Alexim Builders
“He pays attention to details that a home owner might miss and if things are not exactly as they should be he points that out, instead of hoping you don't notice, and makes it right.”
Best General Contractors in Southampton, NY
21 companies listed · all 21 in Southampton · 9 open weekends · 14 rated 4.5+
Data verified October 18, 2026
John Casablanca Construction
White Oak Builders Corp.
Rlw4 Builders
Hampton Modular LLC
“I used them build my home in East Hampton - good people and I can recommend them highly based on my positive experience working with Jon and his team”
Bulgin & Associates
Listed for homeowners in and around Southampton, NY, these 21 companies take on multi-trade work, from a single addition to a whole-floor renovation. What each one says about licensing, hours and the work it takes on comes from its own website; ratings and quotes come from public reviews.
Area overview: Southampton, NY
All 21 companies we list here are in Southampton itself. We have 22 companies in Southampton on file; this page shows the highest-rated 21. 14 of the companies on this page have a rating, from 4.8 to 5.0 across 50 reviews. 9 are open on Saturdays and 2 on Sundays. Domain records put 15 websites of the companies on this page at ten or more years old; the oldest dates from 1999. 1 gives free estimates. We have a website on file for 19 of the companies on this page; 17 publish a contact page and 13 list a public email. We count these figures across the companies on this page; hours and prices change, so confirm the details with the company before you book.
Hamptons Dune Builder
Merit Builder LLC
Koral Brothers
Elite Decks + Home Improvement
“Dan and his team did a fantastic job replacing our front and side porches and a very large rear deck with integrated lighting.”
Lux Development Group Inc.
“I could not be anymore pleased with their work as well as how they assisted me throughout the process and made the entire situation less stressful!”
Seascape Partners
Uptown Property Services
“He came on time, discussed the job, offered some advice and gave me a quote.”
PCH
“I am sooo proud to be homeowner now… Angela and I would like to personally thank PCH and their team for taking us through a very exciting journey in building our new home.”
Hhcm Consulting
Arch Group Building Company
2forces Contractors Inc
1640 Management
Hamptons Luxury Design + Construction
Windward Construction Management Corp
Jack Curto Development
Why these companies made our list
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