Can Gutter Guards Be Installed on Existing Gutters?

Yes. What has to be true of the gutters first, and how the guards go on.

4.9 on Google from 210 reviews · Founded 2016 · Lifetime Workmanship Warranty

Yes. If your gutters are solid, sized for the roof and draining to the downspouts, guards go right on them, in about two hours on most houses. If they're sagging, leaking or too small, the gutters get replaced first.

Gutter guard running the length of the eave on Brubaker Dr, Kettering
New Roof and Gutter Guards on Brubaker Dr, Kettering

From the field

What we found: We install gutter guards on gutters that are already on the house as well as on new ones.

Why it mattered: A guard can't fix a gutter that's undersized, sloped wrong or leaking. What's underneath decides how the guard performs.

What we recommend: Have the gutters looked at before the guards go on.

Why: On sound gutters, guards are about a two hour job. On gutters with problems, guards are money in the wrong order.

What this means for you: Good gutters can stay where they are and get guards. Gutters with problems get replaced first.

Can you put gutter guards on existing gutters?

Yes. We install gutter guards on gutters that are already on the house as well as on new ones. The guards fit 5-inch and 6-inch gutters.

On Brubaker Dr in Kettering, we replaced the roof and then put 220 feet of guards on the existing 5-inch gutters.

What do the gutters need first?

Guards work best on gutters that are in good condition and sized for the roof. A guard can't correct an undersized gutter, a slope that doesn't drain, or downspouts that can't handle the volume. If the gutters have one of those problems, they get replaced first. Guards on top of it are money in the wrong order.

How are gutter guards installed on existing gutters?

The back edge of the guard slides under the first row of shingles. The front fastens to the front of the gutter. Nothing is fastened to the roof, so the guards will not void a roof warranty.

Mounted that way, the mesh sits at a slight slope, and the leaves that land on it wash off with the next rain. On most houses the install takes about two hours.

Do gutter guards go under the shingles?

Ours do. The back edge slides under the first row of shingles and the front fastens to the front of the gutter. Nothing is fastened to your roof, so the guards won't void a roof warranty.

What we install

A high grade stainless steel mesh with a lifetime warranty on material and workmanship. It keeps out leaves, pine needles, maple seeds, oak tassels and shingle grit while rainwater runs through. Our gutter guard installation page has the details, and our article on whether gutter guards are worth it compares ours with the guards we find already on houses.

Do you still have to clean the gutters?

No. Our guards are built so you don't have to clean your gutters. If one ever gives you trouble, call us. We'll come out and fix it so it doesn't keep happening.

Will gutter guards fit 5-inch or 6-inch gutters?

Yes. We install guards sized for both 5-inch and 6-inch gutters.

How much does it cost to put gutter guards on existing gutters?

The same price per foot as guards on new gutters we install. Our price and a calculator for your house are on the gutter guard installation page.

When do new gutters make more sense?

When the existing ones are pulling away from the fascia, holding water, or too small for the roof. We install seamless aluminum gutters in 5-inch and 6-inch sizes, and guards can go on with them.

The job behind this article

Related services

Have a question about your own roof?

Free Inspection