Home/Electrician/Guides/Electric Storage Heater UK 2026 — Cost & High Heat Retention Guide

Install a storage heater.

High-heat-retention storage heater — for Economy 7 tariffs, fitted by a Part P electrician.

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Four moves that separate a smooth job from a nightmare.

Check NICEIC or NAPIT registration.

Part P electrical work must be certified by a registered electrician. NICEIC and NAPIT are the two big ones — verify online before they start.

Demand the EIC certificate.

Any new circuit or consumer unit change needs an Electrical Installation Certificate (EIC). Without it, you can't sell the house cleanly.

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An Electrical Installation Condition Report on a house you're buying flags hidden rewire jobs. A C1 or C2 finding is a £2k–£8k negotiation lever.

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Honest electricians lift a few floorboards before quoting a rewire. Anyone quoting a flat rate over the phone is guessing.

Costs & timeline

Know what it costs. Know when it ends.

Indicative UK ranges and what affects price.

Cost range

By job type

Inc. VAT · 2026
Source: NMT quotes
Hourly call-out rate
£50–£100/hr
Day rate
£250–£450/day
New socket or light fitting
£80–£200
Consumer unit upgradeInc. RCDs + cert
£600–£1.5k
EICR full report3-bed house
£150–£400
Full house rewire3-bed, plaster making-good extra
£3.5k–£8.5k
!

Quote spread is typically ± 18% — always get 3 quotes.

At a glance

The Electrician briefing.

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Electric Storage Heater UK 2026 — Cost & High Heat Retention Guide infographic
Video guide

Electrician explained

Modern high heat retention (HHR) electric storage heaters replace 1980s night storage. Better insulation, smart controls. Expect to pay £500–£3,500 per heater for UK HHR install.

What Does the Work Involve?

NICEIC electrician removes old NSH (Notifiable Non-Licensed Work if asbestos cement liner). Installs HHR unit on dedicated circuit. Smart controls. Economy 7 or Economy 10 tariff required for off-peak charging. Building Notice if structural.

Typical Costs

ItemLow (£)High (£)Notes
Single HHR heater install5001,800Per room
Premium smart HHR1,2003,500Wi-Fi/app
Whole flat install (4 heaters)2,5008,000Typical
Whole house install (6 heaters)4,00015,000Larger
Asbestos NSH removal200800If asbestos liner
Economy 7 tariff switch00Free
Annual running cost8002,500vs £1,000-£3,000 gas

UK Regulations

BS 7671 Part P certification. PAS 2035 if grant-funded (ECO4). Asbestos awareness for old NSH removal. Building Regs Part L for new build alternative to gas.

Frequently Asked Questions

When are storage heaters right?

Off-gas-grid properties, flats, retrofit where heat pump impractical. HHR much better than old NSH.

HHR vs old NSH?

HHR: 24-hour heat retention, smart controls. NSH: 12-hour, releases all morning. 30-40% efficiency gain.

Best UK brands?

Dimplex Quantum (premium), Elnur Ecombi HHR, Creda. Heatworks UK installer network.

Compared to heat pump?

Heat pump more efficient but higher install. HHR cheaper install £4-15k vs heat pump £10-22k.

Old NSH asbestos?

1960s-80s NSH commonly had asbestos cement back. Specialist removal £200-£800.

Economy 7 essential?

Yes — charges off-peak 7p/kWh vs peak 30p+. Without: defeats purpose.

This guide was written with AI assistance and is intended for general information only. Prices are estimates based on UK averages and may vary by region. Always get at least three quotes and consult a qualified professional before starting any work.

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