- Nation
- England
- Pricing region
- East of England
- Postcode areas
- SG, AL, WD, HP
- Main towns
- Watford, Hemel Hempstead, Stevenage, St Albans, Welwyn Garden City
What do EPC and energy upgrades in Hertfordshire involve?
- LED lighting
- Heating, hot water and smart controls
- Review of the EPC recommendations
- Internal or external wall insulation
- Double or secondary glazing
- A post-works EPC through your assessor
Which rules apply in Hertfordshire?
- Rented homes must currently meet at least EPC E, with a £3,500 spending cap. The government plans EPC C by October 2030, subject to legislation.
- Councils can fine up to £7,000 where a Category 1 hazard is not removed when it reasonably could have been.
- Building regulations cover structural changes, new partitions, ensuite drainage, fire-resisting construction and notifiable electrical work.
- A conversion can be a material change of use under the building regulations, so confirm with building control before work starts.
Councils in England can add additional licensing and Article 4 directions on top of the national rules. Check the council’s website for the exact address before you buy or start work.
How much do EPC and energy upgrades cost in Hertfordshire?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Loft insulation, whole house | £650 – £1,250 | £690 – £1,300 | house |
| Internal wall insulation | £60 – £100 | £60 – £110 | 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 Hertfordshire
- Watford
- Hemel Hempstead
- Stevenage
- St Albans
- Welwyn Garden City
- Cheshunt
- Hatfield
- Borehamwood
- Hitchin
- Hoddesdon
- Letchworth Garden City
- North Watford
- Harpenden
- Bushey
- Hertford
- Rickmansworth
- Potters Bar
- Berkhamsted
Questions about EPC and energy upgrades in Hertfordshire
Which upgrade gives the best EPC improvement?
It depends on the house. Loft insulation and heating controls are often the cheapest gains; wall insulation and heating systems make larger differences.
Will insulation cause condensation?
Not if it is designed with ventilation and vapour control. We always pair insulation with suitable ventilation.
Do you carry out EPC and energy upgrades across Hertfordshire?
Yes, across the whole of Hertfordshire, including Watford, Hemel Hempstead, Stevenage.
Who licenses HMOs in Hertfordshire?
HMOs in Hertfordshire are licensed by the local council for the address. Where an area has several councils, each runs its own licensing and planning policies.
Other HMO services in Hertfordshire
- Damp, mould and HHSRS repairs in Hertfordshire
- Full HMO refurbishment in Hertfordshire
- Commercial and above-shop to HMO in Hertfordshire
- Rewires and EICR remedials in Hertfordshire
- Professional and co-living HMO refurbs in Hertfordshire
- Loft conversions for extra rooms in Hertfordshire
- Communal kitchen refits in Hertfordshire
- Large HMO conversions (7+ sharers) in Hertfordshire