Brentwood, CA · East Contra Costa
Pool Light Repair & LED Replacement in Brentwood, CA
A pool light that won't turn on, flickers, or trips the breaker is an underwater electrical problem, and it's one to leave to a professional. Often the fix is a new LED fixture that uses less power and lasts much longer.
Repairs & equipment, not weekly cleaning · No obligation
What the light is doing
Won't turn on
Bulb, GFCI or breaker, transformer, switch, or wiring.
Trips the GFCI
Water in the fixture or a wiring fault. Leave it off until checked.
Water inside the lens
A failed lens gasket. It needs resealing or replacement.
Loose in the niche
The fixture has come loose or the niche is damaged.
Safety first
Pool lights sit underwater and run on household or low-voltage power. If the light trips the GFCI, don't keep resetting it, and keep people out of the water until it's checked.
How a pool light comes out for service
Most pool lights sit in a niche in the wall with extra cord coiled behind them, so a technician can unscrew the fixture and lift it onto the deck without draining the pool. That's where the bulb, the lens gasket, and the cord connection get checked. If the cord is too short or the conduit is damaged, the job gets bigger. A light niche is also a common spot for leaks: if the water level stops at the light, see pool leak detection.
Converting to LED
- Longer life: HomeGuide notes LED pool lights can last 10–20 years, versus 1–3 for incandescent bulbs.
- Lower running cost and color options on many fixtures.
- Compatibility: the new fixture needs to match the niche size and the supply voltage (some pools use a low-voltage transformer).
- Controls: color LEDs may tie into the pool's automation system.
What pool light repair usually costs
Angi lists pool light repair at about $65–$150 per light. Replacing a fixture costs more: HomeGuide puts installed replacements at about $500–$1,700, with LED fixtures around $600–$1,500 (Angi and HomeGuide, 2026).
National ranges, not a quote; Bay Area jobs often land in the upper half. Full breakdown: pool repair costs in Brentwood.
Check any contractor, including one you find here
- Ask for the contractor's CSLB license number and look it up at cslb.ca.gov. Swimming pool contractors are generally licensed under the C-53 classification.
- Get the quote in writing, with the parts and the make and model of any new equipment.
- Don't pay large sums up front.
- For gas or electrical work on a pool heater or light, make sure the person doing it is qualified for that work.
This site is a free referral service, not a contractor. Your request goes to an independent local pool contractor, who gives the quote and does the work. How this works
Pool Light Repair: common questions
Why won't my pool light turn on?
Start with the switch, breaker, and GFCI. If those are fine, the bulb, fixture, transformer, or wiring is the likely cause. If the GFCI trips when the light is on, leave it off and call a professional.
Do you have to drain a pool to change the light?
Usually not. Most fixtures have extra cord coiled in the niche so they can be lifted onto the deck for service.
How much does it cost to replace a pool light?
About $500–$1,700 installed per fixture according to HomeGuide, with LEDs around $600–$1,500. Simple repairs cost less.
Related pool repairs
Pool Equipment Repair
Not sure what's broken on the pad? Valves, timers, automation, salt cells, plumbing, and full pad upgrades.
Pool Leak Detection
Losing more than evaporation? Find the leak in the skimmer, plumbing, light niche, or shell and fix it.
Pool Tile Repair
Loose, cracked, or missing waterline tile, calcium buildup, and damaged coping stones.
Talk to a local pool pro
Pool down, leaking, or won't heat?
Call now or send a 30-second request. You'll be connected with an independent local pool contractor for a quote.