Gutters in Mascouche | Bylaw 729 Compliant
In Mascouche, roof water does not disappear: it is redirected. The gutter collects it along the entire length of the roof and concentrates it at two or three points on the ground—those are the points that determine the condition of the backfill, foundation and drain ten years from now. The City put it this way after Storm Debby: “On August 9, 2024, Storm Debby left a deep mark on our community.” That day, the remnants of the hurricane dropped 171 mm of rain. An event like that does not forgive a downspout that empties at the base of the wall. We install gutters in Mascouche by following the complete path of the water, from the fascia to the ground, and meeting the municipality’s requirements at the end of that path.
Bylaw 729, Article 29: Where Your Downspout Must Go
Mascouche enforces Bylaw 729 regarding connections to the municipal sewer and water system. Article 29 directly affects the work of a gutter installer. In plain terms:
- roof runoff collected by gutters and downspouts must be discharged at the surface;
- the discharge point must be at least 150 cm (1.5 m) from the building;
- infiltration toward the building’s underground drain must be prevented;
- stormwater drainage from the property must also take place at the surface (art. 29).
In other words: the downspout does not end in the drain, but on the property, a proper distance from the wall, and the water must be able to continue its path in the open. This is not a finishing detail: it is a design constraint that determines which side receives the downspouts, how many outlets are installed, and where elbows and extensions end.
We follow the text as written: we do not invent requirements that are not stated in it. Before work begins, confirm your situation with the City of Mascouche—it is the authority that interprets its bylaw and confirms what applies to your address.
Mascouche’s Housing Stock and What It Requires
The Sociodemographic Profile of the Cities of Terrebonne and Mascouche (October 2023), based on Statistics Canada’s 2021 Census, describes a housing stock dominated by single-family homes: of 19,980 occupied private dwellings, 11,790 are single-detached houses (59.0%), 1,085 are semi-detached houses (5.4%), and 700 are row houses (3.5%). On its “City Profile” page, the City describes a territory of 106.64 km², with 73% in agricultural zones and 37% in natural areas, and a population of 54,540 residents.
Single-Family Homes: Space Means No Excuses
With clearance on all four sides, discharging water at the surface at the required distance is almost always feasible. The issue becomes the number of outlets: a long roof slope served by a single downspout will overflow at the corners before the water reaches the ground.
Semi-Detached and Row Housing: No Shared-Wall Side to Use
Along a shared wall, there is neither clearance nor land to receive the water. The route must be brought toward the front or rear, and that is decided before the gutter profile is formed.
Intense Rainfall: A Known Trend
The City states it this way: “Today, Mascouche experiences approximately 12 days per year with more than 20 mm of rain. By 2050: this number will rise to 15-16 days, meaning 33% more intense rainfall events.” A 6-inch gutter profile and one additional outlet are better than a gutter sized for ordinary rainfall.
Wooded Lots
Natural areas cover 37% of the territory. Where a property borders woodland, leaves and needles clog the outlet first. A leaf guard keeps the flow available when it is needed.
Building height determines access requirements: a second storey, dormer or steep roof slope changes the equipment needed for installation and maintenance. That must be assessed on site, not over the phone. Finally, the Mascouche River runs through the territory, and the City monitors its level—”a flow meter allowing the Mascouche River level to be monitored in real time.” What your roof sends to the ground is part of the same watershed.
Our Services in Mascouche
Repair Rather Than Replace
Separated joints, loose hangers, torn-off elbows: targeted repairs when the gutter itself is sound.
Maintenance
Cleaning gutters and outlets, checking slope, and identifying recurring overflow points.
Ice at the Roof Edge
The same retained-water problem in winter. Gutter protection is selected according to the roof.
Gutter Support
Soft fascia cannot hold hangers. Soffit and fascia issues are addressed before installation.
Building Envelope
Exterior cladding, capping, caulking and exterior insulation completed as part of the same project.
Before You Decide
An on-site assessment when overflow keeps returning to the same location.
What We Check On Site
| Point Checked | What We Look At |
|---|---|
| Fascia | Strength of the support, softened wood, and water marks behind the gutter. No hanger will hold in damaged fascia. |
| Slope | Direction and consistency of the slope toward each outlet, standing water after rain, and sagging sections. |
| Outlets | Number and location based on valleys, inside corners and contributing roof areas. |
| Ground clearance | The actual distance between the discharge point and the wall, in relation to Article 29, and the slope of the ground receiving the water. |
| Receiving ground | Low spots, compacted backfill, or a slab directing water back toward the house. If landscaping work is needed, we say so. |
Contact Us
Gouttières et Revêtements Synergy is based at 580 Chem. de Lavaltrie, local 103, Lavaltrie QC J5T 0H1. We hold RBQ licence 5723-4940-01, are Alu-Rex ÉLITE Installer, CAA-Québec Recommended and APCHQ Certified.