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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon15
    Verified foundation repairs reviews

Top-Rated Foundation repair specialists in Dover - Updated Nov 2026

Avatar for Quality 1st Basement Systems, Inc.
Quality 1st Basement Systems, Inc.
4.7(
113
)
Concrete Foundation - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Dover, DE and surrounding areas

Approved

In business since 1999

Free estimates

Warranties offered

"Love this company and the work they do! They repaired a leaking crack in our basement. Work was done quickly and efficiently and we haven't had any issues since! Crew was great! They answered all our questions and gave us peace of mind. Definitely a company you can trust!! THANK YOU BASEMENT SYSTEMS USA!"
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
Avatar for Groundworks
Groundworks
4.2(
538
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationPoured Concrete Wall - RepairConcrete Foundation - Raise+1 more

Serving Dover, DE and surrounding areas

Approved (Corporate)

In business since 1997

Free estimates

Warranties offered

"IT WENT VERY WELL. BQ SYSTEMS RESPONDED QUICKLY TO MY REQUEST ( HAD A NARROW TIME FRAME: HAD TO GET IT FIXED SO I COULD SELL MY HOUSE.) AND THE FOLKS AT BQ SYS. DID EVERYTHING THEY COULD TO HELP ME. THE REPAIR TO THE FOUNDATION WALL WAS COMPLETED IN LESS THAN ONE DAY AT A FAIR PRICE. I AND THE NEW OWNERS ARE VERY HAPPY WITH THE REPAIR!"
Protect Your Crawl Space
Protect Your Crawl Space
Protect Your Crawl Space
Correct Your Smelly Crawl Space
Protect Your Crawl Space

+16

19 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Basement Waterproofing Nationwide Inc
Basement Waterproofing Nationwide Inc
4.6(
188
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - RaiseConcrete Foundation - Repair+1 more

Serving Dover, DE and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"I was having some issues with water coming into the basement through the foundation and walls during rainy weather. Not flooding, or even shop vac-able volumes, just enough to be annoying and require mopping. Dominic and his crew were here today to install an under-floor drainage system and a new sump pump. I was dreading the demo (I have a concrete floor) and the mess involved, but these guys came prepared for everything! They used dust abatement measures to protect all my basement-stored items, and they removed and hauled all the debris away when finished with the excavation. What really impressed me was the concrete restoration upon completion. I've previously had a sewer line replaced through the basement floor, and the contractor really "botched" the floor repair. I can't describe how different this experience was! The concrete installed today is immaculate! Dominic takes pride in his work and with good reason! The new concrete is perfect! I am thrilled!"
Additional Photos
Response time2 days
12 neighbors recently requested a quote
Recommended by89%of homeowners
Basement Waterproofing Specialists
4.0(
597
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - RepairPoured Concrete Wall - Repair

Serving Dover, DE and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"We had 2 foundation cracks running from corner of basement window to the floor. Their recommendation was not to just fill in the cracks, as others suggested, but to also reinforce the structural integrity of the foundation with a solid steel plate bolted over the repaired crack. That approach made much more sense to me than the other recommendations I'd received. I hired them and they were onsite within 2 days and completed all work in a single day. We've since had excessive rain and the repairs have held up and the basement is still dry."
Foundation Repair
 Before and After Stone Work
 Mirra Drain
 Mold Remediation
 Clean Work Areas

+67

Response time11 hrs
289 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Dry Tech Waterproofing Solutions
Dry Tech Waterproofing Solutions
4.4(
32
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationFoundation Drainage - Install or Replace

Serving Dover, DE and surrounding areas

Approved (Corporate)

In business since 2007

Free estimates

Emergency services offered

"This company did a first class job solving a basement foundation water infiltration problem in our commercial office building in Upper Bucks County, PA. A project manager came out to assess our situation; he came up with a proposed solution on the spot, provided us with a written proposal and sample photos of other similar work they had done. The work required excavating a small portion of the foundation on the exterior and filling a crack in the foundation wall down to the footers. The crew came out as scheduled and completed the job in a single day as predicted. Some follow up tweaks were needed, and I'm happy to say that the customer service team and follow up crew responded promptly and made some necessary adjustments to button up the job as promised. This is a first class operation and I do not hesitate to recommend this outfit to other colleagues and property owners needing this service."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+33

Response time7 hrs
Response rate100%
21 neighbors recently requested a quote
Avatar for '58 Foundations
'58 Foundations
3.6(
45
)
Concrete Foundation - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Dover, DE and surrounding areas

Approved

In business since 1958

Free estimates

Warranties offered

"We had a foundation crack repaired and drainage pipes and sump pump installed. I anticipated the work to be highly disruptive and messy but it was done in a day (double crew) and very clean afterwards. After two months the basement is noticeably drier. Very pleased with the results!"
Basement Waterproofing
Basement Waterproofing
Basement Waterproofing
Basement Waterproofing
Basement Waterproofing

+10

Response time2 days
1 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for JR Construction
JR Construction
4.7(
13
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationFoundation Drainage - Install or ReplaceConcrete Foundation - Repair

Serving Dover, 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
23 neighbors recently requested a quote
Avatar for BML Concrete Designs
BML Concrete Designs
4.5(
8
)
Poured Concrete Wall - Repair

Serving Dover, DE and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"Quoted me on a Sunday, started that Tuesday, finished and cleaned up on Friday. They worked hard and did an excellent job fixing my foundation and made everything look like new again. Cleaned up after themselves, including power washing the dirt off my driveway and sidewalk. Their prices were more than fair, and they responded quickly to my questions. Would definitely hire again."
Concrete
More concrete
Concrete
More concrete
Concrete

+59

Response time4 days
4 neighbors recently requested a quote
Recommended by100%of homeowners
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Foundation Repair FAQs, answered by experts

There are a few ways to reinforce a pier and beam foundation, including installing additional piers and beams for added support and performing underpinning, which redistributes the weight of your home further down into the ground where frost and soil expansion don’t pose a threat to the foundation. The best option for reinforcement varies based on your particular home and the soil conditions beneath it.

No, hairline cracks in concrete are generally not a problem as they do not impact the strength and longevity of the concrete. Generally, cracks less than 0.3 millimeter wide don’t impact the structure. Hairline cracks can grow over time and weaken the structure, such as in a home foundation. Some hairline cracks can also cause leaks in a foundation. It’s important to watch the cracks to see if they grow. Contact a concrete contractor if you notice cracks exceeding 0.3 millimeter wide.

Cracked tiles can mean foundation problems. Fortunately, most of the time, cracked tiles happen as a result of accidental damage. It is important to determine the cause of cracking to rule out underlying foundation issues. If your tiles were not damaged due to dropped items, heavy loads, poor installation, or inferior tile quality, and the cracks are spreading throughout your flooring and not limited to just one area, you may be dealing with foundation problems. These can include drainage problems and even foundation failure, so it is vital to call a licensed contractor to assess the issue and ensure your foundation is safe.

You'll find a slurry of natural and synthetic polymers, rubbers, epoxies, and resins used to bond old concrete to new concrete. The right bonding agent depends on the method of concrete pouring you choose and whether you're adhering concrete over concrete or concrete over sand and gravel. Some concrete resurfacing mixtures contain bonding chemicals as well.

Yes, you can fill cracks in concrete if you’re a somewhat handy homeowner. It’s important to know which concrete patching method to use, as small cracks require different approaches than large ones. It might seem challenging to determine which product to use and the tools necessary for the project, but with a bit of background, homeowners can restore their cracked concrete easily.

The Dover, DE homeowners’ guide to foundation repairs

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