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about us

Directors Sarah Jones and Peter Rokvic have worked together for many years. Together they set up Xpert Energy Installations Ltd in 2011.

​Xpert Energy began with Consulting - providing design calculations and 3D modelling then grew to incorporate installation. The partnership identified a demand for maintenance in renewable energy technologies (with a focus on heat pumps and Mechanical Ventilation Heat Recovery) and Xpert Energy began to employ dedicated maintenance engineers to fill this void. Later, service contracts were added to offer the full service offering.

As the volume of installations grew, a dedicated designer was added to the team, with a degree in Renewable Energy and Renewable Energy Management and further qualifications such as OCDEA Energy Assessor for New Constructed Dwellings (Elmhurst Energy Systems Ltd) and The Domestic Heating Design Course with IDHEE (Institute of Domestic Heating and Environmental Engineers) to work alongside Sarah and the team with design and installation planning.

​Our team in the office have a range of qualifications and professional accreditations between them in renewable energy technologies Installation and Energy Assessment.

Some of these are:

IDHEE (Institute of Domestic Heating and Environmental Engineers) Domestic Heating Design Course

AECB (Association for Environment Conscious Building) - AECB Passivhaus

IET (Institute of Engineering and Technology) Members

ABBE (Awarding Body for the Built Environment)

OCDEA Energy Assessor for New Constructed Dwellings – Elmhurst Energy Systems Ltd


Xpert Energy are also members of RECC (Renewable Energy Consumer Code for the supply of renewable and micro heat and power generators to domestic consumers). We are CHAS accredited installers, hold Napit certification for MCS (Microgeneration Installation Standards) for Solar Heating, Solar Photovoltaic (PV) and Air/Ground source heat pump systems and BPEC Ventilation and we are Trustmark registered. Our Trustmark trades are Ground Source Heat Pumps and Air Source Heat Pumps.

Our Insurance provider is HCC International Insurance / Convex Insurance / XL Catlin Insurance Co UK Ltd and our indemnity limit is £10,000,000.

The engineers are experienced heat pump and ventilation specialists and installers of Solar PV, Solar thermal, hot water systems who are also very capable plumbers and electricians. Their qualifications are cumulatively: 



City & Guilds - Plumbing
City & Guilds - Plumbing Sanitary
City & Guild Advanced Plumbing and Heating
BPEC gas fitting competence

Foundation Studies in Construction Plumbing - BPEC Mechanical Engineering Services

Unvented HW Storage Systems

Water Regulatory training

Gas Safe Certified



City & Guilds level 3 Electrical equip maintenance
City & Guilds level 3 Electrical equip inspection

City and Guilds PAT testing

Heat Pumps

Ground Source Heat Pump, Air/Water Heat Pump advanced specialist training with: Thermia, Stiebel Eltron, Viessmann, Nibe, Mitsubushi, Panasonic, Samsung and Hitachi


Bio Mass

Solarfocus Biomass systems
Hetas Training 003 & 004


BPEC Domestic Ventilation System
BPEC Domestic Ventilation Installer

Refrigerant and F-gas

Safe Handling Refrigerant J11-F Gas Cat1
Safe Handling Refrigerant

Health and Safety

Working at Heights

Manual Handling

Level 2 Health and Safety Induction

CHAS Accredited

Asbestos Training & Em1

RECC Renewable Consumer Code