St Peter Port·Professional Service
✦Active since 1975
RICS-regulated architectural and surveying practice in St Peter Port, established 1975.
Twenty-four firms across a century — ten civil-structural consultancies (CBL, Hartigan, T&G), a chartered surveying practice (Marquis — the only one of its kind in the Channel Islands), and a contractor-fabricator cohort led by Rihoy & Son (1924, the CI's first Chartered Building Company). Concentrated in St Peter Port (7) and Vale (6). —
To auto-generate a shortlist, pick from the options below (or tick businesses from the directory to build your shortlist manually).
St Peter Port·Professional Service
✦Active since 1975
RICS-regulated architectural and surveying practice in St Peter Port, established 1975.
St Peter Port·Professional Service
✦Active since 1971
Civil and structural engineering consultancy, established in 1971 as Guernsey's first locally-based consulting engineers and certified by ACE and IStructE.
St Sampson·Service
✦1924 centenary firm
Family-owned across four generations
Family-owned construction company founded in 1924, offering new builds, refurbishment, and bespoke joinery for residential, commercial, and public-sector clients.
St Peter Port·Professional Service·Est. 1990
Part of T&G Group of Companies
Structural and civil engineering consultancy in St Peter Port, offering design, surveys, and project management services.
St Peter Port·Professional Service·Est. 1997
The Channel Islands' only RICS-regulated chartered land and engineering surveying consultancy, founded in 1997.
—·Professional Service·Est. 1981
Civil and structural engineering consultancy established in 1981, serving Jersey and Guernsey.
Vale·Service·Est. 1990
Part of Keda Group (CI) Limited
Civil and marine construction company offering steel fabrication, welding, and crane hire across the Channel Islands and beyond.
St Sampson·Professional Service·Est. 1982
Engineering Council registered civil and structural engineering consultancy, specialising in structural glass, oak frame design, and historic building renovation.
Vale·Service·Est. 1998
Part of Formerly Garenne Group (independent since November 2022 via management buy-out)
Civil engineering and marine construction contractor established in Guernsey in 1998, operating across the Channel Islands.
St Peter Port·Professional Service·Est. 1984
Part of Hartigan (Jersey HQ: Titan House, Liberation Square, St Helier)
Multidisciplinary consulting engineering practice offering structural, civil, geotechnical, environmental, and historic building conservation services across the Channel Islands.
St Sampson·Service·Est. 1996
Metalwork and fabrication specialist established in 1996, offering bespoke fabrication, coded welding, and laser cleaning with a team of over 20 in St Sampson.
Torteval·Professional Service·Est. 2008
Torteval-based building consultancy offering architectural design, civil and structural engineering, and planning services.
Vale·Organization
Part of Annandale Limited
Annandale Structural Concrete (ASC) manufactures pre-cast and pre-stressed concrete products, including lintels, sills, and beam & block flooring, for the Channel Islands construction industry.
St Peter Port·Organization
Part of Trant Engineering Ltd
Civil engineering contractor and approved utility contractor, the Guernsey arm of Trant Engineering Ltd.
Forest·Organization·Est. 1994
Forest-based civil and structural engineering firm established in 1994, specialising in concreting, drainage, and scaffolding, with plant hire available across the Bailiwick and UK.
Vale·Service·Est. 2005
Vale-based Guernsey construction company specialising in residential new builds, extensions, refurbishments, and groundworks.
St Peter Port·Service·Est. 2007
Working-at-height safety specialist serving Guernsey and Jersey, offering fall protection, rope access, inspections, and training.
Forest·Service
Guernsey construction contractor offering groundworks, extensions, renovations, new builds, and landscaping services.
St Pierre du Bois·Service·Est. 2011
Limited company established in 2011, specialising in new builds, extensions, renovations, drainage, and groundworks across Guernsey.
—·Organization
Channel Islands trenchless technology and excavation contractor.
St Sampson·Organization·Est. 2010
Part of Associated with J W Rihoy & Son Ltd (directors Gavin and Jeremy Rihoy)
NSP Civil Engineering Limited, trading as NSP Foundations Ltd, is a civil engineering and foundation piling specialist based in St Sampson.
Vale·Organization
Described as Guernsey's oldest welding and fabrication company, offering structural steel, balustrades, cladding, and fire escapes.
Vale·Service·Est. 1993
Vale-based construction company offering residential, commercial, and civil engineering services.
Torteval·Service
Small Torteval building company specialising in patios, pathways, fences, paving, walls, and drainage.