RSJ and Steel Beam Installation Royston

When a load bearing wall comes out of a Royston house, the steel beam known as an RSJ picks up what it used to carry. We handle everything around that steel: surveying, temporary props, padstones under each end, making good afterwards and booking inspections. Every Royston steel goes in to figures worked out by the structural engineer we bring in. We never write those calculations ourselves. This page sets out what an RSJ job on a Royston property involves, and who signs it off.

For Royston, on London-derived ranges a steel beam for one opening typically costs £1,500 to £4,000 fitted and signed off, or £2,500 to £6,500 or more for a full knock-through with the engineer's fee and making good; Hertfordshire work generally runs below that. GS Renovation Ltd, a building contractor based in Potters Bar, does the work in Royston.

How the job runs

1. Free site survey at your Royston address and an itemised quote.
2. The engineer we appoint sizes the beam, and the work is registered with Hertfordshire Building Control or an approved inspector. On a shared wall you serve the party wall notice as building owner; we supply the drawings.
3. Props go in, the opening is cut and the beam is set on padstones, packed tight above.
4. Building control inspects the steel before it is covered. We make good, and the completion certificate follows.

Building control for a Royston beam goes to Hertfordshire Building Control, not to the council

Royston's building control comes from Hertfordshire Building Control Limited, which North Herts Council owns together with seven other local authorities in Hertfordshire. The council does not run the service in house. The notice for your beam is therefore submitted to that company rather than to a council department.

Incorporated on 5 February 2016 as company number 09990656, it has its registered office in the Welwyn Hatfield Borough Council offices at The Campus, Welwyn Garden City AL8 6AE. Submitting the application and fixing inspection dates to suit the Royston programme is our job. That way an inspector sees the props, the bearings and the completed steel while each is still exposed.

Housing in Royston

About 8,040 homes are listed for Royston, and the mix is 80% houses to 20% flats, with 86% built after 1945, 4% in 1919 to 1939 and 10% earlier. A beam in a terrace in Royston often bears on the party wall, bringing in the Party Wall Act, and 26% of homes here are terraced.

A beam lands on two small points, and in central Royston those points sit over chalk

British Geological Survey 1:50,000 mapping, sheet 204 Biggleswade, gives the bedrock beneath Royston town centre as the Holywell Nodular Chalk Formation. The same survey records no superficial deposit across the centre of the town, so chalk lies immediately beneath the topsoil rather than beneath clay or gravel.

That matters where a padstone, a new pier or a strengthened footing has to carry down. A steel beam concentrates everything above it onto two bearing points, and what those points bear on is a question to settle before the steel is ordered. Before that, we cut back to each bearing position, note the actual material found and send the record to our appointed engineer.

What you find when the wall is opened depends on the age of the building

Red and orange bricks made from local clays were fashionable in Royston in the 18th and early 19th centuries, and the council's conservation area assessment records the brick bond as predominantly Flemish with relatively thin joints. Flemish bond puts headers running back into the wall, which changes how a wall is needled and cut.

Timber framed buildings do survive in Royston, the same assessment notes, but render or a classical brick re-fronting hides the frame from the street. A rendered elevation is not proof of a masonry wall behind it. We establish the construction by opening up before the propping is designed, not once the props are already in.

• RSJ and structural steel beam installation
• Lintel and catnic support to smaller openings
• Flitch beams where a slimmer steel and timber solution suits

VOA Council Tax stock of properties, March 2025, for Royston North & Central and Royston South, West & East. Counts rounded by the VOA.

People planning RSJ and steel beam installation in Royston may also want home renovation in Royston, RSJ and steel beam installation in Letchworth Garden City, London builders who fit steel, the Party Wall Act when a beam bears on a shared wall, how we handle RSJ and steel beam installation across London and Cracks in Walls: When to Worry.

The GS Renovation Difference in Royston

Engineering design is not our trade; building is. On a Royston beam the structural engineer is appointed by us, we build to the calculations they issue, and the props remain until the steel is seated and bearing correctly. Our application goes to Hertfordshire Building Control, not the council, with inspections timed to our sequence. One contact covers engineer, steel, brickwork and sign off alike. GS Renovation Ltd is fully insured, company number 14611254.

Checked by Abdelaaziz Saaid, founder and director of GS Renovation Ltd (Companies House no. 14611254). Structural design is by the consulting engineer appointed to your project.