Tonic Construction Ltd · Company 03845459 · Trading heritage since 1999
Active, accounts up to date·main contractor & subcontractor·Head office Swindon
Tonic Construction Ltd, established in 1999, is a successful civil engineering and groundwork contractor based in Swindon, Wiltshire. The company has experienced sustainable growth annually and is now employee-owned, with all employees becoming shareholders, fostering dedication to high-quality service. With a professional management team led by Managing Director Tony Iles, Tonic Construction employs 120 skilled operatives and supervisors.
The company offers a comprehensive service including in-house project management, engineering, surveying, estimating, and plant hire divisions. They pride themselves on delivering efficient, reliable, and economic solutions, regardless of project size or location, utilizing the latest computer-aided systems alongside a direct workforce and significant owned plant. Tonic Construction is committed to delivering the highest quality of service, with a strong focus on attention to specification, detail, and high standards of construction.
Their commitment to training, health & safety, and the environment is paramount, with ongoing training offered to all employees to ensure optimum competence. They have also collaborated with the HSE and other groundwork contractors to form the Southwest house building ground workers safety forum to improve industry best practices.
Undertake the full groundworks and civil engineering package for residential developments, from single bespoke projects to developments of 900-plus units. Services include show home creations, hard landscaping, ground remediation, screen and retaining walls, sustainable domestic drainage, and land regrading.
Installation and management of major civil engineering projects including roads construction, footpath and cycleway construction, mains service installation, specialist concrete and attenuation systems, culvert and large diameter pipelines, reinforced concrete structures, and infrastructures.
Works to the public highway set out within a section 278 agreement, including roundabouts, junctions, pedestrian and cyclist facilities, or junction improvement. Liaise with suppliers to ensure the right products are used for best design solutions.
Customised fleet of high-spec road sweepers available for contract hire. Ensures waste produced from works is treated correctly, recorded, and in compliance with Site Waste Management Plans, with consideration for the environment.
Fully managed package to work with archaeologists on site during intrusive investigation, ensuring pre-construction work does not affect site feasibility. Includes specialist plant, topsoil and spoil management, safe access, temporary parking, site office, welfare facilities, and neighbourhood communication.
Turnkey groundworks service for educational buildings, car parks, showrooms, offices, industrial units, and warehouses. Focuses on meeting key dates and milestones while maintaining high standards of work and a safe working environment.
national housing companies, management contractors, local authorities.
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Tonic Construction Ltd is a Swindon-based civil engineering and groundwork contractor working for national housing companies, management contractors, and local authorities in the South West. Their listed services include Civil engineering, Groundworks, Road surfacing, Drainage and Concrete works.
Tonic Construction Ltd is registered at The Coach House, Berwick Bassett, Swindon, SN4 9NF, in South West.
Tonic Construction Ltd states that it works across Swindon, Wiltshire and South West.
Accounts filed for the year to 2025 report 102 employees, which places the company in the 50-249 employees band.
Tonic Construction Ltd reported turnover of £32.3m in accounts filed for the year to 2025.
Companies House lists Tonic Construction Ltd as active, with accounts most recently made up to 2025-03-31.
Tonic Construction Ltd displays Worksafe Contractor, SMAS accreditation and CHAS on its website.
Tonic Construction Ltd works in Residential, Commercial and Infrastructure.
Tonic Construction Ltd was incorporated on 1999-09-21.
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