In short: HMO energy upgrades improve the energy performance certificate (EPC) rating and cut running costs: loft and wall insulation, heating and controls, glazing, ventilation and lighting. We carry this out across Vale of Glamorgan, priced against the HMO rules for Wales and the council’s own standards.
- Nation
- Wales
- Pricing region
- Wales
- Postcode areas
- CF
- Main towns
- Barry, Penarth, Llantwit Major
What do EPC and energy upgrades in Vale of Glamorgan involve?
- Ventilation to control condensation
- Heating, hot water and smart controls
- Double or secondary glazing
- LED lighting
- A post-works EPC through your assessor
- Loft and roof insulation
Which rules apply in Vale of Glamorgan?
- Rented homes must meet at least EPC E. Whether the planned EPC C standard will apply in Wales has not yet been confirmed.
- Councils assess hazards, including damp and mould, under the HHSRS, alongside the fitness for human habitation rules for occupation contracts.
- Building regulations cover structural work, partitions, drainage, fire-resisting construction and electrics; confirm with building control whether the conversion is a material change of use.
Welsh councils set their own HMO standards and may run additional licensing. In Wales, changing a house to a C4 HMO always needs planning permission, so check planning first.
How much do EPC and energy upgrades cost in Vale of Glamorgan?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Loft insulation, whole house | £650 – £1,250 | £610 – £1,200 | house |
| Internal wall insulation | £60 – £100 | £60 – £90 | m² of wall |
Typical time on site: 2–15 working days. For a figure for your house, try the guide-price tool.
EPC and energy upgrades by town in Vale of Glamorgan
Questions about EPC and energy upgrades in Vale of Glamorgan
Will insulation cause condensation?
Not if it is designed with ventilation and vapour control. We always pair insulation with suitable ventilation.
Are there grants?
Some schemes support landlords. Eligibility changes, so check the current government and energy company schemes for your nation.
Do you carry out EPC and energy upgrades across Vale of Glamorgan?
Yes, across the whole of Vale of Glamorgan, including Barry, Penarth, Llantwit Major.
Who licenses HMOs in Vale of Glamorgan?
Vale of Glamorgan council licenses HMOs in its area. Landlords must also register with Rent Smart Wales.
Other HMO services in Vale of Glamorgan
- Damp, mould and HHSRS repairs in Vale of Glamorgan
- Full HMO refurbishment in Vale of Glamorgan
- Commercial and above-shop to HMO in Vale of Glamorgan
- Rewires and EICR remedials in Vale of Glamorgan
- Professional and co-living HMO refurbs in Vale of Glamorgan
- Loft conversions for extra rooms in Vale of Glamorgan
- Fire alarm and detection systems in Vale of Glamorgan
- Ensuite installation in Vale of Glamorgan