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Gutter Repair

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Fix leaking, sagging or loose eavestroughs and downspouts. Tell us about your gutter repair project and we’ll help you find local gutter contractors who serve your area.

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Gutter repair deals with eavestroughs that have stopped doing their job: a run that sags between hangers, a corner that drips with every rain, a downspout that has come apart or a section pulling away from the fascia. Small as they look, these faults send water exactly where you don't want it, down the face of the siding, into the soil beside the basement or onto a front step where it freezes overnight.

Most repairs are quick for a crew with the right ladders and parts. They reset or add hangers, reseal or rebuild leaking seams, correct the slope so water reaches the outlet, and reconnect or replace damaged downspouts and extensions. The harder part is finding the cause. A trough that keeps pulling loose may be hanging on rotten fascia, and a gutter that overflows in every storm may simply be too small for the roof above it.

Canadian winters are hard on gutters. Snow sliding off the roof, ice packed into the trough and repeated freezing and thawing loosen fasteners and open seams, which is why so many problems show up in spring. This page covers the warning signs, the usual repairs, winter damage and how to tell when replacing the system makes more sense than patching it.

Signs your gutters need repair

Most of these can be spotted safely from the ground, ideally during or just after a heavy rain, when you can see where the water really goes.

  • Sagging runs, or a trough that dips between hangers and holds standing water.
  • Drips or streaks at seams, corners and end caps, often with stains on the siding below.
  • Water spilling over the front edge in a steady rain even though the gutter looks clear.
  • Hangers or spikes that have backed out, leaving the trough tilted or with a gap behind it.
  • A gutter pulling away from the fascia, sometimes with peeling paint or darkened wood behind it.
  • Downspout sections that have separated, been crushed or dump water at the foot of the wall.
  • Washed-out mulch, a trench in the soil or damp patches on the basement wall under one part of the roof.

Common eavestrough repairs and what they fix

A good repair crew checks the whole run, not only the dripping corner. Water that overflows at one spot is often the symptom of a slope problem or a blocked downspout further along.

  • Rehanging: replacing loose spikes or failed hangers with stronger hidden hangers screwed into solid wood.
  • Resealing seams and corners: removing old sealant and applying new gutter sealant, or patching a small hole.
  • Correcting the slope: raising or lowering hangers so water flows to the outlet instead of pooling at the far end.
  • Adding an outlet: cutting in a new downspout on a long run that overflows because it drains from one end only.
  • Replacing a damaged section: swapping out a dented, split or crushed length matched in profile and colour.
  • Downspout repair: reconnecting elbows, replacing crushed pieces, clearing blockages and resetting straps and extensions.
  • Fascia repair: replacing rotten boards behind the gutter before rehanging it, so the fasteners have sound wood to grip.

Winter damage to gutters from snow and ice

Much of the damage a gutter contractor sees in spring was done over the winter. Ice filling a trough adds a heavy load to every hanger, and as it expands it can pry seams open and push end caps out. Snow and ice sliding off a steep or metal roof can strike the front edge of the gutter, bend it down or tear a whole run off the fascia.

Downspouts suffer too. Meltwater that freezes inside can split a downspout or its elbows, and a blocked outlet sends the next thaw straight over the edge, which is why icicles along a gutter usually mean it's overflowing rather than draining. Ice forming on the roof itself is a roofing and attic question. For the gutters, have winter damage checked once the ice has melted, before the spring rains, and don't try to chip ice out from a ladder: it's dangerous and can crack the trough or pull it loose.

Gutter repair or gutter replacement: how to decide

Ask the contractor to show you what they found, with photos when the damage is out of sight. An honest repair estimate explains why the fix will last, not only what it will cover.

  • Repair when the trouble is local, such as one loose section, a leaking corner or a crushed downspout, and the rest of the system is sound.
  • Repair when seamless gutters are in good shape overall but need new hangers or a slope correction.
  • Consider replacement when seams are failing all along a sectional system and every repair seems to lead to another leak.
  • Consider replacement when the metal is corroded, split or bent out of shape in many places after years of ice.
  • Consider replacement when the gutters overflow in every heavy rain because they're too small for the roof.
  • Plan the gutters and fascia together when the wood behind them has rotted along most of the roof edge.

What to expect during a gutter repair visit

  • Inspection: the contractor looks over the whole system from a ladder, including hangers, seams, outlets and the fascia behind the trough.
  • Flow check: running water through the gutter shows where it pools, overflows or leaks.
  • Written scope: the repairs listed item by item, along with any hidden rot or damage they expect to find.
  • Repairs: rehanging, resealing, replacing sections or downspouts, and fascia work where needed.
  • Final test and cleanup: a second water test, then removal of old parts, empty sealant tubes and fasteners.

Keeping repaired gutters working through the seasons

The Government of Canada recommends checking eavestroughs and downspouts at least twice a year, and again after a severe storm, heavy rain or high winds. Most of that check can be done from the ground by looking for sagging, drips and water spilling over the edge. Cleaning is a separate job, best left to a gutter cleaning service equipped to work at height; if debris builds up quickly, ask about gutter guards while the repair is being done.

  • Put downspout extensions back in place after mowing or snow clearing so water keeps landing well away from the foundation.
  • Ask anyone working on the house not to rest ladders against the gutters, since the pressure bends the front edge and loosens hangers.
  • Have branches that rub against or drop onto the roof edge trimmed back.
  • Call a pro at the first sign of a sagging run, because a trough full of water or ice only gets heavier and pulls more hangers loose.

Gutter contractor, roofer or foundation specialist: who to call

  • Call a gutter contractor for sagging, leaking or loose eavestroughs and damaged downspouts.
  • Call a roofer when water gets behind the gutter from the roof edge, or when the drip edge and shingles at the eaves are damaged.
  • Call a carpenter, or a gutter contractor who does wood repairs, when the fascia or rafter ends behind the gutter have rotted.
  • Call a foundation or waterproofing contractor if the basement still takes on water once the downspouts drain well away from the house.
  • Call a landscaping or grading contractor when the soil around the house slopes toward the foundation.

Gutter Repair: frequently asked questions

Can a sagging gutter be fixed, or does it need replacing?

Most sagging gutters can be fixed by rehanging them with stronger hangers screwed into sound wood. If the fascia behind is rotten, it has to be repaired first or the new hangers will pull out too.

Why do my gutters overflow when they aren't clogged?

The slope may be wrong, a downspout may be blocked lower down, or the trough may be too small for the roof area it drains. Adding an outlet or a larger downspout sometimes solves it without replacing the gutter.

Can leaking gutter seams be repaired?

Yes. The old sealant is cleaned out and replaced, or a patch goes over a small hole. On a sectional system where many seams leak, it's worth asking for a quote on seamless replacement as well.

Should I knock the ice out of my gutters myself?

No. Working on a ladder over ice is dangerous, and chipping at the trough can crack it or tear it loose. Leave it to a professional, then have the gutters checked for damage after the thaw.

When is the best time to repair gutters?

Late spring, once the ice is gone and winter damage is visible, and early fall, before the leaves and snow. Urgent problems, such as a run hanging off the house, shouldn't wait for either.

Will fixing my gutters stop water in my basement?

It can help a lot when the water came from overflowing gutters or downspouts emptying beside the wall. If water still gets in afterwards, have the grading and the foundation checked.

Sources

  1. Eavestroughs and downspouts — Government of Canada

Written by the LokalMatch editorial team. Last reviewed September 10, 2026.

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What affects the cost of gutter repair

Prices depend on the details of your project. We only publish price ranges when they’re backed by real LokalMatch quote data or reliable sources. Until then, here’s what usually changes the price:

  • Roof size and the number of layers to remove
  • Roofing material
  • Slope and how steep the roof is to work on
  • Access to the roof and the site
  • Condition of the decking underneath
  • Flashing, vents, skylights and chimneys to work around
  • Amount of repair work compared with a full replacement

How to compare gutter contractors before you hire

  • Ask for a written quote that lists the materials, the scope of work and what happens if damaged decking is found once the old roof is off.
  • Look for a roofer who inspects the roof in person, including the attic if possible, before giving you a price.
  • Check that they carry liability insurance and workers' compensation coverage, since roof work is high-risk.
  • Compare quotes on the same scope: tear-off or overlay, underlayment, flashing, vents and cleanup.
  • Ask to see recent roofs they've done that are similar to yours in material and slope.

Questions to ask gutter contractors before you hire

  • Will you remove the old roofing or install over it, and why?
  • How will you handle damaged decking or other surprises once the roof is open?
  • Who will pull the permit if one is needed?
  • Can you show me proof of liability insurance and workers' compensation coverage?
  • What warranty do you offer on your workmanship, and how long does it last?
  • How will you protect my yard, gutters and siding, and how will you clean up nails and debris?
  • Will your own crew do the work, or will you use subcontractors?

When to call a pro for gutter repair

  • Water stains on ceilings or in the attic after rain or snowmelt
  • Missing, curled or cracked shingles, or granules collecting in the gutters
  • Sagging areas on the roof, which should be looked at by a professional right away
  • Ice dams that keep forming along the edge of the roof

Gutter repair permits and local rules

Some gutter repair work needs a permit or has to meet local bylaws. Rules vary by municipality, so ask your pro whether a permit is needed and who will apply for it — and check with your city or town if you’re unsure.

Permits and licensing

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