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Checklist: Choosing the right solar panel installer for your home

Maximilian Schwerdtfeger
Written By
Updated on 30 April 2025
  • Understanding the installation process is as crucial as finding the right installer
  • Do your homework to check credentials, track records and customer reviews
  • Always ask for a detailed proposal to make an informed decision
Octopus Energy solar installers
Solar panel installers – pic credit Octopus

Contemplating a solar switch? It’s a smart way to champion sustainability while cutting your energy bills. That’s because solar panel costs are outweighed by the savings on energy bills over time.

While navigating the world of solar panel installations can seem like a bit of a maze, we’re here to help you through it, keeping you informed on how to choose the best solar panel installer for your home or business.

Where do you want to install solar panels?

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Choosing the best solar panel installer should be straightforward, and by following the steps in our simple checklist, it should make the whole process even easier.

You wouldn’t dive into a pool without checking its depth, and the same principle applies to solar panels. It’s not just about who installs them, but what they’re installing – make sure you know exactly what you’re getting.

To begin with, think about your budget, your location and what type of property you have, and whether you’re buying solar panels for domestic use or a business.

Do you know your monthly or annual electricity consumption? Make sure you have one of your recent energy bills handy as this will help installers give you an accurate quote based on your energy needs.

You might also want to consider your future electricity use when it comes to thinking about your installation and how you energy needs might change. For example:

  • Will you have an EV that you’ll want to charge at home?
  • Will you be upgrading your gas boiler to a heat pump in the near future?
  • Would you like a battery with your installation?
  • Will you qualify for the Smart Expert Guarantee, and will you connection to the grid allow you to take full advantage of this?

These are all questions that a good installer will ask.

You will also want to consider if you be paying for the solar panel installation up front yourself, or will you be using a finance option to spread the cost. If so, is this a service that your installer can provide, or will your bank offer you a green loan or mortgage to help keep interest rates low?

Once you’ve got a clear picture, the next steps will be much easier.

Do your homework to understand your options beyond the surface level and delve into the specifics. What brands of solar panels and components does the installer use? Are they from reputable manufacturers known for quality and durability?

And don’t shy away from questions about efficiency ratings. Remember, higher-efficiency panels pump out more electricity, giving you more bang for your buck.

This is critically important.

Look for an installer who’s certified by the Microgeneration Certification Scheme (MCS) – you won’t be able to get money back from your installation via the Smart Export Gaurantee if this is not the case.

Are they also a member of the Renewable Energy Consumer Code (RECC). Being a member of Solar Energy UK is another good sign.

And it doesn’t end there – if your installer plans to use a subcontracting company, make sure they also carry these accreditations.

Finally, dig into their past. A lengthy, documented track record in the business suggests they’ve got the right training and know-how to do the job right.

Where do you want to install solar panels?

Get started

When choosing your solar panel installer, we encourage you to become a sleuth.

Scour the internet for customer reviews and don’t be afraid to ask the installer for references. Hearing from past clients can give you a peek into the installer’s workmanship, customer service, and overall satisfaction level.

Still unsure? Tap into your local grapevine – friends and neighbours can often provide tried-and-true recommendations. Websites like Trustpilot can also offer a wealth of information. Make sure your installer is the talk of the town for all the right reasons!

You wouldn’t want to work with someone careless about important details. So, ask about your installer’s working policies, like how they handle scaffolding. If they’re skimping on basic safety for their workers, that’s as big a red flag as a matador waving at a bull.

And don’t forget to dissect their terms and conditions to know what’s included and what’s off the table. If the installer tries to dodge responsibility for certain key aspects, consider that another red card.

Nobody likes surprises, especially when your energy savings are at stake.

You know when you buy a shiny new gadget and it comes with a solid warranty? That’s the kind of peace of mind you want with your solar panel installation.

Don’t just focus on the ‘here and now’, look ahead too. Ask about the warranties for the panels and the installation work. These are your safety nets, ready to catch any hiccups down the line.

Your after-sales support is like the 24/7 roadside assistance of the solar world, there for any maintenance or future issues. After all, your relationship with your installer doesn’t need to end when the panels are on your roof.

You don’t need to be a solar expert, but understanding the installation process is as crucial as choosing the right installer. Ensure they’re the type to follow best practices, with no cutting corners.

Expect a thorough home consultation, where they assess your property’s specific needs. The installer should then provide a detailed quote, not a hasty estimate, outlining everything involved. And they should also be able to guarantee that their installation meets the relevant regulations and guidelines.

Knowing the process keeps you in the loop and ensures you get a quality, compliant installation. Knowledge isn’t just power – it’s peace of mind.

Someone on a roof fixing solar panels in place

As all canny shoppers know, it’s rarely a good idea to settle for the first price you see. Gather several quotes and see what their costs include: panels, installation, and any other services.

If budget’s a concern, ask about financing. You’ll find options like loans, government grants for solar panels, or leasing programs that can help lighten the load.

By putting in this legwork, you’re not only pocketing savings but also ensuring top-notch service. It’s not just about finding the cheapest deal, but the best value for your hard-earned money.

To find the perfect solar installer, don’t overlook the benefits of going local – sometimes the best solar installers are just around the corner.

A local expert comes with a unique set of perks. They’ll have their finger on the pulse of the specific requirements and regulations in your area. From local permitting processes to unique considerations, they’ve got it covered.

Plus, being nearby means they’re more accessible for maintenance or repairs. You won’t be left hanging, waiting for someone to travel from miles away. So, support your local business and reap the rewards of their knowledge and convenience.

Finally, don’t let aggressive sales tactics or wild (but inaccurate) efficiency claims push you into a hasty decision. Slow and steady wins the race.

Take your time and gather all the information you need upfront, laid out neatly in a proposal. Look for details like a visualisation of the panel layout, product descriptions, and data sheets.

Armed with this knowledge, you can make an informed decision that’s right for you and your home. It’s your roof, your money, your choice – so give it the time and attention it deserves for the best results.

If you want to know more, check our 15 best solar panel installers page, where we’ve reviewed all the major solar panel installers in the UK and found the best ones across 15 different categories, based on customer experience, warranties, coverage and much else.

A solar panel installer

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Answer a few quick questions, and our trusted installers will send you bespoke solar panel quotes – for free.

Ready to go solar? Picking a reputable solar panel installer is key. Look for a solid track record, proper credentials, and glowing customer reviews. And don’t rush!

When you’re ready, pop your details into our web form and our experts will help you kick-start your journey to a greener, sun-powered future. We’ll share some bespoke quotes for the perfect match for your solar needs, free of charge.

Written by

Maximilian Schwerdtfeger

Max joined The Eco Experts as content manager in February 2024. He has written about sustainability issues across numerous industries, including maritime, supply chain, finance, mining, and retail. He has also written extensively for consumer titles like City AM, The Morning Star, and The Daily Express.

In 2020, he covered in detail the International Maritime Organisation’s (IMO) legislation on sulphur emissions and its effects on the global container shipping market as online editor of Port Technology International.

He also explored the initiatives major container ports and terminals have launched in order to ship vital goods across the world without polluting the environment.

Since then, he has reported heavily on the impact made by environmental, social, and governance (ESG) practices on the supply chain of minerals, with a particular focus on rare earth mining in Africa.

As part of this, in 2022 Max visited mines and ports in Angola to hone in on the challenges being faced by one of the world’s biggest producers of rare earth minerals.

His most recent sustainability-related work came much closer to home, as he investigated the eco-challenges faced by independent retailers in the UK, specifically looking at how they can cut emissions and continue to thrive.

Max lives in South London and is an avid reader of books on modern history and ghost stories. He has also recently learned to play the game Mahjong and takes every opportunity to do so. He is also yet to find a sport he doesn’t enjoy watching.

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