TrustMark accredited construction companies

1519 UK construction companies displaying TrustMark on their website.

• R Renova Energy Group Ltd Birmingham · Solar PV

  Renova Energy Group Ltd is a UK-based energy and home-improvement company offering renewable energy, energy-efficient heating, and insulation solution

• W Waxwing Design And Build Ltd York · Design & build

  Waxwing Design and Build Ltd is a specialist construction firm based in York, creating inspired architectural designs with a thoughtful approach to co

• E Eureka Energy Bournemouth · Solar PV

  Eureka Energy offers eco-friendly energy solutions including air source heat pumps, solar energy, underfloor heating, and bespoke projects. Get starte

• C CURRENT ELECTRICAL NORTH EAST LIMITED Houghton Le Spring · Electrical

  NAPIT Approved and TrustMark Registered electricians serving homes and businesses across Durham and the North East. Offering professional, certified e

• P PROTON ENERGY SOLUTIONS LTD Orpington · Solar PV

  Proton Energy Solutions Ltd offers heat pumps, solar panels, MVHR and air conditioning systems in Orpington across UK for residential and commercial p

• P Powered With Purpose Ltd Folkestone · Electrical

  Energising Homes. Empowering Communities. Powered with Purpose Ltd offers reliable domestic and commercial electrical services in Kent, focusing on qu

• B Balfe Electrical Cheltenham · Electrical

  Cheltenham based electrician offering EICR, rewiring, EV chargers, CCTV, and commercial installations. Fully qualified and NAPIT registered.

• 3 363 Electrical Ltd Tadley · Electrical

  Reliable electrical contractors in Andover. 363 Electrical Contractor offers domestic and commercial electrical services, installations, and repairs y

• M Mainline Access Rope System Solutions Ltd London · Security systems

  Access control, CCTV and integrated security systems for hospitals, data centres, warehouses and commercial buildings. Request a security consultation

• B BG Construct London · Main contractor

  B & G Construct Ltd offers bespoke new builds, loft conversions, and home extensions. With over 15 years of experience and 50+ projects completed, the

• E EV Charge Solutions Ltd Kidderminster · EV charging

  EV Charge Solutions Ltd provides expert EV charger installation services in Kidderminster and Worcestershire, offering a range of domestic chargers an

• E ENERGY ON 24 LIMITED Coalville · Solar PV

  EnergyOn24 offers expert solar panel installation and maintenance services in the Midlands, dedicated to keeping homes' electrical systems safe and re

• A Aw Electrical Solutions Ltd Newport · Electrical

  Family run electrical contractor based in Newport, Shropshire. Commercial, domestic and industrial electrical services delivered UK wide.

• D Derbyshire Renewables Chesterfield · Heating & ventilation

  Expert heat pump and air con installers in Derbyshire. MCS Certified & Heat Geek Approved. Offering bespoke Heat Pump, Boiler, and Air Conditioning In

• C Conway Power Ltd Leyland · Electrical

  Conway Power Ltd are trusted electricians based in Leyland, offering domestic and commercial electrical services across Preston, Chorley and Bolton. C

• P Peak Electrics Wimborne · Electrical

  Peak Electrics provides expert electrical services for homes and commercial properties, from design and build to maintenance. We offer reliable, high-

• G GLANtech Solar Norwich · Solar PV

  GLANtech Solar: trusted solar panel installers in Norwich, offering 20 years of experience in solar panels, battery storage, and EV charging solutions

• U UK Volts Willenhall · EV charging

  Premium EV charger installations for homeowners and businesses. Trusted, fast, reliable, and expert advice. Charge smarter today.

• M Mazuwa Renewables Okehampton · Solar PV

  Mazuwa Renewables provides integrated renewable energy solutions including solar panels, battery storage, and heat pumps for homes, businesses, and fa

• L LH Electrical Services Birmingham · Electrical

  LH Electrical Services in Birmingham offers certified and affordable electricians for emergency services, electrical installations, domestic, commerci

• N Negus Services Ltd Aylesbury · Refurbishment

  Negus Services Limited offers high-quality home renovation and handyman services in Aylesbury and surrounding areas. Specialising in interiors, exteri

• L LS1 Plumbing Leeds · Plumbing

  Rapid response Plumbers in Leeds! When it bursts, we're first for plumbing, heating and boiler emergencies across Leeds. Call LS1 Plumbing Ltd now!

• D Decamps Services Ltd Huddersfield · Refurbishment

  Decamps Services Limited is an experienced, Huddersfield-based home renovation and construction company offering comprehensive solutions for commercia

• M Makk Low Carbon Installations Ltd High Wycombe · Heating & ventilation

  MAKK Low Carbon Installations Ltd offers home energy efficiency upgrades across the UK, including boiler upgrades, air source heat pumps, and insulati

• E Energy Efficient Ltd Luton · Solar PV

  Energy Efficient Ltd provides EPC certificates and floor plans from £60 in Luton and surrounding areas. Fast appointments, 48-hour certificate deliver

• G Geodec Ltd Rochester · Painting & decorating

  Transform your space with Geodec, specialists in professional painting and decorating services for domestic, commercial, and heritage properties in Lo

• H Handforth Electrical Ltd Barnoldswick · Electrical

  Electrician based in Barnoldswick. Providing electrical installation, maintenance, and repair for domestic, commercial and industrial.

• Q Qays Services Ltd London · Refurbishment

  Qays Services Limited offers high-quality home renovation services in London and surrounding areas, specializing in refurbishments, extensions, and va

• R Retroflow Group Ltd Sunderland · Solar PV

  Professional home energy retrofit systems - solar panels, heat pumps, and insulation. RetroFlow Group designs whole-home energy upgrades that improve

• S SEP Painters Sudbury · Painting & decorating

  SEP Painters are specialist painting and decorating contractors for domestic and commercial properties across West Suffolk and North Essex. Offering i

• V VLA ELECTRICAL Coventry · Electrical

  NICEIC registered electricians in Coventry and Warwickshire. Domestic, commercial and industrial electrical work, EV chargers, CCTV, rewires and EICR.

• P Pure Homes Solar Retford · Solar PV

  Pure Homes Solar designs and installs high-quality solar and energy storage solutions, helping homeowners take control of their energy with smarter en

• G Glow Collective Leigh On Sea · Solar PV

  Residential energy infrastructure for housing portfolios. Storage-led solar deployment with coordinated delivery, DNO-aware modelling.

• E Everest Build Ltd Manchester · Extensions

  Everest Build Ltd is a Manchester-based construction company specialising in residential building projects including home extensions, new builds, and

• S Surrey Energy Centre Banstead · Solar PV

  Premium renewable energy solutions in Surrey. Solar panels, heat pumps, EV charging, battery storage and more. TrustMark certified.

• N North Home Counties Renewables Ltd High Wycombe · Solar PV

  Bespoke renewable energy solutions for homes and businesses across the North Home Counties and beyond. Solar PV, Battery Storage, EV Charging and Air

• K Kulli Construction Ltd London · Loft conversions

  Expert loft conversions and house extensions across North London. Over 15 years of experience in design, build, and finishing for homes.

• V Varda Roofing Ltd Darlington · Roofing

  Varda Roofing provide expert roofing services across Darlington, Yorkshire, Teesside & the wider North East. 25+ years experience.

• R Rhema Sustainable Energy Ltd London · Heating & ventilation

  Professional air source heat pump solutions for homes. Expert installation, servicing, and EPC assessments to enhance energy efficiency and savings.

• R Rm Contracts (Yorkshire) Ltd Harrogate · Roofing

  R.M.Contracts (Yorkshire Ltd) are expert roofers and building specialists in North Yorkshire, offering a wide range of services including roof repairs

• R ROOF PROOF LTD Jarrow · Roofing

  Family-run, NFRC-registered roofing contractors in Sunderland. New roofs, repairs, flat roofing, chimneys and emergency work across the North East. 10

• R R J Electrics Criccieth · Electrical

  Electrical Contractors to the Commercial, Industrial, Agricultural & Retail Sectors. Geek-level problem solving since 2006!

• M Mcgaffin Mechanical Ltd Banbridge · Heating & ventilation

  McGaffin Mechanical Ltd is a leading provider of renewables, heating, and insulation solutions in Northern Ireland, offering total energy solutions fo

• M Madden Contracts Ltd Belfast · Main contractor · 1-9 employees

  Builders focused on meticulous planning, open communication & high quality. We take care of the hard work so you can enjoy watching your vision come t

• E Encom Energy Ltd Belfast · Solar PV · 1-9 employees

  Specialists in Solar Photovoltaic & Battery Storage Systems, providing bespoke design and professional installation of grid-connected systems across a

• W Warmth Shield Ltd Ballynahinch · Plumbing

  Warmth Shield offers plumbing, heating, renewable, and electrical services, specialising in servicing and maintenance of gas, oil, and electric heatin

• C CertifiedInstaller.co.uk Belfast · EV charging

  CertifiedInstaller.co.uk is the UK's specialist directory for finding verified, OZEV-approved EV charger installers. Every company listed holds curren

• S Solar Panel NI Larne · Solar PV

  Solar Panel NI is Northern Ireland's independent solar energy resource, connecting homeowners with MCS certified installers for solar PV, battery stor

• A A C Whyte & Co Ltd Glasgow · Refurbishment · 50-249 employees

  AC Whyte has delivered building refurbishment, retrofit, and energy efficiency solutions across Scotland for over 50 years. Trusted by councils and ho

• M Mitchell Glass Windows & doors · 10-49 employees

  Mitchell Glass, established 1875, is Scotland's longest-established home improvement provider, specialising in windows, doors, conservatories, and ora