Fitting, replacement and upgrades · HP2

Battery backup and safety upgrades in Hemel Hempstead

We upgrade electric roller doors of any make in Hemel Hempstead and elsewhere in Hertfordshire, 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: Hemel Hempstead, HP2, HP3 and HP1
Area: Hertfordshire

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 Hemel Hempstead?

We check your motor and control box are compatible with the upgrade before the visit is booked, not on the day.
The battery charges from the mains while the power is on, so it's ready the next time there's a power cut.
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 Hemel Hempstead?

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 Hemel Hempstead?

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 Hemel Hempstead and nearby

Our coverage in Hertfordshire includes Hemel Hempstead and the HP2, HP3 and HP1 postcode districts, so the same guide prices and written quotes apply here. Hemel Hempstead lies around 16 miles from Hertford.

Other places close to Hemel Hempstead that we cover include Berkhamsted, St Albans and Harpenden.

Rules that apply in Hemel Hempstead

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 Hemel Hempstead: questions

Do you cover Hemel Hempstead?

Yes. Hemel Hempstead is part of the area we cover in Hertfordshire, including HP2, HP3 and HP1. Get a guide price online, then we confirm a survey or visit date in writing. Dates depend on installer and engineer availability.

What should I do while I wait for a visit in Hemel Hempstead?

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 Hemel Hempstead visit date is confirmed in writing.

Do you repair roller doors you did not fit in Hemel Hempstead?

Yes. We repair roller garage doors of any make in Hemel Hempstead and across HP2, HP3 and HP1, 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 much is a visit in Hemel Hempstead?

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 Hemel Hempstead as elsewhere we cover.

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.