How much does pool light replacement cost?
Pool light replacement falls into three tiers: a bulb only, a full fixture, or an LED conversion. Each is priced as parts plus labor. The spread comes mostly from electrical scope (the cord, GFCI protection and junction box), not from the lamp itself.
Part prices give you a floor. One pool-supply catalog lists replacement pool-light bulbs from $31.79 to $378.99, including a 12V LED lamp at $127.99 and a Hayward CrystaLogic LED bulb at an MSRP of $259.99.[1] A separate LED guide lists retrofit bulbs at $40 to $150 and full LED fixtures at $250 to $900. It puts professional installation at $300 to $800 and a typical full LED fixture replacement total at $550 to $2,100.[2]
Price range
LED pool light costs from one guide
| Item | Low | High |
|---|---|---|
| Retrofit bulbs | $40 | $150 |
| Full LED fixtures | $250 | $900 |
| Professional installation | $300 | $800 |
| Full LED fixture replacement total | $550 | $2,100 |
Those are national retail and guide figures, not Phoenix quotes.
Phoenix-area pool companies' own websites, checked October 2026, show a diagnostic or service-call fee that most list at $85 to $95. Neither is a light quote, but they show how a visit gets built.
Two or more lights in one visit usually share the trip charge and setup time, so the per-light price tends to drop. If you only need a bulb, start with our guide to replacing a pool light bulb.
| Job | Typical parts | Labor and electrical scope | What can raise the price | Who may do it in Arizona |
|---|---|---|---|---|
| Bulb only | Lamp, new lens gasket | Open the fixture, swap the lamp, reseal, test | Hard-to-reach niche, brittle gasket | Often an owner or a pool service contractor, depending on the work |
| Full fixture replacement | Fixture, gasket, sometimes cord | Remove old unit, install new, test circuit | Short or damaged cord, lowering the water level | Pool contractor for in-pool work; electrical beyond the first disconnect needs the right license |
| LED conversion (retrofit lamp) | LED lamp, gasket | Swap lamp in existing housing, confirm voltage match | Transformer or controller incompatibility | Same scope as a bulb swap if no wiring changes |
| LED conversion (new fixture) | LED fixture, gasket, possibly cord | Install fixture, check transformer and voltage | Brand-specific niche fit, color controls | Pool contractor in-pool; electrical work by an appropriately licensed contractor |
| Cord, GFCI or junction box repair | Cord, GFCI breaker, box, fittings | Troubleshooting, wiring, testing | Corrosion, conduit access, trenching | Electrical scope: a licensed electrician or B-5/KA-5 contractor |
Choosing between a bulb, a full fixture or an LED conversion
The right tier depends on what has actually failed. Ask for a diagnosis before you authorize a replacement.
When a bulb is enough
A bulb works when the fixture, lens gasket and niche are sound. If the housing is healthy, that is usually the lowest-cost path.
When you need a full fixture
Replace the whole fixture for a cracked lens, water inside the housing, a corroded or brittle cord, or a gasket that no longer seals. In those cases a new bulb only delays the problem.
LED conversion: retrofit lamp or new fixture
A retrofit lamp reuses your housing. A new LED fixture replaces everything, often including the cord.
Side by side
Retrofit lamp versus new LED fixture
Retrofit lamp
- Reuses your existing housing
- Swap the lamp and confirm voltage match
- Same scope as a bulb swap if no wiring changes
New LED fixture
- Replaces everything, often including the cord
- Check transformer and voltage
- Must fit the existing niche
Either way, the lamp must match your existing voltage and transformer, so confirm compatibility with the manufacturer's guidance for your exact model before you buy.
LED lamps are generally rated for much longer life than incandescent bulbs, but check the lifespan on the manufacturer's spec sheet for your model. Whether the switch pays off depends on how often you run the light and what your housing needs.
What drives the high price of pool light fixtures
A pool fixture is not a household can light. It is sealed, submersible, rated for wet use, and built around a niche and cord.
Fit narrows your options too. The new fixture has to match the existing niche, so you cannot always shop freely across brands.
Labor, draining or lowering water, testing the circuit and sealing the niche all add up. That is why two quotes with the same fixture can differ widely.
Why wiring and electrical safety change the bill
Before a new light goes in, the cord, junction box and bonding should be inspected.
Pool lighting wiring is governed by NEC Article 680. Underwater luminaire circuits operating at 120V must be GFCI protected, wet-niche luminaires need an insulated copper equipment-grounding conductor of at least 12 AWG, and metal shells must be bonded.[4] NFPA also advises testing GFCIs per manufacturer instructions, typically monthly, and checking grounding connections for corrosion, looseness or rust.[3]
Common add-ons that raise a quote:
- Replacing a short or damaged cord
- A failed GFCI breaker or transformer
- A corroded junction box
- New wiring back to the equipment pad, which can add trenching in caliche soil
Some niches require lowering the water level, so ask whether that is included. A diagnostic visit through pool repair can sort out which of these you actually have.
Price factors
What raises a pool light quote
Cord
A short or damaged cord needs replacing
GFCI or transformer
A failed breaker or transformer adds parts and labor
Junction box
Corrosion can mean a new box
Wiring run
New wiring to the equipment pad can add trenching in caliche soil
Licensing rules for pool light electrical work in Arizona
The license class on the quote decides who may touch the wiring.
The Arizona Registrar of Contractors (ROC) R-6 and CR-6 classes cover pool service and repair, but exclude electrical work beyond the first disconnect. The B-5 class covers utilities from the point of service to the pool equipment. Wiring past the first disconnect needs the right licensed electrician or a B-5 or KA-5 contractor.
A low quote from a pool-service shop may leave out wiring, GFCI or junction box work. Ask who does the electrical portion and under which license. Our guide to R-6, B-5 or KA-5 licenses explains the classes.
Pro tip
Ask each contractor to itemize fixture, cord, GFCI and labor, and to name who does the electrical portion, so quotes compare like for like.
Check the license at the ROC Contractor Search (roc.az.gov/before-hire). Arizona requires a written contract for work over $1,000 (A.R.S. 32-1158), with license number, price and payment terms.
Unlicensed work is exempt only under $1,000, only if casual or minor, and only if no local permit is needed (A.R.S. 32-1121).
Before you accept a quote
- Does the license class match the electrical scope?
- Is the contract written, with license number, price and payments?
- Who pulls the permit?
- Are fixture, cord, GFCI and labor itemized?
- Do multiple lights share the trip charge?
Limits on DIY pool light replacement
You may be able to swap a bulb, and our guide to replacing a pool light bulb safely covers it. Mains-voltage work or a damaged cord is a different matter.
The ROC says permits are the owner's responsibility unless the contract says otherwise. Whether a light swap needs one in Phoenix, Mesa or Scottsdale is not something this page can settle. Call your city's permit office to ask.
Pool light replacement FAQ
Can you replace your own pool light?
A bulb swap, yes, if the fixture is sound. Wiring, GFCI or cord work should go to a licensed pro. See the bulb how-to.
Why are pool light fixtures so expensive?
They are sealed, wet-rated, and matched to a niche and cord. Labor and electrical checks add to the part.
How much is a new pool light?
Catalog lamps range from $31.79 to $378.99.[1] Retrofit bulbs run $40 to $150 and full LED fixtures $250 to $900, before installation.[2]
How long do LED pool lights typically last?
Check your model's manufacturer spec for rated life. It varies by product.
Do I need a licensed contractor to replace a pool light in Arizona?
Wiring beyond the first disconnect requires the right license. Confirm your job against the class scope on the ROC record, or book a pool repair diagnostic.
Is it worth switching to LED pool lights?
If your housing, cord and seal are healthy, a retrofit lamp is the low-cost route. If they are compromised, compare against a full fixture.
Questions
- EZ Test Pools. "Replacement Bulbs for Pool Lights." https://www.eztestpools.com/replacement-pool-light-bulbs/. Accessed October 17, 2026.
- Larry’s Pool. "Pool LED Lighting Guide: Types, Colors, and Best Options." https://larryspool.com/pool-led-lighting-guide-types-colors-and-best-options/. Accessed October 17, 2026.
- National Fire Protection Association. "Ensuring Code Compliance in Swimming Pools." https://www.nfpa.org/news-blogs-and-articles/blogs/2022/06/01/code-compliant-electrical-installation-the-key-to-swimmer-safety-and-a-secure-electrical-system. Accessed October 17, 2026.
- Mike Holt Enterprises. "Swimming Pools, Spas, Hot Tubs, and Fountains." https://www.mikeholt.com/instructor2/img/product/pdf/182ff360f3608ef4a26dcd9e7a0a6364.pdf. Accessed October 17, 2026.
