About Us

Blackwell Building Services is a friendly family run business based on St Mary’s and established for over 20 years.

We work with private and commercial clients and pride ourselves on efficiency in completing projects on time, within budget and to our client’s specifications.

Our committed team of skilled contractors, including fully qualified plumbers and NIC approved electricians, have a wealth of experience and are dedicated to finishing works to the highest standard.

We can manage your build, be it a new house to holiday home refurbishment, from start to finish, liaising directly with your architect, service providers, Isles of Scilly Council planning department and all other parties necessary to complete the project.


We are experienced in civil and infrastructure work including road and pathways, sea defence including quay wall and surfacing, outfall drainage, logistical movements to and from the islands including contracts to move over 3,000 tonnes of legacy refuse from the council waste management site.

As a professional building company we operate with full liability insurance providing peace of mind for all parties involved. Having building works in your home or premises can be stressful and disruptive. Blackwell Building Services endeavour to minimise this by adhering to timeframes specified and always leaving the work area clean and tidy.

The Isles of Scilly is an Area of Outstanding Natural Beauty and as such, we are committed to reducing our environmental impact wherever possible and building for a sustainable future on the islands.

We look forward to welcoming you as a client.

Our Services

  • New Build

  • Conversions

  • Roofing

  • Conservatories

  • Joinery

  • Drainage

  • Plastering

  • Renovation

  • Extensions

  • Kitchen and Bathrooms

  • Masonry

  • Tiling, painting and decorating

  • Landscaping

  • Patios and decking

  • Concrete works

  • Roads & Utilities

  • Coastal Protection

  • Wastewater Management

  • Surface water & Drainage systems

  • Sewer diversions/connections

  • Flood alleviation works

  • Reinforced concrete infrastructure

  • Agricultural build

  • Manhole construction

  • Steel frame building

  • Brickwork & masonry

If you wish to discuss details of your requirements or for a free, no obligation competitive quote, please contact us.