Milton's Construction has served Suffolk County homeowners and businesses for four decades — from the South Shore of Babylon and Islip to the North Fork vineyards of Riverhead, delivering licensed, design-build contracting from a single accountable team.
Suffolk County is one of the most diverse construction markets on the East Coast. Its housing stock ranges from postwar Cape Cods and split-levels in West Babylon and Bay Shore to sprawling waterfront colonials in Huntington and Northport, aging ranch homes in Brookhaven's interior hamlets, and historic farmhouses along the North Fork in Southold and Cutchogue. Every one of those property types presents its own structural realities, zoning classifications, and code requirements — and navigating all of them requires a contractor who has been operating in this county long enough to know each municipal building department by name. Milton's Construction has been that contractor since 1985.
Based in West Babylon at 1019 4th Street, we are not a national franchise or an out-of-town crew chasing storm-damage contracts. We are a locally rooted, licensed general contracting firm that has built, remodeled, and expanded properties across every township in Suffolk County: Babylon, Islip, Huntington, Smithtown, Brookhaven, Riverhead, Southampton, East Hampton, Shelter Island, and Southold. We understand the Suffolk County Department of Health Services' requirements for sanitary systems on properties that lack municipal sewer. We understand the Coastal Erosion Hazard Area regulations that affect waterfront additions near Fire Island, the Great South Bay, Long Island Sound, and Peconic Bay. When we say we know this area, we mean it in a way that only four decades of active permit-pulling can produce.
Our brand promise — 'If you can dream it, we can build it, from concept to keys' — is not a marketing slogan. It is a process commitment. Every project begins with a free in-home consultation and full preconstruction design. We generate complete architectural plans, review them with you before a single permit application is filed, and then build with one licensed crew from start to finish. No subcontractor shuffling. No one pointing fingers at someone else's work. One team, one contract, one phone number. That accountability matters in a county where permit delays and contractor disputes are among the most common homeowner complaints.
Whether you are planning a second-story addition over your existing ranch in Commack, a full kitchen and bathroom remodel in a Huntington Village colonial, a new modular home on a vacant lot in Calverton, or a ductless MRCOOL heat pump installation to replace failing window units in your Patchogue split-level, Milton's Construction has the licensing, the trade depth, and the local experience to handle it. We are licensed in New York, New Jersey, and Pennsylvania, fully insured, and we stand behind every project with a 100% on-time and 100% satisfaction guarantee.
Suffolk County's eleven towns each administer their own building departments, and each has developed its own permitting culture over decades of suburban growth and coastal regulation. In the Town of Babylon — where our West Babylon headquarters sits — we have filed hundreds of permit applications and understand the department's review timelines, standard inspection sequences, and common code interpretations. In the Town of Islip, covering communities from Bay Shore and Brentwood to East Islip and Oakdale, we regularly navigate the town's requirements for accessory structures, in-law suites, and waterfront setbacks near the Great South Bay and its barrier islands. In Huntington, where the housing stock skews toward larger older colonials and center-hall Tudors, our remodeling and addition work often involves updating knob-and-tube electrical systems, repointing or rebuilding chimneys, and extending footprints without disturbing mature landscaping. In Smithtown and Brookhaven — two of the largest townships by area in the entire state of New York — we serve the full spectrum from established neighborhoods in Saint James and Stony Brook to newer developments in Middle Island and Yaphank.
For homeowners on the East End, in Southampton, East Hampton, Riverhead, Southold, and Shelter Island, we bring the same licensed team with added sensitivity to the Historic District Architectural Review Board requirements that govern alterations in incorporated villages like Southampton Village, Greenport, and Sag Harbor. East End properties often sit on private well and septic systems, which means any addition or full renovation triggers Suffolk County Department of Health Services (SCDHS) review for sanitary system capacity. We coordinate directly with SCDHS on Article 6 and Article 4 applications so that septic compliance does not become a surprise mid-project. We also work alongside licensed engineers when a property's existing system needs upgrading to accommodate the expanded footprint — a reality for many North Fork farmhouses being converted or expanded.
Our new construction capabilities extend to both site-built residential and commercial builds. If you own a buildable lot in Riverhead, Calverton, or Manorville — where land parcels are still reasonably available — we can take your project from raw land through final certificate of occupancy. That includes site clearing and grading, foundation work, frame-to-finish carpentry, plumbing, HVAC, electrical coordination, insulation, drywall, finish carpentry, flooring, and final fixtures. We handle the full permit set and coordinate all inspections through to CO. Commercial clients in the Route 110 corridor, the Hauppauge Industrial Park area, and retail and office properties throughout the county have relied on us for tenant fit-out work, structural renovations, and ground-up small commercial construction.
The kitchen is the most-requested remodel project in Suffolk County, and for good reason. A large percentage of the county's housing stock was built between 1950 and 1980, during the great Long Island suburban build-out, and those original kitchens — galley layouts with drop ceilings, dated cabinetry, and undersized electrical service — simply no longer meet the way families use their homes today. Milton's Construction approaches every kitchen remodel as a design-build project, which means our designer and our builder are the same entity. We draw the plans, you review and approve them, and then we execute. There is no gap between what was designed and what gets built.
Common kitchen projects in Suffolk County include opening load-bearing walls between the kitchen and dining room to create an open-plan layout — a structural alteration that requires an engineered beam and a building permit in every town in the county. We handle the structural engineering coordination, pull the permit, and complete the full scope: cabinetry, countertops, tile backsplash, new flooring, recessed lighting, under-cabinet lighting, updated plumbing fixtures, and appliance installation. In older Islip and Babylon homes, this work frequently uncovers outdated knob-and-tube wiring or galvanized plumbing supply lines, and we address those safety issues as part of the overall project rather than leaving them for a later date.
Bathroom remodels in Suffolk County homes run the range from a straightforward tub-to-shower conversion in a 1960s ranch to a full gut-to-studs primary bath expansion in a Huntington colonial, with heated tile floors, a freestanding soaking tub, a frameless glass shower, and double vanities. We do both ends of that spectrum and everything between. Our licensed plumbers are on staff, which means there is no scheduling gap waiting for a plumbing subcontractor. For homeowners in older neighborhoods where the original plumbing stack is cast iron or lead, we assess the condition at the outset and include any necessary repipe in the project estimate. Suffolk County's building departments require separate plumbing permits for bathroom work that involves drain or supply relocation, and we pull those as a matter of standard practice.
Adding square footage to an existing home in Suffolk County is one of the most value-generating investments a homeowner can make, particularly in established neighborhoods where land costs make buying a larger home prohibitively expensive. A well-executed second-story addition in Bay Shore or a ground-floor in-law suite in Smithtown can add functional living space equivalent to buying a new property at a fraction of the cost. It can also allow multigenerational families — a significant demographic across Long Island — to share a property without sacrificing privacy.
Second-story additions are among the most structurally complex projects in residential construction. They require a thorough assessment of the existing foundation and first-floor framing to determine whether both can carry the additional load. In many postwar Suffolk County homes, the original foundation is a poured concrete perimeter with no interior bearing walls designed for a second story, and the first-floor joists are undersized by current code. Milton's Construction begins every second-story addition engagement with a structural evaluation. If reinforcement is needed, we design and execute it before a single new stud is set above the existing plate line. This protects the homeowner and produces a result that will pass every framing inspection without surprises.
Ground-floor additions — rear extensions, side additions, sunrooms, and four-season rooms — require setback compliance with the applicable town's zoning code. Rear yard setbacks in the Town of Babylon vary by zoning district, as they do in Islip and Brookhaven. We review the current survey and the applicable zoning schedule before designing any addition to ensure the footprint is approvable. In cases where a homeowner wants more square footage than the standard setbacks allow, we evaluate whether an area variance from the Zoning Board of Appeals is worth pursuing, and we have the history and documentation to support that process.
Critically, any addition that increases the number of bedrooms — or that adds a full bathroom where one did not exist — triggers a review by the Suffolk County Department of Health Services if the property is served by a private septic system. SCDHS reviews sanitary system adequacy based on lot size, soil percolation data, and the number of bedrooms the home will have after the addition. In many cases, an existing cesspool or conventional septic must be upgraded to a Suffolk County Innovative/Alternative (I/A) OWTS — an advanced nitrogen-reducing system that the county has been incentivizing since the adoption of its groundwater protection program. We coordinate this process with SCDHS-approved engineers and licensed septic installers so homeowners are not navigating that agency relationship alone.
Milton's Construction is an authorized MRCOOL distributor and installer, serving all of Suffolk County and extending through Nassau County, New York City boroughs, and into New Jersey, Connecticut, Massachusetts, Vermont, New Hampshire, and Pennsylvania. This is not a sideline service. HVAC installation and replacement has become one of the most requested services on Long Island as homeowners move away from aging oil-fired heating systems and seek year-round comfort without the cost and disruption of installing new ductwork.
MRCOOL's DC inverter ductless mini-split systems are particularly well suited to the Long Island housing stock. The vast majority of Cape Cods, ranches, and split-levels built in Suffolk County between 1950 and 1975 were constructed without central air conditioning and with steam or baseboard hot water heat. Adding forced-air ductwork to these homes is invasive, expensive, and often structurally impractical — it requires dropped ceilings, furred-out walls, and significant carpentry work. A ductless multi-zone system eliminates all of that. Individual air handlers are mounted on interior walls or ceilings in each zone, connected via a small refrigerant line set to an exterior condenser, and provide both cooling in summer and heating down to very low ambient outdoor temperatures in winter.
We install single-zone systems for individual rooms or additions, multi-zone systems that serve an entire house from one or two outdoor condensers, and universal air handler configurations for new construction where the architect has specified concealed ducted fan coil units. MRCOOL's DIY series has made the brand a household name in the residential market, but the commercial and higher-capacity residential systems require licensed HVAC installation — and that is where our team's certification and experience matters. We provide a complete installation including electrical service to the outdoor unit, refrigerant line set installation and pressure testing, condensate drainage, and startup commissioning.
For homeowners replacing an oil heating system, a heat pump installation can qualify for New York State Energy Research and Development Authority (NYSERDA) incentives as well as federal tax credits under current energy efficiency programs. We advise clients on available incentive programs during the consultation process so the financial picture is complete before a decision is made. A properly sized MRCOOL multi-zone heat pump system in a 2,000-square-foot Suffolk County home can provide efficient year-round comfort, reduce dependence on heating oil, and pay back installation cost through energy savings over a reasonable timeline.
For property owners with buildable lots in Suffolk County — whether in Riverhead, Calverton, Manorville, Westhampton, or Mastic — custom modular construction offers a faster path to a finished home without sacrificing quality or design flexibility. Milton's Construction offers a full range of MRCOOL-compatible, energy-efficient custom modular homes: ranches, two-story colonials, Cape Cods, raised ranches, split levels, chalet designs, and vacation-style homes. Every modular home we build is fully customizable in floor plan, exterior finish, and interior specification.
Modular construction is frequently misunderstood. These are not mobile homes or manufactured homes. A custom modular home is built to the same local building code as any site-built residence — in New York State, that means compliance with the Residential Code of New York State (RCNYS) — but the structural modules are fabricated in a climate-controlled factory environment and transported to the site for final assembly on a permanent foundation. Factory construction eliminates weather delays during framing, reduces material waste, and compresses the overall build timeline significantly compared to traditional stick framing. Importantly, custom modular homes qualify for the same conventional, FHA, and VA mortgage products as any other residential property.
On a Suffolk County lot, the process begins with site work: we evaluate the existing survey, confirm setbacks and zoning compliance, design and install the permanent foundation (full basement, crawlspace, or slab depending on soil conditions and client preference), coordinate with SCDHS for sanitary system permitting if the lot is not served by municipal sewer, and connect to water and utility services. The modular modules are then set by crane and the home is dried-in and finished by our crew. Typical timeline from permit approval to certificate of occupancy is considerably shorter than comparable site-built new construction, which matters in a market where construction costs and carrying costs are both significant.
Our design-build process applies fully to modular homes. We work with you through floor plan selection, exterior elevation, and interior finish specification — kitchen layout, bathroom tile, flooring, trim package, window selection — and we generate full permit drawings before breaking ground. There are no hidden upgrade costs or surprise allowances. The estimate you receive reflects the finished home you reviewed and approved in the preconstruction design phase. Financing is available through our partner Enhancify, allowing you to check your rate with no impact to your credit score and compare options from multiple lenders before committing.
Full-service residential and commercial construction, close to home.
Open-concept kitchens with custom cabinetry, premium countertops, and layouts built around how you live.
Learn moreSpa-like bathrooms — freestanding tubs, custom tile, walk-in showers and warm, relaxing finishes.
Learn moreGround-up builds and full structural work, managed end to end — foundation, framing and every finish.
Learn moreRoom additions, second stories, extensions and sunrooms that blend seamlessly with your existing home.
Learn moreFull preconstruction design — plans generated and reviewed with you before any construction begins.
Learn moreSafe, clean interior and structural demolition with permits, debris removal and site prep handled.
Learn moreLocal pages with Suffolk County permit, housing and project detail for your hometown.
South Shore village on the Great South Bay, threaded with canals south of Montauk Highway (Route 27A).
Lindenhurst contractorHistoric South Shore village wrapped around Argyle Lake and the channels leading to the Great South Bay.
Babylon Village contractorInland hamlet north of the Southern State Parkway, bordering Belmont Lake State Park.
North Babylon contractorSouth Shore village on the Nassau–Suffolk line, set on Amityville Creek and the Great South Bay.
Amityville contractorSouth Shore hamlet on the Great South Bay, with a grid of canals below Montauk Highway.
Copiague contractorInland hamlet north of the Southern State, anchored by the Tanger Outlets and the Deer Park LIRR station.
Deer Park contractorSouth Shore hamlet on the Great South Bay with the Fire Island ferry terminal and a revitalized Main Street.
Bay Shore contractorSouth Shore hamlet on the Great South Bay, between Bay Shore and East Islip.
Islip contractorSouth Shore village on the Patchogue River and Great South Bay, with the Fire Island–Davis Park ferry.
Patchogue contractorSouth Shore hamlet at the western edge of the Town of Islip, on the Great South Bay and bordering Babylon.
West Islip contractorA large inland hamlet north of the Southern State Parkway — one of the most populous communities in Suffolk County.
Brentwood contractorSouth Shore hamlet on the Great South Bay, just east of Islip hamlet, near the Connetquot River.
East Islip contractorA charming South Shore hamlet on the Great South Bay with a walkable Main Street and the ferries to Fire Island (Cherry Grove and the Pines).
Sayville contractorA large inland central-Suffolk hamlet, home to the federal courthouse and the Long Island Ducks ballpark.
Central Islip contractorAn inland central-Suffolk hamlet near Long Island MacArthur Airport.
Holbrook contractorAn inland central-Suffolk hamlet beside Long Island MacArthur Airport.
Bohemia contractorA South Shore hamlet on the Great South Bay and the Connetquot River.
Oakdale contractorA charming South Shore hamlet on the Great South Bay between Sayville and Blue Point.
Bayport contractor
“Perfect work and attention to detail!”
“Thank you for going the extra mile! My new home has become my oasis!”
“Would recommend your company to anyone looking to remodel! Thank you for making my house feel like home!”
“Milton's team gutted and rebuilt our kitchen and it came out better than we pictured. On time, on budget, and they cleaned up every single day. Highly recommend.”
“We added a second-story addition and they handled everything — permits, design, the whole build. Professional and honest from start to finish.”
“Our master bathroom is now a true spa. The tile work and the walk-in shower are gorgeous. Couldn't be happier with the craftsmanship.”
“Had Mr. Cool mini-splits installed throughout the house. Clean install, no ductwork mess, and our energy bills dropped. Great crew.”
“After four decades in business it shows — they knew exactly how to handle our older Long Island home and the permit process. Stress-free.”
“They built our modular home faster than we thought possible and the quality is fantastic. Milton walked us through every step.”
“Reliable, fair, and they actually answer the phone. They reframed and finished our basement beautifully. Will use them again.”
“Honest pricing and no surprises. Our kitchen and bath came out stunning and they respected our home the entire time.”
“From the first estimate to the final walkthrough, true professionals. Our addition matches the house perfectly — you'd never know it wasn't original.”
Yes. Milton's Construction is a fully licensed and insured general contractor operating in New York State, New Jersey, and Pennsylvania. We have been actively permitted and inspected in every town in Suffolk County — Babylon, Islip, Huntington, Smithtown, Brookhaven, Riverhead, Southampton, East Hampton, Shelter Island, and Southold — for four decades. New York State requires a Home Improvement Contractor registration for residential work, and we maintain all required state and county registrations in good standing.
It depends on the scope. Cosmetic work — replacing cabinets, countertops, and fixtures without moving plumbing or electrical — typically does not require a permit in most Suffolk County towns. However, any work that involves moving a drain, adding a circuit, removing a wall, or changing the footprint of a room requires a building permit and inspections. We assess permit requirements for every project at the outset and pull all necessary permits as part of our scope of work. We do not ask homeowners to pull their own permits — that is our job.
If your property is served by a private septic system and your addition will add a bedroom or a full bathroom, SCDHS review is required before the town building department will issue your addition permit. SCDHS evaluates whether your existing sanitary system has adequate capacity for the expanded home. In many cases, an upgrade to an Innovative/Alternative On-Site Wastewater Treatment System (I/A OWTS) is required. We coordinate directly with SCDHS and work with licensed engineers to handle this process, so you are not managing two separate regulatory agencies on your own.
Yes. We provide a free in-home consultation and preconstruction design review for all projects. This is not a quick walk-through and a ballpark number. We visit the property, discuss your goals in detail, assess existing conditions, and generate full plans that are reviewed with you before we produce a written estimate. Our estimates are detailed and transparent — line-item breakdowns, not single lump-sum figures. We also provide a realistic project timeline at the time of estimate, and we back our schedule with a 100% on-time guarantee.
Timeline depends heavily on the permitting process, which varies by town and project complexity. A straightforward rear addition in the Town of Babylon or Islip might receive a building permit in six to ten weeks from a complete application submission; a larger project in East Hampton or Southampton with Architectural Review Board involvement can take longer. Once permits are in hand, construction timelines for a typical ground-floor addition range from eight to fourteen weeks; a full second-story addition generally runs twelve to twenty weeks depending on scope and finish level. We provide a written timeline at the estimate stage and hold ourselves to it.
We are an authorized MRCOOL distributor and installer, and we specialize in ductless mini-split heat pump systems for exactly this situation. A multi-zone ductless system can heat and cool every room in a typical Suffolk County ranch, Cape Cod, or split-level without any ductwork, using individual wall-mounted or ceiling-cassette air handlers connected to one or two outdoor condensers. These systems provide both heating and cooling in a single installation. We also install geothermal heat pump systems for eligible properties and can coordinate with NYSERDA's heat pump incentive programs to reduce your net installation cost.
Yes. We build both site-built new construction and custom modular homes on buildable lots throughout Suffolk County. The process begins with a site evaluation — confirming zoning, setbacks, and whether the lot has access to municipal water and sewer or will require a private well and septic system through SCDHS. We handle the full permit set including site plan, architectural drawings, sanitary system approval, and all building department applications. Custom modular homes are a particularly efficient option for Suffolk County lots because factory construction compresses the build timeline and the finished product qualifies for the same mortgage products as any site-built home.
Get a free, no-obligation estimate for your project today.