Whether gutter guards are worth the money on your house, which kind suits your trees and your roof, and whether the roof or the gutters should come first. Here is how we look, measure and install.
A gutter guard covers the open top of your gutter so leaves, seeds and shingle grit stay out while rain gets in. Our housing is old, and that shapes the question: 62% of the homes in Dauphin County were built before 1980, and so were 53% in Cumberland County and 56% in Perry County. Many of those houses have tall maples and oaks over the roofline and gutters that have been cleaned from a ladder for decades.
Guards are not right for every house. On some they save a lot of ladder work; on others they clog anyway or cover a gutter that is already failing. We climb up, look at the gutters, the fascia and the roof edge, measure the run and photograph what we find. Then we put the answer in a free written estimate, whether that answer is guards, a repair or nothing.
Guards pay off on some houses and waste money on others. We look for these signs before we suggest one.
Signs guards will pay off:
Signs guards will not help yet:
Where the answer is no, we say so on the estimate and leave the guard off.
Five kinds show up on houses in Cumberland, Dauphin and Perry counties. They differ in how they shed debris and in what they let through.
| Kind | How it works | Watch for |
|---|---|---|
| Perforated or screen panel | A flat or slightly arched sheet with holes sits over the gutter | Seeds and small debris pack the holes, so the panel needs brushing |
| Reverse-curve hood | Water clings to the curve and drops into a slot while leaves slide off | Fit depends on roof pitch and the shingle edge, and needles can wedge in the slot |
| Fine mesh on a frame | A stainless or aluminum screen blocks small debris | Pollen and shingle grit settle on top and need brushing |
| Foam insert | A wedge of foam fills the trough | Debris collects on the foam and seeds can root in it |
| Brush insert | Bristles fill the trough | The brush has to be pulled out and cleaned |
No one kind wins on every house. Brand names mostly sell one of these kinds, often fine mesh, installed with the maker's own hardware. So compare the kind, the fit to your gutter and the fastening, not the label. We write the kind, the footage and the fastening into the estimate.
In a downpour a roof sends a lot of water into the gutter in a short time. Whether a guard keeps up depends on four things on your house, not on the name on the box.
Where a corner overflows, the fix is often a valley diverter, another downspout or a larger gutter added along with the guard. Wet debris that sits in a gutter also feeds the mildew and the moss and algae that our humid summers bring to the roof edge, so a run that drains clean helps the first courses of shingles stay dry. When we finish a run, we send water down the slope, watch where it goes and adjust before we leave.
Freezing nights are routine here: about 101.5 nights a year at or below 32F, and 17 days when the high stays below freezing. Harrisburg's snowfall averages about 30 inches and can pass 40 inches in some winters, and Shippensburg sees about 34 inches a year. The design ground snow load is 30 psf. Hummelstown's record 21-inch blizzard in 2010 is the kind of storm that finds weak fastening.
That weather tests a guard two ways. Heavy snow and freeze-thaw cycles pull on the hangers and the guard's frame, so a guard needs real fastening to the fascia or the roof edge, not a press fit. And a gutter that holds water through a freeze swells at its seams, so the run has to drain.
If your gutters have been pulled down by ice or snow before, tell us. We look at the hangers and the fascia behind them before we add any guard.
Roof first, in most cases. A replacement strips the shingles back to the deck at the edge, changes the edge metal and sets new shingles over it, right where the gutters hang. Hang new gutters or guards and then tear off the roof, and they come down again or take a beating from the work.
The age of the roof sets the order. HUD's Residential Rehabilitation Inspection Guide gives about 20 years as the working life of a roof's first layer. With a roof near that mark, or one that leaks, we plan the roof first and fit gutters and guards after. See roof replacement. A gutter full of shingle grit is one sign the shingles are wearing out.
Gutters first makes sense when the roof has years left and the gutters are failing or the fascia is rotting. Some guards tuck under the first course of shingles, and a reroof later means lifting them out, so a house headed for a new roof soon should wait on that kind. An inspection sorts out which case you have, and a small fix may come under roof repair. If a fallen limb bent your gutters, our photographs and written scope are yours to send your insurer, and the claim stays yours.
Pennsylvania runs one building code for the whole state, the Uniform Construction Code. It adopts the 2021 International Residential Code with the state's changes, effective January 1, 2026 (34 Pa. Code § 403.21). Your town's permit office decides the permit steps. Our Pennsylvania roofing code guide lays out the statewide rules.
When gutter work comes with a roof replacement, the permit question is the roof's, and towns answer it differently:
Where the town asks for a permit on our work, we pull it. It is listed on the written scope, so you see it before you sign.
We do not print a price here, because gutter work varies house to house. These things set it:
Our free estimate lists each of these lines, so you can see which ones you could drop.
To start, use the free roof estimate page.
A brand name sells one kind of guard, usually fine mesh on a frame, with the maker's hardware. Whether it beats a plain guard depends on your trees, your roof pitch and the shape of your gutters. We compare kinds and fit on your house, and the estimate names the kind, the footage and the fastening.
Sometimes, and it depends on the house. Roof pitch, valleys, gutter size and the number of downspouts decide whether water overshoots, and a mesh clogged with pollen sheds water over the edge. A valley diverter or another downspout often fixes an overflowing corner. We test the finished run with water.
Install them if trees hang over your roof, your gutters clog every season or cleaning means a tall ladder. Hold off if the gutters sag, the fascia is soft or the roof is near the end of its life. We look first and tell you which case you are in.
It is worth it when a guard saves you repeated cleanings and keeps overflow away from your siding and foundation. It is not worth it on a house with few trees and a low roof. Guards also need an occasional brushing, and the estimate says so.
Usually the roof, because the edge metal, the first shingle course and the gutters all meet at the eave. If the roof has years left and the gutters or fascia are failing, gutters can go first. A roof inspection settles the order.
No. Ice dams come from heat escaping into the attic, which melts snow that refreezes at the eave. Air sealing, insulation and ventilation fix that. A guard keeps debris out of the gutter, but it does not change what happens under the snow.
Gutter guards across the Harrisburg-Carlisle, Pennsylvania metro. Each city has its own page with the permit rule and code edition that apply there:
Sources: Service life of a roof's first layer · Pennsylvania Uniform Construction Code edition, 34 Pa. Code § 403.21 · Ground snow load design figure · Harrisburg building permit application · Mechanicsburg reroof permit rule · New Cumberland roof replacement permit. Codes, programs and prices change; confirm the current rule with your city before you rely on it.
Free inspection, a written scope, and photos you keep either way.
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