📞 (226) 774-0688
✉️ [email protected]
🍁 Serving Windsor · London · Hamilton · Kitchener · All of Southern Ontario
Professional waterproofing contractor
Southern Ontario's Waterproofing Specialists

Stop Your
Wet Basement
For Good.

Permanent waterproofing solutions completed in one day — backed by a written 25-year transferable guarantee. Owner on every job. No subcontractors. No surprises.

Most jobs completed in ONE day, start to finish
Written 25-year transferable guarantee — no fine print
Free inspection, written quote, zero pressure
Licensed & insured — Southern Ontario based
64+
Basements Fixed
25yr
Guarantee
6yr
Experience
100%
Satisfaction
🛡️
25-Year Transferable Guarantee
Written on every job. Transfers to next owner when you sell.
64+ basements waterproofed across Southern Ontario
Google Rating · 47+ Verified Reviews
MR
SL
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64+ homeowners across Southern Ontario trust North Basements
🛡️
25-Year Transferable Guarantee
Same-Week Appointments
🔍
Free Inspection — No Obligation
5-Star Google Rating
💳
Financing Available
🍁
Windsor Owned & Operated
🏠
64+
Basements Fixed
🛡️
25yr
Transferable Guarantee
📅
6yr
In Business
🛡️
100%
Satisfaction
Wet basement water damage
⚠️
Every Day You Wait Costs More
Water damage compounds — the longer you ignore it, the worse it gets.
Sound Familiar?

We Fix Every Type of Water Problem

From a hairline crack to full flooding — if water is getting into your home, we have a permanent fix.

01
Water Seeping Through Walls
Hydrostatic pressure from Ontario's clay soil forces water through porous concrete. Interior drainage permanently redirects it.
02
Flooding After Every Rain
Overwhelmed drainage and failed weeping tile causes flooding. We redesign the entire drainage system for any volume.
03
Foundation Cracks
Ontario freeze-thaw cycles widen cracks every year. Polyurethane injection permanently seals them — no excavation.
04
Mould & Musty Smell
Moisture creates mould within 48 hours. Eliminate the source — dry basement means no more recurring mould, ever.
05
Wet or Damp Crawl Space
Damp crawl spaces cause structural rot and indoor air quality issues. Full encapsulation seals them permanently.
What We Do

Complete Waterproofing Solutions

Engineered for Southern Ontario's specific soil and climate — not off-the-shelf solutions.

01
🏠
Interior Waterproofing
Interior drainage systems that capture and redirect water before it floods. The most practical solution for Ontario clay soil.
Most Popular
~$4,000–$6,500 · 1 Day
02
🏗️
Exterior Waterproofing
Stop water before it reaches your foundation. Full excavation, waterproof membrane, and drainage board installation.
Most Permanent
~$8,000+ · 2–3 Days
03
💉
Crack Injection
Polyurethane and epoxy injection permanently seals foundation cracks from inside. No excavation required.
Same Day
~$800–$2,000 · Hours
04
⚙️
Sump Pump Systems
High-capacity sump systems with battery backup. Protects your basement even during power outages and storms.
24/7 Protection
~$1,200–$2,500 · 1 Day
05
🌿
Crawl Space Sealing
Complete encapsulation eliminates moisture, mould, and musty odours permanently. Protects floor structure and insulation.
Air Quality
~$2,500–$4,500
06
🔧
French Drain Systems
Engineered perimeter drainage that redirects groundwater and storm runoff away from your foundation permanently.
Storm Defence
~$3,500–$6,000
The Process

Simple. Fast. Permanent.

1

Free Inspection

We come to your home, diagnose the exact problem, and explain everything clearly — no jargon, no pressure.

2

Written Quote

You get a fixed written quote before we touch anything. The price quoted is the price you pay. No surprises.

3

1-Day Installation

Our crew arrives on time, works clean, and finishes the job completely. Most basements done the same day we start.

4

Dry Forever

Written guarantee in hand. If the area we fixed ever leaks again — we return and fix it free. No questions asked.

Professional North Basements team
64+
Homes Fixed
100%
Satisfaction
25yr
Warranty
6yr
Experience
📋
Written Guarantee
Every single job
Why North Basements

We Don't Just Fix It. We Guarantee It.

The big national chains send whoever is available. We don't. Here's what actually makes us different.

👷
Certified Technician on Every Job
Not a random subcontractor. The same certified tech who inspects also does the work — so nothing gets lost in translation.
📝
25-Year Transferable Guarantee
Not verbal. Not a handshake. A written guarantee that transfers to the next owner if you ever sell your home.
💰
Transparent Upfront Pricing
Written quote before work begins. The price we quote is the price you pay. Zero hidden fees or change orders.
Done in One Day, Cleaned Up
We don't leave half-finished jobs or messes. Most basements fully waterproofed and cleaned up in a single visit.
Instant Estimate

How Much Will Yours Cost?

Waterproofing Cost Estimator

Adjust the options — your price range updates live

Estimated Range
$3,800 – $5,500
SmallMediumLarge
Price Breakdown
Core waterproofing$2,800–$4,000
Labour & materials$800–$1,200
Cleanup & restore$200–$300
Estimates only. Free in-home inspection = exact price.
Real Customers

Ontario Homeowners Sleep Better Now

Don't take our word for it. Here's what customers say after we fix their basements.

Be Our First Reviewer!
We're building our reputation one job at a time. Help other Windsor homeowners find us.
Leave a Google Review ↗
🏠
64+ Jobs Done
Every basement we waterproof comes with a written 25-year transferable guarantee. No fine print.
📞
Talk to a Real Person
No call centres. No voicemail. We pick up and respond the same day.
📞 (226) 774-0688
64+
Basements Fixed
6yr
In Business
25yr
Transferable Guarantee
100%
Written Guarantee
FAQ

Common Questions

Everything you need to know before booking a basement waterproofing inspection.

Book Free Inspection →
Yes — the City of Windsor offers up to $3,500 per property through the Basement Flooding Protection Subsidy Program. Up to $1,450 for a backwater valve and up to $2,000 for a sump pump installation. We guide you through the process. Ask us when booking your free inspection.
Yes. Flexible financing on approved credit so you can protect your home now and pay over time. Ask us about payment plans when we provide your free quote.
Basement waterproofing in Ontario typically ranges from $3,500 to $10,000+ depending on the method and severity. Interior drainage systems for most homes average $4,000–$6,000. Exterior waterproofing runs higher. We provide free inspections and written quotes — you know the exact cost before we start.
Most North Basements jobs are completed in a single day. Interior drainage, sump pump installation, and crack injection can typically be done in 4–8 hours. Exterior waterproofing may take 1–2 days depending on the length of the foundation wall.
Our written guarantee covers the specific area we waterproofed. If that area ever leaks again, we return and fix it at zero cost to you. The guarantee is transferable to the next owner if you sell, which can increase your property value.
Yes. Our certified technicians handle every inspection and installation personally — no subcontractors, ever. The same professional who quotes your job does the work.
We serve all of Southern Ontario including Windsor, London, Hamilton, Kitchener-Waterloo, Chatham, Sarnia, Brantford, St. Catharines, Leamington, Stratford, Woodstock, Tilbury, and all surrounding communities.
Interior waterproofing manages water that has entered by capturing and redirecting it. Exterior waterproofing stops water before it touches your foundation. We recommend the right method after inspecting your specific situation — both come with our 25-year transferable guarantee.
Book Online

Pick Your Inspection Date

Choose a date and time — we confirm within the hour.

⏱️
45–60 minutes
Typical inspection
💰
Completely Free
No fees, no obligation
📋
Written Quote
Exact price, no surprises
🛡️
Lifetime Guarantee
On all completed work
March 2026
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🎉
Inspection Booked!
We'll call you shortly to confirm.
Get Started

Book Your Free Inspection

Fill out the form and we'll call you within the hour during business hours. No pressure, no obligation.

🔍
Free In-Home Inspection
We come to your home anywhere in Southern Ontario. Same-week availability.
📋
Written Quote Upfront
You get the exact price in writing before we start any work. No surprises.
🛡️
25-Year Transferable Guarantee
Every job comes with a written guarantee. Transferable when you sell.
📞
Direct Contact
(226) 774-0688 · [email protected]
Request Free Inspection
We respond same day — usually within the hour

🔒 Private & secure · [email protected] · (226) 774-0688

Coverage

Serving All of Southern Ontario

From Windsor to the Niagara Region — same-week appointments everywhere.

Windsor
Essex County
London
Middlesex County
Hamilton
Hamilton-Wentworth
Kitchener
Waterloo Region
Chatham
Chatham-Kent
Sarnia
Lambton County
Brantford
Brant County
St. Catharines
Niagara Region
Leamington
Essex County
Cambridge
Waterloo Region
Guelph
Wellington County
LaSalle & Tecumseh
Essex County
🚨
Basement Flooding Right Now?
Emergency response across Southern Ontario — call immediately, we dispatch same day.
(226) 774-0688
👷
North Basements Support
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👋 Hi! Got a wet basement? We can help.
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