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Island Graph/All niches/Manufacturing & Industry/Engineering

Civil & Structural Engineering

24 active businessesCompare

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). —

Founded between 1924 and 2011

18 of 24 have a recorded year
19251950197520002025
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Robert W. Le Page - Architects & Chartered Surveyors

St Peter Port·Professional Service

✦Active since 1975

RICSmulti disciplinary practiceboutique consultancyhomeowner residentialbailiwick wide

RICS-regulated architectural and surveying practice in St Peter Port, established 1975.

Phone+441481725239
Webrwlp.co.gg
Emailarchitect@rwlp.co.gg

Dorey, Lyle & Ashman Ltd

St Peter Port·Professional Service

✦Active since 1971

engineering consultancyindependent advisoryhomeowner residentialsmeslimited company

Civil and structural engineering consultancy, established in 1971 as Guernsey's first locally-based consulting engineers and certified by ACE and IStructE.

Phone+441481258123
Webdla.gg
Emailhome@dla.gg

Rihoy & Son

St Sampson·Service

✦1924 centenary firm

Family-owned across four generations

accessible entranceaccessible parkingpublic sectorlimited company

Family-owned construction company founded in 1924, offering new builds, refurbishment, and bespoke joinery for residential, commercial, and public-sector clients.

Phone+441481245904
Webrihoy.com
Emailmail@rihoy.com

T&G

St Peter Port·Professional Service·Est. 1990

Part of T&G Group of Companies

commercial landlordengineering consultancyboutique consultancyhomeowner residentialbailiwick wide

Structural and civil engineering consultancy in St Peter Port, offering design, surveys, and project management services.

Phone+441481714344
Webtag.je
Emailhello@tandg.gg

Marquis Surveys Limited

St Peter Port·Professional Service·Est. 1997

RICSboutique practicepublic sectorhomeowner residentialbailiwick widelimited company

The Channel Islands' only RICS-regulated chartered land and engineering surveying consultancy, founded in 1997.

Phone+441481716669
Webmarquis-surveys.com
Emailmsl@cwgsy.net

RGA Consulting Engineers Limited

—·Professional Service·Est. 1981

independent advisorysmesbailiwick widelimited company

Civil and structural engineering consultancy established in 1981, serving Jersey and Guernsey.

Phone+441481811833
Webwww.rga.gg
Emailadmin@rga.gg

Siteweld Limited

Vale·Service·Est. 1990

Part of Keda Group (CI) Limited

accessible parkingsmesbailiwick widelimited company

Civil and marine construction company offering steel fabrication, welding, and crane hire across the Channel Islands and beyond.

Phone+441481200085
Websiteweldlimited.com
Emailsiteweld@me.com

CBL Consulting

St Sampson·Professional Service·Est. 1982

financial serviceshni individualcommercial landlordconstruction contractordeveloper

Engineering Council registered civil and structural engineering consultancy, specialising in structural glass, oak frame design, and historic building renovation.

Phone+441481244433
Webcblconsulting.gg
Emailguernsey@cblconsulting.gg

Geomarine Limited

Vale·Service·Est. 1998

Part of Formerly Garenne Group (independent since November 2022 via management buy-out)

accessible entranceaccessible parkingindependent advisorypublic sectorbailiwick wide

Civil engineering and marine construction contractor established in Guernsey in 1998, operating across the Channel Islands.

Phone+441481201015
Webgeomarine.gg
Emailenquiries@geomarine.gg

Hartigan Consulting Engineers

St Peter Port·Professional Service·Est. 1984

Part of Hartigan (Jersey HQ: Titan House, Liberation Square, St Helier)

construction contractordevelopermulti disciplinary practiceindependent advisoryhomeowner residential

Multidisciplinary consulting engineering practice offering structural, civil, geotechnical, environmental, and historic building conservation services across the Channel Islands.

Phone+441481242967
Webhartigan.co.uk
Emailadmin@hartigan.co.uk

Guernsey Metals

St Sampson·Service·Est. 1996

limited company

Metalwork and fabrication specialist established in 1996, offering bespoke fabrication, coded welding, and laser cleaning with a team of over 20 in St Sampson.

Phone+441481241192
Webg-met.gg
Emailenquiries@g-met.gg

Martel Design Ltd

Torteval·Professional Service·Est. 2008

boutique consultancysmesbailiwick widelimited company

Torteval-based building consultancy offering architectural design, civil and structural engineering, and planning services.

Phone+441481265244
Webmarteldesign.wordpress.com
Emailmarteldesign@cwgsy.net

Annandale Structural Concrete

Vale·Organization

Part of Annandale Limited

limited company

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.

Phone+441481253088
Webannandale.gg
Emailtim@asc.gg

P Trant (Guernsey) Ltd

St Peter Port·Organization

Part of Trant Engineering Ltd

public sectorbailiwick widelimited company

Civil engineering contractor and approved utility contractor, the Guernsey arm of Trant Engineering Ltd.

Phone+441481725122
Webtrant.co.uk
Emailguernsey@trant.gg

UCF Civil Engineering Ltd

Forest·Organization·Est. 1994

bailiwick widelimited company

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.

Phone+441481265559
Webwww.ucf.gg
Emailunitedformwork@cwgsy.net

Crocker Build

Vale·Service·Est. 2005

limited company

Vale-based Guernsey construction company specialising in residential new builds, extensions, refurbishments, and groundworks.

Phone+441481245400
Webcrocker.gg
Emailenquiries@crocker.gg

Edge Protection Systems Ltd

St Peter Port·Service·Est. 2007

limited company

Working-at-height safety specialist serving Guernsey and Jersey, offering fall protection, rope access, inspections, and training.

Phone+447781100079
Webedgeprotectionsystems.co.uk
Emailedgeprotectionsystems@gmail.com

Castle Construction Ltd

Forest·Service

limited company

Guernsey construction contractor offering groundworks, extensions, renovations, new builds, and landscaping services.

Phone+447781411853
Webcastle.gg
Emailtghcastle@gmail.com

S & S Construction Ltd.

St Pierre du Bois·Service·Est. 2011

limited company

Limited company established in 2011, specialising in new builds, extensions, renovations, drainage, and groundworks across Guernsey.

Phone+447839100165
Emailsimonsscltd@gmail.com

Mole Excavating

—·Organization

bailiwick wide

Channel Islands trenchless technology and excavation contractor.

Phone+447781113562
Webwww.mole-excavating.co.uk

NSP Civil Engineering Limited

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.

Phone+441481233243
Webwww.nspfoundations.com
Emailsuede@cwgsy.net

Channel Welders Ltd

Vale·Organization

limited company

Described as Guernsey's oldest welding and fabrication company, offering structural steel, balustrades, cladding, and fire escapes.

Phone+441481246262
Emailtoni.clayton@channelwelders.gg

Phoenix Construction (1993) Ltd

Vale·Service·Est. 1993

Vale-based construction company offering residential, commercial, and civil engineering services.

Phone+441481246988
Webcrocker.gg

Alabaster Austin Construction

Torteval·Service

Small Torteval building company specialising in patios, pathways, fences, paving, walls, and drainage.

Phone+441481257056

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