Costs
How Much Does Loft Insulation Cost?
Loft insulation cost depends on more than floor area. Rather than quote a headline figure that may not fit your loft, here is an honest breakdown of what drives the price — and how to get an accurate written quotation.
What affects the price
- Loft area
- The bigger the floor area, the more material and labour required.
- Access
- A cramped hatch, awkward stairs or a low roof slows work and can affect price.
- Existing insulation
- Whether there is anything to work over, and its condition.
- Removal & cleaning
- Taking out old, wet or contaminated material and clearing debris adds cost.
- Material & build-up
- Mineral wool, sheep wool, recycled plastic or multifoil, and the depth used.
- Ventilation
- Any work to keep the eaves clear or improve airflow.
- Boarding
- Raised boarding for storage is priced separately from insulation.
- Water tanks & wiring
- Insulating around tanks and keeping clearances around fittings.
- Moisture & contamination
- Damp, mould or rodent contamination changes the scope.
- Disposal
- Responsible disposal of removed material.
- Location & parking
- Access and parking can be a practical factor on some streets.
- Minimum charge
- Very small jobs may be subject to a minimum charge.
Why we don’t publish a single price
Prices depend on the loft area, access, existing insulation, removal, cleaning, material, build-up, ventilation, boarding, water tanks, wiring, moisture, contamination, disposal, location, parking and any minimum charge. An assessment gives you an accurate written quotation. We would rather give you an accurate figure for your loft than a headline price that turns out to be wrong. Request a free assessment and you’ll receive a written quotation before any work is agreed.
Get an accurate quotation
Tell us about your loft and we’ll arrange the right next step.
Questions about loft insulation cost
Why don't you show prices on the website?
Because no two lofts are the same. Loft size, access, the condition of the existing insulation, the material and any removal, boarding or ventilation work all change the price. A headline figure would often be wrong, so we give you an accurate written quotation for your loft instead.
Is the loft assessment free?
Yes. The assessment is free and there is no obligation. You receive a written recommendation and quotation before any work is agreed.
What does the written quotation include?
It sets out the scope of the work, the materials and depth, the price and any guarantee, so you can see exactly what you are paying for before anything goes ahead.
Is topping up cheaper than starting from scratch?
It often is, because sound existing insulation can stay in place and less new material is needed. If the old insulation is damp, contaminated or badly compressed, removing it first is the better option, and your quotation will explain why.
Does loft boarding cost extra?
Yes. Raised loft boarding for storage is priced separately from insulation, so you can decide whether you need it.
Is there a minimum charge for small jobs?
Very small jobs may be subject to a minimum charge. If it applies to your loft, it will be clear in your written quotation.