TrustMark accredited construction companies

1519 UK construction companies displaying TrustMark on their website.

• L Lambert Home Builds Oxford · Refurbishment · 1-9 employees

  Oxfordshire's retrofit specialists with an in-house Passivhaus-certified team and full airtightness-trained trades under one roof. Book a consultation

• S Surrey Building Projects Ltd Shepperton · Main contractor

  Surrey Building Projects are a reputable building company in Surrey offering new builds, extensions, and conversions for all. Let's talk.

• M Meopham Roofers And Builders Ltd Gravesend · Roofing · 1-9 employees

  Experienced, reliable and fully insured roofing contractors in Gravesend. Offering comprehensive roofing and building services across the South East.

• E Electrical and Test Ltd Folkestone · Electrical

  A leading provider of solar power, battery storage, EV chargers and electrical testing. We are powered by craftsmen and our foremost focus is quality.

• P Paul Little Construction Ltd Plymouth · Refurbishment · 10-49 employees

  Paul Little Construction Ltd is an experienced construction company in Plymouth offering a professional, friendly and practical approach to building s

• D Drywall Machines Ltd Salford · Drylining · 1-9 employees

  Specialist dry-lining contractor in Salford, Greater Manchester, offering high-quality services for commercial refurbishment and new-build projects. A

• T Twb Electrical Ltd Market Rasen · Electrical

  TWB Electrical is a NICEIC Approved Contractor providing professional electrical services in Market Rasen and surrounding areas. Offering a wide range

• P Prometheus Electrical & Solar Llanelli · Solar PV

  Trusted solar panel installers in Swansea offering solar PV, battery storage and EV charger solutions for homes and businesses.

• R Rs Electrix Ltd Harrogate · Solar PV

  MCS-certified solar panel and battery storage installers serving Harrogate and North Yorkshire. Bespoke system design and quotation for a £75 design f

• J Jd Heating And Renewables Ltd Market Drayton · Heating & ventilation

  JD Heating and Renewables Ltd are Shropshire based solar panel, air, ground and water source heat pump installers serving the West Midlands.

• M Maynard Windows Ltd Bristol · Windows & doors

  Maynard Windows Ltd is a professional double glazing installer in and around Bristol and Kingswood, offering a range of related services to all custom

• O Oaks Electrical Supplies Ltd Sevenoaks · Electrical

  Kent-based electricians for domestic and commercial work, EV chargers and landlord compliance. NAPIT registered and fully insured, based in Sevenoaks.

• G Gage Projects Ltd Colchester · Design & build

  Gage Projects Ltd is an Essex-based design and build company specialising in domestic/non-commercial projects. Get your free quote now!

• P Perfect Square Development Ltd London · Refurbishment · 1-9 employees

  Premium construction, house extensions, loft conversions and home renovations across London and the Home Counties. Precision, craftsmanship and qualit

• A Armitage Electrical Solutions Ltd Pontefract · Electrical

  Armitage Electrical Solutions offer a range of electrician services in Leeds and surrounding areas. Domestic, Commercial, Industrial electrician Servi

• T Taunton Windows And Conservatories (Sw) Ltd Wellington · Windows & doors

  Family-owned home improvement specialists in Taunton, offering uPVC and aluminium windows, doors, and bespoke conservatories. Established in 2000, wit

• E Essex Painting & Decorating Services Ltd Chelmsford · Painting & decorating

  CHAS Elite & Constructionline Gold accredited painting and decorating contractors serving social housing, healthcare, education, offices and homes acr

• M Mv Electrical Engineers Ltd Stevenage · Electrical

  MV Electrical is a fast growing contractor, providing MEP services to commercial and residential schemes. Our growing reputation to deliver projects o

• K Kbb Master Builder Ltd London · Bathroom fitting · 1-9 employees

  KBB Master Builder LTD offers comprehensive house renovation services including full house refurbishment, loft conversions, and bathroom installations

• S Switch On Ltd Dudley · Electrical · 10-49 employees

  Switch On Ltd delivers expert electrical engineering for solar, BESS and ICP projects across the UK. Trusted, accredited and compliant.

• E Extra Space Developments Ltd Boroughbridge · Loft conversions

  Yorkshire's trusted loft conversion specialist with over 30 years of combined expertise. We transform unused loft spaces into stunning, functional roo

• F FUTURE-TECH ELECTRICAL Newark · Electrical

  Future-Tech Electrical, based in Nottinghamshire, offers skilled and qualified local electricians for domestic, commercial, and industrial clients acr

• S STEVE ROLT HOME IMPROVEMENTS LTD Buntingford · Extensions

  Luxury high-end home improvements and extensions in the UK. Steve Rolt offers bespoke solutions from design to development, ensuring a single point of

• R Roofing Matters Group Maidenhead · Roofing

  RMG Construction & Energy Ltd provides commercial roofing, waterproofing and solar solutions across Berkshire, London and the South East. Specialists

• N NW Electrical Installations Ltd Colwyn Bay · Electrical · 1-9 employees

  Electrical contractors covering the North Wales coast, based in Conwy. No job too small or too big for NW Electrical Installations Ltd.

• D Definitive Electrical Solutions Nottingham · Electrical

  NICEIC Approved electricians in Nottingham, Derby, Mansfield & Chesterfield. Offering reliable, affordable electrical services for homes, landlords &

• S South Rings Energy Preston · Heating & ventilation

  MCS certified heat pumps and solar, Gas Safe boiler replacements and grant funded insulation across Lancashire and Greater Manchester. Call 01772 2870

• C Construction Circle Bradford · Heating & ventilation

  Construction Circle provides free grants for energy-efficient home improvements, including boilers, central heating, and insulation, under the ECO sch

• E Easybuild Solutions Ltd Bury · Insulation

  EasyBuild Solutions specialises in energy-efficiency upgrades for homes, offering ECO4 Scheme installations, whole-house retrofit, insulation, heating

• C Custom Glaze (Mk) Ltd Milton Keynes · Glazing · 1-9 employees

  Custom Glaze provides double glazing windows, doors, and conservatories in Milton Keynes. Specializing in energy efficiency.

• P Proudlove Roofing Nottingham · Roofing

  Proudlove Roofing, expert roofing services in Nottingham & the East Midlands. Heritage, flat, and pitched roofing with quality craftsmanship you can t

• I Infinity Renewables Crawley · Solar PV

  Infinity Renewables is a leading provider of in-house solar and battery installations for UK homes and businesses, offering trusted support from consu

• F Falcon Innovations Ltd Northamptonshire · Electrical

  Falcon Innovations provides professional electrical services for homes and businesses in Northamptonshire and the Midlands, specialising in EV charger

• K Kerdon Electrical Ltd Peterborough · Electrical

  Kerdon Electrical Ltd are approved electricians offering a full range of domestic or commercial repairs and installations in Yaxley and Peterborough.

• G Guscott Heating Services Chatham · Heating & ventilation

  Kent's top-rated installers for new boilers, heat pumps & solar panels. Based in Rochester, we are the best local heating engineers in Kent.

• J Jth Electrical Services Ltd South West Industrial Estate · Electrical

  JTH Electrical Services Ltd delivers high-quality electrical solutions with precision, safety, and professionalism. Offering commercial and domestic s

• M Marvel Heating & Renewable Energy Ltd Doncaster · Solar PV · 10-49 employees

  Marvel Heating & Renewable Energy Ltd specialises in renewable heating technologies and green energy solutions, including heat pumps, solar PV, and ba

• S Stellar Energy Llanelli · Solar PV · 10-49 employees

  Award-winning retrofit and decarbonisation specialists providing high-quality energy solutions including solar panels, battery storage, and heat pumps

• C Cornwall Roofing Ltd Falmouth · Roofing · 10-49 employees

  Cornwall Roofing Ltd offers comprehensive roofing solutions in Falmouth, Cornwall, specializing in natural slate, flat roofing, and leadwork with over

• E E.N.K. Construction Ltd Oxford · Main contractor

  ENK Construction is a family-run building company in Oxford, specialising in new builds, house extensions, loft conversions, and renovations. With ove

• A AS Homes and Construction Hemel Hempstead · Main contractor

  AS Homes and Construction are a family-run building company in Hertfordshire, offering new builds, extensions, conversions, and refurbishments. They f

• T Tees Electrical Ltd Hartlepool · Electrical

  Local and reliable electricians in Hartlepool. Tees Electrical Limited offers a full range of domestic and commercial repairs and installations, provi

• L London Basement Pumps Surbiton · Basement works

  Specialist pump servicing, maintenance, and 24/7 emergency repairs for basement, sewage, drainage, and booster pump systems in residential and commerc

• C Commercial Improvements Ltd Luton · Insulation · 10-49 employees

  Commercial Improvements Ltd offers insulation, heating, renewables & refurbishments for homeowners, landlords & commercial clients across the UK. Free

• B Barton Knight Energy Guildford · Electrical

  Specialist electrical & renewable energy provider working in London and the Home Counties on residential, commercial, and public sector projects.

• E Eco Grants UK Ltd Blackburn · Solar PV

  Eco Grants UK LTD specialises in renewable retrofits and energy efficiency solutions, helping UK households access government grants for upgrades like

• U UK Solar Services Ltd Stoke On Trent · Solar PV

  A specialist renewable energy company based in Staffordshire, installing and maintaining solar PV, battery storage, and air source heat pump systems f

• C Conservatory4you Ltd Northampton · Roofing

  Conservatory roof experts in Northampton, the Midlands & East of England. Specialising in tiled conservatory roof replacements and insulated ceilings

• A A N Property Solutions Ltd Manchester · Extensions · 1-9 employees

  A N Property Solutions Limited is a family-run building company in Urmston, Manchester, offering extensions, renovations, plastering, and more across

• L Loft Solutions Nw Ltd Gaerwen · Loft conversions

  Loft Solutions NW Ltd specialises in loft boarding, insulation, ladders, and hatches, covering North Wales, the North West, Staffordshire, South Wales