
JPEC Green Energy becoming an Accredited Installer in the Mitsubishi Electric Partner Programme means they have been approved by Mitsubishi Electric to design and install their heating systems to recognised standards. In simple terms, it gives you added reassurance about training, product knowledge, and installation quality.
If you are considering a heat pump in Horley, Reigate, Redhill, Crawley, or anywhere across Surrey and West Sussex, this accreditation is about competence and accountability, not marketing badges.
In this guide, we will cover:
- What the Mitsubishi Electric Partner Programme is
- What “Accredited Installer” actually means
- Why manufacturer accreditation matters
- What this means for your warranty and support
- Does this make a difference to performance?
- What installation still depends on
- Who Mitsubishi heat pumps are suitable for
- Common misunderstandings about accreditation
- What to check before going ahead
- Practical next steps
What is the Mitsubishi Electric Partner Programme?
The Mitsubishi Electric Partner Programme is a manufacturer scheme for approved installers of their heating systems, including air source heat pumps.
An air source heat pump is a system that extracts heat from outside air and upgrades it to warm your home and hot water. It runs on electricity and can be an alternative to a gas or oil boiler.
The Partner Programme sets standards around:
- Installer training
- Technical knowledge
- Correct system design
- Installation quality
- Ongoing support
It is not open to every installer. Companies must meet criteria and maintain standards to remain accredited.
What does “Accredited Installer” actually mean?
Accredited Installer means JPEC Green Energy has completed the required training and assessment with Mitsubishi Electric and is recognised as competent to install their systems.
This typically includes:
- Product-specific training
- Design principles for heat pump systems
- Commissioning procedures, which is the formal setup and testing of the system
- Understanding of manufacturer requirements
For you, this means the installer should be fully familiar with how Mitsubishi systems are intended to be installed and set up, rather than treating them as a generic product.
Why does manufacturer accreditation matter?
Heat pumps are sensitive to design and setup. A poorly designed system can lead to high running costs or disappointing performance, even if the equipment itself is good.
Accreditation matters because:
- The installer understands the specific controls and settings of that brand
- The system is more likely to be set up in line with manufacturer guidance
- There is clearer support between installer and manufacturer if issues arise
For example, if you are in a 1930s house in Redhill with older radiators, the heat pump must be sized and configured correctly for your heat loss. The manufacturer’s guidance on flow temperatures, system layout, and controls becomes important.
Accreditation does not guarantee perfection, but it reduces the risk of avoidable mistakes.
What does this mean for your warranty and support?
In most cases, manufacturer-accredited installers can offer clearer access to product warranties and technical support.
Mitsubishi Electric heat pumps typically come with a manufacturer warranty, subject to correct installation and commissioning. If a system is not installed in line with guidance, warranty claims can become more complicated.
Using an accredited installer helps because:
- Installation records are more likely to meet manufacturer standards
- Commissioning is completed properly
- There is a direct line of technical communication if needed
This does not remove your need to maintain the system or follow servicing requirements, but it adds a layer of reassurance.
Does this make a difference to performance?
It can, but only if combined with good system design.
Performance in a heat pump system depends on several factors:
- Accurate heat loss calculations for your property
- Correctly sized radiators or underfloor heating
- Suitable insulation levels
- Proper commissioning and settings
Even the best heat pump will struggle in a poorly insulated property with undersized radiators.
In Surrey and West Sussex, properties vary widely. A modern home in Crawley may already be well insulated, while an older home in Horley or Reigate may need radiator upgrades or insulation improvements.
As experienced local installers, JPEC Green Energy carry out surveys and heat loss assessments before specifying a system. Accreditation supports that process, but the design work remains critical.
What does installation involve with an accredited installer?
The physical installation process is broadly the same, but the planning and setup are where accreditation adds value.
A typical air source heat pump installation includes:
- A detailed home survey and heat loss calculation
- Sizing and selecting the correct model
- Assessing radiators and pipework
- Installing the outdoor unit
- Installing or adapting the hot water cylinder
- Electrical connections and controls
- Commissioning and testing
Most domestic installations take several days, depending on complexity and whether radiator upgrades are required.
There will be some disruption. Floors may need lifting for pipework. The old boiler may be removed. Access to the garden or driveway is required for the outdoor unit.
An accredited installer is expected to follow manufacturer commissioning steps carefully, which can directly affect efficiency and comfort.
Who are Mitsubishi heat pumps suitable for?
Mitsubishi Electric heat pumps are suitable for many, but not all, properties.
They are generally well suited to:
- Homes with reasonable insulation
- Properties with space for an outdoor unit
- Households looking to move away from gas or oil
- New builds and well-refurbished homes
They may be more challenging in:
- Very poorly insulated properties
- Homes with limited space for hot water storage
- Flats without suitable outdoor unit locations
For landlords or small business owners in Crawley or Redhill, heat pumps can work well where there is predictable heating demand and scope for proper system design.
A professional survey is essential to confirm suitability.
Common misunderstandings about accreditation
Accreditation is valuable, but it is not magic.
Some common misconceptions include:
- “Accredited means it will definitely be cheaper to run.”
- “Accredited means no disruption.”
- “Accredited means any property will work perfectly with a heat pump.”
Running costs depend on electricity prices, insulation levels, system design, and how you use the heating.
Accreditation improves the likelihood of correct installation, but it does not override the basic physics of heat loss.
What should you check before going ahead?
Even with an accredited installer, you should ask clear questions.
For example:
- Has a full heat loss calculation been carried out?
- Will existing radiators be sufficient?
- What flow temperature will the system run at?
- What are the estimated annual running costs based on my usage?
- What maintenance is required?
Flow temperature is the temperature of the water sent to your radiators. Lower flow temperatures are generally more efficient for heat pumps, but your system must be designed to work at those levels.
In places like Reigate or Horley where property types vary, assumptions should not be made without measurement.
JPEC Green Energy can explain these trade-offs in plain English and provide realistic expectations based on your property rather than generic figures.
What happens after installation?
After installation and commissioning, you should receive:
- User guidance on controls
- Warranty information
- Handover documentation
- Advice on servicing
Heat pumps require periodic servicing to maintain efficiency and warranty validity.
Monitoring is often available through an app, allowing you to track performance and adjust settings if needed.
Accredited installers are expected to understand ongoing optimisation, not just initial installation.
JPEC Green Energy can help
If you are considering a Mitsubishi Electric heat pump in Horley, Reigate, Redhill, Crawley, or anywhere across Surrey, Sussex and the South East JPEC Green Energy can guide you through the process.
As an Accredited Installer in the Mitsubishi Electric Partner Programme, we can:
- Carry out a detailed survey and heat loss assessment
- Design a system suited to your property and usage
- Install and commission in line with manufacturer standards
- Explain expected performance and running costs clearly
- Provide ongoing support and servicing
To discuss your home or business and receive tailored advice and a detailed quotation, contact JPEC Green Energy.
This article is for general information only and is not personal or financial advice. The suitability, performance, and running costs of any heating system depend on your specific property, insulation levels, usage patterns, and system design. Always confirm recommendations through a professional survey and detailed proposal based on your site.






