Roller door types · AL5

Insulated roller garage doors in Harpenden

We fit insulated roller garage doors in Harpenden and across AL5, from single openings up to wide doubles of about 5.5 m. Each door is commissioned on the day, with the safety devices tested and the paperwork handed over.

Get my guide price Call 0800 088 6248

Guide price: from £1,495 inc VAT
First step: Free survey
Covers: Harpenden, AL5 and AL3
Area: Hertfordshire

Close-up of rain-beaded insulated anthracite roller door laths beside the guide rail and brush seal

Computer-generated image

What should I know about insulated roller garage doors in Harpenden?

Decide whether you want extras such as battery backup or a wireless keypad, so they can be included in the written quote rather than added later.
If the garage is integral, consider how much cold air and noise currently reaches the rooms that share a wall or ceiling with it.
Measure the headroom above the opening carefully, because insulated laths make a bigger roll than single-skin and need a deeper box.
Think about how the garage will be used in future, since choosing insulated laths now avoids replacing the door if it becomes a hobby or utility space.

How does it work in Harpenden?

A free survey at your home in Harpenden then confirms the lath size, box position and power supply. You get a written quote with the exact door, extras and total price, including VAT.

STEP 01
Guide price
Answer four quick questions online and see a price range for your opening.
STEP 02
Free survey
We measure the opening, headroom, side room, lintel and power, and talk through options.
STEP 03
Written quote
You get the price inc VAT, what is included and the payment stages in writing.
STEP 04
Fitting day
Old door out, new door in, commissioned and handed over with the paperwork.

How much do insulated roller garage doors cost in Harpenden?

Item	Guide price (inc VAT)	Ex VAT
Insulated electric roller door, single up to 2.4 m	£1,495–£2,295	£1,245.83–£1,912.50 + VAT
Insulated electric roller door, wide single 2.4–3.0 m	£1,795–£2,795	£1,495.83–£2,329.17 + VAT
Insulated electric roller door, double 3.0–4.0 m	£2,195–£3,295	£1,829.17–£2,745.83 + VAT
Insulated electric roller door, wide double 4.0–5.5 m	£2,595–£3,995	£2,162.50–£3,329.17 + VAT

Guide prices for homes, last reviewed 25 October 2026. Your written quote is the price. See the full price list.

Covering Harpenden and nearby

If your garage is in Harpenden (AL5 and AL3), you can get a guide price online now, and we confirm any survey or visit date in writing. Harpenden is about 12 miles from Hertford.

We also cover St Albans (5 miles), Luton (5 miles) and Hemel Hempstead (6 miles).

Rules that apply in Harpenden

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.

Insulated roller garage doors in Harpenden: questions

Can you remove my old garage door in Harpenden?

Yes. Every door price includes removing and disposing of an old roller or up-and-over door at your Harpenden address, along with standard fixings and making good to the reveals. If the frame or lintel needs work, we price it at the survey before you agree.

Can I get a price for Harpenden 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.

What do you check at a survey in AL5?

At a survey in AL5 we measure the width and height of the opening, the headroom above it for the roller box, the side room for the guide rails and the floor level. We also look at the lintel and where power can come from for an electric door.

Is the survey in Harpenden 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.

Is an insulated door more secure than a single-skin one?

Not automatically. Insulation and burglary resistance are separate qualities. How well a door resists attack depends on how that specific manufacturer's model has been tested, for example to LPS 1175 or STS 202. If security is a priority, look at our security-rated doors, which are also insulated, and we'll show you the certificate for the exact model.

Can insulation be added to my existing roller door?

Not in a practical way. The foam sits between the two aluminium skins of each lath when it's made, so a single-skin curtain can't simply be filled or lined. Getting insulated laths means a new curtain, and because the box and barrel need to suit the larger roll, that normally means a new door, which we can quote as a replacement.