Skylights

Wooden Skylight Window

Install · Replace · Leak Repair

Skylight Installers In Philadelphia


A skylight is a hole cut in your roof — only as good as the flashing around it. We’re roofers first, so we know how water is supposed to move around that opening.

Roofers First

Thermal Leak Detection

24-Hr Response

Free Estimates

Get A Free Skylight Assessment

Leaking? It’s usually the flashing, not the glass.


Free, no-obligation, itemized. We’ll tell you straight what it needs.

A Hole Cut In Your Roof

A Skylight is Only as Good
As Its Flashing


A skylight can turn a dark stairwell or a dim back bedroom into the best room in the house. But most people don’t hear this until it’s too late: it’s a hole cut in your roof. Get the flashing right and it brings in light for decades. Get it wrong and it becomes the exact spot where water gets in.

That’s why we install, replace, and repair skylights across Philadelphia and the surrounding areas. We’re a roofing contractor first. We know how water is supposed to move around that opening, because we do it on roofs every day.

The Details Around The Glass

Installation
& Replacement


The work lives and dies on the details around the glass, not the glass itself.

01

New Skylight Installation

Cutting the opening cleanly, framing it right, and tying the flashing into your existing roof so it sheds water like the rest of the roof does.

02

Skylight Replacement

Pulling an old, fogged, or leaking unit and setting a new one — usually with better glazing and insulation than what came out.

03

Flat Roof Skylights

Low-slope and flat roofs need a curb-mounted unit and a watertight membrane detail. We handle both the skylight and the roof it lands in.

04

Energy-Efficient Units

Modern insulated glazing that cuts heat loss in winter and glare in summer — a real upgrade over the single-pane bubbles on a lot of older Philadelphia homes.

Thermal-Drone Imaging

Usually Not The Skylight

Skylight Leak Repair
In Philadelphia


Skylights are one of the most common leak points on any roof. When water shows up on the ceiling near one, people assume the skylight failed. Usually it didn’t. Seals and glazing can go bad, sure — but far more often the leak is in the flashing where the skylight meets the roof, and that’s a roofing problem, not a glass problem.

Caulk over the top and the leak comes right back, because the water was getting in around the edges, under the flashing, where you can’t see it from inside.

Our drone reads temperature differences across the roof and shows where moisture is actually sitting under the surface. On a skylight leak, that’s the difference between fixing it once and chasing a wet stain around your ceiling all winter.

Active leak coming in? We don’t sit on it — 24-hour emergency response means a skylight pouring water during a storm gets handled, not put on next week’s list.

The Whole Ballgame

Why a Roofer Should
Install Your Skylight


You can buy a skylight at any home center. Installing it is the whole ballgame, because the unit is rarely what fails. The flashing, the seal to the roof deck, and the condition of the roof around the opening decide whether it leaks.

We flash it the way we flash everything else on a roof, and we check the roof around the opening first — because a new unit set into a tired roof just moves the leak a few feet. If your roof is near the end of its life, we’ll tell you straight, so you’re not paying to cut a fresh hole in a roof that needs replacing anyway.

If it were our own house, we’d want the person who understands the whole roof putting the hole in it — not someone who only knows the window part.

Why Homeowners Call Us

Why Garrison
For Skylights


GAF Certified Residential Roofing Contractor — flashing and roof detailing done to manufacturer standard.

In-house crews, no subcontractors — the people who show up work for us.

20+ years of local experience, including older rowhomes where skylights and flat roofs meet in tight spots.

Thermal-drone leak detection — we find the real source of a skylight leak instead of guessing.

Honest, no-obligation assessments — free, itemized estimates, with a certified Spanish-speaking team.

Skylights are part of our full exterior services lineup. While we’re up there we can handle any roof repair around the opening — and if the roof underneath is done, we’ll walk you through a roof replacement so your new skylight goes into a roof that’ll outlast it.

Three Different Jobs

What Skylight Work Costs


A simple reseal, a full unit replacement, and cutting a brand-new opening into a finished roof are three very different jobs — so an honest number means someone actually looking at yours first.

What we can promise: the estimate is free, it’s itemized, and there’s no obligation. You’ll know what the work costs and why before we start.

Garrison Roofing GAF Certified Residential Roofing Contractor certificate

4.2

Rated 4.2 out of 5 stars.

106 Five-Star Reviews

Across 141 Google reviews · GAF Certified · 20+ years in Philadelphia

GAF ID 1147683

PA #PA057955

Licensed & Insured

OSHA Compliant

No Subcontractors

Straight Answers

Frequently Asked Questions


Why do skylights leak?

Most skylight leaks aren’t the skylight at all. Seals and glazing do wear out, but the more common culprit is the flashing where the unit meets the roof, which lets water in around the edges when it fails. That’s why we treat a leaking skylight as a roofing problem and trace it to the real entry point with thermal imaging.

Can a skylight be repaired, or does it need full replacement?

It depends on what failed. If the flashing or a seal is the issue and the unit is sound, a repair usually holds. If the glazing is cracked, fogged between the panes, or the unit is worn out, replacement is the smarter money. We’ll inspect it and tell you honestly which one you’re looking at, instead of defaulting to the bigger job.

How much does skylight installation cost?

It depends on whether you’re replacing an existing unit or cutting a new opening, the type of skylight, and the condition of the roof around it. Rather than guess, we give you a free, itemized estimate after looking at the actual job, so the number reflects your roof and not an average.

Are skylights energy efficient in older Philadelphia homes?

Modern ones can be. Many skylights on older homes are single-pane or aging units that leak heat in winter and add glare in summer. An energy-efficient, insulated-glazing unit cuts that heat loss and makes the room more comfortable year-round — as long as it’s installed with proper flashing and insulation so you gain the light without a draft or a leak.

Free & No-Obligation

Get Your Free
Skylight Estimate


Thinking about adding a skylight, replacing a tired one, or chasing down a leak around the one you’ve got? Get an assessment from a roofer who understands the whole roof, not just the glass.

Get A Free Estimate


Straight prices, in writing — usually within 24 hours.