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going solar has never been more simple

Step 1 – Fill in our form

Step 2 – Have a consultation

Step 3 - Installed within 7 days

Step 4 - We support you for 25 years!

#1 UK Solar Installer According to The Financial Times.

The fastest growing solar company in the UK according to The Financial Times. We put the customer first, deliver what we promise, and ensure you get the very best equipment.

Don’t just take our word for it

join thousands of happy customers!



Spread the cost of your Solar System with our flexible finance options .

Our systems featured in:

Frequently Asked Questions

Full systems at Solar Fast start from as little as £7995 but varies widely based on your requirements. 

See more on solar panels costs here.

The installation of a full solar system can take as little as 4 hours but will vary from home to home.

Most installation need scaffolding erecting and dismantling so, including that, Solar Fast state the full installation takes 3 days.

We know that trust is incredibly important when you are looking at ANY home improvements. 
That’s why we are accredited with:  


MCS certifies low-carbon energy technologies and contractors, auditing them regularly, to ensure that they follow industry standards – including MIS3002 and MGD003. 

Our MCS accreditation is very serious to us, and our customers. As a professional company, we follow these standards in everything we do. 

Systems that aren’t accredited by MCS are ineligible to export their energy to the grid.  


When Solar Fast give you a quote for a solar energy system, we will also factor in future savings, payback time and earning potential – as well any service or replacement cost.  

This quote is then submitted to EVPS, an independent industry body, to check we have made the correct calculations and given you all the relevant information.  


HIES is a consumer protection organisation that specialises in the installation of home energy products.  

Solar Fast are affiliated with HIES so they will guarantee any work we carry out when installing solar energy systems. 


Solar Fast is NAPIT registered, which means we are: 

 Able to complete work safely and to legally required standards 

 Regularly assessed to provide assurance of our ongoing competence 

 Capable of working to the very latest health and safety regulations 

 Able to provide you with the necessary certificates to demonstrate the regulatory compliance of the work we do.  

Certificates may be requested by tenants, insurance providers and solicitors and may be needed if you are looking to let or come to sell your property. 



Trustmark offers assurance, certainty and protection to homeowners looking to have work done in and around their homes.  
As a TrustMark Registered Business we are thoroughly vetted and continually monitored to ensure we meet required standards in technical competence, customer service and trading practices, so homeowners can be sure they’re making the right choice. 

All panels supplied by Solar Fast come with a 25-year guarantee – however they last longer that.

Solar Panels have no moving parts and are made from steel, glass, copper and silicon.

The PV cells are where the silicon comes in, it’s the material that converts daylight into electricity, and that degrades at 0.5% a year.

After 25 year the panel will be performing at 80% of its original output and that’s when a change is recommended.  

Learn more about how long solar panels last here.

We do offer finance and we will find a payment option that is best suited to you. 

Gas Fast Limited T/A Solar Fast are authorised and regulated by the Financial Conduct Authority - FRN 799102. 

We are a credit broker, not a lender, and have facilities with Tandem Money Limited.

The only nationwide grant available to install a solar energy system is the ECO4.

You could be eligible if you:

  • Currently have heating with an EPC rating of D or lower.
  • Live in private rented accommodation or own your own home.
  • Live in an all-electric home where biomass boilers or a District Heat Network have been ruled out.
  • Are receiving government benefits like child benefits or income support.
  • Have been referred by your energy company,
  • Are in a household with an annual income of less than £31,000.

Local authorities can also use the element of ECO4 to look at your personal circumstances such as the number of people in the home and at if your EPC rating needs lowering.
If you’re eligible you can get up to £10,000 to fund energy efficiency measures in your home.

Mounting solar panels on a roof in the correct way is integral to how much power they produce.

South facing roofs are the best for solar panels but East and West facing roofs are also perfectly good.

Panels can be fitted to most roofs depending on how they are constructed. For instance, thatched roofs, or the roofs of listed buildings, would not be suitable for mounting panels.

Solar Fast will remotely survey your home before booking an appointment with you to ensure you can have the panels you want.

Solar Panels require very little maintenance as they have no moving parts and will keep functioning for more than 25 years.

They may need occasional cleaning if you live near the sea, have overhanging trees or a lot of local wildlife like squirrels and birds.

Solar Fast recommend ‘bird netting’ to keep your panels safe from any little critters that may want to make nests or chew wires.

Energy suppliers have a legal obligation to offer customers a SEG tariff.

The SEG, or Smart Energy Guarantee, replaced the FiT scheme and allows customers to sell their excess electricity back into the grid.

Tariffs are becoming much more flexible, meaning you can draw from the grid when it’s cheap, and export when you can be paid more.

Battery storage is a fantastic way of saving even more money on your electricity bills.

Once the sun goes down your panels will no longer be able to generate energy, so storing excess energy produced during the day, for use in the evenings, means you aren’t paying peak-rates for your electricity.

Solar Panels work on day light, not sunlight, so they will work during the day no matter what time of year it is.

The light is much weaker in winter, so the panels won’t be producing as much electricity as they do in Summer.

This graph shows the average generation, and consumption, of a 12 panels system.


Solar Panels generally clean themselves.

As they are angled on your roof, the rain, or snow, will hit the panels and clear them of any dust and debris.

Animal dropping can be a bit trickier so it’s always a good idea to have your panels cleaned if you notice they’re not performing as well as they should.

There is no need to obtain planning permission to install solar panels on the average UK house.

Planning permission may be needed if your home is listed or protected in any way – like being in area of outstanding natural beauty or a nature reserve.

Solar Fast deal with all other regulations to do with the install of our solar systems and can advise if planning permission is needed.

The average domestic solar install in the UK is 12 panels.

Solar Fast supply 400-watt panels, so 12 of those could be generating over 4kW, more than enough for the average home.

Learn more about how many solar panels you need here.

Solar Fast supply DMEG MONO-FACIAL 104 Half Cell 410-watt panels for most domestic installation.

These contain 104 silicon half cells, as opposed to 60 or 72 full cells, as this technology improves the efficiency rating of the module.

They are also housed in black-on-black casing, so they look fantastic when placed on your roof.

Any home improvement will add value to your home, and Solar is no different.

The numbers vary depending on which study you look at but, here at Solar Fast, we believe it also depend on the area you live in, the system you have and who’s buying your home.

Estimates on the value a solar system adds to your home vary from 3% to 25%.

Renewable Energy Magazine’s UK study shows that solar increases your home value by 14% on average.

Yes, a domestic solar system will affect your home’s EPC rating, positively!

An average 4kW system can add up to 15 points to your rating meaning it will almost definitely take you into a higher category.

For instance, if your home is low D, a solar system will take it into a low C.

Higher EPC ratings add value to your home.