Loft insulation is one of the simplest and most cost-effective ways to make your home warmer and bring your energy bills down. In a house with little or no insulation, a large share of your heating escapes straight through the roof.
At ST Lofts, we install and top up loft insulation to the current recommended depth, so your home holds on to its heat for longer and your boiler doesn’t have to work as hard.
Whether your loft has never been insulated, or the insulation is thin, squashed or decades old, we’ll get it up to standard without disturbing the rest of your home.
We lay mineral wool insulation between the ceiling joists, then add a second layer across them at right angles. This builds the depth up to around 270mm, the current recommended level, and covers the timber joists that would otherwise let heat escape.
We also keep the eaves clear so air can still move through the loft, insulate exposed pipes and water tanks that will now sit in a colder space, and fit insulation to the loft hatch so warm air can’t escape there. Our guide on how loft insulation improves energy efficiency explains why each part matters.
We’re loft specialists, so we understand how insulation works with the rest of your loft, from ventilation and storage to access. Every job is carried out by our own team and finished properly, not just rolled out and left.
Before quoting, we check the depth and condition of your existing insulation, look for damp or ventilation problems, and see whether you plan to use the loft for storage. That way we can recommend the right approach, rather than simply adding more on top.
Insulation Top-Ups
Adding a new layer to bring older, thinner insulation up to the recommended depth.
Full Loft Insulation
Insulating a loft that has little or nothing in it, between and across the joists.
Insulation with Raised Boarding
Combine insulation with raised loft boarding so you can store items without squashing it.
Insulated Loft Hatches
Replace a draughty hatch with an insulated one. See loft hatch installation.
If your home feels cold or your heating bills keep climbing, topping up your loft insulation is one of the best places to start. It’s a quick job that keeps paying back every winter.
We offer free, no-obligation surveys and clear, honest advice on what your loft actually needs.
Some of the most common questions about loft insulation.
The current recommended depth for mineral wool loft insulation is around 270mm. If you can see the tops of your ceiling joists, you almost certainly need more.
Most loft insulation jobs are completed in a day, depending on the size of the loft and how much needs clearing or preparing first.
Yes, but don’t lay boards straight on top of the insulation, as squashing it reduces how well it works. Raised loft boarding lifts the floor above the insulation so you can store safely.
You may be eligible for help through government schemes such as the Great British Insulation Scheme, depending on your circumstances.
