Improve your home and save hundreds off your heating bills with solid wall insulation[1]

British Gas now offers solid wall insulation for private homeowners and landlords to help you stay warm and reduce your energy bills.

Save up to £250 on your heating bills every single year[1]. We're currently installing solid wall insulation in Plymouth in partnership with Plymouth Energy Community and Plymouth City Council.

House with solid wall insulation

House with solid wall insulation

Get solid wall insulation from British Gas

If your home could benefit from solid wall insulation, we will manage the entire process, using quality materials and approved suppliers. So you're guaranteed an expert job.

As part of the service we will provide you with:

  • Free no obligation survey
  • An insulation quote
  • An Energy Performance Certificate (EPC)

What is solid wall insulation?

It's a layer of insulation fixed to the wall of your home and covered with a special render, designed for solid wall properties.

Solid wall insulation diagram

Improve the look of your home

Solid wall insulation can help improve the look of the exterior of your home.

Before and after solid wall insulation

Before solid wall insulation

Before and after solid wall insulation

After solid wall insulation

Ways to help with the cost

British Gas in partnership with Plymouth County Council and PECC:

British Gas is working in partnership with Plymouth City Council and Plymouth Energy Community (PECC). So, if you live in the Plymouth area, call us today and find out if your home could benefit.

Working out your homes wall type

Solid wall image

Covered/rendered walls

If your home has covered brickwork, you can measure the width of the walls surrounding the windows and doors.

Solid walls will usually be less than 260mm, if your walls are wider they will probably have cavities.

Solid wall image

Solid walls

If your home has an irregular brick pattern with both long and short edges of the bricks on show, usually means it has solid walls.

Cavity wall image

Cavity Walls

If your home has a regular brick pattern, showing the long edge of the brick only, usually means you have a cavity.

Keep your home warm and your heating costs down

With solid wall insulation, your home will warm up quicker and stay cosier for longer. Plus, you'll save on your heating bills.

Building Detached Semi-detached Mid-terrace Bungalow
Annual saving £455 £260 £175 £145

The exact amount depends on your home. But to give you an idea if you've got a semi-detached home you'll save up to £260, every single year (This is what the Energy Savings Trust estimate, you can find out more at

Talk to us about solid wall insulation call 0800 086 1565[2].

Map logo

Area we're currently working in

  • Plymouth

We will be moving into other areas over the coming months.

Here's how we'll install it for you

Your solid wall insulation will be tailor-made for your home. We'll arrange for one of our Energy Experts to survey your property. They'll suggest the appropriate solid wall insulation and you choose the colour for the final render.

We'll install it in these simple steps - in around three weeks:


We'll put scaffolding on the outside of your home, removing any fixtures as we go.


We'll apply your insulation with the colour and texture of your choice.


We'll then put back any fixtures, remove the scaffold, leaving you with a new, warmer home that looks great.

Here's what some of our customers had to say:

"I can't praise the workmen enough, they were polite and considerate to us and our home"

J. Stevens

"We had timber cladding with not very good insulation behind it, this was all replaced with this new render insulation and it makes our house look so much better"

N. Daley

"Since I have had the External Wall Insulation done I have noticed that every room is a lot warmer, I can definitely feel the difference"

S. Shaw

British Gas is the trading name of British Gas New Heating Limited which is authorised and regulated by the Financial Conduct Authority for it consumer credit activities. Registered in England & Wales (Registered No. 06723244). Registered Office: Millstream, Maidenhead Road, Windsor, Berkshire SL4 5GD.

[1] Savings figure source, February 2014. Actual savings depend on individual circumstances.

[2] Phone lines are open 8am–6pm Monday to Friday. Closed on Bank Holidays. Calls are free from a BT landline, however charges from mobile phones and other networks may vary. Calls may be monitored and/or recorded for quality assurance and compliance purposes.