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DevonStructural alterations and knock-throughs

Structural alterations and knock-throughs in Exmouth

We take on structural alterations in Exmouth, about 9 miles south-east of Exeter, handling the drawings, approvals and construction so you deal with one company throughout.

Guide price in Exmouth

£4,500–£9,750 for a typical knock-through with steel beam

In Exmouth, a structural alteration typically costs £4,500–£9,750 for a typical knock-through with steel beam, including VAT at 20% (standard rate).

Book a free home visit

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 Exmouth?

In Exmouth, a structural alteration typically costs £4,500–£9,750 for a typical knock-through with steel beam, including VAT at 20% (standard rate). Prices in the South West sit near the national average for this kind of work, and the range for Exmouth reflects that. Design, structural calculations and council fees are extra.

Guide prices for Exmouth, including VAT at 20% (standard rate)
Size or typeGuide range
A typical knock-through with steel beam£4,500–£9,750
Higher specification£9,750–£12,000

What moves the price most:

  • Party wall involvement
  • Span of the opening
  • What sits above the wall
  • Moving radiators, sockets and pipes

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 Exmouth?

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.

Our first visit includes a check of your planning history, so you know the route before paying for drawings.

What we handle

The work we manage on a structural alteration:

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

How long does it take?

Expect 1 to 2 weeks on site for a typical knock-through. Allow time beforehand for drawings and approvals, usually 6 to 12 weeks.

Building in Exmouth

The South West mixes stone and render cottages with post-war and newer estates, and local materials matter more here when matching an extension.

If your home is in Exmouth or close by in Heavitree, Exeter and Newton Abbot, a free home visit is the first step.

How it works

  1. 01

    Survey and brief

    We visit, discuss your ideas and budget, and survey the property or site at no cost.

  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

    Build and sign-off

    We run the build to a written programme and hand over the completion certificate.

Questions about structural alterations in Exmouth

How long does a structural alteration take in Exmouth?

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

Do I need a party wall notice?

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

How much does a structural alteration cost in Exmouth?

In Exmouth, a structural alteration typically costs £4,500–£9,750 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 do I know if a wall is load-bearing?

Only a survey can confirm it. Walls that carry floor joists, roof loads or walls above are load-bearing. We check on site and the engineer confirms.

Start with a guide price, then book a free survey for a fixed quote in Exmouth.

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

Call 0800 088 6248Get a guide price