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    Average homeowner rating
  • Verified reviews icon41
    Verified foundation repairs reviews

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

Avatar for Century Masonry & Waterproofing
Century Masonry & Waterproofing
4.9(
64
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationFoundation Drainage - Install or Replace

Serving Flanders, NJ and surrounding areas

Approved

In business since 1996

Free estimates

Warranties offered

"Highly recommend Sean! He showed up on time, was very professional and repaired 2 leaking walls in my poured concrete foundation. I had tried several times with various products and the water just kept finding its way in. So frustrating! Even had another company come that said I needed the floor cut and a drain installed. They wanted almost $6000! Sean fixed the issue in a few hours. Left the place spotless and the basement is now totally bone dry. Also guarantees his work and offered to return at no charge if the issue returned."
The beginning
WaterGuard XL
Final Product
CleanSpace around support pillars
CleanSpace on the floor

+26

Response time1 day
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Joseph & Sons Construction, LLC
Joseph & Sons Construction, LLC
4.9(
168
)
Foundation Drainage - Install or ReplaceFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Flanders, NJ and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"Very happy with my experience with Joseph and Sons Construction. Was looking for a local contractor to handle several small/medium size projects around the home. Reviews were good so went with them. Could not be more pleased with the quality of work and responsiveness from Angelo. By the time it was finished, he felt like a neighbor Iâ ve known for years. He answered all my questions, and all work was completed exactly as described. The work included new brick and stone patio, foundation repair, porch repair, replacement of basement windows. Also gave many good suggestions for improvements I could do myself. I would definitely recommend them for any projects, big or small, around your home."
custom luxury home
custom luxury home
remodeled spacious basement
Renovated backyard
renovated walkway and driveway

+1

Response time1 day
1 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for American A-1 Waterproofing
American A-1 Waterproofing
4.7(
148
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - RaiseConcrete Foundation - Repair+1 more

Serving Flanders, NJ and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"I can't say enough good things about American A-1 Waterproofing. Roland and his team were amazing. I had originally opted to go with another contractor to install a French drain and sump pump, but after exposing the foundation, they got spooked and said they wouldn't perform the work. Roland came by and assured me his team could get the work done and they did not disappoint. Through the initial estimate, permitting, construction and final sign off, Roland and his team were communicative, prompt, clean, and extremely professional. It was an absolute pleasure to work with them!"
Picture 1
Picture 2
Picture 3
Picture 4
Picture 5

+14

Response time3 days
Response rate100%
3 neighbors recently requested a quote
Avatar for Groundworks
Groundworks
4.6(
308
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - RepairConcrete Foundation - Raise+1 more

Serving Flanders, NJ and surrounding areas

Approved (Corporate)

In business since 1999

Free estimates

Emergency services offered

"I had a completely new French Drain system installed in one day! Professional courteous service from inspection thru completion. All aspects of the work to be performed were clearly explained along with justification and guaranteed satisfaction. I highly recommend Select Basement Waterproofing and commend Jason on his inspection and his team on a job well done! A pleasure to do business with them!"
Basement
Basement
Basement
Basement
Foundation

+15

Response time1 day
66 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Pro Rise Construction LLC
Pro Rise Construction LLC
5.0(
91
)
Concrete Foundation - Repair

Serving Flanders, NJ and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"We contacted Pro Rise Construction LLC for stucco repair and driveway paving, and the experience was excellent from start to finish. Their team arrived on time every day and treated our property with respect. The driveway came out smooth and durable, and the stucco work blended perfectly with the original exterior. Vinny and Nitin are true professionals who care about customer satisfaction."
Patio
Steps
Steps
Drive way pavers
78 neighbors recently requested a quote
Avatar for WEATHER-TITE WATERPROOFING INC.
WEATHER-TITE WATERPROOFING INC.
4.8(
100
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationFoundation Drainage - Install or Replace

Serving Flanders, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1992

Free estimates

Warranties offered

"Those of us in Jersey can attest that the rain has been super problematic this year. After ten years in my home, my basement was flooding consistently. I contacted Bob at Westher Tite as well as 2 or 3 other companies for emergency diagnosis and repair. Bob was the first to reply, very informative and had the issue fixed within the week! He and his crew were punctual and professional. Once the work was completed, my basement was spotless. No signs of moisture or dust anywhere! Bob was helpful in explaining everything. Pricing was fair not the most nor the least expensive estimate. The VALUE, however was spot on! The rainfall hasn’t let up a bit and not a drop of water in my basement."
Response time12 hrs
22 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for One-Way GC, LLC
One-Way GC, LLC
4.6(
78
)
Poured Concrete Wall - Repair

Serving Flanders, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Free estimates

Emergency services offered

"Great job! Showed up on time, gave reasonable quotes and excellent craftsmanship. I had several projects done including brick pointing, sidewalk repair and chimney repair. I highly recommend James K"
New Roof
New Roof
New Roof
New Roof
New Roof

+65

Response time6 hrs
Response rate96%
46 neighbors recently requested a quote
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Foundation Repair FAQs, answered by experts

It’s crucial to hire a foundation company that’s professional, experienced, and reliable, starting by choosing local experts with at least five to ten years of experience with your type of project. Local foundation companies will understand the soil and weather conditions in your area and can carry out the best solution based on your property characteristics. You should ask for a list of customer references, read through online reviews, and check for customer complaints and unresolved issues filed with the Better Business Bureau (BBB) before hiring.

Underpinning is a specific type of foundation repair where a specialist installs deep piers under a foundation to provide additional support. This method is often used when the soil beneath the foundation can no longer evenly support the structure. Foundation repair is an umbrella term that includes many methods. Besides underpinning, other common repairs include foundation crack repair, waterproofing, cosmetic repairs, and concrete block wall stabilization. Often, underpinning is accompanied by other work to address the root cause of the foundation issue, such as regrading the yard to ensure water drains away from the house.

Foundation settling is normal and expected if just a small amount of settlement occurs within a year or so after construction. This usually results in hairline cracks in the foundation, which aren’t typically a problem. If settlement occurs years after construction, unevenly under your home, or results in signs of structural damage, then it could be very serious. Foundation stabilization and drainage system installation to fix unnatural settlement can cost tens of thousands of dollars and compromise the structural integrity of your entire home.

You can patch minor cracks and damage yourself using concrete fillers or mortar. Larger damage may require full replacement of affected slabs. However, water damage to your concrete will never disappear unless you address the root cause causing the water to cumulate. To prevent future damage, you can also waterproof your concrete.

Homeowners insurance doesn’t usually cover a sinking foundation. While insurance will cover some kinds of foundation damage, coverage is usually limited to damage from natural disasters, fire, or impact. Foundation sinking is rarely covered by insurance, so it’s a good idea to make repairs early on to avoid costly problems in the future.

The Flanders, NJ homeowners’ guide to foundation repairs

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