Insulation | Loft

Hybrid heat pump

What Is Loft Insulation?

Roof space insulation is a simple and effective way to reduce heat loss in your home. Wool insulation has lots of air pockets that work to trap heat, helping to reduce your energy bills by up to 20%. 270mm of insulation is recommended for maximum efficiency.

Got cavity wall and roof space insulation done In January. The guys were so quick, efficient & tidy! Amazing. Three rooms upstairs and the landing where always freezing, not now!It really has changed my home comfort. Thank you.


Home Insulation Customer

Very happy with the professional and speedy job that Refresh NI did on my loft insulation. All sorted in a couple of weeks and just before the cold weather. Friendly fitters came and nothing was too much trouble. I’ve contacted several other places in Belfast and was very let down by the service but couldn’t recommend Refresh any more highly.

Loft Insulation Customer

Fantastic company!
All insulation work was carried out promptly. Emails and queries were answered promptly. Very efficient and smooth from start to finish. Highly recommended.

Home Insulation Customer

Benefits Of Loft Insulation






Free Roof Space Insulation

The Northern Ireland Sustainable Energy Programme offers free and part funded insulation to homeowners and private tenants living in Northern Ireland.

For full eligibility criteria and to apply for free home insulation please visit the link below.

NISEP - insulation
Cavity Wall Insulation

Cavity Wall Insulation

Cavity wall insulation is most effective when installed alongside roof space insulation, as it helps reduce heat loss through your walls.

Cavity wall insulation involves filling the gap between the inner and outer walls of your home with insulation bead. Learn more about cavity wall insulation below.

Loft Insulation Considerations

Storage Space

If you use your loft or attic for storage, boards will need to be placed over the joists after insulation is fitted. 


Air flow is needed to keep your property fresh, dry and healthy. Therefore it is important to have roof vents fitted as part of your insulation install.