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Emergency electrician in Hemel Hempstead: on site within the hour.
Power out or a tripping board in Hemel Hempstead? Call 0345 3 822 833 and a qualified SEG engineer will be on site within one hour, Monday to Friday, 8am to 5pm. We are about 6 miles away, with a full team behind every call.
Emergency electrician in Hemel Hempstead
Hemel Hempstead is about six miles west of SEG House, and it is also where our registered office is. Dacorum Borough Council is the local authority.
- Council area: Dacorum Borough Council
- Postcodes: HP1–HP3
- From SEG House: about 6 miles by road (192 Watford Road, Chiswell Green, AL2 3EB)
Hemel was designated a New Town after the war, so a large share of its homes date from the 1950s to the 1970s, alongside older housing in the Old Town and Boxmoor. Homes of that age are often still on their original wiring or have had additions bolted on, which makes a condition report and a consumer unit check worthwhile before you sell, let or extend.
The Maylands business area on the east side of the town is one of the larger employment areas in the county, and we work with commercial and industrial occupiers on fixed-wire testing, emergency lighting, containment and installation work.
For businesses in Hemel Hempstead, an electrical fault is lost trading time. Ring the office, tell us what has stopped working, and we send the nearest engineer to make it safe and get you running again, with any larger repair quoted in writing.
What counts as an electrical emergency?
- A burning smell, smoke, sparks or a scorched socket, switch or consumer unit.
- Exposed live wires, or a shock from an appliance or fitting.
- Water on electrics, or a flooded consumer unit.
- Power lost to your property when the neighbours still have theirs.
- A circuit that trips again straight after you reset it.
While you wait: stay safe
- If there is a fire, or anyone is injured, call 999.
- If it is safe and the area is dry, switch off the main switch at the consumer unit.
- Do not touch anything wet, damaged or scorched, and keep people and pets away.
- If the power is out across your street, call 105. It is free and reaches your network operator.
How it works
Ring 0345 3 822 833. Tell us what you can see, smell and hear.
The office sends the nearest engineer and advises what to isolate.
On site within one hour, Monday to Friday, 8am to 5pm.
Written quote and certificate for any further work.
A team behind you, not just a one-man electrician
SEG is a team of employed, NICEIC-registered engineers with an office behind them, so one call starts a process rather than relying on one person being free. See how that compares on our main St Albans emergency electrician page. For everything else we do in Hemel Hempstead, see electricians in Hemel Hempstead.
Also covered within the hour
St Albans, Berkhamsted, Watford, Harpenden. We cover the whole area around SEG House, with the same number to call.
Hours: calls answered 7am to 10pm, seven days a week; one-hour emergency attendance Monday to Friday, 8am to 5pm. Last updated 19 October 2026.
Questions we are asked in Hemel Hempstead
How quickly can an emergency electrician get to Hemel Hempstead?
Call 0345 3 822 833 between 8am and 5pm, Monday to Friday. Hemel Hempstead is about 6 miles from SEG House and we aim to have an engineer on site within one hour of your call.
Do you attend emergencies in Hemel Hempstead out of hours?
Our phones are answered 7am to 10pm, seven days a week. The one-hour response is promised Monday to Friday, 8am to 5pm; outside those times we take the details and tell you honestly when we can get an engineer to you. If anyone is in danger or there is a fire, call 999.
Why use a team rather than a one-man electrician in Hemel Hempstead?
Capacity. A sole trader cannot be on two jobs at once, and illness, holidays or a van breakdown can leave an emergency waiting. SEG has several employed engineers and vans and an office that sends the nearest one, so if one engineer is busy, another attends.
Who do I call if the power is out across the street in Hemel Hempstead?
Call 105 for free. It connects you to the network operator for your area, who deal with faults on the supply up to your meter. If only your property has lost power, call us.
Is your registered office in Hemel Hempstead?
Our registered office is in Hemel Hempstead. Our head office, workshop and van base is SEG House at 192 Watford Road, Chiswell Green, St Albans, and that is where our engineers are dispatched from.
Do you test industrial units in Hemel Hempstead?
Yes. We carry out fixed-wire testing, emergency lighting tests and remedial work in commercial and industrial premises, with certificates and photographs for your records.
Need it done by a date?
Tell us the deadline. We’ll tell you honestly whether we can hit it — and we usually can.