Your eavestrough only does its job when the downspout finishes the path. We install, replace, upsize, and tie in aluminum downspouts so water ends up at least six feet from your foundation — not in your basement. Oversized 3x4-inch spouts, custom elbows, and underground extensions available.
You can install perfect gutters with the best guards on the market — if the water dumps straight onto your foundation, none of it matters. Downspouts are where most water-damage problems are actually created or solved.
Every poorly placed downspout dumps about 600 gallons per inch of rain right against your foundation wall. Moving that water 6+ feet away is the single highest-ROI exterior fix.
Saturated soil at the foundation is the number-one cause of basement water in Ontario homes. Properly extended downspouts solve roughly 70% of basement moisture complaints we see.
Summer thunderstorms can drop 25–50 mm of rain in an hour. Oversized 3x4-inch downspouts evacuate the eavestrough before it overflows over the front edge.
Repeated saturation undermines footings and causes uneven settlement. Drier soil around the perimeter keeps the house level for decades.
Toronto, Hamilton, Mississauga, and other Ontario municipalities require downspout disconnection from the sewer. We handle the work and the bylaw compliance.
Once gutter guards stop debris from clogging the system, a properly sized downspout never blocks. The two go together.
Right-sized for small bungalows, garages, sheds, and short gutter runs under 30 ft. Works in 20+ colours.
Recommended for most Ontario homes. Moves ~60% more water than 2x3. Required for any gutter run over 30 ft or fed by a roof valley.
Hinged elbows flip up for mowing, flex extensions wind around landscaping. We size the throw to push water 6–10 ft from the wall.
Buried PVC carries roof water to the street, a soak-away pit, or a rain garden. Best option when grade is flat or buildings are tight.
We map your roof area, calculate flow load per drop, and check the grade at every discharge point.
We recommend 2x3 or 3x4 based on roof area, slope, and storm load — not a one-size-fits-all default.
Aluminum stock cut and crimped on site. Elbows fitted around windows, decks, AC units, and corners.
Splash block, hinged extension, or underground PVC — we finish the discharge so water ends up where it should.
Downspouts are step three. Steps one and two are the eavestrough they connect to and the guards that keep them clear.
New seamless aluminum gutters paired with right-sized downspouts.
Stops the leaves and grit that clog downspouts in the first place.
Includes downspout flushing — most clogs we find live in the elbows.
Fix the substrate before reattaching downspout brackets and straps.
Planning the project? See our Ontario eavestrough cost guide and our breakdown of the true cost of ignoring failing gutters. Downspout disconnection and oversized 3x4 upgrades available for homeowners in Toronto and Vaughan.
A standard 2x3-inch or 3x4-inch aluminum downspout run costs $200–$450 per drop installed (including elbows, brackets, and a splash block). An oversized 3x4-inch downspout — recommended for most Ontario roofs over 1,500 sq ft — adds about 15%. Underground tie-ins to a buried drain or rain barrel typically add $300–$700 per location depending on access and depth.
The Ontario Building Code requires water to discharge at least 1.8 m (6 ft) from the foundation. We usually install rigid aluminum or flexible extensions running 6–10 feet, with the discharge point sloped away from the house. For lots with poor drainage, we tie into a buried PVC line that carries water out to the street or to a soak-away pit.
Yes, in most cases. A 3x4-inch downspout moves roughly 60% more water than a standard 2x3. For Ontario homes that see intense summer storms — and the spring snowmelt-plus-rain combination — oversized downspouts are the single best protection against overflow at the gutter, ice in the spout, and water against the foundation.
Yes. Cities including Toronto, Mississauga, and Hamilton have downspout disconnection requirements that move stormwater off the municipal sewer system. We disconnect from the sewer, cap the buried lead, and reroute the spout to a splash block, rain barrel, or surface discharge that meets your city's bylaw.
Architectural rain chains and concealed downspouts are possible but rare on retrofits. The standard approach is to colour-match the downspout to your fascia or siding so it visually disappears. We offer 20+ baked-enamel finishes including white, black, brown, almond, and custom matches for premium homes.
Quality aluminum downspouts last 25–30 years in Ontario's climate. Signs you need replacement: visible rust streaks, separation at the seams or elbows, dents from snow loading, repeated clogs from undersized spouts, or persistent foundation moisture below a specific drop. We can usually replace just the failing runs without redoing your full gutter system.
Free, no-pressure assessment of your drainage path. We'll tell you whether you need new downspouts, extensions, or just a re-route — and what each option costs.
