Fitting, replacement and upgrades · L34

Battery backup and safety upgrades in Prescot

If the electric door on your garage in Prescot has no photocells, or a worn safety edge, an upgrade visit can put that right. We cover homes in Merseyside, and any other parts the door needs are quoted before they're fitted.

Request a visit Call 0800 088 6248

Guide price: from £99 inc VAT
First step: Visit price agreed first
Covers: Prescot, L34, L35 and L36
Area: Merseyside

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 Prescot?

Photocells mounted either side of the opening stop the door closing while anything is breaking the beam.
Where a door has never had photocells, any extra wiring needed is priced before we come out.
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.

How does it work in Prescot?

Tell us about the electric roller door at your home in Prescot and the upgrade you're interested in. The make of the motor or control box helps us check compatibility.

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 Prescot?

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 Prescot and nearby

We survey and fit roller garage doors across Prescot, including L34, L35 and L36, as part of our coverage in Merseyside. For reference, Prescot sits roughly 7 miles from Liverpool.

Nearby, we also take enquiries from Huyton, St Helens and Halewood.

Rules that apply in Prescot

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 Prescot: questions

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

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 Prescot. Send them by WhatsApp or mention them in your enquiry, and we will reply in writing.

Can I get a price for Prescot without anyone visiting?

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

Do you cover Prescot?

Yes. Prescot is part of the area we cover in Merseyside, including L34, L35 and L36. Get a guide price online, then we confirm a survey or visit date in writing. Dates depend on installer and engineer availability.

Do you charge more for Prescot than other towns in Merseyside?

No. Guide prices are the same for Prescot as for anywhere else we cover in Merseyside. The written quote reflects your opening and the door you choose, not your postcode, apart from islands and remote areas where any travel cost is shown in advance.

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 many times will a battery backup open the door?

It depends on the unit, the motor and the size and weight of the door. A battery backup is designed for a limited number of cycles in a power cut, not for running the door for days. If you need the door after the battery runs down, use the manual override as the manufacturer's instructions describe.