Nationwide is offering £20k in interest free loans for home upgrades — find out if you qualify
Nationwide is offering interest-free finance for solar panels, insulation, heat pumps, and other eco-friendly improvements, but it's on a first-come, first-served basis
Bring your dream home to life with expert advice, how to guides and design inspiration. Sign up for our newsletter and get two free tickets to a Homebuilding & Renovating Show near you.
You are now subscribed
Your newsletter sign-up was successful
Nationwide is expanding its Green Additional Borrowing offer, letting homeowners borrow up to £20,000 interest-free for eco-friendly home improvements.
The scheme is available for existing mortgage customers and includes upgrades like solar panels, insulation, and energy-efficient windows.
Following a successful first round in 2024, demand is high, and homeowners looking to create their own eco homes are urged to apply quickly before availability runs out.
Article continues below0% loans: How do they work?
The Green Additional Borrowing mortgage allows existing Nationwide mortgage holders to borrow between £5,000 and £20,000 at 0% interest for either two or five year terms.
The loan must be used exclusively for energy-saving improvements, such as boiler upgrades, solar panels, air-source heat pumps, loft or cavity wall insulation, double or triple glazing, and electric car charging points. Monthly payments remain interest-free for the chosen term, after which the remaining balance converts to Nationwide’s standard mortgage rate.
Henry Jordan, Nationwide’s Group Director of Mortgages, said: “We are committed to helping our members improve the energy efficiency of their homes. Extending our zero per cent Green Additional Borrowing products will help another five thousand households who want to retrofit their home and can afford long-term investment but struggle to meet the upfront costs.”
This is an expansion of the 2024 offer, which proved extremely popular. That scheme, also allowing up to £20,000 for green home upgrades, saw its first allocation sell out quickly, demonstrating the appetite for affordable, eco-friendly home improvements.
Bring your dream home to life with expert advice, how to guides and design inspiration. Sign up for our newsletter and get two free tickets to a Homebuilding & Renovating Show near you.
Who qualifies for Nationwide's 0% loans?
To access the Green Additional Borrowing, homeowners must have an active Nationwide mortgage, with the combined total of their existing mortgage and the additional borrowing not exceeding 90% of the property’s value.
The additional borrowing term cannot exceed the remaining term of the existing mortgage, and only one Green Additional Borrowing mortgage per property is allowed.
Nationwide recommends that interested homeowners act quickly, as the previous round in 2024 sold out fast due to high demand for energy-efficient upgrades.
Why it matters for homeowners
With energy costs rising and climate concerns increasing, the mortgage gives homeowners a practical way to make their homes more energy-efficient without upfront costs.
Home improvements financed through this scheme can reduce energy bills, increase property value, and contribute to the UK’s decarbonisation goals.
By doubling the availability from the initial 2024 offer, Nationwide is making it easier for thousands more households to access interest-free funding for green upgrades, but limited availability means acting quickly is essential.

News Editor Joseph has previously written for Today’s Media and Chambers & Partners, focusing on news for conveyancers and industry professionals. Joseph has just started his own self build project, building his own home on his family’s farm with planning permission for a timber frame, three-bedroom house in a one-acre field. The foundation work has already begun and he hopes to have the home built in the next year. Prior to this he renovated his family's home as well as doing several DIY projects, including installing a shower, building sheds, and livestock fences and shelters for the farm’s animals. Outside of homebuilding, Joseph loves rugby and has written for Rugby World, the world’s largest rugby magazine.
