Compare solar panel installation quotes and costs
Thinking of going solar? Our new comparison tool is now live, along with expert advice to see how much you could save and how the process works.
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Get personalised solar quotes with Uswitch
UK homeowners are keen to take back control of their energy and protect themselves from high energy bills, and many see solar panels as a key way to do so. Uswitch research has found that three million households plan to get solar panels in the next five years for just that reason.
However, between unclear savings claims and the time-intensive task of vetting installers, finding the right solar system feels like a full-time job.
Uswitch is different. Our transparent, streamlined journey puts you in control so you can shield your energy bills with an easy-to-use system tailored to your home and lifestyle.
- Transparent pricing: View personalised quotes and system specs side-by-side.
- Zero pressure: Compare in your own time. You decide which installer you want to speak with.
- Vetted experts: We only work with MCS-certified installers like Heatable, Glow Green, and Sunsave.
How much do solar panels cost in the UK?
Solar panel prices vary based on panel quality and system size but currently range from around £4,600 to £8,000. Below are the approximate averages for systems without batteries, based on the installers we work with:
| System size | Average system cost* | Typical household size |
|---|---|---|
| 2kW system | £4,600 – £5,800 | 1-2 people |
| 4kW system | £5,000 – £7,000 | 3-4 people (most common) |
| 6kW system | £6,000 – £8,000 | Large families (or those with EVs who charge at home) |
*As of 9 September 2026
How solar panel installation works
Solar panel installation is a simple process.
Scaffolding goes up
Scaffolding will be needed to ensure the safety of the people working on your roof. It will usually be set up the day beforehand. It may be taken down as quickly as possible once the solar panels have been installed, but it may be left up for a couple of weeks in case any issues arise that need fixing.
Roof is prepped
Mounting brackets will be secured to your rafters. These hold the rails that the panels themselves are attached to so they can withstand high winds and stormy weather.
A few tiles will need to be lifted for access, but these will be replaced as much as possible (without compromising your roof's watertightness).
Panels are installed and inverter is connected
The solar panels are bolted to the rails and wired together. Cables are run from the panels to the inverter so the power from the panels can be converted for home use.
System is tested
The installers will test the system to make sure the panels and working properly and the electricity generated is being converted for use in your home. This process is sometimes called "commissioning".
They will then hand the system over to you with all relevant documents (such as your MCS certificate) and instructions included.
Is the installation process different for ground-mounted panels?
The installation process for ground-mounted solar panels doesn't differ hugely in terms of mounting and connecting the panels. The main difference is that foundations and trenches for cabling will need to be dug, which could cause more significant disruption to your outside space. It may also take slightly longer than a roof panel installation.
How long does solar panel installation take?
Most of the work of solar installation can be done in one day. Scaffolding work may take another couple of days on either side of the installation.
How do I choose a solar panel installer?
A reputable solar panel installer should be part of the Microgeneration Certification Scheme (MCS). This is a government-backed scheme which ensures installers are properly qualified.
You should also get quotes from more than one installer, which is why the Uswitch comparison is so helpful - without it, you'd have to get the quotes individually.
Which solar panel installers do we work with?
We only work with installers who meet our high standards for quality, certification, and customer service. Each of our partners is MCS-certified, ensuring your system is safe, efficient, and eligible for the Smart Export Guarantee (SEG).
Glow Green
Glow Green is one of the UK’s most popular choices for home energy upgrades. It is known for its efficient, streamlined installation process and competitive pricing.
- Best for: Homeowners looking for a tech-driven, hassle-free installation experience.
- Why we trust it: It offers flexible financing options and has a strong reputation for clear, transparent communication from start to finish.
Sunsave
Sunsave is making solar accessible to everyone by removing the barrier of high upfront costs. It is the UK’s first provider to offer a solar subscription, allowing you to pay a monthly fee rather than a lump sum.
- Best for: Homeowners who want a "Solar-as-a-Service" model that includes ongoing monitoring and maintenance.
- Why we trust it: Its Sunsave Plus plan is a game-changer for accessibility, backed by a commitment to long-term system performance and customer support.
Heatable
Heatable is a family-run business with full national coverage. It uses a highly advanced digital platform to provide fast quotes while maintaining the personal touch and accountability of a family-owned brand.
- Best for: Nationwide reach with a personal, reliable feel.
- Why we trust it: Its no-hassle approach and extensive volume of verified five-star customer reviews.
How to compare solar deals on Uswitch
We’ve simplified the process into four easy steps. Here is how it works:
- Tell us about your home
Answer a few simple questions about your roof and energy usage, no technical expertise required.
- View your personalised quotes
We’ll show you tailored quotes from our trusted partners so you can see exactly what you'll get for your money.
- Compare in one place
Review warranties, panel efficiency, and total costs side-by-side in a clear, easy-to-read format.
- Book your free consultation
Once you’ve picked the best option for you, your chosen installer will carry out a professional home and design review over the phone.
How do you pay for solar panels?
Solar panels are expensive, but you don't always need the full amount up front. Here are three paths that you should consider when buying solar panels:
- Outright purchase
The fastest way to see a Return on Investment (ROI), as there are no interest costs.
- Green mortgages & loans
Many UK banks now offer lower interest rates for green home improvements.
- Fixed-term payment plans
Many installers offer the ability to spread the cost over 3 to 10 years. While these carry standard interest rates (APR), they allow you to go solar immediately and lock in your energy price protection.
Will solar panels help lower my bills?
Yes, and for most households, the savings are significant. Solar helps you save money in three distinct ways.
- Reduced reliance on the grid
Every unit of electricity your panels generate is a unit you don't have to buy from your energy supplier. By self-consuming your own solar power, you are effectively locking in a portion of your energy costs at 0p per kWh for the next 25 years.
- Earning through exports
Through the Smart Export Guarantee (SEG), energy suppliers will actually pay you for the leftover energy you don't use. It acts as a steady offset against your standing charges and any night-time energy use.
- Maximising savings with a battery
Without a battery, you have to use it or lose it. By adding a solar battery, you can store the free energy you generated at midday and use it at 7pm when grid prices are at their peak. This can often double your annual savings compared to panels alone.
What's the average solar panel return on investment?
The average solar panel ROI is dependent on a range of variables, including:
- How much you pay for the panels
- Where you live
- How much energy you use
- How much energy you generate
- How much energy you export.
It could take anywhere between seven and 10 years to break even. However, there are benefits in the meantime, such as protection against global conflicts causing energy price spikes.
Why trust Uswitch for your solar journey?
With a Trustpilot score of 4.7/5, Uswitch is the UK’s most trusted comparison service.
We work with accredited installers
Every partner we work with must be MCS-certified, ensuring your system is safe and eligible for export payments.
Privacy first
We don't sell your data to third parties. We only connect you with the specific installers you choose.
Impartial advice
Our goal is to help you find the right fit for your roof and budget, not to push a specific brand.
How do solar panels work?
Solar panels convert daylight into electricity, reducing your reliance on the National Grid and cutting your monthly bills. They are made of silicon and work on light, not just heat, so while they are most efficient in direct sun, they still generate power on cloudy UK days.
There are two types of solar panel:
- Solar PV (Photovoltaic): The most common choice. These power your appliances and lighting.
- Solar thermal: A lesser-used option used specifically to heat your water. These take up less roof space but typically have a shorter lifespan and higher maintenance needs.
Solar panels work by:
- Capturing sunlight: the panel cells contain semi-conducting materials, and when light hits these cells, it creates an electrical field.
- Converting it into usable electricity: the panels produce Direct Current (DC) electricity but our homes use Alternating Current (AC), so the power is sent to a small box called an inverter to be converted.
- Powering your home: this electricity flows into your consumer unit (fuse box) to power your lights, appliances, and gadgets.
If you generate more power than you need, the excess flows back into the National Grid. If you need more than you’re generating (like at night), you simply pull electricity from the grid as normal.
Is my home suitable for solar panels?
For most homes, solar panels (or plug-in solar panels) are a viable option, but there are some exceptions and limitations.
- Flats: Unless you own the entire block, getting permission to install solar panels can be complicated. It depends on the floor you’re on, as well as the local authorities and property managers. You may be able to fit solar panels onto a balcony.
- Listed buildings or properties in conservation areas or national parks may not be suitable for solar panels. Less conspicuous solar tiles could be an acceptable alternative.
- Roof orientation - a south-facing roof is best. East- or west-facing could also be an option, but a north-facing roof is unlikely to be suitable.
- Shade - solar panels will be less effective if they’re in the shadow of trees or other buildings. Solar optimisers can help you monitor the performance of your solar panel system and improve it
- Roof size - larger roofs allow for more panels and a greater electrical output.
Should I combine solar panels with a solar energy tariff?
To make the most of your panels, you should consider signing up for a Smart Export Guarantee (SEG) tariff, where energy suppliers pay eligible homeowners for surplus energy they send back to the grid.
Some modern SEG tariffs even allow you to sell high by exporting energy during peak hours (e.g. 4pm–7pm) for premium rates, and buy low by charging your battery from the grid when prices are at the bottom of the barrel (usually overnight).
Solar power and battery storage
Adding a solar battery lets you store the energy you generate during the day to use at night. Here are the main benefits of adding a solar battery to your home:
- Higher self-consumption: Without a battery, you might only use 30-50% of what you generate. By adding one that can jump to 80% or more.
- Grid independence: Protect yourself against evening peak-rate price hikes.
- The cost: A battery typically adds £2,500-£5,000 to your installation but significantly increases your long-term savings.
FAQs
Is the UK sunny enough for solar energy?
Yes! Solar panels don't need direct, scorching heat; they work on daylight. Even on a typical overcast British day, your panels will still generate electricity.
Can I get solar panels if I rent?
Usually, no. You need the homeowner's permission to make structural changes. However, you can ask your landlord about solar-as-a-service options or community energy schemes.
Does home insurance cover solar panels?
Most standard policies do cover them as they are considered a permanent fixture of the home, but you must notify your insurer once they are installed to ensure your sum insured is accurate.
What’s the Feed-in Tariff (FiT)?
If you signed up to the Feed-in Tariff scheme as a generator, you can sell your excess energy for cash. However, FiT applications closed in 2019.
The Feed-in Tariff has now been replaced by the Smart Export Guarantee (SEG). This works in a similar way, giving you an opportunity to offset installation costs and earn money from your solar panel system.
Can I still switch my gas and electricity supplier?
Yes. Installing solar panels does not lock you into your current energy provider. You are free to switch your import tariff (the energy you buy from the grid) at any time. However, you should check if your new supplier offers a competitive Smart Export Guarantee (SEG) rate, as this is how you get paid for the excess energy you send back to the grid.
Does my mortgage company need to know if I install solar panels?
Usually, yes. Most mortgage providers require you to notify them of any significant changes to the property. Since solar panels are considered a permanent fixture that can affect the value of the home, it’s a standard formality. If you are using a rent-a-roof scheme (which is less common now), your lender's consent is mandatory and can be more complex.
Do I need planning permission for solar panels?
Generally, no. In most parts of the UK, solar panels fall under Permitted Development. This means you don't need formal planning permission as long as the panels don't protrude more than 200mm from the roof slope. However, exceptions apply if you live in a listed building, a Conservation Area, or an Area of Outstanding Natural Beauty (AONB). Always check with your local authority if unsure.
Can I put solar panels in my garden?
Yes. If your roof isn't suitable, you can install ground-mounted solar panels in your garden. These often require a more robust mounting frame and may be subject to different planning permission rules than roof-mounted systems (specifically regarding the size and height of the array). They are a great option if you have the space and want to optimize the angle toward the sun.
How long do solar panels last?
Most solar panels come with a 25-year performance guarantee. With proper maintenance, they can last 30 years or more.
The inverter, which converts the electricity, typically needs replacing after 12 years. Most come with a minimum five-year warranty.
