Fitting, replacement and upgrades · NG31
Manual to electric roller door conversion in Grantham
If your roller door in Grantham is in good condition but heavy to lift, a conversion may suit it. We survey homes in the NG31 area free of charge, check the power supply near the box, and quote any new fused spur separately.
- Guide price
- from £495 inc VAT
- First step
- Free survey
- Covers
- Grantham, NG31 and NG32
- Area
- Lincolnshire
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What should I know about manual to electric roller door conversion in Grantham?
- A manual override lets you open the converted door in a power cut, and a battery backup unit can be added.
- The free survey checks that the curtain, barrel, box and guide rails are sound and compatible before anything is quoted.
- The engineer releases the spring tension and converts or replaces the barrel so a tubular motor can drive it, with a control box on the wall.
- Every converted door is force-tested to BS EN 12453 and handed over with a Declaration of Conformity.
How does it work in Grantham?
We check the curtain, barrel, box, guides and power, and confirm whether the door can take a motor. You receive a written quote for the conversion, or for a new door if conversion isn't suitable.
- STEP 01
Guide price
Answer a few quick questions online and see a price range for the conversion.
- STEP 02
Free survey
We check the curtain, barrel, box, guides and power, and confirm the door can take a motor.
- STEP 03
Written quote
You get the price inc VAT, what is included and the payment stages in writing.
- STEP 04
Fitting day
Motor, controls and safety devices fitted, the door commissioned and the paperwork handed over.
How much does manual to electric roller door conversion cost in Grantham?
| Item | Guide price (inc VAT) | Ex VAT |
|---|---|---|
| Manual to electric conversion, fitted and commissioned | £495–£895 | £412.50–£745.83 + VAT |
Guide prices for homes, last reviewed 25 October 2026. Your written quote is the price. See the full price list.
Covering Grantham and nearby
If your garage is in Grantham (NG31 and NG32), you can get a guide price online now, and we confirm any survey or visit date in writing. Grantham is about 22 miles from Lincoln.
Rules that apply in Grantham
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.
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.
Manual to electric roller door conversion in Grantham: questions
Do you charge more for Grantham than other towns in Lincolnshire?
No. Guide prices are the same for Grantham as for anywhere else we cover in Lincolnshire. 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.
Is an electric roller door worth it for a garage in Grantham?
That depends on how often you use the garage. An electric door opens from the car with a remote and has safety devices fitted, while a manual door costs less and suits occasional use. We price both for your Grantham garage so you can compare.
Can I message you a photo of my garage in Grantham?
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 Grantham. Send them by WhatsApp or mention them in your enquiry, and we will reply in writing.
Is the survey in Grantham really free?
Yes. For a new door, a replacement or a conversion, the survey is free and there is no obligation to go ahead. We measure the opening, check the lintel, headroom, side room and power, and send a written quote afterwards.
What safety devices are added to a converted door?
A converted door gets a pressure-sensitive safety edge on the bottom rail and, where the risk assessment calls for them, photocells across the opening. These stop or reverse the door if it touches or detects an obstruction. After fitting, the closing force is tested to BS EN 12453, and you receive a Declaration of Conformity along with the rest of the handover paperwork.
Do I need an electrician for a conversion?
An electric door needs a power supply near the box, usually a fused spur or a socket. If you already have one in a suitable place, it can normally be used. If not, a qualified electrician fits a new fused spur, priced separately in your quote. In England and Wales some domestic electrical work is notifiable under Part P.
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See a guide price in four steps, then book a free survey.