Structural Alterations · Reading & Berkshire
Structural Alterations,
Steel Beams & Knock-Throughs
Across Reading & Berkshire
Removing a wall, opening up a kitchen-diner or putting a steel into a shopfront isn't a job for guesswork — it's engineered, signed off and built by a team that's done it hundreds of times across Berkshire homes and commercial units.
5.0 average from verified Google reviews Fully insured · 18 years building in Berkshire
Recent work
A look at projects across Berkshire.
What we do
Structural Alterations done properly — the first time.
Load-bearing wall removals, RSJ and steel beam installations, structural openings for bi-folds and bay windows, chimney breast removals, and shopfront alterations — all coordinated with a structural engineer and Building Control from quote to sign-off.
Homeowners opening up dark Victorian terraces into open-plan kitchen-diners, families adding a wider opening to the garden, landlords reconfiguring HMO layouts, and commercial tenants altering retail units, gyms and offices in Reading and Newbury.
When you want to knock through into the kitchen, take a chimney breast out, widen a doorway into a structural opening, fit bi-folds where a wall used to be, or alter the shell of a commercial unit you're fitting out.
Structural work is the one part of a build where cutting corners doesn't just look bad — it brings the ceiling down. The right steel, the right bearing, the right padstones, props sequenced correctly and Building Control sign-off in writing are what separates a 50-year alteration from a structural insurance claim.
The cost of waiting
A steel that's wrong on paper is wrong forever — and the cracks don't show up until year two.
What happens if it's ignored
- Undersized steel beams sag over time — you'll see hairline cracks open in the plaster above, doors stop closing and floors above start to bounce.
- Inadequate padstones or bearings concentrate load onto a few bricks — those bricks crush, the steel drops and the wall above it cracks in a step pattern.
- Skipping Building Control sign-off makes the alteration unmortgageable — buyers' solicitors flag it every time and the sale falls through or the price gets chipped 10%.
- Removing a chimney breast without supporting what's above (gallows brackets or a steel) is a textbook way to end up with masonry collapsing into the loft.
Mistakes we fix every month
- Letting a general builder 'eyeball' the size of a steel instead of paying for a structural engineer's calcs — usually undersized by one full section.
- Propping with a single acrow either side of the opening instead of strong-boys and a full propping plan — walls drop mid-cut.
- Hiding the steel before Building Control inspects it — they make you cut the plasterboard back open, every time.
- No regard for services in the wall — water pipes, gas runs and cables sliced through, then patched and forgotten until something fails.
Our process
A clear five-step system from first call to final handover.
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Step 1
Site Visit & Inspection
We come to you, measure up, photograph the site and listen properly to what you want from the structural alteration.
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Step 2
Written Quote & Diagnosis
You get an itemised, fixed-price quote within 48 hours — labour, materials, timings and what's specifically excluded.
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Step 3
Schedule & Prepare
We agree a start date, order materials in advance and protect your home — dust sheets, walkways, skip placement.
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Step 4
Build & Communicate
Daily progress updates from your dedicated foreman. No subcontractor merry-go-round — you see the same faces every day.
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Step 5
Sign-Off & Handover
Final walk-around with you, snags fixed on the spot — we don't leave until you're happy with the finish.
What you get
Specific outcomes — not vague promises.
Engineer-designed, signed off
Every steel and opening designed by a structural engineer with calculations, then inspected and signed off by Building Control in writing.
Built to outlast the house
Correctly sized UC/UB beams, proper padstones, intumescent or boarded fire protection — the opening behaves like it was always there.
One team, one timeline
Engineer's calcs, propping, cutting, steel, brickwork-up, plastering and decoration all sequenced by the same foreman — no gaps between trades.
Liveable through the works
Dust-sealed openings, daily clean-down, structural propping kept tidy and safe so the rest of the house keeps working around the build.
On site in weeks, not months
Most domestic knock-throughs and chimney breast removals are 5–10 days on site once calcs and sign-off are in. We tell you the schedule before you commit.
Itemised, fixed-price quote
Engineer's fees, Building Control fees, steel, padstones, propping, making good and decoration — all listed in writing so there are no mid-build surprises.
The detail
Materials, methods and variations for structural alterations in Reading.
Most Berkshire homes — Victorian and Edwardian terraces in Reading and Caversham, 1930s semis in Newbury and Thatcham, post-war detached around Basingstoke — were built with internal load-bearing walls that divide the house into small rooms. Modern living wants those walls gone. Doing it properly means engineer's calcs, the right steel, the right propping sequence and Building Control sign-off. Here's how we approach it.
Materials we work with
- Structural steel beams (UC & UB)
- Universal Beam and Universal Column sections — typically 152, 178 or 203mm depths for domestic openings, sized to the engineer's calcs based on span, point loads and brickwork above.
- Padstones & bearings
- Concrete padstones (Stressline or hand-cast) or engineering brick courses to spread the load from the steel onto the existing masonry without crushing.
- Propping equipment
- Strong-boys (under brickwork), acrow props (under joists and ceiling timbers), needles and Acrow Acrobat heads where heavy loads sit above the proposed opening.
- Fire protection
- Intumescent paint (1 or 2 coats to 30/60-minute rating) or boxed-in twin-layer plasterboard — both meet Building Control's minimum fire resistance for residential steelwork.
- Gallows brackets & chimney support
- Galvanised steel gallows brackets bolted to the party wall to carry an upper chimney breast where ground-floor and first-floor breasts are removed but the stack above stays.
Methods & techniques
- Structural opening (load-bearing knock-through)
- Engineer specifies steel, span and bearings. We prop above the line of cut with strong-boys and acrows, cut the brickwork in sections, bed padstones, lift and seat the steel, pin up to the brickwork above with slate or dry-pack mortar, then remove props once cured.
- Chimney breast removal
- Stack above supported on gallows brackets or a structural steel, lower breast cut out in sections, hearth reinstated, original joists scarfed in or replaced as needed, plasterboard and skim to finish.
- Wider bi-fold openings
- Existing window and below-window masonry removed, lintel or full steel beam installed across the new opening, cavity closer details corrected, threshold drained and a level access detail formed so bi-folds slide cleanly.
- Commercial shopfronts & retail alterations
- Existing fascia and stallriser stripped, propping sequenced to keep the upper façade safe, new structural steel for the wider opening, shopfront frame fitted and made watertight before trim and signage.
Common variations & situations
- Single-room knock-throughs (lounge into dining)
- Full kitchen-diner openings spanning 4–6m with double or triple steels
- Chimney breast removals (ground floor only or full house)
- Bay window structural alterations and bi-fold openings
- Internal stair re-positioning with new structural openings
- Garage-to-living-space conversions with infill walls and openings
- Commercial shopfront alterations in Reading, Newbury and Basingstoke
- Gym, retail and small office structural fit-outs
Residential vs commercial
Domestic structural alterations are about minimising disruption to the rest of the house, matching plaster and decoration into existing rooms, and giving the homeowner Building Control paperwork that protects future resale. Commercial alterations (shopfronts, gym fit-outs and small unit reconfigurations we do in Reading and Newbury) are about hitting fixed trading-window deadlines, coordinating with landlord licences-to-alter and protecting the public realm during the cut. We handle both with the same engineering rigour.
Common questions
What homeowners in Reading ask before booking.
Related services
Often booked alongside structural alterations
- Extensions — Single & double-storey extensions designed and built end-to-end.
- Brickwork — Specialist brickwork and pointing — the craft we built our name on.
- Groundworks — Foundations, drainage and site prep — done right the first time.
Areas we cover for structural alterations
Local structural alterations crews near you
All service areasReady when you are
Get a fixed written quote for your structural alterations — within 48 hours.
No high-pressure sales. No vague day rates. Just an itemised quote from a builder who's been on the tools for 18 years.
Fully insured 18 years on the tools Quote within 48 hours