Pool lights fail. It’s not a question of if, it’s when.
When yours stops working, you need pool light replacement in Cypress, Houston, TX done right—not some weekend DIY project that ends with you in the dark or creating an electrical hazard.
We run the pool service company and work throughout the 77429 and 77433 zip codes, plus most of northwest Houston. Been at this long enough to see every way a light can quit, and every bad home repair attempt people try before calling.
Here’s what most homeowners miss until it’s too late: these are electrical fixtures sitting underwater. That’s inherently dangerous. Not sort of risky—actually deadly if you don’t know what you’re doing.
The most common call we get: “My pool light won’t turn on.”
Usually it’s one of these problems:
The bulb is dead. Simple enough, right? Except you can’t just unscrew it like a porch light. The entire fixture has to come out of the niche in your pool wall. And if water’s gotten inside? That’s not a bulb problem anymore—that’s a fixture replacement situation.
The fixture seal failed. This is the big one. Every pool light sits in a niche, and there’s supposed to be a watertight seal between the fixture and that niche. When that seal fails—and it will eventually—water gets inside the light housing. Once water’s in there with live electricity, you’re creating a potential electrocution hazard. We’ve seen fixtures completely filled with water. Homeowners sometimes don’t even notice until they pull the light out.
GFCI tripped or failed. Your pool light should be on a GFCI (Ground Fault Circuit Interrupter). That’s the outlet with the little test and reset buttons, usually somewhere near your pool equipment. If it keeps tripping, something’s wrong with the circuit or the light itself. Don’t just keep resetting it. That’s the safety device telling you there’s a problem.
Wiring issues. Sometimes the problem isn’t the light at all—it’s the wire running from your breaker box to the pool. Rodents chew through conduit. Ground shifts in our Texas clay soil and breaks connections. Corrosion happens, especially in our humid Houston climate.
The fixture is just old. If you’ve got original incandescent or halogen lights from when your pool was built 15-20 years ago, they’re probably at end of life even if they’re still working. The internal components degrade. The housing becomes brittle. Better to replace them proactively than deal with a failure that damages your pool niche.
We’re going to be blunt here. Water and electricity can kill you.
Every year, people die from electrical accidents in swimming pools. Not trying to scare you, but you need to understand what you’re dealing with. A pool light operates at either 120 volts or 12 volts. The 120-volt systems—which are common in older pools—carry enough current to cause cardiac arrest if something goes wrong.
That’s why we ALWAYS shut off power at the breaker before we even think about touching a pool light. Not at the switch. At the breaker. And we test to make sure it’s actually off.
We’ve had homeowners tell us they changed their own pool light and it was “easy.” Maybe they got lucky. But we’ve also seen the aftermath when someone didn’t get lucky—fried fixtures, damaged niches that cost thousands to repair, and in one case, a guy who got shocked badly enough to end up in the ER.
The National Electrical Code has specific requirements for pool lighting. There’s a reason for that. These aren’t suggestions.
If you take nothing else from this article: Do not attempt to replace your own pool light unless you are a licensed electrician with specific pool experience. Just don’t.
Here’s where we sound like we’re selling something, but honestly, if you’re replacing a pool light anyway, you should go LED.
Old incandescent pool lights pull 300-500 watts. Run that for 4 hours a night during summer, and you’re looking at 36-60 kWh per month just for one light. In Houston, with our electricity rates, that’s $15-25 per month. Per light. Some pools have two or three lights.
LED pool lights typically use 30-50 watts for the same brightness. That’s 85-90% less energy. Over a year, the energy savings alone can be $150-250 per light.
But the real benefit? Lifespan. A good LED pool light lasts 20,000-50,000 hours. That’s potentially 10-20 years if you run it 5 hours a night. Compare that to incandescent bulbs that last maybe 2,000 hours—you’d be replacing bulbs every few months with regular use.
And yeah, the color-changing features are nice. Most LED systems let you cycle through colors or set a specific color. Blue, green, red, purple, white—whatever. Some have preset light shows. It’s not necessary, but people like it. Makes the pool look good for parties.
The upfront cost is higher. A quality LED fixture runs $200-500 depending on brand and features. Installation labor is the same regardless of bulb type. But factor in the energy savings and the fact that you won’t need another replacement for probably a decade, and it pays for itself.
Older pools typically have 120-volt lighting systems. Newer pools usually have 12-volt systems with a transformer.
12-volt is inherently safer. Lower voltage means lower risk if something goes wrong. The National Electrical Code now requires 12-volt lighting for new pool installations, though existing 120-volt systems are grandfathered in.
When we replace an old 120-volt fixture, we often recommend converting to 12-volt LED. It requires installing a transformer—usually mounted near your pool equipment—but it brings your pool up to current safety standards.
The transformer itself costs $100-200. Installation adds to the labor, so it’s not free. But if you’re already paying for a fixture replacement, adding the transformer conversion makes sense from a safety standpoint.
Not everyone does it. Some people just want a direct replacement to save money. We get it. But we always present the option.
We work with all the major manufacturers. Here’s what actually holds up:
Pentair makes solid fixtures. Their IntelliBrite and GloBrite LED systems are industry standard. Reliable, good warranty support, easy to get parts. The color-changing features work well. We install a lot of these.
Hayward is the other big name. Their ColorLogic LED lights are comparable to Pentair. Maybe slightly less expensive. Also reliable.
Jandy (part of Zodiac) makes good lights too. Their LumiPlus system is fine, though we see them less often in Cypress.
J&J Electronics makes value-priced LED retrofits. If you want to upgrade to LED but don’t need all the bells and whistles, their ColorSplash line is a decent mid-range option.
The cheap off-brand stuff from Amazon or random pool supply websites? Hit or miss. Sometimes they work fine. Sometimes the seal fails in six months. Sometimes they’re not UL listed, which is a code violation. We don’t install them because we warranty our work, and we’re not warrantying something that costs $60 when a proper fixture costs $300 for good reasons.
When you call us for a pool light replacement, here’s what happens:
We schedule a time. This isn’t an emergency service unless your light is actively leaking or sparking. Usually we can get to you within a few days.
We show up with the right equipment. That means the replacement fixture or bulb if we already know what you need, plus tools, testing equipment, and safety gear.
Power goes off first. Every single time. We locate your pool breaker, shut it off, and verify it’s off with a tester. Non-negotiable.
We pull the fixture. Most modern pool lights are designed so you can remove a screw from the top of the light, pull the fixture out of its niche, and bring it up onto the deck. There’s usually enough cord to do this without draining the pool. Older lights sometimes require dropping the water level a few inches.
We assess what’s needed. If it’s just a bulb and the fixture looks good—gaskets intact, no corrosion, no water intrusion—we might just swap the bulb. If the fixture is compromised, the whole thing gets replaced. If there’s water in the housing, automatic replacement.
Installation happens. New fixture goes in with fresh gaskets. This is where experience matters. The gasket has to seat correctly, the lens has to seal tight, everything has to be torqued to spec. Too loose, and water gets in. Too tight, and you crack the lens or strip the threads. We use the manufacturer’s torque specs.
Testing. Power comes back on. Light comes on. We check all functions—dimming, colors if applicable. We verify the GFCI is working properly by testing it.
We clean up and document. You get a receipt showing what was done and what parts were used. If there are any concerns—like if we noticed your niche is starting to crack or your conduit is corroded—we tell you.
The whole process usually takes 45 minutes to an hour for a straightforward replacement. Longer if we’re doing a 12-volt conversion or if there are complications.
Corroded niches. The niche is the housing built into your pool wall where the light sits. After 20-30 years, especially with older metal niches, corrosion happens. Sometimes the niche is so deteriorated that we can’t get a good seal with a new fixture. In that case, you’re looking at a niche replacement, which requires a pool contractor to cut into the pool wall and install a new niche. That’s a much bigger job—$1,000-2,000 depending on pool type and access.
Conduit problems. The electrical wire runs from your breaker box through underground conduit to the pool light niche. If that conduit is cracked or crushed, or if the wire inside is damaged, we’ve got a wiring issue that goes beyond just replacing the light. Sometimes we can pull new wire through existing conduit. Sometimes the conduit itself needs to be replaced, which means trenching and potentially jackhammering.
GFCI issues. Sometimes the light is fine but the GFCI outlet is failing. GFCIs don’t last forever—they should be tested monthly and replaced every 10 years or so. A bad GFCI can trip constantly even with a good light, or worse, fail to trip when it should.
Wrong voltage. This happened last month. Homeowner ordered a 12-volt LED light online to save money. His pool had a 120-volt system. No transformer. He didn’t know any better. Obviously wouldn’t work. We had to get him the right fixture.
Missing parts. Some pool light replacements require specific mounting brackets, adapter plates, or trim rings depending on the niche type and light being installed. If you’ve got an old Swimquip niche and you’re installing a modern Pentair light, you might need an adapter. This is why we keep common adapters in the truck.
Prices vary based on what you need:
Simple bulb replacement (if the fixture is good and you just need a new LED bulb): $150-250 for service call and bulb, depending on bulb type.
Complete fixture replacement with a standard LED light: $400-600 typically. That includes the fixture, labor, and basic testing. Higher-end color-changing systems with more features push toward the upper end.
12-volt conversion adds $200-400 to the cost because of the transformer and additional wiring work.
Emergency or after-hours service costs more because, well, it’s after hours.
If you’ve got multiple lights failing, we can usually do them all at once and save you some money on the service call.
These prices are for Cypress and the northwest Houston area. Your costs might vary depending on where you are and who you hire.
Obviously if your light is dead, that’s a reason. But here are other situations where you shouldn’t wait:
Water inside the fixture. If you look at your pool light and see water in the housing, call immediately. Don’t swim until it’s addressed. That’s a shock hazard.
Flickering. Sometimes it’s just a loose connection, but flickering can indicate wiring problems or a failing fixture. Get it checked.
Frequent bulb burnouts. If you’re replacing incandescent bulbs every few months, something’s wrong with the fixture or the circuit. It shouldn’t happen that often.
Cracked or missing lens. The lens keeps water out. A cracked lens means water is probably getting in.
Planning to sell your house. A non-functional pool light will get flagged in a home inspection. Fix it before listing rather than negotiating over it later or having buyers freak out about “electrical problems.”
Your lights are 15+ years old. Even if they still work, they’re living on borrowed time. Proactive replacement lets you upgrade to LED and avoid a failure at an inconvenient time.
We know some of you are reading this thinking, “I can do this myself and save money.”
Maybe you can. If you’re an electrician. If you understand pool-specific electrical codes. If you have the right tools and testing equipment. If you’re comfortable working with live electrical systems near water.
But here’s what we’ve seen from DIY attempts:
The money you save doing it yourself evaporates when you have to call us to fix the damage. Or when your fixture fails six months later because it wasn’t sealed correctly. Or when you end up in the ER.
Pool light replacement isn’t like changing your oil. The risk-to-savings ratio doesn’t make sense for most homeowners.
We’re based in Cypress and work throughout the 77429 and 77433 zip codes. That covers Bridgeland, Towne Lake, Fairfield, Cypress Creek Lakes, Coles Crossing, and most of the Cypress area.
We also service parts of Jersey Village, Copperfield, and other nearby northwest Houston communities. Basically, if you’re within 20-30 minutes of central Cypress, we’ll come to you.
Why does local matter? Because we know the pools in this area. We know which builders used which niches. We know the common problems with pools from the early 2000s building boom. We know which electrical configurations are typical in different neighborhoods.
And we’re not going to take three weeks to schedule you because we’re based 40 miles away.
Call us if you’re weary of swimming in the dark, if your pool light isn’t working, if you can see water in the fixture, or if you just want to switch to LED.
We’ll evaluate your needs, provide you with a fair estimate (phone estimate; trip charge may be applicable to evaluate the pool lights on site), and do the task securely. No hidden fees, no runarounds, and no compromises on safety.
Cypress Pool Maintenance. We provide replacement pool lights in Houston and Cypress. We do that.
Monday 8 AM–5 PM
Tuesday 8 AM–5 PM
Wednesday 8 AM–5 PM
Thursday 8 AM–5 PM
Friday 8 AM–5 PM
Saturday: Closed
Sunday: Closed