Internal wall insulation
Make your home warmer & reduce condensation

  • Award winning
  • 15294 energy efficiency measures
  • Eco-friendly company
  • Nationwide presence employing locals

How Baxter Kelly works

Step 1.

Tell us about your home and circumstances

We then give you a real-time estimate of costs involved.

Step 2.

We get in touch with you to review specifics

This means we offer the right recommendations & supply an accurate quote

Step 3.

Our installers provide the work agreed on

And if any aftercare is required, we resolve issues as fast as possible.

Internal wall insulation – warmer in winter, cooler in summer.

If your home was built before the 1920s, its external walls are probably solid walls rather than cavity walls.

However solid walls can still be insulated. It’s a different process, and normally a more expensive one. However, it can lead to higher savings than with cavity wall insulation.

  • How much money will I save?

    On average, households with solid wall insulation make savings between £150 and £300 a year, depending on size of the property, which will only increase as energy bills go up.

  • What is internal wall insulation?

    Reducing heat loss within your home by installing insulation within its internal property walls – also known as dry lining - is an effective way to reduce heat loss.

    We firstly fit insulating material to your walls followed by a vapour barrier, protecting against air penetration. Nearly all property types are suitable for this type of insulation and installation (due to the speed of installation) is fairly straightforward and hassle-free.

  • How long does it last?

    Internal wall insulation installs come with a 25-year CIGA guarantee

  • What's the process?

    Internal wall insulation is done by fitting rigid insulation boards to the wall, or by building a stud wall filled in with insulation material such as mineral wool fibre.

    Due to the thickness of the insulation, it will slightly reduce the floor area of the room(s) in which it is applied – around 100mm, and we may need to temporarily remove things like door frames.

    It can also make it more complicated (though not impossible) to hang heavy items such as large picture frames.

  • How long does it take?

    While it can vary depending on the size of the property, on average the process takes 3-5 days.

  • What expertise does Baxter Kelly have?

    All of our technicians are fully qualified and accredited. We’re available to answer any questions you may have.

How much does internal wall insulation cost?

Work conducted under the ECO or ECO Flex schemes come at zero cost to the customer. The price of any work conducted outside these schemes is dependent on the size of the property and location, among other factors.  Finance available. Get a real-time quote below.

Internal Wall Insulation

Should I be insulating my solid wall house internally or externally?

When you’re weighing up the pros and cons of both types of insulation, there are a few factors to consider:

  • If you want to keep the external appearance of your property looking the same, internal wall insulation may be more suitable.
  • Planning permission is required for external wall insulation (because it changes the appearance of the building), whereas in most cases internal wall insulation doesn’t.  It does have to comply with building regulations however.
  • External insulation is less disruptive and can be installed with little inconvenience to house residents.
  • Internal insulation is an excellent option if you were looking to decorate anyway, as it leaves you with a smooth plasterboard finish.
  • If your internal floor space is already tight, internal insulation will make your rooms slightly smaller which may make external wall insulation a more attractive option.

Request a quick quote

Customer Reviews

Here at Baxter Kelly, we pride ourselves on our reputation.

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One very happy family

Extremely happy with the service I have received from the first phone call to the installation. Thank you very much, I would highly recommend you to everyone. Very professional and installers were a pleasure.

Danielle A.

Five stars

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Great install

We had external wall insulation fitted at our property, I am really happy with the finish and the work was completed to a great standard. The team were polite and kept us updated during the install.


Would 100% recommend them to anyone in the future.

Jess S.

Five stars

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Highly recommended

Excellent service from start to finish. Would recommend to anyone who requires their home insulating!!

Graham J.

Five stars

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