Serving St. Catharines, ON

Downspout Repair & Installation in St. Catharines, ON

Blocked, disconnected, or undersized downspouts fixed by licensed, insured crews. Free on-site assessments for homeowners in St. Catharines.

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Google Reviews

Trusted by Homeowners Across Hamilton

5.0 rating from verified customers
K
Krishn Sharma
Local Guide · 21 reviews · 2 photos
NEW
2 weeks ago

Asad did great job replacing and cleaning the downspout. Will highly recommend.

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S
Sameea Amin
12 reviews · 2 photos
NEW
a week ago

Ironmark Exteriors did a great job, they cleaned our gutters in Stoney Creek, provided before and after photos of the job, I am very happy with their service and also the service was very affordable.

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K
Kalsoom K
Local Guide · 12 reviews · 3 photos
NEW
6 days ago

Ironmark Exteriors installed a brand new downspout at our place, it's working perfectly. Their prices are very reasonable. I will definitely hire them again. Thank you for your service.

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Know the Warning Signs

Signs Your Downspouts Need Attention

A downspout that's visibly disconnected, loose, or knocked out of position

Rust spots, corrosion, or holes in the downspout material

Water staining on the foundation or siding near a downspout

Overflow at the top of the downspout during moderate rain

A downspout extension that's missing, crushed, or pointing the wrong way

Water pooling at the base of a downspout instead of draining away

St. Catharines' older neighbourhoods near the Welland Canal have some of the longest-serving downspout systems in our service area, and canal humidity makes material condition worth checking closely.

Local Conditions

Downspout Repair in St. Catharines

Port Dalhousie and Western Hill have many established homes where downspouts have been in place for decades, and corrosion at the seams is usually the first sign a section needs replacing rather than just repairing.

Canal and lake humidity accelerates wear on older downspout materials, which is part of why we recommend aluminum replacements for anything showing early corrosion rather than waiting for a full failure.

How We Work

Our Downspout Repair Process

1

Inspection

We check every downspout on the property, not just the one you flagged, for blockages, disconnections, corrosion, and proper slope away from the foundation.

2

Diagnosis

We identify whether the issue is a blockage, a loose connection, undersizing for the roof area, or material failure, and explain exactly what needs to happen.

3

Repair or Replace

Depending on what we find, this means clearing a blockage, reattaching and resealing joints, or replacing a corroded section with new aluminum downspout.

4

Extension & Placement

We confirm each downspout directs water at least several feet from the foundation, adding or adjusting extensions where needed.

5

Flow Test

We run water through the full system to confirm it drains cleanly from gutter to ground before considering the job finished.

What We Fix

Common Downspout Problems

Disconnected Sections

Downspouts knocked loose by ladders, landscaping equipment, or ice can separate at the joints, dumping water in the wrong place entirely.

Corrosion & Rust-Through

Older steel downspouts eventually rust through, usually at the seams first, letting water escape mid-run before it reaches the ground.

Missing or Damaged Extensions

Without a proper extension, water discharges right next to the foundation instead of several feet away, which is one of the most preventable causes of basement moisture.

Undersized for the Roof

A downspout that's too small for the roof area it's draining will overflow during heavy rain no matter how clear it is.

Poor Slope or Placement

A downspout that empties onto a slope toward the house, rather than away from it, can undo the benefit of an otherwise well-maintained gutter system.

Blocked or Clogged Downspouts

Leaves, debris, and even small nests can block a downspout completely, forcing water to back up and overflow at the top instead of draining through.

Frequently Asked Questions

Yes, we inspect the downspout system in person before quoting any work, since the right fix depends on exactly what's causing the problem.

Impact damage from ladders or landscaping equipment, corrosion on older steel systems, and wind-related disconnection are the most common causes we see across our service area.

Yes, this is a common and important fix. We add or adjust extensions so water discharges well away from the foundation instead of pooling right beside it.

It depends on whether it's a simple reattachment, a blockage, or a full section needing replacement. We give you a clear quote after seeing the actual issue, not a guess over the phone.

If gutters overflow at the top during moderate rain even when clear of debris, undersized downspouts are a common cause. We calculate proper sizing based on your actual roof area during an assessment.

Most blockages, loose joints, and minor disconnections are straightforward repairs. If a section is corroded through or cracked in multiple places, replacing that section usually makes more sense than repeated patching.

This is almost always a downspout extension problem, water discharging too close to the house instead of being carried several feet away. It's one of the most common and most preventable causes of basement moisture issues.

Serving Port Dalhousie, Western Hill and Old Towne and the rest of St. Catharines, ON.

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