Roller door types · LL55

Insulated roller garage doors in Caernarfon

Looking at insulated roller garage doors in Caernarfon? We survey, supply and fit them in Gwynedd, and you can see a guide price for your opening online before anyone visits. Every insulated door we price is electric, with your old door taken away.

Get my guide price Call 0800 088 6248

Guide price: from £1,495 inc VAT
First step: Free survey
Covers: Caernarfon, LL55
Area: Gwynedd

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 Caernarfon?

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.
Check whether the garage has other weak spots, such as a single-glazed window or a gappy side door, that will still let heat out after the new door goes in.
Look for a socket or fused spur near the top of the opening, as every insulated door in our price list is electric.
Check whether the floor dips or rises across the opening, because an uneven floor can leave a gap under the bottom rail that lets draughts in.

How does it work in Caernarfon?

A free survey at your home in Caernarfon 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 Caernarfon?

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 Caernarfon and nearby

We take enquiries from across Caernarfon, from LL55 outwards, and confirm every price and date in writing before anything is ordered. For reference, Caernarfon sits roughly 8 miles from Bangor.

Other places close to Caernarfon that we cover include Llangefni, Bangor (Gwynedd) and Holyhead.

Rules that apply in Caernarfon

Electrics

An electric door needs a power supply near the roller box. Electrical work must meet BS 7671, and in Wales some domestic electrical work is notifiable under Part P, so it is done by a registered competent person or signed off by building control.

Planning

Replacing a garage door is not usually development that needs planning permission in Wales. Check first if your home is listed (listed building consent covers works that affect its character), is in a conservation area with an Article 4 direction, or is on an estate where planning conditions or covenants control garage doors.

Insulated roller garage doors in Caernarfon: questions

What do you check at a survey in LL55?

At a survey in LL55 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.

Can you remove my old garage door in Caernarfon?

Yes. Every door price includes removing and disposing of an old roller or up-and-over door at your Caernarfon 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.

Do I need permission for a new roller garage door in Caernarfon?

Replacing a garage door is not usually development that needs planning permission in Wales, and widening the opening needs building control approval. If you live in a listed building, a conservation area or on an estate with covenants or planning conditions, check before ordering.

Do you cover Caernarfon?

Yes. Caernarfon is part of the area we cover in Gwynedd, including LL55. Get a guide price online, then we confirm a survey or visit date in writing. Dates depend on installer and engineer availability.

Is an insulated door worth it for a detached garage?

It depends on how you use the garage. If it's only for parking or storing tools, single-skin laths may be enough. If you work out there, store anything that dislikes the cold, or want it quieter, insulated laths are worth the extra cost. Remember the walls, roof and floor also let heat out, so the door is only part of the picture.

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.