Service area
Home Remodeling Contractor in Suffolk County, NY
For Suffolk County homeowners, MMA Construction & Remodeling plans kitchen, bath, basement and whole-house interior renovations, with flooring, drywall and painting as needed. Four in five units here are detached houses, most built from the 1950s through the 1970s, and permits come from the town or incorporated village covering the address, so we confirm that office before the scope is written.
- Mid-century ranches, capes and split-levels across the county
- Town or village building department confirmed for the exact address
- Hamlet and postal names checked against the office that issues permits
Services
Remodeling services in Suffolk County
Choose the project you have in mind. Every Suffolk County service page below looks at that project in a detached mid-century house, where the town or village sets the permit route.
- Kitchen remodeling · Suffolk County Kitchen remodeling for Suffolk County houses Mid-century kitchens replanned inside the existing walls
- Bathroom remodeling · Suffolk County Bathroom remodeling for Suffolk County homes Permits and plumbing filings through your town or village building office
- Whole-home renovation · Suffolk County Home remodeling in Suffolk County, planned as one interior project Ranch, cape and split-level interiors remodeled in one sequence
Also in Suffolk County
Process
How we run projects in Suffolk County
Written scope, written proposal, permits identified up front, and one project lead from start to finish.
Conversation
You describe the home and what you want to change. We ask about budget range and timing so expectations are clear early.
Site visit and scope
We look at the space, the structure of the house and any HOA, co-op or condo rules that apply, then write a scope of work. We confirm which town or village building department covers the exact address, and check the hamlet or postal name against the office that issues permits.
Design and selections
Layout, materials and fixtures are agreed in writing before work is priced in full.
Written proposal
A written price and schedule for the agreed scope. Permits and any approvals are identified at this stage.
Build
One project lead coordinates the trades and keeps you updated. Some regulated work may require appropriately licensed specialty contractors.
Walkthrough
We review the finished work with you and resolve anything outstanding.
Suffolk County
What shapes a remodel here
Mid-century houses with original rooms
About 55% of Suffolk County units were built between 1950 and 1979, and many ranches, capes and split-levels still have original kitchens and baths. Owners often ask about opening the wall between kitchen and living room. A licensed engineer or architect decides whether such a wall carries load; we do not take on structural work, so our layouts keep the existing walls in place. Because many of these houses were finished before 1978, any paid work that disturbs their paint falls under EPA lead-safe rules.
Town, village or hamlet: who issues the permit
Suffolk has no single building office for houses. Depending on the address, permits come from one of the ten towns or from an incorporated village with its own building department, and a mailing address does not settle which. The County Clerk codes Commack to both Huntington and Smithtown, Hauppauge to Islip and Smithtown, and Ronkonkoma to three towns, so two houses with the same community name can file with different offices. We confirm the department for the exact property first, because forms, inspections and records follow that office.
Lower levels, moisture and the shoreline
Below-grade space in a Suffolk house may be a full basement or a crawl space, and in either case moisture control comes before any finish choice. Coastal and bayfront addresses also need a FEMA flood-map lookup and a question to the town or village about local floodplain rules before ground-floor or basement work is scoped. Our site visit records where water shows up, so the scope deals with it before drywall and flooring go in. The basement finishing guide explains the order of decisions.
Local pages
Towns and villages in Suffolk County
Local evidence
Housing, permits and local rules in Suffolk County
Research notes with sources, for planning. Not a permit determination for any property.
What the housing stock looks like
| Measure | Share of housing units |
|---|---|
| Single-family detached | 80.5% |
| Single-family attached | 5.2% |
| Two-unit buildings | 2.2% |
| Built 1939 or earlier | 8.9% |
| Built 1950–1979 | 55.5% |
Four in five units are detached houses, and the 1950s–1970s building boom accounts for about 55% of units. Pre-1940 housing is much less common than in the boroughs.
What that means for a remodel
- Mid-century ranches, capes and splits: original kitchens and baths are often due for replacement, and opening a wall between kitchen and living room is a common request. Whether a wall is load-bearing is a question for a licensed engineer or architect, and structural work is outside our scope.
- Basements and crawl spaces: moisture control comes first. See basement remodeling.
- Older paint: many houses predate 1978, the cutoff for EPA lead-safe rules on paid work that disturbs paint.
Permits come from the town or village
Building permits for houses are handled locally, not by one county office. Depending on the address, the authority is one of the county's ten towns (Babylon, Brookhaven, East Hampton, Huntington, Islip, Riverhead, Shelter Island, Smithtown, Southampton and Southold) or an incorporated village with its own building department. Rules, forms and inspections differ between them, so check with the department that covers the property.
Home improvement contractors in Suffolk need a county license, and the county's consumer affairs office lets you search licensed contractors. See renovation permits in NYC vs Suffolk.
The ten towns and the villages inside them
Every address in Suffolk County is in one of the ten towns. Some addresses are also inside an incorporated village, which runs its own building process. The table lists the villages that Suffolk County's directory shows under each town. Treat it as a starting list: the directory is not dated, and at least one entry is out of date.
| Town | Villages listed by the county | Planning page on this site |
|---|---|---|
| Babylon | Amityville, Babylon, Lindenhurst | Town page |
| Brookhaven | Belle Terre, Bellport, Lake Grove, Mastic Beach (see note), Old Field, Patchogue, Poquott, Port Jefferson, Shoreham | Town page |
| East Hampton | East Hampton, Sag Harbor | None (research scope only) |
| Huntington | Asharoken, Huntington Bay, Lloyd Harbor, Northport | Town page |
| Islip | Brightwaters, Islandia, Ocean Beach, Saltaire | See Islip below |
| Riverhead | None listed | None (research scope only) |
| Shelter Island | Dering Harbor | None (research scope only) |
| Smithtown | Head of the Harbor, Nissequogue, Village of the Branch | Town page |
| Southampton | North Haven, Quogue, Sagaponack, Southampton, West Hampton Dunes, Westhampton Beach | None (research scope only) |
| Southold | Greenport | None (research scope only) |
Town, village, hamlet or postal name?
Four different kinds of place name show up in Suffolk addresses and searches, and only some of them tell you which building office covers a house:
- Town: one of the ten listed above. Outside incorporated villages, the town's building department is the usual starting point.
- Incorporated village: a separate municipality inside a town, with its own building process. The County Clerk's code table marks villages as "Inc." or in bold.
- Hamlet or community name: a place name such as Dix Hills, Kings Park or Selden that the County Clerk codes to a town but that is not an incorporated village.
- Postal name: the name in the mailing address. It is used for mail, and it does not decide which office covers the house.
Worked example. The County Clerk's district codes mark several community names with an asterisk meaning the area lies in more than one town. Commack is coded to Huntington and Smithtown; Hauppauge to Islip and Smithtown; Holbrook to Brookhaven and Islip; and Ronkonkoma to Brookhaven, Islip and Smithtown. Two houses that both say "Commack" could therefore sit in different towns, with different building departments, forms and records.
Dix Hills is coded by the County Clerk to the Town of Huntington only and is not marked as a village. For a Dix Hills house, start with the Huntington planning page, and still confirm the office for the exact address.
Islip: town or village?
Suffolk County lists four incorporated villages in the Town of Islip: Brightwaters, Islandia, Ocean Beach and Saltaire. The Village of Islandia's own site describes its building permits, inspections and certificates of occupancy. For an address outside those villages, confirm the route with the Town of Islip before scope is discussed.
The Town of Islip's Planning & Development Application Portal describes itself as the online application system for the Town of Islip. The town's building permit types include an "Interior Arrangement" type (the buildout of a shell building), and it gives notice that the updated NYS Uniform Code and State Energy Code became effective December 31, 2025. Hauppauge, Holbrook and Ronkonkoma are each coded partly to Islip (see the worked example above).
West Islip is one of the 17 hamlets on the Town of Islip's own list, which does not mark it as partly in another town. The Islip planning page covers it; a hamlet name still does not settle jurisdiction for an exact address.
Which towns have planning pages
Planning pages exist for five towns: Huntington, Smithtown, Babylon, Brookhaven and Islip. Each covers a different planning task. The other five towns have no page. Three incorporated villages also have pages, for houses inside the village only: Patchogue and Port Jefferson in the Town of Brookhaven, and Lindenhurst in the Town of Babylon. East Patchogue, North Patchogue, Port Jefferson Station and North Lindenhurst are not those villages. One cross-town hamlet also has a page: Commack, which sits in both Huntington and Smithtown.
East End towns: research only
Riverhead, Southampton, East Hampton, Southold and Shelter Island are in this site's research scope because the research area is Suffolk County as a whole. That is not an operating decision. No separate planning pages exist for them yet.
Flood zones
Look up the address on FEMA's Flood Map Service Center, and ask the town or village building department about any local floodplain rules. Coastal and bayfront properties are the ones to check most carefully before basement or ground-floor work.
Before you hire
Before you hire in Suffolk County
Whoever you hire, check these before you sign. They apply to us too.
- License: Suffolk County's Department of Consumer Affairs licenses home improvement contractors. Look a contractor up with the county's licensed-contractor search, which also shows complaints.
- Written scope and contract: list what is included and excluded, each allowance in dollars, the payment schedule, how changes are priced and approved, and who files the permits with your town or village building department.
- Insurance: ask for the contractor's certificate of insurance.
Permits
Who issues building permits
Building permits come from the town (Babylon, Brookhaven, East Hampton, Huntington, Islip, Riverhead, Shelter Island, Smithtown, Southampton and Southold) or the incorporated village that covers the address. The town list is taken from Suffolk County's own website and identifies the towns only; confirm the building department for each address. These are named as permitting authorities only. The URL is the county licensing office for contractor license checks, because there is no single county building-permit office.
Talk through your remodel in Suffolk County
Call or email us to talk it through and arrange a consultation.
Questions
Remodeling in Suffolk County: questions
Can one company coordinate the whole remodel instead of separate trades?
Do you work inside villages such as Patchogue, Port Jefferson or Lindenhurst?
Is Mastic Beach still its own village for permits?
Blog
Planning articles
- Whole-home planning · Draft Renovating a two-family home: separate the two project briefs Two units mean two sets of rooms, decisions and occupants. Writing them down separately, with a third list for what the units share, keeps the scope readable for everyone who prices or plans it.
- Whole-home planning · Draft How to prepare a useful renovation photo brief A short, organized set of photos and captions explains how you use a room and what you want answered. It starts a conversation; it is not a survey or a condition report.
Sources
- B25024 Units in Structure, Suffolk County, ACS 2024 1-year estimates, U.S. Census Bureau via Census Reporter (2025 (ACS 2024 1-year release)). Accessed 2026-11-02.
- B25034 Year Structure Built, Suffolk County, ACS 2024 1-year estimates, U.S. Census Bureau via Census Reporter (2025 (ACS 2024 1-year release)). Accessed 2026-11-02.
- Visiting Suffolk County, Suffolk County Government (undated (page footer © 2026)). Accessed 2026-11-02.
- Towns and Villages, Suffolk County Government (undated (page footer © 2026)). Accessed 2026-11-08.
- Town and District Codes, Suffolk County Clerk (undated (page footer © 2020)). Accessed 2026-11-02.
- Licensing and Consumer Protection, Suffolk County Department of Labor, Licensing and Consumer Affairs. Accessed 2026-11-02.
- FEMA Flood Map Service Center, Federal Emergency Management Agency. Accessed 2026-11-02.
- Lead Renovation, Repair and Painting Program Rules, U.S. Environmental Protection Agency. Accessed 2026-11-02.
- Permit Applications, Incorporated Village of Islandia. Accessed 2026-11-08.
- Towns and Villages (S3 re-read), Suffolk County Government (undated (page copyright 2026)). Accessed 2026-11-08.
- Dissolve a Village (table of dissolved villages), New York State Department of State. Accessed 2026-11-08.
- Town and District Codes (S3 re-read), Suffolk County Clerk (undated (footer copyright 2020)). Accessed 2026-11-08.
- Islip's Planning & Development Application Portal (Beta), Town of Islip (undated (notice refers to 2025-12-31 code update)). Accessed 2026-11-08.
- Town of Islip Building Division, Town of Islip (unknown). Accessed 2026-11-08.
- Licensing and Consumer Protection (S3 re-read), Suffolk County Department of Labor, Licensing and Consumer Affairs. Accessed 2026-11-08.
- 2027 Solid Waste & Recyclables Services Permit Application (Environmental Control document 153), Town of Islip, Department of Environmental Control (permit year 2027). Accessed 2026-11-07.
- Licensing, Suffolk County Department of Consumer Affairs. Accessed 2026-11-09.
- Search Licenses and Complaints, Suffolk County Department of Consumer Affairs. Accessed 2026-11-09.
Planning a remodel in Suffolk County?
Call or email us to talk it through and arrange a consultation.