Electric shower installation is one of the most common electrical jobs we carry out across Hertfordshire. Whether you are replacing an old shower unit, upgrading to a higher power model, or installing a shower for the first time, this guide covers everything you need to know.
Why Electric Showers Are Popular in Hertfordshire Homes
Electric showers are the most popular shower type in the UK for good reason. Unlike mixer showers, they heat water on demand directly from the cold water supply — so you never run out of hot water, even in a busy household. They are also more energy efficient than heating a full tank of water.
For Hertfordshire homeowners, electric showers are particularly practical. Many properties in the county — especially the older Victorian and Edwardian homes in towns like Hitchin, Hertford, and Berkhamsted — have combi boilers or older hot water systems that can struggle to supply multiple outlets simultaneously. An electric shower solves this problem completely.
Electric Shower Installation Costs in Hertfordshire 2025
| Installation Type | Typical Cost |
|---|---|
| Basic 7.5kW shower (supply & fit) | £350–£500 |
| 8.5kW shower (supply & fit) | £400–£600 |
| 10.5kW shower (supply & fit) | £450–£700 |
| New dedicated circuit (if required) | £150–£300 |
| Consumer unit assessment | Included in quote |
| Building regulations certificate | Included |
Prices are indicative for Hertfordshire 2025. Final cost depends on property type, existing wiring, and shower model chosen.
What Power Rating Do I Need?
Electric showers are rated by power output, typically between 7.5kW and 10.5kW. The higher the power rating, the better the flow rate and temperature — especially in winter when the incoming cold water is colder.
Suitable for most homes. Good flow rate, adequate temperature. Requires a 6mm cable and 40A MCB.
Better flow and temperature than 7.5kW. A good all-round choice for most Hertfordshire homes.
Best flow rate and temperature. Ideal for larger households or where maximum performance is needed. Requires 10mm cable and 45A MCB.
Do I Need a New Circuit?
Yes — electric showers must have a dedicated circuit from your consumer unit. This is a legal requirement under BS 7671 (the UK Wiring Regulations). The circuit must be correctly sized for the shower's power rating, with the appropriate cable size and MCB rating.
If you are replacing an existing electric shower, the existing circuit may be suitable — but our electricians will always check it before connecting a new unit. If you are installing a shower for the first time, a new circuit will need to be run from your consumer unit.
Electric Shower Installation by Area: Hertfordshire
Electric Shower Installation in St Albans
St Albans has a wide mix of Victorian, Edwardian, and modern properties. We cover all AL1, AL2, and AL3 postcodes for electric shower installation.
Electric Shower Installation in Watford
Watford's large residential areas include many 1930s and post-war properties. We cover all WD17, WD18, and WD24 postcodes.
Electric Shower Installation in Hemel Hempstead
Hemel Hempstead has a large number of new town properties alongside older homes. We cover all HP1, HP2, and HP3 postcodes.
Electric Shower Installation in Stevenage
Stevenage's 1950s and 1960s new town properties often benefit from electrical upgrades when installing a new shower. We cover all SG1 and SG2 postcodes.
Electric Shower Installation in Hitchin
Hitchin is a historic market town with many period properties. We cover all SG4 and SG5 postcodes for electric shower installation.
Electric Shower Installation in Hertford
Hertford is the county town with a rich mix of historic and modern properties. We cover all SG13 and SG14 postcodes.
Electric Shower Installation in Letchworth
Letchworth Garden City's Arts and Crafts homes from the early 20th century require careful electrical assessment. We cover all SG6 postcodes.
Electric Shower Installation in Berkhamsted
Berkhamsted is a historic market town in the Chiltern Hills. We cover all HP4 postcodes for electric shower installation.
Electric Shower Installation in Harpenden
Harpenden is an affluent commuter town with a mix of Victorian, Edwardian, and modern properties. We cover all AL5 postcodes.
Electric Shower Installation in Welwyn Garden City
Welwyn Garden City's inter-war properties have older electrical installations. We cover all AL7 and AL8 postcodes.
Electric Shower Installation in Hatfield
Hatfield has a mix of post-war new town properties and older homes. We cover all AL9 and AL10 postcodes.
Electric Shower Installation in Baldock
Baldock is one of Hertfordshire's oldest towns. We cover all SG7 postcodes for electric shower installation.
Top Electric Shower Brands We Install
Triton
The UK's best-selling shower brand. Reliable, affordable, and widely available.
Mira
Premium quality with excellent build and performance. Great warranty support.
Aqualisa
Innovative design and technology. Popular in higher-end Hertfordshire homes.
Bristan
Good value with a wide range of styles and power ratings.
Gainsborough
Budget-friendly option with solid reliability for rental properties.
Redring
Commercial-grade reliability. Popular for landlord properties.
Book Electric Shower Installation in Hertfordshire
We cover all of Hertfordshire for electric shower installation — St Albans, Watford, Stevenage, Hitchin, Hertford, Letchworth, Berkhamsted, Harpenden, Welwyn Garden City, Hatfield, Ware, Hoddesdon, Cheshunt, Potters Bar, Borehamwood, Radlett, Royston, and Baldock. Call us for a free quote.
Call 07853 318489 Now