Infrastructure Services

About Underhill Infrastructure Services

The South West's leading Infrastructure Service Provider

Underhill Infrastructure Services (UIS) is the leading provider of infrastructure services throughout the South West Region. UIS is a division of the Underhill Group and bolsters our ability to deliver the best possible quality & value to our customers.

We operate from a 90,000 Square foot manufacturing facility on an eight acre site from our Group Headquarters in Plymouth, Devon and on-site across the South West & the rest of the UK. We have a purpose built, high volume, off site fabrication facility well suited to the segregation of carbon, stainless and alloy materials.

We tailor complete turnkey solutions to suit both customer & industry requirements. With an excellent reputation for delivering value & quality, whilst remaining flexible with tailored customers solutions including; Design, Fabrication, Welding, Coatings & Installation. This includes solutions for Rail & Highways.


We’re proud of our focus on quality and with an excellent understanding across many industry sectors, we are able to offer the best value solution for your business. We offer a personal, yet professional service that ensures flexibility, support and collaborative working. Underhill Infrastructure Services offers a secure pair of hands, always operating within the guidelines of all recognised industry standards.



All Underhill Infrastructure Services customers are completely unique and we will work with you to ensure we deliver the best possible solution to meet the needs of your business, whilst ensuring that value for money is achieved.


Our skills, expertise & commitment to ensuring quality in every project we work on with our customers is paramount and this is backed up by the accreditations we carry for quality, skill & workmanship.

We know how important the consideration of through life maintenance costs are and we now offer an Underhill ‘Lifetime to First Maintenance’ guarantee on every project.


Although we offer best value and best quality, we also understand that building relationships with our is vitally important. With UIS you can expect regular communication from, along with a consistent approach to prioritising your needs, this in turn means you will receive service levels that meet your expectations.

Client Feedback

“I would happily recommend you to any potential Client”

Cornwall City Council