Steel BeamInstallers
Victorian house mid-conversion into flats with new steel beams and stud walls

Flat & HMO conversion steels · Eastleigh

Flat & HMO conversion steels in Eastleigh

Flat & HMO conversion steels for homes in SO50, SO53, designed by a structural engineer.

  • Itemised written quote
  • Beam sized by a structural engineer
  • Covering Eastleigh and nearby

Free survey in Eastleigh

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  • Free survey visit
  • Engineer's calculations arranged
  • Building control handled
  • Fixed written price once scope is agreed
  • England, Wales, mainland Scotland & NI

What flat & HMO conversion steels involve in Eastleigh

Need flat & HMO conversion steels in Eastleigh? It sits about 4.9 miles from Southampton, which we also cover. We survey the property, arrange the engineer's design, deal with local building control, fit the steel and make good, all under one quote for SO50 and SO53 addresses.

Turning a large house into flats or an HMO rarely leaves every wall where it was. Rooms are split and joined, kitchens and bathrooms appear on upper floors, and new stairs or corridors are formed. Each time a load-bearing wall moves, steel usually takes its place, and it has to suit the fire and sound standards of a building shared by several households.

Key points for your project

  • Where the building is leasehold, or an existing flat is being altered, the freeholder's written consent is normally needed for structural changes. Lenders may also want to see building control sign-off before releasing funds on a converted property.
  • The reduced 5% rate of VAT may apply to some conversion work, such as changing the number of dwellings in a building. Whether it applies depends on the details of the scheme, so confirm the position with your accountant before relying on it.
  • Costs reflect how many walls move, the number of beams and columns, access for lifting steel to upper floors, the fire period required, phasing around other trades and whether existing foundations can take the new concentrated loads.
  • Keep the structural calculations, building control completion certificate and fire protection records together in one place. They are needed for signing off the conversion, and buyers, lenders and licensing officers may ask to see them later.
  • Conversions add kitchens and bathrooms upstairs, so soil pipes, water supplies and extract ducts need routes through the structure. Steel and joist positions are coordinated with these runs, and steel should never be drilled or notched on site without the engineer's approval.

What happens, step by step

  1. Look and measure

    We check the wall, the span you want and what the wall is carrying, and photograph anything the engineer needs to see.

  2. Design and price

    Calculations come back from the engineer and we confirm your fixed written price, line by line.

  3. Building control

    We submit a building notice or full plans application to the local council's building control team, so approval is in place before the wall is touched.

  4. Fit, inspect, finish

    The work is propped and the steel installed and packed tight. After inspection the opening is boxed, plastered and left clean.

What do flat & HMO conversion steels cost in Eastleigh?

As a guide, budget £2,800–£10,100 including VAT for steelwork for a flat or HMO conversion in Eastleigh, based on published UK cost guides adjusted for prices in the South East (+12%).

JobTypical guide rangeWhat it usually covers
Steelwork for a flat or HMO conversion£2,800–£10,100Beams and posts for a revised layout, with approvals; fire and sound separation priced with the conversion
Fire protection to a steel beam£170–£670 per beamFire-rated board boxing or an intumescent coating system as specified
Building control fees£280–£730Building notice or full plans fee and inspections; varies by council or approver
Load-bearing wall removal with steel beam£2,250–£5,600Typical internal wall up to about 4 m: calculations, building control, propping, steel, padstones, fitting, fire protection and making good

Figures include our approximate regional adjustment for prices in the South East (+12%) and are rounded. How these figures are worked out.

Approvals in Eastleigh

Structural openings in English homes need building regulations approval before work starts. The local council's building control team can deal with it, or you can use a registered building control approver. Either way the steel is inspected before it is covered, and a completion certificate is issued at the end. Keep it safe for when you sell.

If the beam bears into a wall you share with a neighbour, the Party Wall etc. Act 1996 applies, and a party structure notice must be served at least two months before that work starts. We arrange this through a party wall surveyor.

Building rules in England

Flat & HMO conversion steels near Eastleigh

Questions about flat & HMO conversion steels in Eastleigh

Do you cover Eastleigh for flat & HMO conversion steels?

Yes. We carry out flat & HMO conversion steels in Eastleigh and the SO50 and SO53 postcode districts. Book a free survey visit and we will check the wall, arrange the engineer's calculations and send an itemised written quote.

How much do flat & HMO conversion steels cost in Eastleigh?

As a guide, budget £2,800–£10,100 including VAT for steelwork for a flat or HMO conversion in Eastleigh, based on published UK cost guides adjusted for prices in the South East (+12%). The exact figure depends on the span, what the wall carries, access and the finish, and is fixed in writing once the scope is agreed.

Does 5% VAT apply to a flat conversion?

It may. A reduced rate of VAT can apply to some conversion work, such as changing the number of dwellings in a building or converting a house into an HMO, provided the conditions are met. The rules have detail and exceptions, so confirm the position with your accountant before pricing the project on that basis.

Can you install the steel while my main contractor runs the conversion?

Yes. On many conversions the steelwork is installed as a package within a wider build, working to the main contractor's programme and the engineer's design. We coordinate propping, deliveries and building control inspections for the steel so the other trades can follow on smoothly once it is in.

Do I need planning permission to convert a house into an HMO?

You may, depending on the size of the HMO, where it is and any local restrictions. In some areas smaller HMOs can be formed without a planning application, while larger ones, and conversions into self-contained flats, usually need permission. Check with the local planning authority before committing to a layout and its steelwork.

Do I need a party wall agreement for flat & HMO conversion steels in Eastleigh?

Yes, if the beam bears into a shared wall: the Party Wall etc. Act 1996 applies in England and Wales, and a party structure notice must be served at least two months before that work starts. We arrange it through a party wall surveyor.

Planning to take a wall out?

Book a free survey visit. You get an itemised written quote covering calculations, building control, steel and making good.