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Install a zoned heating system.
Upstairs/downstairs or per-room zoning — multi-zone valves, controls and a balancing visit.
✓ Updated May 2026✓ Free quotes✓ Vetted pros
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Costs, timelines, pitfalls and the right questions to ask before any central heating starts on zoned Heating System.
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Top tips
Hiring a central heating, without the regret.
Four moves that separate a smooth job from a nightmare.
System never balanced properly
Zoning amplifies any unbalance. Have the system balanced before adding zones.
Tiny zones short-cycling boiler
Heating just one radiator causes boiler to short-cycle. Group small rooms.
Smart TRV battery life
18–24 months battery life on smart TRVs. Multiple devices = multiple battery changes.
Wireless interference
Some smart TRVs use Z-Wave or Zigbee with limited range. Add repeater if needed.
Costs & timeline
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Indicative UK ranges and what affects price.
Cost range
By job type
Inc. VAT · 2026
Source: NMT quotes
Source: NMT quotes
Smart TRV (per radiator)Tado, Drayton Wiser, Honeywell
£60–£180
Whole-house smart TRV kit (8 rads)Plus thermostat
£500–£1.4k
Motorised zone valve installPer zone
£250–£500
2-zone (upstairs/downstairs) setupPlus 2 thermostats
£400–£800
Honeywell Evohome systemUp to 12 zones
£800–£2.5k
Hive Multi-Zone3–6 zones
£400–£1.2k
!
Quote spread is typically ± 18% — always get 3 quotes.
At a glance
InfographicThe Central Heating briefing.
Infographic
Central Heating quick-view
Zoned heating heats only the rooms you're using — bedroom warm at night, living room during day. Cuts UK heating bills 15–30%. Expect to pay £400–£2,500 for a UK zoning system depending on number of zones and control type.
What Does the Work Involve?
Two approaches. Smart TRV zoning: each radiator has a smart thermostatic valve (Tado, Drayton Wiser, Honeywell Evohome) controlled by app. Easy retrofit. Motorised zone valves: traditional approach — heating circuits split with separate motorised valves to upstairs/downstairs, each on a separate thermostat. More invasive install but most reliable.
Typical Costs
| Item | Low (£) | High (£) | Notes |
|---|---|---|---|
| Smart TRV (per radiator) | 60 | 180 | Tado, Drayton Wiser, Honeywell |
| Whole-house smart TRV kit (8 rads) | 500 | 1,400 | Plus thermostat |
| Motorised zone valve install | 250 | 500 | Per zone |
| 2-zone (upstairs/downstairs) setup | 400 | 800 | Plus 2 thermostats |
| Honeywell Evohome system | 800 | 2,500 | Up to 12 zones |
| Hive Multi-Zone | 400 | 1,200 | 3–6 zones |
| Whole-house Drayton Wiser | 350 | 900 | Affordable zoning |
How Long Does It Take?
Smart TRV install: 30 mins per radiator. Motorised valve install: 4–6 hours for 2 zones. Honeywell Evohome full setup: 4–6 hours plus configuration.
DIY or Professional?
Smart TRV install is DIY (just unscrew old valve top, screw on smart head). Motorised zone valves need plumbing/heating engineer.
Choosing the Right Tradesperson
Heating engineer for motorised valves. Smart TRV install is plug-and-play — owner can install. For Honeywell Evohome, accredited installer ensures setup is optimised.
UK Regulations
No specific Building Regs. Boiler Plus requires a high-efficiency upgrade — multi-zone is one accepted option (along with smart thermostat, weather comp, load comp).
Common Problems
- System never balanced properly: Zoning amplifies any unbalance. Have the system balanced before adding zones.
- Tiny zones short-cycling boiler: Heating just one radiator causes boiler to short-cycle. Group small rooms.
- Smart TRV battery life: 18–24 months battery life on smart TRVs. Multiple devices = multiple battery changes.
- Wireless interference: Some smart TRVs use Z-Wave or Zigbee with limited range. Add repeater if needed.
Frequently Asked Questions
Smart TRVs or motorised zones?
Smart TRVs: easy retrofit, per-room control, slightly higher running. Motorised zones: traditional, more reliable, less granular (typically upstairs/downstairs). Smart TRVs are the modern UK choice.
How much will I save?
15–30% on heating bills typically. Saves more for households with varied schedules and partial use of rooms.
Best zoning brand?
Honeywell Evohome: premium, up to 12 zones. Tado: clean app, good integration. Drayton Wiser: best value. Hive: good UK customer support.
Will my old boiler work with zoning?
Yes — zoning is independent of boiler. Just verify the boiler has space for an additional thermostat input (most do).
Can I have UFH and radiator zones together?
Yes — common in modern UK homes. UFH downstairs (one zone), radiator zones upstairs. Different thermostats/control systems for each.
Does zoning work with heat pumps?
Yes — but heat pumps prefer steady operation. Excessive zoning can reduce heat pump efficiency. Best to consult MCS installer.
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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