How to Fit a Plaster Switch Surround, Step by Step
Before you start
The surround is decorative; the switch is not included and nothing electrical is changed. Make sure the plate fits inside the opening and the wall is clean, dry and sound. The flush box behind a UK plate is standardised (BS 4662), and switches and 13A sockets are made to BS EN 60669-1 and BS 1363-2,[1][2][3] but in our experience plate outlines vary, so dry fit first. Follow the guidance on the product page, which takes priority over anything general here.
Step by step
- Hold the surround around the plate and check the gap is even.
- Mark the outline lightly with a pencil.
- Apply a suitable adhesive to the back, avoiding the opening.
- Press into place, check it is level and wipe off excess.
- Leave it to set, then fill small gaps with flexible filler.
- Paint with ordinary emulsion to match the wall.
Safety
Do not take the plate off or touch wiring unless you are competent to do so. If you do, switch off at the consumer unit and prove the circuit dead first, because supplies should be made dead and proved dead before work starts.[4][5] Bonding the surround rather than drilling also avoids one of the commonest DIY mistakes, drilling into hidden wiring.[4] Part P treats replacement and maintenance as non-notifiable but still expects safe work to BS 7671,[6][7] and Electrical Safety First recommends a registered electrician for installation work.[8][9] If in doubt, ask a qualified electrician.
Painting
Prime if you want a more even finish, then use thin coats of emulsion. See how to paint a plaster ceiling rose.
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Frequently asked questions
How do you fit a plaster switch surround?
Dry fit it, mark it, bond it to the wall with a suitable adhesive, fill the gap and paint.
What adhesive should I use?
Follow the guidance on the product page, or use an adhesive suited to plaster and your wall.
Do I need to turn the power off?
If you remove the plate or touch wiring, yes, and use a qualified electrician. A surround alone does not alter wiring.
Can I paint it?
Yes, with ordinary emulsion.
Sources
References and further reading
Harvard style. Web pages were checked on the access date shown.
- British Standards Institution (2009) BS 4662:2006+A1:2009 Boxes for flush mounting of electrical accessories. Requirements, test methods and dimensions. BSI. Available at: knowledge.bsigroup.com/products/boxes-for-flush-mounting-... (Accessed: 27 October 2026).
- British Standards Institution (2018) BS EN 60669-1:2018 Switches for household and similar fixed-electrical installations. General requirements. BSI. Available at: knowledge.bsigroup.com/products/switches-for-household-an... (Accessed: 27 October 2026).
- British Standards Institution (2023) BS 1363-2:2023 13 A plugs, socket-outlets, adaptors and connection units. 13 A switched and unswitched socket-outlets. Specification. BSI. Available at: knowledge.bsigroup.com/products/13-a-plugs-socket-outlets... (Accessed: 27 October 2026).
- Electrical Safety First (n.d.) Electrical safety advice for DIY-ers. Electrical Safety First. Available at: www.electricalsafetyfirst.org.uk/safety-advice/home-and-p... (Accessed: 27 October 2026).
- Health and Safety Executive (2025) Electrician suffered shock when electrical supply had not been properly isolated. HSE. Available at: www.hse.gov.uk/electricity/maintenance/isolate.htm (Accessed: 27 October 2026).
- Ministry of Housing, Communities and Local Government (2013) Electrical safety: Approved Document P (2013 edition). HM Government. Available at: www.gov.uk/government/publications/electrical-safety-appr... (Accessed: 27 October 2026).
- Institution of Engineering and Technology (n.d.) BS 7671 - 18th Edition: the IET Wiring Regulations. IET. Available at: electrical.theiet.org/bs-7671/ (Accessed: 27 October 2026).
- Electrical Safety First (n.d.) Choosing a registered electrician. Electrical Safety First. Available at: www.electricalsafetyfirst.org.uk/find-a-registered-electr... (Accessed: 27 October 2026).
- Electrical Safety First (n.d.) Part P of the Building Regulations. Electrical Safety First. Available at: www.electricalsafetyfirst.org.uk/find-a-registered-electr... (Accessed: 27 October 2026).
How to cite this article
Tire, G. (2026) ‘How to Fit a Plaster Switch Surround, Step by Step’, The Flare Journal. Flare Studio UK. Available at: https://flarestudio.uk/blogs/journal/how-to-fit-a-plaster-switch-surround (Accessed: 12 November 2026).
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