What to Expect From a Commercial Lighting Audit—and What a Good LED Upgrade Proposal Should Include

A commercial lighting audit is an onsite evaluation of a facility’s existing lighting system, operating conditions, and lighting needs. It should document what is currently installed, identify performance and maintenance problems, and provide the information needed to design and price an appropriate LED lighting upgrade.

A good audit goes well beyond counting fixtures.

It should help answer four important questions:

1. What problems does the current lighting system have?
2. What should the upgraded system accomplish?
3. What equipment, controls, and installation work will be required?
4. What will the project cost, save, and involve operationally?

For a facility owner or manager, the audit is also the first opportunity to determine whether a lighting contractor understands the building—or is simply preparing a fixture quote.

What Is Included in a Commercial Lighting Audit?

The scope of a commercial lighting audit depends on the facility and the type of project being considered. At a minimum, the contractor should evaluate the existing lighting equipment, how and when the building is used, and any known problems with lighting quality or maintenance.

A commercial lighting audit may include:

• Fixture types and quantities
• Existing lamp and ballast types
• Fixture wattages
• Operating hours
• Mounting heights
• Existing lighting controls
• Measured light levels
• Dark areas, shadows, glare, or excessive brightness
• Failed or damaged fixtures
• Areas with recurring maintenance problems
• Emergency and egress lighting
• Electrical conditions that could affect the upgrade
• Ceiling heights and installation access
• Lift or equipment requirements
• Work-hour and scheduling restrictions
• Utility rate and incentive information

The audit should also account for how each area is actually used.

A warehouse aisle, classroom, office, parking lot, loading area, gymnasium, and manufacturing floor do not have the same lighting requirements. Replacing every existing fixture with the closest LED equivalent may reduce wattage, but it does not necessarily produce the best lighting system.

The Audit Should Begin With the Facility’s Goals

Before recommending fixtures, a contractor should understand what the owner or facilities team is trying to improve.

Common goals include:

• Reducing energy use
• Lowering lighting maintenance costs
• Correcting dark or uneven areas
• Improving visibility and safety
• Replacing obsolete lamps and ballasts
• Reducing complaints from employees or occupants
• Improving the appearance of a facility
• Adding lighting controls
• Supporting a renovation or operational change
• Improving exterior security lighting
• Preparing for utility incentives or capital planning

Not every project has the same priority.

One facility may be primarily concerned with energy savings. Another may have acceptable energy costs but spend too much time replacing failed lamps in high ceilings. A school may need better classroom light levels, while a warehouse may be experiencing dark aisles, glare, or inconsistent light on work surfaces.

The proposed lighting system should respond to the facility’s actual problems rather than applying the same solution everywhere.

What Happens During the Onsite Lighting Audit?

During the onsite portion of the audit, the contractor should inspect representative areas—or the complete facility, depending on the project—and document the existing system.

This typically involves identifying and counting fixtures, recording wattages, evaluating mounting conditions, reviewing controls, and discussing known issues with the facility team.

The contractor may also take light-level readings with a light meter. These readings help determine how much light is reaching the floor, work surface, playing surface, or other area being evaluated.

For projects in which light distribution is especially important, the audit may lead to a photometric lighting design.

Photometrics use software calculations to estimate how proposed fixtures will distribute light throughout a space. They can help identify:

• Average light levels
• Minimum and maximum light levels
• Dark areas
• Excessively bright areas
• Uniformity
• Fixture spacing
• Light distribution on specific surfaces

Photometrics may be especially helpful for warehouses, parking lots, sports facilities, exterior areas, large open buildings, and spaces where the layout or use has changed.

Why a One-for-One LED Replacement Is Not Always the Best Approach

A one-for-one replacement means replacing each existing fixture with one new LED fixture in approximately the same location.

That can be appropriate in some buildings, but the existing fixture count should not automatically determine the new design.

Modern LED fixtures distribute light differently from fluorescent, metal-halide, high-pressure sodium, and other older lighting technologies. Depending on the space, a properly designed system may use a different lumen output, beam distribution, fixture location, or number of fixtures.

In other cases, keeping the existing layout may be the most practical and cost-effective answer.

The correct approach depends on factors such as:

• Existing light levels
• Required light levels
• Ceiling and mounting height
• Fixture spacing
• Room dimensions
• Surface reflectance
• Tasks performed in the area
• Shelving, equipment, and obstructions
• Glare considerations
• Emergency-lighting requirements
• Installation cost
• Condition of the existing fixtures

A responsible contractor should be able to explain why a particular fixture and layout are being recommended.

“LED” by itself is not a lighting design.

What Should a Commercial LED Lighting Proposal Include?

A good commercial LED lighting proposal should clearly describe what the contractor has evaluated, what is being recommended, and what is included in the price.

At a minimum, the proposal should contain the following information.

1. A Clear Description of the Project Scope

The proposal should identify the areas included in the project and the work that will be completed.

This may include:

• Removal or modification of existing fixtures
• Installation of new LED fixtures or retrofit components
• Installation of sensors or lighting controls
• Wiring or electrical modifications
• Emergency-lighting work
• Fixture relocation
• Aiming or adjustment
• Programming and commissioning
• Disposal or recycling of removed materials

The proposal should also clearly identify any areas or work that are not included.

2. Existing and Proposed Lighting Information

The proposal should provide enough information to understand the difference between the existing and proposed systems.

Depending on the project, this may include:

• Existing fixture type
• Existing fixture quantity
• Existing wattage
• Proposed fixture type
• Proposed fixture quantity
• Proposed wattage
• Expected light output
• Color temperature
• Color-rendering information
• Controls being added
• Product specifications or submittals

The owner should not have to rely on a description such as “replace existing lights with LEDs” without knowing what equipment is being proposed.

3. Lighting-Performance Information

The proposal should explain how the new system is expected to perform.

For straightforward projects, a written explanation and fixture specifications may be sufficient. For larger or more demanding applications, photometric calculations may be appropriate.

The proposal should address any stated concerns involving:

• Light levels
• Uniformity
• Glare
• Dark areas
• Visibility
• Color appearance
• Exterior spill light
• Task-specific lighting needs

Energy savings are important, but the facility still has to function properly under the new lights.

4. Energy and Cost-Savings Estimates

A commercial LED proposal may include estimated energy savings based on the reduction in connected wattage, estimated operating hours, controls, and current utility costs.

The calculation should identify the assumptions being used.

For example, operating a facility 24 hours a day produces a different savings calculation from operating it eight hours a day, five days a week. Occupancy sensors may also produce additional savings, but the result depends on how frequently each area is occupied.

The proposal may include:

• Existing annual energy use
• Proposed annual energy use
• Estimated annual kilowatt-hour reduction
• Estimated annual utility-cost reduction
• Estimated maintenance savings
• Simple payback
• Available utility incentives

These figures are estimates, not guarantees. Their usefulness depends on the accuracy of the fixture wattages, operating hours, utility rates, maintenance history, and other project assumptions.

5. Lighting Controls

The proposal should state whether controls are included and how they will operate.

Depending on the facility, controls may include:

• Occupancy sensors
• Vacancy sensors
• Daylight harvesting
• Scheduling
• Dimming
• Zone controls
• Exterior photocells
• Networked lighting controls
• Central or remote system management

The proposal should also clarify who will program, test, and commission the controls.

Controls that are installed but not properly configured can create frustration for building occupants and prevent the facility from receiving the full benefit of the system.

6. Installation and Scheduling Requirements

The proposal should explain how the work will be completed in an operating facility.

Important considerations may include:

• Normal versus after-hours installation
• Night or weekend work
• Phased installation
• Temporary shutdowns
• Access to occupied areas
• Lift requirements
• Furniture or equipment relocation
• Coordination with facility personnel
• Security and badging requirements
• Protection of finished surfaces
• Cleanup
• Storage and staging

The lowest installation price may not be the best value if the work interferes with operations, creates safety problems, or leaves important responsibilities undefined.

7. Utility Incentives and Application Responsibilities

Some commercial LED lighting and controls projects may qualify for utility incentives.

The proposal should explain:

• Whether potential incentives have been evaluated
• Whether preapproval is required
• Who will prepare and submit the application
• Who will provide product and savings documentation
• Whether inspections are required
• How the incentive is reflected in the project price
• Who receives the incentive payment

Utility programs, eligibility requirements, and incentive amounts can change. They should be confirmed before equipment is ordered or installation begins.

8. Product Warranties and Installation Warranty

The proposal should distinguish between the manufacturer’s product warranty and the contractor’s installation warranty.

It should identify:

• Product-warranty term
• What components are covered
• Labor coverage, if any
• Contractor workmanship warranty
• Warranty claim process
• Responsibility for replacement labor
• Any required product registration

A long product warranty is not as useful if the owner does not know who will handle a failure or whether the labor to replace the product is covered.

9. Testing, Commissioning, and Training

The project should not be considered complete simply because the fixtures turn on.

Final project activities may include:

• Testing the lighting system
• Confirming control operation
• Adjusting sensor settings
• Programming schedules
• Aiming exterior or sports lighting
• Verifying light levels
• Training facility personnel
• Providing operating instructions
• Delivering warranty and product documentation
• Correcting punch-list items

The proposal should explain which of these services are included.

How Should Facility Managers Compare Commercial Lighting Proposals?

Commercial lighting proposals should not be compared on total price alone.

Two contractors may propose projects with similar fixture counts but very different equipment, controls, installation plans, warranties, and expected performance.

When comparing proposals, ask the following questions:

Are the contractors proposing comparable light levels?

A less expensive proposal may use lower-output fixtures, omit areas, or fail to address uniformity and dark spots.

Are the proposed products comparable?

Compare the manufacturer, fixture specifications, expected useful life, driver, warranty, color temperature, color rendering, and suitability for the environment.

Fixtures used in a conditioned office may not be appropriate for a hot warehouse, washdown area, exterior canopy, gymnasium, or corrosive environment.

Are lighting controls included?

One proposal may include occupancy sensors, scheduling, or networked controls while another includes fixtures only.

Is the electrical work fully included?

Determine whether the contractor has included required wiring, disconnects, emergency circuits, panel work, controls integration, or correction of known electrical conditions.

Are lifts, access equipment, permits, and disposal included?

These costs can materially affect the final project price.

Does the installation plan accommodate facility operations?

A proposal completed during normal operating hours is not equivalent to one that includes nights, weekends, phasing, or extensive coordination.

Are photometrics included where they are needed?

For spaces where light levels and uniformity are critical, a fixture schedule alone may not provide enough information.

Are utility incentives handled properly?

Confirm that each contractor is using the same incentive assumptions and that the required application work is included.

Are exclusions clearly stated?

A detailed proposal should identify what is not included, not leave those items to be discovered after the project begins.

Warning Signs in a Commercial Lighting Proposal

A proposal deserves closer review when it:

• Provides only a fixture quantity and total price
• Does not identify the proposed products
• Assumes every fixture should be replaced one-for-one without explanation
• Promises savings without showing the assumptions
• Does not address light levels or lighting quality
• Ignores lighting controls
• Does not explain how work will be completed around operations
• Leaves lift, disposal, permit, or electrical costs unclear
• Relies on utility incentives that have not been verified
• Does not identify warranties
• Does not include commissioning or final system testing
• Has significant differences between the onsite discussion and the written scope

A shorter proposal is not automatically a poor proposal. However, the scope should still be clear enough for the owner to understand exactly what is being purchased.

When Should a Facility Request a Lighting Audit?

A commercial lighting audit may be worthwhile when a facility is experiencing:

• Frequent lamp, ballast, or fixture failures
• High lighting-maintenance costs
• Dark or unevenly lit areas
• Employee or occupant complaints
• Poor visibility in work or exterior areas
• Obsolete fluorescent or high-intensity discharge lighting
• Difficulty finding replacement parts
• High energy use
• Lighting that remains on in unoccupied areas
• Planned renovations or changes in facility use
• Safety or security concerns
• Inconsistent color or brightness
• Upcoming capital-budget planning

An audit can also be useful even when the facility has not committed to a project. It gives the owner better information for budgeting, prioritizing buildings or areas, and deciding whether an upgrade makes financial and operational sense.

What Should You Prepare Before a Lighting Audit?

Facility managers can help make the audit more accurate by gathering:

• Recent electric bills
• Approximate operating schedules
• Floor plans, if available
• Maintenance records
• Known fixture or ballast information
• A list of problem areas
• Planned renovations or operational changes
• Utility account information
• Applicable purchasing or bidding requirements
• Facility access and work-hour restrictions

It is also helpful to include the people who regularly work in or maintain the affected areas. They often know where fixtures fail repeatedly, where occupants complain, and where the existing lighting causes practical problems.

Frequently Asked Questions About Commercial Lighting Audits

What is a commercial lighting audit?

A commercial lighting audit is an evaluation of a facility’s existing lighting, controls, operating conditions, and lighting needs. It provides the information required to recommend, design, and price a lighting upgrade.

Is a lighting audit the same as an energy audit?

No. A lighting audit focuses specifically on lighting equipment, controls, operating hours, light levels, maintenance, and potential lighting improvements. A full energy audit may also evaluate heating and cooling, building envelope, motors, water heating, and other systems.

How long does a commercial lighting audit take?

The time required depends on the facility’s size, number of buildings, fixture types, accessibility, and project complexity. A small facility may require only a few hours onsite, while a campus, school district, warehouse portfolio, or industrial property may require multiple visits.

Does every LED lighting project need photometrics?

No. Photometrics may not be necessary for every simple replacement project. They become more valuable when fixture layouts are changing, light-level requirements are important, mounting heights are significant, or the owner needs to verify uniformity and coverage before installation.

Can an LED lighting upgrade be installed without closing the facility?

In many cases, yes. Commercial lighting work can often be phased or scheduled during nights, weekends, school breaks, low-production periods, or other approved work windows. The installation plan should be discussed and included in the proposal.

Do commercial LED upgrades qualify for utility incentives?

Some projects may qualify, depending on the utility, customer account, equipment, energy reduction, and current program rules. Eligibility and application requirements should be confirmed before the project begins.

Should every existing fixture be replaced?

Not necessarily. The contractor should evaluate the condition, purpose, location, and performance of the existing fixtures. Some projects use one-for-one replacement, while others require a revised layout, different fixture quantities, retrofit components, or new controls.

What is the most important part of a commercial lighting proposal?

The most important part is a clearly defined scope that connects the proposed equipment and installation work to the facility’s actual lighting needs. The owner should understand what is included, how the system is expected to perform, and how the work will be completed.

Planning a Commercial LED Lighting Upgrade in South Carolina

A well-planned LED lighting upgrade begins with a clear understanding of the facility—not with a predetermined fixture package.

Shine Construction performs commercial lighting audits and designs and installs LED lighting upgrades for schools, warehouses, campuses, municipal properties, commercial buildings, self-storage facilities, sports venues, and other operating facilities throughout South Carolina.

Our team evaluates the existing system, the intended use of each space, energy and maintenance opportunities, lighting controls, installation requirements, and the results the owner needs from the project. We can also provide photometric lighting design, energy-savings analysis, utility-incentive assistance, electrical work, installation planning, commissioning, and owner training when required.

If your facility is considering a lighting upgrade, request a consultation with Shine Construction. We will help you determine what should be evaluated and what information you need before approving a project.