Fitting, replacement and upgrades · E3

Battery backup and safety upgrades in Bow

Battery backup and safety upgrades in Bow are priced item by item, so you can choose one or combine them on one visit. Tell us about your control box and we'll confirm compatibility for homes in the E3 area first.

Request a visit Call 0800 088 6248

Guide price: from £99 inc VAT
First step: Visit price agreed first
Covers: Bow, E3, E20 and E15
Area: Greater London

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 Bow?

A pressure-sensitive safety edge on the bottom rail stops or reverses the door if it touches something while closing.
After fitting, the door is tested to check it stops and reverses as it should with the new devices.
You're shown how to test the safety edge and photocells monthly, following the manufacturer's instructions for your door.
Photocells mounted either side of the opening stop the door closing while anything is breaking the beam.

How does it work in Bow?

We confirm the visit price and the cost of the battery unit, safety edge or photocells. The visit is booked, with the date confirmed in writing once an engineer is available.

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.

How much do battery backup and safety upgrades cost in Bow?

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.

Covering Bow and nearby

Our coverage in Greater London includes Bow and the E3, E20 and E15 postcode districts, so the same guide prices and written quotes apply here. Bow is about 6 miles from Westminster.

Other places close to Bow that we cover include Stratford, Canary Wharf and Canning Town.

Rules that apply in Bow

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 England some domestic electrical work is notifiable under Part P, so it is done by a registered competent person or signed off by building control.

Battery backup and safety upgrades in Bow: questions

What should I do while I wait for a visit in Bow?

If the door is stuck part-open, keep people, pets and cars clear of it and switch off the power at the isolator if it is safe to reach. Do not force the curtain or open the roller box. Your Bow visit date is confirmed in writing.

Will you fix the door on the first visit?

A fault can sometimes be found and put right on the first visit, but we never promise it. If a part needs ordering, we quote for it first, make the door safe where we can, and confirm the return date in writing.

Can I message you a photo of my garage in Bow?

Yes. Photos of the opening, the inside of the garage above the door and any existing door help us give a more useful guide price for Bow. Send them by WhatsApp or mention them in your enquiry, and we will reply in writing.

Do you cover Bow?

Yes. Bow is part of the area we cover in Greater London, including E3, E20 and E15. Get a guide price online, then we confirm a survey or visit date in writing. Dates depend on installer and engineer availability.

Can a battery backup be fitted to a manual roller door?

No. A manual door has no motor or control box for a battery unit to power, because springs in the barrel balance the curtain and you lift it by hand. If you'd like powered operation, a manual-to-electric conversion may be possible when the curtain, barrel, box and guides are sound and compatible.

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.