Approach
Interior vs. exterior
When this is best
Pick interior drains and sealing when digging is limited, or exterior membrane when access allows.
Key details
- Access and soil conditions
- Speed vs. disruption
- Future maintenance needs
Waterproofing | Toronto & GTA
Stop water at the source and protect your home
If you see damp walls, musty smells, or puddles after rain, we find the cause, seal it properly, and keep the work clean.
- Root-cause inspection before any drilling or digging
- Protection for floors, stairs, and nearby rooms
- Clear pricing with options that fit your home
275+Waterproofing projects in the GTA
4.9/5Homeowner satisfaction
2-yearWorkmanship warranty
Waterproofing headaches
Why water keeps coming back—and how we stop it
We target the source, not just the symptom, so you are not paying twice.
•
Sealing the wrong spot
Coating walls without fixing drainage or cracks just hides the problem for a while.
•
Missed prep and cleanup
Dust, mud, and debris left behind make the space unusable and damage finishes.
•
Surprise add-ons
Hidden costs show up when scope is unclear or soil and structure are not checked first.
Our fix: Find the source, protect your home, and give you straight options before any work starts.
We inspect drains, cracks, and moisture paths first, then set a clear scope and schedule.
Talk through your leakFast
Process
How we waterproof without turning your home upside down
You get a clear plan, protection, and same-day updates so you know what is happening at every step.
- Visit1
Inspect and plan
Check moisture points, drains, grading, and cracks. Explain options and pricing before work starts.
- Prep2
Protect and stage
Cover floors and paths, set containment if needed, and stage tools and materials outside the way.
- In progress3
Waterproof at the source
Seal cracks, install membranes or drains, manage grading or sump connections, and test as we go.
- Final4
Confirm and clean
Inspect the work with you, clean up, and share care steps so the fix holds.
Need coordination with other trades? We will build a shared schedule.
Key choices
Waterproofing choices that change results
We keep options clear so you can choose what fits your home and timeline.
Each choice comes with pros, cons, and timing explained in plain language.
What waterproofing costs in Toronto
Prices include protection, core labor, and cleanup. We confirm after a walkthrough so you know before we start.
Small scopes
Targeted repair
Single crack or tie-rod injection with sealing and cleanup.
$850 - $2,500
- Protection and site prep
- Injection and sealing materials
- Basic disposal and cleanup
- Scheduling around your availability
After-hours or rush work available.
Most basements
Interior drain
Interior drain channel, membrane, and sump tie-in for one side or room.
$3,500 - $9,500
- Detailed prep and protection
- Drain channel, membrane, and sealing
- Daily updates and tidy tear-down
- Final walkthrough with touch-ups
Battery backup sump or larger coverage as needed.
Comprehensive
Exterior system
Exterior membrane, weeping tile, and grading fixes for full walls where access allows.
$10,000 - $22,000+
- Excavation and protection
- Membrane, drainage, and insulation where needed
- Expanded protection for occupied homes
- Documentation and care guides
After-completion inspections and maintenance visits available.
What every itemized quote includes
- Written scopes with allowances so you know where money goes.
- Protection, cleanup, and debris removal included.
- Post-project check-ins to keep moisture in check.
Quotes are fully itemized with allowances, contingency, and requested add-ons itemized for clarity. No hidden feesever.
What moves pricing
What changes the cost of waterproofing
Scope, access, and soil or wall conditions shift the final number.
Existing conditions
Crack length, wall condition, and moisture level affect prep time and materials.
Access and digging
Tight side yards, decks, or landscaping can add labor and staging time.
Interior vs. exterior
Interior drains are faster; exterior excavation adds time, disposal, and backfill needs.
Drainage and sump needs
Adding or upgrading drainage and pumps changes materials and electrical work.
Cleanup and protection needs
Occupied homes and finished basements need more protection and end-of-day resets.
We price with you upfront and flag any changes right away. No surprises.
Get detailed pricingProtection so your home stays clean
We cover paths, manage dust, and keep the site safe before tools come out.
Cover and contain
Floors, stairs, and nearby finishes are covered before demolition or drilling.
Dust and debris control
Extraction on tools, daily cleanup, and vent protection to keep air clear.
Clear walkways
Staged tools and marked paths so your home stays easy to use.
Secure site
Crew check-in and lock-up so your home stays secure after hours.
Protection and cleanup are built into the plan, not an add-on.
Preparation
How to get ready for waterproofing
A few quick steps keep the visit fast and tidy.
- List where and when water shows up, with photos if you have them.
- Clear access to walls or floors where we will work.
- Share past repair invoices or tests if available.
- Plan pet or family schedules we should work around.
- Pick one contact for quick approvals.
When waterproofing should wait
If pausing protects your home or budget, we will say so before starting.
Active structural movement
What usually happens
Moving or cracked structure can reopen seals and membranes.
Our fix
We bring in structural support or repairs before sealing.
Unknown utilities
What usually happens
Hidden lines near dig zones can risk safety and delays.
Our fix
We locate and mark lines and adjust the plan before digging.
No decisions on access
What usually happens
Unclear interior vs. exterior choices slow work and add cost.
Our fix
We align on the approach and approvals before ordering materials.
Waterproofing questions we answer often
Straight answers on timing, cost, and keeping your space clean.
1Can you work from inside only?
1
Can you work from inside only?Often yes. Interior drains and crack injections avoid digging where exterior access is limited.
2How long will it take?
2
How long will it take?Crack repairs can be done in a day. Interior drain work usually takes 2-5 days. Exterior systems vary with access—we tell you upfront.
3Do you handle permits?
3
Do you handle permits?If permits or inspections are needed, we coordinate them and align with your city or condo rules.
4Will the area be usable during work?
4
Will the area be usable during work?We set a schedule that keeps key areas usable when possible and provide daily updates on what is accessible.
5Do you warranty the work?
5
Do you warranty the work?Yes. We back our workmanship and follow manufacturer specs on membranes and pumps so coverage stays in place.
Have more questions? We're here to help with planning, budgets, and timelines.
Book a consultFor Homeowners In:
City of Toronto
Mississauga
Brampton
Oakville
Vaughan
Markham
Richmond Hill
Caledon
What clients say about our waterproofing
Recent projects across Toronto, Mississauga, and Brampton.
4.9/5 average rating
5.0
“We were impressed by the professionalism of the contractor and his team. Thank you for doing an excellent job with meticulousness and exceeding our expectations. We highly recommend this company. Thank you Mike.”
Kabeya DaniellaGeneral contractor
5.0
“Very professional and quality of work is excellent.”
Xavier HusseyGeneral contractor
5.0
“Mike is committed, passionate, and responsible to complete the work. I am glad I got him to do my renovation work. The results were amazing.”
Dhanasekaran ShanHome renovations
Ready to keep water out for good?
Tell us where the water shows up and your timing. We will price it clearly and get you on the schedule.
- Protection-first approach for occupied homes
- Clear schedules with daily communication
- Warranty-backed workmanship across the GTA