Swindon expands thermal road patching programme

Swindon Borough Council is expanding the use of infrared road repair technology within a highways maintenance programme worth more than £650,000. Contractor Connor Construction South West Ltd is carrying out road and footpath repairs, renewing markings and clearing gullies, with thermal patching being used on areas that can be repaired without resurfacing an entire carriageway. The council says the wider use of the method follows a successful trial last year and is intended to reduce repeated interventions at damaged locations.

Infrared patching heats the upper asphalt layer so that existing surfacing can be worked back into a repair with a limited quantity of fresh material. That differs from conventional patch excavation, where damaged material is cut out before replacement and compaction. Swindon’s contractor is using the technique on suitable larger defects, allowing targeted renewal without resurfacing whole roads. The council expects the approach to reduce repeated short-term interventions after a local trial last year, although not every road defect can be treated by heating the surface.

The condition beneath the visible road surface determines whether a shallow treatment is appropriate. Heat can soften an existing asphalt layer, but it cannot rebuild a weakened base, correct extensive deformation, or resolve drainage failure below the pavement. Where deterioration extends deeper into the road structure, excavation or broader resurfacing may still be required. The council’s published information identifies an expansion of the technique, not independent durability testing or a quantified service-life advantage over every conventional repair method.

Works have already been carried out in Swindon’s Ridgeway ward, with crews set to move into other parts of the borough in coming months. The current programme also includes relining at road junctions and on major routes, together with footpath improvements. Dorcan Way is among the footway locations where resurfacing has recently been completed, showing that the programme is broader than the use of a single asphalt repair method.

Road markings and gully cleaning accompany the carriageway repairs. Freshly patched surfaces need traffic markings to remain visible, while gullies must be kept clear so that water can leave the highway rather than collect around damaged surfacing. The contractor is delivering these maintenance tasks alongside footpath works, including recent resurfacing on Dorcan Way. The £650,000-plus programme is therefore a combined local maintenance operation and should not be read as a dedicated allocation for infrared equipment or a single repair process.

More than 20 roads were improved during the earlier summer resurfacing programme, including Station Road, Colebrook Road, Eastcott Road, and Bath Road. That work involved broader road treatment than the current targeted patching. The authority’s maintenance approach now combines planned resurfacing with smaller repairs selected according to defect type, traffic conditions, and the extent of deterioration. Keeping the methods separate is important because renewing an entire surface and correcting a localised defect require different quantities of material and traffic management.

Almost £6m has been allocated to Swindon’s highways and pathways during the 2026/27 financial year. Within that total, £1.6m is identified for planned maintenance and surface dressing on major carriageways, £1.3m for minor-road maintenance, and £200,000 for reactive pothole repairs. Other spending covers road markings, drainage, street furniture, and traffic signal maintenance. These allocations provide the budgetary context for the current £650,000-plus programme, rather than describing separate sums that can all be added to its contract value.

The council is moving the new patching method into further wards after work in Ridgeway. Thermal repairs may suit defects where the asphalt remains usable, while deeper structural failure or extensive surface degradation calls for another intervention. Selecting which roads receive each treatment is therefore a maintenance and engineering decision, not simply a choice between cheaper and more expensive plant. Swindon has linked the expanded programme to longer-lasting work and fewer return visits, with no published count yet of the patches planned for this phase.

Councillor Nick Gardiner, cabinet member for highways and transport, said the authority was placing more emphasis on repairs intended to last and on using its maintenance funding effectively. He also acknowledged that works can cause short-term disruption, with traffic management used where practicable to maintain access. Arrangements will vary by location and repair method: infrared patching can avoid some closures, while larger resurfacing or works around junctions may still require more substantial controls.

Reworking part of an existing asphalt layer can reduce the amount of material that must be removed and brought to site in a suitable surface repair. Any quantified environmental or economic benefit would nevertheless depend on the area treated, the new material added, equipment energy use, traffic management, and repair lifespan. Swindon has not provided a comparative carbon assessment or cost-per-square-metre figure for the current infrared programme, so its present case rests on the operational experience of the trial and its stated maintenance priorities.

Connor Construction South West will continue into other parts of Swindon, undertaking thermal patching where suitable alongside resurfacing, relining, and drainage maintenance. The council has not given a borough-wide completion date or a final count of repairs within the £650,000-plus package. The measurable result will be the extent and durability of completed work against the authority’s larger planned and reactive highway maintenance programme.