S4 Integrated Roof Solar Mounting System
Manufacturer trained installation. independently accredited innovation.
S4 Mounting System fits all roofing types
As the demand for renewable energy continues to grow, property owners are increasingly seeking solutions that combine outstanding performance with exceptional aesthetics. S4 Integrated Solar is one of the UK’s most innovative roof-integrated solar systems, offering a seamless roofing solution that generates clean energy while maintaining the architectural integrity of the building.
At Green Squirrel Energy, we are committed to delivering this advanced technology to the highest possible standard. Our installation teams are fully trained by the S4 technical team, ensuring every project is completed in accordance with the exacting standards expected by the manufacturer and the wider construction industry.
Specialist Training by the S4 Team
Unlike conventional solar installations, roof-integrated systems require specialist knowledge of both roofing and photovoltaic technologies. To ensure the highest levels of workmanship, Green Squirrel Energy installers undertake dedicated manufacturer training delivered by S4. This comprehensive programme covers:
- System design and planning
- Roof integration and weatherproofing
- Mechanical and electrical installation
- Compliance with current UK building and electrical regulations
- Health and safety procedures
- Quality assurance and commissioning
This specialist training ensures that every installation is completed using approved methods, protecting roof integrity, maximising energy generation and delivering long-term reliability.
Independently Accredited and Industry Recognised
S4 Integrated Solar has been developed to meet the rigorous requirements of the UK construction and renewable energy sectors. The system benefits from recognised third-party assessment and certification, providing confidence for homeowners, developers and commercial clients.
MCS 012 Certification:- S4 Integrated Solar is certified to the MCS 012 standard for roof mounting systems. This recognised UK certification demonstrates that the system has been independently assessed for:
- Structural integrity
- Mechanical performance
- Weather resistance
- Durability
- Suitability for roof-integrated photovoltaic installations
MCS certification is an important benchmark within the UK renewable energy industry and provides assurance that the mounting system has been tested against demanding performance criteria
Battery
Storage
Three Phase
Electrical Supply
Heat
Pumps
BBA Assessed for NHBC Compliance
The S4 system has also achieved British Board of Agrément (BBA) assessment supporting compliance with NHBC Standards. The BBA is one of the UK’s leading independent certification bodies for construction products and evaluates products for:
- Fitness for purpose
- Product durability
- Weatherproofing
- Construction quality
- Long-term performance
This independent assessment provides additional reassurance for housebuilders, developers, architects and specifiers seeking trusted roofing solutions.
Designed Around International Standards
S4 Integrated Solar is engineered to work alongside photovoltaic modules that comply with internationally recognised standards, including:
- IEC 61215 – Photovoltaic module performance and durability testing
- IEC 61730 – Photovoltaic module safety qualification
- BROOF fire classifications where applicable with approved panel combinations
These internationally recognised standards help ensure safe operation and reliable long-term performance in demanding environmental conditions. S4 Integrated Solar is One of the UK’s Most Innovative Roof-Integrated Solar Systems
Seamless Roof Integration
Unlike traditional solar panels that are mounted above existing roof coverings, S4 Integrated Solar forms part of the roof itself, creating a flush, elegant appearance.
A Dual-Purpose Roofing System. S4 functions as both a weatherproof roof covering and a renewable energy generation system, reducing the need for duplicate building materials while creating a highly efficient building envelope.
Benefits include:
- Low-profile aesthetic
- Enhanced kerb appeal
- Reduced visual impact
- Suitable for both new build and retrofit projects
Exceptional Weather Protection
Designed specifically for the UK climate, the S4 system provides robust protection against:
- Heavy rainfall
- Wind uplift
- Snow loading
- Seasonal temperature changes
Its integrated flashing and drainage design help maintain the long-term integrity of the roof structure.
High Performance with Long-Term Reliability. The combination of advanced engineering, independent certification and specialist installation training helps deliver a solar roofing system built for decades of dependable performance.
Supporting Sustainable Construction
S4 Integrated Solar contributes to the transition towards low-carbon buildings by enabling homes and commercial properties to generate clean electricity directly from the roof structure.
This helps property owners to:
- Reduce carbon emissions
- Lower energy costs
- Improve building energy performance
- Support net-zero and sustainability objectives
The Green Squirrel Energy Commitment
At Green Squirrel Energy, we believe that the quality of installation is just as important as the quality of the product itself.
Our partnership with S4 ensures that every installation is carried out by manufacturer-trained professionals who understand the technical requirements of the system and are committed to delivering the highest standards of workmanship.
Our customers benefit from:
- Manufacturer-trained installation teams
- Industry best practice
- Attention to detail at every stage
- Compliance with recognised standards
- Professional project management
- Ongoing technical support and customer care
Building the Future of Solar Roofing
S4 Integrated Solar represents the next generation of renewable roofing technology, combining architectural design, advanced engineering and sustainable energy production in a single integrated solution.
By pairing one of the UK’s most innovative roof-integrated solar systems with the specialist expertise of Green Squirrel Energy’s manufacturer-trained installation teams, we provide homeowners, developers and businesses with a solution that delivers outstanding aesthetics, proven performance and long-term value.
Green Squirrel Energy is proud to work alongside S4 Integrated Solar to help build a cleaner, more sustainable future—one roof at a time.
We are passionate about customer satisfaction
As seen independently on Google reviews
EXCELLENT
Based on 17 reviews
Posted on Google![]()
Jen KTrustindex verifies that the original source of the review is Google.
I honestly can’t recommend Green Squirrel Energy highly enough! From the very first survey, I felt like I was dealing with people who genuinely cared about doing the job properly rather than just making a sale. After discovering our roof had been poorly installed by another company, they took the time to explain everything clearly, showing us exactly what was wrong and why it needed replacing. There was never any pressure—just honest, professional advice that gave us complete confidence in their recommendations. The workmanship has been absolutely outstanding. Our new roof looks beautiful, and the integrated solar panels are so sleek that they blend in perfectly. The team also installed a Tesla Powerwall and handled all of the complicated electrical upgrades, including liaising with the DNO and sorting out the export limitation process. They made what could have been a very stressful experience completely hassle-free. Every member of the team was friendly, respectful and incredibly hardworking. They kept us informed throughout the project, left everything tidy each day, and their attention to detail was second to none. We now have total peace of mind knowing our home is protected by a properly installed, high-quality roof, and it’s wonderful seeing our electricity bills reduce while generating our own clean energy. If you’re looking for a company that values quality, honesty and customer service, Green Squirrel Energy is the one to choose. Thank you to everyone involved—you’ve completely transformed our home, and I wouldn’t hesitate to recommend you to family and friends!Posted on Google![]()
MITrustindex verifies that the original source of the review is Google.
Recently had a Worcester Bosch air conditioning system installed and I'm really happy with it, installation was carried out professionally, with great attention to detail. Anthony, Alan and the guys were great from start to finish, they took pride in delivering a first-class installation. Had it for over a week now and It’s made a huge difference to my room and the upstairs area, delighted with both its performance and the quality of the installation. A special mention also goes to the Green Squirrel Energy Project Manager, who was communicative throughout, kept me informed every step and worked hard to find the right solution during a period when there was an equipment shortage. Especially in the summer where there is demand and waiting lists elsewhere, they gave me a date within 2 weeks and kept their promise, their commitment to customer service and problem-solving really stood out. Overall, an excellent experience! Highly recommend them to anyone considering air conditioning installationPosted on Google![]()
Callum CoffinTrustindex verifies that the original source of the review is Google.
We recently had Green Squirrel Energy install a Mitsubishi heat pump and new hot water cylinder, allowing us to go completely gas-free. They also upgraded our house to three-phase power and installed new consumer units, supporting our Tesla Powerwall and future electrical needs. The team was professional, knowledgeable and a pleasure to deal with. The workmanship was excellent and everything was completed on schedule. We’re delighted with the result and wouldn’t hesitate to recommend Green Squirrel Energy. The quality and attention to detail has been outstanding.Posted on Google![]()
David K-RTrustindex verifies that the original source of the review is Google.
Outstanding Air Conditioning Installation in High Legh – A Five-Star Experience. We recently had air conditioning installed in our family home in High Legh by Green Squirrel Energy, and we genuinely couldn’t be happier with the entire experience. From the very first enquiry, the team were professional, friendly, and incredibly knowledgeable. They took the time to understand our home, our needs as a family, and how we wanted to use the system throughout the year. Nothing felt rushed or pushed – just honest advice and clear guidance. The installation itself was carried out to an exceptionally high standard. The engineers were punctual, respectful of our home, and worked with real care and attention to detail. Every aspect of the job was completed with precision, and the finish is absolutely flawless. You can tell straight away that they take real pride in their workmanship. What really stood out to us was their reliability. Everything happened exactly when they said it would – from initial survey to installation day. Communication was excellent throughout, and we always felt informed and confident in the process. The system itself has transformed our home. It’s quiet, efficient, and provides perfect comfort for the whole family, whether we’re cooling down in the summer or adding a bit of warmth in the colder months. Green Squirrel Energy delivered not just a service, but a genuinely outstanding experience. Their professionalism, reliability, and exceptional workmanship set them apart, and we wouldn’t hesitate to recommend them to anyone considering air conditioning installation. A truly five-star company.Posted on Google![]()
ROBERT SYMONSTrustindex verifies that the original source of the review is Google.
“We recently bought a new home that needed a complete renovation, and we wanted to create a highly energy-efficient property with integrated underfloor heating, solar panels, battery storage and an air source heat pump. Green Squirrel Energy designed and installed the entire system, and the experience has been fantastic from start to finish. The team were professional, knowledgeable and easy to work with, coordinating everything seamlessly during the renovation. The quality of workmanship has been excellent, and we’re delighted with the finished result. I wouldn’t hesitate to recommend Green Squirrel Energy to anyone looking for a complete renewable energy solution.”Posted on Google![]()
Tessa YatesTrustindex verifies that the original source of the review is Google.
When my gas boiler broke down and was not worth repairing I knew it was time to investigate an air source heat pump. I have a dormer bungalow built in 1962. 5 months before I had installed a new insulated roof, solar panels and a 9kW battery so a heat pump is in line with my eco values. I had 3 quotes and each one suggested that a different level of work was required concerning changing the pipework and radiators. Alan from Green Squirrel’s approach made the most sense to me. He was recommended to me by Octopus. From the beginning he was highly attentive. He understands the importance of the quality of the install in order for the heat pump to work well. Alan invested many hours in the planing stage before I gave him the job. He appreciated the huge financial investment so was keen for me to understand how this system works and to ensure that my home was made suitable. The whole team were outstanding and the work was completed in the time quoted. As I needed new pipework there was some disruption but all was made as easy as possible. I felt that both Alan and Simon, the engineer, really wanted me to be happy with all the work and for everything to work well. So far the heat pump is working perfectly though I have not had my first winter yet. I have felt very happy with the after install service as Alan has kept in touch and encouraged me to contact him with any questions or issues. I have no difficulty in recommending their work.Posted on Google![]()
Greg MajorTrustindex verifies that the original source of the review is Google.
I recently had a full renewable energy system installed by Green Squirrel Energy at my house in Lymm. I first reached out to Alan at Green Squirrel about 9 months before I actually needed anyone on site. It was right at the start of a full house renovation and, even at that early stage, I could tell they were the right fit. Alan didn’t just give me a generic quote; he went away, had the proper calculations done, and worked through a solid plan for the property. We had a bit of back and forth on the final design—which I really appreciated—because it meant we landed on a setup that actually suited the house rather than a "one size fits all" solution. The project was massive: Solar, Powerwall 3, a full heating system, including a heat pump and underfloor heating throughout the downstairs. The installation was handled by Simon and his team, and they were great. If you’ve ever done a big renovation, you know how much of a headache it is coordinating different trades, but the Green Squirrel guys worked brilliantly with my builder to keep things on track. They weren't just in and out; the quality of the finish was clearly important to them. Now that the dust has settled and the longer days are finally here, the system is performing exactly as Alan promised. The house is perfectly comfortable year-round (the underfloor heating is a game-changer), and seeing the solar and battery kick in now the sun is out is a great feeling If you want renewable tech installed by a local firm that are knowledgeable, high quality and actually seem to care, I’d highly recommend Green Squirrel.Posted on Google![]()
Andy BaconTrustindex verifies that the original source of the review is Google.
Alan and his team did a fantastic job for us. The advice was sound, the work well planned and expertly delivered by considerate professionals. There was none of the common heavy sales patter, instead considered unpressurised advice. Alan went out of his way to advise on any (occasional and unavoidable) changes to plan. He also managed the project between the different parts of his team (e.g. roofers, electricians, etc.). I would have no hesitation in recommending him and the Green Squirrel team.Posted on Google![]()
Paul SherryTrustindex verifies that the original source of the review is Google.
Very good advice and support from Green Squirrel Energy. Background to this - heat pump installed in 2012 (fairly early adopter). The heat pump has always worked ok - in my view - but I have not been so confident in the control system. We have struggled to get house warm. With increasing frustration with the lack of F2F support from original installer I searched online to see if anyone locally and found Green Squirrel Energy from Knutsford (we live close). Contacted them more in hope than expectation - but they quickly phoned back and I engaged them to do a diagnostic on the system. Simon came to visit and they came up with a plan to improve - which wasn't going to be cheap...but I was up for that. Credit to them - they discussed amongst themselves and came to the view that although their proposal was perhaps ideal, it was difficult to guarantee the outcome given the original install. They then came up with a more cost effective solution with which I agreed to proceed. Credit to them that they didn't try to sell me the most expensive solution.... The solution was a new (Hive) control system which Simon and their electrician installed in a morning. I have also installed Hive TRV's on all the radiators. (I should also mention that as part of this work I have also undertaken a DIY change to 2 downstairs radiators and have installed a Strada Hybrid - so I also need to give a 'shout out' to David and his team at the Radiator Centre, Leamington Spa) Alan and Simon also took the time to educate me on how to get the best out of air source heat pump system by leaving it running 24/7 - I was treating it like a gas fired central heating system, but no-one had ever told me different. The result has been transformational - we now have a comfortably warm home for the first time in 13 years. Yes it's costing some money to run, but we were spending a fair amount before and weren't warm... I am very pleased with the service and support we have had from Alan and Simon and give them respect for coming up with a more cost effective solution when they could have sold me something more expensive.Posted on Google![]()
Anne MarshallTrustindex verifies that the original source of the review is Google.
I used Green Squirrel as a one stop shop for the design and installation of my underfloor heating system combined with an Octopus air source heat pump. The whole process was very efficiently managed . The installers and technical leads, Simon Fagan and Andrew Hassell worked very efficiently on the install, showing me how everything worked and demonstrating the Octopus app (which is, like everything I have dealt with from Octopus, absolutely fab!). I am looking forward to a very cosy winter in my new house. Many thanks to you all.Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more

