Researched rankings in 38 cities across the United States and Canada, each with a last-reviewed date.

TenBestFindThe best, verified
Add Your Business

Waterproofing · Newark, NJLast reviewed October 2026

5 Best Waterproofing Companies in Newark, NJ (2026)

TenBestFind ranks 5 waterproofing contractors in Newark, NJ. Each company was checked against the criteria set out under How we chose. Lists name up to ten companies, and this one stops at 5 because only 5 met them. The list was last reviewed on October 21, 2026.

Blue Umbrella Waterproofing leads our Newark list with 5.0 stars from 544 Google reviews, followed by A-1 Basement Solutions at 4.9 from 331. Five North Jersey firms cleared our bar of 4.5 stars, 50 reviews and a real staffed office, and all of them work from the suburbs around Newark rather than from the city itself.

5 companies reviewed5 rankedHow We Rank

The Ranking

Our top 5 waterproofing contractors in Newark

Newark and the surrounding Essex County towns have older brick and block houses, many with basements that sit below the water table in wet seasons. The usual fixes are interior French drains with a sump pump, exterior membranes and window well repairs. New Jersey requires home improvement contractors to register with the Division of Consumer Affairs, and you can check any registration number at njconsumeraffairs.gov before you sign.

Showing 5 of 5
  1. 01

    Best for drainage and sump installs with a transferable warranty

    Blue Umbrella Waterproofing

    5.0(552 Google reviews)
    Best forBasement drainage and sump pump installs backed by a transferable warranty
    In businessNot listed
    WarrantyLifetime transferable warranty: free replacement of material and labor in areas waterproofed with the system, valid while the system is maintained, unmodified and unblocked; transfers to a new owner on sale.
    EmergencyNot listed

    Why we picked them

    5.0 from 544 Google reviews, owner-led and not a franchise, with a lifetime transferable warranty and Newark named as a service town.

    What we like

    • Family-owned, not a franchise, founded by Steve Karlik
    • Reviewers praise clean crews and clear explanations
    • Lifetime transferable warranty on its waterproofing systems

    Things to consider

    • No emergency service is advertised, and the warranty depends on maintenance.
    Key details
    Best for
    Basement drainage and sump pump installs backed by a transferable warranty
    Service area
    Newark
    Address
    29 Alden St Ste LL1B, Cranford, NJ
    Warranty
    Lifetime transferable warranty: free replacement of material and labor in areas waterproofed with the system, valid while the system is maintained, unmodified and unblocked; transfers to a new owner on sale.
    Financing
    Available
    Credentials
    NJ Home Improvement Contractor registration
  2. 02

    Best for French drains and sump systems with a transferable guarantee

    A-1 Basement Solutions

    4.9(331 Google reviews)
    Best forFrench drains and sump systems with a transferable guarantee
    In businessNot listed
    WarrantyTransferable life-of-the-house guarantee, as stated on the company website. Ask for the written terms before signing.
    EmergencyNot listed

    Why we picked them

    4.9 from 331 Google reviews, with employee-only crews and a transferable guarantee stated on its site.

    What we like

    • Site says every job is done by W2 employees, never subcontractors
    • Transferable life-of-the-house guarantee
    • Reviewers praise Steve's low-pressure, honest advice

    Things to consider

    • The office is in Garwood, and the website never names Newark.
    Key details
    Best for
    French drains and sump systems with a transferable guarantee
    Service area
    Newark
    Address
    26 North Ave, Garwood, NJ
    Warranty
    Transferable life-of-the-house guarantee, as stated on the company website. Ask for the written terms before signing.
    Financing
    Available
    Credentials
    NJ Home Improvement Contractor registration
  3. 03

    Best for interior and exterior French drains with an owner-led crew

    ARD Waterproofing

    5.0(233 Google reviews)
    Best forInterior and exterior French drains with an owner-led crew
    In business11 years
    Warranty100% lifetime warranty on foundation waterproofing work, stated by the company as transferable to a new owner when the home is sold. Ask for the written terms.
    EmergencyAvailable

    Why we picked them

    A perfect 5.0 from 224 Google reviews, with an owner-on-site model that reviewers confirm.

    What we like

    • Owner on site for every job, per its own site
    • Lifetime warranty stated as transferable on sale
    • Reviewers praise clean, fast crews and clear communication

    Things to consider

    • Based about 12 miles away in West Caldwell, and Newark is not named among its towns.
    Key details
    Best for
    Interior and exterior French drains with an owner-led crew
    Service area
    Newark
    Address
    98 Smull Ave, West Caldwell, NJ
    Years in business
    11 years
    Warranty
    100% lifetime warranty on foundation waterproofing work, stated by the company as transferable to a new owner when the home is sold. Ask for the written terms.
    Emergency service
    Available
    Financing
    Available
    Credentials
    New Jersey contractor registration 13VH12460700
  4. 04

    Best for Essex County homeowners who want a transferable warranty

    All County Waterproofing

    4.8(166 Google reviews)
    Best forEssex County homeowners who want a transferable warranty and a two-day install
    In businessNot listed
    WarrantyTwo-owner warranty that transfers to the next owner at no extra cost, covering sub-solid walls, the wall cove and the full perimeter against water penetration on basement waterproofing.
    EmergencyNot listed

    Why we picked them

    4.8 from 166 Google reviews, plus a no-cost transferable two-owner warranty.

    What we like

    • Two-owner warranty transfers at no cost
    • Owner reports restoring more than 300 homes after Hurricane Sandy
    • Reviewers praise covered belongings and one-to-two-day installs

    Things to consider

    • Mountainside base with no Newark office, weekday-only hours and no stated emergency line.
    Key details
    Best for
    Essex County homeowners who want a transferable warranty and a two-day install
    Service area
    Newark
    Address
    1429 US-22, Mountainside, NJ
    Warranty
    Two-owner warranty that transfers to the next owner at no extra cost, covering sub-solid walls, the wall cove and the full perimeter against water penetration on basement waterproofing.
    Financing
    Available
    Credentials
    NJ Home Improvement Contractor registration
  5. 05

    Best for wet basements, crawl spaces and yard drainage

    American A-1 Waterproofing

    4.8(98 Google reviews)
    Best forWet basements, crawl spaces and yard drainage across Essex County
    In business36 years
    Warranty25 year transferable warranty against water seepage, excluding prolonged power outages and natural disasters.
    EmergencyNot listed

    Why we picked them

    4.8 from 97 Google reviews, operating since 1990 and offering a 25 year transferable warranty.

    What we like

    • 25 year transferable seepage warranty
    • Reviewers praise clean work areas and fast replies
    • Does yard and downspout drainage as well as basements

    Things to consider

    • Based in Haledon, about 15 miles from Newark, and the site states no financing or emergency service.
    Key details
    Best for
    Wet basements, crawl spaces and yard drainage across Essex County
    Service area
    Newark
    Address
    198 Belmont Ave, Haledon, NJ
    Years in business
    36 years
    Warranty
    25 year transferable warranty against water seepage, excluding prolonged power outages and natural disasters.
    Credentials
    NJ Home Improvement Contractor registration

Side by Side

Compare the top waterproofing contractors in Newark

Ranking position reflects our editorial review, not customer ratings.

Editorial comparison of the 5 ranked companies. Customer ratings, where shown, come from the source named on each company profile.
RankCompanyBest forKey servicesService areaGoogle ratingEmergencyProfile
01Blue Umbrella WaterproofingBasement drainage and sump pump installs backed by a transferable warrantyNewark5.0(552)Not listedView
02A-1 Basement SolutionsFrench drains and sump systems with a transferable guaranteeNewark4.9(331)Not listedView
03ARD WaterproofingInterior and exterior French drains with an owner-led crewNewark5.0(233)YesView
04All County WaterproofingEssex County homeowners who want a transferable warranty and a two-day installNewark4.8(166)Not listedView
05American A-1 WaterproofingWet basements, crawl spaces and yard drainage across Essex CountyNewark4.8(98)Not listedView

Coverage

Waterproofing companies serving Newark and nearby areas

Most companies in this ranking work across New Jersey and the surrounding suburbs. Coverage and travel fees vary, so confirm your address is inside the service area before scheduling.

  • Newark

Service coverage across Newark. Individual company areas are listed on each profile.

Methodology

How we chose the best waterproofing contractors in Newark

Companies are listed in the order Google returned them for basement waterproofing searches in Newark on October 21, 2026. Each had at least 4.5 stars, 50 Google reviews, an operating status, a working website, a staffed street address and Essex County or Newark named as a service area on its own site. Every listed firm is based in a suburb in Union, Essex or Passaic County, and each listing gives the base and approximate distance. Firms under 50 reviews or 30 miles or more from Newark were left out. Only five firms qualified, so the list has five entries rather than ten.

Read our full ranking methodology
Evaluated5
Ranked5

Hiring

How to choose a waterproofing contractor in Newark

  1. Verify insurance and credentials

    Ask for a current certificate of insurance and confirm registration or licensing with the authority that issues it, not with the company.

  2. Ask for a written estimate

    Scope, materials, removal, disposal and who pulls the permit should all be named on the page rather than agreed on the doorstep.

  3. Compare multiple quotes

    Two or three bids on the same scope. A number far below the others usually means something has been left out of it.

  4. Understand the warranty

    Separate the manufacturer's warranty on materials from the company's own warranty on the work, and get both in writing.

  5. Ask who performs the work

    Find out whether the crew are employees or subcontractors, and who supervises them on the day.

  6. Check recent local projects

    Ask for addresses or photographs of comparable jobs finished nearby in the last year or two.

  7. Avoid high-pressure sales

    A discount that expires today, or a knock on the door after a storm, is a reason to slow down rather than sign.

  8. Get everything in writing

    Change orders, timeline and payment schedule included, before the first payment changes hands.

Questions to ask before hiring

0 of 10 asked

Red flags

  • No verifiable local business address or registration
  • Pressure to sign on the first visit
  • A demand for full payment up front
  • An offer to cover or waive your insurance deductible
  • Refusal to put warranty terms in writing
  • A quote that will not itemize scope

Keep Going

Related home services in Newark

FAQ

Waterproofing companies in Newark FAQs

Do waterproofing contractors need to be registered in New Jersey?

Yes. Home improvement contractors in New Jersey must register with the Division of Consumer Affairs, and you can check any registration number at njconsumeraffairs.gov. New Jersey has no waterproofing-specific licence, so also ask for proof of liability insurance and workers' compensation before work begins.

How much does basement waterproofing cost in Newark, NJ?

None of these companies publishes a fixed price, because cost depends on the length of the foundation, the method and access. Interior drain and sump systems are the most common fix in Essex County. Get at least two written, itemized quotes, and ask whether the warranty transfers to the next owner, which matters when you sell.

Why are there no Newark-based companies on this list?

Every firm that met our bar of 4.5 stars, 50 Google reviews and a staffed office is based in a suburb in Union, Essex or Passaic County. Newark's one nearby result, Rad Basement Water Control, had 36 reviews when we checked. Each listing states the base and the approximate distance so you can judge travel and response time.

Editorial Record

About this ranking

Originally published
October 2026
Last reviewed
October 2026
Companies evaluated
5

Need a waterproofing contractor in Newark?

Or compare the Newark waterproofing contractors again