External wall insulation, solid wall insulation and thermal insulation systems specialists.
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External exterior wall insulation, solid wall insulation and thermal insulation specialists
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Including: London - Central London, East London, North London, South London, West London, South East Berkshire, Buckinghamshire, East Sussex, Hampshire, Kent, Oxfordshire, Surrey, West Sussex, South West - Avon, Cornwall ,Devon, Dorset, Gloucestershire, Somerset, Wiltshire, West Midlands - Hereford & Worcester, Shropshire, Staffordshire, Warwickshire, Worcestershire,Birmingham, East -Bedfordshire, Cambridgeshire, Essex, Hertfordshire, Norfolk, Suffolk, East Midlands - Derbyshire, Leicestershire, Lincolnshire, Northamptonshire, Nottinghamshire - North East - Cleveland, Durham, Northumberland, Tyne & Wear,Newcastle, North West - Cheshire, Cumbria, Greater Manchester, Lancashire, Merseyside, Liverpool, Yorkshire , Leeds, Sheffield, Bradford, Huddersfield, Wakefield, Humberside, North Yorkshire, Harrogate, York, Ripon, South Yorkshire, West Yorkshires.

External Vs Internal

On solid wall properties the choice of insulation is between an internal system or an external system and the following table from the BBC site gives some interesting comparisons.

As you will see going the internal route can be very disruptive and incredibly costly to fully insulate all the wall surface area to match an external system which covers all surface areas and prevents cold bridging.

Internal and external insulation compared

Internal External
Works by layering thick (9cm) readymade plaster boards over the walls inside your house, or rolls of insulation encased in wooden battens Works by layering a weatherproof insulation (made from waste wood chipping formed into boards) to your outside walls, rendering in with cement or lime cladding with a protective finish over the top
Up to three times more expensive than external, but saves similar CO2 each year It's cheaper than internal and pays back within six years
An experienced DIYer can install it themselves, but it's a major disruption to the house Requires professional installation and scaffolding
Lose around 1% of internal space (more in small rooms) so best if your rooms are spacious Your house will stick out from uninsulated houses nearby and planning permission may be required in some cases
Outside walls can suffer because they are still exposed to bad weather but no longer being dried out by heat escaping from inside Only suitable for flats if all of them are insulated and often only suitable in conservation areas if you use lime based cement
Will need to relocate plug sockets, radiators and fitted furniture Most suitable when combined with house renovations such as renewing the cladding on your outside walls, otherwise it's very expensive


Realistically you can only derive the full benefits from internal insulation if the property is a gutted shell with no furnishings or fitments and you have exposed internal walls that can be insulated before fitting skirting, coving, architraves, kitchen, bathroom, fitted bedroom furniture and a staircase on an external wall.

Unless the above is the case then the only realistic option has to be an external wall insulation system which causes no internal disruption and costs far less than an internal system as well.

 

 
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Keywords: external & exterior wall insulation, solid wall insulation, reduce heat loss, improve U values, save heating costs