Archive for Outside Insulation

External Wall Insulation in Birmingham

External Wall Insulation in Birmingham

Smarter Homes’ installers have been fitting exterior wall insulation systems and renders since 1975 and cover all areas of Birmingham and the West Midlands from Sutton Coldfield to Dudley. We can also access free government grants and cash back schemes for our customers.

There are over half a million solid wall properties across Birmingham and the surrounding areas which can be thermally improved to benefit from a reduction in heat loss and heating bills.

Before & After Exterior Insulation

heat loss semiThe 1930′s solid wall semi opposite is a typical example of a thermally inefficient property that can benefit from energy saving external wall insulation fitted by Wethertex.

The pebble dash is blown and needs replacing and so this is a great opportunity to install thermal insulation boards whilst re-rendering.

The small extra cost involved makes exterior insulation a no-brainer.

As the photo below shows the tired looking semi has now been transformed into an attractive and maintenance free home.

dry warm wallsMore importantly though the insulated walls will save the owners around £450 p.a on heating bills and any condensation damp or black mould will be destroyed forever.

With Solid Wall Insulation Grants available to help with the costs and a 15% Government subsidy there really has never been a better time to arrange a free no obligation quote or talk to one of our advisors for more information.



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External Wall Insulation in Surrey

External Wall Insulation in Surrey

Smarter Homes are experts in external wall insulation for all types of property using only Ofgem approved systems. This means that we can access  free government grants or cash back towards the costs for anyone living in Epsom,Guildford and Kingston upon Thames or indeed, any part of Surrey.

The most cost-effective and thermally efficient way to insulate solid walls is by having an external insulation system fitted on the outside of the walls. Not only does it avoid internal disruption and re-decoration caused by internal dry lining, it also avoids reducing the living space and protects the fabric of the building as well.

If you live in one of the 170,000 houses that have solid walls in Surrey and wish to permanently reduce  the spiralling costs involved in keeping warm in winter then call or email for more information on the likely level of costs as well as finding out what sort of free Grant you are eligible for.


Effectiveness of External Insulation

before insulating the wallsAs you can see the house opposite is a fairly typical example of a pebble dashed semi built in the 1930′s with 9 inch solid brickwork under the cement based rendering.

The pebble dash is looking tired and is starting to absorb water and cause the solid walls to leak even more heat than the usual 40% heat loss suffered by this type of build. Typical heating bills would be around £1200 p.a.


Now,take a good look at the same house after it has been thermally upgraded using a rendered external insulation system.

finished ewiWe are sure you will agree the house now looks a lot more appealing and the effects of the wall insulation on the are not detrimental to the appearance of the windows or the door surround etc.

In fact,the property will now lose 85% less heat through the walls and as well as having a lovely maintenance free finish,the newly-insulated walls will stay dry and mean an average £500 p.a reduction in heating bills!





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Can EWI Stop Condensation ?

Trying to solve condensation damp is the second most popular reason, for householders  in solid wall homes, to consider having their outside walls thermally rendered or cladded . The most frequent question we are asked is how can external insulation  possibly cure damp condensation problems when it is adding yet another layer to their wet walls ?

How Exterior Insulation Stops Condensation

Solid wall insulation systems cure condensation by moving the dew point of a wall from the internal plaster surface to the outside of the external insulation boards surface ie the coldest part of the newly clad wall is the outside and not the inner sections.

Condensation – wet patches on the plaster leading to black mould or white “furring” – only occurs as a result of warm moist internal air hitting a cold surface such as when showering and seeing the mirror and windows steam up.

What is happening is that the water vapour in the air condenses from a gas to liquid  when it comes into contact with a surface whose temperature has dropped low enough to reach the “dew point ” . This is the point at which condensation thrives and the only real way to stop it is to increase the wall temperature sufficiently to allow the moisture to pass through the walls as vapour and escape to the outside.

What about Interstitial Sweating ?

This is when moisture becomes trapped in the inner core of the wall and cannot escape to the outside as quickly as it needs to and so builds up to a point where the vapour condenses to liquid and begins to wet the core of the wall. Unlike surface condensation this interstitial damp cannot be seen so is especially dangerous and harmfulto the structure of our homes.

All reputable  outside cladding and rendering systems have been tested by the Government funded British Board of Agrement for suitability of use on the UK’s solid wall homes and as part of the thorough testing regime they are checked to ensure they breathe more than sufficiently to avoid trapping moisture in the wall behind the thermal boards.

Better than Standard

The system renders that THINC Wethertex use al perform far in excess of the British Test Standard. The testing authorities use what they call a Dynamic Sweep Gas test to determine breathability and on their scale a material needs to score 25 or below to not be harmful to a home’s structure. Our thermal renders measured 12.8 which is classed as being highly breathable for a cladding system and way in excess of minium standards.

Stop Condensation Now 0800 975 5231 or Email your query

Posted in: Damp Walls & Insulation, Outside Insulation

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External Wall Insulation for Private Home-Owners

Whilst we have 36 years trading experience with outside insulation rendering in both the domestic and commercial sectors, we are especially keen to work with individual private home-owners to refurbish and retro fit the finest  external wall insulation systems available on the market and can design a bespoke system if so required.

We also welcome enquiries for new builds, social housing  and private extensions but the biggest gains from exterior insulation will be achieved by those people living in solid wall properties probably built before the 1930′s or the prefab style no fines concrete, Airey and  BISF steel top houses built in the 1950′s.

Solid Wall Outside Insulation
keeping you warm , saving you money




The fitting of exterior thermal insulated cladding to solid wall properties needs to be professionally carried out in accordance with best practice and to meet the Building Regulations Part L1B which oversee external wall insulation systems within the UK.

If in doubt about the implications of thermal cladding or want some explanation of the Building Regs L1B then please call or email us with your questions.

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Exterior Thermal Cladding a Victorian House

Exterior Insulation Cladding on older houses

For the majority of home-owners living in period homes it can be very difficult to picture what an outside thermal cladding system would look like. This is especially true if the walls are still the original brick and the new external wall insulation syustem is to be a coloured render finish.


Insulting the outside gable wall

Single Wall Insulation blends with the other elevation


As the above photo shows having just one outside wall thermally insulated can be visually attractive and can compliment the other walls, especially if the colour choice is well thought out.

Outside Insulation for Victorian, Edwardian & Georgian Homes

The vast majority of victorian and early edwardian homes are solid wall construction and so are perfect for the huge increases in energy efficiency and bill reductions that are a result of fitting exterior wall insulation.

Yet another option is to have the front facade thermally clad with a real brick finish either from a newly made brick slip tile or sourcing a reclaimed brick for a genuine reproduction finish.


Please call or email us if you want to discuss these and other options available for period homes and outside wall insulation.

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External Wall Insulation for Solid Walls

Traditionally solid wall homes ie those without a cavity, have been known as “ Hard to Heat ” or ” Hard to Treat ” homes as the heat quickly passes through the walls and this cannot be reduced by cavity wall insulation for example.

Until recent times in the UK there has been very little that could be done to insulate these types of walls but fortunately we are now beginning to adopt insulation practices that have been used in European countries such as Germany for more than 50 years, namely external wall insulation systems.

In laymans terms the system simply involves cladding the whole of the exterior walls with insulation sheets and then weather proofing the sheets with an attractive coloured render, brick or stone finish. The result is not only a new looking property but one that will be hugely warmer whilst also saving money on the heating bills in winter.

Thinc™  has been established by the UK’s leading external wall renovation company with over 35 years experience and as such we bring unrivalled expertise and knowledge to the specialised area of exterior solid wall insulation including our 15 year guarantee.

For more details, advice  or to arrange for a free quotation simply CALL NOW FOR FREE on 0800 975 5231 or email on


Posted in: Outside Insulation

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