Is scaffolding included in a builder's quote?

Often not. Scaffold is a separate hire on a separate contract, so it may not appear as a line item at all. Find the word scaffold in your quote and ask directly whether it is in the price or you arrange it yourself, because either way the cost lands with you.

How much does scaffolding cost for an extension?

A standard single-storey extension with scaffold on two or three sides typically costs £1,200 – £2,500. Smaller single-elevation jobs come in lower, and four-sided or two-storey setups push higher. Erection and strike is usually the largest single charge.

Do I need a licence for scaffolding on the pavement?

Yes. If any part of the scaffold overhangs the public pavement or road you need a highway licence from your council under the Highways Act, and going without one risks an unlimited fine. Rear garden extensions rarely trigger it; side returns facing a pavement often do.

Can I put scaffolding on my neighbour's land without permission?

No. Planning permission and the Party Wall Act do not give you a right to scaffold on a neighbour's property, and the Access to Neighbouring Land Act excludes new construction. Without their agreement you have no legal way to force access, so talk to them early.

When can scaffolding be taken down on an extension?

Not until building control has inspected the roof and you have done your own platform inspection. Striking it early risks paying to re-erect it if a defect is found later, especially at tile and window junctions that are the most common post-construction roof fault.

Do I need to tell my insurer about scaffolding?

Yes. Scaffold gives burglars easy access to upper-floor windows, and many home insurance policies apply a theft exclusion when it is present. Declare the dates and location before it goes up and get written confirmation you are still covered.

Back to Single Storey Rear Extension

Phase 4 · Structure · Task 02 of 09

Scaffolding

How to manage scaffolding for your extension: checking it's in the builder's quote, typical hire costs (£1,200 – £2,500), highway licences, neighbour access rights, and the pre-removal inspection that prevents expensive re-work.

9 min readUpdated 2026Premium

Infographic showing four key steps to managing scaffold on an extension: check the quote, when scaffold goes up, agree the hire period, and the pre-removal platform inspection

Prerequisites

Complete this first

Walls and Blockwork

Your builder's quote probably doesn't mention scaffolding. Not as a line item. Not as a note. Not at all.

This catches homeowners off guard because scaffolding feels like part of "building the walls." It isn't. Scaffolding is a separate hire, arranged with a separate company, on a separate contract. Your builder might organise it, or they might expect you to. Either way, the cost sits with you, and if nobody has discussed it before work starts, you'll find out when the bricklayer reaches chest height and stops, because laying blocks any higher from the ground isn't safe.

Do this first

Scaffold's first lift goes up once your walls reach chest height (around 1.5m), and it rises in further lifts as the brickwork climbs. It must stay standing through roof structure and roof covering, and cannot come down until the BCO roof inspection is complete.

What this guide covers

01Check the Quote Before You Sign
02When Your Extension Needs Scaffold
03Could Your Build Need Scaffold Twice?
04What It Costs
05Highway Licence
06Neighbour Access
07Who Does the Work
08Coordination: When Does It Come Down?
09Tell Your Insurer

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