What should you check before approving a lighting installation quote?

Before approving a lighting installation quote, check that the proposed design, site assumptions, responsibilities, documentation and commercial terms are clear enough to prevent unexpected changes later. A reliable quotation should allow you to understand what will be installed, how the work will be carried out, what the price includes and what evidence you will receive when the installation is complete.

Start by checking how the quotation relates to the building and the intended use of each area. The design should reflect factors such as room size, ceiling height, available daylight, working surfaces, circulation routes and the activities taking place. A warehouse, office, retail area, communal space and domestic room may all require different lighting positions, output levels and control arrangements. If the quotation is based on drawings, photographs or assumptions rather than a site assessment, ask which details still need to be confirmed.

Check whether the quote explains the condition and capacity of the existing installation. Additional fittings may affect circuit loading, cable routes, distribution equipment and the position of switches or control devices. Where existing wiring, fixings or ceiling voids are to be reused, the contractor should identify any assumptions about their suitability. Clarify whether access equipment, ceiling repairs, cable containment, chasing, drilling, removal of old fittings and disposal of waste are included.

Examine the technical specification rather than relying on descriptions such as “new LED lighting”. The quotation should identify the type and location of fittings, the intended colour appearance, control method, mounting arrangement and any relevant performance requirements. For commercial premises, also check whether the proposal addresses areas such as escape routes, stairways, entrances, display areas, workstations or external approaches where different lighting functions may apply.

Controls deserve particular attention because they affect both operation and future flexibility. Confirm whether the installation uses switches, dimming, occupancy detection, daylight control, timers or integration with an existing building management system. Ask who will configure the controls, whether users will receive operating instructions and whether the chosen arrangement is compatible with the fittings and the way the space is used.

Ask for a clear programme showing the expected sequence of work and any restrictions placed on the building. This is especially important for businesses that need areas kept operational, for landlords coordinating access, or for projects involving multiple trades. The quote should identify who is responsible for moving stock, protecting furniture, providing access to rooms, isolating equipment and reinstating affected areas. It should also state how changes discovered during the work will be authorised and priced.

Review the financial terms line by line. Confirm whether the quoted figure includes VAT, design work, surveys, delivery, access equipment, disposal, making good and final documentation. Check the quotation validity period, deposit arrangements, stage payments and the process for approving variations. A low initial figure may not be comparable with another quote if one contractor has included associated work and the other has excluded it.

Before acceptance, check the contractor’s competence and the documents they will provide. Points to confirm include:

• Relevant qualifications and experience for the type and scale of lighting work involved.
• Public liability and, where relevant, employers’ liability insurance.
• Membership of recognised schemes or registers, where this is relevant to the project.
• Inspection and testing arrangements once the installation is finished.
• The certificates, test results, operating instructions and maintenance information that will be supplied.
• For commercial premises, any records needed for emergency lighting inspections, handover files or facilities management.

Do not approve a quote that leaves important design decisions to be made informally on site. If the fitting positions, controls, access requirements or remedial work may change, ask for the assumptions to be recorded in writing. This creates a useful reference when comparing quotations and makes it easier to identify whether a later cost is a genuine variation or part of the original scope.

It is also worth checking how the finished installation will be handed over. Confirm who will demonstrate the controls, label relevant circuits, provide user information and explain any recommended maintenance. Lighting may require periodic cleaning, inspection, replacement of control components or review when the use of a room changes. A clear handover helps the building owner, tenant or facilities team manage the installation correctly.

RJW Electrical Ltd provides lighting installation work for domestic and commercial clients across the Midlands, including Sutton Coldfield, Streetly, Walmley, Erdington, Lichfield, Aldridge, Walsall and Shenstone. Its engineers are qualified, insured and DBS-checked, and the company is a NAPIT member, part of the TrustMark scheme and listed on the Electrical Safety Register. These credentials can form part of your due diligence, but the quotation itself should still be checked against the proposed design, site conditions and required handover information.