For more than 25 years, Carnell have provided specialist maintenance and cost-effective innovations that help the successful operation and management of the highways network. Carnell have a proven track record of collaborating with our clients and other supply-chain members to safely deliver excellence and certainty of outcome.

We operate across the country with a workforce of approximately 300 operatives, most of whom are trained to work across our different disciplines.  Our activities can be broadly grouped into Civils, Infrastructure, Drainage, Surveys, Lighting, Electrical and Technology works.

We have undertaken dozens of schemes for Local Authorities and have achieved RoSPA President’s Award (11 Gold Awards). We are certified to ISO 9001 (Quality), ISO 14001 (Environmental), 44001 (Collaboration) and 45001 (Health & Safety).

Paul Swann

Operations Director

Paul has 25 years of experience working on a variety of highways projects for Carnell and Costain. He is a chartered civil engineer.

Rodney Robb

Operations Manager

Rod leads Carnell’s Water Management team, responsible for specialist drainage surveys including jetting, GPS and CCTV surveys.

Darran Thorn

Operations Manager

Darran comes from an engineering background and brings technical and planning expertise in civils, drainage and infrastructure projects.

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Our Services


General civils infrastructure and drainage for construction and maintenenance. We have experience in successfully delivering schemes such as roundabout enlargements as principal contractor including earthworks, deep drainage, kerbing and road formation.

Drainage Asset Management

GPS asset inventory & CCTV pipework condition surveys using our fully trained teams, survey vehicles and equipment. Our in-house technical services team process all the drainage data so that it can be reported to your particular specifications or presented using our custom GIS.


Installation, renewal and maintenance of technology assets such as communications equipment, message signs, ducting and cabling. In addition we undertake street lighting upgrades, including cable replacement, lantern upgrades, feeder pillar refurb and label upgrades.  Services also include undertaking electrical surveys and producing accurate design drawings and BoQ.

Our Products