Boilers on Finance: 0% APR & Pay Monthly Deals Explained (2026)

What is boiler finance and how does pay-monthly work?

Boiler finance is a credit agreement that lets you pay for a new boiler — and usually the installation — in monthly instalments rather than one lump sum. You take the boiler now and repay over a fixed term.

Three things shape every plan: the deposit (sometimes £0, sometimes up to 50%), the term (typically 1 to 10 years), and the monthly instalment. A longer term means a smaller monthly payment but often more interest overall.

The lender is usually not the installer. Most finance is provided by a third-party lender (for example Novuna or Ideal4Finance) and arranged by the installer, manufacturer or energy supplier acting as a credit broker.

The 4 types of boiler finance

Pay-monthly deals fall into four broad shapes. Each suits a different budget and credit profile.

• 0% APR (interest-free): you repay exactly the cash price, split into instalments. Best value if you qualify — but usually limited to shorter terms (often 12–48 months) and sometimes a deposit.
• Low-APR interest-bearing: longer terms (up to 10 years) at a representative APR typically around 7.9%–11.9% with mainstream providers. Lower monthly cost, higher total repayable.
• Buy Now Pay Later / deferred: payments start after a delay (e.g. 6–12 months). Interest may build during the deferral, so read the terms carefully.
• No-deposit plans: £0 upfront. Convenient, but the headline low monthly figure (from ~£25/month) usually relies on a long, interest-bearing term that costs far more over time.

How much does a boiler cost per month on finance?

A typical installed boiler in 2026 costs roughly £1,595–£3,000 for entry to mid-range jobs, rising to £5,000–£6,600 for complex installs. Monthly finance payments commonly land between £49 and £167.

The headline monthly figure tells you little on its own. What matters is the total repayable. These worked examples show why:

Boiler price	Term	APR	Monthly	Total repayable
£2,250	24 months	0%	£93.75	£2,250 (no extra)
£3,000	3 years	0%	£83.33	£3,000 (no extra)
£2,250	5 years	11.9%	~£49	~£2,955 (≈£705 interest)

The 5-year plan has the lowest monthly cost but adds several hundred pounds in interest. Same boiler, very different total — that is the trade-off competitors' quote tools tend to bury. Figures are illustrative for 2026; your actual rate depends on the lender and your credit profile.

Provider comparison 2026 (selected panel)

The table below summarises the publicly advertised finance terms of a selection of well-known UK installers and suppliers. This is a selected panel, not the whole market, and terms change constantly — always confirm the current APR, term and deposit on the provider's own page before applying. Prices and terms were last checked in 2026.

Provider	0% period	Representative APR (interest-bearing)	Max term	Deposit
E.ON	Up to ~48 months on selected deals	~7.9% on long terms	120 months	£0 typical
British Gas	0% over 2–3 years (selected)	9.9% representative	Up to 10 years	£0 option
BOXT	0% from 12 up to 48 months	~9.9%–11.9% on longer terms	Up to 10 years (120 mo)	£0 to 50% (deposit may unlock best tiers)
WarmZilla	0% on selected shorter terms	Interest-bearing beyond	Longer interest-bearing	Varies
HomeServe	Selected offers	~9.9%	Up to 10 years	Varies
Heatable	0% on selected terms (12–48 months)	~9.9% on longer terms	Up to 10 years	£0; ~25% deposit may unlock best 0% tier

BOXT and Heatable typically offer one of the longest interest-free windows in the market (up to 48 months on selected deals); energy suppliers like E.ON and British Gas tend to favour no-deposit access and competitive long-term rates. None of these is a recommendation — fit, model and your credit decision matter more than the headline.

0% APR finance: is it really free?

Genuine 0% APR means you repay only the cash price — no interest. It can be real value. But the small print catches a lot of buyers.

• Short terms only. 0% is often capped at 12–48 months, so the monthly payment is higher than a long interest-bearing plan.
• Deposit sometimes required. Some 0% deals need a deposit (occasionally up to 50%, or around 25% to access the best tier) to qualify.
• Selected models. The 0% rate may apply only to certain boilers, not the one you actually want.
• The 51% rule. Under FCA rules, an advertised representative APR (including 0%) only has to reflect the rate offered to at least 51% of accepted applicants. The remainder may be offered a higher rate based on their credit profile.

So a "0% APR" headline is a representative example, not a guarantee for everyone. If you'd otherwise replace the boiler outright, weigh it against replacing your boiler for cash.

Boiler finance with bad credit

Finance with a poor or thin credit history is sometimes possible, but it is rarely cheap. Lenders price in the extra risk.

• Higher APR. Subprime rates often run from around 16.9% up to 20–30%, which can add a large sum over the term.
• Larger deposit. Paying more upfront reduces the lender's risk and may unlock approval.
• Guarantor. Some plans accept a guarantor to support the application.
• Soft search first. A pre-approval soft check shows your likely eligibility without affecting your score.

Be honest with yourself about affordability. A 30% APR over several years can cost more in interest than a modest cash boiler would have cost outright. If money is tight, free, impartial help is available from Citizens Advice and StepChange.

Will applying hurt my credit score?

It depends on the stage. There are two kinds of check, and they behave differently.

• Soft search (eligibility check): done first to show your likely options. Only you can see it — it does not affect your credit score.
• Hard search (full application): run when you formally apply. It is recorded on your file and can be seen by other lenders; several in a short window can dent your score.

Lenders also run an affordability check on your income and outgoings. Most will quote you on a soft search, so you can compare before committing to a hard search.

Finance vs paying cash vs a grant

Each route wins in different circumstances.

• Cash is cheapest overall when you can afford it — no interest, no agreement, full ownership from day one.
• 0% finance is strong if you qualify: you keep your savings and pay nothing extra. Interest-bearing finance only makes sense if the monthly figure genuinely fits your budget.
• Grants are not finance. The Boiler Upgrade Scheme grant offers £7,500 in England and Wales — but towards a heat pump, not a gas boiler (a temporary uplift to £9,000 applies to eligible oil/LPG off-gas homes from July 2026). The free boiler grants (ECO4) help eligible low-income households. Neither is repaid, and neither is the same as a pay-monthly plan.

If your boiler is borderline, read whether to repair or replace your boiler before committing to years of payments.

What's included in a finance package — and what isn't

A typical financed installation bundles more than the appliance. It usually includes:

• The boiler and standard installation labour;
• A manufacturer warranty (often up to 10–12 years on selected models, subject to annual servicing);
• Sometimes the first annual service.

What it usually does not include: repairs to the rest of your heating system (radiators, pipework, controls), call-out labour outside warranty terms, or general wear that the warranty excludes. Those gaps matter — which leads to the question almost no finance page answers.

Does a financed boiler still need boiler cover?

This is the angle most ranking pages skip. Financing the boiler does not mean everything that can go wrong is covered.

A manufacturer warranty covers manufacturing faults in the new boiler for the warranty period — but it typically requires an annual service by a Gas Safe registered engineer to stay valid, and it does not cover the wider system or, in many cases, the labour and call-out costs of a breakdown.

Boiler cover (or a service/care plan) is a different product. It can cover repair call-outs, labour, parts and sometimes the broader central-heating system — exactly the gaps a warranty leaves.

Cancelling, early repayment and missed payments

Because most boiler finance is a regulated credit agreement, you have clear rights — and clear consequences.

• Cooling-off: regulated agreements usually carry a 14-day right to withdraw after signing.
• Early repayment: you can normally settle early; some agreements apply an early-settlement adjustment, so check the figure on your paperwork.
• Missed payments: these can incur charges and are reported to credit reference agencies, which can harm your credit file and future borrowing.

If you're struggling to pay, contact the lender early — regulated lenders must treat customers in difficulty fairly. Free help is available from organisations such as Citizens Advice and StepChange.

Eligibility and how to apply

Most lenders ask broadly the same things. A typical checklist:

• Aged 18 or over;
• UK resident, often for 3 or more years;
• Valid ID and a recent utility bill or proof of address;
• A bank account and evidence you can afford the repayments.

The usual steps: get a fixed installed quote, run a soft-search eligibility check, choose your term and deposit, then complete the full application (a hard search) and sign the regulated agreement. Boiler finance is available across the UK, including Scotland, though grant schemes differ by nation.

This article is general information, not financial or gas-safety advice. We compare a selected panel of providers, not the whole market, and may earn a commission if you buy through our links. Always have gas appliances checked and repaired by a Gas Safe registered engineer; in a gas emergency call 0800 111 999. Prices are indicative UK guides for 2026 — confirm current prices on the provider's own site.