Payment options
Solar, heat pumps, batteries, EV chargers and boilers are substantial purchases. Cash from savings remains the cheapest route, and there are several grant routes that reduce what you pay in the first place — the £7,500 Boiler Upgrade Scheme for heat pumps, ECO4 and Warm Homes for eligible households, and capital allowances for businesses.
Residential customers
The simplest and cheapest route. Solar in particular has unusually strong cash-deployment economics — the typical 6-9 year payback and 25-year revenue stream is among the highest-return uses of savings available to UK households in 2026 outside specialist investment products.
For heat pumps, the £7,500 Boiler Upgrade Scheme grant is available to eligible homeowners in England and Wales. We apply on your behalf and deduct it from the quote, so you only ever fund the balance — it is not something you claim back later.
For lower-income households, ECO4, the Home Upgrade Grant and the Warm Homes Local Grant can fund significant portions of solar, insulation and heat-pump installs. Eligibility depends on income, benefits status, EPC rating and property type. We check eligibility on every survey at no cost.
The £350 OZEV EV chargepoint grant is available for eligible flats and rental properties. We handle the claim and credit it against your final invoice. Single-house owners are not eligible — the Electric Vehicle Homecharge Scheme closed to them in March 2022.
Flexible finance options are available via Propensio Finance. Click the Flexible Finance button, enter your system cost, and you’ll be taken to the Propensio website where you’ll find further information on the finance options.
Flexible FinanceCommercial customers
Standard route for cash-rich businesses. Pay capital up front; claim the full Annual Investment Allowance (£1m AIA threshold) plus capital allowances on any balance. For a limited company at 25% Corporation Tax rate, this drops effective net cost by ~25% in year one. Best long-term ROI.
Zero up-front cost. A third party owns the array on your roof and sells you the generated electricity at a fixed per-kWh rate below your retail price, typically with 1-3% annual escalator over 20-25 years. Strongest fit for large installs (200kW+) on stable long-tenure sites. We arrange the PPA with vetted partners.
For schools, NHS estates, councils and housing associations, PSDS Phase 4 funds up to 100% of capital cost for qualifying heat pump + supporting renewables projects. Annual application rounds; we scope and prepare bids alongside the design package. Bid-to-handover timescale typically 9-15 months.
Above the AIA cap, full expensing allows companies to write off 100% of qualifying plant and machinery against taxable profits in the year of purchase. Relevant for larger commercial arrays and multi-site rollouts. We size the specification alongside your accountant so the allowances land in the right accounting period.
How to choose
The honest decision tree for most customers:
We talk customers through their specific situation as part of every survey — no high-pressure sales, and a fixed-price written quote either way.
Our accreditations
MCS Certified
NAPM47760
Heat pumps & solar
NICEIC Approved
D124458
Electrical contractor
Gas Safe Register
947841
Gas appliances
Heat Geek Trained
Heat pump design specialists
SafeContractor
Approved
H&S accredited
ISO 9001
2015
Quality management
ISO 14001
2015
Environmental management
ISO 45001
2018
OH&S management
PAS 2030
:2019
Retrofit standard
NAPIT
Member
Electrical inspection
F-Gas Certified
Air conditioning refrigerant
Tesla Certified Installer
Powerwall battery storage
Sigenergy Approved Installer
SigenStor battery storage
Fox ESS Approved Installer
EVO & Cube battery storage
MCS Certified
NAPM47760
Heat pumps & solar
NICEIC Approved
D124458
Electrical contractor
Gas Safe Register
947841
Gas appliances
Heat Geek Trained
Heat pump design specialists
SafeContractor
Approved
H&S accredited
ISO 9001
2015
Quality management
ISO 14001
2015
Environmental management
ISO 45001
2018
OH&S management
PAS 2030
:2019
Retrofit standard
NAPIT
Member
Electrical inspection
F-Gas Certified
Air conditioning refrigerant
Tesla Certified Installer
Powerwall battery storage
Sigenergy Approved Installer
SigenStor battery storage
Fox ESS Approved Installer
EVO & Cube battery storage
Every accreditation listed is independently verified. We carry the registration numbers — ask for any on request.
Free survey, grant eligibility checked at no cost, and a written quote with no commission-driven upsells.
