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BerkshireStructural alterations and knock-throughs

Structural alterations and knock-throughs in Lower Earley

Our structural alteration service covers Lower Earley and the surrounding parts of Berkshire. Every project starts with a free visit and ends with a completion certificate.

Guide price in Lower Earley

£5,000–£10,500 for a typical knock-through with steel beam

In Lower Earley, a structural alteration typically costs £5,000–£10,500 for a typical knock-through with steel beam, including VAT at 20% (standard rate).

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Tell us about your project. We reply to arrange a visit and a fixed quote.

Free home visit and measured survey
Fixed price for the agreed specification
Drawings, approvals and build in one contract
Building control sign-off arranged
England, Wales, Scotland and Northern Ireland

What is a structural alteration?

Steel beam installed across a wide opening with props in place during a knock-through

A structural alteration changes how a house carries its loads, most often by removing a load-bearing wall and replacing it with a steel beam. It is how kitchens and dining rooms become open-plan, and how extensions are joined to the original house.

How much does a structural alteration cost in Lower Earley?

In Lower Earley, a structural alteration typically costs £5,000–£10,500 for a typical knock-through with steel beam, including VAT at 20% (standard rate). Prices across the South East are typically 12% above the UK average for this kind of work, which is reflected in the range for Lower Earley. Design, structural calculations and council fees are extra.

Guide prices for Lower Earley, including VAT at 20% (standard rate)
Size or typeGuide range
A typical knock-through with steel beam£5,000–£10,500
Higher specification£10,500–£13,000

The biggest cost drivers are:

  • Flush or downstand beam
  • What sits above the wall
  • Moving radiators, sockets and pipes
  • Floor and ceiling repairs

Use the guide price tool to see how size and specification change the figure, then ask for a written, itemised quote.

Do you need planning permission for a structural alteration in Lower Earley?

Whether you need planning permission depends on your house and its location in England. In England removing a load-bearing wall does not need planning permission but does need building regulations approval with an engineer’s calculations. If the beam bears on a party wall, a party wall notice must be served.

Where work involves a shared wall, building on the boundary, or digging foundations within 3 metres of a neighbour’s building and deeper than its foundations (or within 6 metres for deeper work), the Party Wall etc. Act 1996 applies and notices must be served before work starts.

We check this for your address before design work starts, so there are no surprises later.

What we handle

On a typical structural alteration we handle:

  • Building control application
  • Structural engineer’s calculations and drawings
  • Building control sign-off
  • Making good, plastering and flooring repairs
  • Temporary propping
  • Fire protection to the steel

How long does it take?

The build itself usually takes 1 to 2 weeks on site for a typical knock-through. Before that, surveys, drawings and approvals usually take 6 to 12 weeks, longer if the council asks for changes.

Building in Lower Earley

The South East has a broad mix of housing, from Victorian terraces in the towns to post-war semis and newer estates, so extension types vary street by street.

From RG6 outwards, we take on projects throughout Lower Earley and the surrounding parts of Berkshire.

How it works

  1. 01

    Free visit

    We look at the property, talk through what you want and measure up. There is no charge and no obligation.

  2. 02

    Design and pricing

    Design options, then a fixed quote based on the chosen drawings and specification.

  3. 03

    Approvals in place

    We handle planning, building control and neighbour notices before work starts.

  4. 04

    Construction and completion

    We build, put right any snags and hand over the building control certificate.

Questions about structural alterations in Lower Earley

Do I need a party wall notice?

In England and Wales, if the beam sits in a party wall, yes.

Do I need building regulations approval?

Yes. Removing a load-bearing wall is building work that needs approval, with calculations for the beam.

How much does a structural alteration cost in Lower Earley?

In Lower Earley, a structural alteration typically costs £5,000–£10,500 for a typical knock-through with steel beam, including VAT at 20% (standard rate). Your fixed price depends on the survey and drawings.

Can the beam be hidden?

Often, by setting it within the ceiling depth. It depends on the joists and span.

How long does a structural alteration take in Lower Earley?

Typically 1 to 2 weeks on site for a typical knock-through. Design and approvals beforehand usually take 6 to 12 weeks.

Ready to talk about a structural alteration in Lower Earley? Book a free home visit or get an instant guide price.

Call 0800 088 6248 or get an instant guide price online.

Call 0800 088 6248Get a guide price