You’re looking at homes in Nassau County pushing $685,000 and wondering if you should move or make your current house work. Moving means real estate commissions, closing costs, packing up your life, and probably ending up farther from the people and places you care about. A dormer addition gives you the extra bedroom, office, or living space you actually need without any of that.
Dormers bring natural light into dark attic spaces and create usable square footage where you currently have storage. You get more headroom, better ventilation, and a finished space that feels like part of your home—not a cramped afterthought.
The return makes sense too. Depending on how you finish the space, you’re looking at 50-75% ROI. In some cases, adding a well-designed dormer can increase your property value by up to 22%. Compare that to the cost and stress of moving, and the math gets pretty clear.
We’ve been serving homeowners across Nassau and Suffolk County for over 50 years. We’re licensed, insured, and family-owned. More than 60% of our work comes from referrals—people who’ve worked with us before or heard about us from someone who has.
What keeps customers calling back isn’t just the quality of the work. It’s that we answer the phone. We show up when we say we will. We keep the job site clean. And if something goes wrong—like a frozen pipe at 3 a.m. in the middle of a Long Island winter—we handle it.
We specialize in larger projects: dormers, kitchen and bathroom remodels, first-floor renovations, extensions. If you’re planning something that’s going to change how you live in your home, that’s the kind of work we do best.
First, we come out to look at your roof and attic. We’ll talk about what you’re trying to accomplish, what kind of dormer makes sense for your home, and what’s realistic given your roof’s condition and structure. If your roof is older or the framing needs reinforcement, we’ll tell you upfront.
Once we agree on a plan, we handle the permitting. Yes, dormers require building permits in Long Island, and the process can be confusing. We manage that so you don’t have to. Then we get to work.
Framing and exterior work typically takes 7 to 10 business days, weather depending. We’re cutting into your roof, so we move fast and make sure everything is sealed and watertight before we leave each day. After the structure is up, we finish the interior—insulation, drywall, electrical, flooring, whatever the space needs to be livable.
Throughout the project, you’ll see us on-site. We don’t just send a crew and disappear. We’re there managing the work, keeping things on schedule, and making sure it’s done right.
Ready to get started?
A dormer isn’t just a bump-out on your roof. It’s a structural addition that has to be built correctly or you’ll end up with leaks, drafts, and bigger problems down the road. We handle the full scope: framing, roofing, flashing, insulation, windows, siding to match your home, and interior finishing.
In East Massapequa and across Long Island, lot sizes and zoning restrictions often make it tough to expand outward. That’s why so many homeowners are going up instead. Dormers let you add square footage without eating into your yard or running into setback issues.
We also do dormer repairs. Because dormers stick out from the roofline, they take a beating from weather. If yours is leaking or showing signs of damage, we can assess it and fix it before it turns into a bigger issue. Proper flashing and sealing are critical, and that’s where a lot of contractors cut corners. We don’t.
The goal is to give you a space that works, looks good, and lasts. Whether that’s a shed dormer across the back of your house or a gable dormer on the front, we’ll build it to fit your home and your needs.
It depends on the size, style, and how you finish the interior. Standard construction runs between $150 and $210 per square foot. If you want premium finishes—higher-end flooring, custom trim, better fixtures—you’re looking at $210 to $270 per square foot.
A small dormer that adds a bathroom or expands a bedroom will cost less than a full shed dormer that opens up your entire attic. We’ll give you a clear estimate based on what you’re trying to do.
The other thing that affects cost is your roof. If we find structural issues or need to reinforce framing, that adds to the scope. We don’t hide that stuff—we tell you what we find and what it’ll take to do it right.
Yes. Any dormer addition in Nassau County requires a building permit. The process involves submitting plans, getting approval, and scheduling inspections as the work progresses.
It’s not optional. If you try to sell your home later and the dormer wasn’t permitted, it can hold up the sale or kill the deal entirely. Buyers and their attorneys will ask for proof that the work was done legally.
We handle the permit process as part of the project. We know what the town needs, how to submit everything correctly, and how to keep things moving. You don’t have to deal with it.
Framing and exterior work usually takes 7 to 10 business days. Interior finishing depends on what you’re doing with the space—if it’s a simple bedroom, it’s faster than a full bathroom with plumbing and tile.
Weather can slow things down, especially in winter. We’re opening up your roof, so if there’s heavy rain or snow in the forecast, we’ll pause until conditions are safe. We also run into delays if we find hidden damage or structural issues that need to be addressed before we can move forward.
We’ll give you a timeline upfront and keep you updated if anything changes. The goal is to get it done right, not just fast.
In most cases, yes. A well-designed dormer that adds functional living space can increase your property value by up to 22%, depending on the local market and how the space is finished. ROI typically falls between 50% and 75%.
In Nassau County, where median home prices are around $685,000 and climbing, adding usable square footage makes your home more competitive. Buyers want space, and they’re willing to pay for it—especially if it means they don’t have to do the work themselves.
The key is doing it right. A poorly built dormer that leaks or looks tacked on won’t help your value. But a professionally constructed addition that blends with your home and serves a real purpose? That’s an investment that pays off.
A shed dormer has a single sloped roof and runs horizontally along your roofline. It’s the most common type because it maximizes interior space and headroom. If you want to open up your entire attic, a shed dormer is usually the way to go.
A gable dormer has a peaked roof and projects out from the main roofline. It’s smaller and typically used to add light, ventilation, or a specific feature like a window seat. Gable dormers are often chosen for aesthetic reasons—they add character to the front of a home.
Both styles work. The right choice depends on your goals, your home’s architecture, and how much space you’re trying to gain. We’ll walk you through the options and help you figure out what makes sense.
Yes, dormers can leak—and they often do if they’re not built correctly. Because they stick out from your roof, they’re exposed to wind, rain, and snow from multiple angles. The weak points are usually around the flashing, where the dormer meets the main roof.
Proper flashing and sealing are everything. We use quality materials and take the time to install them right. That means step flashing along the sides, continuous flashing at the back, and making sure every seam is watertight before we close anything up.
We also pay attention to roof pitch and drainage. Water needs somewhere to go. If it pools or backs up, it’ll find a way in. A lot of contractors rush this part, and that’s when you get problems. We don’t.
Local Resources
Useful Links
Other Services we provide in East Massapequa
