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We are a1 waterproofing

London's most trusted waterproofing experts

Wet or damp basement?

  • Life time warranty on all waterproofing repairs
  • Free Inspections / Estimates
  • Utilizing the most up to date waterproofing materials and procedures

For Our Commercial Clients

  • Manage Multiple Properties? We do work for property managers, developers, etc.
  • Require a quote for waterproofing? Send us your drawing and bid closing

Drainage Solutions

  • Need reliable drainage repairs?
  • Clogged or broken sewer pipe?
  • Standing water or moist conditions?

About us

A1 Waterproofing is Canadian owned family operated company that has been waterproofing homes throughout London  & surrounding for 13 years. At the forefront of our operation is our team of professionals; that share the same commitment to excellence and dedication to providing you, our customer the best value on your investment. 

A1s reputation as a trustworthy and reliable waterproofing contractor reflects our dedication to these core values

This isnt just something we do, its something we believe in.

successfully completed projects
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years Serving London & Surrounding
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years of experience
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residential Waterproofing services

Exterior Waterproofing for residential waterproofing work in london ontario

Exterior Waterproofing

  • ONLY COMMERCIAL GRADE WATERPROOFING PRODUCTS USED
  • 3 LAYERS OF WATERPROOFING PROTECTION GUARANTEED TO LAST A LIFETIME
  • NO DOWNPAYMENTS

 

BADLY CRACKED FOUNDATION WALL, SIGNS OF SETTLEMENT 

interior waterproofing services by A1Waterproofing | Waterproofing & Foundation Repair

Interior Waterproofing

A wet or leaky basement is a significant concern that can cause thousands of dollars in damage to your property and possessions, not to mention it can also cause moldmildew, fungus, and other toxins that can cause health issues.

crack repair service in london Ontario

CRACK REPAIRS

Crack repairs are one of A1’s specialties & we’ve repaired many of them.                        We provide:

  • Exterior Crack Repairs
  • Interior Crack Repairs
  • Polyurethane & epoxy injections
  • Carbon fiber strapping & stitching
Foundation Crack Repair London Ontario

Foundation repair

  • Bowed Walls
  • Horizontal Cracks
  • Deteriorated / Crumbling Foundation

We can provide effective and professional foundation repair services. When it comes to foundations we guarantee the best solutions for your situation and budget.

Sump Pump Install and Repair Services in London Ontario

SUMP PUMPS

  • Sump Pump Installations
  • Emergency Back Up Systems
  • Maintenance & Inspections
  • Wifi Monitor & Alert Systems

Sump pumps play an essential role in preventing basement flooding and mitigating water damage, functioning as a critical system to effectively remove excess water and safeguard residential properties.

CRAWL SPCE REPAIR & RESTORATION by A1Waterproofing

CRAWL SPACE REPAIR

  • Waterproofing
  • Encapsulation
  • Insulation
  • Ventilation
  • Basic clean & seal

london's most trusted basement waterproofing experts

No Down Payments, Lifetime Warranty, Free Estimates

Why Choose A1 Waterproofing?

Lifetime Warranty – Your peace of mind matters. Our waterproofing solutions are guaranteed to last—and the warranty stays with your home, even if you sell.

 No Upfront Payments -We believe in earning your trust. No deposits or down payments required. Payment is due only when you’re fully satisfied with the work.

 Local Experts, Fast Response -We’re proud to call London home — it’s where we’ve live, worked, and raised our families. We understand water issues can be urgent, that’s why we move quick when your situation calls for the professional

Fully Licensed & Insured-We do things by the book—safe, professional work by a team that respects your home

Check out our work!

our team is doing great!

what we do

Residential Waterproofing

Foundation waterproofing is one of the most important repairs and a must-do if you want to guarantee your basement stays waterproof.

Exterior Waterproofing   
Interior waterproofing
Crack Repairs
Sump Pumps
Crawl Space Repair
Foundation Repair

Commercial Waterproofing

Our adaptability and commitment to providing consistent results are key factors in how we foster strong lasting relationships.

Below Grade Waterproofing
Above Grade Waterproofing

Drainage Services

Efficient drainage ensures the safe dispersal of rainwater and runoff. By regulating the flow of water and facilitating its proper disposal. We provide services for:

French Drain Installations
Grading
Sewer and weeping tile inspection & repair

How much can you expect to pay for exterior waterproofing, interior waterproofing?

How much can you expect to pay???

When quoting an exterior waterproofing repair there are many factors to consider when pricing takes place.

Things such as proximity to other homes or obstacles, underground services such as gas or hydro & soil type to mention a few.

On average a homeowner should expect to pay between $10,000 – $20,000 to fully waterproof the exterior of their home.

Interior waterproofing is cheaper and sometimes less evasive but unlike exterior waterproofing, which prevents water from coming in contact with the foundation it acts as a corrective method that manages water that has already entered a basement.

Cost typically range between $60 and $120 per linear foot. 

When we repair foundation cracks, we don’t mess around, upholding a rigorous standard of quality in our crack repair services. Whether performed by hand on the exterior of the home or done from the inside, we guarantee results or your repair cost is fully refunded.

Interior Vertical Crack Repairs range from $600 – $800

Exterior Vertical Crack Repairs range from $1,200 +

The size and type of drain, where it will be install as well as the obstacles that may be encountered determine the cost.
You can expect to pay from $50 – $100 linear foot.

SOME OF OUR RECENT ACHIEVMENTS

8 Mile Rd. Project

Carbon Fiber Repair (Steelway)

Boca Dental

Capital Theater

West London

Quotes within 48hrs

At A1 we understand that water can wreak havoc in a short amount of time and thats why if your issue is urgent we work extra hard to provide solutions within 48hrs

Dont Pay Until Your satisfied

A1 is so dedicated to providing their customers with the very best service we won’t ask for any form of payment until your satisfied with the work completed

Your Satisfaction, Our Priority

You can rest assured that we are so confident with our quality of workmanship that we wont ask you for payment until your satisfied with the work completed

quotes within 48hrs

At A1 we understand that water can wreak havoc in a short amount of time and thats why if your issue is urgent we work extra hard to provide solutions within 48hrs.

Don't pay until your satisfied

A1 is so dedicated to providing their customers with the very best service we won’t ask for any form of payment until your satisfied with the work completed

Your Satisfaction, Our Priority

You can rest assured that we are so confident with our quality of workmanship that we wont ask you for payment until your satisfied with the work completed.

testimonials

PARTY TIME WE WOULD LOVE IF YOU COULD COME TO COCOS BIRTHDAY PARTY THE THEAM WILL BE BOBA WE WILL BE DRINKING BOBA AND PLAING SOME FUN GAMES.

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