Why We Do not Recommend Gutter Guards

Start with the math

Gutter guard installation on an average home runs somewhere between $3,000 and $10,000, depending on the system and the size of your roofline.

Having your gutters professionally cleaned costs $150 to $400 a visit. Most homes need that once a year.

So do the arithmetic. At the low end, you could have your gutters cleaned every year for twenty years before you’d spend what the guards cost. At the high end, closer to twenty-five years.

Twenty years of not thinking about your gutters, versus a one-time payment that – as we’ll get to – doesn’t actually stop you from thinking about your gutters.

That’s the entire argument in one paragraph. Everything below is why the second half of that sentence is true.

They do not work completely

This is the part the sales pitch skips.

Guards keep leaves and large debris out of the trough. They do that reasonably well. What they do not do is keep debris off your roof – it collects on top of the guard instead of inside the gutter.

In the fall that means a mat of wet leaves sitting on a screen. In an Ottawa winter it means that mat freezes. Now you have a solid layer of ice sitting over the one channel that’s supposed to be moving meltwater off your roof.

You still have to go up there. You’re just cleaning a different surface.

They can make water behave worse, not better

Water coming off a roof in volume has momentum. A gutter with an open top catches it. A gutter with a guard over it has to get that water through a screen, a slot or a set of louvres first.

In a heavy Ottawa downpour – or during a fast spring melt – water can overshoot the guard entirely and run straight past the gutter to the ground beside your foundation. That’s the exact problem the gutter was installed to prevent.

Some systems handle this better than others. None of them handle it as well as an open, clean gutter.

The problem you can’t undo: shingle dust

This is the one that concerns us most, and it’s the least discussed.

Asphalt shingles shed granules constantly – it’s normal, it’s how they age. Those granules are small enough to pass straight through most guard systems and settle in the bottom of your trough. Over time they build into a dense, gritty sludge.

With an open gutter, we scoop that out. It takes minutes.

With guards installed, that sludge is sealed underneath a system that was specifically designed not to come off easily. Getting to it means partially dismantling the guards – and on many systems, removing them damages them or voids the warranty.

You’ve paid several thousand dollars to make a routine job into a difficult one.

Ask yourself why there are so many kinds

There’s an old line about not being able to build a better mousetrap. The reason is simple: the basic mousetrap works. It has barely changed in a hundred years because it doesn’t need to.

Now count the gutter guard systems on the market. Mesh. Micro-mesh. Reverse curve. Foam inserts. Brush inserts. Surface tension. Louvred.

Five or six fundamentally different designs, all sold as the solution to the same problem.

That’s not a sign of a healthy, competitive product category. That’s what it looks like when nobody has actually solved it. If one design genuinely worked, it would have won, and the others would have disappeared. They haven’t, because each one trades one weakness for another.

What we recommend instead

Have your gutters cleaned once a year. In most Ottawa neighbourhoods that’s late fall, after the leaves are down.

If your house sits under mature trees – a lot of Nepean, Carp and Manotick – twice a year is better. Once after the spring seeds and helicopters, once after the fall leaves.

That’s it. That’s the whole maintenance plan. It’s a few hundred dollars a year, someone else goes up the ladder, and while they’re up there they can see the things you’d want to catch early: a loose bracket, a seam starting to separate, a section of fascia going soft.

A guard system can’t tell you any of that. A person on a ladder can.

The honest caveat

Are there situations where guards make sense? A few. If your roof is genuinely inaccessible, if you have a specific reason nobody can service it regularly, or if you’re in a house you’ll never leave and you’ve made peace with the cost – the calculation is different for you.

But for most homes, most of the time, guards are an expensive way to buy a partial solution to a problem that a yearly visit solves completely.

We’d rather tell you that up front than sell you something you do not need.