- Area
- Merseyside
- Postcode district
- WA10
- Nation
- England
- Guide price
- From £240 inc VAT
- Survey
- Free for installation enquiries
What to know about heat pump radiator upgrades in St Helens
Homes around St Helens range from older terraces to newer estates, and each needs a different design. That is why we survey before we quote.
Radiator fitting in St Helens is scheduled with your heat pump installation so the system is drained only once. Many older houses in St Helens still have their original single-panel radiators, so the survey checks each one against the room it heats.
We size each radiator to your room-by-room heat loss so a heat pump can heat your home at a low, efficient flow temperature.
- Homes switching from a gas, oil or LPG boiler to a heat pump
- Rooms with little wall space, where a fan-assisted radiator fits better
- Extensions and loft conversions with large areas of glazing
What's included
- Balancing every radiator so each room heats evenly
- Supply and fitting of new radiators, valves and brackets
- Making good around brackets and pipe routes, with any decorating agreed in your quote
- A radiator schedule showing which radiators stay, which change and their outputs
- Draining, refilling, cleaning and inhibitor treatment of the heating system
In St Helens, bay-windowed front rooms are often the rooms that need a larger radiator when moving to a heat pump.
Grants and rules for heat pumps in England
In England the Boiler Upgrade Scheme gives £7,500 towards an air source heat pump (£9,000 if it replaces oil or LPG, from 21 July 2026 to 31 March 2027), and since 28 April 2026 a valid EPC is no longer needed. The grant is applied for by the MCS-certified installer and shown as a deduction on your St Helens quote.
There is no VAT on installing a heat pump anywhere in the UK until 31 March 2027. In England most houses can have an air source heat pump under permitted development, provided the unit meets the MCS noise and siting standards; the old 1 m boundary limit was removed on 29 May 2025. We flag listed buildings, flats and sensitive conservation-area positions at survey.
What to budget for heat pump radiator upgrades in St Helens
These are guide prices for Merseyside, installed and including VAT. Your final price is fixed in a written quote after the survey and depends on the heat loss of the house, the radiators that need changing and where the unit goes.
| Work | Guide price |
|---|---|
| Replacement radiator, sized for a heat pump (each, fitted) | £240–£440 |
| Upgrade of about 10 radiators | £1,950–£4,850 |
| Pipework upgrade (e.g. microbore to larger bore) | £1,450–£3,400 |
Installed, inc VAT. The survey lists which radiators need changing.
How long is the heating season in St Helens?
St Helens sees roughly 7 hours 29 minutes of daylight in December and 17 hours 02 minutes in June. With a longer heating season than the south, the gains from low flow temperatures and good controls add up over the year.
How installation works in St Helens
- Tell us about your home: postcode, property type and current heating.
- We book a survey in St Helens; the surveyor measures rooms, windows and radiators and looks at cylinder space.
- The design and quote arrive in writing, including radiator changes and the outdoor unit position.
- On installation days the old system is removed and the new one fitted and filled.
- We commission the heat pump, show you the controls and register the installation.
Heat pump radiator upgrades in St Helens: questions
Do I need new radiators for a heat pump in St Helens?
Often some, not all. Heat pumps run best at lower water temperatures, so rooms with small radiators may need larger ones. The survey of your St Helens home gives a room-by-room list.
How soon can you survey a home in St Helens?
Survey dates depend on how busy installers are in Merseyside. We offer the next available dates when you enquire and confirm them in writing.
Do you cover Prescot as well as St Helens?
Yes. We arrange surveys and installation in Prescot, which is about 3 miles south-west of St Helens, and across Merseyside.
Are fan-assisted radiators noisy?
Fan-assisted radiators make a low, steady fan sound when running at higher output, and many have quieter settings for bedrooms at night. They are useful where wall space is short, such as a kitchen with few clear walls. They need a small electrical supply, which we plan into the installation if you choose them.
Can radiators be changed without draining the whole system?
Radiator changes normally mean draining the heating system, which is why they are usually done as part of the heat pump installation. The system is then refilled, flushed, treated with inhibitor and balanced. Doing the radiators at the same time avoids draining twice and means the new radiators are commissioned with the heat pump.