SERVICE DETAIL
Structural alterations & steelwork in Hertfordshire & North London.
Safe load-bearing wall removals, calculated RSJ steel installations, and floor plan reconfigurations.
ENGINEERED MASONRY & STEEL
Load-bearing wall removal & steel goalposts.
Creating an open-plan kitchen-diner or through-lounge requires the safe, calculated removal of internal load-bearing masonry without risking the structure above. As principal design-and-build contractors, Costas Joannides and the Orama team manage the complete structural sequence under one lead: independent engineer calculations, Party Wall awards, heavy Acrow needle propping, RSJ steel hoisting, and local authority Building Control sign-off. We deliver structural alterations across Hertfordshire (including Potters Bar and St Albans) and North London (including Highgate and Barnet), integrating steelwork seamlessly into home extensions, full refurbishments, and loft conversions.
VERIFIED PROJECT EVIDENCE
In our verified Highgate Victorian case study in North London, we removed the compartmentalised load-bearing rear wall and installed a structural steel frame with new padstones and concrete foundations, establishing a 5.4-metre clear opening to create a continuous 48 m² kitchen, dining and family space.
Acrow & Needle ProppedWALL REMOVALS
Load-Bearing Wall Removal & Knock-Throughs
Safe removal of internal load-bearing brick, block, and partition walls under heavy-duty Acrow needle propping, opening compartmentalised homes into connected kitchen-diners and light-filled through-lounges.
Flush Void InstallationSTEEL FRAMEWORK
Engineered RSJ Steel Beams & Goalposts
Fabricating and hoisting structural universal beams (UB/UC) and rigid steel goalposts trimmed flush into ceiling joists to eliminate downstand bulkheads and maintain flat ceilings.
Party Wall BearingROOF STRUCTURES
Loft Steels & Upper-Floor Ridge Support
Inserting structural steel beams into existing ceiling voids and party walls to carry new suspended timber floor joists and dormer structures during loft conversions.
Certified Load TransferSUBSTRUCTURE ENGINEERING
Concrete Padstones & Foundation Underpinning
Casting high-density reinforced concrete padstones and progressive bay underpinning to safely transfer concentrated structural steel loads into existing foundation substrates.
FEATURED HIGHGATE CASE STUDY
Victorian load-bearing knock-through & 5.4m steel frame.
Highgate Open-Plan Structural Steel Frame
In this four-bedroom Victorian terraced house in Highgate, North London, we removed the load-bearing rear wall and installed a 5.4-metre clear-opening structural steel frame on new concrete padstones and foundations, establishing a continuous 48 m² open-plan kitchen, dining and family space. The project coordinated independent structural engineer calculations, party wall agreement, temporary needle propping, and full Building Control sign-off under direct site leadership.
Structural Execution & Steelwork Gallery
THE TRANSFORMATION JOURNEY
Disciplined four-stage structural delivery.
A disciplined four-stage engineering sequence coordinating load-path diagnosis, Building Control statutory packs, heavy needle propping, and fire-encapsulated sign-off.
01FEASIBILITY & REVEAL
Load-Path Diagnosis & Site Survey
Costas conducts an on-site structural audit, tracing load paths from roof trusses through floor joists to determine exact bearing points and temporary support requirements.
02SPECIFICATION & APPROVAL
RSJ Calculations & Statutory Notices
Validating structural engineer calculation packs, steel flange bolt connections, padstone sizes, and lodging formal Building Control notices with the local authority.
03CONSTRUCTION & FIRST-FIX
Needle Propping & Steel Hoisting
Installing heavy Acrow props and Strongboy needles, controlled masonry removal, placing high-density concrete padstones, and precision hoisting structural RSJ steel beams.
04FINISHES & SIGN-OFF
Fireline Encapsulation & Sign-Off
Fitting double-layer fireline plasterboard, drylining, smooth plaster skims, making good subfloors, and obtaining final Building Control certificate sign-off.
SINGLE-LEAD ACCOUNTABILITY
Design, engineer, Party Wall and build under one lead.
Homeowners frequently find themselves refereeing disputes between independent structural engineers and building contractors. Orama eliminates this friction by coordinating the complete structural package under single site leadership.
01 · NO FINGER-POINTING
Site-Verified Steel Packs
Costas Joannides reviews structural engineer calculation packs on site before ordering steel, ensuring beam bearings, web cuts, and padstone tolerances match the real building, not just paper assumptions.
02 · PROACTIVE NOTICES
Party Wall Coordination
When steel bearings insert into shared party walls in terraced or semi-detached homes across Highgate, Barnet, or St Albans, notices under the Party Wall etc. Act 1996 are served and agreed upfront to prevent delays.
03 · STATUTORY SIGN-OFF
Building Control Inspections
Every critical milestone, including temporary needle propping, padstone pours, steel placement, and double-layer fireline plasterboard protection, is inspected on site by Building Control before final completion certification.
COMMON QUESTIONS
Structural Work FAQs
Answers regarding structural engineer calculations, ceiling-flushed RSJs, and party wall notices.
Yes. Any load-bearing wall removal requires structural calculations from a qualified engineer detailing steel beam sizing, deflection limits, and padstone dimensions for Building Control approval.
Yes. By trimming existing ceiling joists into the web of the steel beam using engineered joist hangers (known as a flushed steel installation), we eliminate downstand bulkheads and create a flat ceiling plane across open spans.
If structural steels bear into a shared party wall or excavations fall within three metres of an adjoining owner's foundations, formal notices under the Party Wall etc. Act 1996 are legally required before starting works.
Orama coordinates all statutory notices and on-site Building Control inspections directly. The inspector reviews padstone casting, steel positioning, and fireline encapsulation before issuing the final completion certificate.
Structural alteration costs depend on the length of the opening, steel profile weight and span, temporary propping complexity (such as multi-storey Acrow and Strongboy needle support), padstone and foundation requirements, and whether the beam is flushed into the ceiling void or left as a downstand.
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