Drive through Brookhaven and the housing stock tells you how people live here: single-story ranches set back on wide lots, center-hall colonials with finished basements, and houses that have been quietly added onto for decades. Space is rarely the problem. The problem is that the interiors were built for the way people lived in 1965 or 1985, and they have not kept up. Closed-off kitchens, tired bathrooms, popcorn ceilings, carpet over oak and a basement that floods the idea of a second living area.
This page is for Brookhaven owners who want a genuine luxury renovation of the inside of the home, whether that means a full gut of a ranch, a rebuilt main floor, or a finished lower level that functions as a true apartment for family. We cover what the housing stock allows, how town permits shape the schedule, what 2026 costs look like, and how to compare bids.
In New York City the phrase usually means a co-op or condo unit. In Brookhaven it usually means something a little different, and it is worth being exact about it so that you can compare bids fairly.
Most of our Brookhaven conversations fall into three types:
The common thread is a full-scope renovation with high-end finishes: tile that is set over proper waterproofing, hardwood that is flat, paint that is smooth, and millwork that fits. For a deeper look at the unit-level version, see our guide to co-op and condo gut renovations in Brookhaven.
A mid-century ranch is the easiest house in Suffolk County to renovate well, and the hardest to renovate cheaply. Everything is on one level, so there are no stair or elevator complications, and an open plan is often achievable by removing a wall between the kitchen and living room. But that wall is frequently load-bearing, or carries ductwork and wiring. Beam sizing and temporary shoring are engineering questions, not carpentry guesses.
Ranches also tend to have slab or shallow crawl-space foundations. Floors are often glued to concrete, and older adhesives and tiles can contain asbestos. In many homes of that era we see vinyl tile that predates 1987, so a survey before demolition is a sensible precaution, not an upsell. The EPA explains the basics of asbestos in homes and renovation.
Colonials give you two stories, a formal layout and plenty of walls to work with. The luxury moves here are usually a rebuilt kitchen that opens to a family room, a primary suite with a full bath, and refinished or new hardwood throughout. Stairs, banisters and trim carry a lot of the look, so millwork matters as much as tile.
The large lots are the reason many Brookhaven owners stay and renovate rather than move. They also matter for access: a driveway that fits a dumpster, a material drop and a staging area makes demolition and delivery easier than on a tight city block. That practical advantage is part of why a Brookhaven gut can run smoother logistically than a comparable Manhattan apartment, even though the permit path differs.
A full interior renovation is a sequence of trades, and the order matters. Here is what the scope typically contains for a Brookhaven home.
Our kitchen and bath remodels in Brookhaven page goes deeper on the two rooms where most of the budget lands.
All numbers below are typical 2026 planning ranges for the New York metro area, not quotes. Building age, access, finishes, hazardous material and scope move prices, and a written, itemized quote governs the real number. The labor-and-material figures here are the same ones we use as starting points in conversations.
| Scope | Typical planning range |
|---|---|
| Cosmetic refresh (paint, floors, fixtures) | $100-$250 per sq ft |
| Mid renovation with kitchen and bath | $200-$400 per sq ft |
| Full gut renovation | $250-$500+ per sq ft |
| High-end or structural | $500-$1,000 per sq ft |
| Selective demolition and haul-away | $8-$30 per sq ft |
| Full bathroom renovation | $30,000-$60,000+ |
| Kitchen renovation | $25,000-$85,000+ |
| Hardwood installed | $12-$28 per sq ft |
| Tile floors installed | $20-$45 per sq ft |
Design, engineering and permit fees often add roughly 15-25% on top of construction. If you are weighing renovation against moving, our Renovation ROI Calculator and the 2026 NYC renovation cost guide show how the numbers behave, with the caveat that Long Island labor markets differ somewhat from the city's.
A full interior renovation touches every trade, and the cost of mistakes compounds. A handyman who hangs a few doors is not the same as a team that coordinates demolition, framing, plumbing, electrical, tile, flooring and paint under one schedule and one contract.
Consider what goes wrong when a whole-home project is run as a series of separate hires. The tile setter arrives before the plumber has finished, so the shower valve is in the wrong place. The floor goes down before the drywall dust is finished, so it needs sanding again. A wall comes out without an engineer's sign-off and the ceiling sags a year later. Each of these is a repair you pay for twice.
N.Y. Renovation Services is a licensed and insured, in-house design-and-build company. Design, drawings, permit paperwork, demolition, tile, flooring, paint and millwork run through one team, so there is one schedule and one point of accountability. Our contracts are detailed and itemized, with no hidden fees, and we explain what is included and what is not before you sign.
Three things matter most on a project of this size:
We also donate 5% of total project cost to a nonprofit of your choice, a pledge we are glad to explain on the first call.
New York City rules do not apply in Brookhaven. Building permits come from the Town of Brookhaven building department, and Suffolk County regulates home improvement contractors. We cover the general picture below, but you should verify the specifics with the town, because requirements change and each project is different. The county's own site, Suffolk County, is a good starting point for consumer and licensing questions.
If you plan to create a second dwelling unit inside the house, the permit question becomes a zoning and occupancy question. Municipalities across Long Island differ on whether accessory apartments are allowed, what size they can be, who must live in the main house, and what fire separation and egress are required. A separate kitchen is often the line that changes the answer. Ask the town first, get a design professional to confirm what the house can legally support, and only then budget for finishes.
Houses built before 1978 may contain lead paint, and contractors paid to disturb it must be EPA-certified and follow lead-safe practices. Our guide to the EPA's Renovation, Repair and Painting rule explains what to expect. Tile and stone cutting also generate silica dust that crews must control.
Our general walkthrough, Do I Need a Permit?, covers the NYC rules; use it as a framework, then confirm your own town's requirements.
Different houses produce different projects. These are generic examples of the kinds of jobs we scope, not client stories.
A single-story ranch with a closed kitchen, two small baths and wall-to-wall carpet. The plan is to open the kitchen to the living area, enlarge the primary bath, install hardwood throughout and repaint. The pivotal item is the wall between kitchen and living room: if it is load-bearing, a beam goes in, and that requires drawings and a permit. Flooring follows rough-ins, and paint comes last.
A two-story colonial where the main floor is fine but the upstairs bath is original. The owners want a spa-level primary bath, new tile with a curbless shower, and a rebuilt closet. Here the driver is waterproofing and floor-level changes, since a curbless shower needs the subfloor lowered or recessed. Tile removal, subfloor prep and membrane work add measurable cost, as covered in our flooring systems in Brookhaven overview.
A finished-basement conversion with a separate bath, kitchenette and bedroom for a parent. Moisture control, ceiling height, egress windows and the legal status of the unit decide the budget. A floor that sits on a slab needs a vapor strategy before any flooring goes down.
Luxury is often judged by the three surfaces you touch and see every day.
Tile. Standard porcelain or ceramic floors run roughly $20-$45 per square foot installed, and bathroom wall and shower tile roughly $30-$80 per square foot. Natural stone, large-format and mosaic tile cost more. Removal runs about $4-$12 per square foot, and a waterproofing membrane system adds roughly $3-$10 per square foot. The membrane is the part nobody sees and the part that decides whether the shower leaks in five years.
Flooring. Engineered or solid hardwood installs for roughly $12-$28 per square foot, refinishing about $4-$10, and luxury vinyl plank about $6-$15. Subfloor leveling adds $2-$8 per square foot. Whichever you choose, the subfloor must be flat and dry before it is covered.
Paint. A smooth finish depends on prep: patching, skim coating where needed ($2-$5 per square foot), priming and two finish coats. Our interior painting services in Brookhaven page covers colors, sheens and sequencing.
| Surface | Typical planning range | Main cost driver |
|---|---|---|
| Porcelain tile floor | $20-$45 per sq ft | Layout, substrate prep |
| Shower wall tile | $30-$80 per sq ft | Waterproofing, tile size |
| Engineered hardwood | $12-$28 per sq ft | Subfloor flatness |
| Luxury vinyl plank | $6-$15 per sq ft | Moisture and slab condition |
| Skim coating | $2-$5 per sq ft | Wall condition |
A realistic schedule has more phases than most owners expect. Construction is only one of them, and for a Brookhaven project the front end deserves as much attention as the demolition day.
Because Brookhaven sits outside our core service area, larger projects are taken by arrangement. That means we plan travel, crew scheduling and material deliveries up front instead of treating them as afterthoughts, and we never promise a start date we cannot hold. A full interior gut typically runs four to nine months from signed agreement to completion, and the first call will tell you where your project is likely to land.
Payment should follow progress, not run ahead of it. Our guide to fair renovation payment schedules explains what a reasonable draw schedule looks like, and it applies on Long Island too.
We take renovation projects in the Brookhaven area by arrangement.
The Town of Brookhaven is one of the largest municipalities on Long Island, and ZIP 11719 sits inside it. Housing here is dominated by ranches and colonials on larger lots, which means interior renovation is usually about modernizing layouts and finishes, not squeezing into tight footprints. Driveways, side yards and garages make staging easier, though private wells, septic systems and drainage on some parcels are worth raising at the planning stage. Always confirm zoning and permit requirements with the Town of Brookhaven before work starts.
If you are comparing nearby Long Island markets, our pages on Garden City, Hempstead and Long Beach describe very different housing and permit environments, and the Long Island renovation services hub ties them together.
You do not need final drawings to start. A call, a few photos and a rough idea of the rooms involved is enough for us to outline scope and likely ranges, and a site visit turns that into a written, itemized quote.
Here is what to have ready:
Be wary of any contractor who quotes a total after a five-minute phone call or insists on a large deposit before a contract is signed. Before you decide, read how to compare renovation bids and what a Home Improvement license covers, then ask us anything. When you are ready, the next step is a free, written renovation quote for your Brookhaven home.