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Northern Oaks
Drainage Systems project by Northern Oaks Contracting in Gravenhurst, Muskoka

Drainage Systems
in Gravenhurst.

French drains, weeping tile, swales, and culverts that get water away from the building.

  • 5.0 · 19 Google reviews
  • Licensed · Insured · WSIB
  • Replies in 4-8 hours
$5M liability + WSIB
3 years building in Muskoka
Huntsville to Parry Sound
Gravenhurst · Drainage Systems

Local crews, local rules.

French drains and exterior weeping tile
Foundation waterproofing and drainage board
Swales, catch basins, and surface water control
Culverts and driveway cross-drains
Downspout, sump, and discharge lines
Waterfront and slope runoff management
(705) 571-2690

Sloped lots above Lake Muskoka and Gull Lake move a lot of surface water in a short time, and shallow soil over rock means much of it never soaks in. Drainage design here is mostly about interception: catching water above the building and routing it around, rather than trying to collect it at the wall.

In-town Gravenhurst homes with older foundations more often need exterior weeping tile with a proper outlet, because the original system has silted in or was never connected to a discharge point.

Discharge near the shoreline gets slowed and filtered. Silty runoff at the water is a compliance problem, and work in a regulated area may need conservation authority review.

Lakes and shorelines we work in Gravenhurst
Lake MuskokaGull LakeKahshe LakeSparrow Lake
How we do it

Drainage Systems done properly.

Every drain needs an outlet

The most common failed drainage system we dig up is a perforated pipe ringing a house that daylights nowhere. We establish the outlet first, then design the collection back from it, so the system moves water instead of storing it.

Wet basements and crawlspaces

Exterior excavation to footing depth, damp-proofing or membrane, drainage board, clean stone, geotextile, and new weeping tile tied to a proper outlet or sump. Interior-only fixes get considered when excavation is genuinely not possible, and we tell you which one your building needs.

Surface water on Shield lots

Shallow soil over granite means rainfall runs across the surface rather than soaking in. Swales, cross-drains, and armoured spillways are usually cheaper and longer-lasting than buried pipe on these lots.

Shoreline-aware

Discharging silty runoff at the water is both bad practice and a compliance problem. We route and slow discharge, use rock aprons and vegetated outlets, and flag when work needs conservation authority or MNRF review.

Gravenhurst projects

Drainage Systems work across Muskoka

Paver restoration & landscape refresh in Muskoka, before and after — real Northern Oaks Contracting project photo
Outdoor kitchen with wood-fired pizza oven in Muskoka — real Northern Oaks Contracting project photo
A-frame new build, framing in Muskoka — real Northern Oaks Contracting project photo
Cottage deck rebuild in Muskoka, before and after — real Northern Oaks Contracting project photo
Bathroom renovation in Muskoka, before and after — real Northern Oaks Contracting project photo
Stone fireplaces & feature walls in Muskoka — real Northern Oaks Contracting project photo
Interior renovation, drywall stage in Muskoka — real Northern Oaks Contracting project photo
Basement finishing in Muskoka — real Northern Oaks Contracting project photo
White shaker kitchen with marble waterfall island in Muskoka — real Northern Oaks Contracting project photo
Bathroom refresh, tub to glass shower in Muskoka, before and after — real Northern Oaks Contracting project photo
Walk-in shower tile build in Muskoka, before and after — real Northern Oaks Contracting project photo
Full-height fieldstone fireplace in Muskoka — real Northern Oaks Contracting project photo
Marble ensuite in progress in Muskoka — real Northern Oaks Contracting project photo
Marble ensuite with neo-angle glass shower in Muskoka — real Northern Oaks Contracting project photo
Statement marble bathroom build in Muskoka — real Northern Oaks Contracting project photo
Full basement build, drywall stage in Muskoka — real Northern Oaks Contracting project photo
Cedar deck with pergola roof in Muskoka — real Northern Oaks Contracting project photo
What clients say

Drainage Systems reviews from Muskoka homeowners .

5.0 · 19+ Google reviews
via Google
"We had an excellent experience with Northern Oaks Contracting. Rob was always friendly, professional and very knowledgeable in many different areas. Not only did he do a great job with our renovation but he noticed and helped us out in some other areas too."
Tiffany Wilson2 months ago
via Google
"I hired Northern Oaks for a driveway extension as part of my home renovation so I could park two additional cars, and I'm really impressed with the results. The quality of the work and craftsmanship really stand out. It's been over 6 months and it's held up perfectly."
Semir N.4 months ago
via Google
"The Northern Oaks Contracting crew has been amazing to work with from start to finish. Their ability to keep both customers and trades well-coordinated has made the entire process smooth and stress-free. Highly recommended to anyone looking for a reliable and professional team!"
Curtis Henhawke4 months ago
via Google
"Robert installed a kitchen backsplash for us. Communication was great and he showed up to do the work when he said he would. The price was very reasonable and quality of work excellent. Would definitely recommend them."
Iris (Nodomu)3 months ago
via Google
"We hired Rob to complete a chimney rebuild and do some work on an exterior and interior wall. The work was completed within the agreed upon time frame and when we had an issue with the fireplace after the chimney rebuild Rob was speedy to come back and sort it out."
Bryan Osowiec8 months ago
via Google
"My property manager recommended Rob. I obtained multiple quotes, and his company stood out as the most professional and offered the best price. I highly recommend them, excellent customer service and I'm very satisfied with their work."
Matt Keyvani2 years ago
2025 Quality Business Award winner
Recognised 2025

Trusted for drainage systems in Gravenhurst.

Named #1 by the Quality Business Awards for craftsmanship, transparency, and on-time delivery across Muskoka.

FAQ

Drainage Systems in Gravenhurst questions.

Can drainage be fixed without digging up the whole yard?+

Often, yes. A single intercept trench or swale upslope of the building solves a lot of sloped-lot problems in Gravenhurst for a fraction of a full perimeter dig.

Do you install sump discharge lines?+

Yes, routed well away from the foundation to a real outlet or dry well. Sump water dumped at the wall is one of the most common causes of the problem it is meant to solve.

Is a permit needed?+

Yard drainage usually does not need one. Work near the shoreline, a wetland, or inside a regulated area may need conservation authority approval, and culverts at municipal roads need an entrance permit.

How long do drainage systems last?+

A stone-and-geotextile drain with a real outlet lasts decades. The early failures are the ones built without fabric, without slope, or with no discharge point. Outlets should be checked each spring.

Do you renovate older Gravenhurst cottages?+

Constantly. Many Gravenhurst properties are 1950s to 1980s builds where the structure is sound but the systems, insulation, and layout are dated. We handle everything from selective updates to full gut renovations with structural changes.

Which areas around Gravenhurst do you cover?+

Lake Muskoka's south shore, Gull Lake, Kahshe Lake, Sparrow Lake, and the surrounding rural roads down toward the Severn.

Gravenhurst · Drainage Systems

Planning drainage systems in Gravenhurst?

Walk the site with us. We follow up with a fixed-price proposal, usually within two weeks.

12+
Areas
10
Services
$5M
Insured
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