07765 923 407enquiries@srnfabrication.com Mon–Fri 8am–5pm · Sat & Sun by appointment · Free quotes & site surveys HomeAboutServicesBespoke Steel FabricationStructural Steelwork & BeamsSteel Staircases & External StairsSteel Fire EscapesSteel BalconiesBalustrades & RailingsSteel HandrailsSteel GatesSteel FencingBespoke Metalwork & Gym KitWelding ServicesStructural Steel Installation Our WorkAreasSwindonWiltshireOxfordshireSomersetBathBerkshireGloucestershireBristolMarlboroughChippenham ReviewsContact07765 923 407Get Free Quote Service · Swindon & the South West # Structural Steel BeamsCut, Drilled & Welded— Delivered Across Wiltshire. Get the exact RSJ, universal beam or column your engineer specified — cut, drilled, welded and painted in our Swindon workshop, delivered on the day you need it, and installed by a team that understands Building Control from the calc sheet to the sign-off. Get Free Quote 07765 923 407 Working to engineer's drawings & calcs · CSCS-carded team on site. Speak to the workshop 07765 923 407Mon–Fri 8am–5pm · Sat & Sun by appointment Free site survey and written quote. No obligation. Skilled Trade experience Building Regs Compliant install Free Quote & site survey 01 — Overview ## What structural steelwork & beams actually is — and when to commission it. ### What it is Structural steelwork covers the load-bearing steel that holds a building up: RSJs (rolled steel joists), universal beams (UB), universal columns (UC), lintels, portal frames, goalpost frames and connecting brackets. It's the steel Building Control cares about — the steel with a calc sheet behind it. ### Who it's for Builders and main contractors handling loft conversions, rear extensions, side-return knock-throughs and new-builds; architects and structural engineers specifying steel for a client; and homeowners in Swindon doing a Building Regs-approved renovation who need a fabricator who won't hold up the programme. ### When it's needed Any time you remove a load-bearing wall, open up a floor, add a storey, span an opening beyond the reach of a lintel, or build a portal frame. A structural engineer's calculation triggers the beam schedule — and that schedule is what we quote and fabricate to. ### Why professional help matters Structural steel is the one part of the job you cannot get wrong. Wrong section, wrong grade, wrong weld or wrong bearing and the whole structure is compromised. It's also the one part Building Control inspects. Working with a fabricator who understands keeps the programme moving and the sign-off clean. 02 — What happens if you get it wrong ## The four failures we see when structural steelwork & beams is done cheaply. ### Late steel = a stopped site A builder can't backfill around a beam that hasn't arrived. Every day of delay costs labour, machine hire and the client's patience. Late fabricators cost sites five-figure sums. ### Wrong dimensions, wrong grade A UB fabricated to the wrong length, drilled to the wrong pattern or supplied in the wrong grade fails inspection. Reworking on site is expensive; the alternative is a fresh piece and another wait. ### No paperwork for Building Control Structural steel needs to be fabricated and installed. Without that traceability, sign-off drags — or fails outright. ### Cold welds & poor bearing A beam that isn't seated properly onto a padstone or is welded cold at the connection is a structural risk. It rarely shows up on day one — it shows up when the crack appears in the plaster six months later. 03 — Our process ## From first call to signed-off installation. - Step 1 ### Free site survey & drawing review We read your engineer's calcs and drawings, visit site if needed, and confirm what needs fabricating and how it lands. - Step 2 ### Written quote & schedule Priced beam-by-beam with the section, grade, finish, delivery and install method. You know the cost and the lead time before you commit. - Step 3 ### Delivery to site Delivered to your site in Swindon or across the South West, on the date agreed with your builder or contract manager. - Step 4 ### Installation & Building Control-ready sign-off We install onto padstones or into pockets prepared by the builder, weld or bolt connections, and leave the steelwork Building Control-ready with paperwork in hand. Recent projects ## Structural steelwork & beams we've fabricated and installed. 04 — Benefits ## What you actually get when you commission this from SRN. ### On-programme delivery We work to your build schedule — not the other way round. Delivery dates are agreed and hit. ### Direct fabricator on site The fabricator turns up on site — not a subcontracted fitter who's never seen the drawings. ### Priced accurately, once No mid-job upcharges. What's on the quote is what you pay. ### Load-rated for the life of the building Correctly specified and installed steel outlives the building's finishes — not the other way round. 05 — In detail ## Materials, methods, variations — the full picture. This is the technical detail that separates a fabricator from a supplier. Read it, or skim the headings — either way, it's what you're paying for. ### Sections we fabricate Universal Beams (UB), Universal Columns (UC), Parallel Flange Channels (PFC), Rolled Steel Joists (RSJs), Rectangular and Square Hollow Sections (RHS/SHS), Circular Hollow Sections (CHS), angle, flat bar, plate and rebar. Sizes from small lintel-replacement beams through to full portal-frame primary members. ### Connections & fittings Welded end-plates, bolted flange plates, cleats, fin plates, base plates, gusset plates, stiffeners and web doublers. Padstone brackets and pocket plates prepared to your engineer's detail. ### Typical applications Loft conversions (goalpost frames and ridge beams), single- and double-storey rear extensions (opening-up beams and columns), side-return infills, knock-throughs between reception rooms, garage conversions, new-build residential frames, agricultural and light-industrial portal frames, mezzanine floors, plant-room supports and roof steels. ### Residential vs commercial Residential structural steel is typically small-run, tight-access work with a homeowner and builder on site. Commercial and light-industrial steelwork is larger sections, engineer-signed connections and often craned in. We handle both to the same fabrication standard. ### Structural steel across Wiltshire From our Swindon workshop we fabricate and deliver structural steel across Wiltshire, Oxfordshire, Somerset, Berkshire, Gloucestershire and Bristol — including Marlborough, Chippenham, Cirencester, Bath and Oxford. Roughly half of our work is for trade clients, so we're used to slotting into someone else's build programme. 06 — FAQ ## Straight answers to the questions we're asked most. Not answered here? 07765 923 407Call the workshop — you'll get a fabricator, not a call centre. How much does a structural steel beam cost?+A domestic RSJ for a loft or extension typically starts in the low hundreds for the steel itself, with fabrication, delivery and installation added. Every job is quoted from your engineer's schedule — you get a written price before you commit. What is the lead time on structural steel?+Lead times vary by project. You get an honest, written lead time with your quote — and we do our best on urgent jobs. Call the workshop and we'll be straight with you on what's possible. Do you work to my structural engineer's drawings?+Yes. We fabricate to the beam schedule and connection details supplied by your engineer, and flag anything that looks off before we cut steel. Do you install, or just supply?+Both. Most trade clients ask us to supply and install so there's one accountable party. Supply-only is available for builders who prefer to install themselves. How long does structural steel last?+Properly specified and installed internal structural steel effectively lasts for the life of the building. Can you handle urgent structural jobs?+We do our best to prioritise stopped sites. Call the workshop and we'll tell you honestly what we can turn around. Do you deliver structural steel outside Swindon?+Yes — across Wiltshire, Oxfordshire, Somerset, Berkshire, Gloucestershire and Bristol as standard. Related servicesStructural Steel Installation Read the service page → Steel Staircases & External Stairs Read the service page → Bespoke Steel Fabrication Read the service page → All services Back to the full list → Ready to quote ## Get a written quote for your structural steelwork & beams — free site survey included. One phone call, one honest survey, one written price. Experienced trade fabricators with a written guarantee on fabrication and installation. Call 07765 923 407Email the workshop Trust - Experienced trade fabricators - Building Regulations compliant - CSCS-carded site team - Written guarantee on fabrication & install Bespoke steel fabrication in Swindon, serving homeowners and trade across Wiltshire and the South West. 07765 923 407 enquiries@srnfabrication.comUnit 10, Clearwater Business Park, Frankland Rd,Swindon, SN5 8YZ Services - Bespoke Steel Fabrication - Structural Steelwork & Beams - Steel Staircases & External Stairs - Steel Fire Escapes - Steel Balconies - Balustrades & Railings - Steel Handrails - Steel Gates - Steel Fencing - Bespoke Metalwork & Gym Kit - Welding Services - Structural Steel Installation Service Areas - Swindon - Wiltshire - Oxfordshire - Somerset - Bath - Berkshire - Gloucestershire - Bristol - Marlborough - Chippenham Opening Hours - Mon–Fri8am – 5pm - Sat & SunBy appointmentFind UsGoogleYell © 2026 SRN Fabrication Ltd. All rights reserved. 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