Interior & Basement Waterproofing in Paris, Brantford & SW Ontario
When digging outside isn’t realistic, we manage the water from inside. Interior drainage, a sump pump and a vapour barrier move water where it belongs and keep your basement floor dry — often the faster, more affordable fix.
Accredited Business · A+
Manage the Water From the Inside
Interior waterproofing is the practical fix when excavation isn’t possible or cost-effective. We capture the water and send it out before it ever reaches your floor.
Interior Drainage System
We install an interior drainage channel along the footing that catches water entering at the floor-wall joint and carries it to a sump.
Sump Pump Installation
A reliable sump pump pit and pump collect the captured water and pump it safely away from your foundation — the heart of an interior system.
Vapour Barrier
A vapour barrier on the wall directs moisture down into the drainage and keeps the finished side of your basement dry.
Cove Joint Sealing
The cove joint where the floor meets the wall is a common entry point. We seal and drain it so water can’t pool on your floor.
Crack Injection
Leaking wall cracks get injected and sealed from inside with polyurethane or epoxy as part of a complete interior fix.
Dry, Usable Basement
The result is a basement you can finish, store in and stop worrying about — backed by our written warranty.
Signs You Need Interior Waterproofing
If water shows up at the edges of your basement floor, an interior system is often the smart fix. Notice any of these? Give us a call for a free look.
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Water along the floor edgesSeepage at the joint where the floor meets the wall.
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Damp or wet basement floorMoisture spreading across the slab after rain.
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Efflorescence at floor levelChalky white residue on the lower wall or floor.
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Musty smell or humidityA damp, humid basement that never quite dries out.
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Leaking wall cracksCracks weeping water that you want stopped from inside.
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No working sump systemNo sump pump, or one that can’t keep up in a storm.
Our Interior Waterproofing Process
No pressure, no surprises, built to last. Here is what working with us actually looks like.
1. Free Inspection
We find where the water enters, check the floor-wall joint and any cracks, and tell you straight if an interior system is the right fix.
2. Clear Written Quote
Honest, itemized pricing in writing for the drainage, sump and sealing — no high-pressure pitch.
3. Drain, Pump & Seal
Our WSIB-compliant crew installs the interior drainage and sump, seals the cove joint and cracks, and sets the vapour barrier.
4. Test & Walkthrough
We test the system, clean up and walk the finished work with you — backed by a written warranty.
Honest Basement Waterproofing, Done On Point
We’re a locally owned, family-run crew, and we treat your home the way we’d treat our own. Five-plus years of basement, foundation and masonry work across Paris, Brantford and SW Ontario.
- Fully InsuredComplete liability coverage on every single job.
- WSIB-Compliant CrewSafe, compliant and trained on every site we’re on.
- Written WarrantyEvery repair we finish is backed in writing.
- Locally Owned & OperatedReal local people who answer the phone, not a call centre.
- Free, No-Pressure QuotesAn honest assessment every time, with no obligation.
- 4.9 ★ on Google67 Google reviews from happy neighbours.
Interior & Basement Waterproofing FAQ
Quick answers about interior basement waterproofing in Paris, Brantford and across SW Ontario.
Is interior or exterior waterproofing better?
Both work — they just solve the problem differently. Interior waterproofing manages water that enters, using drainage and a sump, and is faster and more affordable. Exterior waterproofing stops water at the outside wall and lasts longest. We recommend the right one for your home; see our exterior waterproofing too.
Do I need a sump pump?
For most interior systems, yes — the drainage channel needs somewhere to send the water, and a sump pit and pump move it safely away from the house. We size and install one suited to your basement.
How much does interior waterproofing cost?
It depends on how much of the perimeter needs drainage and whether a sump and crack repairs are involved. It’s usually more affordable than exterior excavation. Every quote is free and itemized in writing. Call (519) 802-2138.
Can you waterproof a finished basement?
Yes, though we may need to open a section of the finished wall or floor edge to install the drainage. We’ll explain exactly what’s involved and keep the disruption to a minimum.
Will this stop the musty smell?
Controlling the water and humidity is the first step. Once the basement stays dry, the musty, damp smell usually clears up. A vapour barrier and working sump make a big difference.
Do you back the work with a warranty?
Yes. Every waterproofing job we complete is backed by a written warranty for your peace of mind.
Trusted by Homeowners Across SW Ontario
4.9 ★ on Google from 67 Google reviews. Here’s what a few of our neighbours had to say.
Dave did a great job of waterproofing our basement. Not only did he fix the problem but he also gave valuable advice. For someone like myself who knows nothing about foundation and concrete walls of homes Dave was very knowledgeable and fixed the problem with a reasonable price.
We had Dave and his crew waterproof the one side of our foundation. They were polite, efficient, reliable and very knowledgeable. I recommend On Point for all your masonry repairs.
It was such a game changer when we met Dave and his team to help us out. Thank you Dave and the Team for hard work I would recommend this to whoever would need help. Just a phone call away makes your life easier.
Interior & Basement Waterproofing Service Areas
Based in Paris, Ontario, we travel across SW Ontario for interior and basement waterproofing:
Request Your Free Basement Waterproofing Quote
Tell us about the water in your basement — photos help — and we’ll get back to you with an honest, no-pressure assessment. Rather talk it through? Call (519) 802-2138 or email [email protected].
Damp floor or a basement that won’t dry out? Let’s take a look, free.
Interior drainage, sump systems and a written warranty, across Paris, Brantford and SW Ontario.
Call (519) 802-2138