Looking for Grant heat pump installers in Berkshire? You are in the right place.
Infinity Energy Services is an MCS-certified renewable energy installer with more than 6,500 installations completed since 2011.
We are an accredited Grant G1 Installer, which is what unlocks the Grant Aerona 7-year manufacturer guarantee on every system we fit.
We design and install the Grant Aerona 290 air source heat pump range (4 kW to 15.5 kW) across the whole of Berkshire, apply the £7,500 Boiler Upgrade Scheme grant on your behalf, and deduct it directly from your invoice.
This page is a deep dive into one product family: the Grant Aerona 290, our value recommendation when you want a strong-performing, MCS-certified heat pump at a more accessible price point than the Vaillant aroTHERM plus.
Read on for honest cost figures, real running-cost arithmetic, the full Aerona 290 spec table, and a worked oil-to-heat-pump example for a West Berkshire home.
If you would prefer to skip ahead, click the button below, or call us on 0800 909 8882 for a tailored quotation.
– Last updated 12 May 2026 –
TABLE OF CONTENTS
• Why Choose Infinity Energy Services for Grant in Berkshire
• The Grant Aerona 290 – Our Value Recommendation
• Grant Aerona 290 Range & Specifications
• How Much Does a Grant Aerona 290 Cost in Berkshire?
• BUS Grant & the £9,000 Uplift for Oil and LPG Homes
• Worked Example: Switching from Oil in West Berkshire
• Our Installation Process
• Areas We Serve in Berkshire
• May 2026 Update
• Frequently Asked Questions
• Get a Free Grant Heat Pump Quote
Why Choose Infinity Energy Services for
Grant Heat Pumps in Berkshire
Berkshire homeowners choose Infinity Energy Services for their Grant Aerona 290 installation because of what it gets you that other installers cannot:
- Accredited Grant G1 Installer. The 7-year manufacturer guarantee on every Grant Aerona heat pump is unlocked only when the system is fitted by a G1 Installer with a Grant Mag One DUO magnetic filter. Both come as standard with us.
- MCS-certified for air source heat pump installations. We are registered to apply for the £7,500 Boiler Upgrade Scheme (or £9,000 for oil and LPG homes from July 2026) on your behalf.
- Founded in 2011 by Daniel Hanslip; one of the longest-established renewable energy installers in the south of England, with more than 6,500 installations completed.
- Best Regional Installer at the Energy Efficiency Awards in 2023, 2024, and 2026.
- Members of the Renewable Energy Consumer Code (RECC), providing enhanced consumer protection including insurance-backed deposit protection and workmanship guarantees.
- Whole-home capability: your Grant heat pump integrates with our solar PV, battery storage such as Tesla Powerwall 3 and Sigenergy SigenStor, and EV charger installations from a single, accountable contractor.
We are independent of any one manufacturer. We recommend Grant where Grant is right, Vaillant where a Vaillant heat pump installation is right for your Berkshire home, and we will tell you which is which after the heat-loss survey, not before.
The Grant Aerona 290 – Our Value Recommendation for Berkshire Homes
The Grant Aerona 290 is a 5th-generation R290 air source heat pump, manufactured by Grant Engineering (UK) Ltd, available in five outputs from 4 kW to 15.5 kW. It is the unit we recommend for Berkshire homeowners who want a strong-performing, MCS-certified heat pump at a more accessible price point than the Vaillant aroTHERM plus.
The 290 in the name is the refrigerant. R290 is propane: a natural refrigerant with a Global Warming Potential (GWP) of 3, against 675 for the older R32 chemistry used in the previous-generation Aerona³. R290 also performs better at low temperatures, which matters less in Berkshire than it does in the Highlands but still feeds into a higher Seasonal Coefficient of Performance (SCOP) when the weather turns.
Real-world Aerona 290 performance
On the Grant datasheet, the Aerona 290 range posts a SCOP of 4.74 to 5.08 at average climate conditions and a 35 °C flow temperature. That means for every unit of electricity it draws, it delivers between 4.74 and 5.08 units of heat into the house.
Even at a 55 °C flow, the COP under BS EN 14511 stays in the 2.87 to 3.22 range, which is what allows the Aerona 290 to work with existing radiators in a lot of Berkshire homes without a wholesale upgrade.
What you actually notice: the Aerona 290’s modern matt-black casing is meaningfully better-looking than older heat pumps. Sound power sits at 48 to 54 dB(A) under BS EN 12102-1 (Quiet Mark accredited across the range), and the unit handles ambient air temperatures from -25 °C to +35 °C. Berkshire’s coldest winter days rarely fall below -5 °C.
Honest trade-off: the Aerona 290’s maximum flow temperature is 75 °C on paper, and we run it well below that for efficiency. If your radiators are oversized and your insulation is good, the Grant works beautifully. If your home is large, period, and difficult to insulate, the Vaillant aroTHERM plus, with its higher real-world flow temperature ceiling, is sometimes the better fit. We will tell you which after the survey.
Grant Aerona 290 Range – Specifications and Which Model Suits Your Home
The Aerona 290 range comes in five sizes. The right size for your home depends on the heat-loss calculation we carry out at survey, not on bedroom count alone, but the table below maps each model to the typical Berkshire property archetype it was designed for.
MODEL | OUTPUT | EFFICIENCY COP | EFFICIENCY SCOP | SOUND POWER | TYPICALLY SUITABLE FOR |
HPR2904 | 4 kW | 4.99 | 5.00 | 48 dB(A) | 2-bed flat or small, well-insulated 2-bed semi |
HPR29065 | 6.5 kW | 4.95 | 5.08 | 52 dB(A) | Modern 3-bed semi or smaller 3-bed detached |
HPR2909 | 9 kW | 4.93 | 4.74 | 54 dB(A) | Larger 3-bed detached or modest 4-bed |
HPR29012 | 12 kW | 4.81 | 4.74 | 52 dB(A) | 4-bed detached, including 1980s and 1990s housing stock |
HPR290155 | 15.5 kW | 4.72 | 4.56 | 53 dB(A) | Larger homes; rural properties with higher heat demand |
All five units run on a single-phase 230 V supply at 50 Hz, are A+++ rated for ErP space heating at 35 °C flow, and carry the Grant 7-year guarantee when fitted by an accredited G1 Installer.
How Much Does a Grant Aerona 290 Cost
in Berkshire in 2026?
A typical Grant Aerona 290 installation in Berkshire costs £8,500 to £18,500 before grants, fully fitted, and £1,000 to £11,000 net of the £7,500 Boiler Upgrade Scheme grant.
From July 2026, oil and LPG-heated homes will qualify for an uplifted £9,000 grant, taking the typical net cost lower still in the smallest installations once 0% VAT is also applied.
The figures below are illustrative ranges, not quotes. Final price depends on heat-loss results, radiator and pipework upgrades, hot water cylinder specification, and whether building work (such as condensate drainage) is required.
Every Infinity Energy Services quote is fixed in writing before any work starts.
PROPERTY TYPE | AERONA 290 MODEL | HEADLINE COST (BEFORE GRANT) | NET COST WITH £7,500 GRANT |
2-bed flat / small house | HPR2904 (4 kW) | £8,500 – £10,500 | £1,000 – £3,000 |
3-bed semi | HPR29065 (6.5 kW) | £10,500 – £12,500 | £3,000 – £5,000 |
Larger 3-bed / 4-bed | HPR2909 (9 kW) | £12,000 – £14,000 | £4,500 – £6,500 |
4-bed detached | HPR29012 (12 kW) | £13,000 – £15,500 | £5,500 – £8,000 |
Larger / period property | HPR290155 (15.5 kW) | £14,500 – £18,500 | £7,000 – £11,000 |
Heat pump cost vs new oil or gas boiler
A new oil-fired boiler typically costs £3,500 to £5,500 fitted in 2026, and a new gas boiler £3,000 to £5,000. After the £7,500 Boiler Upgrade Scheme grant, a small Grant Aerona 290 can land below the cost of a new oil boiler. Add 0% VAT on the heat pump (in place until at least 31 March 2027) and the cash gap closes for most Berkshire homes.
Aerona 290 running costs in 2026
Honest running cost figures, using the Q2 2026 Ofgem energy price cap (1 April to 30 June 2026): gas at 5.74p/kWh, electricity at 24.67p/kWh:
- Grant Aerona 290 at SCOP 3.5 (achievable with our standard low-flow design): 24.67p ÷ 3.5 = 7.0p per kWh of useful heat.
- Grant Aerona 290 at SCOP 3.2 (typical retrofit): 24.67p ÷ 3.2 = 7.7p per kWh.
- A-rated gas boiler at 88% efficiency: 5.74p ÷ 0.88 = 6.5p per kWh.
- Heating oil at 75p/litre and 85% boiler efficiency: roughly 7.5p per kWh.
- Removing your gas meter saves around £105 a year in standing charges.
In a well-designed Berkshire home, a Grant Aerona 290’s running cost is now broadly comparable with mains gas, slightly cheaper than oil, and significantly cheaper than LPG. Pair it with solar and a battery and the gap widens further.
The Boiler Upgrade Scheme and the £9,000 Uplift for Oil and LPG Homes
The Boiler Upgrade Scheme (BUS) is the UK government’s flagship heat pump grant in England and Wales, administered by Ofgem.
It currently provides a £7,500 grant towards a Grant Aerona 290 air source heat pump installation. From July 2026, this rises to £9,000 for properties currently heated by oil or LPG, the highest grant level in the scheme’s history.
As an MCS-certified installer, Infinity Energy Services applies for the BUS grant on your behalf, deducts it from your invoice before you pay, and Ofgem reimburses us directly. There is no separate paperwork.
What changed on 28 April 2026
Two material amendments landed under the Boiler Upgrade Scheme (Amendment) Regulations 2026 (SI 2026/390):
- EPC requirement removed. You no longer need a valid EPC, or to clear outstanding insulation recommendations, before applying. This change alone has unlocked the scheme for thousands of homes that were previously blocked behind insulation surveys.
- Scheme extended to 2030. The BUS now runs until at least 31 March 2030, with £1.5 billion of budget allocated for 2026 to 2028.
The £9,000 uplift for oil and LPG homes from July 2026
On 21 April 2026, the Department for Energy Security and Net Zero (DESNZ) announced a £1,500 uplift to the BUS grant for properties currently heated by oil or LPG, taking the total to £9,000. The uplift is expected to open for applications in July 2026 and runs until 31 March 2027.
Berkshire homeowners are particularly well placed to benefit. West Berkshire alone contains a substantial number of off-gas-grid villages running on oil or LPG. Lambourn, Hermitage, Cold Ash, Bucklebury, Yattendon, Brimpton, Chieveley, and Beedon are exactly where switching from an old oil boiler to a Grant Aerona 290 now combines the largest grant in the scheme’s history with the largest running-cost saving.
Important: until DESNZ publishes the formal grant change notice, all live applications continue at £7,500. We can start your survey now and time the application for the higher grant the moment it goes live. Speak to us before booking. There is no point applying at £7,500 in June if you can apply at £9,000 in July.
Worked Example: Switching from Oil to a Grant Aerona 290 in West Berkshire
To make the numbers concrete, here is a worked example for a 4-bed 1980s detached house in West Berkshire, currently heated by an ageing oil boiler. Heat-loss calculation: roughly 14 kW. Annual oil consumption: roughly 2,800 litres.
The homeowner specifies the Grant Aerona 290 12 kW model (HPR29012). They book the survey in May 2026 and time the BUS grant application for July, when the £9,000 oil and LPG uplift opens. The figures below are illustrative, not a quote.
ITEM | BEFORE (OIL BOILER) | AFTER (GRANT AERONA 290) |
Heat source | 1990s oil-fired boiler | Grant Aerona 290 12 kW (HPR29012) |
Headline installation cost | n/a (existing system) | £14,500 |
BUS grant deducted | n/a | -£9,000 (oil/LPG uplift, from July 2026) |
Net cost to homeowner | n/a | £5,500 |
Annual fuel use | 2,800 litres of heating oil | Grid electricity at SCOP 3.2 |
Annual fuel cost | £2,100 (at 75p/litre) | £1,500 (at 24.67p/kWh, Q2 2026 cap) |
Annual running-cost saving | — | Roughly £600 per year before solar |
Exposure to oil price spikes | Direct, full | Removed entirely |
The headline saving is £600 a year, but that understates the real benefit. The bigger structural change is leaving global oil prices behind. Heating oil is exposed to events in the Strait of Hormuz, OPEC+ decisions, and refinery shutdowns; UK grid electricity is increasingly covered by long-term contracts for renewable generation. Add a 4 kW solar array and a battery, and the annual electricity bill on the heat pump can fall by another 30 to 50 per cent.
Note: the £9,000 uplift is announced but not yet live. All current applications are processed at £7,500. We will time your application for July 2026 to capture the higher grant.
Our Grant Heat Pump Installation Process in Berkshire
From first enquiry to commissioning, our process is structured to remove uncertainty.
- FREE REMOTE QUOTE: Share your property details and we will provide an indicative cost within 24 hours.
- ON-SITE SURVEY AND HEAT-LOSS CALCULATION: A full MCS-compliant room-by-room heat-loss assessment, typically 60 to 90 minutes.
- DETAILED SYSTEM DESIGN: Grant Aerona 290 model selection, hot water cylinder, radiator schedule, pipework route, controls strategy.
- FIXED-PRICE QUOTE: Grant and 0% VAT applied; nothing to pay upfront beyond a small deposit.
- BUS APPLICATION SUBMITTED: We handle this with Ofgem on your behalf, timed to capture the £9,000 uplift if you are an oil or LPG household applying from July 2026.
- INSTALLATION: Typically 2 to 5 days; minimal disruption to your home.
- G1 COMMISSIONING AND HANDOVER: Walkthrough of the controls, performance check, and a complete document pack. The Grant 7-year guarantee is registered through our G1 Installer portal at handover.
- AFTERCARE: Service plans available; insurance-backed workmanship guarantee through RECC.
Total time from accepted quote to commissioned Grant Aerona 290 in Berkshire is typically four to six weeks, depending on the season.
Where in Berkshire We Install Grant Heat Pumps
We install Grant Aerona 290 heat pumps for homeowners across the whole of Berkshire from our Hampshire headquarters. We are not based in Berkshire ourselves; what we offer is depth of Berkshire knowledge, accredited Grant G1 engineering, and a survey response time short enough to commission your system before the next heating season.
Towns and areas we serve in Berkshire include:
- Reading
- Slough
- Bracknell
- Maidenhead
- Wokingham
- Newbury
- Woodley
- Windsor
- Thatcham
- Sandhurst
- Crowthorne
- Ascot
- Twyford
- Wraysbury
- Sunninghill
- Burghfield Common
Plus all the surrounding villages, including Pangbourne, Hungerford, Theale, Lambourn, Bucklebury, Hermitage, Cold Ash, Yattendon, Brimpton, Chieveley, and Beedon.
The off-gas-grid villages of West Berkshire, in particular, are where the £9,000 BUS grant from July 2026 lands hardest.
Wherever you are in Berkshire, we cover you.
May 2026 Update
Here is your latest monthly news regarding Grant heat pumps in Berkshire:
- £9,000 BUS grant for oil and LPG homes is expected to open for applications in July 2026. If your property is on oil or LPG, book a survey now and we will time the application for the higher grant.
- Q2 2026 Ofgem price cap (1 April to 30 June): gas at 5.74p/kWh, electricity at 24.67p/kWh. The Q3 cap, effective 1 July, is announced by Ofgem in late May.
- 0% VAT on residential heat pump installations confirmed in place until at least 31 March 2027.
- Grant Aerona 290 lead time: currently four to six weeks from survey to installation in Berkshire. Expect this to extend to six to eight weeks once the £9,000 uplift opens in July 2026 and West Berkshire demand spikes.
- Spring is the ideal time to switch: install a Grant Aerona 290 now and the system is commissioned, tuned, and learning your home well before the next heating season.
Frequently Asked Questions
A Grant Aerona 290 installation in Berkshire costs between £8,500 and £18,500 fully fitted, before any grants. After the £7,500 Boiler Upgrade Scheme grant, most homeowners pay between £1,000 and £11,000. From July 2026, oil and LPG-heated homes will qualify for an uplifted £9,000 grant, taking the typical net cost lower still.
Yes. The Grant Aerona 290 is a 5th-generation R290 heat pump from a long-established UK manufacturer, with SCOP figures of 4.74 to 5.08 at average climate and 35 °C flow, A+++ ErP rating across the range, Quiet Mark accreditation, and a 7-year guarantee when fitted by a Grant G1 Installer. It is the best-value MCS-certified heat pump on the UK market for most Berkshire homes.
In most respects, yes. The Aerona 290 uses R290 refrigerant with a Global Warming Potential of 3, against 675 for the older R32 chemistry in the Aerona³. R290 also performs better at low temperatures. The Aerona 290 is the unit we install on new projects unless there is a specific reason to specify the Aerona³.
Yes. The entire Grant Aerona 290 range is MCS-certified and eligible for the £7,500 Boiler Upgrade Scheme grant in England and Wales. As an MCS-certified installer, Infinity Energy Services applies for the grant on your behalf and deducts it from your invoice before you pay.
If your home is currently heated by oil or LPG, the answer is almost certainly yes from July 2026, when DESNZ is expected to publish the formal grant change notice. The uplift runs until 31 March 2027. We will check your eligibility at survey and time your application to capture the £9,000 level.
Sound power on the Grant datasheet (BS EN 12102-1) is 48 to 54 dB(A) across the range, and sound pressure at one metre is 40 to 46 dB(A). For comparison, normal conversation sits around 60 dB(A). The MCS 020 noise calculation we run before installation must show no more than 37 dB(A) at the nearest neighbour’s habitable-room window, and we design the unit position around that limit.
Air source heat pumps typically last 15 to 20 years with annual servicing, longer than a typical oil or gas boiler. The Grant Aerona 290 is supplied with a 7-year manufacturer guarantee when fitted by a Grant G1 Installer with a Mag One DUO filter, both of which are standard with us. The hot water cylinder is usually rated for 25 years.
Yes. Grant’s standard manufacturer guarantee is 2 years. The full 7-year guarantee on the Aerona 290 is unlocked only when the system is installed by an accredited G1 Installer with a Grant Mag One DUO magnetic filter. Infinity Energy Services is a G1 Installer; the filter is fitted as standard.
Get a Free Grant Heat Pump Quote in Berkshire
If a Grant Aerona 290 is on your shortlist for your Berkshire home, the next step is straightforward.
Request a free no-obligation heat pump installation quote from Infinity Energy Services and we will give you an indicative cost within 24 hours, followed by a detailed on-site survey at a time that suits you.
We are an accredited Grant G1 Installer, MCS-certified, RECC-registered, and named Best Regional Installer at the Energy Efficiency Awards in 2023, 2024, and 2026.
We design every system to deliver real-world efficiency, we apply for your £7,500 BUS grant (or £9,000 from July 2026 if you are on oil or LPG), and we stand behind the work for years afterwards under the Grant 7-year guarantee.
