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Go Green with Orange

Helping you harness the South Coast sun to lower your bills.

 

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How much do solar panels cost for a 3-bedroom house in the UK?

For a typical 3-bedroom semi-detached or detached home in the South of England, a standard 4kW to 5kW solar panel system usually costs between £6,000 and £8,500 fully installed.

If you choose to add a battery storage system (such as a Tesla Powerwall or Anker SOLIX battery) to capture excess energy for evening use, the total investment typically ranges from £10,500 to £14,500.

Why do prices vary?

Because we serve a 100-mile radius around Southampton, covering areas from Chichester and Portsmouth up to Surrey and Guildford, we know that no two roofs are the same. Several factors influence your final quote:

  • System Size: A 3-bedroom home with high electricity usage (e.g., an Electric Vehicle or Heat Pump) may require a larger 6kW system.
  • Component Quality: Premium panels with longer warranties or “All Black” aesthetics often sit at the higher end of the price range but offer better long-term yields.
  • Roof Complexity: Installations requiring extensive scaffolding or those on slate or flat roofs may incur additional labour costs.
  • Battery Capacity: A larger battery (e.g., 10kWh vs 5kWh) will increase the upfront cost but can reduce your reliance on the grid by up to 80%.

 

Estimated Savings & Payback

In the sunny South of England, solar performance is among the best in the UK. A well-designed system for a 3-bed home can save you between £700 and £1,100 per year on energy bills. When combined with the Smart Export Guarantee (SEG) where you get paid for the energy you don’t use, most of our customers see their system pay for itself in 7 to 9 years.

Is there any financial help?

The 0% VAT rate on solar and battery installations is currently active (until April 2027), saving you roughly £1,500–£2,500 compared to previous years. We also offer flexible finance options through Ideal4Finance to help spread the cost into manageable monthly payments.

Get a Precise Quote: Every home is unique. For an accurate price tailored to your roof and energy needs, click here to request a free site survey or call our Southampton team on 023 8044 8872.