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mySolar Panel Cleaning Cost
At a Glance
- The average cost of cleaning solar panels is around £150.
- Solar panel cleaning takes approximately 30 to 60 minutes to complete.
- NEW! Use our solar panel cleaning cost calculator for an instant estimate.
- A complete breakdown of solar panel cleaning costs and what impacts the cost.
- How long it takes to clean solar panels, along with the steps involved if you want to clean them yourself.
- How to find and hire local solar panel cleaners near you with MyJobQuote.
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Table of Contents
Solar Panel Cleaning Cost Calculator
How Much to Clean Solar Panels?
Most homeowners in the UK pay around £100 to £150 for professional solar panel cleaning, but a few things affect the final price.
Over time, dust, bird droppings, leaves, and soot build up on your panels and reduce how much energy they generate, so a regular clean helps protect their efficiency. Panels near busy roads, trees, or farmland collect dirt faster and may need cleaning more often, which can also affect what you pay.
Cleaning solar panels on a roof is usually more time-consuming and expensive than cleaning ground-level panels. Some companies offer a per-panel fee of between £4 and £15, but this sometimes comes with a minimum charge so can lead to higher costs for smaller jobs.
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The final cost will usually account for the time spent travelling to your property, labour time, the equipment and materials used, and of course, the scale of the job.
What's the best way to keep birds from nesting and roosting around my solar panels?
"You can put a proofing mesh around the frame, and spikes if needed."
Solar Panel Cleaning Prices
The main factor affecting the cost of solar panel cleaning is the size of the system.
Most homes take around 30 to 45 minutes to clean, though larger properties can take up to 90 minutes depending on the number of panels and how easy they are to reach.
Below is a table showing typical costs for different sized properties:
| Property Type | Typical Panels | Cost |
|---|---|---|
| Per panel | - | £4–£15 per panel |
| Bungalow or ground-mounted system | 6 to 10 panels | £50–£90 |
| 2 to 3 bed terraced or semi-detached | 8 to 14 panels | £80–£150 |
| 4 bed detached | 12 to 16 panels | £120–£180 |
| 5+ bed or large detached | 16 to 25 panels | £150–£250 |
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Can you install solar panels in a gated front garden?
"Installing solar panels domestically should not usually require an application for planning permission, so long as the conditions and limits are met. You should also consider your location and the positioning of panels to maximise the amount of energy generated.
If you live in a listed building or designated area (Conservation Area, National Park, Area of Outstanding Natural Beauty), you should check with your Local Planning Authority before carrying out any work."
If you live in a listed building or designated area (Conservation Area, National Park, Area of Outstanding Natural Beauty), you should check with your Local Planning Authority before carrying out any work."
Factors That Affect the Cost of Cleaning Solar Panels
There are a few factors that can affect the cost of cleaning solar panels, which include:
- Number of panels — More panels usually mean higher costs.
- Accessibility — Roofs that are very high or difficult to access can increase costs.
- Panel condition — The amount of dirt or debris on the panels can affect how long they take to clean.
- Position of the panels — Panels installed on the ground may be cheaper to clean than those on a roof.
- Location in the UK — Solar panel cleaning in Edinburgh will generally cost less than in London.
What Does Professional Solar Panel Cleaning Involve?
When you hire a professional (usually a specialist solar panel cleaner or a window-cleaning firm), the process is typically quick, safe, and designed to protect your system.
- Inspection — The cleaner checks the panels for visible dirt, debris, or damage before starting.
- Safe setup — Equipment is set up, usually from the ground using extendable water-fed poles.
- Cleaning — Panels are gently cleaned using purified water and soft brushes to avoid scratches or residue.
- Final rinse and check — The system is rinsed and visually checked to ensure everything is clean and functioning as expected.
Many homeowners also find a professional cleaning service to be a worthwhile investment as part of their solar panel maintenance schedule, as a professional may also be able to inspect the panels to ensure they are functioning correctly at the same time.
There's very little you need to do to prepare. Just make sure the cleaner has clear access to the panels and to an outdoor tap if they need water, mention anything they should know about (a fragile roof or a recent fault), and keep any nearby windows closed while they work.
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When Should You Clean Solar Panels?
Most solar panels in the UK only need cleaning around once a year, but this can vary depending on your location and surroundings. To keep them performing well, the Energy Saving Trust recommends a clean every 12 to 18 months.
You may need a clean sooner if you notice:
- A visible build-up of dirt, dust, or bird droppings.
- A dull or hazy layer over the panels.
- A drop in energy output compared to usual (higher bills).
- You live near trees, farmland, or busy roads.
As a general rule, if it's been over 12 months since your last clean, it's worth inspecting them. It might be necessary to clean solar panels after a particularly dry month, as rainwater helps remove accumulated dirt and debris.
It's worth having your solar panels cleaned regularly to maintain their efficiency and prolong their lifespan.
You can often pay less by booking a regular clean. Many companies offer a lower per-visit rate for an annual or twice-yearly slot rather than one-off visits, which is worth asking about.
Cleaning is also far cheaper than a major repair. Replacing panels can cost between £2,500 and £8,500, while solar roof tiles cost even more at £7,000 to £14,000. Regular cleaning helps protect the value of your solar panel installation.
How difficult and how costly is it to add battery storage to an existing solar panel system?
"It depends on the system you have installed. If you check the make of the inverter and then contact the supplier, they will be able to give you the best option."
Will I Need to Hire Any Other Tradespeople for Solar Panel Cleaning?
Solar panel cleaning is usually carried out by a specialist solar panel cleaning company, or by a window cleaner or exterior cleaning firm that uses water-fed pole equipment. You don't need an electrician or a roofer for a standard clean, as the job is done from the ground wherever possible.
Many of these cleaners also offer related exterior jobs, such as gutter clearing and window cleaning, so it's often worth asking whether they can handle more than one task in the same visit. A good cleaner will also give the panels and their fixings a quick visual check while they work, and flag anything obvious like loose brackets, cracked glass, or a build-up of moss, algae, or lichen.
What they won't do is carry out repairs. If a clean doesn't restore your panels' performance, or the cleaner spots a possible fault, you may need an electrician to inspect the system. Common causes of underperformance include:
- A broken inverter.
- A defective charge controller.
- Faults within the solar panel itself.
Panel faults can be the trickiest to fix, as the photovoltaic cells within a panel are interconnected. In a typical string system, a single faulty panel can drag down the performance of the whole array. If you have any doubts about how your panels are performing, it's worth hiring a qualified electrician to run tests and find the cause.
Do I need a battery storage system when I get solar panels? If so, where does this get fitted, and how much space does it need?
"It depends if you're home a lot during the day. If you are, then a battery isn't necessarily required. If you're out during the day, then a battery would be required to store the energy so you can use it during the evening. You'd ideally have it in a garage, if not the loft. You can also fit some systems externally."
Checklist: Hiring a Solar Panel Cleaner in the UK
When looking for local solar panel cleaners near you, here are a few things to ask them before deciding who to hire:
- How much experience do they have with solar panels? It's not the same as cleaning windows or gutters. You'll want someone who knows how to work with the panels safely without damaging the surface or wiring.
- Do they use the correct equipment? Ask what they clean with. A decent solar panel cleaning kit uses soft brushes, purified water, and no harsh detergents that could leave residue or marks.
- Are they insured? Always ask if they have public liability insurance. Because if anything gets broken, scratched, or they slip on your roof, you're covered.
- Can they work safely when up high? Roof access can be complicated, especially if your home is tall. So, they'll need the right safety gear and experience, plus ladders or access platforms.
- How frequently do they advise cleaning? A couple of times a year is okay in the UK. That said, the frequency will depend quite a lot on where you live. Near trees or main roads? You might need more regular cleans. If you live in an area with heavy rainfall, you may need less frequent cleaning.
- Do they inspect as well as clean? Quite a number of specialists will also check for loose fittings, debris under panels, or even early signs of damage. So it's always a good idea to ask — small issues caught early can save you money later.
- What's included in the quote? Ask for a clear price breakdown from the get-go. Does the quote cover travel, water use, and full roof access?
FAQs
Can I Clean My Solar Panels Myself?
Yes, and for low, easily reached panels it's the cheapest option. You only pay for a basic cleaning kit and some water, rather than a professional's fee. Stick to a soft brush from ground level on a cool, overcast day, and never stand on the panels. If ladders or roof access are involved, though, it's safer and often cheaper in the long run to hire a professional, who can also check for faults while they clean.
Can Cleaning Damage My Solar Panels?
It can if it's done the wrong way. Pressure washers, abrasive pads, and harsh chemicals can scratch the glass, damage the coating or force water into the seals, which is why professionals stick to soft, non-abrasive brushes and purified water. Done gently with the right kit, cleaning is very low-risk. The bigger danger is usually to the person doing it, so anything at height is best left to a professional.
Is Solar Panel Cleaning Worth the Cost?
It depends on how dirty your panels are. On an average home, a clean might only recover a small amount of lost output, so it can take a couple of years to pay for itself. However, heavier soiling such as bird droppings can lose up to 10% of output, so a clean would pay for itself. If your panels look clean and your output is steady, you can usually leave them longer.
Will Rain Alone Keep My Panels Clean?
Rain does a reasonable job of rinsing off loose dust, so many UK panels stay fairly clean on their own and don't need frequent paid cleans. It's much less effective on low-pitched roofs, where water runs off slowly, or against sticky soiling like bird droppings, moss, algae, and lichen, which rain won't shift. If your output has dropped or you can see a build-up, that's when paying for a proper clean is worth it.
Is It Cheaper to Bird-Proof Panels Than to Keep Cleaning Them?
If birds are the main culprit, it can be. Droppings are one of the worst things for output and they keep coming back, so repeated cleans add up. Fitting mesh or spikes around the array is a bigger one-off cost but lasts for years and tackles the cause rather than the symptom. For a one-off mess a single clean is cheaper, but for a persistent bird problem, proofing usually works out better value over time.
Can Commercial Solar Panels Be Cleaned, and Does It Cost More?
Yes. Commercial and larger ground-mounted arrays are cleaned in the same way, usually with water-fed poles or specialist equipment for bigger sites. The cost is normally worked out per panel rather than as a flat rate, so the total depends on the size of the system. For large installations, it's worth asking for a site visit and a tailored quote.
Does Cleaning Solar Panels Affect My Home Insurance?
Cleaning them normally has no effect on your buildings insurance, but a couple of points are worth knowing. Most insurers expect you to declare solar panels and to keep them reasonably maintained, so a routine clean helps avoid any dispute over a claim. The bigger money risk is who does the work. If you hire a cleaner, check they carry public liability insurance, or you could end up covering the cost of any damage or injury yourself. It's always worth checking your own policy wording.
Could Cleaning My Solar Panels Affect the Warranty?
Some manufacturers will void the warranty if you use things like pressure washers, severe chemicals, or anything abrasive to clean your solar panels. So, check the paperwork first, then you'll know you're cleaning them in a way the manufacturer is happy with.
Is There Such a Thing as a Self-Cleaning Solar Panel?
Some modern solar panels marketed as "self-cleaning" use special glass or hydrophobic coatings to help rain wash off dust and light grime. However, rain on its own usually isn't enough to remove stubborn build-up like bird droppings. Other panels integrate robotic cleaners to automatically clean the surface, but these are still quite rare and expensive.
Do I Need To Remove Snow From My Solar Panels?
Most UK homeowners don't need to remove snow from their solar panels. Because most panels are fitted at an angle, light snow just slides off or melts on its own as soon as the sun comes out. If you ever get heavy, settled snow that's blocking the panels for days, it's worth calling in a specialist to clear it safely.
