The Hamptons · Sag Harbor, New York
Smart Home, Lighting & AV in Sag Harbor.
Whaling-era houses in a village historic district, a board that reviews what the street sees, and a harbor that brings the yachts. Sag Harbor wants technology that disappears into an old house and reaches the dock.
Sag Harbor, Specifically
Old Houses, Hidden Systems.
Sag Harbor's village historic district covers the whaling-era core, and the Village's Historic Preservation and Architectural Review Board rules on what changes on the outside of a house. Inside, these are the oldest houses on the East End: plaster, timber, and small rooms that reward wireless lighting control, keypads that look like switches, and shades that fit the window.
On the water the job turns to the dock and the boat. The village sits between the Towns of Southampton and East Hampton, and a Sag Harbor house often comes with a yacht that wants the same network, the same control, and the same monitoring as the house; our marine division builds those too.
01 · Review
The Street Side
Exterior fixtures, cameras, and anything on the facade in the historic district go before the Historic Preservation and Architectural Review Board. We draw those pieces for the application and keep everything else inside.
02 · Old Houses
Wireless Where the Plaster Stays
Lutron's wireless keypads and dimmers replace the existing switches, Ketra lamps fit the existing fixtures, and battery shades fit the window, so a nineteenth-century house gets a modern system without opening its walls.
03 · Harbor
The House and the Boat
Wi-Fi that reaches the dock, cameras on the slip, and a boat that joins the house's network when it ties up. Our marine division integrates Crestron, Starlink, and audio on the yachts themselves.
At a Glance
Sag Harbor in brief.
- Historic review
- The Village of Sag Harbor's Historic Preservation and Architectural Review Board meets on exterior changes in the village; the village straddles the Towns of Southampton and East Hampton.
- Market
- Sag Harbor's median sale price was $2,200,000 in the second quarter of 2025 across 61 sales (Miller Samuel for Douglas Elliman), and a local report put the fourth-quarter 2025 median at $3.175 million.
- Electric service
- PSEG Long Island operates the Long Island Power Authority's transmission and distribution system, serving about 1.1 million customers across Nassau and Suffolk counties and the Rockaways.
- Internet
- Optimum advertises fiber-based internet in Sag Harbor at up to 1 gigabit and is the only wired provider across much of the Hamptons; Starlink works across the region.
- Licensing
- New York State licenses security and fire alarm installers through the Department of State, and Suffolk County reserves direct line-voltage connections to its Master Electricians.
Sources: Village of Sag Harbor; Sag Harbor, New York (Wikipedia); Miller Samuel for Douglas Elliman, Hamptons sales Q2 2025; McLauchlen, Sag Harbor and Southampton Village compared; PSEG, the PSEG family of companies; Optimum, Sag Harbor internet; HTE, internet providers in the Hamptons; New York State security and fire alarm installer license; Suffolk County electrical licensing code.
Reading for Sag Harbor
Guides and work nearby.
- Waterfront networking in Sag Harbor →
Wi-Fi to the dock and a boat that joins the house.
- Automation where the plaster stays closed →
- Monitoring a Hamptons house off-season →
- Marine: Crestron, Starlink, and audio for yachts →
- The handover checklist for a Hamptons estate →
- Waterfront Residence, Southampton, 2024 →
What We Install and Service
Every System. One Keypad.
Lighting & Shades
Lutron HomeWorks, Ketra and Rania light, Palladiom keypads, and shades that disappear into the ceiling.
Lighting →Whole-Home Control
Crestron and Lutron on one set of keypads and touchscreens, programmed the same way in every house you own.
Residential →Cinema & Music
Dedicated theaters, media rooms, and music in every room without a speaker in sight.
Residential →Network
Enterprise Wi-Fi and fiber sized for a large house, guest houses, and the far end of the lawn.
Networking →Security & Gate
Cameras, access control, gate intercom, and an alarm that a UL-listed central station answers.
Security →Outdoors
Landscape lighting and outdoor sound on one buried infrastructure, on the same keypad as the house.
Outdoor →Upgrades
Older Crestron and Lutron systems brought current, reusing the wiring already in the walls wherever possible.
Upgrade paths →Support
Monitoring, remote fixes, and priority response under one plan.
Cave Watch →Questions From Sag Harbor
Sag Harbor, Answered
Who installs Lutron and Crestron systems in Sag Harbor?+–
Cave Group does. We are a Crestron Elite Gold Partner and Lutron Gold Dealer with an office in Long Island City, our Hamptons work includes a Southampton waterfront residence completed in 2024, and our marine division integrates the yachts that tie up in the harbor.
Can an old Sag Harbor house get lighting control without opening the walls?+–
Usually, yes. Lutron's wireless dimmers and keypads replace the existing switches, Ketra lamps fit the existing fixtures, and motorized shades run on battery, so plaster and timber stay closed. What we check first is the electrical service, because the oldest houses on the East End often have the least capacity.
Does the village review cameras and outdoor lighting?+–
In the historic district, yes: the Historic Preservation and Architectural Review Board rules on exterior changes. We draw the exterior devices for the application and keep the equipment inside, where the board has no say.
Can the boat share the house's system?+–
Yes. Wi-Fi that reaches the dock, cameras on the slip, and a boat that joins the house's network when it ties up are standard for us, and our marine division builds the Crestron, Starlink, and audio systems on the yachts themselves.
What internet is available in Sag Harbor?+–
Across much of the East End, Optimum is the only wired provider and there is no Verizon Fios. We confirm what reaches the address, and we design the network with Starlink or a second carrier as automatic failover, so the cameras, the remote access, and the house itself survive a cut.
Nearby
Other Hamptons villages and hamlets we serve.
Start Here
Walk the House With Us.
Bring the drawings if the house is on paper, or the list of what no longer works if it is already built. We will tell you what we would do, in what order, what it would take, and what still has to run when nobody is home.
Start a Projector call · +1 (888) 712-2283 · [email protected]