Fitting, replacement and upgrades

Battery backup and safety upgrades in Gwynedd

We provide battery backup and safety upgrades across Gwynedd, from Bangor to Holyhead. This is booked as a visit, with the visit price agreed before we come out. Travel to Holyhead and Llangefni is priced individually and confirmed in writing before booking.

Request a visit Call 0800 088 6248

Guide price: from £99 inc VAT
First step: Visit price agreed first
Covers: Gwynedd
Towns listed: 4

Roller door control box and battery backup unit mounted on a garage wall

Computer-generated image

What should I know about battery backup and safety upgrades in Gwynedd?

You're shown how to test the safety edge and photocells monthly, following the manufacturer's instructions for your door.
A pressure-sensitive safety edge on the bottom rail stops or reverses the door if it touches something while closing.
Where a door has never had photocells, any extra wiring needed is priced before we come out.
A battery backup unit lets the door run for a limited number of cycles when the mains power is off.

Towns we cover in Gwynedd

How does it work?

STEP 01
Tell us about the door
Describe the door and what you need, with a photo or video if you can.
STEP 02
Agree the visit price
We confirm the visit price before anyone comes out.
STEP 03
Visit
The engineer finds the cause and makes the door safe where possible.
STEP 04
Parts quoted first
Any parts are quoted before they are fitted, so you decide.

Guide prices for battery backup and safety upgrades

Item	Guide price (inc VAT)	Ex VAT
Battery backup unit, fitted to an existing electric door	£149–£279	£124.17–£232.50 + VAT
Safety edge replacement, fitted	£159–£295	£132.50–£245.83 + VAT
Photocell pair replacement, fitted	£99–£189	£82.50–£157.50 + VAT

Guide prices for homes, last reviewed 25 October 2026. Your written quote is the price. See the full price list.

Rules that apply in Wales

Powered door safety

Every powered door we fit is commissioned with force testing to BS EN 12453 and handed over with a Declaration of Conformity and UKCA or CE marking, as the Supply of Machinery (Safety) Regulations 2008 require.

Electrics

An electric door needs a power supply near the roller box. Electrical work must meet BS 7671, and in Wales some domestic electrical work is notifiable under Part P, so it is done by a registered competent person or signed off by building control.

Questions about battery backup and safety upgrades in Gwynedd

Which towns do you cover in Gwynedd?

We cover Gwynedd, including Bangor, Holyhead, Caernarfon and Llangefni. Every town has its own page with local details, and you can start a guide price for any postcode in Gwynedd online.

Are guide prices the same across Gwynedd?

Yes for the door and visit prices. Travel to Holyhead and Llangefni is priced individually and shown in writing before you agree to anything.

Can I get a price without anyone visiting?

Yes. The guide price tool takes four steps and gives a range for your opening and door type, or the visit price for a repair. It is a guide, not a quote: the written quote comes after the survey or once the visit price is agreed.

Do I still need the manual override if I have a battery backup?

Yes. A battery unit covers a limited number of cycles, and it can run down during a long power cut or as the battery ages. Keep the override handle somewhere you can find it in the dark, and make sure everyone who uses the garage knows where it is and how it works.

How often should I test the safety edge and photocells?

Test them monthly, following the manufacturer's instructions for your door. The aim is to confirm that the door stops or reverses when the safety edge meets an obstruction, and won't close while the photocell beam is broken. If either test fails, don't keep using the door until it has been checked, and request a visit.