Loft insulation for landlords and rented homes

Private landlords in England and Wales have to meet a minimum energy rating, and that minimum is going up. Loft insulation is one of the most common measures on an EPC’s list of recommendations.

At a glance
Current minimum (private rented)EPC E, unless exempt
Planned future minimumEPC C by 1 October 2030, subject to Parliament
Applies toPrivate rented homes in England and Wales

The current rule

Under the Minimum Energy Efficiency Standard (MEES), most privately rented homes in England and Wales must have an Energy Performance Certificate rating of at least E before they can be let, unless a valid exemption is registered. This has applied to new and existing tenancies since 2020.

The rule that’s coming

In January 2026, the government confirmed plans to raise the minimum to EPC C for all tenancies by 1 October 2030, with a cap on what a landlord is required to spend per property and a set of exemptions. The new regulations still need Parliament’s approval, and the details, including how the rating is measured, are set out on GOV.UK. Check the current rules before planning work.

Where loft insulation fits in

An EPC lists recommended improvements. Topping up thin loft insulation is a common one: it is usually less disruptive than most other measures and can be done between tenancies, or with tenants in place. If your EPC is old, a new assessment after the work will show the effect.

Practical points

  • Give tenants notice and agree access for us
  • Ask for paperwork describing the work, so the next EPC assessor can record it
  • Keep receipts, which may be needed if you apply for an exemption on cost grounds
  • In a flat, check the freeholder’s permission first: see top-floor flats

This is general information, not legal advice. For your own situation, see GOV.UK or a qualified adviser.

Common questions

Does loft insulation improve an EPC rating?
Adding insulation where there was little or none usually improves the rating. How much depends on the house. A new EPC after the work will show the change.
Can tenants stay in while the loft is insulated?
Usually, yes. The work is in the loft and normally takes a day or so. Agree a time with your tenants.

Ready for a free loft insulation quote?

Tell us about your home and we’ll give you a written quotation before any work begins.

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