Capital City • Established 40+ Years

BASEMENT DRAINAGE & WATERPROOFING IN
OTTAWA AND SURROUNDING AREAS

Water in the basement never fixes itself. We find where it’s coming from and recommend the drainage or waterproofing solution that actually fits your home — with the same no-deposit promise Capital City is known for.

Sound Familiar?

Common Basement Problems

Every wet basement has a source. These are the problems we’re asked about most — and each one points to a different solution.

Common Basement Problems

Water finding its way through the foundation after rain or thaw, pooling on the floor.

Foundation leaks and cracks

Cracks in poured concrete or block walls that let water and moisture migrate inside.

Damp walls and moisture

Musty smells, peeling paint and humid air that slowly damage finishes and belongings.

Foundation leaks and cracks

Repeated entry points around windows, floor edges or wall penetrations that keep returning.

Our Services

Drainage & Waterproofing Solutions

The right solution depends on the source of the water problem — our assessment identifies it before we recommend anything.

Interior Perimeter Drainage Systems

A trench and perforated drain line at the base of the walls captures seepage before it reaches your floor and carries it to the sump. The go-to fix for recurring floor-edge water.

Basement Waterproofing & Moisture Control

Interior wall coatings, membranes and moisture control that keep damp walls dry and protect finished spaces from humidity damage.

Foundation Crack Repair & Infiltration Solutions

Cracks in poured foundations are often sealed from inside with injection — no digging required. We assess each crack and recommend the repair that suits it.

Sump Pump Installations & Upgrades

Where a drainage system needs a discharge point, we install reliable sump pumps and upgrade tired ones so collected water leaves your basement for good.

Exterior Foundation Waterproofing & Drainage

Where site conditions permit, excavating and waterproofing the outside of the wall stops water before it ever touches the foundation — the most complete barrier available.

Drainage Assessments & Repair Recommendations

Every job starts with an assessment: where the water comes from, how it moves, and which solution actually fits your property — with a clear written recommendation.

Not every solution suits every property. Interior drainage, crack injection, sump work and exterior waterproofing each fit different situations — the appropriate fix depends on assessing where the water enters your home.

How It Works

Drainage & Waterproofing Solutions

01

Request an assessment

Call or send the form — tell us what you’re seeing and where.

02

Assess the basement water problem

We inspect the basement and exterior clues to find where the water enters.

03

Recommend a suitable solution

You get a clear recommendation — interior drainage, crack repair, sump work or exterior waterproofing — matched to the source.

04

Discuss the proposed work

We walk through the scope, timeline and written estimate with you before anything starts. No deposit.

Winter Work

Yes — You Can Start in Winter

Water problems don’t wait for spring, and neither should you. Homeowners can enquire year-round about:

A note on exterior excavation: digging and exterior waterproofing depend on ground conditions and weather. Frozen ground can make excavation impractical, so we schedule that work honestly — when it can be done right.

Project Gallery

The Work Behind the Promise

Illustrative examples of drainage and waterproofing workmanship. This gallery is ready for Capital City’s own completed project photos as the division’s portfolio grows — no stock image is presented here as a Capital City job.

Interior perimeter drain being installed along a basement wall

Foundation crack injection repair in progress

Sump pump installed in a sump basin

Interior basement wall waterproofing

Exterior foundation waterproofing membrane
Finished basement floor after interior drainage installation

Why Choose Capital City

The Same Crew You Already Trust

The drainage division carries the Capital City standard: honest advice, clean work and a payment promise no one else makes.

The Same Crew You Already Trust

Book a free assessment. We’ll inspect, explain what we find in plain language, and give you a written recommendation — with no obligation and no deposit.

Serving Ottawa and surrounding areas.

FAQ

Frequently Asked Questions

Why is water coming into my basement?

Usually due to foundation cracks, poor exterior drainage, heavy rain, snowmelt, or high hydrostatic pressure around your foundation walls.

A system installed along the inside perimeter of your basement floor that catches water before it reaches the living space and routes it to a sump pump.
  • Interior drainage is faster, less invasive, and cost-effective for managing incoming water.

  • Exterior waterproofing stops water before it ever enters the foundation but requires digging outside.

  • Yes, non-structural and minor cracks can often be injected and sealed with epoxy or polyurethane foam directly from the inside.

If your current pump is over 7–10 years old, making unusual noises, constantly running, or failing during heavy rain, it’s time to replace it.
Yes, interior drainage systems and crack injections can be installed year-round regardless of frozen ground outside.

Proper waterproofing drastically reduces moisture and flooding risks, but long-term success requires regular maintenance of sump pumps, gutters, and drainage systems.

 

 
 

Contact Info

Phone

613-857-4746

Email

capitalcitypave@gmail.com

Service Area

403 Bank Street Ottawa, ON K2P 1Y6

Our Promise

No deposit required. You pay only when the project is complete and you’re 100% satisfied.

© 2026 Capital City Paving & Masonry. All rights reserved.Design & Developed by gbltechnologies

Free Estimate

Let's Build Something That Lasts.