What is a structural alteration?
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 Dunbartonshire?
In Dunbartonshire, a structural alteration typically costs £4,250–£9,250 for a typical knock-through with steel beam, including VAT at 20% (standard rate). Prices in Scotland sit near the national average for this kind of work, and the range for Dunbartonshire reflects that. Design, structural calculations and council fees are extra.
| Size or type | Guide range |
|---|---|
| A typical knock-through with steel beam | £4,250–£9,250 |
| Higher specification | £9,250–£11,500 |
The biggest cost drivers are:
- What sits above the wall
- Floor and ceiling repairs
- Moving radiators, sockets and pipes
- Agreements with neighbours on shared walls
For a figure based on your own measurements, try the guide price tool, then book a free home visit for a fixed quote.
Do you need planning permission for a structural alteration in Dunbartonshire?
Before anything is built in Dunbartonshire, we confirm which approvals apply in Scotland. In Scotland removing a load-bearing wall needs a building warrant before work starts.
In Scotland a building warrant is needed before work starts on most extensions, loft conversions and conversions. It is issued by the council’s building standards service. When the work is finished, a completion certificate is submitted and accepted by the council after inspection.
If the answer is not clear-cut, we can apply for formal confirmation before you commit to the build.
What we handle
The work we manage on a structural alteration:
- Building control sign-off
- Building control application
- Fire protection to the steel
- Making good, plastering and flooring repairs
- Steel beam supply and installation on padstones
- Temporary propping
How long does it take?
Build time is typically 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 Dunbartonshire
In Scotland, bungalows and one-and-a-half-storey homes are common, so dormer conversions are a popular way to add bedrooms.
Towns we cover in Dunbartonshire include Bearsden, Clydebank, Dumbarton and Kirkintilloch.
How it works
- 01
Free visit
We look at the property, talk through what you want and measure up. There is no charge and no obligation.
- 02
Design and fixed quote
Drawings, structural calculations and an itemised, fixed price for the agreed specification.
- 03
Permissions sorted
Applications, building control and neighbour arrangements, all before the start date.
- 04
Build and handover
Work follows the agreed programme, with inspections along the way and a completion certificate at the end.
Questions about structural alterations in Dunbartonshire
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.
Do you build structural alterations in Dunbartonshire?
Yes. We build structural alterations across Dunbartonshire, including postcodes G13, G22, G23, G3 and G31. Every project starts with a free home visit.
Can the beam be hidden?
Often, by setting it within the ceiling depth. It depends on the joists and span.
How long does a knock-through take?
Usually 1 to 2 weeks on site, plus a few days for plastering to dry.
Do I need planning permission for a structural alteration in Dunbartonshire?
In Scotland removing a load-bearing wall needs a building warrant before work starts.
How much does a structural alteration cost in Dunbartonshire?
In Dunbartonshire, a structural alteration typically costs £4,250–£9,250 for a typical knock-through with steel beam, including VAT at 20% (standard rate). Your fixed price depends on the survey and drawings.