Structural alterations in Crawley

Covering Crawley

Our coverage around Crawley (RH11, RH77) also includes Horley, Horsham and East Grinstead.

Homes in the South East

Housing across the South East mixes inter-war semis, post-war estates and older cottages in villages and market towns, so rear and side extensions, hip-to-gable lofts and garage conversions all come up regularly.

What goes into a structural alteration?

Structural alterations change the load-bearing parts of a house, most often removing a wall between two rooms and putting in a steel beam to create an open-plan layout. The work needs a structural engineer’s design and building regulations approval.

Structural engineer’s design and calculations
Building control application and inspections
Fire protection and plaster encasement

What will a structural alteration cost?

What structural alterations typically cost. These are guide ranges; the written quote for your house replaces them.

Structural alterations	Guide price incl. VAT
Single load-bearing wall removal with steel	£3,000 to £7,500
Chimney breast removal with support	£1,800 to £4,500
Multiple walls or full open-plan remodel	£8,000 to £20,000

Planning and building rules in Crawley

English projects need planning clearance from the local council, building regulations sign-off from building control, and party wall notices where the work is on or near a shared boundary. We prepare and manage all three.

Internal work like this does not usually need planning permission unless the house is listed or your permitted development rights have been removed. It does need building regulations approval because it affects the structure.

What should Crawley homeowners check first?

The beam size can mean a downstand in the ceiling unless it is set flush within the floor.
Removing walls can affect the fire escape route on open-plan ground floors in three-storey houses.

What happens after I enquire?

Send us the details. Give us a postcode, a rough idea of size and some photos, by phone, form or the guide price tool.
We visit and measure. A surveyor checks the house, the boundaries and the ground, and discusses what is realistic.
Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
Build and hand over. Our teams build to the programme, building control inspects, and you get the completion paperwork at the end.

Structural alterations: common questions

How long does it take?

The structural work is usually done in a few days, with one to three weeks including making good.

Can the steel be hidden in the ceiling?

Often it can be set within the floor depth, avoiding a downstand. The engineer confirms what is possible.

Can you visit a house in Crawley to quote?

Yes. After a short call we arrange a site visit to measure up and agree what the design needs to do, then send a written price.

Other towns nearby

Learn more about structural alterations, or see every project we cover in Crawley.