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Basement Conversion in Chiswick, London developed by Debonair Designs


Established over 15 years ago, Debonair Designs is a building company that offers a full range of architectural and construction services, with a focus on imaginative design and long-term sustainability. With a team of over 80, Debonair have the expertise and capabilities to tackle projects of any size and complexity.


Industry approved and accredited


Debonair Designs pride themselves on developing properties to the highest industry standards. That’s why Debonair Designs is an approved member of these major building associations:


•           The Federation of Master Builders

•           Association for Environment Conscious Building

•           The Considerate Constructors Scheme


Work is only undertaken with gas-safe and national inspection council registered gas and electrical engineers using industry-leading equipment and materials to current British Standards.




Sumpguard and is a unique monitor that measures how many times the pumps turn on in the sump chamber and how many litres of water is being removed




The pump monitor has been designed to monitor automatic water sump pumps. It is wired in the power line to the pump. It also has the option to add a high level water alarm indicator. There is also a built-in alarm relay that can be used to signal a home automation system, house alarm or a remote dialler. The monitor can also be set up on installation to show the amount of water pumped since installation.



Cavity Drain Membrane


Cavity drain membranes provide an alternative to conventional cementitious tanking systems, which work by holding the water back.




Cavity drain membranes work on the principle of allowing water to continue to penetrate the structure but control it in the air gap and divert it to a suitable drainage point. They do not allow pressure to build up against the internal construction and the air gap behind the membrane allows the structure to breathe and to some extent to dry out.



The membranes are lose laid on floors and fixed to walls using special plugs and sealing materials, with little or no preparation required to the substrate. Once the membrane has been fitted, wall surfaces can be dry lined or plastered directly and floors can be screeded or a floating dry board system installed.



BS 8102


Every developer knows and appreciates the importance of the BS 8102 design document. Its purpose is to inform the designer of the various methods of waterproofing available and to assist in the correct specification of those systems.


Although other documents are available, BS 8102 is THE document that you should be familiar with and while not UK law, failure to use BS 8102 could result in the designer having a difficult time in a court of law in the event of litigation following a waterproofing failure.



Chiswick, London


City living, especially in London means space is at a premium. Once expansions at ground level and up are exhausted, the only opportunity for gaining living space is to build down.


Chiswick is a hub of town houses with superb scope for downward expansion. The district occupies a meander of the River Thames, 6 miles (9.7 km) west of Charing Cross. The area is built up towards the north with more open space in the south, including the grounds of Chiswick House and Dukes Meadows, in both ways it resembles Fulham.


Chiswick however has one main commercial area, the Chiswick High Road, forming a long high street in the north. The river forms the southern boundary with Kew, including North Sheen, Mortlake and Barnes in the London Borough of Richmond upon Thames.

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