Loft insulation · Salford, Greater Manchester
Loft insulation in Salford: 21m² of Old Insulation Replaced With 300mm
In September 2026, EcoTrust Roofing & Insulation Ltd removed old, dirty loft insulation from a 21m² loft in Worsley, Salford, Greater Manchester. The team cleaned out between the joists and laid new Knauf mineral wool to 300mm in one day, covered by a 10-year guarantee.
The problem
The loft had old, dirty insulation across the 21m² floor, with debris between the joists. Our surveyor also noted road access to the property and that the loft had no fixed ladder or light.
Topping up over insulation in that state traps the dirt and leaves cold spots. The better fix was to take it all out, clean between the joists and start again.
What we did
- Free survey: measured the loft at 21m² and agreed a fixed written price, with a 10-year guarantee.
- Removed all the old loft insulation from the 21m² floor and bagged it up.
- Cleaned out the debris between the joists so the new insulation could sit flat.
- Laid new Knauf mineral wool to a total depth of 300mm.
- Took all the old insulation and waste away.
The result
The 21m² loft now has a clean, even 300mm of new mineral wool in place of the old, dirty insulation. The job was done in one day.
The work is covered by EcoTrust's 10-year guarantee.
Loft insulation in Salford: questions we get asked
Should old loft insulation be removed or topped up?
If the old insulation is clean and dry, a top-up can be fine. If it is dirty or full of debris, like this Worsley loft in Salford, it is better to take it out, clean between the joists and lay new mineral wool to 300mm so there are no cold spots.
How long does loft insulation removal and replacement take?
A small to average loft usually takes one day. This 21m² job in Salford was done in a day: the old insulation came out, the joists were cleaned and 300mm of Knauf mineral wool went down, with all waste taken away the same day.
Why clean between the joists before new insulation goes in?
Dust and debris left between the joists stop new rolls lying flat, which leaves gaps and cold spots. In this Worsley loft in Salford the team removed the old insulation, cleaned out between the joists and then laid 300mm of Knauf mineral wool so it sits evenly across the floor.
What guarantee comes with new loft insulation?
EcoTrust loft insulation comes with a 10-year guarantee. We use Knauf mineral wool to a total depth of 300mm, in line with current guidance, and you get a completion certificate once the job is done, as the homeowner in Worsley, Salford did.
Do you cover the rest of Salford and Greater Manchester?
Yes. We insulate lofts across Salford, including Walkden, Swinton, Eccles and Little Hulton, and across Greater Manchester and most of England from our Manchester and Sevenoaks offices. Every job starts with a free survey and a fixed written price. Book online or call 0800 870 8086.
Need loft insulation in Salford or nearby?
EcoTrust Roofing & Insulation Ltd surveys for free and gives you a written price before any work is booked. Rated 9.97 on Checkatrade, 4.9 on Trustpilot and 5.0 on Google, with 500+ spray foam removals and 35+ years of combined experience.
Get your free quote or call 0800 870 8086
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