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Man pulling apart roll of loft insulation and fitting it.

Why loft insulation?

Around 25% of the heat in your property will escape through an uninsulated loft.

Save energy and keep your valuable heat in for longer!



Loft insulation

Loft insulation roll

Using premium insulation

We use Knauf Loft Roll 44 (glass mineral wool roll), an insulation material specifically designed for use at ceiling level in cold lofts. It’s non-combustible, long-lasting, and made with up to 80% recycled materials.

Knauf uses a unique bio-based binder that holds the insulation fibres together, which makes the insulation exceptionally easy to handle. This has the long-term benefit of making your loft a much more usable space, thanks to:

  • Soft, non-itch texture
  • Extremely low levels of dust during and after installation
  • No volatile chemicals (such as formaldehyde or phenol) that can cause irritation

The binder – Knauf’s ECOSE® Technology – is also made from natural and renewable raw materials, and is 70% less energy-intensive to make than traditional binders.

Man laying out a roll of loft insulation.

Following a professional process

Before our team starts work, they will run through what they’re going to do, just to make sure it’s in line with what you’re expecting. They’ll then make sure your floor coverings are protected, before completing the necessary checks relating to ventilation, electrical cables and downlights. Once this is complete, they can begin fitting the recommended two layers of insulation in your loft, to a depth of at least 270mm.

The first layer is laid between the ceiling joists and will be at least 100mm thick. The second layer is laid at right angles to the first, and will be at least 170mm thick. The thicker the second layer is (and the more layers we add) the more energy you’ll save!

The last stage of the process is to upgrade the insulation of the pipes and tanks in your loft space, and insulate your loft hatch.

Qualified insulation company

By Viridian’s insulation experts

Our loft insulation is always installed by our own trained and certified specialists who will fit your insulation to the highest standard. With that, you can expect it to last for up to 40 years, paying for itself many times over.

Our surveyors, site supervisor, and senior installers, are all qualified to an NVQ standard, so you can rest assured that all works will be completed with technical competence, timeliness, and professionalism.

We operate in Kent, Sussex, Surrey, and Greater London and offer bespoke, professional services that add value to your home.

Read our blog or visit the Viridian Facebook page to learn more about the benefits of insulation, what we do and how we work.

Watch our loft insulation video!

Essentials & Extras

Man vacuuming loft and removing dust and cobwebs.

Loft cleaning

If you want to reclaim and transform a dusty and dirty ‘no-go’ loft area, take advantage of our brush-down and vacuum service.

Man carefully holding loft board up.

Loft boarding

Maximise your storage by using the valuable space in your loft. We’ll carry out secure loft boarding for you – just add it to your order.

Loft ladder fully installed in loft.

Loft ladders

No more struggling to climb into your loft space: ask us to fit a safe and stable loft ladder that makes it easier to access your loft for storage, maintenance and repairs.