SOLID WALL INSULATION 2018-04-06T16:46:56+00:00


Up to 45% of heat from your home will escape through the walls if they are not insulated. If your home was built before 1930 it will most likely have solid external walls with no cavity. The lack of a cavity means more heat can escape from your house through the walls.

Solid wall insulation could help you save up to 25% on fuel bills!

Insulation can be applied to exterior of your walls making it much more difficult for the heat to pass through your walls.

This is a powerful tool in the battle to save energy, as the insulation creates a cocoon that slows down the rate at which heat escapes, keeping it inside your home for as long as possible.

If you’re not sure whether you have solid walls, you should be able to tell by looking at the brickwork on the outside of your house. Our Assessors will be able to identify whether your house is built with solid or cavity walls when they visit your home to undertake an assessment.

Solid Wall Brickwork
If your home has solid walls, you will be able to see a pattern showing the long and short side of the bricks like this.

If your home has cavity walls, you will only be able to see the long side of the bricks like the image below. Visit our Cavity Walls page to see how we can help improve homes of this type.

If your home has Cavity Walls, don’t fear, we have insulation measures that can help.

See our frequently asked questions below for more information or contact the team on 01173521180.

How much could I save on my heating bills?

Every household is different and savings depend on the size and type of your property as well as any existing insulation measures and your average energy consumption. The following figures are published by the Energy Saving Trust and are a realistic guide to the level of savings you might expect to make:

Property type  Detached  Semi-detached or end terrace   Mid terrace  Bungalow  Flat
 Annual saving  £450  £270  £180  £180  £150

Source: Energy Saving Trust

How much will it cost?

External wall insulation: typically £6,000 (mid terrace) to £15,000+ (detached)

Will I have to pay anything up front?

If you need help to cover the installation costs, there are a number of potential options available to you. We’ll look at your eligibility and our team can talk you through other finance options to help you spread the costs.

How soon can I expect work to start?

We usually have availability within five to ten days of receiving your confirmed booking and payment of deposit. Our team will work with you to schedule a date that is convenient to you.

Can you be flexible with the dates for my installation?

Of course! We can work with you to arrange a date and time that suits you best. Due to the nature of the installation work there are certain times of the year when it’s best to work on your home. The warmer months from April – September would be our recommendation.

What is the insulation product used on external wall insulation?

Our standard specficication is to use an EPS insulation board. EPS stands for expanded polystyrene.

What if I don’t want to use EPS insulation? Are there any other options available?

If you would rather use a different product we can discuss options with you. Essentially there are four different insulation products that can be used which have slightly different properties. Some may work better in certain situations to others, may require a thicker product to achieve the same performance and may cost more money.

You will need to request an alternative insulant material if you would like to get a quote for that instead of a standard EPS quotation. The table below outlines basic information to help you decide on what is best for you.

Do I need to be at home when the work is carried out?

For exterior wall insulation: No. All we need is your permission to go onto your land.

How long does the work take?
We aim to complete all the work within three weeks (15 working days) from start to finish. It is a major programme of work, but the results will certainly be worth the wait!

For external wall insulation: These timescales are weather dependent, but we will do our best to keep as close to schedule as possible.

What are the weather conditions that can affect installation?

A number of weather conditions can slow the installation. If the temperature drops below 5C the bonding and render cannot be applied. Heavy and persistant rain can stop the installation process. We cannot apply the final top coat of render unless there is at least 24 hours without rain.

Can I come and go easily?
Yes, access to your property will not be affected. Depending on how close your exterior walls are to your driveway, we may ask you to move your car whilst work is taking place nearby.

What preparations do I need to make?

For external wall insulation: No preparation is necessary. We handle all the ‘pre-enabling’ work, such as moving cables, disconnecting outside lights and taps as part of our service, and we re-install or position them when the work is complete.

Will there be any mess?

We take exceptional care to look after your property and minimise disruption to you. Our installers will clean down the area they have been working on each evening and remove any waste materials from the site on a daily basis.

Will there be much noise?

Unavoidably, there will be some noise, as with any building works. We can, however, schedule work to take place at times convenient to you, so if you work nights, it’s not a problem.

Will my telephone still work?

Will my satellite dish signal be interrupted?
No. We can re-attach your satellite dish to the scaffolding during the work to minimise any disruption to you whilst work is taking place.

Will you need a power supply?
No. We bring a remote power supply so will not need to use your electricity.

How do I know that all the installers/workmen will be trustworthy?

Our contractors are fully qualified and approved to the required standards of technical competence under the Government Accreditation process, as well as being police (DBS) checked. Everyone is committed to providing a first class service, based on quality, care and consideration.

What choice of colour can I have?

There is a wide choice of render colours available but most people choose from a range of mainly whites, creams and pastel shades. If you would like a different colour there may be a small additional cost and a two week order delay.

Why would there be an additional cost for other colours?

The render topcoat is pigmented, the darker the colour the more pigment is required, this is why the cost maybe slightly higher. A pillarbox red or leaf green will cost more than cream because of the extra pigment required to make it a deep colour.

Why will it take longer to order?

If you choose one of the less popular/ non-standard colours we will have to make the top coat render to order which will add a couple of weeks to the delivery time.

Will the render discolour?

No. But it will weather naturally, as with any building material.

What happens if I accidentally damage the render?

The products we use are extremely tough and resilient to damage – in fact more so than your existing finish. For example, it is unlikely that a scrape with a child’s bike would chip or scratch the render, as it might with traditional render.

In the case of surface marks, we provide a touch up kit, colour matched to your render, so you can simply paint over any marks.
Should accidental damage occur, however, solid wall insulation is relatively simple to repair. Simply call our customer careline for advice and to arrange for a repair quote.

How much will it increase the thickness of my walls by?

External wall insulation: will add 97mm to the outside of your property. However, if space is an issue (such as in a passageway between two properties), a more condensed higher density board is available that will add just 70mm to the exterior depth.

Is there a guarantee?

Yes. We offer a 25 year guarantee for the products used.

I live in a semi-detached house – can I still have external wall insulation installed?

If your neighbour’s house is not already insulated we will insert a cavity wall barrier to divide the two properties. This stops any material passing through. Of course the ideal scenario is that you will talk to your neighbour and encourage them to have it done at the same time.

What about damp?

Provided it is done properly, insulating the outside of your home will give you a new weather proof layer that will protect you from penetrating damp for years to come, and should deal with any existing penetrating damp problems you may have had due to poor wall finish. The insulation will also increase the temperature of the internal surface of the wall, making it less likely that you will get condensation problems on your walls.

The main damp issue to be avoided with external wall insulation is rising damp. If you have an existing problem with rising damp, it will have to be treated before the insulation is fitted, otherwise you run the risk of trapping the damp inside the wall structure and so making the problem worse.

It is also important to make sure that the new external insulation layer and cladding do not bridge the damp proof layer in the wall. The insulation should start above this, otherwise water may be able to use the insulation to climb above the damp proof membrane, causing rising damp where it wasn’t a problem before.

Our installers will always ensure that there are no problems with rising damp before commencing work and that the external surface is fully weatherproof throughout, so you should not see any new damp issues and you may see some benefit if condensation has been a problem in the past.

Will there be any noise reduction?

Where road noise or the sounds of children playing or dogs barking outside is an issue, you will notice a significant reduction in exterior noise as a result of solid wall insulation. But, to get the maximum noise reduction benefit your property must also be double glazed.

Other questions…

The information above covers the most common questions but if you have any questions at all about the measures on offer, please call our team on 0117 352 1180.