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  • Average homeowner rating star icon4.5
    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
153 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
76 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
24 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%
42 neighbors recently requested a quote
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Foundation Repair FAQs, answered by experts

It is possible for a slab leak to cause a sinkhole, but it would have to be a particularly serious leak. A slab leak causes the land under your home to erode and if there is enough movement depressions will form in the ground, potentially causing a sinkhole.

Yes, you can fix a block foundation. It’s important to address the issue immediately and have a foundation repair professional understand the severity of the issue and determine the best course of action. If the wall collapses before the foundation is repaired, then you’ll have to reassess your entire foundation.

It depends on the bank and the extent of the issue. Some banks will lend against homes with minor foundation damage, but most won’t if the issue is structural since the home acts as collateral for the mortgage. Banks that offer renovation loans might still finance a home with structural problems. More minor issues like settling cracks and intermittent problems with humidity are unlikely to stop a bank from financing.

Signs of structural damage include foundation cracks, roof leaks, bouncy floors, crumbling concrete, and cracked or leaning chimneys. Structural damage can make itself apparent in various ways, and sometimes, there may not be obvious signs. Inspect your foundation and roof annually to stay ahead of potentially serious structural problems. 

Foundation repairs cost about $5,000, on average. Typically, prices range from $2,200 to $7,800, depending on the type and extent of repairs needed. Cost factors include foundation type, home size, soil stability, accessibility, and the ultimate cause of the problem and what methods and materials are required to fix it.

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.