Frequently Asked Questions

Want to learn more about how loft insulation works? Interested in free loft insulation grants or cavity wall insulation grants? Curious about the savings that home insulation can give you? Feel free to browse our FAQs, and if you want to talk to us about eligibility for free home insulation grants, or book a no-obligation survey, please get in touch with us.


Loft Insulation

Can I get free loft insulation?

If you’re entitled to state benefits like Pension Credit or Child Tax credit, then you’re probably eligible for a free loft insulation grant under the Government ECO scheme. The size of this grant will depend on the amount of carbon saving the insulation is estimated to make.

In a few cases, the survey will highlight that any energy saving grant you’re eligible for will fall short of what is required for the work to be undertaken. That’s why we may have to ask for a contribution from you before we carry out the installation.

But don’t forget, loft insulation can save you up to £240 in energy bills (Energy Saving Trust 2016) so your investment can pay for itself really quickly.

What is loft insulation?

Loft insulation is man-made mineral fibre in a roll form. Often referred to as “Quilt” the material generally used is made from silica sand, creating a wool-type product also known as glass wool. Old style loft insulation was known to be itchy, but modern insulation has been re-designed to be soft to touch and virtually non-itchy. Regardless though, it will be delivered into your loft sealed inside a plastic package.

How long does loft insulation last?

Providing the material is left undisturbed, it is maintenance free and should last indefinitely.

How do I get loft insulation installed?

Once a free no-obligation survey has been carried out and you’ve decided to go ahead with your installation, a member of our Installation Department will contact you to make a mutually convenient arrangement for the installation to be carried out.

Alternatively, feel free to contact us so a member of our team will schedule a mutually convenient appointment.

Do I need to take everything out of my loft?

You’ll need to make sure that any items stored within the loft space are removed prior to our crews arriving. We may, at our discretion, remove small items such as Christmas trees and suitcases, but our technicians are not able to move either general or large amounts of items.

If you are unsure, please contact us beforehand.

Do I need to provide anything?

No, our installation teams have all the equipment they need, including lights and ladders.

Do I need to remove any boarding?

To make your insulation as effective as possible, we’ll need any existing boards removed prior to the date of installation.

If you’re unable or do not want to remove the boards but still want to proceed, we will follow the standard industry best practice and lay the insulation over the boards.

How is loft insulation installed?

Our highly trained technician will arrive on the agreed date. They will be wearing our traditional red and blue BillSaveUK uniform and will produce their identification on request.

The loft insulation material will be in sealed bags, which will be carried into your loft and opened there to prevent any mess elsewhere in your home. The insulation will be laid between and across the joists and insulate your loft hatch.

Please note that once we have finished, the joists will not be visible and for your safety, we recommend that you do not access the loft without the use of crawling boards, and only still if you are aware of the exact position of the joists.

How long does it take to install loft insulation?

The installation should take between 1-2 hours to complete.

Is there much mess?

Unlike some other installers, we pride ourselves on making sure there is as little mess and disruption as possible. A small amount of dust may fall from the loft hatch but this will be cleared by the crew and all packaging will be removed from your home before we leave.

Will loft insulation save me money?

The Energy Saving Trust (2016) calculate that the average saving per year from installing loft insulation is approximately £240.

Plus it’ll also help make your house feel warmer during cold weather and improve the energy efficiency rating of your home.

Just as importantly, it’ll also help you do your bit for the environment by reducing your carbon footprint by around 990kg of CO2 per year compared to an uninsulated loft.


Cavity Wall Insulation

Can I get free cavity wall insulation?

You might be eligible for free cavity wall insulation under the Government ECO schemes, and we’ll check this for you when you first get in touch with us.

The amount of a grant for cavity wall insulation varies with the level of carbon emission savings made by having the work done.

In some cases the no-obligation survey will highlight that your insulation grant will fall short of what is required for the work to be carried out. That’s why we may have to ask for a contribution from you before the installation, but don’t forget that this should pay for itself in a relatively short period of time in energy savings of up to £275 per year (Energy Saving Trust 2016).

Want to know more? Watch this video of a real-life survey

Do I have to do anything before installation takes place?

The technician will need to gain access to all walls, so he will need to get inside attached garages, lean-to-sheds, conservatories etc. If you have a wall right on a boundary, you may like to mention to your neighbour that the technician will need to go onto their property.

It’s also a good idea to remove vehicles from the drive and items close to the walls. In return this will give the technician better access for equipment and tools.

Some vibration might be caused by drilling, so you might want to remove ornaments, particularly on external walls, for safety and peace of mind.

Here’s a video of one of our cavity wall insulation teams in action

Does the technician have to come into the house?

The technician needs to undertake checks before and after installation, including any heating appliances, so it is essential that they have access inside the property.

Does installing cavity wall insulation cause any mess?

The drilling outside will create some dust, but our technician will clean up after the installation.

Please note that the  nature of our weather can at times hamper the clean up process, but unlike some other installers of cavity wall insulation, we pride ourselves on making sure you’re happy with the work that is carried out on your property.

You can see how our cavity wall insulation teams clear up after themselves in this video about the installation process.

Do I already have cavity wall insulation?

Check the outside of your house for a pattern of drilled holes approx 1 – 2 inches wide. This may indicate that some insulation has been installed previously, but does not necessarily mean that the cavities are completely full. We can help if you need your cavity wall insulation topped up.

Also, during your survey, we’ll take measurements of your home including a depth gauge and inspection of the cavity to be filled. From these measurements we know the amount of material required to correctly fill your walls.

The technician will record this data and match this against the quantity of insulation used. Our internal office staff operate a 100% check of this data and measure your results before we issue your 25 year guarantee.

We also carry out spot checks of installations to ensure the high quality that we’re known for.

Here’s a video showing how the pre-installation survey works

What about the ventilators that are in the external wall?

The technician will investigate them to check they are sleeved. If they are not, the technician will remove them and seal around them to stop them being blocked by the insulation. Other vents, which may be redundant, such as cavity vents or vents that are in bedrooms may be closed off.

The technician should discuss these with you, so if you have any questions please ask.

What about filling the holes caused by drilling?

The technician will fill all the injection holes with mortar that closely matches the existing colour and texture.

Don’t worry if the new mortar colour doesn’t match the original straight away. On some older properties or weathered facades it may take several months for the newness of the mortar to blend.

On pebbledash finishes, they will apply pebbles to the surface to match the existing finish, as close as possible.

What will you do about painted areas on my external walls?

We will fill any holes but we will not normally paint over them because, even if the original paint is used, it may not match due to natural weathering that has occurred since it was last painted.

When will I receive the guarantee?

BillSaveUK will carry out the guarantee application on your behalf and send it to you. Please note it can take up to 8 weeks.

Will cavity wall insulation make my house feel warmer?

Cavity wall insulation dramatically reduces heat loss through the insulated wall therefore you will be able to achieve the same temperature in your home by turning your thermostat down by a little.

Independent research also shows that it can also save you up to £275 a year on your energy bills (Source: Energy Savings Trust 2016)

Plus, it can make your house feel cooler in the summer as the insulated cavity will prevent some of the suns heat from entering the walls.

What should I do if I want to talk to you after the installation?

Most questions or concerns can be resolved swiftly and efficiently so please do not hesitate to speak to a member of our customer services team.

How long will the cavity wall insulation last?

Your new cavity wall insulation will last for the lifetime of your home. It is maintenance free.