Builder’s work in connection
To help develop this article, click ‘Edit this article’ above.
The term ‘builder’s work in connection’ (BWIC) refers to builders work that is necessary as a result of other works, typically mechanical and electrical services but also specialist installations such as; lifts, escalators, roller shutters, hoists and cleaning cradles and so on.
- Cutting, forming or drilling through walls, floors or ceilings to allow services to pass.
- Ensuring structural integrity is not compromised.
- Chasing block and brickwork for conduits or pipes.
- Lifting and replacing floors.
- Asbestos removal.
- Plant moving services.
- Sealing holes.
- Reinstating fire, thermal or acoustic separation.
- Constructing plinths.
- Making good plaster and other finishes.
- Maintenance access requirements such as access panels, decking, platforms, cat ladders and handrails.
This may involve works that require building regulations approvals and possibly testing certificates (for example cleaning cradle restraining bolts).
Builders work in connection is generally carried out by the main contractor for a mechanical and electrical sub-contractor and other such specialist trades. However, sometimes, the mechanical and electrical works might be part of the main contract and the builders work in connection sub-contracted.
 Related articles on Designing Buildings Wiki
Featured articles and news
We interviewed CEO Andrew Carpenter about the rising popularity of timber, Grenfell, the future of 'plyscrapers', and more.
Can you pump heavyweight concrete through 500 m of 125 mm pipeline? Andrew Turner discusses the challenges at Crossrail.
DRAFT technical manual for BREEAM UK Non-domestic New Construction 2018 manual open to comments.
What is a certificate of non completion? Find out with this introductory article.
Read about the launch event for our major new report about the worrying and widening construction knowledge gap.
We've analysed 6 million pieces of data to reveal that the knowledge framework underpinning the construction industry is no longer fit for purpose.
Retrofitting traditional buildings depends on understanding how they differ from modern construction.
The theme for BSRIA's 2017 Briefing is 'Solutions to Tomorrow’s Challenges in Today’s Buildings'.
Dealing more than 1,700 consultations was just one of last year’s tasks for the Gardens Trust.
Read about the history behind one of California's most iconic buildings, the Griffith Observatory.
ICE examine just how close we are to providing subsidy-free low carbon electricity.
Have a look at MAD Architects' design proposal for renovating Montparnasse Tower into a concave mirror.