Fitting, replacement and upgrades · SM5

Battery backup and safety upgrades in Carshalton

We upgrade electric roller doors of any make in Carshalton and elsewhere in Greater London, from battery backup to new photocells. After fitting, the door is tested, and you're shown how to check the safety devices each month.

Request a visit Call 0800 088 6248

Guide price: from £99 inc VAT
First step: Visit price agreed first
Covers: Carshalton, SM5, SM1 and SM6
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 Carshalton?

After fitting, the door is tested to check it stops and reverses as it should with the new devices.
A battery backup unit lets the door run for a limited number of cycles when the mains power is off.
A pressure-sensitive safety edge on the bottom rail stops or reverses the door if it touches something while closing.
Photocells mounted either side of the opening stop the door closing while anything is breaking the beam.

How does it work in Carshalton?

On the day, the upgrade is fitted and the door is tested. If anything else needs attention, the parts are quoted before they're fitted.

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 Carshalton?

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 Carshalton and nearby

Carshalton is within the area we cover in Greater London. Homes in SM5, SM1 and SM6 get the same survey, quote and fitting process as everywhere else we work. Carshalton lies around 9 miles from Westminster.

We also cover Wallington (under a mile), Sutton (2 miles) and Mitcham (2 miles).

Rules that apply in Carshalton

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 Carshalton: questions

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.

Do you charge more for Carshalton than other towns in Greater London?

No. Guide prices are the same for Carshalton as for anywhere else we cover in Greater London. 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.

Do you repair roller doors you did not fit in Carshalton?

Yes. We repair roller garage doors of any make in Carshalton and across SM5, SM1 and SM6, where parts are available. If a part is no longer made, we tell you what will fit instead, or price a replacement door if that is the better option.

Do you cover Carshalton?

Yes. Carshalton is part of the area we cover in Greater London, including SM5, SM1 and SM6. Get a guide price online, then we confirm a survey or visit date in writing. Dates depend on installer and engineer availability.

Can safety devices be added to an older electric door?

Usually, if a compatible safety edge or photocells are available for the control box. Some older systems need extra wiring or a replacement control box first. Tell us what's on the control box label and we'll confirm whether it can be done, and the price, before booking the visit.

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.