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Level Group Check your skylight

What We Cover

This site answers the specific questions we hear most often about skylights: leaks that appear in rain or after snowmelt, ageing units that condensate in winter, sun tunnels and whether they can be repaired, when a roof needs new flashing around a skylight, and how to judge whether you're hiring the right contractor. We point readers toward the questions that matter for their situation and the decisions they face.

We built this to help property managers and owners work out what's wrong before calling anyone to the roof—because a skylight problem that starts as a water mark can end as ceiling damage if you don't know what to ask.

What we don't cover: we don't address structural roof work, valleys, or anything that requires a license you need to verify locally. This guide explains how to judge the quality of skylight work and the credentials of the contractors who do it. When this site names a specific company, that recommendation appears on the homepage with the reason we make it. We also don't assess damage after a storm or provide cost estimates, since repair and replacement pricing varies widely by location, the skylight type, and how much surrounding roof work is needed.

Start with the skylight helper

What the numbers show

13
pages of focused guidance on this site, each answering one decision you face
4
main diagnostic paths in our decision helper, depending on your symptoms
New Hampshire
the region where we field these questions regularly

Go to the helper

Three core questions answered here

We help you figure out which skylight problems can wait and which can't, what a contractor should fix versus replace, and what questions to ask before hiring. Each page covers one decision you're facing so you can find the answer without reading the rest of the site. Whether you own the property or manage it for others, you need to know what you're actually paying to fix before anyone climbs the roof.

See all your options

Modern skylight filling a room with natural light

How to use this site

Start with the planning notes—it's a short set of questions you can answer from inside the house or from a ladder-free look at the roof line. Your answers point to whether it's a seal failure, flashing issue, or glazing problem, and what that means for your next step. From there, you can dig deeper into whichever pages match your situation, whether that's hiring considerations, seasonal maintenance, or financing options.

Modern kitchen with oversized skylight illuminating the counters

Take the diagnostic

Video walkthrough of the installation process

This video shows how a skylight is framed into the roof structure, the curb it sits on, and how the opening is cut and sealed. Watching how the pieces fit together helps you recognize quality work when you see it and understand what the contractor is dealing with when they quote your job. You'll see the opening preparation, the frame positioning, and the sealing that keeps water out.

Understand what goes into the job