A measured assessment
Recommendations shaped around you and your home - no assumptions.
Book a professional home energy survey with Dr. John Rowlatt, Chartered Engineer and Doctor of Energy. Get clear, jargon-free advice shaped around your home, so you can move forward with confidence.
Hear directly from the engineer behind the survey and how the process helps homeowners make more confident decisions.
Dr. John
Chartered Engineer (MCIBSE)
Doctor of Energy & Sustainable Development
If you are considering solar panels, battery storage, EV charging or a heat pump, most homeowners struggle to find an installer that they trust.
Receiving quotes before your home is properly assessed leaves you guessing, creating unnecessary anxiety about wasting such a large investment.
This survey is designed to give you a clearer view of your options, with advice based on your home and lifestyle, rather than a generic sales process offering just one product.
Recommendations shaped around you and your home - no assumptions.
Clear advice you can understand and use.
Useful now, or in the future.
Your survey is carried out by Dr. John, a Chartered Engineer with over 3 decades of specialist expertise in home energy systems.
He begins by looking carefully at the property itself, how it performs, where energy may be escaping (or being poorly used), what the home is likely to need, and how different technologies will work together in practice.
The result is clear advice based on engineering judgement, decades of practical experience and critical assessment.
A proper survey needs a qualified expert to be accurate. Rather than just handing you a quote, an experienced engineer will interpret the data and leave you clear and understandable step-by-step delivery plan of exactly what your home needs.
We assess how the property performs, so recommendations are based on real conditions rather than assumptions.
This may include thermal checks, measurements, and a review of how the home uses and loses energy.
We help you understand what makes sense for the property both now and in the future. Modular designs mean you are not paying for more than you need.
You receive practical advice in plain English, so your options feel clearer and easier to compare.
You receive a clear handover summary, whether you continue with Renergy or simply want a well-informed second opinion.
The survey is supported by specialist calibrated equipment and a structured engineering process, so decisions are based on precisely measured information rather than rough EPC heat loss estimates or satellite roof images, which often result in over-sized heat pumps or wasted roof space.
Used to understand how the property is performing and where energy may be escaping.
A structural survey report is provided with every solar survey and design.
Where relevant, electrical systems can be reviewed to assess practical suitability.
The real value is knowing the findings are interpreted by an experienced engineer.
The £250 fee reflects the time, expertise and survey work involved in giving you a proper assessment in addition to the bespoke engineer–led design output being created.
If you choose Renergy Solutions for the installation, the full £250 is deducted from your final bill.
If you decide to go elsewhere, you still keep the survey summary and recommendations, so you can move forward with more clarity.
A second opinion can make the next step much clearer
If you would like to explore case studies, qualifications and technical guides before enquiring, you can view the full downloads page here.
This includes homeowner case studies, supporting guides and professional credentials from Dr. John.
With BS7671 recently becoming law, all solar companies will likely recommend you to install a battery in a place where it will struggle to work properly over winter.
I have created interactive tool that explores how battery temperature and charging conditions affect performance and value achieved using two of the most common tariffs utilised. This tool highlights the importance of good surveying & engineering design for your system.
My engineering survey process is designed to work with you to ensure you get the best returns and do not potentially lose hundreds of pounds a year in value to a poor system design.
Tell us a few details and we will be in touch to discuss your property and whether the survey is the right next step.
Tell us a few details and we will be in touch to discuss your property and the next step.
Yes. If you proceed with Renergy Solutions, the full £250 is deducted from your final bill.
No. The survey is designed to give you useful clarity whether you continue with Renergy or not.
The survey is led by Dr. John Rowlatt, Chartered Engineer and Doctor of Energy.
Yes. You will receive a diagnostic summary outlining the key findings and recommended direction.
Bespoke renewable energy installations across the UK. We install Solar PV, Battery Storage, Heat Pumps, EV Charging and Air Conditioning.
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"I just wanted to say a huge thank you for all you have done to help me determine the best system for our house, budget and use case. Your detailed knowledge and advice were extremely helpful and I am delighted with the installation."