How to Apply for a Warm Homes Loan in Scotland (2026)

Quick answer

You apply for a Warm Homes Loan through a lender, not through the government or your installer. Pick a lender from the GOV.UK list, check that the work is covered (solar panels and battery storage are, up to £15,000 each), get a written quote from an MCS-certified installer, and let the lender run its credit and affordability checks. The scheme is UK-wide, so it is open to homeowners in Scotland. For the full picture of what it covers and how it sits with Home Energy Scotland, see our page on the Warm Homes Loan Scheme in Scotland.

Ecoaim is not a lender or credit broker and does not arrange Warm Homes loans. This guide explains the process so you know what to expect.

Step 1: check you can apply

The GOV.UK eligibility page sets three basic conditions:

• you own the home, with or without a mortgage;
• the property is in the UK;
• it is residential, not commercial.

The scheme rules also cover private landlords who borrow personally. There is no income test, but every lender runs its own credit and affordability checks and may add rules of its own.

Step 2: check the work is covered

The loan pays for energy-saving improvements fitted by an MCS-certified installer. The scheme rules (version 3, September 2026) set these caps:

You can use one loan for more than one improvement, for example solar panels and a battery together. You cannot do the work yourself.

Step 3: choose a lender

The loan comes from a lender, such as a bank. GOV.UK publishes the list of Warm Homes Loan lenders and asks you to contact them directly about their products, interest rates, repayment terms, application process and eligibility. Some Warm Homes loans are interest-free, but not all, so compare what each lender offers before you apply. We do not recommend a lender.

Step 4: get an MCS installer's quote

Before you borrow, you need to know what the work will cost. A good quote is written, names the panels, battery and inverter, shows any scaffolding or consumer unit work as separate lines, and comes from an installer on the MCS register. Solar panels and batteries for homes carry 0% VAT until 31 March 2027 under HMRC VAT Notice 708/6, so the quoted price should already reflect that. Our guide to solar panel costs in Scotland shows typical installed prices, and our battery storage page explains when a battery is worth adding.

Step 5: the lender decides, then the work goes ahead

The lender runs its checks and sets the rate and term. Once the work is installed, it is registered with MCS and may be checked as part of the scheme's audit, so keep your quote, invoice and MCS certificate together.

How it fits with Home Energy Scotland

Home Energy Scotland stopped funding solar panels and batteries on 6 June 2024, so for those two the Warm Homes Loan is the government-backed loan route. Home Energy Scotland still offers heat pump funding: a grant of up to £7,500 plus an optional interest-free loan of up to £7,500. GOV.UK says you may be able to use a Warm Homes loan alongside Home Energy Scotland grants, but not for the same improvement. If your household is on a low income, Warmer Homes Scotland may fund upgrades instead of a loan.

Avoid loan scams

The government and lenders never cold-call to sell Warm Homes loans or charge a fee to apply. If someone contacts you out of the blue offering one, do not share bank details: go to the lender yourself through the GOV.UK list, and check any installer on the MCS register.

What to have ready

Lenders set their own requirements, but these are worth having to hand:

• proof that you own the home;
• a written quote from an MCS-certified installer;
• your income and outgoings for the lender's affordability check;
• for a battery or solar system, about a year of electricity bills, so the system is sized to how you actually use power.

When you are ready for the installation part, request a quote from our MCS-certified team and we will survey your home.