Heat pump installation training and certification UK

The heat pump market in the UK continues to grow steadily. The government's Boiler Upgrade Scheme (BUS) is still active in 2026, providing homeowners £7,500 off the cost of an air source or ground source heat pump. The 2025/26 budget stands at £295 million, leading to a steady stream of enquiries for installers.

If you're a heating engineer, plumber, or renewables installer, getting certified to install heat pumps is a smart move. This guide details what you need, the duration of training, and the associated costs.

Why heat pump work is worth pursuing

Heat pumps are here to stay. With the UK's legal commitment to net zero by 2050, low-carbon heating is key. Gas boiler sales face increasing restrictions, and heating systems are now part of property valuations by lenders and surveyors.

For those with MCS accreditation, the BUS scheme is installer-led. You apply for the grant on behalf of the homeowner, deduct the £7,500 from your invoice, and reclaim it from Ofgem. This makes you an essential part of the process, increasing your appeal to customers.

Typical air source heat pump installations cost between £8,000 and £15,000, including materials and labour. After the grant, homeowners pay between £500 and £7,500, keeping demand high.

What qualifications do you need to install heat pumps?

There's no single certificate. You need existing competencies and a heat pump-specific qualification. Here's the breakdown.

Pre-requisite competencies

Before taking a heat pump course, you must prove competence in:

• At least three years' experience with wet central heating systems, evidenced by Gas Safe registration, OFTEC registration, or similar
• Water Regulations / Water Byelaws (WRAS, BPEC, or ERC certificate)
• Unvented Domestic Hot Water Storage (UVDHW) — an ERS or BPEC unvented cylinder certificate
• Energy efficiency for domestic heating — City and Guilds 6084 or equivalent

If you're a Gas Safe registered heating engineer, you probably have most of these. If you're from plumbing or renewables, compare your certificates to this list before enrolling.

The main heat pump qualifications

Two main qualifications are recognised for MCS in the UK.

BPEC Level 3 Award in Heat Pump Systems — BPEC offers a qualification aligned with the National Occupational Standards for heat pump installation. This includes system design, heat loss calculations, commissioning, and fault-finding. Most BPEC courses last four days, though this can vary.

City and Guilds Level 3 Award in the Installation and Maintenance of Heat Pump Systems — City and Guilds offers a similar qualification. Some centres offer City and Guilds instead of BPEC; both are valid for MCS.

Find approved training centres through the Energy Saving Trust's heat pump installer toolkit and the MCS website's course finder.

MCS certification

MCS (Microgeneration Certification Scheme) certification lets you install heat pumps under the BUS scheme and provide the necessary certificates. Without it, you can install a heat pump, but the homeowner can't claim the grant and the installation won't be certified.

MCS certification is at the company level. You need to either establish your own MCS-certified company or work for one. The process involves:

1. Completing an MCS-approved heat pump qualification (BPEC or City and Guilds)
2. Applying to an MCS-approved certification body (such as NAPIT, HIES, or RECC)
3. Undergoing an assessment of your business processes, insurance, and technical documentation
4. Paying annual certification fees

MCS certification is valid for five years. After that, a refresher assessment is needed.

How long does training take?

The heat pump course itself usually takes four days. If you need additional pre-requisites, factor in extra time. A heating engineer with Gas Safe, an unvented cylinder certificate, and water regulations training can finish in about a week.

Getting MCS certification takes longer due to the need for business assessment. Expect four to eight weeks from application to approval, though times vary.

What does it cost?

Course fees vary by provider and location. A BPEC heat pump systems course typically costs between £600 and £1,200. Some providers include accommodation and materials; others don't, so check the details.

If you're employed or CITB-registered, see if you're eligible for a CITB grant before paying full price. CITB-registered employers can claim grants for training and assessment costs.

MCS certification fees add to this. Annual fees vary, but plan for around £500 to £1,000 yearly for a small sole trader or limited company.

The Low Carbon Heating Technician apprenticeship

When hiring new staff, consider the Level 3 Low Carbon Heating Technician apprenticeship. It covers heat pump installation and other low-carbon technologies. It's been available at more training providers since 2025. This route is longer but produces well-trained engineers.

What jobs will you be able to do?

With BPEC or City and Guilds and MCS certification, you can install:

• Air source heat pumps (air to water, the most common domestic type)
• Ground source heat pumps
• Air to air heat pumps (£2,500 BUS grant applies here)

Ground source work requires refrigerant handling qualifications (F-Gas) if you're dealing with refrigerant circuits. Check your qualification covers the necessary units before booking — some BPEC routes only cover non-refrigerant circuits, requiring additional F-Gas certification for ground source.

Getting work as a certified heat pump installer

Once MCS-certified, register on the MCS installer directory. Homeowners using the BUS scheme search here for installers. Also consider platforms like Heatable, Heat Geek, or Checkatrade.

Effective marketing is vital. Most homeowners don't know the differences between Air to Water and Air to Air, or what a heat loss calculation involves. Clear explanations in quotes can give you an advantage over less communicative competitors.

When quoting, accurate paperwork is key. A clear, itemised quote protects you if specifications change. Use a quote generator for professional quotes quickly, ensuring your invoices match your MCS certificates for Ofgem claims.

Consider cash flow. BUS grants are paid post-job, meaning you cover materials and labour upfront. On a £12,000 installation, that's significant. Use an invoice generator to track outstanding payments and plan your workload.

Useful resources

• Ofgem: Boiler Upgrade Scheme
• BPEC: Heat Pump Systems qualification details
• MCS: Find a training course
• Energy Saving Trust: Training providers toolkit
• CITB: Training grants for employers

Frequently asked questions

Do I need MCS to install heat pumps in the UK?

Legally, MCS isn't required to install a heat pump. However, without it, homeowners can't claim the Boiler Upgrade Scheme grant, and installations can't be certified. Practically speaking, most domestic heat pump work requires MCS, making it essential for this market.

Can a plumber with no gas experience do heat pump training?

Yes, but ensure your certificates cover the pre-requisites. You'll need a current unvented cylinder qualification, evidence of water regulations training, and either three years' experience in wet heating systems or a recognised heating qualification. A plumber with solid central heating experience should meet these requirements.

How much can I earn as a heat pump installer?

Day rates for qualified heat pump installers typically range from £250 to £400 in 2026, depending on location and experience. Full installation contracts usually run between £8,000 and £15,000, from which material and subcontractor costs are deducted. A busy MCS-certified sole trader can earn £80,000 to £150,000 annually, depending on how much design and commissioning work they do themselves.

Does the BUS grant run out?

The Boiler Upgrade Scheme operates on an annual budget. The 2025/26 budget is £295 million. If exhausted before year-end, new vouchers aren't issued until the next financial year. Historically, demand hasn't exceeded the budget, but this may change as uptake increases.

What is the difference between BPEC and City and Guilds for heat pumps?

Both are Level 3 qualifications recognised for MCS. The main difference is the awarding body and training centres offering them. Choose based on the most convenient centre with good reviews, rather than the qualification brand.