Short answer: most single-light LED pool light replacements in the Phoenix area run $400–$800 in 2026, including the niche inspection and GFCI test. Here’s what actually drives that number.
What you’re paying for
A pool light replacement isn’t just a bulb swap. A proper job includes pulling the old fixture, inspecting the niche and conduit for water intrusion, confirming the bonding connection is intact, installing the new fixture, sealing it, and testing the GFCI protection on that circuit. The labor and the safety check are most of the cost — the fixture itself is often $150–$400.
Cost factors in Phoenix
- Fixture type: a white LED replacement is cheaper than a color-changing Pentair IntelliBrite or Hayward ColorLogic system.
- Niche and conduit condition: corroded niches or water in the conduit add labor.
- Number of lights: multi-light jobs get a better per-light rate.
- Incandescent-to-LED conversion: sometimes needs a transformer or wiring change.
Why LED is worth it
If you’re still running an incandescent pool light, switching to LED cuts that fixture’s energy use by roughly 75% and lasts far longer. For most Phoenix pool owners the upgrade pays for itself within two pool seasons — and color-changing LED is genuinely fun to have.
When to call instead of wait
A pool light that trips the GFCI, has visible water inside the lens, or won’t turn off is a safety issue around water. Don’t keep resetting the breaker — have it looked at. See our pool light replacement page or call (602) 403-2443 for a firm price.