Labor Savings: Calculating Your Maintenance Savings In A Lighting Project Part 2

This blog was originally published December 20, 2020, and was updated August 25, 2026.

Labor savings can add significant value to an LED lighting retrofit. Traditional halogen, CFL, and fluorescent lamps require frequent replacements, while longer-lasting LED lamps reduce service calls, equipment use, and operational disruptions.

This article is Part 4 of our Calculating Your Savings and ROI on Any Lighting Project series. For a complete financial analysis, explore:

• Calculating Your Lighting-Only Energy Savings
• Calculating Your HVAC Energy Savings
• Calculating Your Maintenance Savings – Part 1
• Calculating Your ROI

Key Takeaways

LED lighting reduces maintenance labor because LED lamps typically last longer than traditional lighting technologies. Calculating these savings creates a more complete estimate of an LED retrofit’s total financial value.

How does an LED retrofit reduce lighting maintenance costs?

• Fewer lamp failures reduce replacement labor.
• A longer service life reduces the frequency of maintenance calls.
• Reduced maintenance frees employees to focus on other responsibilities.
• Fewer replacements may reduce contractor and equipment expenses.
• Annual savings increase with the size of the lighting portfolio.

Why Does LED Lighting Reduce Labor Costs?

Traditional halogen, CFL, and fluorescent lamps may have rated lifespans ranging from approximately 1,500 to 15,000 hours. Depending on operating hours, some lamps may require multiple replacements each year.

Each replacement involves more than changing a lamp. An employee or contractor must locate the correct product, retrieve safety equipment, access the fixture, complete the replacement, and dispose of the failed lamp. High or difficult-to-reach fixtures may also require lifts or specialized equipment.

LED lamps often have rated lifespans ranging from 35,000 to 100,000 hours. Their longer service life reduces replacement frequency and the labor required to maintain a facility’s lighting.

The following five steps explain how to calculate annual LED lighting labor savings.

Step 1: Collect the Required Information

Start with four values:

• Annual replacement frequency for each existing lamp
• Annual replacement frequency for each LED lamp
• Average time required to complete one replacement
• Hourly lighting maintenance labor rate

The replacement frequencies should come from the calculations completed in Calculating Your Maintenance Savings – Part 1.

This example uses the following values:

• Existing lamp replacements: 2.88 per year
• LED lamp replacements: 0.09 per year
• Time required per replacement: 8 minutes
• Maintenance labor rate: $45 per hour

Use your facility’s actual labor rates, replacement times, and operating conditions whenever possible.

Step 2: Calculate the Labor Cost per Lamp Replacement

Convert the replacement time from minutes to hours, then multiply it by the hourly labor rate.

Formula:

Minutes per replacement ÷ 60 × hourly labor rate = labor cost per replacement

Example:

8 minutes ÷ 60 × $45 = $6.00

In this example, the business spends $6 in labor every time a worker replaces one lamp.

This calculation may not capture every expense. For a more complete estimate, consider travel time, minimum contractor charges, lift rentals, safety setup, lamp disposal, and administrative costs.

Step 3: Calculate the Annual Labor Cost for Existing Lamps

Multiply the labor cost per replacement by the number of times each existing lamp requires replacement annually.

Formula:

Existing lamp replacements per year × labor cost per replacement = annual existing lamp labor cost

Example:

2.88 × $6.00 = $17.28

The business spends approximately $17.28 in annual replacement labor for each existing lamp.

This figure represents labor only. Add the cost of replacement lamps and other service-related expenses separately when calculating total maintenance costs.

Step 4: Calculate the Annual Labor Cost for LED Lamps

Use the same formula with the LED lamp’s annual replacement frequency.

Formula:

LED lamp replacements per year × labor cost per replacement = annual LED labor cost

Example:

0.09 × $6.00 = $0.54

The business spends approximately $0.54 in annual replacement labor for each LED lamp.

The difference reflects the longer rated life and lower replacement frequency of LED lighting.

Step 5: Calculate Annual LED Labor Savings

Subtract the annual LED labor cost from the annual labor cost for the existing lamp.

Formula:

Annual existing lamp labor cost − annual LED labor cost = annual labor savings per lamp

Example:

$17.28 − $0.54 = $16.74

The LED retrofit saves approximately $16.74 in labor per lamp each year.

To calculate facility-wide savings, multiply the per-lamp savings by the total number of lamps in the project.

For a facility with 1,000 lamps:

1,000 × $16.74 = $16,740 in annual labor savings

LED Labor Savings Calculation Example

Calculation	Existing Lamp	LED Lamp
Replacements per year	2.88	0.09
Time per replacement	8 minutes	8 minutes
Labor rate	$45 per hour	$45 per hour
Labor cost per replacement	$6.00	$6.00
Annual labor cost per lamp	$17.28	$0.54
Annual labor savings per LED lamp	—	$16.74
Annual savings for 1,000 lamps	—	$16,740

For a 1,000-lamp lighting portfolio, reducing annual labor costs from $17.28 to $0.54 per lamp could produce approximately $16,740 in annual labor savings.

This estimate covers replacement labor only. Savings from replacement materials, equipment, and contractor charges, as well as avoided operational disruptions, could increase the total financial benefit.

What Factors Can Increase LED Maintenance Savings?

Every facility has different operating and maintenance requirements. LED labor savings may be higher when:

• Fixtures operate for extended hours.
• Existing lamps have short rated lifespans.
• Employees need lifts or scaffolding to reach fixtures.
• A contractor performs each replacement.
• Facilities have high ceilings or difficult-to-access fixtures.
• Lamp failures interrupt operations or affect customer-facing areas.
• The lighting portfolio includes hundreds or thousands of lamps.

Facilities with these conditions should calculate labor, materials, equipment, and operational impacts instead of comparing lamp purchase prices alone.

Complete Your LED Retrofit Savings Analysis

LED lighting reduces more than electricity consumption. Longer lamp life decreases replacement frequency, lowers maintenance labor requirements, and allows employees to focus on more productive work.

Continue the Calculating Your Savings and ROI on Any Lighting Project series to complete your analysis:

• Calculate direct savings with Lighting-Only Energy Savings.
• Identify indirect savings with HVAC Energy Savings.
• Estimate product replacement costs with Maintenance Savings – Part 1.
• Combine your results with the Calculating Your ROI section.

For help evaluating your lighting portfolio, call Action Services Group at 610-558-9773, email [email protected], or schedule a call with a lighting specialist.