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Products & Services
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
Aspen Air Purifier


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
EZ Post Deck Repair
Shotcrete Wall Restoration


Radon Mitigation
Radon Testing
Radon Detection
Radon Abatement
Radon Mitigation System
Before and After Pictures from St Thomas
Wet Basement Cold Storage Area, St. Thomas ON

Wet Basement Cold Storage Area, St. Thomas ON

Before After
Wet Basement Cold Storage Area, St. Thomas ON Wet Basement Cold Storage Area, St. Thomas ON

Problem: An unfinished cold storage area is a great place to store items to keep cool, such as canned food, even in the warm summer months. Although closed off from the rest of the house, if there’s water penetrating any area, it creates a damp, humid and unhealthy environment which affects the entire home in what is known as “The Stack Effect”.    

Solution:  We installed a French drain system on the problem walls in the cold storage area, added a powerful sump pump with a battery backup for improved drainage and reliability and finished it off with our BrightWall® rigid basement wall system. Now this cold storage area is dry, heathy and will look fantastic for years to come.  

Inspector:  Tom

Foreman: Justin

Help for a Humid Basement in St. Thomas, ON

Help for a Humid Basement in St. Thomas, ON

Before After
Help for a Humid Basement in St. Thomas, ON Help for a Humid Basement in St. Thomas, ON

Problem:  Even newer homes can have problem basements. This basement often felt damp and smelled musty. Excess water vapour was entering the space from the unsealed sump pump lid.

Solution: To help control humidity, we installed the super quiet and efficient SaniDry™ Sedona Dehumidifier. It’s connected directly to their updated sump pump system, so with regular maintenance, these homeowners will never have to worry about excess moisture or a damp feeling basement again.

Inspector:  Cory

Foreman: Justin

Creating a Dry and Healthy Basement in Elgin County, ON

Creating a Dry and Healthy Basement in Elgin County, ON

Before After
Creating a Dry and Healthy Basement in Elgin County, ON Creating a Dry and Healthy Basement in Elgin County, ON

Many people believe that their wet basement can’t be fixed. Perhaps because it’s been leaking for decades, such as this one in St. Thomas, Ontario. Once homeowners learn about our interior waterproofing process, and how our products and services work together to create - and keep - a basement dry, it can become life changing!

Imagine, never worrying about a heavy rain. No more damp, musty smells (caused by allergens!). No more ruined items. No more embarrassment about a wet basement!

If you believe your leaky basement is beyond help, we invite you to contact us for a complimentary inspection and written estimate: 1-844-320-1542

Company Awards
2017 Consumer Choice Award, Concrete Lifting- London
Residents in London, on voted for their favorite Concrete Lifting/Leveling company in their city and Advanced Basement Systems came is... [Read more]
2015 Consumer Choice Award- Waterproofing & Foundation Repair
LONDON, ON- Through an independent market survey, the consumers and businesses in our community have selected us as the top-ranked... [Read more]
Chatham-Kent Entrepreneur of the Year
CHATHAM, ON-The Chatham-Kent Chamber of Commerce held its 126th annual Business Excellence Awards on Thursday, March 27th, at Club Lentinas.... [Read more]
More Awards

St Thomas, ON Quality Basement Waterproofing & Foundation Repair

Trust you to do the work because I trust your workmanship....
Happy Customers Surrounding St Thomas, ON
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Reviews From St Thomas
Testimonials From St Thomas
Cost effective permanent solution
Testimonial by Adam C. from St. Thomas, ON
Very thorough and knowledgeable.
Testimonial by Bill A. from St. Thomas, ON
Job well done! Satisfied on all levels.
Testimonial by Jayden B. from St. Thomas, ON

Responsible basement waterproofing, crawl space repair, foundation repair, radon mitigation company serving St Thomas, ON

We not only adhere to the highest industry standards, we strive to be the industry leader in the home improvement related services we provide. We also use state-of-the-art products and technology which are designed to fix your home. We are the authorized Basement Systems dealer in St Thomas, ON.

Services we offer in St Thomas:

  • Wet/flooded basement waterproofing solutions.
  • Lifetime warranty on all perimeter waterproofing systems.
  • Crawl space sealing with CleanSpace vapor barrier.
  • 25-year warranty on crawl space encapsulation systems.
  • Foundation and structural repair solutions.
  • 25-year warranty against manufacturing defects on foundation products.
  • Radon Gas Testing.
  • Radon Mitigation.
  • Financing Available
  • FREE written estimates and inspections, and fast installation
Case Studies From St Thomas
These homeowners in Elgin County had foundation problems which were starting to affect their entire home. The cracking and shifting foundation was...
Work Requests From St Thomas, ON
Project Location: St Thomas, ON
We need someone to test for radon or any other potentially harmful gas that may be leaking
Project Location: St Thomas, ON
Leak coming from a corner in my basement along the bottom of the wall
Project Location: St Thomas, ON
Have vertical foundation crack in basement. Small water leak at the base.
Project Location: St Thomas, ON
Water in our basement. Once I removed drywall I noticed a diagonally crack going from the window down. Water is seeping through
Project Location: St Thomas, ON
Looking for a quote on insulating a crawl space under my enclosed porch, accessible from outside.
Project Location: St Thomas, ON
Foundation crack leading from window
Project Location: St Thomas, ON
Would like to do a radon test in our home/basement just to be sure there isn't anything to worry about. We spend a lot of time in the basement and would like to know that it is safe.
Project Location: St Thomas, ON
We have water that leaks into our basement, from certain areas/cracked foundation
Project Location: St Thomas, ON
Hello, I own a house in St. Thomas that needs some water proofing and foundation work. Looking to get some estimates, Thanks. Mark
Project Location: St Thomas, ON
My basement takes in water in the north east corner when it rains. Water rivers from all directions during the thaw or really heavy rain in fall.
Project Location: St Thomas, ON
I am looking for a quote to repair a crack in my foundation.
Project Location: St Thomas, ON
We recently purchased a house and have torn up the hardwood floor in the basement because of suspected water leaking when it rains. Since removing the floor, we've noticed holes that appear drilled in the basement floor that are letting in significant water. We'd like a quote for the repair, and if possible, to check if remedial work had been previously done by the owner to remedy this. Thank you in advance!
Project Location: St Thomas, ON
I need two foundation cracks repaired on raised ranch- from inside
Project Location: St Thomas, ON
Long time foundation cracks that leak from heavy rain in unfinished basement at 3 or 4 areas
Project Location: St Thomas, ON
Had leaks where an older full basement addition was added to an existing crawl space addition. I did a DIY epoxy injection to fill seams/cracks and it worked. A couple subsequent continuous downpours did create leakage in another area. I tried to fill that area with epoxy injection and hydraulic cement but leaks continued but only with very heavy downpours. The outside wall is inaccessible due to a raised patio/bbq area. We do have a sump pump. I could send pics of the area if necessary.
Project Location: St Thomas, ON
124 yr old 1.5 storey home with full stone stone basement & more recent concrete basement addition on rear of home Significant settling & suspected frost damage on both sides of home. General home inspection did not reveal any specific immediate concerns. Looking for assessment and estimate to repair/prevent further damage
Project Location: St Thomas, ON
We need our 130+ yr old stone foundation sealed to keep rodents out. Our basement is dry, but we need it sealed and are wanting the dirt floor areas to be covered as well to eliminate the musty dirt smell.
Project Location: St Thomas, ON
Continuous amount of water coming into basement. It appears to be where a precious addition was added to the house.
Project Location: St Thomas, ON
My cold room walls are starting to crumble and the walls always look damp .
Project Location: St Thomas, ON
Would like to do a wall leak repair like the previous one

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