SMS Electrical & Testing

SMS Electrical & Testing I’m Stu, I’ve been working on domestic & commercial electrics, and networking for over 20 years.
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I offer Fault Finding, Testing, and electrical Installation services across South Yorks and North Notts, PAT & FAT Testing, LED Lighting, Smoke Alarms etc..

Just thumbing through the Napit Codebreakers book, an excellent way to work out the Maximum Allowable Zs for a circuit b...
22/08/2026

Just thumbing through the Napit Codebreakers book, an excellent way to work out the Maximum Allowable Zs for a circuit breaker whilst on-site if you don’t have anything else with you!

Readings under the Maximum values ensure your circuit breakers trip within the permitted times, helping to keep everything safe in the event of a fault.

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50A feed installed for a water heater in . Contactor controlled with provision for smart-home relay in the future. ...
14/08/2026

50A feed installed for a water heater in . Contactor controlled with provision for smart-home relay in the future. Chunky 16mm T&E cable required for this one, but I was able to wrangle it in!

All testing passed with super low readings. Handed over to the customer.

Extractor Fan replaced for a customer recently in . Replaced older non-working fan, replaced broken outside grille. C...
14/07/2026

Extractor Fan replaced for a customer recently in . Replaced older non-working fan, replaced broken outside grille. Customers' utility room is now able to vent properly again!

Huge thanks to the customer for the coffee and cake too :-)

Do you need an extractor fan replacing in or nearby? Give me a shout!

Replaced some downlights for a customer in as part of wider works to the property. The older downlights were not inst...
17/06/2026

Replaced some downlights for a customer in as part of wider works to the property. The older downlights were not installed well - no earth continuity (not connected!) and single insulated cable showing. Re-fitted new Luceco F-Type Fire Rated downlights with chrome bezels. Much better finish, correctly installed, and safer!

Random junction box in a wall found whilst doing some remedial works to a property in . Found a cable that wasn't supp...
05/06/2026

Random junction box in a wall found whilst doing some remedial works to a property in . Found a cable that wasn't supposed to be live, but was, held together in the wall with insulation tape! Made safe, removed redundant wiring, and re-terminated into a new . Done as part of wider works at the property.

Attended a fault-find for a customer in . Customer could smell something "odd" and some sockets stopped working. Foun...
11/05/2026

Attended a fault-find for a customer in . Customer could smell something "odd" and some sockets stopped working. Found a burned out washing machine switch and charred wires. Replaced the switched, capped off an un-used spur, and replaced the wire feeding the spur. Ensured all connections were tight, and tested OK at each socket.

Don't wait for the worst to happen, if you smell anything bad or have tripping sockets - call me!

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Moving a light switch for a customer in . Lighting cables went underfloor, jointed into existing wiring with a Wagobox...
11/05/2026

Moving a light switch for a customer in . Lighting cables went underfloor, jointed into existing wiring with a Wagobox Lite, tested, Minor Works Cert issued. Combination of calculated and measured readings obtained.

Need works doing? give me a shout for a quote!

Address

Killamarsh

Telephone

+441144000304

Website

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