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How toGutter Guards

How do I install gutter guards?

On a single-storey eave you can install most DIY gutter guards from a ladder. Clean and flush the gutters, fix leaks, then cut and bend the sections on the ground. Fasten each one to the gutter's front lip with screws or tape and to the fascia or the back of the gutter, so you never lift the shingles. Then check the fit and test with a hose.

Free to ask. Local shops send quotes, and you pay only when you book one.

By Kasra Taheri, Founder, LoclisPublished

Researched and drafted with AI, then checked claim by claim against the sources listed below before it was published. Prices and rules change; the dates beside each source say when it was last checked.

Step by step

Read when to stop and call a pro, further down this page, before you start.

  1. Step 1: Check that the job is yours

    Do this only on a single-storey eave you can reach from a ladder on firm, level ground, with every ladder position well clear of the service wire and any other overhead line.[6]

  2. Step 2: Put on gloves and glasses

    Wear gloves and safety glasses for the whole job, because cut metal rails and mesh can have sharp edges.[2][3][5]

  3. Step 3: Measure and buy

    Measure each gutter run, note the corners and downspouts, and buy enough sections for the total length plus a spare for corners and mistakes.

  4. Step 4: Set the ladder

    Rest the ladder on the wall or a standoff rather than the gutter, with the base out a quarter of the height to the point of support and the feet blocked or footed by a helper.[6][1]

  5. Step 5: Clean and flush the gutters

    Scoop out the debris, then flush the whole run with a hose until water flows freely from the bottom of each downspout without backing up.[3]

  6. Step 6: Fix leaks and sags first

    Make sure joints and corners are sealed and not leaking and the gutter is sound before any guard goes on.[5][1]

  7. Step 7: Cut and bend on the ground

    Make every cut and bend at ground level with tin snips, bending the back of the mesh up or down so it can fasten to the gutter, drip edge or fascia instead of going under the shingles.[2]

  8. Step 8: Prepare the front lip

    If the guard is taped, clean the gutter's front lip with the solvent the instructions name and install only in 65 degree weather or warmer.[2]

  9. Step 9: Start at a corner or outlet

    Begin at an inside corner, or at the downspout if there is no corner, and work along the run one ladder position at a time.[2]

  10. Step 10: Fasten each section

    Press the tape down firmly or drive the self-tapping screws through the front rail, three per section on the guards that call for three.[2]

  11. Step 11: Overlap the joints

    Lay each new section's mesh over the end of the last one so there is no open seam for debris to fall through.[2][3]

  12. Step 12: Close the ends

    Trim the rails back at each gutter end and fold or tuck the extra mesh down to cap the end against debris and nesting animals.[2][3]

  13. Step 13: Check the fit

    The front frame should sit flat on the front lip with no gap, and the mesh trough should sit at least 1/8 inch below the lip.[1]

  14. Step 14: Test with a hose

    Run a hose onto the roof edge above the guard and watch that water goes through the guard and out the downspout rather than over the front.

You can install most store-bought gutter guards yourself on a single-storey eave. The job is mostly preparation: clean and flush the gutters, fix any leaks, cut and bend the sections on the ground, then fasten them along the gutter one ladder position at a time. Use a guard that fastens to the gutter and fascia rather than one that has to be slid under the shingles, and you never have to touch the roof.

This guide covers single-storey eaves only. For a second storey, or a gutter you can only reach from the roof, read whether gutter guards are worth the money and hire the job out.

Pick a guard that fits your gutter and roof

Gutter guards sold for do-it-yourself installation come in a few broad types: snap-in plastic screens, perforated or expanded metal sheets, and fine stainless micro-mesh on an aluminum frame. Most are made to fit standard K-style gutters, sold by gutter width, so measure the top opening of your gutter before you buy.

A section of black expanded-metal mesh gutter guard with a bent edge, lying on a concrete floor
Photo: Stilfehler, CC BY-SA 4.0, via Wikimedia Commons

The bigger choice is how the back edge is held. Many guards are designed to slide under the first course of shingles. That means lifting roofing, and it is not always safe for the roof: If your roofing material is adhered to your underlayment, Gutterglove's instructions say not to slide its guard under the shingles at all.[1] Its micro-mesh guide adds a plain warning: do not pry up your shingles or tear your underlayment.[2]

The alternative, and the one this guide follows, is to bend the back of the mesh up or down and fasten it to the gutter, the drip edge or the fascia with screws.[2][1] Buy a product whose instructions include that below-the-roofline method.

To estimate how much to buy, measure every run and count corners and downspouts. For scale, Amerimax's snap-in PVC guards come in 3-foot sections that fit standard K-style gutters, and the company puts an average home at about 70 pieces, roughly 210 feet.[4]

Before you start

Clean the gutters properly. Scoop out the debris by hand or with a gutter scoop. Flush the whole system with a hose until water flows freely from the bottom of the downspout with none backing up in the gutter.[3] A guard locks in whatever you leave behind.

Fix the gutter first. Make sure all existing joints and corners are well sealed and not leaking,[5] and complete any repairs to the gutters and downspouts first.[1] A sagging section or a loose hanger will not get better with a guard on it.

Check local rules. Pittsylvania County's building department lists gutters among the work that does not need a building permit, while noting that setbacks and other zoning requirements may still apply.[7] Pittsylvania County's list points to Section 108.1 of the Virginia Construction Code and the Virginia Residential Code for any other exemptions.[7] Check with your own county or city building department before you start.

Protect your hands and eyes. Amerimax's metal guard instructions say: "Wear safety glasses and leather gloves while installing this product."[3] Peak warns that before, during and after cutting, metal components may have sharp edges which could fragment,[5] so keep gloves and glasses on while you trim rails and mesh as well as on the ladder.

Set the ladder right. Use a ladder standoff so the ladder bears on the wall, not the thin gutter. Pull the base out until its distance from the wall is one-fourth of the height to the point of support,[6] block or foot the bottom, and remember that the top two rungs of a straight or extension ladder are not for standing on.[6] Keep three points of contact while you climb; tools go up on a belt or a rope rather than in your hands.[6]

Look up. A metal ladder must not be used when working on or near electrical wires.[6] Plan every ladder position well clear of the service wire to the house and any other overhead line, and skip any section you cannot reach without coming near a wire.

Getting the fit right

Two details decide whether a guard works or spills water.

The slope matters. Gutterglove's guide says the guard should slope between 5 and 25 degrees, dropping to 5 to 10 degrees on a steep roof or a gutter hung low.[1] A slope helps wind and rain carry leaves off the top. Bending the back edge up or down is how you set it on a below-the-roofline install.

The front edge matters more. The front frame of the guard should sit flat against the gutter's front lip, and the mesh trough at least 1/8 inch below that lip.[1] Get either one wrong and water can spill: "Rainwater may run over the front lip of your gutter if these steps are overlooked."[2]

If you use the adhesive tape that comes on some guards, clean the front lip with the cleaner the instructions name: Gutterglove's micro-mesh kit calls for acetone, and its Atlas guide for 1 part 70% isopropyl rubbing alcohol and 4 parts water.[2][1] Gutterglove's instructions are for the tape to install in 65 degree weather or above and to allow a minimum of 12 hours for the bond to cure.[1] On a cool Virginia fall day, screws are often the better option. In high wind areas, Amerimax calls for two sheet metal screws per snap-in piece through the gutter's front lip.[4]

Corners take the most patience. Mitre or trim the rails as the instructions show, overlap the mesh, and tuck any loose edge down into the gutter so there is no gap at the corner for leaves to drop through.

After the install

Run a hose on the roof edge above a few sections, including any corner below a roof valley, and watch where the water goes. It should disappear into the guard and come out of the downspout. Water sheeting over the front usually means a gap at the front lip or a trough sitting too high.

A guard cuts down how often gutters need clearing; it does not end it. See how to maintain gutter guards for the routine, and why gutter guards keep clogging if water starts spilling again.

Stop and call a pro if

  • The gutter is on a second storey, or the only way to reach part of it is from the roof.
  • The guard you have can only be installed by lifting shingles, or the shingles are brittle, sealed down or already lifting.
  • A ladder position would bring you near the service wire or any overhead line.
  • The gutter sags, leaks at the seams, or the fascia behind it is soft or rotten.
  • You want heated cable added to stop ice. Use a licensed electrical contractor for any heated gutter or roof cable.[1]

For more on the subject, read the exterior answers, browse gutter guard services, or look up exterior businesses around Blacksburg. If you would rather have it done, describe the gutter guard job once and local businesses quote it.

Common questions

Do I have to slide gutter guards under my shingles?
No. Many guards offer a below-the-roofline method where the back edge is bent and screwed to the fascia, drip edge or back of the gutter. That is the method this guide uses, because lifting shingles is roof work and can break the seal or tear the underlayment.
Do I need a permit to put gutter guards on in Virginia?
Check with your local building department before you start. Pittsylvania County, for example, lists gutters as work that needs no building permit and notes that setbacks and other zoning requirements may still apply. Ask in particular if you are also changing the roof edge or adding heating elements, which Gutterglove says to have a licensed electrical contractor install.
Tape or screws: which holds better?
Both are offered by the same manufacturers. Gutterglove's taped guards need a front lip wiped clean with the cleaner the product's instructions name, 65 degree weather or warmer and 12 hours to cure. Its instructions refit a removed guard with screws, through the same holes if it was screwed on the first time. In high wind areas, Amerimax calls for screws through the front lip of its snap-in guards.
Can I install guards on a second-storey gutter?
Not with this guide. A second storey means a long extension ladder and a much worse fall. Hire a gutter installer for upper runs, or have the whole house done at once.
Will guards work on 6-inch gutters?
Many are sold for 5-inch and 6-inch K-style gutters, but buy for your exact size. Amerimax notes that on a 6-inch gutter hung low, its metal guard may need to sit inside the gutter rather than under the shingles.

Sources

  1. [1] Atlas Gutter Guard Installation Guide, Gutterglove, Inc.. Checked October 26, 2026.
  2. [2] Stainless Steel Micro-Mesh Gutter Guard DIY Kit Install Guide, Gutterglove, Inc.. Checked October 26, 2026.
  3. [3] Metal Lock-In Gutter Guard: Easy Installation Instructions, Amerimax, OmniMax International, Inc.. Checked October 26, 2026.
  4. [4] Snap-In Guard and Snap-In Filter Installation Instructions, Amerimax Home Products, Inc.. Checked October 26, 2026.
  5. [5] Gutter Guard Installation Instructions, Peak Innovations Inc.. Checked October 26, 2026.
  6. [6] Portable Ladder Safety Program, Virginia Commonwealth University, Safety and Risk Management. Checked October 26, 2026.
  7. [7] Do I Need a Permit?, Pittsylvania County Building Inspections. Checked October 26, 2026.

Want a pro to handle it?

Describe the job once. Licensed local businesses send quotes, and you pay only when you book one.