Cardinal SealCardinal Seal

CANADA-WIDE PROTECTION

Seal Leaks Before Damage

We seal joints, repair leaks, and install waterproof systems that hold up to rain, snow, and freeze-thaw weather. Get clear quotes and careful work for homes, condos, shops, and facilities.

Book a consultationGet a quote
Rain-dark condo balcony seals and expansion joints gleam after a spring thunderstorm.

Metric 01

300+

projects sealed across Canada

Metric 02

24 hr

response for urgent leak calls

Metric 03

10 yrs

of sealant and membrane work

HOW IT WORKS

Simple Steps, Clear Work

Seal tubs, windows, and trim to block drafts and water.

Fresh caulk seals a bright tub corner beside pale stone tile and a blurred bathroom window.

1-2 day start

Residential Caulking

From $499

Seal tubs, windows, and trim to block drafts and water.

Floor-level view of a polished concrete lobby joint with brushed steel threshold.

Site visit first

Commercial Joint Sealing

From $1,250

Sealed parkade slab with beaded water, salt bucket, tire marks, and a concrete core sample.

Small crews

Concrete Sealing

From $950

Rooftop membrane turn-up at a parapet with gravel ballast and drain collar in dramatic misty light.
013-5 day install

Waterproof Membranes

From $2,400

Install membranes on decks, roofs, and below-grade walls.

Basement crack repair on concrete wall, sump cover and dehumidifier, dry patched seam above fading stain
02Same-week repair

Leak Repair

From $650

Find leaks fast and patch the source before more damage.

Hallway expansion joint with clean sealant bead, terrazzo floor, and blurred maintenance cart
03Annual checks

Expansion Joint Care

From $1,800

Keep movement joints open, clean, and watertight.

OUR SERVICES

Caulking And Waterproofing

We check joints, cracks, water marks, and access, then note the work needed.

Moisture meter, flashlight, crack gauge and chipped concrete on a dusty workbench in soft side light
01

Site Check

We check joints, cracks, water marks, and access, then note the work needed.

Black site folder, blank envelope, sample chip, brass clip and calculator on stone.
02

Send Quote

You get a clear scope, materials list, and timing before any crew starts.

Top-down metal tray with sealing tools, backer rod, membrane patch and soft dust in side light.
03

Prep And Seal

We clean, backer-rod, seal, coat, or membrane the areas that need work.

Sealed seam sample with water bead, mirror, flashlight and cloth on pale slab.
04

Check Results

We review the finish, test key spots, and share next care steps.

CASE STUDIES

Proof From Real Jobs

Site inspection and photos Up to 40 linear ft of sealant Joint cleaning and masking Basic crack patching Cleanup and handoff notes

One-time visitOne-time visit

Starter

From $1,250

  • Site inspection and photos
  • Up to 40 linear ft of sealant
  • Joint cleaning and masking
  • Basic crack patching
  • Cleanup and handoff notes
Most popularBilled per project

Signature

From $3,200

  • Site inspection and photos
  • Up to 120 linear ft of sealant
  • Backer rod and joint reset
  • Window, door, and trim reseal
  • Moisture check and repair map
  • 30-day follow-up review
Bid after site visitBid after site visit

Scale

Custom

  • Multi-building site survey
  • Expansion joint mapping
  • Waterproof membrane sections
  • Protective coating spec
  • Night or weekend crews
  • Closeout report and plan

WHAT CLIENTS SAY

Client Feedback That Counts

Seven balconies were resealed, and the board avoided more water stains.

Empty condo balcony with sealed edges, glass railing, snow dusting, and misty skyline.

Condo Board

Condo Balcony Leaks Stopped Before Winter

Seven balconies were resealed, and the board avoided more water stains.

Warehouse aisle with cured floor joints and pallet rack shadows in a clean concrete lane.

Warehousing

Warehouse Joints Kept Open For Heavy Traffic

Macro of a dry Toronto basement membrane, sump cover, dehumidifier and storage bins in soft light

Homes

Basement Membrane Held Back Spring Water

Sealed parkade slab with water beading across dark concrete and salt marks at the edge.

Property Mgt

Parkade Concrete Took Less Salt Damage

Empty school corridor with repaired expansion joints, polished floor and a red maintenance cone at night.

Education

School Expansion Joints Repaired At Night

Closed binders, radio handset, keys, sample cores and laptop on a maple desk

Scheduling and site checks

Maya Singh

Stainless caulk gun with nozzles and backer rod on a metal tray

Joint prep and finish lines

Lucas Tremblay

Waterproofing membrane roll, primer tin, seam roller and test patches on rough concrete in dim studio light.

Membranes and leak repair

Noah Bennett

Tablet, sample cards, envelope stack and brass paper clips on white stone, softly lit from above.

Quotes and client updates

Sofia Chen

Proof

Customer notes

Verified

“They found the leak fast and fixed the joint the same week. Our condo walls stayed dry all winter.”

Closed binders, radio handset, keys, sample cores and laptop on a maple desk

Alicia Grant

Property Manager, Lakeview Condos

Verified

“Clear quote, neat work, and no mess left behind. The roof edge seal held through two storms.”

Stainless caulk gun with nozzles and backer rod on a metal tray

Mark Iyer

Homeowner, North York

Verified

“Their crew sealed our loading dock joints on night shift, so daytime work kept moving.”

Waterproofing membrane roll, primer tin, seam roller and test patches on rough concrete in dim studio light.

Derek Wu

Site Lead, Redline Logistics

Service area

Greater Toronto

Toronto, Mississauga, Brampton, Vaughan, Markham, Richmond Hill

Toronto skyline and CN Tower above a misty calm lakefront with reeds and wet stone

Area 01

Greater Toronto

Toronto, Mississauga, Brampton, Vaughan, Markham, Richmond Hill

Vancouver skyline and North Shore mountains over foggy Fraser River wetlands at dawn

Area 02

Lower Mainland

Vancouver, Burnaby, Surrey, Richmond, Coquitlam, Delta

Calgary skyline over the Bow River bend at golden hour, with prairie foreground and faint Rockies.

Area 03

Calgary Region

Calgary, Airdrie, Chestermere, Cochrane, Okotoks

Sunlit Ontario escarpment limestone above misty fields and a calm lake-breeze horizon

Area 04

Ontario Corridor

Hamilton, Oakville, Burlington, Kitchener, Waterloo, London

The Map

Journal

Seal Care Tips And News

Questions

Common Questions

Quick answers before visitors choose a product, service, or next step.

01What areas do you serve?+

We work across Canada, with crews focused on Ontario, Alberta, and British Columbia jobs for homes and commercial buildings.

02What do you repair?+

We handle caulking, joint sealing, waterproof membranes, concrete sealing, leak repair, and protective coatings.

03How do quotes work?+

We inspect the site, note problem spots, and send a clear quote with scope, timing, and key materials before work starts.

04Do you work on small jobs?+

Yes. We take small residential fixes, plus larger condo, retail, and industrial jobs when the scope fits.

05How long does work take?+

Many sealant jobs finish in one day. Larger membrane or joint jobs can take two to five days, depending on access and weather.

06Can you help with urgent leaks?+

Yes. If water is getting in, call right away. We can often send a crew fast and start a repair plan.

Get Site Tips By Email

Get short tips on leak signs, seal care, and repair timing. One email a month, no spam.