Best Solar Panel Installers UK

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Last Updated on 12th June 2024

Top 10 Best Solar Panel Installers in the UK

Installing solar panels can be one of the best investments you make for your home. Using the sun's limitless energy, solar PV panels can reduce your electricity bills whilst also minimising your carbon footprint. However,finding the right solar panel installer is key to ensuring you maximise the return on investment and long-term performance of your PV system.

Selecting a solar panel installation company that doesn't meet the mark can lead to subpar work, surprise costs, and even solar panels installed that don't quite hit the expected performance levels. To save you the trouble, we've done the groundwork for you. We've sifted through a plethora of both national and regional solar panel companies to pinpoint the cream of the crop, the best solar panel installers across the UK.

In our handy solar guide, we're dishing out our top 10 picks for solar panel installation companies.

These companies serve households all across the UK, and we've evaluated each one based on key factors like their experience, certifications, costs, warranties, insurance, and what their customers have to say about them. Let’s take a look!

RankCompanyOur RatingReview CountIn Business SinceMCS CertifiedInstallation WarrantyTrustpilot Score
1Glow Green⭐⭐⭐⭐⭐8,50020115 Years⭐⭐⭐⭐⭐
2Project Solar⭐⭐⭐⭐3,900200810 Years⭐⭐⭐⭐⭐
3Mypower⭐⭐⭐⭐50020105 Years⭐⭐⭐⭐
4Evergreen Power Solar⭐⭐⭐⭐38020092 Years⭐⭐⭐⭐
5Geo Green Power⭐⭐⭐⭐7020111 Year⭐⭐⭐⭐⭐
6Empower Energy⭐⭐⭐2120072 Years⭐⭐⭐⭐⭐
7Solar Partner⭐⭐⭐2020102 Years⭐⭐⭐⭐
8Joju Solar⭐⭐⭐1020065 Years⭐⭐⭐⭐
9Naked Solar⭐⭐⭐13201010 Years⭐⭐⭐⭐⭐
10Chiltern Solar⭐⭐⭐3201310 Years⭐⭐⭐⭐

Data collected from Trustpilot and is correct as of 05/03/24. Data will be checked and verified every 6 months. Ranking table is based on volume of reviews, review sentiment, review mentions of customer service, expertise, breadth of services offered, coverage area and years of trading.

1. Glow Green

Glow Green⭐⭐⭐⭐⭐8,5002011

With over 12 years of successful trading and 50,000+ satisfied customers, Glow Green stands out as one of the UK's top providers of energy efficient products including solar PV systems.We boast an impressive portfolio offering new boilers, air conditioning, EV chargers, solar batteries, and heat pumps alongside solar.

Our expert account managers provide personalised services tailored to each customer's needs. Our engineers are local, friendly, and deliver hassle-free professional installations. With some of the best warranties and finance options in the market, plus a commitment to quality and sustainability, it's no wonder we’re a leader in our field.

Key Benefits
- Enjoy some of the lowest prices in the UK, ensuring you get the best value for your money.
- Benefit from long warranties that extend up to 30 years, offering peace of mind for decades.
- Take advantage of our free expert advice, provided by knowledgeable professionals ready to assist you.
- Our products come with long manufacturer warranties, guaranteeing quality and reliability.
- We offer excellent finance options to help make your purchase more affordable and convenient.
- Our highly trained local engineers are ready to provide top-notch service and expertise.
- Experience hassle-free installation, designed to make the process smooth and worry-free for you.

2. Project Solar

Project Solar⭐⭐⭐⭐3,9002011

Founded in 2011, Project Solar UK stands as a seasoned veteran in the UK's solar industry, having accomplished over 45,000 successful installations across the country. With roots in Australia and a mission of promoting energy independence, Project Solar is synonymous with quality and reliability. Their offerings include an array of solar panels such as the popular monocrystalline type, noted for its efficiency of up to 21.4% and a maximum power output of 445W.

Project Solar provides national coverage.

3. Mypower


Mypower, established in 2017, excels in the commercial solar panel market across the UK. Their reputation for expertise in surplus solar energy management makes them a top choice. Customers praise their ability to cut operational costs and enhance efficiency, aligning perfectly with sustainable business practices.

Mypower provides national coverage.

4. Evergreen Power Solar

Evergreen Power Solar⭐⭐⭐⭐3802013

Evergreen Power Solar, founded in 2013, has transitioned from a family-run operation into one of the UK’s top national solar providers. They're known for combining affordability with quality in their installations, and cater to both residential and commercial sectors, ensuring each installation is tailored to meet specific energy needs and budget constraints.

Evergreen Power Solar is a nationwide solar panel installer.

5. Geo Green Power

Geo Green Power⭐⭐⭐⭐702010

Established in 2010, Geo Green Power stands out due to its deep commitment to delivering renewable energy solutions tailored specifically to your needs. With a distinct focus on enhancing energy efficiency for both residential and commercial sectors, Geo Green Power ensures you experience significant energy savings. This dedication is backed by a robust 1-year warranty on installations, assuring the longevity and performance of their solar systems.

6. Empower Energy

Empower Energy⭐⭐⭐212010

Empower Energy, a proven leader in the solar industry since 2010, specialises in both residential and commercial installations. Their trained team ensures that every setup uses top-tier components, guaranteeing longevity and efficiency. With a customer-centric approach, Empower Energy provides comprehensive solutions, from in-depth design to final installation, dedicated to exceptional service and sustainable results. Their installations boast robust ratings and are backed by comprehensive warranties, ensuring you receive quality, reliability, and performance in your solar investments.

Empower Energy provides domestic solar installations in the South.

7. Solar Partner

Solar Partner⭐⭐⭐202016

Located close to Milton Keynes, Solar Partner, established in 2016, excels in delivering top-quality solar PV and battery storage systems. They specialise in both residential and commercial installations, ensuring clients receive the best in solar technology, backed by MCS and NAPIT certifications

However, they have limited reach outside the South East region.

8. Joju Solar

Joju Solar⭐⭐⭐102016

Founded in 2006, Joju Solar stands out in the UK's renewable industry for its commitment to sustainable energy solutions. Specialising in community solar projects, battery storage, and EV charging solutions, Joju Solar caters to a diverse clientele. With over a decade-long experience, they deliver reliable and effective renewable energy systems across South East England.

9. Naked Solar

Naked Solar⭐⭐⭐132011

Since its inception in 2011, Naked Solar has focused on transparency and providing top-notch, unbiased advice in solar PV systems installation. Their commitment to excellence has garnered them a prestigious reputation, along with numerous awards that rank them as one of the UK's premier solar installers

Their service region is focused on South West England.

10. Chiltern Solar

Chiltern Solar⭐⭐⭐32011

Chiltern Solar specialises in solar PV systems for residential and commercial purposes. Since 2013, the company has provided expert advice, competitive prices, and holds top accreditations. While their main service area is in the South East, they are recognized for delivering impartial, high-quality solar solutions in the UK. Chiltern Solar's reputation for affordability and professionalism makes them a sound choice for your solar needs, especially if you prefer tailored solutions that focus on sustainability and efficiency

How We Selected the Best Solar Panel Companies

"We started by researching over 100 of the most prominent national and regional solar companies operating across the country. We explored their company histories, offerings, certifications, and customer reviews."

We used a rigorous selection process to identify the top solar panel installation companies in the UK with our goal being to provide homeowners with a trustworthy ranking of the absolute best options for going solar.

Below is some of the key criteria we considered vital and used to rank the top solar installers:

Certification and Accreditation

When it comes to solar installers, certifications and accreditations are paramount. These credentials not only affirm the installer's legitimacy but also signify adherence to industry standards. Top installers will typically hold certifications from the Microgeneration Certification Scheme(MCS), ensuring that they meet rigorous quality and technical guidelines. As such, our top 10 solar panel companies are MSC certified.

Customer Reviews and Testimonials

Customer feedback offers invaluable insights into the reliability and service quality of a solar panel installer. While we looked at overall ratings of each installer, we also delved into specific reviews that detailed customer experiences with installation quality, customer service, and aftercare support.

Ultimately, using TrustPilot, our best solar companies all had a score of 4 or more [out of 5], with consistent customer reviews that shows the installers meet or exceed expectations.

Experience and Expertise

The experience and expertise of an installer can greatly influence the success of your solar panel installation. Companies with a long-standing presence in the industry are often preferred because they have navigated various technical challenges and adapted to evolving technologies.

Therefore, we looked at installers that showcase a diverse portfolio of projects, demonstrating their capability across different settings and scales. That is why most of the installers on our list have residential and commercial experience, as well as at least 11 years in the industry.

a solar panel installer working on a roof

How to Choose A Solar Panel Installer

Choosing the right solar panel installer is crucial for your transition to solar energy. You'll want a partner who stands behind their work with strong guarantees and exceptional aftercare. Below are factors to consider when looking at solar panel companies:

Find Local Solar Installers

Choosing a local solar panel installer comes with a host of benefits such as having a deeper understanding of your region's unique environmental and regulatory landscape, which can speed up the installation process and ensure compliance with local policies. They typically offer more personalised service, which is crucial for a complex technical system like solar panels where ongoing maintenance and support are required.

Also, local installers can leverage their proximity to offer quicker turnaround times for site inspections and maintenance visits, reducing overall downtime and enhancing system efficiency. Their knowledge of local weather patterns also enables them to recommend and implement solutions that ensure maximum energy generation throughout the year.

By working with a local installer, you're also supporting the local economy and reducing the environmental impact associated with transporting materials over long distances. Ultimately, creating a more environmentally friendly landscape.

Research Experience and Qualifications

When choosing a solar panel installer, you should prioritise companies with extensive experience and solid qualifications. Look for certifications such as those from the Microgeneration Certification Scheme (MCS) and check how long they've been in business.

An experienced installer will have a track record of successful projects and satisfied customers, ensuring your installation is handled professionally. Their expertise can also help you navigate potential issues and optimise your solar system's performance, contributing to a more reliable and efficient energy solution for your home.

Get Multiple Quotes to Compare Costs

It's essential to get multiple quotes from different solar panel installers to compare costs and services. By doing this, you can identify significant price differences and understand what each company offers. This step helps you avoid overpaying and ensures you get a fair deal.

Additionally, comparing quotes allows you to assess the scope of work, equipment quality, and potential additional costs, giving you a comprehensive view of what to expect.

Compare Warranties

Comparing warranties is crucial when selecting a solar panel company, as it protects your investment. You should examine the terms of both the equipment and installation warranties offered by different companies. A robust warranty can cover potential defects and installation issues, giving you peace of mind.

Typically, solar panels come with a manufacturer warranty of 20-25 years, covering defects and performance issues. Also, installers often provide a labour warranty, usually ranging from 5 to 10 years, which covers installation-related problems. You should examine the terms of these warranties carefully, ensuring they offer long-term coverage

Verify Insurance Coverage

Before finalising your choice of a solar panel installer, you must verify their insurance coverage. Proper insurance, including liability and employers' liability, protects you from financial liability if accidents or damages occur during the installation process. By verifying insurance coverage, you ensure the installer operates responsibly and professionally, providing extra security for your investment.

person looking at solar panel pamphlet

How To Find A Local Or Regional Installer Near You

  • Use Online Directories: Visit websites like Solar Guide to find certified local installers. Look for installers with high ratings and positive reviews.
  • Ask for Referrals: Talk to friends, family, or neighbours who have installed solar panels and ask about their experiences. Check community boards or local social media groups for recommendations.
  • Search Regional Keywords: Use search engines to look up terms like “solar panel installer [your city/region]” to narrow down the results. Explore the websites of the companies that appear to understand their services and reputation.

What to Avoid When Choosing an Installer

Since we’ve looked at the key considerations when choosing a solar panel installer, it’s important to also mention the common red flags or potential pitfalls that could lead to a less efficient system or inflated costs:

Extremely Low Prices

If you encounter solar panel installers offering costs significantly below the market average, it should raise a red flag. Often, irresistibly low quotes can be signs of potential compromises in installation standards or the use of inferior-quality materials. Installers who cut corners might initially appear cost-effective but can lead to greater expenses and headaches in the future. These could include inefficiencies in energy production or costly repairs and replacements down the line.

To ensure you're making a wise investment, compare price quotes from several reputable installers. A complete breakdown of costs that includes materials, labour, and any additional fees should accompany each quote. This transparency allows you to see precisely how the figures add up, helping you avoid any hidden costs.

Overselling And Not Providing Good Advice

Don't be swayed by high-pressure sales tactics that push you to make a quick decision on the spot. Take your time to research and select an installer who offers transparency, a solid track record and is happy to answer any questions you have.

Who Can Install Solar Panels?

In the UK, it is recommended to use a solar installer who is certified under the Microgeneration Certification Scheme (MCS). The MCS certifies solar installers have received accredited training on the design, installation, set-up, and maintenance of solar photovoltaic (PV) systems.

MCS certified installers include:

  • Licensed Electricians: Electricians experienced in solar energy systems are qualified to undertake the electrical work involved in the installation, including connecting the solar panel kit to your home's electrical system.

  • Accredited Solar Technicians: Those who have completed advanced solar training programmes and exams can receive MCS certification for solar PV installation. This ensures they are experts on solar systems.

  • Renewable Energy Companies: Many companies specialising in renewable energy technologies like solar have in-house installers on staff who hold MCS certification for solar PV.

Other experienced professionals like roofers may also take advanced solar training to gain qualifications for rooftop installations.

However, only MCS certified individuals have validated expertise to correctly and safely install solar panels and connect them to your home's electrical system.

Using properly trained and certified solar installers ensures your solar panel system meets all regulations and standards. It also guarantees high-quality workmanship so your solar investment functions optimally for years to come.

a house with a solar panel and a person looking at that house

Solar Panel Installers FAQs

Do I need a professional to install my solar panels?
Yes, it is highly recommended to use a certified professional such as those accredited by MCS (Microgeneration Certification Scheme), to ensure safety, reliability, and compliance with regulations.

How do I choose a solar panel installer?
To choose a solar panel installer, start by researching local companies with good reviews and check their credentials. It is also good to compare quotes from multiple installers, ensuring they provide detailed proposals.

What is the benefit of choosing a local solar panel company?
Choosing a local installer can offer benefits such as enhanced knowledge of local regulations and conditions, support for the local economy, and typically quicker response times for both installation and aftercare services.

How much does it cost to install solar panels?
In the UK, the cost to install solar panels typically ranges from £4,000 to £8,000 for a standard 4 kW system, suitable for the average home. Though costs vary based on system size, type of solar panels and installation complexity.