# General Contractor in Long Island > Quedan Construction is a Long Island general contractor building offices, medical and dental practices, retail stores, restaurants and commercial kitchens across Nassau and Suffolk Counties — from Garden City and Great Neck to Melville, Hauppauge, Huntington and the Hamptons. - Location: Long Island, NY ## Long Island commercial construction, Nassau to the East End Long Island is one of the largest and most varied commercial markets in New York. Nassau County offers dense office, healthcare and retail centers in Garden City, Lake Success and Uniondale. Western Suffolk is home to the Route 110 corridor in Melville and the Hauppauge Industrial Park. Central Suffolk has growing healthcare and university districts around Stony Brook and transit-oriented development at Ronkonkoma. And the East End supports a high-end hospitality and retail economy from Riverhead to Montauk. Quedan Construction is a **Long Island general contractor** building **offices, medical and dental practices, retail stores, restaurants and commercial kitchens** across both Nassau and Suffolk Counties. For detailed Nassau coverage, see our [Nassau County general contractor](/new-york/nassau-county/) page. ### Offices and corporate campuses We build corporate headquarters, professional offices and regional facilities in Melville, Garden City, Uniondale, Hauppauge, Lake Success and Islandia — coordinating landlord standards, office-park rules and local permits. ### Healthcare across both counties Long Island's major health systems and private practices drive steady demand for medical construction. We build physician practices, dental offices, imaging suites and specialty clinics from Lake Success and New Hyde Park to Huntington, Stony Brook and Riverhead. ### Retail and hospitality From Roosevelt Field and Smith Haven Mall to village downtowns and East End boutiques, we build stores and restaurants to brand standards — with schedules that respect seasonal deadlines in the Hamptons and North Fork. ## Long Island permitting is local Outside New York City, there is no single Department of Buildings. On Long Island, permits come from the **town, city or incorporated village** where your project is located, and projects follow the **New York State Uniform Fire Prevention and Building Code**. In Suffolk, many sites are not connected to public sewers, so changes in use — particularly restaurants and medical offices — may require **Suffolk County Department of Health Services** wastewater review. We identify these requirements for your specific address before design begins. ## Local jurisdiction - **Building permits:** Issued by each town, city or incorporated village in Nassau and Suffolk Counties - **Building code:** New York State Uniform Fire Prevention and Building Code and NYS Energy Code - **Fire protection:** Nassau County Fire Marshal; town fire marshals in Suffolk - **Food service:** Nassau County Department of Health; Suffolk County Department of Health Services - **Wastewater (Suffolk):** Suffolk County Department of Health Services review for many sites without public sewers ## Long Island communities we serve ### Nassau County Garden City, Lake Success, Uniondale and the North and South Shore. See our Nassau County page for full coverage. Garden City, Mineola, Westbury, Uniondale, Hempstead, Great Neck, Manhasset, Port Washington, Lake Success, New Hyde Park, Hicksville, Jericho, Syosset, Rockville Centre, Valley Stream, Freeport, Long Beach, Massapequa. ### Western Suffolk Long Island's largest office and industrial corridors around Route 110, Melville and Hauppauge. Melville, Huntington, Huntington Station, Cold Spring Harbor, Commack, Dix Hills, Hauppauge, Smithtown, Kings Park, Babylon, Deer Park, Lindenhurst, Farmingdale, Amityville, West Babylon. ### Central Suffolk Healthcare, university, retail and transit-oriented development around Islip, Ronkonkoma and Stony Brook. Islandia, Islip, Bay Shore, Brentwood, Central Islip, Ronkonkoma, Holbrook, Sayville, Patchogue, Medford, Stony Brook, Port Jefferson, Setauket, Lake Grove, Selden. ### Eastern Suffolk & East End Hospitality, restaurants, retail and medical practices from Riverhead to the Hamptons and North Fork. Riverhead, Southold, Greenport, Mattituck, Westhampton Beach, Southampton, Hampton Bays, Bridgehampton, Sag Harbor, East Hampton, Amagansett, Montauk. ## Business districts in Long Island - **Route 110 & Melville:** Long Island's largest corporate office corridor, home to regional headquarters and professional firms in Class A office parks. - **Hauppauge Industrial Park:** One of the largest industrial parks in the Northeast, with offices, light manufacturing, distribution and food production. - **Garden City & Roosevelt Field:** Nassau's office and retail center, including one of the largest malls in the United States. - **Lake Success & New Hyde Park:** A dense medical office and healthcare corridor on the Queens–Nassau border. - **Stony Brook & Port Jefferson:** University and hospital-driven medical, research and retail development on Suffolk's North Shore. - **The Hamptons & East End:** High-end hospitality, restaurants and boutique retail with seasonal schedules and village-level approvals. ## Construction services in Long Island - [Office Construction](https://quedanconstruction.com/services/commercial-interiors/index.md): Corporate and professional offices in Melville, Garden City, Uniondale, Hauppauge and Lake Success. - [Medical & Dental Construction](https://quedanconstruction.com/services/medical-dental/index.md): Medical and dental practices in Lake Success, Stony Brook, Huntington, Garden City and across both counties. - [Retail Construction](https://quedanconstruction.com/services/retail/index.md): Mall tenant improvements at Roosevelt Field and Smith Haven, plus retail corridors across Long Island. - [Restaurant Construction](https://quedanconstruction.com/services/restaurant/index.md): Restaurants and hospitality venues from Huntington and Port Jefferson to the Hamptons. - [Residential Construction](https://quedanconstruction.com/services/residential/index.md): Whole-house renovations, additions and remodels across Nassau and Suffolk, from the North Shore to the Hamptons. - [Construction Management](https://quedanconstruction.com/services/construction-management/index.md): Owner's representation for healthcare systems, corporate campuses and multi-site Long Island programs. ## Building and permitting in Long Island ### Town and village permitting Long Island has no single building department. Permits are issued by the town, city or incorporated village where the project is located. Nassau has 3 towns and 2 cities; Suffolk has 10 towns — plus dozens of villages across both counties. ### New York State codes Long Island projects follow the New York State Uniform Fire Prevention and Building Code and NYS Energy Code, not the NYC Construction Codes. ### Suffolk wastewater review Many Suffolk sites are not connected to public sewers. Changes in use — especially restaurants and medical offices — may require Suffolk County Department of Health Services review of sanitary flow and wastewater systems. ### Seasonal East End schedules Hamptons and North Fork projects often must be completed before the summer season, and some villages restrict construction during peak months. We plan schedules around these windows. ## Frequently asked questions ### Which parts of Long Island do you serve? Both Nassau and Suffolk Counties — including Garden City, Great Neck, Lake Success, Uniondale, Melville, Huntington, Hauppauge, Smithtown, Islandia, Ronkonkoma, Stony Brook, Patchogue, Riverhead and the Hamptons. ### Do you have a page for Nassau County? Yes. Our Nassau County page covers the North Shore, Central Nassau and the South Shore in detail, including how permitting works across Nassau's towns, cities and villages. ### Who issues building permits on Long Island? Permits are issued by the town, city or incorporated village where the property is located. Each municipality has its own process, so we identify the correct jurisdiction for your address during preconstruction. ### Do restaurants in Suffolk County need health department review? Yes. Food service establishments in Suffolk are permitted by the Suffolk County Department of Health Services, and sites without public sewers may also need wastewater review for a change in use. ### Do you build offices in Melville? Yes. We build corporate and professional offices along the Route 110 corridor in Melville and in office parks throughout Long Island. ### Can you build in the Hamptons? Yes. We build restaurants, retail and hospitality spaces on the East End, with schedules planned around seasonal deadlines and village construction restrictions. --- Quedan Construction · (212) 555-0100 · info@quedanconstruction.com · Request a quote: https://quedanconstruction.com/contact/ Canonical: https://quedanconstruction.com/new-york/long-island/