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Island Graph/All niches/Manufacturing & Industry/Engineering

Civil & Structural Engineering

24 active businessesCompare

Twenty-four firms — a chartered-consultancy core (CBL, Hartigan, Marquis Surveys), marine and ground-engineering contractors (Geomarine, NSP, Siteweld), and steel fabricators (Guernsey Metals). Twenty are limited companies; six belong to the Chamber of Commerce. The oldest, Rihoy & Son, has traded since 1924; the newest opened in 2011. —

Founded between 1924 and 2011

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

St Peter Port·Professional services

✦Active since 1975

RICSMulti disciplinary practicePrivately heldBoutique 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 services

✦Active since 1971

Engineering consultancyIndependent advisoryHomeowner residentialSMELimited 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

✦1924 centenary firm

Family-owned across four generations

Accessible entrancePrivately heldAccessible parkingLimited 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 services·Est. 1990

Part of T&G Group of Companies

Commercial landlordEngineering consultancyBoutique consultancyHomeowner residentialBailiwick-wide

Civil and structural engineering firm established in 1990, providing design, surveys, and project management services across the Channel Islands.

Phone+441481714344
Webtag.je
Emailhello@tandg.gg

RGA Consulting Engineers Limited

—·Professional services·Est. 1981

Independent advisorySMEBailiwick-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·Est. 1990

Part of Keda Group (CI) Limited

Accessible parkingSMEBailiwick-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

Marquis Surveys Limited

St Peter Port·Professional services·Est. 1997

RICSBoutique practiceHomeowner 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

Guernsey Metals

St Sampson·Est. 1996

BusinessesLimited 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

CBL Consulting

St Sampson·Professional services·Est. 1982

DeveloperHigh net worth individualsCommercial landlordContractorEngineering consultancy

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·Est. 1998

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

Accessible entranceBusinessesAccessible parkingIndependent advisoryBailiwick-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 services·Est. 1984

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

ContractorMulti disciplinary practiceIndependent advisoryLimited company

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

Annandale Structural Concrete

Vale

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

Martel Design Ltd

Torteval·Professional services

Boutique consultancySMEBailiwick-wideLimited company

Architectural design firm offering architectural design and building engineering services across Guernsey and the Channel Islands.

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

UCF Civil Engineering Ltd

Forest·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

P Trant (Guernsey) Ltd

St Peter Port

Part of Trant Engineering Ltd

Bailiwick-wideLimited company

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

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

Crocker Build

Vale·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

Castle Construction Ltd

Forest

Limited company

Builder specialising in groundworks, drainage, extensions, garages, renovations, hard landscaping, new builds, oak frame structures, blocklaying, brickwork, and sub-contracting.

Phone+447781411853
Webcastle.gg
Emailtghcastle@gmail.com

Edge Protection Systems Ltd

St Peter Port

Limited company

Specialist working-at-height safety company with over 17 years of experience in fall protection, offering system design, installation, and training for Guernsey and Jersey.

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

S & S Construction Ltd.

St Pierre du Bois·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

—

Bailiwick-wide

Channel Islands trenchless technology and excavation contractor.

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

Phoenix Construction (1993) Ltd

Vale·Est. 1993

Limited company

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

Phone+441481246988
Webcrocker.gg

NSP Civil Engineering Limited

St Sampson·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

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

Alabaster Austin Construction

Torteval

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

Phone+441481257056

Other niches in Engineering

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  • Marine Engineering17
  • Electrical Engineering9