Green mortgage path · Nationwide
Nationwide lends you up to £20,000 at 0%
If you're a Nationwide mortgage customer, you can borrow between £5,000 and £20,000 at 0% interest over 2 or 5 years, specifically for green home improvements — including a solar + battery install.
Product
Green Additional Borrowing
How it works
0% interest loan
Headline figure
Up to £20,000
What Nationwide's Green Additional Borrowing covers
- Solar PV (panels)
- Battery storage
- Heat pumps
- Insulation upgrades
- Double glazing
Eligibility
- You hold a current Nationwide residential mortgage.
- The property is your main residence (not buy-to-let).
- Borrowing is used for qualifying energy-efficient improvements.
- Subject to Nationwide's underwriting, affordability and LTV criteria.
How to claim
- 01Apply directly with Nationwide for an Additional Borrowing facility — flag the purpose as green home improvements.
- 02Pick the 2-year or 5-year 0% term at quote stage.
- 03Funds are released to you; you pay your installer directly.
- 04You repay alongside your main mortgage at 0% APR for the term, then it reverts to Nationwide's prevailing rate.
Source. Verified 23 June 2026 against www.nationwide.co.uk/mortgages/our-mortgages/green-additional-borrowing.
Not financial advice. Geko Energy is not a regulated mortgage adviser. The information on this page is factual and sourced from Nationwide's own published pages — eligibility for any product is determined by Nationwide, not by Geko. Lender terms change; always confirm current terms direct with Nationwide before relying on any specific figure. For regulated mortgage advice, speak to an FCA-authorised mortgage broker or Nationwide directly.
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0% VAT on installs commissioned before 31 March 2027