St Sampson
✦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.
Regulated by HSEConservation & DesignAlderney Planning Office
Sixty-eight active firms — renovation (23), new builds (21), and extensions (19) dominate the work, with 17 general builders and 14 offering project management. Forty are limited companies; eight sole traders. Thirteen belong to the Guernsey Building Trades Employers' Association. The oldest, C.A. Duquemin, has been trading since 1924. —
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St Sampson
✦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
✦1924 centenary firm
Built Island War Memorial 1926
Family-owned building company established in 1924, specialising in heritage refurbishment and new build construction, with all traditional trades carried in-house.
St Martin·Est. 2012
✦Only one here offering swimming pool construction
Guernsey construction company specialising in bespoke swimming pools, pool refurbishment, and spray concrete.
St Martin·Est. 2009
CIOB-chartered building company in St Martin, established in 2009, specialising in commercial and residential construction.
St Sampson·Est. 1981
GBTEA member building contractor in St Sampson, founded in 1981 and specialising in new builds, renovation, and property maintenance.
St Sampson
Part of Ronez Limited
✦Active since 1967
The Channel Islands' sole certified asphalt contractor and supplier, providing road surfacing, construction, and related services across Guernsey and Alderney.
—·Est. 1946
✦Largest team: 2500
Family-owned civil engineering and building contractor established in 1946, with 2,500 employees and €1 billion annual turnover, appointed for the GHA's 69-home affordable housing scheme.
Vale·Est. 2011
R & D De Jersey Ltd offers carpentry, joinery, painting, decorating, and construction services for domestic and commercial clients, established 2011.
St Saviour·Est. 1990
Guernsey construction company specialising in new builds, refurbishments, renovations, and carpentry for domestic and commercial clients.
St Andrew·Est. 1988
Guernsey building contractor specialising in high-end residential construction, property development, and timber frame builds, established 1988.
Vale
Vale-based general builder offering new builds, extensions, timber frames, and groundworks for residential and commercial projects.
St Peter Port
Guernsey property investment and development company with interests spanning self-storage and residential development.
Vale
Privately owned housebuilder and property developer in Vale, delivering turn-key new build residential and commercial projects.
Vale
Robinson's Building Services offers general building, carpentry, roofing, and renovation services with over 35 years of professional experience.
St Martin·Est. 2021
Commercial builder specialising in new builds and renovations, undertaking projects from small jobs to full renovations and holding a States of Guernsey waste transport licence.
—·Est. 2015
Design-led property developer and investor focused on Guernsey, delivering commercial refurbishments and residential projects across St Peter Port.
St Sampson·Est. 2006
Building contractor established in 2006, offering construction, renovation, and trade services to domestic and commercial clients.
Vale
Sole trader specialising in bricklaying, blockwork, plastering, and new builds, notably converting a horse box into Sark's tractor-towed ambulance.
Vale
Construction company in Vale offering new builds, refurbishments, fitouts, and small works for residential and commercial clients.
St Saviour
Carpentry and building contractor with over sixty years of combined experience, serving domestic and commercial clients.
Forest
Builder specialising in groundworks, drainage, extensions, garages, renovations, hard landscaping, new builds, oak frame structures, blocklaying, brickwork, and sub-contracting.
St Martin·Professional services
GBTEA member and full-service building contractor with over 16 years of experience, specialising in residential and commercial builds, extensions, and renovations.
St Peter Port
Building contractor specialising in large Channel Islands construction projects, including schools and hospitals, with offices in Guernsey and Jersey.
St Martin·Professional services
Guernsey property developer and construction company specialising in high-end residential developments and private client builds.
St Saviour
City & Guilds qualified building company with 27 years of experience, specialising in new builds, renovations, and damp proofing.
St Sampson
City and Guilds qualified sole-trader specialising in plastering, dry lining, extensions, and loft and garage conversions, with 27 years of experience.
St Martin
Family-run building company in St Martin offering new builds, renovations, extensions, and general trades.
St Peter Port
Construction company providing building and property services for residential and commercial clients, including new builds, renovations, and groundworks.
Vale
Building and decorating contractor and a member of the Guernsey Building Trades Employers Association (GBTEA), holding Waste Transport Licence WTL149.
St Saviour
Guernsey building contractor offering new builds, blockwork, extensions, renovations, drains, hard landscaping, and tiling.
Castel·Est. 2023
Limited company established in 2023, specialising in plastering, rendering, limework, and external wall insulation for residential clients in Castel.
St Peter Port·Est. 2018
Sole-trader roofing and construction business established in 2018 by owner Shane Bougourd, also trading as Coastal Roofing Contractors.
Vale·Est. 2005
Vale-based construction and maintenance partnership, offering new builds and general house maintenance since 2005.
St Saviour·Est. 2010
Qualified carpentry and construction firm offering joinery, renovations, bespoke furniture, and roofing.
St Pierre du Bois·Est. 2011
Limited company established in 2011, specialising in new builds, extensions, renovations, drainage, and groundworks across Guernsey.
St Peter Port·Est. 2024
Commercial builder that undertakes full property renovations and specialises in plaster and structural crack repair, including grinding out cracks, helibar, resin, and mesh.
Vale·Est. 1993
Vale-based construction company offering residential, commercial, and civil engineering services.
St Saviour
Alan Robert is a sole trader offering building and carpentry services in St Saviour.
St Peter Port
Construction company offering extensions, renovations, new builds, landscaping, paving, and drainage, with all trades handled in-house.
St Peter Port
St Peter Port general building contractor offering construction, plumbing, and home renovation services.
St Andrew
Guernsey construction company specialising in new builds and residential projects, established in 2015.
St Andrew
Construction firm in St Andrew specialising in new builds and general building work, trading as SBBC Ltd.
St Peter Port
Limited company offering residential construction services including kitchen and bathroom renovations, home extensions, and full property renovations.
St Peter Port·Professional services
Limited company in St Peter Port, a Guernsey-wide commercial builder with 22 recorded projects, specialising in new builds.
Alderney
Alderney builder specialising in general building and new builds, with a history of tendering for States of Alderney public works contracts.
Vale
Commercial builder that undertakes emergency repairs to storm-damaged buildings and holds States of Guernsey Waste Transport Licence WTL259.
St Peter Port
Sole trader offering building services and decorating for both commercial and residential clients across Guernsey.
St Sampson
Ian Crisell is a sole trader builder in St Sampson specialising in domestic building construction.
Torteval
Limited company providing residential building contractor services, specialising in new builds and general construction work in Torteval.
Castel
Marcus Le Page is a sole trader general builder operating in the Castel parish.
St Peter Port·Est. 2012
General building and plastering service established in 2012, specialising in both general construction and plastering.
St Saviour·Professional services
Mark Le Prevost is a sole trader building contractor in St Saviour.
St Peter Port
Residential building contractor with over 40 years of combined experience, specialising in general building, new builds, and groundworks in St Peter Port.
St Martin
Building and carpentry contractor, also trading as N.J. Montgomery, offering general building, carpentry, and new build services.
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Building contractor specialising in general building services for commercial clients, holding Waste Transport Licence WTL325 in Guernsey.
St Sampson
Carpentry and building firm offering work from small joinery to full property rebuilds, plus temporary kitchen and bathroom pod hire.
Torteval
Small Torteval building company specialising in patios, pathways, fences, paving, walls, and drainage.
St Sampson
Commercial builder and roofing contractor, specialising in both building and roofing services in St Sampson.
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Guernsey general building and construction firm run by Eddie and Emma Edwards.
St Sampson
Building and construction contractor in St Sampson.
St Sampson
Construction company specialising in external and internal plastering, rendering, and wet trades, with over 15 years of experience.
Vale
Residential building contractor in Vale specialising in new builds, plastering, and stonework, offering general building services.
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Guernsey construction company run by Jim Page, specialising in general building and offering all aspects of construction work, including porcelain tiling.
Vale
General building contractor specialising in new builds and building services for both residential and commercial clients across Guernsey.