Reducing your bills with cavity wall insulation

Cavity wall insulation using EPS bonded beads
Here's how we can help you:
- Provide advice on the various insulation systems available
- Recommend one of our approved contractors
- Explain how the ECO, Green Deal and grant schemes work
- When you ask us for advice about cavity wall insulation or loft insulation, a qualified surveyor will survey your home and advise you on the suitability of cavity wall insulation and which system is appropriate for your home.
There are three main cavity wall insulation systems available in the UK: today, but which is the most suitable for your home?
The survey process
By working with a range of reputable contractors, and using several systems, we can recommend the one that's right for your house. Based on your home's size, style, age and location we'll advise you on the most suitable product for your home.
When we arrange a free quote for cavity wall or loft insulation, a qualified Thias energy surveyor will advise you on the best course of action. Read more about the survey process >
The current standard for loft insulation is for it to be at least 270mm deep (around 1'). Very few houses we see meet this standard, but a correctly insulated loft can reduce your heating costs by up to 25%.
Insulation for stone houses
We provide EPCs and advice on the ECO scheme, (Energy Company Obligation), and advice on hard to treat properties covered under the ECO scheme.

Bonded bead cavity wall insulation
Polyurethane foam has the added advantage of increasing the structural stability of a wall, whereas bonded beads is the more cost-effective option.
For properties with stone walls a more detailed examination is required.
Specifically we check, that for each wall:
- The cavity is of sufficient width to ensure it is fully filled with insulation, since by their nature stone walls may have an uneven cavity
- There are no obstructions in the cavity
- There is adequate sub-floor ventilation
- There is no evidence of ‘bridging’ of the cavity, which would allow dampness to permeate from the outside to the inner wall
In our experience random or coursed stone walls tend to be either:
- Suitable for cavity wall insulation
- Requiring some localised repair (eg, resolving a dampness issue) before cavity insulation can be installed
- Not suitable for insulation (eg, because of inconsistent cavity width or obstructions)
As part of our survey we will look inside the cavity with a check scope or boroscope and advise you on the options available.
Expertise & Advice
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