What to hand over, how to conduct a client walkthrough, and what warranty to provide. The complete handover guide for domestic and commercial electrical projects.
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Written and reviewed by Andrew Moore, founder of Elec-Mate, against BS 7671:2018+A4:2026, IET Guidance Note 3 and the IET On-Site Guide.
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The way you finish a job is what the customer remembers. A clean, professional handover — with all documentation, a walkthrough, and a clear explanation — turns a completed job into a lasting impression. It is also what gets you five-star reviews, referrals, and repeat business.
Too many electricians finish the work, test, slap the certificate on the worktop, and leave. That is a missed opportunity. A proper handover takes 30 to 60 minutes and includes documentation, demonstration, and a conversation about ongoing maintenance. It is billable time and it is time well spent.
This guide covers what you need to hand over for domestic and commercial projects, how to conduct a client walkthrough, and what warranty and aftercare to provide.
Every key change in the 2026 amendment on one page. AFDDs, TN-C-S protection, new schedule columns, model forms. Pinned on your van dash.
Required for all new installations and major alterations. Confirms the installation complies with BS 7671 at the time of completion. Must include full schedule of test results for every circuit. This is the certificate you issue for rewires, new circuits, consumer unit replacements, and other notifiable work.
For minor additions or alterations to existing circuits — such as adding a socket to an existing ring final, replacing a light fitting, or adding an FCU. Does not require a full schedule of test results but must confirm the work complies with BS 7671 and includes relevant test results.
For inspection and testing of existing installations — no new work involved. Reports on the condition of the installation and identifies any defects. Required every 5 years for rental properties (England, from 2020). Recommended every 10 years for owner-occupied domestic and every 5 years for commercial.
An O&M manual tells the building owner how to operate and maintain the electrical installation. For domestic work, a simple document is sufficient. For commercial work, it is a contractual and legal requirement.
Attach manufacturer data sheets for all installed equipment — consumer unit, smoke detectors, dimmer switches, timers, smart devices. Customers lose individual instruction leaflets; the O&M manual keeps everything in one place.
As-built drawings show the installation as it was actually installed. For domestic work, this does not need to be a formal CAD drawing — photographs and a circuit schedule serve the same purpose.
Photograph every cable route before it is concealed — in walls before plasterboard, under floors before boards go down, in the loft before insulation covers cables. Annotate the photos with circuit numbers. Share digitally with the customer (email or app) so they have a permanent record.
Update the original design drawings to show the installation as built. Mark all changes from the design in red (known as "red-line" drawings). Include: circuit routes, containment routes, distribution board locations, switch and socket positions, fire alarm and emergency lighting layouts. Submit in both PDF and editable format (DWG/DXF).
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The client walkthrough is the most personal part of the handover. It is your chance to demonstrate the quality of your work, educate the customer, and leave a lasting positive impression.
Consumer rights: Under the Consumer Rights Act 2015 and the Limitation Act 1980, customers can claim for faulty workmanship for up to 6 years. Your formal warranty period does not limit their statutory rights. A clear warranty statement shows confidence in your work and sets expectations for what you will fix proactively versus what requires a formal claim.
Commercial handover is more formal and documentation-heavy. The handover package typically includes:
Include handover time in your quote — it is billable work, not an afterthought. Budget 30 to 60 minutes for domestic and 2 to 4 hours for commercial. The handover is also when you collect final payment, ask for a review, and plant the seed for future work ("Your next EICR is due in 2031 — I will send you a reminder").
Elec-Mate creates professional EICs, test schedules, and handover packs digitally — complete on site and share instantly with your customer.
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