Top 10 Solar Installers in the UK 2026
Choosing a solar installer in the UK can feel confusing. Every company says they are reliable, affordable and experienced, but the real question is: who can design the right system for your home and support you after installation? Solar panels can be a smart long-term investment, but the installer you choose can affect everything from roof design and system performance to paperwork, savings and aftercare.
In this guide, we compare well-known UK solar installers such as BOXT, Simple Green Energy, Heatable, Solar4Good and Glow Green, while also explaining what customers should check before making a decision. The “best” solar installer is not the same for everyone. It depends on your property, roof size, budget, location and the level of aftercare you need.
Quick Answer: Who is the best solar installer in the UK?
The best solar installer depends on your roof, budget, location and aftercare needs. Well-known UK options include BOXT, Simple Green Energy, Heatable, Solar4Good and Glow Green. Before choosing, compare reviews, accreditations, warranties, survey quality, system design and ongoing customer support.
What Makes a Good Solar Installer in 2026?
A good solar installer does more than fit panels on your roof. They should be properly accredited, honest with pricing, clear about warranties and able to design a system around your home, energy use and budget. In 2026, customer service, aftercare and MCS certification matter just as much as the solar panel brand.
Before choosing an installer, check:
- MCS certification — this shows the installer meets recognised UK standards for small-scale renewable systems.
- Product quality — panels, inverters and batteries should come from trusted manufacturers.
- Installation workmanship — a neat, safe installation protects your roof and system performance.
- Survey process — the quote should be based on your roof, shading, usage and property layout.
- Battery storage knowledge — the installer should explain whether a battery is worth it for your home.
- Clear quotations — pricing should show what is included, not hide extras.
- Warranty and aftercare — check product warranties, workmanship cover and post-installation support.
- Real customer reviews — look for consistent feedback on service, communication and problem solving.
- Local or UK-wide coverage — choose a company that can support your area properly after installation.
Quick Comparison of the Top 10 Solar Installers
| Rank | Installer | Best For | Coverage | Key Strength | What to Check |
|---|---|---|---|---|---|
| 1 | BOXT | Fast online solar quotes | UK-wide | Simple digital quote process | Survey detail and aftercare terms |
| 2 | Simple Green Energy | Personal service and tailored installs | UK-wide | Local support and practical advice | Warranty and aftercare response |
| 3 | Heatable | Online solar and battery pricing | UK-wide | Clear online design and pricing | Final survey and installation dates |
| 4 | Solar4Good | Customer service and solar PV installs | UK-wide | Strong customer feedback | Warranty and aftercare response |
| 5 | Glow Green | Solar, batteries and home energy upgrades | UK-wide | Recognised home energy brand | Quote detail and product options |
| 6 | Sunsave | Subscription-style solar and long-term support | Selected UK areas | Strong accreditation profile | Contract length and ownership terms |
| 7 | Project Solar UK | Established national installer | UK-wide | Large review base and experience | Pricing, sales pressure and support |
| 8 | Effective Home | Solar with battery storage options | UK-wide | Partner network and installation scale | Lead times and communication |
| 9 | Fresh Electrical Solar | Domestic and commercial solar | UK-wide | MCS-accredited solar and battery installs | Local installer availability |
| 10 | Joju Solar | Experienced solar and battery design | UK-wide / project-led | Long-standing renewable installer | Cost, timescale and project fit |
UK’s Top 5 Brands Compared
1. BOXT
BOXT is a recognised UK home energy brand offering solar panel and battery storage solutions, with an online quote journey designed to make the first step simple. Its solar page promotes online quotes, bespoke solar designs, MCS accreditation, finance options and packages for solar panels, batteries or both.
Best for: Homeowners who want a fast online quote, national brand visibility and a streamlined booking process.
Things to check: Before choosing BOXT, confirm the final roof survey, panel and inverter options, battery suitability, workmanship guarantee, manufacturer warranties, finance terms and how aftercare is handled after installation.
2. Simple Green Energy
Simple Green Energy is a practical UK home energy company helping homeowners improve their properties with solar PV and wider energy-saving solutions. Based in the West Midlands, SGE works with customers across areas such as Birmingham, Wolverhampton and beyond, offering support that goes further than panels alone.
Best for: Homeowners who want solar advice linked with wider property improvements.
SGE can help customers think about roof suitability, electricity usage, battery storage, EV charging, heat pumps, insulation and EPC/retrofit improvements where relevant. This joined-up approach is useful for people who want their solar installation to fit into a bigger long-term energy plan, not just a one-off upgrade.
Service strengths:
Solar PV, battery storage, heat pumps, EV chargers, insulation, EPC support and retrofit advice.
3. Heatable
Heatable is a UK home energy installer known for making solar and battery storage easier to price, design and book online. Its solar journey lets homeowners answer property questions, outline roof space and view estimated savings before moving to a full design stage.
Best for: Homeowners who want a quick, digital-first solar quote and a clear package-style buying process.
What to check:
Before choosing Heatable, customers should confirm local installation coverage, the final roof design, battery size, panel choice, workmanship warranty, MCS certification and who will complete the installation.
4. Solar4Good
Solar4Good is a UK solar installation company offering solar PV and battery storage for homes and businesses. They are listed for MCS solar PV and battery storage work, which is a useful trust signal for customers comparing installers.
Best for: Homeowners who want a solar-focused installer with battery storage options and a clear support route.
Solar4Good may suit customers who want a dedicated solar provider rather than a wider home energy company. Their support page lists contact options for solar installation help, including phone and email support.
What to check:
Before booking, confirm your local installation coverage, final roof design, battery size, product warranties, workmanship cover and which accredited installer will complete the work.
5. Glow Green
Glow Green is a UK-wide home energy installer offering solar PV, boilers, EV chargers, battery storage and heat pumps. Its solar service is positioned around making the switch easier, with support from quote stage through to installation.
Best for: Homeowners who want a national installer with multiple home energy services under one roof.
What to check:
Before booking, confirm the final quote, panel and battery models, roof survey results, warranty terms, installer accreditation, workmanship cover and aftercare process.
Solar Installer Comparison: Customer Service, Installations and Aftercare
The best solar installer is not always the one with the lowest quote. Solar panels are a long-term investment, so customer service, installation quality and aftercare matter just as much as price. A good installer should explain the system clearly, complete the paperwork properly and still be available once the panels are fitted.
| Customer Service | Installation Quality | Aftercare and Warranties |
|---|---|---|
|
Clear, helpful communication
A good installer should respond quickly, explain the quote clearly and avoid pressure selling. The survey process should feel helpful, not rushed, with support before and after installation. |
Safe, neat installation
A quality installation starts with a proper roof survey. The installer should use safe fixing systems, follow electrical standards, route cables neatly and place the inverter or battery sensibly. |
Support after the system goes live
Strong aftercare gives peace of mind. Check product warranties, workmanship cover, app monitoring support, fault reporting and whether the company gives maintenance advice after installation. |
|
What to look for
Look for honest answers, clear timelines, simple explanations and realistic saving estimates. |
What to look for
Look for tidy workmanship, safe commissioning and a system designed around your roof and energy use. |
What to look for
Look for easy contact, clear warranty documents and support if the system stops performing as expected. |
What Accreditations Should a Solar Installer Have?
Homeowners should usually choose a solar installer with the right certification, strong consumer protection, proper insurance and clear workmanship warranties. MCS certification is especially important because it is widely recognised as a UK quality mark for small-scale renewable installations. It helps show that the installer and system meet accepted standards.
Quick Solar Checklist:
- MCS certification — important for quality, compliance and export tariff eligibility.
- Certified products — panels, inverters and batteries should meet recognised standards.
- Consumer codes — these help protect customers from poor sales practices.
- Electrical competence — solar work must be installed and tested safely.
- Manufacturer training — trained installers understand the products they fit.
- Insurance cover — this protects you, your property and the installer.
- Workmanship warranty — this covers the quality of the installation, not just the equipment.
A trustworthy installer should be happy to show proof of certification, explain what each warranty covers and make the paperwork easy to understand.
Common Mistakes When Choosing a Solar Installer
A cheap quote can look attractive, but the wrong installer can cost more in the long run. Before you book, watch out for these common mistakes:
- Choosing only the cheapest quote without checking what is included.
- Not confirming whether the installer is MCS certified.
- Failing to compare panel, inverter and battery models.
- Ignoring roof shading, direction or available roof space.
- Adding a battery without checking if it suits your usage.
- Not reading product and workmanship warranty terms.
- Forgetting to ask whether scaffolding is included.
- Not checking if DNO notification or approval is needed.
- Assuming every installer offers the same aftercare.
- Believing exaggerated savings claims without clear calculations.
A reliable installer should explain the design, paperwork, savings estimate and aftercare clearly before you sign anything.
Frequently asked questions (FAQs)
Simple answers to common questions about choosing solar installers in the UK, comparing quotes, checking MCS certification, understanding costs and finding the right installer for your home. Speak to Simple Green Energy.
Need help choosing a solar installer?
Speak with Simple Green Energy about solar PV, battery storage, MCS paperwork, roof surveys, quote comparisons and choosing the right solar setup for your home.
Get solar adviceFinal Thoughts: Which Solar Installer Should You Choose?
The best solar installer is the one that fits your home, not just the one with the lowest price. Your roof size, shading, energy use, budget, battery needs and aftercare expectations all matter. Use this Top 10 Solar Installers list as a starting point, then compare quotes carefully, check MCS certification, review warranties and ask how the system will be designed for your property.
A good installer should make solar feel simple, not confusing. Choose the company that explains the design clearly, answers your questions honestly and gives you confidence before, during and after installation.
Ready to explore solar for your home? Start by requesting a clear, no-pressure quote and comparing your options side by side.
