Your attic is sitting there doing nothing. Maybe it’s storage you never touch, or just dead space collecting dust. A dormer changes that completely.
You get a room with headroom, natural light, and ventilation. Not a cramped crawl space—a place you’d actually want to spend time in. That could be a bedroom for a growing family, a quiet home office away from the chaos downstairs, or a bathroom that finally gives everyone their own space in the morning.
Here’s what matters: you’re not shrinking your yard, dealing with foundation work, or losing outdoor space your kids or dogs actually use. You’re building up, which works within Floral Park’s zoning restrictions and keeps your property footprint exactly where it is. The dormer adds value to your home while solving the space problem you’re dealing with right now.
We’ve been handling dormers, extensions, and full-scale renovations across Nassau County since the early 1980s. We’re not new to Floral Park, and we’re not new to the challenges Long Island homeowners face when they need more space but can’t move.
We know the zoning rules here. We know the permit process. And we know that most of the homes in this area—Cape Cods, colonials, ranches—are perfect candidates for dormer work. You’re not explaining your situation to someone who just Googled “Long Island building codes.” You’re talking to contractors who’ve done this hundreds of times, in your town, with the same restrictions you’re up against.
We answer the phone. We show up when we say we will. And we don’t leave your house looking like a construction zone while we’re working on it.
First, we come out and look at your house. Not every attic works for every type of dormer, so we’ll measure, check your roof structure, and talk through what you’re trying to accomplish. Bedroom? Bathroom? Office? That determines the size, the type of dormer, and whether we’re looking at a shed dormer or a gable dormer.
Once we agree on the plan, we handle the permits. Floral Park has specific requirements, and we’ve been through this process enough times that we know what the town needs to see. Permit delays happen, especially in Nassau County, so we get that paperwork moving early.
Then the actual construction starts. We open up the roof, frame the dormer, install windows, and tie everything into your existing roofline. Depending on the size, this usually takes anywhere from four to eight weeks. If you’re adding a bathroom, we’re also running plumbing. If it’s a bedroom, we’re making sure electrical and HVAC are handled so the room is actually livable year-round.
You’ll have access to the rest of your house the whole time. We’re not tearing apart your entire home—we’re working in one contained area, and we clean up every day before we leave.
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This isn’t just framing and drywall. You’re getting a finished room that matches the rest of your house.
That means insulation that actually works, so the room isn’t freezing in January or baking in July. It means windows that let in light but also open for ventilation. It means electrical outlets where you need them, and if you’re adding a bathroom, it means plumbing that’s done right the first time.
We also handle the exterior. Your new dormer gets siding, trim, and roofing that matches what’s already on your house. You’re not going to have a room that looks like an afterthought from the curb. In Floral Park, where most of the homes have a classic Long Island look, that matters. The dormer should look like it was always part of the house.
And because we’re working within your existing structure, we’re careful about load-bearing walls, roof pitch, and making sure everything is structurally sound. You’re not just getting more space—you’re getting space that’s built to last and built to code.
It depends on the size and what you’re putting inside it. A small dormer that’s really just adding light and a little headroom might run you $8,000 to $15,000. A full dormer that creates an entire bedroom or bathroom is going to be closer to $25,000 to $50,000 or more.
Long Island construction costs are higher than a lot of other places, and Floral Park is no exception. You’re paying for skilled labor, quality materials, and contractors who know how to work within local building codes. If someone quotes you way below that range, ask questions. Cheap dormer work usually means shortcuts, and shortcuts mean problems down the road—leaks, drafts, or worse.
The good news is that a well-built dormer adds real value to your home. You’re not just spending money—you’re investing in usable square footage that makes your house more functional and more valuable if you ever decide to sell.
Yes. Any structural work that changes your roofline or adds square footage requires a permit from the Village of Floral Park. That’s not optional, and it’s not something you want to skip.
The permit process involves submitting plans, getting approval from the building department, and scheduling inspections as the work progresses. It can take a few weeks to get everything approved, which is why we start that process early. Permit backlogs are common in Nassau County, and waiting until the last minute just delays your project.
Working without a permit might seem like a way to save time or money, but it’s a terrible idea. If you ever try to sell your house, unpermitted work will come up during the inspection, and you’ll either have to rip it out or go through the permit process retroactively—which is way more expensive and complicated. We handle permits as part of the job, so you don’t have to worry about it.
A shed dormer runs along the length of your roof and has a single sloped plane. It’s the most common type because it maximizes interior space—you get a lot of headroom and usable square footage. If you’re trying to turn your attic into a full bedroom or add a bathroom, a shed dormer usually makes the most sense.
A gable dormer is smaller and sticks out from the roof with a peaked front. It’s more about adding light and ventilation than creating a ton of extra space. Gable dormers look great on Cape Cod-style homes, which are all over Floral Park, but they don’t give you as much room to work with.
Which one you need depends on what you’re trying to do. If you want a functional room, go with a shed dormer. If you just want to brighten up the attic and add some character to your roofline, a gable dormer works. We’ll walk you through both options when we look at your house.
Plan on four to twelve weeks from start to finish, depending on the size of the dormer and whether we’re adding plumbing or electrical. A simple dormer that’s just framing, windows, and finish work can be done in a month. A larger project with a full bathroom or multiple rooms takes longer.
Permitting adds time on the front end. Once we submit plans to Floral Park, it can take two to four weeks to get approval, sometimes longer if there are questions or revisions. We don’t control that timeline, but we do stay on top of it so there aren’t unnecessary delays.
Weather can also slow things down, especially in winter. We’re opening up your roof during construction, so we need decent conditions to work safely and keep your house protected. If we hit a stretch of rain or snow, we might pause for a few days. That’s normal, and it’s better than rushing through bad weather and ending up with leaks or damage.
Not if it’s done right. A good dormer should look like it belongs—like it was part of the original design. That means matching your existing roofline, siding, trim, and windows so everything flows together.
In Floral Park, most homes are Cape Cods, colonials, or ranches, and dormers actually fit really well with those styles. A lot of Cape Cods already have dormers, so adding another one or expanding an existing one doesn’t look out of place at all. For colonials and ranches, a well-proportioned shed dormer can add character without looking like an awkward addition.
The key is working with someone who understands proportion and design, not just framing and roofing. We’ve built enough dormers in this area to know what works and what doesn’t. You’re not going to end up with something that sticks out in a bad way or hurts your curb appeal.
Absolutely. That’s one of the main reasons people add dormers—to create a functional bedroom, bathroom, or home office where there wasn’t one before. But it’s not as simple as just framing out the space. You need proper plumbing, electrical, heating, and ventilation to make the room livable.
For a bathroom, we’re running water lines and waste lines, which means connecting to your existing plumbing stack. We’re also adding ventilation so moisture doesn’t build up and cause mold or damage. For a bedroom, you need heating and cooling, which might mean extending your HVAC system or adding a mini-split unit. You also need egress—a window large enough to serve as an emergency exit, which is required by code.
All of that is doable, and we handle it as part of the project. The dormer isn’t just an empty shell—it’s a finished, fully functional room that meets building codes and actually works for your family. Whether it’s a guest bedroom, a master suite, or a second bathroom so your kids aren’t fighting every morning, we’ll make sure it’s done right.
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