Leaders in the field

Tonic Construction Ltd is a successful Swindon-based civil engineering and groundwork’s contractor. The company works extensively for a number of national housing companies, management contractors and local authorities in the South West.

Tonic Construction Ltd was established in 1999 and has had sustainable growth every year since. Tony Iles is managing director of Tonic Construction Ltd and has a professional management team around him to whom employs a workforce of 120 skilled operatives and supervisors that conduct themselves in both a personal and professional manner at all times.

Tonic Construction has recently become an employee owned with every employee becoming shareholder in the business adding further dedication to delivering the highest quality of service and looking after our clients.


An efficient, reliable and economic solution to every project.


A passion for excellence, and a safe working environment.


Building the future of construction and civil engineering.

Our core services


  • Foundations (rafts, piling, ring beams, trench fill traditional)
  • Sub-structure blockwork and brickwork
  • Flooring (traditional ground bearing, in situ suspended, block and beam)
  • House drainage (including sustainable drainage systems)
  • Domestic services
  • External works

Civil engineering

  • Infrastructure road, sewers and mains services
  • Culverts and large diameter pipelines
  • Reinforced concrete structures
  • Bridgeworks
  • Pumping stations
  • Attenuation and balancing ponds
  • Pipe-jacking
  • Auger boring
  • Directional drilling
  • Footpaths and cycleways
  • Section 278 works – contracts undertaking

Estate completions

  • Drainage and manhole repairs
  • Highway maintenance and adoption works
  • As built surveys
  • Road and gulley cleaning

Waste management

  • SWMP logistics
  • Site clearance
  • Landfilling
  • Contaminated waste removal
  • Road sweeping

Foundations you can

build on

Latest news

JCB Hi-Viz FTD launch

It was the launch of the new JCB site safe dumpers yesterday and their new Hi-Viz FTD is a credit to them, well done JCB for taking FTD to the next level, let’s keep the momentum going and make open cabbed dumpers a thing of the past in the UK construction industry,...

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Our fleet of BMTs

Check out this great drone photo of our fleet of Bulk Material Transporters (BMT). All ready to get to work!

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