Fitting, replacement and upgrades · PA5

Battery backup and safety upgrades in Johnstone

Battery backup and safety upgrades in Johnstone 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 PA5 area first.

Request a visit Call 0800 088 6248

Guide price: from £99 inc VAT
First step: Visit price agreed first
Covers: Johnstone, PA5, PA10 and PA9
Area: Renfrewshire and Inverclyde

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 Johnstone?

The battery charges from the mains while the power is on, so it's ready the next time there's a power cut.
A battery backup unit lets the door run for a limited number of cycles when the mains power is off.
After fitting, the door is tested to check it stops and reverses as it should with the new devices.
Where a door has never had photocells, any extra wiring needed is priced before we come out.

How does it work in Johnstone?

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 Johnstone?

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 Johnstone and nearby

If your garage is in Johnstone (PA5, PA10 and PA9), you can get a guide price online now, and we confirm any survey or visit date in writing. For reference, Johnstone sits roughly 3 miles from Paisley.

Looking from a neighbouring town? We also cover Paisley (3 miles) and Barrhead (5 miles).

Rules that apply in Johnstone

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. Part P does not apply in Scotland, but electrical work must meet BS 7671 and the Scottish building standards where it forms part of building work.

Battery backup and safety upgrades in Johnstone: questions

How much is a visit in Johnstone?

Prices for battery backup and safety upgrades start from £99 inc VAT, and the price is agreed before anyone comes out. Any parts not covered by that price are quoted before they are fitted, so you can decide on the spot. The guide prices are the same in Johnstone as elsewhere we cover.

Do you charge more for Johnstone than other towns in Renfrewshire and Inverclyde?

No. Guide prices are the same for Johnstone as for anywhere else we cover in Renfrewshire and Inverclyde. 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 I get a price for Johnstone 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 repair roller doors you did not fit in Johnstone?

Yes. We repair roller garage doors of any make in Johnstone and across PA5, PA10 and PA9, 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.

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.

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.