// NYC · Master Licensed · All 5 Boroughs
Switch, Dimmer & Smart Switch Installation NYC
From a single failing toggle to whole-apartment smart lighting control — installed correctly for NYC’s pre-war wiring, including the no-neutral switch boxes that defeat DIY smart switch installs.
- Smart switches — Lutron Caseta, Leviton, Brilliant
- No-neutral solutions for pre-war apartments
- LED-compatible dimmers (no flicker, no buzz)
- 3-way & 4-way switch wiring
- Timers, occupancy & motion sensors
- Failing/old switch replacement
The no-neutral problem — why DIY smart switches fail in NYC
This is the single most common reason NYC smart switch installs go wrong, and it’s worth understanding before you buy anything.
Most smart switches — TP-Link Kasa, standard Leviton, GE/Cync, most of what’s on the shelf — require four wires at the switch box: line, load, neutral, and ground. The neutral powers the switch’s radio and processor even when the light is off.
But in most NYC apartments and brownstones wired before about 1990, switch loops were run with only two conductors — no neutral at the box. The smart switch physically cannot work. We get called weekly by people who bought a dozen smart switches, opened the first switch plate, and found two wires and a puzzle.
The solutions, in the order we usually recommend them:
- Lutron Caseta — engineered specifically for two-wire boxes. No neutral required, rock-solid proprietary RF (not WiFi, so it doesn’t fight your congested 2.4GHz band), excellent LED dimming, and full HomeKit/Alexa/Google integration through the bridge. Our default recommendation for pre-war NYC.
- Run a neutral — where your wiring is in metal conduit (common in NYC), pulling a neutral to the switch box is often practical without opening walls. This unlocks every smart switch platform.
- Smart relay modules — a relay at the fixture (where the neutral lives) with your existing switch controlling it. Good for non-dimming loads and unusual configurations.
We check before you buy. Part of every smart switch quote is opening a representative switch box and confirming exactly what’s in your walls — so the equipment you purchase is equipment that works.
What we install
Smart switches & dimmers
Lutron Caseta, Leviton Decora Smart, Brilliant panels. Configured, paired to your hub, and scene-programmed before we leave.
LED-compatible dimmers
Matched to your bulb type (forward/reverse phase) with low-end trim adjusted — smooth dimming from 100% to 5%, no flicker, no buzz.
3-way & 4-way switching
Control one light from two or three locations — stairs, halls, large rooms. Including smart 3-way setups with companion remotes.
Switch replacement
Failing toggles, crackling switches, paddle upgrades, and matching-finish replacements across the whole apartment.
Timers & sensors
Occupancy and vacancy sensors for closets, baths, and halls; timers for exterior and stairwell lighting.
New switch locations
Add a switch where there isn’t one — by the door you actually use. Wiring fished with minimal opening.
Fan speed controls
Proper fan-rated speed controls and smart fan switches — never light dimmers on fan motors (they hum and burn out).
Switched outlets
Half-hot receptacles controlled by a wall switch for lamps — or converting them back to always-on.
LED dimming done right — why your dimmer matters more than your bulbs
Flickering, buzzing, lights that won’t dim below 40%, or pop on at full brightness — these are dimmer problems, not bulb problems. Incandescent-era dimmers chop the electrical waveform in a way LED drivers can’t follow.
What correct LED dimming requires:
- Phase matching. Most LEDs dim best on reverse-phase (trailing-edge) or LED-rated forward-phase dimmers. We match the dimmer to your specific bulbs or fixtures.
- Load range. Old dimmers had 40W minimum loads; a pair of 9W LEDs falls below that and misbehaves. LED-rated dimmers are designed for low loads.
- Low-end trim. Quality dimmers (Lutron, Leviton) have an adjustable minimum level. We set it so your lights dim smoothly to a true low without dropout or flicker.
If you’re doing recessed lighting too, dimmer matching is built into our lighting installation service — fixture and control specified together, which is how it should be done.
Smart lighting for whole apartments — the practical path
The best smart lighting installs in NYC follow a pattern: start with the rooms you use at night (living room, bedroom, kitchen), standardize on one platform, and expand from there.
A typical whole-apartment Caseta installation — 8 to 14 switch locations — takes us one day, including bridge setup, app configuration, and scene programming (“movie,” “dinner,” “all off” at the door). Pricing is per-location, so you can phase it room by room. For deeper integration — automated schedules, sensors, HomeKit scenes tied to locks and thermostats — see our smart home wiring service.
Co-op and condo note: swapping switches at existing locations generally doesn’t need board approval. New switch locations with new wiring usually do. We prepare the documentation when it’s required.
Frequently asked questions
Standard switch replacement: $120–$160. LED-compatible dimmer: $140–$200. Smart switch (Lutron Caseta, Leviton) installed and configured: $150–$300 per location. 3-way conversions and new switch locations: $250–$350. Whole-apartment smart lighting is quoted per location count — phasing room by room is fine.
Almost certainly yes — with the right platform. Pre-1990 NYC switch boxes usually lack the neutral wire standard smart switches need. Lutron Caseta works without a neutral and is our default for pre-war buildings. Where your wiring runs in conduit, we can often pull a neutral instead, which opens up every platform. We verify your wiring before you buy equipment.
Your dimmer was designed for incandescent bulbs. The fix is an LED-rated dimmer phase-matched to your bulbs, with the low-end trim adjusted. After that, dimming is smooth from full brightness to a true low — no flicker, no buzz, no dead zone.
Yes — that’s 3-way switching (or 4-way for three locations). If there’s existing cable between the locations we rewire it; if not, smart switches with wireless companion remotes (like Lutron’s Pico) achieve the same result with zero new wiring — often the cleaner answer in plaster-walled buildings.
Not for replacing switches or dimmers at existing locations. New switch locations involving new wiring runs require a DOB permit, which we file when needed.
Yes — and this matters: standard light dimmers must never control fan motors (they cause humming and burn out windings). We install fan-rated speed controls or smart fan switches, and where the box has the conductors, separate fan and light onto independent switches.
What our customers say
“Bought 10 Kasa switches before discovering our 1938 building has no neutrals anywhere. MP Electric returned-shelf-stocked my mistake into a full Caseta setup in one day — every room dims perfectly and it all runs through HomeKit.”
“Every dimmer in our apartment buzzed and flickered after we switched to LEDs. They replaced six dimmers with properly matched ones and adjusted the trim on each. Silent, smooth dimming everywhere now.”
“Added a 3-way so we could turn off the hallway light from the bedroom end — using a Pico remote, no wall opening at all in our plaster hallway. Smart solution, fair price, in and out in two hours.”
Get a free switch & dimmer quote
Tell us the locations and what you want — smart control, smooth LED dimming, 3-way switching — and we’ll verify your wiring and quote per location, usually same day.