Last verified April 2026

Boiler Finance Options

A new boiler is a significant expense. If you can't pay upfront, there are several ways to spread the cost into manageable monthly payments.

0% Interest Finance

Typical APR

0%

Term

12-24 months

Monthly

£100-£200/month

Many boiler installation companies offer 0% finance over 12-24 months. This lets you spread the cost without paying any extra. Typically requires a credit check.

Pros

  • No extra cost
  • Fixed monthly payments
  • Quick approval

Cons

  • Short repayment period
  • Higher monthly payments
  • May require good credit score

Low-Rate Personal Loan

Typical APR

3-7%

Term

3-7 years

Monthly

£40-£80/month

A personal loan from your bank or building society can spread the cost over a longer period. Rates from 3-7% APR depending on your credit score and loan amount.

Pros

  • Lower monthly payments
  • Flexible terms
  • Can shop around for best rate

Cons

  • Pay interest on top
  • Total cost is higher
  • Requires credit check

Boiler Subscription / Rental

Typical APR

N/A

Term

10-15 years

Monthly

£30-£60/month

Some companies offer boiler-as-a-service where you pay a monthly fee that covers the boiler, installation, annual servicing, and repairs. No upfront cost.

Pros

  • No upfront cost
  • Servicing included
  • Repairs covered
  • New boiler immediately

Cons

  • Most expensive long-term
  • You don't own the boiler
  • Locked into long contract
  • Early exit fees

Credit Card (0% Purchase)

Typical APR

0% then 20-25%

Term

12-28 months (0% period)

Monthly

Flexible

If your credit card offers a 0% purchase period, you can pay for a smaller boiler installation and clear the balance interest-free. Best for amounts under £3,000.

Pros

  • Flexible repayments
  • No interest in 0% period
  • Section 75 protection

Cons

  • Risk of high interest after 0% ends
  • Credit limit may not cover full cost
  • Needs discipline to clear balance

Total Cost Comparison

Based on a £3,000 boiler installation, here's how the total cost compares:

OptionMonthlyTotal PaidExtra Cost
Pay upfront£3,000£0
0% finance (24 months)£125£3,000£0
Personal loan (5 yrs, 5% APR)£57£3,396£396
Boiler subscription (10 yrs)£45£5,400£2,400

Check for grants first

You may qualify for a government grant that covers some or all of the cost before taking on finance.

Grants & Schemes