United Kingdom Accreditation Service, certifying your timber frame project is manufactured and erected to reliable and quality ISO 9001:2000 procedures SGS - Society General de Surveillance ensures that quality systems and procedures are used in the design, manufacture and erection of your engineered timberframe structure is of the highest standard FSC - Forest Stewardship Council - FSC Timber Frame certification. Benfield ATT hold Chain of Custody certification for the Design, Sales, Manufacture & Distribution of Engineered Timber Structures – FSC endorsed by Greenpeace, Friends of the Earth and WWF and EcoHomes Investors in People, Benfield ATT are one of a few timber frame companies to hold an award for the training and ongoing development of their people and service   Examples of timber frame homes

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Express Extensions (London, Kent and Surrey)

Express Extensions (Ex2) Ltd specialise in building cost-effective single-storey extensions to homes in densely-populated boroughs of South London, North Surrey and North Kent. The fast, innovative building methods used are based on large-scale construction techniques to save you money.


These modern construction techniques offer speed, elegance and lower-costs when compared to alternative traditional methods of building. The expertise and knowledge of the Express Extension project managers, coupled with the flexible construction techniques, mean that it is possible to build where it would have previously been too difficult.


Express Extensions logo


Custom-designed home extensions to suit...

  • Any size
  • Any shape
  • Any time
  • Any site


Home extensions on terraced homes
Home Extension kits in Kent, London and Surrey
Small home extension project
home extensions on terraced houses and tight sites


Make money on a home extension

The reinforced concrete foundations and engineered Benfield ATT structural timber frame components used have received Building Regulation approval, and with facing brickwork or rendered block walls, tile, slate or flat roof, the home extension kit construction technique is endorsed by all the UK's top financial lenders.


Express Extensions provide free estimates, ideas and advice. There is no obligation, no hard-sell and, with fixed-price contracts, no nasty surprises! All materials and workmanship on the home extension are fully guaranteed.


If you live in South London, North Surrey or North Kent, and could benefit from a new home extension, click here to visit the Express Extensions website.


Chartered Building Consultancy - timber frame, OSM (off-site manufacture) and engineered timber structure advisors. Timber Research and Development Association – our work with TRADA ensures high quality, eco-friendly engineered Timber Frame build projects. The Green Register of Construction Professionals - Benfield ATT's membership demonstrates our passion for environmentally sustainable timber frame self-builds, new homes, schools and social housing for local housing authorities AECB - Association of Environment Conscious Building – our FSC certified timber frame is endorsed by The Ecology Building Society Impact Upon Society Big Tick Award from Business in the Community – BITC – award-winning timber frame company within the Timber-frame industry TRA - Trussed Rafter Association – our membership assures Timberframe Trusses, Trussed Rafters, roofs and complex and innovative roofscapes are quality HBF - the only developer partnering timber frame company to be members of the House Builders Federation. Wales Quality Centre – members and committee members, we ensure the highest quality, especially when coupled with ISO 9001, FSC certification and Q-Mark Plus standards RICS - Royal Institute of Chartered Surveyors, assures our customers of our professionalism in wood and timber frame building and developing and surveying
Benfield ATT FSC-Certified Engineered Timber Structures do not cost the Earth.
Chain of Custody TT-COC-1928. FSC Trademark (C) 1996 Forestry Stewardship Council