Air conditioning and heat pump installs used to be a card-or-cash conversation. In 2026, the installers winning the biggest jobs are the ones who can say "spread it over 12 months, 0% interest" before the customer even asks.
- 0% finance for air conditioning installers turns a £6,000 heat pump quote into a monthly figure customers approve on the spot.
- PayItMonthly's 0% finance settles installers in days, not at the end of a 12-month plan.
- Match the instalment term to the job: 6 months for AC-only retrofits, 12 months for heat pump conversions.
- Skip finance offers that dump full merchant fees on your margin without a clear settlement timeline.
Why this matters
A heat pump conversion routinely runs £7,000 to £13,000 before the £7,500 Boiler Upgrade Scheme grant is applied, and a domestic AC install still sits at £2,500 to £6,000. Neither figure is a casual weekend spend. Homeowners increasingly expect a monthly-payment option before they'll sign, and installers who can't offer one lose the quote to whoever can.
PayItMonthly settles installers within days of the job going in, while the customer pays it off in interest-free instalments over the following months. You get paid like a cash job. Your customer gets a payment they can actually plan around. That gap between quote day and payment day is where AC and heat pump jobs are won or lost in 2026.
Who this is for
This guide is for HVAC and heat pump installers quoting jobs above £2,000 who are losing conversions to price objections, or watching customers stall while they "think about it" and go quiet. If you're already doing 10+ heat pump or AC installs a month and each one sits at four or five figures, offering 0% finance for air conditioning installers isn't optional marketing polish. It's the difference between a signed job and a lost one.
What to look for in 0% finance for AC and heat pump installers
Settlement speed
A finance plan is only as good as how fast you get paid. If a provider settles you on the same schedule the customer repays over, you're financing the job yourself with extra steps. Look for next-day or few-day settlement so cash flow doesn't tie up materials for the next install.
Instalment terms that match job size
A £2,800 AC retrofit and an £11,000 heat pump conversion shouldn't sit on the same repayment term. Providers offering flexible terms — 3, 6, 12, or 24 months — let you price the monthly figure to match what a homeowner is comfortable committing to, rather than forcing every job into one bracket.
No hidden merchant fee creep
Some finance products advertise "0% for customers" while quietly charging installers a merchant fee that eats 4-8% off the job value. Ask for the fee structure in writing before you quote a finance option to a customer — it changes your margin math on every single job.
FCA-regulated and ASA-compliant advertising
Consumer credit is regulated. Any 0% finance option you offer needs FCA authorisation behind it, and any advert mentioning "0% APR" or "interest-free" has to meet ASA rules on representative examples. Getting this wrong risks a complaint, not just a fine.
Checkout integration that doesn't slow the sale
If a customer has to leave your quoting process, fill out a separate application on a third-party site, and wait 48 hours for a decision, you've lost the momentum of the sales visit. Instant or same-visit decisions close jobs while the homeowner is still standing in the room with you.
Deposit flexibility
Some finance structures require a 20-30% deposit before the plan kicks in. For a £9,000 heat pump job, that's £1,800-£2,700 upfront — often the exact amount stopping the customer from saying yes. Low or no-deposit options remove that final barrier.
Top picks by job type
The heat pump conversion — the big-ticket job
Heat pump installs commonly land between £7,000 and £13,000 before the Boiler Upgrade Scheme grant of £7,500 is applied in England and Wales. A 12-month 0% plan turns an £8,000 net cost into roughly £667 a month — a figure most households can weigh against their existing heating bill. Installers running multiple heat pump jobs a month should look at how boiler and heating installers structure their finance offers, since the customer psychology and job values overlap almost exactly with AC and heat pump conversions. Verdict: Buy.
The summer AC retrofit — the volume play
Domestic AC installs typically run £2,500 to £6,000, and the buying decision happens fast, often mid-heatwave when the customer wants cool air this week, not next month. A 6-month 0% term keeps the monthly figure low enough that homeowners approve it during the same visit as the quote, rather than sleeping on it for a week and cooling off. Verdict: Buy.
The renewables bundle — the cross-sell
Heat pump customers already thinking about running costs are a natural audience for solar. Bundling a heat pump with a solar array can push total project value past £15,000, which is exactly where a 24-month term earns its keep — the monthly figure stays manageable even as the job scope grows. Installers expanding into combined renewables work should check how solar panel installers structure longer instalment plans for comparable project sizes. Verdict: Consider.
The EV charger add-on — the upsell
A customer installing a heat pump is often the same customer who'll want an EV charger within the year. Offering 0% finance on the charger as an add-on at the point of the heat pump install captures a second sale you'd otherwise lose to a separate installer later. See how EV charger installation companies price their own instalment offers for a sense of typical add-on ticket sizes. Verdict: Consider.
Start offering 0% finance on installs
Get paid fast while customers spread the cost interest-free.
What to avoid
- Finance that settles on the customer's timeline, not yours. If you don't get paid until the customer's plan matures, you're bankrolling the job yourself for 6-24 months. That's not finance, that's an unpaid invoice with extra paperwork.
- Merchant fees buried in the small print. A provider quoting "free for merchants" that actually charges 6% per transaction has just handed you a margin cut disguised as a benefit. Get the fee schedule in writing before you promote any 0% offer to customers.
- Advertising 0% finance without checking ASA rules. Every advert mentioning interest-free credit needs a compliant representative example. Getting this wrong on a shopfront sign or social post is an easy, avoidable complaint.
Verdict comparison table
| Job type | Typical project value | Recommended term | Verdict |
|---|---|---|---|
| AC-only retrofit | £2,500-£6,000 | 6 months | Buy |
| Heat pump conversion | £7,000-£13,000 | 12 months | Buy |
| Heat pump + solar bundle | £15,000+ | 24 months | Consider |
| EV charger add-on | £800-£2,500 | 3-6 months | Consider |
FAQ
What is 0% finance for air conditioning installers?
It's a payment plan that lets a customer spread the cost of an AC or heat pump install over several months with no added interest, while the installer gets paid upfront or within days. PayItMonthly settles installers quickly regardless of the customer's repayment term.
How much does 0% finance cost the installer?
Providers typically charge a merchant fee per transaction rather than charging the customer interest. Ask any provider for the exact fee structure before quoting finance to customers, since rates vary between platforms.
Do I need FCA authorisation to offer 0% finance?
You don't need your own FCA authorisation if you're working with a regulated finance provider — the provider holds the consumer credit permissions and you act as their agent at checkout. Confirm this with any provider before signing up.
What size job should have a 0% finance option?
Any job over roughly £2,000 benefits from a finance option, since that's where price objections typically start. Heat pump conversions at £7,000-£13,000 see the strongest conversion lift from monthly payment options.
How fast does the installer get paid on a 0% finance plan?
With PayItMonthly, installers are settled within days of the job completing, separate from the customer's repayment schedule. That keeps cash flow moving to the next job instead of waiting out a 12-month plan.
Can I advertise 0% finance on air conditioning jobs?
Yes, but any advert referencing 0% APR or interest-free credit must include a compliant representative example under ASA rules. Check current advertising guidance before running the offer on signage or social media.
Is 6 months or 12 months better for AC installs?
Six months suits AC-only retrofits in the £2,500-£6,000 range, keeping monthly payments manageable without stretching the term unnecessarily. Twelve months fits heat pump conversions at £7,000-£13,000, where a shorter term would push monthly payments too high for most households.
Does 0% finance work alongside the Boiler Upgrade Scheme grant?
Yes. The grant reduces the total project cost first, and the remaining balance can be split into 0% monthly instalments. This combination often turns an £8,000 net heat pump cost into a monthly figure under £700 over 12 months.
One last thing
The installers converting the most heat pump quotes in 2026 aren't discounting the job. They're changing the number the customer sees — from "£8,500" to "£708 a month, 0% interest" — and that reframe alone closes deals that a straight cash quote never would.
