TrustMark accredited construction companies

1519 UK construction companies displaying TrustMark on their website.

• M Mek Electrical Services Ltd South Croydon · Electrical

  MEK Electrical Services Ltd is a professional electrical services company providing reliable electrical solutions for both residential and commercial

• U Uber Cool Ltd Maidenhead · Air conditioning

  Expert air conditioning, ventilation & EV charging solutions. F-Gas, NAPIT & TRUSTMARK certified. Serving London & Home Counties with eco-friendly sol

• F Freedom Energy Ltd Tiverton · Solar PV

  Freedom Energy: the South West's complete energy partner. Solar panels, battery storage, EV charging and electrical installation. MCS certified. Octop

• W Wired By Jessops St. Agnes · Solar PV

  Award-winning renewable energy solutions in Cornwall with personal site visits and 5-year warranties. Meet Joe and the team at Wired by Jessops.

• L Loadhems Ltd Stafford · Electrical

  Loadhems Electrical Contractors are a full service, family-run national company dedicated to customer satisfaction. From small projects to large scale

• P Purelypowered Ltd Preston · Solar PV

  PurelyPowered are solar specialists in Lancashire. We install solar panels, battery storage, flat roof panels and commercial systems.

• S Simply Wired Ltd Grendon Underwood · Electrical

  Family-run electrical and home automation business based in Buckinghamshire, offering reliable and friendly service for installations, maintenance, an

• B Bright Thermal Solution Ltd Birmingham · Insulation

  Bright Thermal Solution provides free insulation and heating grants to eligible households, improving energy efficiency and reducing bills. Approved T

• A Another Level Roofing Ltd Leicester · Roofing

  Professional roofing services across the Midlands, offering safe installation and insurance-backed guarantees for domestic and commercial clients.

• E ENERGY2 LTD Princes Risborough · Solar PV

  Energy2 designs, manufactures and installs premium battery storage systems in Britain. Domestic and commercial. 15-year warranty. Installed in 48 hour

• S Send It Solar Ltd Portsmouth · Solar PV

  Send It Solar are Solar Panel Installers in Hampshire, West Surrey, and West Sussex. We install Solar PV Systems for commercial and domestic propertie

• E Electropossible Ltd Milton Keynes · Electrical

  Electropossible Ltd offers expert electrical services in Milton Keynes and Buckinghamshire. With over 10 years of experience, we provide tailored solu

• N Neutral Electrical Solutions Ltd Pocklington · Electrical

  Highly skilled electricians in Pocklington, Yorkshire, specializing in solar PV, battery storage, EV charging, and all domestic, commercial, and indus

• P Preserve First Ltd Warrington · Solar PV · 10-49 employees

  Preserve First offers top-tier renewable energy and M&E solutions, specialising in Solar PV, Heat Pumps, and electrical services for residential and c

• E Emsworth Heating Ltd Emsworth · Heating & ventilation · 1-9 employees

  Emsworth Heating provides quality and reliable boiler services to homeowners across the South Coast. Buy your boiler online or arrange an engineer to

• A AirToHeat Bromley · Heating & ventilation

  Air Source Heat Pumps provide a great energy saving alternative. An ASHP can save you money on your heating bills & help save the environment.

• E Everything Energy Renewables Ltd Liverpool · Solar PV

  Solar PV, battery storage, EV chargers, and heat pump installations for homes and businesses. Consultancy services for contractors and businesses.

• S Scl Design & Build Ltd London · M&E contracting · 1-9 employees

  SCL Design & Build Ltd is a London-based mechanical and electrical design and build specialist, delivering professional design, installation, complian

• M Mbd Automation Ltd Hull · Solar PV

  MBD Automation Ltd, based in Hull, East Yorkshire, provides clean energy solutions including Solar PV, Energy Storage Systems, Variable Speed Drives,

• W White Swan Electrical Ltd Stoke-On-Trent · Electrical

  Honest & Reliable Electrician 24/7 Available in Staffordshire and Cheshire. City & Guilds Qualified with over 19 years of experience. All work guarant

• U UC ELECTRICAL (UK) LTD Derby · Electrical

  Professional electrical services in Derby & Derbyshire. NICEIC approved contractor offering domestic & commercial solutions, EV charging, fire alarms,

• E Eco Fit Services Ltd Leicester · Insulation · 1-9 employees

  Eco Fit Services Ltd offers home energy efficiency upgrades including external wall insulation, loft insulation, and boiler upgrades, often funded by

• P Phoenix Energis Ltd Hereford · Solar PV

  Phoenix Energis Ltd provides solar and renewable energy solutions for residential and commercial clients across the UK, offering fixed-price installat

• S Spectra Solar Wigan · Solar PV

  Spectra Solar is a trusted UK company specializing in Solar PV and battery storage solutions for domestic and commercial clients. They offer professio

• A Ace Alfa Construction Ltd Edgware · Extensions · 1-9 employees

  Ace Alfa Construction offers residential extensions, loft conversions, new builds, kitchen and bathroom renovations across London. 16 years experience

• V Viable Power Tilford · Solar PV

  Viable Power Solutions Ltd offers expert solar panel installation, EV charging solutions, and electrical services across Surrey, Hampshire, and nation

• S Simple Solar Plymouth · Solar PV · 1-9 employees

  Simple Solar take the hassle out of solar panel installation offering high quality, exceptional value systems with the minimum of fuss and no annoying

• E Energy Saving Surveys Ltd Coventry · Insulation

  Energy Saving Surveys provides energy efficiency services including EPC surveys, bill reviews, and grant applications under government schemes like EC

• H Hi-Load Electrical Ltd London · Electrical

  Professional NICEIC-approved electricians based in Park Gate, offering electrical services across Hampshire, including Winchester, Portsmouth, Eastlei

• P Prima Construction Ltd Cheadle · Main contractor

  Prima Construction Ltd: Federation of Master Builders members in Stockport with over 20 years of experience. We serve Greater Manchester with highest

• B Blue Leaf Energy Services Ltd Newcastle Upon Tyne · Solar PV

  Blue Leaf Energy installs renewable energy systems including heat pumps and solar panels for commercial and residential sectors, offering decarbonisat

• R Richard Saunders Building Ltd Eastleigh · Extensions

  Local building company based in Chandler's Ford, Eastleigh, Hampshire offering a range of building services in the local area.

• P PRIME BUILDINGS Blisworth · Extensions · 1-9 employees

  Prime Buildings & Developments are your trusted partner for house extensions in Northamptonshire. We offer high-quality building solutions tailored to

• G Grc Solar Ltd Bootle · Solar PV

  GRC Solar are experts in renewable energy systems, offering solar panels, battery storage, and air source heat pumps to homeowners and businesses. The

• S Select Refurb Alton · Refurbishment · 1-9 employees

  We deliver a wide range of building services in Hampshire for both domestic and commercial clients. We pride ourselves on our quality of work.

• K Kingsley Industrial Roofing Ltd Ferring · Roofing

  Kingsley Industrial Roofing is dedicated to providing customised roofing solutions to commercial and industrial clients throughout Sussex, Surrey, and

• K K O'Donoghue & Sons Ltd Ruislip · Roofing

  K O Donoghue & Sons Ltd offers expert roofing, soffits, fascias, dry verge, dry ridge, chimney repointing, rendering, damp proofing, patios, driveways

• L Livgreen Futures Ltd Plymouth · Refurbishment

  Leading UK provider of retrofit decarbonisation for social housing and residential properties. Specialising in large-scale energy efficiency projects

• A Amser Projects Ltd Cardiff · Electrical

  Amser Electrical Contractors Ltd are a trusted, independent Cardiff based electrical contractor, experience across the UK.

• M Moor View Carpentry And Building Ltd Buckfastleigh · Main contractor · 1-9 employees

  Family-run carpentry and general building firm in Devon, offering high-quality domestic and bespoke building services with over 25 years of experience

• P P4 SOLAR LTD Keighley · Solar PV

  Switch to solar panels in Yorkshire with P4. Expert installers, durable PV systems & battery storage options backed by trusted local support. Get a fr

• B BMC Loft Conversions Portsmouth · Loft conversions · 1-9 employees

  BMC Loft Conversions in Portsmouth & the South Coast offer bespoke loft conversions, extensions, and building projects with expert craftsmanship and a

• M Manchester Renewables Ltd Cheadle · Solar PV

  MCS certified solar panel installations in Manchester. Save £850+ yearly with premium solar PV, battery storage and renewable electrical work.

• N NJW Composite Doors & Windows Selby · Windows & doors

  NJW Composite Doors provides high-quality uPVC Windows & Composite Doors in York. From uPVC to composite materials, trust our expertise for your home

• S Sunsave UK Ltd London · Solar PV · 10-49 employees

  Save money on your bills and gain energy independence with Sunsave solar panel and battery solutions. Get a free quote today.

• T Trj Electric & Pv Solar Ltd Skegness · Electrical

  TRJ Electric & PV Solar Ltd provides trusted electrical and renewable energy services in Skegness for homes and businesses. Reliable and compliant wor

• R Reco Energy Ltd. Callington · Solar PV

  MCS accredited renewable energy installers in Cornwall and Devon. We design and install solar PV, heat pumps, battery storage and EV charging for home

• C Castle Wren Bishop'S Stortford · Demolition · 10-49 employees

  Castle Wren is an external works and enabling contractor based in Hertfordshire, offering demolition, site clearance, groundworks, and landscaping ser

• G Green Sky Renewables Chorley · Solar PV

  MCS-certified renewable energy installers in Manchester, offering solar panels, battery storage & EV charging for homes and businesses across the UK.

• D Dtm Electrical Services Ltd Warrington · Electrical

  Local, reliable and trustworthy electrician in Warrington. We provide professional electrical services to homeowners, letting agents and landlords in