# SV Steel > Commercial structural steel fabrication, erection and installation across London and the South East — for architects, structural engineers, developers and main contractors. Certified to BS EN 1090-1, Execution Class 2 (EXC2). Location: Denham, West London, UB9 4HE (UK). Phone: 0800 341 1950. Email: info@svsteel.co.uk. Full site content for LLMs: [llms-full.txt](https://svsteel.co.uk/llms-full.txt) — the complete text of every page in one file. ## Services - [All services](https://svsteel.co.uk/services): Every commercial steel service — fabrication, erection, design and detailing, laser cutting, architectural metalwork and project management. - [Structural Steel Fabrication](https://svsteel.co.uk/services/structural-steel-fabrication): Beams, columns, trusses, frames and platforms for offices, residential blocks and commercial buildings. - [Steel Erection & Installation](https://svsteel.co.uk/services/steel-erection-installation): Certified site teams and heavy-lift logistics, assembling steel frames safely on commercial sites. - [Design & Steel Detailing](https://svsteel.co.uk/services/design-steel-detailing): We work straight from your architect or engineer drawings through to fabrication-ready detailing. - [Laser Cutting](https://svsteel.co.uk/services/laser-cutting): Precision laser cutting in steel, stainless and aluminium for components and architectural panels. - [Architectural Metalwork](https://svsteel.co.uk/services/architectural-metalwork): Feature staircases, balustrades and facades engineered for commercial schemes. - [Project Management](https://svsteel.co.uk/services/project-management): Full commercial steel packages, managed end to end with a single point of accountability. ## Sectors - [All sectors](https://svsteel.co.uk/sectors): The commercial sectors we fabricate structural steel for — offices, residential blocks, warehouses and industrial, retail and mixed-use. - [Offices & Commercial](https://svsteel.co.uk/sectors/offices-commercial): Steel frames for offices, commercial complexes and retail space. - [Residential Blocks & Flats](https://svsteel.co.uk/sectors/residential-blocks): Steel structures for apartment blocks and mixed-tenure residential. - [Warehouses & Industrial](https://svsteel.co.uk/sectors/warehouses-industrial): Portal frames and structural steel for warehouses and industrial units. - [Retail & Mixed-Use](https://svsteel.co.uk/sectors/retail-mixed-use): Steel for retail units and mixed-use developments. ## Accreditation - [BS EN 1090-1 EXC2](https://svsteel.co.uk/en-1090-exc2): What the execution classes mean and what EXC2 covers. ## Insights - [All insights](https://svsteel.co.uk/insights): Guides on commercial structural steel — quoting, EXC2 and execution classes, costs, detailing, timelines, fire protection and more. - [What to send a steel fabricator for a quote](https://svsteel.co.uk/insights/what-to-send-a-fabricator-for-a-steel-quote): To quote structural steelwork accurately a fabricator needs your structural engineer's drawings, a member schedule, the connection design or a delegated-design brief, and the specification: execution class, surface treatment and fire rating, plus site location, access and programme. The more complete the package, the faster the quote and the less risk we have to price in. - [EN 1090 execution classes (EXC1–EXC4) explained](https://svsteel.co.uk/insights/en-1090-execution-classes-exc1-exc4-explained): BS EN 1090 sorts structural steelwork into four execution classes, EXC1 to EXC4, by how serious the consequences of failure would be. EXC1 covers simple, low-risk structures; EXC2 is the default for most buildings; EXC3 covers higher-consequence commercial and multi-storey work; EXC4 is reserved for exceptional structures. - [Steel vs concrete frame for commercial buildings](https://svsteel.co.uk/insights/steel-vs-concrete-frame-commercial-buildings): For most commercial buildings a steel frame goes up faster, spans further with less weight and is easier to adapt later; a concrete frame can offer inherent fire resistance, thermal mass and acoustic separation. The right choice depends on programme, spans, height, foundations and budget; it is not a blanket rule. - [Structural steelwork cost per tonne in the UK: what drives it](https://svsteel.co.uk/insights/structural-steelwork-cost-per-tonne-uk): There is no single price per tonne for structural steelwork in the UK: a light, simple frame and a heavily connected multi-storey one can differ several-fold. Cost per tonne is driven by section complexity, connections, surface treatment, execution class, tonnage and current steel prices, not a fixed rate. - [Who is responsible for steel connection design?](https://svsteel.co.uk/insights/who-is-responsible-for-steel-connection-design): On UK projects, steel connection design is either retained by the structural engineer or delegated to the steelwork contractor. Both are valid, but the contract must state which. When it's delegated, the engineer provides the design forces and the fabricator designs the connections to Eurocode 3, for the engineer to check. - [Steel detailing and 3D modelling explained](https://svsteel.co.uk/insights/steel-detailing-and-3d-modelling-explained): Steel detailing turns the engineer's design into fabrication-ready information: a 3D model of every member and connection, from which shop drawings and CNC data are produced. It's the stage where clashes and connection problems are caught before any steel is cut, when they cost nothing to fix. - [Structural steel fabrication and erection timelines](https://svsteel.co.uk/insights/structural-steel-fabrication-and-erection-timelines): A steel package's programme is a chain of stages: drawing approval, steel procurement, detailing, fabrication, surface treatment, delivery and erection. There's no fixed duration; the real drivers are tonnage, complexity, how fast drawings are approved and mill lead times, and most of those you can influence. - [How to choose a structural steel subcontractor](https://svsteel.co.uk/insights/how-to-choose-a-structural-steel-subcontractor): When choosing a structural steel subcontractor, check four things above all: BS EN 1090-1 certification at the right execution class, relevant commercial experience, the capacity to hit your programme, and whether they can take detailing, fabrication and erection as one accountable package. - [UKCA marking for structural steel, explained for specifiers](https://svsteel.co.uk/insights/ukca-marking-structural-steel-explained): UKCA marking is Great Britain's post-Brexit conformity mark, the GB equivalent of CE marking. For structural steelwork it shows the fabricator's factory production control has been assessed against BS EN 1090-1 by an approved body, so the steel can be lawfully placed on the GB market. - [Steel frame for warehouses and industrial units](https://svsteel.co.uk/insights/steel-frame-for-warehouses-and-industrial-units): Warehouses and industrial units are almost always steel-framed, usually as portal frames, because steel delivers the long, column-free spans, the clear eaves height and the fast erection these buildings need, with the option to add mezzanines later. - [Steel frame for residential blocks and apartments](https://svsteel.co.uk/insights/steel-frame-for-residential-blocks): Structural steel suits multi-storey residential because it builds fast, spans far enough for open-plan apartments and flexible ground floors, and works cleanly alongside concrete cores. The trade-offs to design in early are fire protection and acoustic separation between dwellings. - [Hot-rolled vs cold-formed steel: what's the difference?](https://svsteel.co.uk/insights/hot-rolled-vs-cold-formed-steel): Hot-rolled steel is the heavy, primary structure, the beams and columns that carry a building. Cold-formed steel is light-gauge sections, formed from thin coil, used for purlins, rails and secondary framing. Most commercial frames use both, each where it's most efficient. - [Fire protection of structural steel in the UK](https://svsteel.co.uk/insights/fire-protection-of-structural-steel-uk): Structural steel loses strength as it heats, so in most buildings it must be protected to keep its load capacity for a set time in a fire. UK building regulations set that time as a fire-resistance period, and it's achieved with intumescent coating, boarding or spray protection. - [Steel mezzanine floors: design, loading and regulations](https://svsteel.co.uk/insights/steel-mezzanine-floors-design-and-regulations): A steel mezzanine adds a floor inside an existing building, for storage, offices or production, without extending the footprint. The three things that govern it are the design loading, the fire and escape requirements, and building control approval, which most mezzanines need. - [Galvanising vs painting: protecting structural steel](https://svsteel.co.uk/insights/galvanising-vs-painting-steel): Structural steel is protected from corrosion either by hot-dip galvanising, a zinc coating applied by dipping the steel in molten zinc, or by a paint system. Galvanising is durable and low-maintenance; paint offers colour and flexibility. The right choice depends on the environment, appearance and budget. ## Areas served - [All areas](https://svsteel.co.uk/areas): Structural steel fabrication and erection across London and the South East. - [Heathrow, West London](https://svsteel.co.uk/areas/heathrow): Structural steel fabrication and erection in Heathrow. - [Uxbridge, West London](https://svsteel.co.uk/areas/uxbridge): Structural steel fabrication and erection in Uxbridge. - [Slough, Berkshire](https://svsteel.co.uk/areas/slough): Structural steel fabrication and erection in Slough. - [Reading, Berkshire](https://svsteel.co.uk/areas/reading): Structural steel fabrication and erection in Reading. - [High Wycombe, Buckinghamshire](https://svsteel.co.uk/areas/high-wycombe): Structural steel fabrication and erection in High Wycombe. - [Maidenhead, Berkshire](https://svsteel.co.uk/areas/maidenhead): Structural steel fabrication and erection in Maidenhead. - [Bracknell, Berkshire](https://svsteel.co.uk/areas/bracknell): Structural steel fabrication and erection in Bracknell. - [Watford, Hertfordshire](https://svsteel.co.uk/areas/watford): Structural steel fabrication and erection in Watford. - [Hemel Hempstead, Hertfordshire](https://svsteel.co.uk/areas/hemel-hempstead): Structural steel fabrication and erection in Hemel Hempstead. - [Hayes, West London](https://svsteel.co.uk/areas/hayes): Structural steel fabrication and erection in Hayes. - [Park Royal, West London](https://svsteel.co.uk/areas/park-royal): Structural steel fabrication and erection in Park Royal. - [Wembley, Brent, North West London](https://svsteel.co.uk/areas/wembley): Structural steel fabrication and erection in Wembley. - [Ealing, West London](https://svsteel.co.uk/areas/ealing): Structural steel fabrication and erection in Ealing. - [Hounslow, West London](https://svsteel.co.uk/areas/hounslow): Structural steel fabrication and erection in Hounslow. - [Croydon, South London](https://svsteel.co.uk/areas/croydon): Structural steel fabrication and erection in Croydon. - [Stratford, East London](https://svsteel.co.uk/areas/stratford): Structural steel fabrication and erection in Stratford. - [Nine Elms, South West London](https://svsteel.co.uk/areas/nine-elms): Structural steel fabrication and erection in Nine Elms. - [Wandsworth, South West London](https://svsteel.co.uk/areas/wandsworth): Structural steel fabrication and erection in Wandsworth. - [City of London, Central London](https://svsteel.co.uk/areas/city-of-london): Structural steel fabrication and erection in City of London. - [Canary Wharf & Isle of Dogs, East London](https://svsteel.co.uk/areas/canary-wharf): Structural steel fabrication and erection in Canary Wharf & Isle of Dogs. - [King's Cross, Central London](https://svsteel.co.uk/areas/kings-cross): Structural steel fabrication and erection in King's Cross. - [Shoreditch & Old Street, East London](https://svsteel.co.uk/areas/shoreditch): Structural steel fabrication and erection in Shoreditch & Old Street. - [White City, West London](https://svsteel.co.uk/areas/white-city): Structural steel fabrication and erection in White City. - [Old Oak Common, West London](https://svsteel.co.uk/areas/old-oak-common): Structural steel fabrication and erection in Old Oak Common. - [Farringdon & Clerkenwell, Central London](https://svsteel.co.uk/areas/farringdon): Structural steel fabrication and erection in Farringdon & Clerkenwell. - [Canada Water, South East London](https://svsteel.co.uk/areas/canada-water): Structural steel fabrication and erection in Canada Water. - [Greenwich Peninsula, South East London](https://svsteel.co.uk/areas/greenwich-peninsula): Structural steel fabrication and erection in Greenwich Peninsula. - [Elephant & Castle, South London](https://svsteel.co.uk/areas/elephant-and-castle): Structural steel fabrication and erection in Elephant & Castle. - [Paddington, Central London](https://svsteel.co.uk/areas/paddington): Structural steel fabrication and erection in Paddington. - [Victoria & Westminster, Central London](https://svsteel.co.uk/areas/victoria-westminster): Structural steel fabrication and erection in Victoria & Westminster. - [Brent Cross, North London](https://svsteel.co.uk/areas/brent-cross): Structural steel fabrication and erection in Brent Cross. - [Royal Docks & Silvertown, East London](https://svsteel.co.uk/areas/royal-docks): Structural steel fabrication and erection in Royal Docks & Silvertown. ## About - [About SV Steel](https://svsteel.co.uk/about): Commercial structural steel specialist for architects, engineers, developers and main contractors across London and the South East. Fabricated to BS EN 1090-1 EXC2; detailing, fabrication and erection under one accountable team. ## Contact - [Get a quote](https://svsteel.co.uk/contact): Send architect or engineer drawings (PDF, images or CAD) for a fabrication quote.