Contact Us For
A Free Estimate!
Reviews From Mendham
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 Mendham
Waterproof Basement Panels Installed in Mendham Basement

Waterproof Basement Panels Installed in Mendham Basement

Before After
Waterproof Basement Panels Installed in Mendham Basement Waterproof Basement Panels Installed in Mendham Basement

Water damaged these basement walls forcing the homeowner to gut her basement. Quality 1st Basement Systems installed EverLast basement wall panels to ensure that the basement walls would never be water damaged again. EverLast basement wall panels are completely waterproof and made of inorganic materials which means they will not rot or grow mold. EverLast panels were also the best fit for this basement since they come pre-finished do not need to be painted; paint flakes and peels due to water damage.

Bilco Door Repair in Mendham, NJ Basement

Bilco Door Repair in Mendham, NJ Basement

Before After
Bilco Door Repair in Mendham, NJ Basement Bilco Door Repair in Mendham, NJ Basement

Quality 1st Basement Systems replaced the basement door on this Mendham, NJ home and installed a WaterGuard basement waterproofing system. The owner had been having water in their basement for years, but now with WaterGuard it will stay dry because of its patented design. WaterGuard will never corrode, rust, or clog and is designed for high performance drainage. Now the basement is dry and looking great.

Updated Sump Pump Keeps Mendham Dry

Updated Sump Pump Keeps Mendham Dry

Before After
Updated Sump Pump Keeps Mendham Dry Updated Sump Pump Keeps Mendham Dry

Musty odors begone! Quality 1st Basement Systems replaced this sump pump with a TripleSafe sump pump. Since the TripleSafe has an airtight lid, musty odors stay out of the basement. Now this Mendham, NJ basement is up to date and dry.

Company Awards
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]
Best Places to Work 2017
Quality 1st Basement Systems is proud to have been named one of the 2017 Best Places to Work! Thanks to... [Read more]
More Awards

Mendham, NJ's Expert Foundation and Crawl Space Repair Specialist. Offering Basement Waterproofing and Concrete Leveling

Great company who did the right thing. ...
Happy Customers Surrounding Mendham, NJ
Testimonials
Reviews
Work Requests

Click the icons to see what our customers had to say.

Mendham's Basement, Crawl Space & Foundation Contractor

For over 25 years, Quality 1st Basement Systems has been the trusted basement & foundation company of Mendham. 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
You Receive:
  • Permanently Dry Basement
  • Clean Protected Crawlspace
  • Protection against Mold
  • Improved Home Value

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
  • I-Beam Wall Braces
  • 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. 

Services we offer in Mendham:

  • 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.
  • 25-year warranty on crawl space encapsulation systems.
  • Financing Available
  • FREE written estimates and inspections, and fast installation
Work Requests From Mendham, NJ
Project Location: Mendham, NJ
The concrete surround/patio around my pool has settled over the years making the pool coping from 1 tp 2 inches proud of the concrete surface. Hank Bona has recommended you since you have done this for one of his customers.
Project Location: Mendham, NJ
I have moisture damage on the one cinder block wall of my garage that is below grade. The septic tank for my house is under the deck that sits just on the other side of that garage wall. The moisture has caused the stucco finish on the garage wall to bubble and fall off in places. I would like to have the entire wall waterproofed from the inside, as access to the outside of the wall is a non-start because of the location of the septic tank and deck. Also, I do not want the repairs to this wall to cause any damage to the exterior of the house or landscape. I am getting my house ready to put on the market, so I am looking to have the repairs made ASAP.
Project Location: Mendham, NJ
We have a crack in the outside wall near the a/c unit and water coming in a corner of the basement.
Project Location: Mendham, NJ
Side steps have sunk. I want a quote to see how much to lift them up. Ilias
Project Location: Mendham, NJ
Minor seepage from old basement wall during recent rain storm
Project Location: Mendham, NJ
Looking to redo my basement but have some concerns about some of the concrete walls in the basement. One section is sometimes damp.
Project Location: Mendham, NJ
Water in basement
Project Location: Mendham, NJ
Basement egress window- Rockwell installation
Project Location: Mendham, NJ
Mold on walls of basement.
Project Location: Mendham, NJ
My home has two cellars that need work to stop leaks. Dave Sharkey
Project Location: Mendham, NJ
Hello, I am reaching out because I have a leak in my mud room (ground level) every time it rains a lot. I am checking to see if you can resolve this issue? Thank you,
Project Location: Mendham, NJ
Need vapor barrier installed in basement
Project Location: Mendham, NJ
Front concrete patio, approx 8' x 24', surrounded by brick and foundation, snuck approx. 2-3"
Project Location: Mendham, NJ
Basement leak.
Project Location: Mendham, NJ
Assessment of sump backup needs.
Project Location: Mendham, NJ
Water on basement floor
Project Location: Mendham, NJ
Water seep through from water pipe entering into basement
Project Location: Mendham, NJ
Hello - humidity related mildew-like order originating from crawl space seeping into basement and carrying through house via HVAC system is impacting my wife's asthma/allergies.
Project Location: Mendham, NJ
We had a basement addition that is leaking. We are looking for a resolution to the leak.
Project Location: Mendham, NJ
I need someone to look at my foundation asap. Please email me as I'm a teacher and can't talk during day.

our service area