Rendering in Rotherham

From one patch to a whole street

A domestic job is usually one house, one owner and one or two walls at a time. The work starts with a close look at the render: tapping it to find areas that sound hollow, following cracks to see where they start, and checking the sills, gutters, downpipes and the base of the wall where render often runs over the damp-proof course. Failed render is cut or hacked off, the brick is repaired, beads are fixed and new coats are built up and protected until they set.

Larger contracts, such as a block of flats, a retail unit or a row of houses refurbished together, use the same materials but are organised differently. Render is sprayed by machine, façades are set out in panels with beads and movement joints so each can be finished in one session, and a test panel of around two square metres, as K Rend recommends for its systems, fixes the colour and texture before the main work starts.

Matching the job to the wall

Start from the condition of what is already there. Render that sounds solid, with only fine crazing, can be cleaned and given a new colour by respraying. Isolated hollow patches and cracks that let rain in call for render repairs, cut back to a firm edge and rebuilt in matching coats. When hollow areas run across most of a wall, or old dash is bulging and shedding stones, the render has to come off and be replaced, either across the whole house or on single walls.

Two other routes depend on the building. Old stone and soft-brick walls that need to dry out are better with lime render than cement, which SPAB warns can trap water in them. Solid walls that are being stripped anyway may be candidates for external wall insulation, which wraps the wall in boards and reinforced render; re-rendering most of a wall can also bring an insulation upgrade under Approved Document L where it is feasible.

Cracks and coal mining

Most render cracks are shrinkage or small movements around openings. Some are not. GOV.UK's subsidence guidance says coal mining subsidence can begin with cracked plaster and sticking doors, that a chartered surveyor can establish whether mining is the cause, and that claims go to the Mining Remediation Authority. Its guide to owners' rights asks for claims within six years of damage becoming apparent and for no repairs to be arranged before the mine owner has been consulted, other than urgent work to prevent further damage. If a crack is wide, stepped or growing, photograph and date it before it is filled.

Planning, conservation and design guides

Rotherham has 28 conservation areas, shown on the council's planning maps. National guidance says rendering or pebble-dashing a house within one is not permitted development and needs a planning application. The council has also adopted a householder design guide for extensions, in October 2025, and a separate shop front design guide, in June 2020, so a domestic extension and a commercial frontage start from different documents.

The service pages explain each type of work step by step, including the materials, the coats and their thicknesses where manufacturers publish them, and the details that tend to fail. The articles look at particular situations, from damage beside downpipes to partial pebbledash replacement. None of it is a quotation; it is a guide to what good work on your walls involves.