Frequently Asked Questions

Answers to Common Questions About Our Insulation Services, Damp Surveys and Loft Boarding

Is cavity wall insulation suitable for all properties?

No. Cavity wall insulation works well in properties with low to medium exposure to wind-driven rain, but it is not suitable for every building. The property type, construction method, cavity width and exposure zone all need to be assessed. We always carry out a thorough survey before recommending installation. If your property is not suitable, we will tell you.

The most common signs are damp patches on internal walls, black mould in corners, condensation on windows, peeling wallpaper and a persistent musty smell. Your walls may feel cold or damp to the touch, and you might notice your heating bills have increased. If any of this sounds familiar, it is worth getting a professional assessment.

We carry out a thorough assessment of your property first, including thermal imaging where needed. We then use our own purpose-built insulation removal vacuum to extract the material from the cavity. The process is safe and does not damage the structural integrity of your walls. All drill holes are sealed and colour-matched afterwards.

Pricing is calculated on a square metre basis and depends on the insulation type being removed, the size of the property and the construction type. We provide a clear quote after the initial survey so there are no surprises.

Yes. Many homeowners choose to have EvoBead EPS bead insulation installed once the old material has been removed. EPS bead is moisture-resistant and specifically designed for properties where traditional insulation has failed. However, whether reinstallation is suitable depends on your property and its exposure zone. We will always give you an honest recommendation.

If your loft insulation is more than 20 years old, has been compressed, water-damaged or contaminated by rodents, it is probably time for a replacement. Current Building Regulations recommend at least 270mm of mineral wool or equivalent. If yours is thinner than that, upgrading will make a noticeable difference to your heating bills and comfort.

It can be. Older mineral wool fibres irritate the skin, eyes and lungs. Rodent-contaminated insulation can carry health risks including Hantavirus. Even standard removal creates a lot of airborne dust. That is why we recommend professional removal rather than tackling it yourself. Our team uses proper protective equipment and handles all waste disposal.

In most cases, yes. For a standard-sized loft, we can remove the old insulation and install new material in a single visit. Larger properties or heavily contaminated lofts may need a little more time.

Not the way we do it. We use raised boarding systems that sit above the insulation, so the insulation maintains its full depth and thermal performance. If boarding is laid directly onto insulation, it compresses it and reduces its effectiveness. Our raised system avoids that problem entirely.

Absolutely. We often carry out insulation replacement and loft boarding as a combined project. It makes sense to get the insulation right first, then board over the top. One visit, one job, everything done properly.

Our damp and condensation surveys include a full internal and external visual inspection, moisture profiling with professional equipment, hygrometer readings, dew point analysis, surface temperature checks, ventilation assessment and a clear explanation of what we have found. Written reports are available for an additional fee. Pricing starts at £195+VAT for a diagnostic survey.

No. We do not carry out chemical damp proof course injection treatments. Our focus is on accurate diagnosis, practical recommendations and insulation-related remedial work. If you need specialist damp proofing, we can point you in the right direction, but we believe in doing what we are good at rather than offering services outside our expertise.