from a well established professional firm, save yourself the headache."

Warrick S on December 2024


Avatar for DryZone, LLC
DryZone, LLC
16507 Beach Hwy
3.88(
4
)
Approved Pro
DryZone, LLC
16507 Beach Hwy
3.88(
4
)
Approved Pro
10 local quotes requested
19 years of experience

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.

"They don't honor their work, and wont come back to fix the faulty system"

Homeowner on August 2020

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.

"They don't honor their work, and wont come back to fix the faulty system"

Homeowner on August 2020


Avatar for AVG Waterproofing
AVG Waterproofing
500 Apple Road
4.66(
16
)
Approved Pro
AVG Waterproofing
500 Apple Road
4.66(
16
)
Approved Pro
Customers say: Quality work
29 local quotes requested
10 years of experience

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.

"Great experience from the inspection of the issue, the estimate and the speed the job was scheduled and completed. Would (and already have) recommend to friends and clients (I'm a realtor). We had an engineer friend look at the solution Alex proposed for the job and he said this was the correct fix for the basement unlike a solution proposed my a different company. Thanks Alex!"

Leslie T on April 2025

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.

"Great experience from the inspection of the issue, the estimate and the speed the job was scheduled and completed. Would (and already have) recommend to friends and clients (I'm a realtor). We had an engineer friend look at the solution Alex proposed for the job and he said this was the correct fix for the basement unlike a solution proposed my a different company. Thanks Alex!"

Leslie T on April 2025


Avatar for JR Construction
JR Construction
22440 Pine Cone Drive
5.00(
5
)
Approved Pro
JR Construction
22440 Pine Cone Drive
5.00(
5
)
Approved Pro
108 local quotes requested
4 years of experience

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.

"We pruned a large group of Japanese pine trees and had a significant pile of branches and no vehicle large enough to move I found this company on Angi and the tree owner Bill came out and assessed the job and the cost. He was professional and easy to talk too. We decided to use their services and contracted them to remove that was completed yesterday Tuesday May 27. I recommend them heartily Before and after photos "

Matthew H on May 2025

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.

"We pruned a large group of Japanese pine trees and had a significant pile of branches and no vehicle large enough to move I found this company on Angi and the tree owner Bill came out and assessed the job and the cost. He was professional and easy to talk too. We decided to use their services and contracted them to remove that was completed yesterday Tuesday May 27. I recommend them heartily Before and after photos "

Matthew H on May 2025


Avatar for Basement Gurus, LLC
Basement Gurus, LLC
431 Rhawn Street
4.82(
137
)
Approved Pro
Basement Gurus, LLC
431 Rhawn Street
4.82(
137
)
Approved Pro
Super Service Award
Customers say: Quality work
900 local quotes requested
15 years of experience

Basement Gurus LLC, is a locally owned and operated company with over 20 years of experience. We specialize in professional waterproofing services. Our commitment is 100% guaranteed customer satisfaction on every project. Call us today, so that we can give you a free estimate and make your project come to life!

"Lucas was great to work with! He was knowledgeable, thorough, and provided a professionally written quote onsite. "

Dax A on May 2025

Basement Gurus LLC, is a locally owned and operated company with over 20 years of experience. We specialize in professional waterproofing services. Our commitment is 100% guaranteed customer satisfaction on every project. Call us today, so that we can give you a free estimate and make your project come to life!

"Lucas was great to work with! He was knowledgeable, thorough, and provided a professionally written quote onsite. "

Dax A on May 2025


Avatar for H&Y Contracting LLC
H&Y Contracting LLC
300 Delaware Ave Suite 210
4.89(
14
)
Approved Pro
H&Y Contracting LLC
300 Delaware Ave Suite 210
4.89(
14
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

H&Y Contracting LLC take great pride in our experience, expertise, quality and customer service that we provide to meet your 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 a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"Attention to detail, Caesar designed a gas fireplace and installed it. He went out of his way to satisfy. Communication was great. Canâ t say enough about this company!"

Mary Jane L on November 2024

H&Y Contracting LLC take great pride in our experience, expertise, quality and customer service that we provide to meet your 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 a professional manner. Our reputation is based on service, safety and quality, regardless of how large or small the job.

"Attention to detail, Caesar designed a gas fireplace and installed it. He went out of his way to satisfy. Communication was great. Canâ t say enough about this company!"

Mary Jane L on November 2024


Avatar for Quality 1st Basement Systems, Inc.
Quality 1st Basement Systems, Inc.
2092 East Old Philadelphia Road
4.87(
90
)
Approved Pro
Quality 1st Basement Systems, Inc.
2092 East Old Philadelphia Road
4.87(
90
)
Approved Pro
Customers say: Quick response
26 years of experience
Free onsite estimate

Quality 1st Basement Systems is your local, family owned contractor for Basement Waterproofing, Sump Pumps, Basement Finishing, Foundation Repair, Mold Remediation, Crack Repair, Radon Testing and Radon Mitigation, Egress Windows and Egress Stairwell, and Crawlspace Encapsulation too. 100% FINANCING AVAILABLE and free estimates. We have been in business for 25 years and have five star ratings with Google, Yelp, and the BBB. Winner of the 2021 BBB Torch Award for Market Place Ethics and finalist for the 2022 International BBB Torch award for Market Place Ethics. CONTACT US NOW BY CALLING 1-800-768-6745 OR EMAIL US AT info@BasementSystemsUSA.com

"Installed radon filter without any issues or hassle."

Jonathan M on May 2023

Quality 1st Basement Systems is your local, family owned contractor for Basement Waterproofing, Sump Pumps, Basement Finishing, Foundation Repair, Mold Remediation, Crack Repair, Radon Testing and Radon Mitigation, Egress Windows and Egress Stairwell, and Crawlspace Encapsulation too. 100% FINANCING AVAILABLE and free estimates. We have been in business for 25 years and have five star ratings with Google, Yelp, and the BBB. Winner of the 2021 BBB Torch Award for Market Place Ethics and finalist for the 2022 International BBB Torch award for Market Place Ethics. CONTACT US NOW BY CALLING 1-800-768-6745 OR EMAIL US AT info@BasementSystemsUSA.com

"Installed radon filter without any issues or hassle."

Jonathan M on May 2023


Avatar for Value Dry Waterproofing
Value Dry Waterproofing
1434 Odenton Rd
4.45(
276
)
Approved Pro
Value Dry Waterproofing
1434 Odenton Rd
4.45(
276
)
Approved Pro
Customers say: Super punctual
804 local quotes requested
22 years of experience

Value Dry is committed to never stop fighting the damaging effects of moisture and poor air quality in your home. We transform wet basements and musty crawl spaces into dry, healthy, useable space through basement waterproofing and crawl space encapsulation. We provide the best lifetime transferable warranty in the DC/Baltimore area. Our services include sump installation and replacement, battery backup sump pumps, foundation waterproofing, vapor barriers, humidity/ventilation control, outside stairwell drains, window well drains, egress windows, insulation, and foundation repair. We are conveniently located between the Baltimore and Washington, D.C. beltways and our service range covers Maryland, Virginia, Washington, D.C., Southern Delaware and the panhandle of West Virginia. Our entire team, from our call center staff to our inspectors and installers, is fully committed to maintaining the highest standards of customer service and protecting your biggest investment, your home. Our work is backed by a lifetime transferable warranty and a 24/7 service team. We are very proud of the reputation that we have built through online reviews, within our industry, and among our customers. Give us a call at (888) 768-2583 to schedule a free consultation or if you have any questions.

"They were expensive, but clearly the best product."

Victoria E on December 2024

Value Dry is committed to never stop fighting the damaging effects of moisture and poor air quality in your home. We transform wet basements and musty crawl spaces into dry, healthy, useable space through basement waterproofing and crawl space encapsulation. We provide the best lifetime transferable warranty in the DC/Baltimore area. Our services include sump installation and replacement, battery backup sump pumps, foundation waterproofing, vapor barriers, humidity/ventilation control, outside stairwell drains, window well drains, egress windows, insulation, and foundation repair. We are conveniently located between the Baltimore and Washington, D.C. beltways and our service range covers Maryland, Virginia, Washington, D.C., Southern Delaware and the panhandle of West Virginia. Our entire team, from our call center staff to our inspectors and installers, is fully committed to maintaining the highest standards of customer service and protecting your biggest investment, your home. Our work is backed by a lifetime transferable warranty and a 24/7 service team. We are very proud of the reputation that we have built through online reviews, within our industry, and among our customers. Give us a call at (888) 768-2583 to schedule a free consultation or if you have any questions.

"They were expensive, but clearly the best product."

Victoria E on December 2024


Avatar for Dry Tech Waterproofing Solutions
Dry Tech Waterproofing Solutions
536 N Trooper Rd
4.76(
29
)
Approved Pro
Dry Tech Waterproofing Solutions
536 N Trooper Rd
4.76(
29
)
Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
642 local quotes requested

We are a locally owned and operated basement waterproofing company with over 25 years experience. With over 10 years of servicing the tri-state area, we have many satisfied customers. In addition to our quality workmanship, our warranty is among the best in the industry! Call now for your FREE, no obligation, in home estimate.

"Great! Not going to lie, they are expensive. But they were quick, professional, and efficient. Completed the repairs and clean-up immaculately. Great job!"

Edward B on May 2023

We are a locally owned and operated basement waterproofing company with over 25 years experience. With over 10 years of servicing the tri-state area, we have many satisfied customers. In addition to our quality workmanship, our warranty is among the best in the industry! Call now for your FREE, no obligation, in home estimate.

"Great! Not going to lie, they are expensive. But they were quick, professional, and efficient. Completed the repairs and clean-up immaculately. Great job!"

Edward B on May 2023

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Showing 1-10 of 279

FAQs for foundation, basement or crawlspace waterproofing / encapsulation projects in Dover, DE

Cleaning your crawl space is a worthwhile investment for several important reasons. A properly maintained crawl space prevents structural damage by eliminating moisture that can deteriorate wood supports and metal components. It also significantly improves your home's indoor air quality by removing allergens like mold spores and pest droppings that can circulate through your living spaces. 

Additionally, a clean crawl space contributes to better energy efficiency by allowing proper insulation installation and reducing humidity levels that force your HVAC system to work harder.

Several warning signs indicate your crawl space needs professional attention. Look for musty odors throughout your home, unexplained increases in allergy symptoms, higher energy bills, visible pest activity, or moisture issues. 

Other indicators include sagging floors, warped wood, visible mold growth, standing water, or damaged insulation. If your crawl space hasn't been inspected in over a year, or if you've recently experienced flooding or severe weather, it's advisable to have professionals assess the space even without obvious symptoms.

Most crawl space cleaning projects take between one and three days to complete, depending on several factors. Simple debris removal in a small, relatively clean space might be finished in a single day. 

More involved projects that include mold remediation, water damage repair, or pest control require two to three days. For large crawl spaces or those with extensive contamination, the timeline might extend to a week, particularly if additional services like encapsulation are included in the project scope.

You can remain in your home during basic crawl space cleaning. However, if the project involves mold remediation or pest extermination with chemical treatments, temporary relocation might be recommended, especially for household members with respiratory conditions or chemical sensitivities. 

Professional cleaning companies use containment procedures to minimize the spread of dust and contaminants into living spaces, but some disruption is inevitable. Discuss your specific situation with your service provider to determine the best approach for your family's needs.

The Dover, DE homeowners’ guide to foundation, basement or crawlspace waterproofing / encapsulations
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