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Products & Services
Mold Services
Mold Remediation
Dust Mites Control
Mold Spores
Mold Removal And Cleanup
Dry Rot & Brown Rot

Basement Repair Services & Products
WaterGuard Interior System
DryTrak Drainage Channel
TrenchDrain Drain Grate
IceGuard Discharge Line
FlexiSpan Wall Crack Repair
Polyurethane Crack Sealing
WellDuct Window Drainage
BrightWall Waterproof Panels
ThermalDry Wall Barrier
Basement To Beautiful Pre-finishing Wall Insulation Panels
Drain Tile Installation
SuperSump Pump System
TripleSafe Pumping System
UltraSump Battery Back Up
Sanidry Dehumidifier

Crawl Space Repair Services & Products
CleanSpace Encapsulation Vapor Barriers And Liners
Turtl Access Hatch
EverLast Crawl Space Doors
Sanidry Csb Dehumidifier
SmartDrain Water Drainage
SilverGlo Wall Insulation
TerraBlock Floor Insulation
SmartSump Sump Pump
Crawl-o-Sphere Crawl Space Fan
WallCap Block Wall Sealer
SmartVent Flood Vents

Foundation Repair Services & Products
Push Pier Underpinning For Settlement, Foundation Leveling, Sinking Foundation Repair
Geo-lock Wall Anchors
Geo-lock Helical Anchors
PowerBrace Bowed Wall Repair
CarbonArmor Fiber Wall Repair
SmartJack Crawl Space Support
Slab Pier Repair
PolyLevel Concrete Lifting
EZ Post Deck Repair
Shotcrete Wall Restoration

Finishing / Remodeling
Everlast Wall Panels
Insulated Wall Panels
Premier And Linen Ceiling Tiles: No-sag Warranty
Thermal Dry Floor Tiles
Millcreek Faux Wood Flooring
Sunhouse Window Wells
Everlast Window Replacement
Rockwell Egress Window

Before and After Pictures from Dunellen
Basement Flooring Tiles Installed in Dunellen, NJ

Basement Flooring Tiles Installed in Dunellen, NJ

Before After
Basement Flooring Tiles Installed in Dunellen, NJ Basement Flooring Tiles Installed in Dunellen, NJ

This homeowner had water coming into his finished basement so they wanted a professional waterproofing and finishing contractor to solve their problem. He contacted Quality 1st Basement Systems to waterproof the basement and help him refinish the basement space. EverLast basement wall panels were installed on the walls to insulate and protect the basement from water seepage. ThermalDry basement floor tiles were also installed which will elevate the temperature of this basement and are totally waterproof making them the best fit for this home.

Concrete Raised Efficiently in Somerset County, NJ

Concrete Raised Efficiently in Somerset County, NJ

Before After
Concrete Raised Efficiently in Somerset County, NJ Concrete Raised Efficiently in Somerset County, NJ

Quality 1st Basement Systems lifted this sinking concrete in Somerset County with ease. The installation team injected PolyLevel underneath the slab. PolyLevel expands and lifts sinking slabs back into a level position, preventing trip hazards. This is a much better method than mudjacking, which is expensive and messy!

Lifting Concrete With PolyLevel in Somerset County, NJ

Lifting Concrete With PolyLevel in Somerset County, NJ

Before After
Lifting Concrete With PolyLevel in Somerset County, NJ Lifting Concrete With PolyLevel in Somerset County, NJ

Quality 1st Basement Systems injected an expandable foam called PolyLevel underneath this sinking concrete slab. The foam filled the void underneath the concrete, pushing it back up and supporting it. Now this sidewalk in Somerset county is even and looks much better.

Company Awards
NJ Niz Best Places to Work 2021
Quality 1st Basement Systems is proud to have been named one of the 2021 Best Places to Work by NJ... [Read more]
NJ Biz Best Places To Work 2019
Quality 1st Basements is proud to have been named one of the 2019 Best Places to Work by NJ Biz!... [Read more]
2017 Angie's List Super Service Award
Quality 1st Basements Earns Esteemed 2017 Angie’s List Super Service Award Award reflects company’s consistently high level of customer service Cliffwood,... [Read more]
More Awards

Dunellen's trusted Basement Waterproofing, Crawl Space and Foundation Repair Contractor

Super Sump and WaterGuard alleviated 12 years of worry. Fantastic job and very successful operation....
Happy Customers Surrounding Dunellen, NJ
Work Requests

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Reviews From Dunellen
Testimonials From Dunellen
Dane helped me and was great...
Testimonial by Michael H. from Dunellen, NJ

Dunellen's Basement, Crawl Space & Foundation Contractor

For over 25 years, Quality 1st Basement Systems has been the trusted basement & foundation company of Dunellen. Our high quality work and exclusive access to over 28 patented products set us apart in the home improvement industry. When working on basements, crawl spaces and foundations we are the safe choice for your home.

Basement Waterproofing & Crawl Space Repair

Basements and crawl spaces consistently have issues with water, mold and rot. To prevent these problems from occurring in the future we install a patented interior drainage system. Water and moisture that enters the basement is captured, controlled and safely removed via the basement drain before you ever notice it. The drainage system also works as part of crawl space encapsulation. 

We Provide:
  • Basement Waterproofing
  • Crawl Space Encapsulation
  • Exclusive, Patented Products
  • Humidity Control
  • Egress Windows
You Receive:
  • Permanently Dry Basement
  • Clean Protected Crawlspace
  • Protection against Mold
  • Improved Home Value
  • Less Leaks & Better Energy Efficiency

We also fix basement leaks with permanent basement leak repair. With our system in place there is no need to fear basement flooding. We want your basement to be safe for years so our work comes with a transferable lifetime dry-basement warranty. 

Foundation Repair & Concrete Leveling

Whatever the issue we are the trusted foundation repair contractor. Our foundation repair experts will visit your home, identify the issue and recommend the right solution. We provide permanent foundation repairs using non-invasive methods. There is no need to tear up your entire yard to fix the foundation.

Repairs for:
  • Wall Cracks
  • Bowing Walls
  • Uneven Floors
  • Settling Foundations
  • Uneven Concrete Slabs       
We Use: 
  • Wall Anchors
  • EverBrace® Wall Repair System
  • Foundation & Slab Piers
  • Crawl Space Jack Posts
  • PolyLEVEL 

Along with general foundation problems we also fix sunken concrete slabs using PolyLEVEL. PolyLEVEL is an expansive polyurethane foam that fills in the gaps beneath the sunken concrete and lifts it back up to a level position. It also does not erode or wash away. If you are looking for the right foundation repair company, you found it. Let's get started. 

Gutter Installation & Gutter Guards in Dunellen, NJ

If your gutters clog regularly, consider getting a new gutter system installed by Quality 1st Basement Systems. We offer seamless gutters, gutter guards, and replacement gutter systems that are guaranteed to never clog or pull away from your home. Schedule your free estimate on any of our gutter services in Dunellen and nearby!

Quality 1st Basement Systems is proud to offer Gutter Shutter, a superior gutter system designed to last for years. Having an effective gutter system in place will safely guide water away from your home and prevent potential damage to your foundation, erosion of soil, roof leaks, and more.

Gutter Shutter Features:

  • Guaranteed to never clog, sag, or pull away from your home
  • Eliminates the need for homeowners to climb dangerous ladders to clean out their gutters
  • Constructed with premium-grade aluminum that won't flex under heavy loads
  • Wide mouth outlets, double-the-size downspouts, and more effective gutter extensions
  • 6" gutter size that carries 20% more water than standard 5" gutters
  • Exclusive high-back design with gutter trough to prevent water from entering behind your gutters
  • Available in a variety of colors to complement your home

Ready to replace your damaged, leaky gutters? We offer all-in-one gutter systems, downspouts, downspout extensions, and more to keep your home protected. Give Quality 1st Basement Systems a call at 1-844-268-0860 or fill out the provided form to schedule your free gutter installation quote! We proudly serve homeowners in Dunellen, NJ and the surrounding areas.

Services we offer in Dunellen:

  • Wet/flooded basement waterproofing solutions.
  • Lifetime warranty on all perimeter waterproofing systems.
  • Foundation and structural repair solutions.
  • 25-year warranty against manufacturing defects on foundation products.
  • Crawl space sealing with CleanSpace vapor barrier.
  • Guaranteed, patented gutter products
  • 25-year warranty on crawl space encapsulation systems.
  • Financing Available
  • FREE written estimates and inspections, and fast installation
Case Studies From Dunellen
A homeowner in Dunellen, New Jersey noticed their basement had flooded. If this goes without a solution, a wet basement could cause many negative...
A Dunellen, NJ homeowner had water in his basement and high air moisture in the house. Upon inspection, Quality 1st Basement Systems found water...
Job Stories From Dunellen, NJ
Pool Patio Repair in Green Brook, NJ

No one wants tripping hazards around their pool in the summer! That's why it's important to repair these issues before they get worse! This homeowner in Green Brook, New Jersey noticed their pool patio was sinking and settling. This can occur when concrete is poured over poorly backfilled soil. Over time, this soil settles and creates voids underneath, causing it to shift. 

The homeowner did not want this to go without a solution, so they searched online and came across Quality 1st Basement Systems. They gave us a call and our customer care representative booked them a free estimate appointment with our System Design Specialist, Dylan McDonald. A few days later, Dylan provided a thorough inspection and suggested they use polyurethane foam to bring the concrete to a lifted position. 

Our foreman Juan arrived at the home and began the process of using our PolyLevel Injections. This is done by drilling tiny holes into the concrete and injecting the foam underneath the voids. Doing this will allow the concrete to be raised and eliminate tripping hazards. This process is repeated until the slab is filled and lifted. Within 20 minutes, our crew did a final clean up and the pool patio was leveled. 

When the job was complete, the homeowner was very satisfied with the results and the professionalism they witnessed throughout their experience. Now, they can safely walk on their pool patio without the concern of tripping hazards! 

Work Requests From Dunellen, NJ
Project Location: Dunellen, NJ
Basement possible leak
Project Location: Dunellen, NJ
The walls on my 2 family basment have cracks in them and they look like they are bowing
Project Location: Dunellen, NJ
Floor damage from flood
Project Location: Dunellen, NJ
My basement was recently damaged during the storm. I had 2 1/2 feet of water everything was destroyed we need a new start
Project Location: Dunellen, NJ
Insulating crawl space quote for home sale
Project Location: Dunellen, NJ
Water goes into basement, manager reports at times seaps through a wall.
Project Location: Dunellen, NJ
When it rains heavy my basement gets water in one area
Project Location: Dunellen, NJ
When it rains heavy my basement gets water in one area
Project Location: Dunellen, NJ
12 by 23 ft. slab has shifted

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