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External wall insulation

Do you fall out of love with your home a little bit every winter? Are your heating bills high? Do you battle with condensation, damp and draughty rooms? If this sounds familiar then our layered external wall insulation system could transform your property.

The magic of external wall insulation

If you crave a warm and cosy home with no traces of damp or condensation and lower heating bills where you feel cocooned and protected from the elements, then external wall insulation could be the answer you’re looking for. 

Once our advanced external wall insulation system has been fitted, your home will instantly feel warm and cozy and you’ll notice that your heating bills are lower. That’s because up to 40% of the heat in a building is lost through the walls and a Pioneer insulated house uses 30% less energy than it did before we started work. The Energy Saving Trust states that you can save up to £415 a year by having external wall insulation fitted.

There’s no need to worry about the exterior of your property as once the smooth crack-free render has been added, it will look brand new. We will also take care of every detail from the moving of pipes through to ensuring that architectural features are protected and enhanced. When the work is complete, it will feel as if you have a brand new home!


An insulated home is a happy home!

Meet the family whose home was transformed with external wall insulation


Following a seven month redevelopment project, Ted and his family got Pioneer to complete external wall insulation on their house. “It is a large building and we wanted something that fitted in with our building work,” says Ted. “The Pioneer team were totally flexible and worked closely with the builder. The finish on the house is fantastic and the team’s attention to detail is impressive. They are real perfectionists!” We are delighted. Our house looks amazing and it’s so warm in the winter. I would recommend Pioneer for external wall insulation 100%.”


Is my home suitable for external wall insulation?

External wall insulation is the right solution for your home if:

  • Your property is made of solid brick, stone or concrete.
  • The walls are structurally sound.
  • It is not a listed building or in a conservation area/world heritage site
  • There is  good access to the outer walls.
  • The property doesn’t lead directly onto a pavement.
  • You don’t have cavity walls either filled or unfilled. 

Not sure if your property is suitable? Call us for expert advice.  

Boosting your home’s energy performance rating is not the only benefit of external wall insulation. 

There are so many others.

  • Draughts are prevented by sealing any cracks in the walls.
  • Damp and condensation are stamped out. 
  • Mould is banished for good. 
  • It improves the soundproofing of your home, so you’ll hear less unwanted noise from the outside.
  • The exterior of your home will be transformed with a smart, newly rendered finish.
  • The temperature of your property is regulated all year round.
  • The lifespan of your external walls increases.
  • It can be applied without disruption.
  • Your property will go up in value. 
  • You’ll be the envy of your neighbours when your property gets a smart finish and it looks as if you’ve got a new house. 

External wall insulation - how it's done

Our step-by-step guide to the fitting of our advanced external wall insulation system

  • The first thing we do is make sure the surface of your house is clean, dust and mould free.
  • Next we fit an aluminium frame to support the insulating board. It is affixed just above plinth level.
  • We fit the insulating boards made of EPS lightweight polystyrene, which we favour due to it’s durability and insulating properties. They are attached with glass reinforced plastic fixes.
  • Drip beads are situated between the insulation boards and the plinth, to divert rain water away from the foundations.
  • We add specialist corner beads to ensure beautiful straight lines around windows and doors.
  • The plinth is insulated with thinner boards to accommodate the drip beads.
  • Render is added along with a reinforcing mesh. This will make it hardwearing and ensure that cracks don’t appear in the future.
  • A final decorative coat of render is added in a colour of your choice. This is a breathable membrane, which means that damp won’t be a problem. Any stains or dirt marks can be removed with water and a brush.


Not sure if your property is suitable? Contact us for expert advice.  

Book your external wall insulation job now with VAT at 0%

Why insulate my property?

Insulating your property is one of the best ways to reduce your energy bills while making your home warmer and more comfortable.  You’ll also reduce your carbon footprint and external wall insulation will transform the appearance of your property making it look as good as new.

What does external wall insulation do?

It forms a layered shield that protects your home from the elements outside and stops heat from escaping. It helps to regulate the temperature indoors throughout the year and will also help to stamp out condensation, damp and mould.  

How much can I save by insulating my home?

There are many factors which affect the answer to this question, such as what type of insulation you choose and the kind of property you own. Those living in a detached house can save up to £460 per year by having external wall insulation installed, while you can save up to £250 a year by having loft insulation installed in a detached house. 

How much will it cost to insulate my home?

The cost of External Wall Insulation will vary considerably depending on the size and complexity of the property, such as whether the roofline needs extending, original features etc. 

Typically our prices are in the range of:

  • £12,000-£15,000 for a typical mid terraced property without rear extension
  • £20,000-£24,000 for an average 3 bedroom semi-detached or end of terrace property
  • from £28,000 for detached houses, depending on size
  • from £21,000 for bungalows, depending on size
  • £15,000 – £20,000 for park homes 

Our Loft Insulation prices start from £1,450.

All prices include VAT.

Prices are subject to change and are accurate at time of publication – March 2022


  • The job was done to a very high standard; quickly, efficiently and with minimal disruption or mess. I would highly recommend Pioneer Insulation to anyone. A professional and friendly company to deal with.

    Loft insulation
  • The work was completed to an excellent standard, in good time and with tidiness and friendliness. We greatly appreciate the quality of work and the way everything was explained clearly and simply. We would highly recommend this company.

    Boiler replacement.
  • Professional team, worked quickly and efficiently. I had constant contact with the office and was kept up to date with all aspects of the work and when each part would take place.

    Exterior chimney breast repaired.
    Walton on Thames

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