Keep Your Biomass and Solar PV Systems Running at Peak Performance
At ESP Energy, we understand how important it is to keep your renewable energy systems operating efficiently and reliably. That’s why we offer expert servicing and maintenance for biomass boilers and solar PV systems across the UK.
Our skilled engineers are trained in the repair and servicing of most major biomass boiler brands and solar PV technologies, helping both domestic and commercial clients avoid costly downtime, maintain performance, and stay compliant with incentive scheme requirements like the Renewable Heat Incentive (RHI).
Our experts can help you decide on the right products for your needs
Biomass Boiler, Heat Pump Servicing & RHI Compliance
If your biomass boiler or heat pump is registered under the Renewable Heat Incentive (RHI) scheme, you are required to have it serviced annually by a certified HETAS engineer to remain compliant with Ofgem regulations.
Our certified engineers perform a full, compliant service and provide all the documentation required for RHI inspections. We also register the service with HETAS at no additional cost.
If faults are identified or replacement parts are needed, we’ll quote, source, and repair with your approval using genuine, manufacturer-approved components.
After every service, you’ll receive a full service report, ready for your RHI audit or records.
What’s Included in a Heat Pump Service:
Our comprehensive heat pump service includes all essential checks:
- Visual inspection of indoor and outdoor units
- Inspection of pipework, insulation, and lagging
- Check for refrigerant leaks and pressure levels
- Inspection and cleaning of filters, coils, and airflow channels
- Cleaning of heat exchanger surfaces
- Test of system temperature sensors and ambient probes
- Check and recalibration of thermostats and room controls
- Testing of flow and return temperatures
- Electrical safety inspection of all system components
- Check of compressor, fans, and motor operation
- Verification of expansion vessel pressure
- Inspection of valves, pumps, and diverter valves
- Check and top-up of system fluid (for ground loops or glycol systems)
- Assessment of noise levels and vibration issues
- System pressure test and top-up if required
- Check for error codes, warning lights, and system alarms
- Full review of control settings and operational logic
- Cleaning of condensate drains and trays (for air source units)
- Issue of service report with performance notes and any recommendations
What’s Included in a Biomass Boiler Service:
Our detailed servicing includes all mandatory HETAS checks:
- Grate and refractory condition
- Wear and tear to internal components
- Cleaning of combustion and mechanical parts
- Gaskets, seals, insulation, fire bricks
- Flue, chimney, gasket, fans, and fuel store inspection
- Heat exchanger and cleaning mechanism
- Sensors: flue gas, lambda, ignition, combustion control
- Pumps, valves (ESBE, pressure relief, 3-way, etc.)
- Safety checks and flue gas readings
- Burn-back flaps, filters, condensation drains, extraction systems
- Lubrication of mechanical elements
- Full boiler controls and system performance review
Register for the Smart Export Guarantee (SEG)
Start earning from exported electricity now.
For Business Owners
Switching to solar PV is a smart move for businesses looking to reduce operating costs and meet sustainability targets. By generating your own clean electricity on-site, you’ll significantly cut CO₂ emissions, reduce reliance on the grid, and demonstrate environmental leadership all while turning unused roof space into a revenue-generating asset through energy savings and export tariffs.
For Homeowners
Installing solar panels at home gives you greater energy independence, helping you become more self-sufficient while protecting yourself from rising electricity prices. By generating your own power and using it when you need it most, you’ll reduce your carbon footprint, lower your monthly bills, and gain real control over your household energy future.
Ready to discuss the next steps?
Our expert team is ready to talk through your requirements.
Solutions proven to work
Biomass District Heating Scheme
FAQs
ESP Energy operates a dedicated maintenance and servicing division that spans the length and breadth of the UK, supporting a wide range of technologies including heat pumps, biomass and gas boilers, solar PV systems, and Combined Heat & Power (CHP) units. We offer flexible service contracts tailored to your operational needs, along with responsive out-of-hours call-outs and ongoing telephone support.
Our approach is centred around reliability, availability, and convenience – we work around your schedule to minimise disruption and ensure your systems continue to perform at their best. In addition, we are registered electricity brokers, with an experienced back-office team that monitors energy markets in real time. This enables us to advise clients on cost-saving opportunities, available schemes, and energy procurement strategies that align with your broader energy goals.
At ESP Energy, we’re proud to have a diverse and highly skilled in-house team that includes roofers, electrical engineers, civil and heating engineers, CAD designers, and refrigeration specialists, collectively bringing over 100 years of experience to every project we deliver.
We complete 99.9% of all work using our own team, ensuring full control over quality, safety, and timelines. Subcontracting is only ever considered in rare cases where a highly specialised task falls outside our core expertise, and even then, it’s only done with your prior agreement and full transparency before the project begins. This approach gives our clients confidence that their project is being handled by people who are accountable, qualified, and fully aligned with our standards.
The first step in our process is to sit down with you, ideally face to face, to gain a clear understanding of your requirements, site conditions, and how your business operates. This initial consultation allows us to assess your energy consumption patterns, review any data or information you have available, and explore your long-term objectives.
We believe that successful projects start with listening, not selling. By taking the time to understand your organisation and energy profile in detail, we can tailor a solution that genuinely aligns with your operational goals and delivers measurable value from day one.
We offer full servicing and maintenance across the UK, covering solar, batteries, chillers, CHP, biomass boilers and heat pumps. Our dedicated team is always on hand for phone support, out-of-hours callouts, and system monitoring, so you can rely on your equipment when it matters most.
And because we’re registered electricity brokers too, we’ll keep an eye on the energy market for you, offering smart advice on tariffs, export schemes, and potential savings.
CHP systems require regular servicing, it also benefits from having a skilled engineer on site to undertake daily and weekly checks and tasks. As the UK’s CHP specialists, we offer comprehensive maintenance plans and stock critical spare parts.