Steel BeamInstallers
Rear wall opened for wide doors with a galvanised steel beam and props, garden beyond

Bi-fold & sliding door openings · Stratford-upon-Avon

Bi-fold & sliding door openings in Stratford-upon-Avon

Bi-fold & sliding door openings in Stratford-upon-Avon, from free survey to completion certificate.

  • Itemised written quote
  • Beam sized by a structural engineer
  • Covering Stratford-upon-Avon and nearby

Free survey in Stratford-upon-Avon

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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

Planning bi-fold & sliding door openings in Stratford-upon-Avon

Planning bi-fold & sliding door openings in Stratford-upon-Avon? Our team covers CV37 and the streets around them. We also cover the surrounding towns and villages in Warwickshire. You get one written quote for the calculations, approvals, propping, steel and making good.

We coordinate the structure with your door supplier's sizes, so the finished opening matches the frame. The survey visit, structural calculations from a qualified engineer, building control, propping, steel, cavity trays, weather protection while the wall is open and making good are all covered in one itemised written quote.

Things to plan for

  • Both leaves of a cavity wall need support over the opening. Depending on the design, the outer brickwork may sit on a plate fixed to the beam or on a separate external lintel, and the engineer specifies which suits the loads and the look.
  • The house is open to the weather between taking out the wall and fitting the doors. Temporary sheeting or a boarded frame keeps rain out and the house secure, so the gap between the structural work and door fitting should be kept short.
  • Door suppliers quote a structural opening size, which allows for the frame and fixing tolerances. Agreeing that size before the steel is designed avoids reveals that are too tight or gaps that have to be packed out later.
  • Width, what sits above, whether columns or a goalpost are needed, outer leaf support, threshold works and how much brickwork needs matching all affect the price. The doors themselves are normally supplied separately unless agreed otherwise.
  • Very wide openings, or ones that run close to the corner of the house, may leave too little wall for the beam to bear on. In that case the engineer may specify steel columns or a goalpost frame standing on its own foundations.

From survey to sign-off in Stratford-upon-Avon

  1. Free visit

    A short visit to Stratford-upon-Avon to see the job, agree what you want and check the bearings, floors and services that affect the design.

  2. Calculations

    The engineer's calculations and a simple drawing are prepared for your opening and shared with you before anything is ordered.

  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. Steel in, made good

    On site we prop, open up, fit and pack the steel, then fire protect, box in and plaster once the inspection is done.

How much should I budget in Stratford-upon-Avon?

As a guide, budget £2,500–£7,000 including VAT for rear wall opening for bi-fold or sliding doors in Stratford-upon-Avon, based on published UK cost guides adjusted for prices in the West Midlands (no adjustment).

JobTypical guide rangeWhat it usually covers
Rear wall opening for bi-fold or sliding doors£2,500–£7,000External wall opened up to about 5 m with steel, propping, cavity tray and making good (doors supplied separately)
Structural calculations for a beam£250–£750Site measure or photos, beam and padstone design and calculations for building control
RSJ supply and fit (single beam)£800–£2,500 per beamBeam supplied, delivered, lifted and packed on padstones, with propping (calculations and approval priced separately)
Lintel replacement£400–£1,200 per lintelPropping, removing the old lintel, new lintel set on beds and brickwork made good

Figures include our approximate regional adjustment for prices in the West Midlands (no adjustment) and are rounded. How these figures are worked out.

Approvals in Stratford-upon-Avon

In England, taking out a load-bearing wall or putting in a beam is building work under the Building Regulations 2010. It needs approval from building control, either the local council's building control team or a registered building control approver, through a full plans application or a building notice. Part A covers the structure and Part B covers fire safety, which is why steel in homes is usually fire protected.

Terraced and semi-detached homes often need party wall notices, because cutting into a shared wall to take a beam end is notifiable under the Party Wall etc. Act 1996. Allow at least two months for the notice period unless your neighbour agrees sooner.

Building rules in England

Bi-fold & sliding door openings near Stratford-upon-Avon

Bi-fold & sliding door openings in Stratford-upon-Avon: your questions

Do you also work near Stratford-upon-Avon?

Yes. We also cover nearby towns including Warwick, Leamington Spa, Kenilworth and Evesham.

What happens at the survey visit in Stratford-upon-Avon?

We look at the wall, the floor and ceiling either side and what sits above, measure the opening you want, and note cables, pipes and access for the steel. It usually takes under an hour and there is no charge.

How wide can a bi-fold door opening be?

There is no fixed limit, as it depends on the loads above and what the beam can bear on. The engineer designs the steel and, for very wide openings or ones near a corner, may specify columns or a goalpost frame. The door system's own maximum panel sizes and configurations also need checking.

Do I need planning permission for bi-fold doors?

Usually not for a rear opening in a house, as this generally falls within permitted development. Planning or another consent may be needed for front elevations, flats, listed buildings, conservation areas with extra controls, or homes where permitted development rights have been removed. We flag this at survey so you can check before work is booked.

How long does it take to make an opening for bi-fold doors?

The structural opening usually takes three to five working days, including propping, cutting out the wall, fitting the steel and outer leaf support, and forming the reveals. The doors can then be fitted, with inside making good and outside brickwork finishing following on. Lead times on made-to-order doors affect the overall timeline more than the steelwork.

Do you cover Stratford-upon-Avon for bi-fold & sliding door openings?

Yes. We carry out bi-fold & sliding door openings in Stratford-upon-Avon and the CV37 postcode districts. Book a free survey visit and we will check the wall, arrange the engineer's calculations and send an itemised written quote.

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.