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No more water stains spreading across your ceiling. No more buckets during rainstorms or ice melt dripping onto your floors. When your skylight is replaced correctly, you get a sealed, insulated, weatherproof installation that handles everything Long Island throws at it.
You also get better light without the energy loss. Modern skylights bring in up to five times more natural light than standard windows, which means you’re using less artificial lighting during the day. That’s real savings on your monthly electric bill, plus a brighter, more comfortable home.
And here’s what matters most: you’re done worrying. A properly installed skylight replacement means no more emergency calls, no more contractor band-aids, and no more wondering if the next storm is going to cause another mess. It’s handled.
We’ve been serving Suffolk County homeowners for over 10 years. We’re a family-owned business based right here on Long Island, and we’ve seen what coastal storms, freeze-thaw cycles, and heavy snow do to roofs and skylights in Greenlawn.
Most of the homes in this area were built between the 1940s and 1960s. That means a lot of skylights are original or close to it, and they weren’t built with the energy efficiency or durability standards we have today. We’ve replaced hundreds of them, and we know exactly what fails first and why.
We’re licensed, insured, and we price everything upfront. No surprises, no upselling once we’re on site. You’ll know what you’re paying before we start, and the work gets done on time.
First, we come out and inspect your skylight and the surrounding roof structure. We’re looking at the flashing, the seals, the interior framing, and whether there’s any water damage or rot that needs to be addressed before the new unit goes in.
Once we know what we’re working with, we give you a clear estimate. That includes the skylight itself, all materials, labor, interior work if needed, and any permits required by Suffolk County. You’ll know the full cost before anything moves forward.
On installation day, we remove the old skylight, repair or replace any damaged decking or framing, and install the new unit with proper flashing and weatherproofing designed for Long Island’s coastal climate. We seal everything from the outside, insulate and finish the interior shaft, and clean up completely when we’re done. You’re left with a skylight that works the way it should.
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A complete skylight replacement isn’t just swapping out the glass. It’s a full roof penetration that has to be sealed, insulated, and built to last in a climate that gets 27 to 30 inches of snow every winter, plus coastal storms and salt air year-round.
You’re getting a new energy-efficient skylight unit with multi-layered tempered glass, low-E coatings, and modern seals that actually hold up. We install new flashing that integrates with your existing roofing material, whether that’s asphalt shingles, metal, or tile. We also handle the interior work: insulating the shaft, preventing thermal bridging, and finishing the drywall so it looks clean and professional.
In Greenlawn, most homes have single-family layouts with 3 to 4 bedrooms, and skylights are common in master bathrooms, kitchens, and hallways. These are high-traffic areas where leaks cause immediate problems. That’s why we don’t cut corners on materials or installation. Everything is rated for coastal conditions, freeze-thaw cycles, and the kind of weather that stresses cheaper installations until they fail.
We also pull the necessary permits and handle inspections. You don’t have to deal with the town or worry about code compliance. That’s on us.
Most full skylight replacements in Greenlawn run between $2,000 and $5,300 depending on the size of the skylight, the type of unit you’re installing, and how much interior or exterior work is needed. If there’s rot in the roof decking or framing, that adds to the cost. If the interior shaft needs to be rebuilt or reinsulated, same thing.
The skylight unit itself is usually only a quarter to a third of the total cost. The rest is labor, flashing, weatherproofing, insulation, and finishing work. That’s where the quality shows up, and it’s also where a lot of cheaper jobs fall apart.
We give you an upfront estimate that includes everything. No surprises once we’re on the roof. You’ll know what you’re paying before we start, and that price doesn’t change unless you ask us to do something different.
If your skylight is over 15 years old, replacement is almost always the better move. Older skylights don’t have the energy-efficient glass or seal technology that modern units do, and the hardware degrades over time. You might fix the leak today, but you’ll be back to the same problem in a year or two.
Repairs make sense if the skylight is newer, the unit itself is still in good shape, and the problem is isolated to the flashing or a small seal failure. We can re-flash and reseal without replacing the whole thing, and that’ll cost you a few hundred dollars instead of a few thousand.
But if you’re seeing water stains, condensation between the panes, or visible cracks in the dome or glass, that’s a replacement. And if the skylight is original to a home built in the ’50s or ’60s, you’re way past the point where a repair makes financial sense. You’re just delaying the inevitable and risking more interior damage in the meantime.
Most residential skylight replacements take one to two days depending on the size of the skylight and whether there’s any structural work that needs to happen first. If we’re just pulling the old unit and installing a new one with no surprises, that’s usually a one-day job.
If we find rot in the decking or framing once we open it up, we’ll need to replace that before the new skylight goes in. That can add a few hours or push the job into a second day. Same thing if the interior shaft needs significant insulation work or drywall repair.
Weather can also be a factor. We’re not installing skylights in the rain or snow because we need to leave your roof open for part of the process. If the forecast looks bad, we’ll reschedule to a day when we can get it done right without risking water damage to your home.
Yes, if you’re replacing an old skylight with a modern energy-efficient unit. Older skylights leak air, lose heat in the winter, and let in too much heat in the summer. That forces your HVAC system to work harder, and you’re paying for it every month.
New skylights come with low-E glass coatings, insulated frames, and better seals. They let in natural light without the energy loss, which means you’re using less electricity for lighting during the day and less heating or cooling to compensate for a poorly insulated roof penetration. Most homeowners see a 10 to 15 percent reduction in monthly energy costs after replacing old skylights.
The other benefit is comfort. You won’t have cold drafts in the winter or hot spots in the summer near the skylight. The room stays more consistent, and your system doesn’t have to fight to keep up. That’s a better living environment and lower bills at the same time.
Yes, Suffolk County requires a building permit for skylight replacement because it involves structural work on your roof. The permit ensures the installation meets local building codes, which cover things like flashing, insulation, and weatherproofing standards.
We handle the permit process for you. That includes submitting the application, scheduling the inspection, and making sure everything passes. You don’t have to go to the town building department or deal with any of the paperwork. It’s built into the job.
Skipping the permit might seem like a way to save money, but it’s not worth the risk. If you ever sell your home, unpermitted work can kill a deal or force you to rip it out and redo it properly. And if there’s ever an insurance claim related to the skylight, they’ll ask for proof that it was installed to code. We do it right from the start so you don’t have to worry about it later.
VELUX is the most common recommendation for Long Island because their skylights are built for climates with heavy snow loads, coastal moisture, and freeze-thaw cycles. They’ve been around for decades, the warranty is solid, and replacement parts are easy to get if you ever need them.
That said, the brand matters less than the installation. A cheap skylight installed correctly will outlast an expensive one installed poorly. The flashing has to integrate with your roofing material, the seals have to be airtight, and the interior shaft has to be insulated properly. That’s where most leaks and energy problems come from, not the skylight itself.
We install VELUX and other quality brands depending on what makes sense for your roof and your budget. What we don’t do is install the bargain-bin units that fail in three years. You’re better off spending a little more upfront and getting something that lasts 20 years without problems.
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