Cleaning is the cheapest way to find out whether your eavestroughs are worth keeping. This guide lays out a simple test, a table for reading the result, and clear rules for choosing between cleaning and replacement.
In This Article
Clean first, decide second
Many eavestroughs that look ruined are only clogged. Packed debris hides the true slope, masks leaks and makes a sound trough seem to sag. Until it is empty, you are judging it in the worst possible light.
That is why the sensible order is to clean, then decide. A cleaning visit answers the real question: does the trough still do its job when it is empty and clear? D&D Home Services publishes a starting price of $125 for gutter cleaning on typical Kitchener-Waterloo homes, so the diagnostic step is the least expensive part of the decision.
People get this wrong in two directions. Some replace a system that only needed a clean, paying for new metal to fix a blockage. Others keep patching a worn-out run, spending on sealant and hangers every year while the fascia behind it slowly rots. The test below guards against both mistakes.
The test: clean, flush, watch
- Clean the trough completely, down to bare metal, in dry weather.
- Flush each downspout and note how fast the water leaves.
- Run a hose slowly along the trough from the high end, and watch for puddles, drips and overflow.
- Look behind it. Press the fascia beside the hangers, and check the roof edge for stains, gaps and rot.
- Wait for a real rain and watch it perform, from the ground and under cover.
Do the ladder steps only at a single-storey eave, on firm ground, with a standoff and no wires nearby. Higher work belongs to a crew.
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Reading the result
| What the test shows | Usual verdict |
|---|---|
| Drains freely, no leaks, straight run | Keep it and clean on a schedule |
| One or two seams weep, one hanger is loose | Repair, then clean on a schedule |
| Puddles in one section that returns after re-hanging | Replace that section, or re-hang the run |
| Overflow in ordinary rain even though the trough is clean | Check size and layout, and plan an upgrade |
| Cracks, rust holes or brittle, splitting material | Replace the affected runs |
| Soft or rotten fascia behind the trough | Fix the wood first, then replace or re-hang |
| Failures in many places at once | Replace the system |
Choose cleaning if... choose replacement if...
Choose cleaning if:
- The trough drains freely once it is clear, and the slope holds.
- Leaks are limited to a seam or two that a reseal can fix.
- The fascia is solid and the hangers grip firmly.
- The system copes with your roof in heavy rain.
Choose replacement if:
- The metal is cracked, pitted, rusted through or brittle.
- Sag returns after re-hanging, or seams keep reopening.
- Chronic overflow continues after cleaning, and the system is undersized for the roof.
- You want to change the profile, colour or size, or add a type of guard that needs a sound, correctly sized trough.
- The cost of repeated repairs is heading toward the cost of a new run.
What a replacement actually involves
New eavestroughs are more than new metal. A proper job includes:
- Measuring every run, corner and downspout location.
- Choosing a size and profile that suit the roof area.
- Removing the old troughs and checking the fascia and drip edge underneath.
- Hanging the new runs at the right slope, with enough hangers.
- Sealing corners and end caps, and fitting outlets and downspouts.
- Carrying discharge well away from the foundation.
A good quote lists all of it, along with the trough thickness and the finish.
Timing a replacement, and what to ask
If replacement is on the cards, line it up with other work. New troughs go on better when the roof edge and fascia are already in good order, and re-roofing is a natural moment to match the drip edge and troughs. Ask for options in writing: repair, partial replacement and full replacement, each with the fascia condition noted.
The repair versus replacement guide and the eavestrough installation cost guide give more detail. D&D quotes eavestrough installation with no published starting price, and confirms each price in writing before work begins. To start with the diagnostic clean, see gutter cleaning.
Key Takeaways
- Clean first, decide second, because clogged troughs look worse than they are.
- Clean, flush, hose-test and check the fascia, then watch a real rain before deciding.
- A few seam leaks or a loose hanger are repairs, while cracks, rust holes, returning sag or many failures point to replacement.
- Ask for repair, partial and full replacement options in writing, with the fascia condition noted.
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