Solar panel installation is one of the most practical ways to reduce household electricity bills and cut carbon emissions. This guide walks you through every stage, from the first free survey to the final MCS certificate, so you know exactly what to expect and can make a confident decision.
How solar panels work
Solar panels convert daylight into electricity using photovoltaic cells. When sunlight hits the cells, it creates a flow of direct current (DC) electricity. An inverter then changes that DC into alternating current (AC) which powers your home appliances. Any surplus can be exported to the grid, earning you a payment through the Smart Export Guarantee (SEG). The process is silent, has no moving parts, and requires very little maintenance once it is up and running.
What a typical domestic solar panel installation involves
A professional installation follows a clear sequence. Understanding each step helps you plan and avoids surprises.
- Free, no‑obligation survey – a qualified assessor visits your property (or carries out a detailed remote assessment) to check roof orientation, shading, structural suitability and your current electricity usage.
- System design – based on the survey data, the installer creates a layout showing panel numbers, inverter size and, if you choose, battery storage capacity.
- Quotation and agreement – you receive a detailed quote covering equipment, labour, scaffolding, testing and the MCS certificate. No work begins until you sign.
- Scaffolding and safety setup – safe access to the roof is erected, usually the day before the main fitting work.
- Panel mounting – rails are fixed to the roof structure, then the panels are clamped onto the rails.
- Inverter installation – the inverter is mounted in a convenient, ventilated location (often the loft or garage) and wired to the panel array.
- Battery connection (optional) – if you have opted for storage, the battery is linked to the inverter and your home's consumer unit.
- Electrical testing and commissioning – the whole system is tested for safety, performance and compliance with the latest wiring regulations.
- MCS certificate issuance – the installer provides the Microgeneration Certification Scheme (MCS) certificate, which you need for SEG registration and most grant schemes.
- Handover and monitoring setup – you receive a user guide, login details for any monitoring portal, and a point of contact for future support.
How long does solar installation take?
Once the survey is complete and the design is approved, most home installations take one to three days on site. The exact duration depends on roof complexity, whether scaffolding is needed, and if a battery is being added. The survey, design and quotation stages usually add a further week or two, but the physical work on your roof is typically finished within a long weekend.
What happens on installation day
On the first day the scaffolding crew arrives early, sets up safe access and protects any landscaping. The fitting team then mounts the rails, secures the panels and runs the DC cabling down to the inverter location. The second day (or later the same day for smaller systems) focuses on the inverter, any battery, and the final electrical connections. The final visit includes a full commissioning test, a walkthrough of the monitoring app, and the handover of the MCS certificate and warranty documents.
Do I need planning permission?
In the majority of cases, domestic solar panel installation is classed as permitted development and does not require a planning application. Exceptions include listed buildings, properties in conservation areas with specific restrictions, and installations that protrude significantly beyond the roof plane. Your installer will confirm the position for your address during the survey.
Why MCS‑certified installers matter
The Microgeneration Certification Scheme (MCS) is the industry quality mark. Only MCS‑certified installers can issue the certificate needed to register for the Smart Export Guarantee and to access most grant routes such as ECO4. Certification also means the installer follows strict standards for design, workmanship and consumer protection. Maya Solar only refers you to MCS‑certified partners, so you can be confident every quote meets those requirements.
DIY solar installation – is it possible?
Technically you could buy panels and mount them yourself, but DIY solar panel installation is strongly discouraged for several reasons:
- Safety – working at height and handling live DC wiring carries serious risk without professional training and equipment.
- Compliance – a self‑installed system cannot receive an MCS certificate, so you would be unable to claim SEG payments or most grants.
- Performance – incorrect orientation, shading analysis or inverter sizing can dramatically reduce output, lengthening payback.
- Warranty – many manufacturers void warranties if the system is not installed by an accredited professional.
For peace of mind, safety and financial eligibility, a professional, MCS‑certified installation is the recommended route.
How much is solar installation?
Costs vary with system size, roof type and whether you add storage. As a guide for a typical three‑bedroom home in 2026:
- 4 kWp panel‑only system – roughly £6,000–£8,000 fully installed.
- 4 kWp system with battery storage – typically £10,000–£14,000 installed.
These figures include scaffolding, inverter, testing and the MCS certificate. The government currently applies 0% VAT on domestic solar panel and battery installations until 31 March 2027, which can save you roughly £1,000–£3,000 on a typical quote. Prices are quoted before any grant funding is applied.
Payback and long‑term value
Most UK homes see their panels pay for themselves in roughly 10–15 years, depending on how much electricity you use during daylight hours and the SEG rate you secure. Panels are usually guaranteed for 25 years and continue producing well beyond that, losing under 1% output per year. Over the system's lifetime the total generation can far exceed the initial outlay, especially when combined with battery storage that lets you use more of your own power.
Grants, SEG and the 0% VAT window
- Smart Export Guarantee (SEG) – licensed suppliers must pay you for exported electricity. Standard tariffs range from about 1p to 15p per kWh, with a market average around 13p/kWh. Some installer‑exclusive or time‑of‑use deals can pay more.
- ECO4 – can fund 100% of a solar installation (typically worth £5,000–£8,000) for households on certain means‑tested benefits with an EPC rating of D‑G. The scheme runs to the end of 2026 and is accessed via energy suppliers or Local Authority Flexibility routes.
- 0% VAT – applies to both panel‑only and panel‑plus‑battery installations until 31 March 2027, delivering a meaningful upfront saving.
All of these incentives require an MCS certificate, reinforcing the importance of choosing a certified installer.
What to expect from a free survey
Maya Solar's free survey is designed to be low‑pressure and informative. A qualified assessor will:
- Measure roof dimensions, pitch and orientation.
- Identify any shading from trees, chimneys or neighbouring buildings.
- Review your recent electricity bills to understand daytime usage patterns.
- Discuss whether battery storage makes sense for your lifestyle.
- Explain the likely system size, expected generation, and a ball‑park cost range.
- Outline the next steps, including how to secure an MCS‑certified installer and any grant eligibility.
You receive a written summary and a no‑obligation quote within a few days. There is no commitment to proceed, and you can ask as many questions as you like.
Next steps – get your free, no‑obligation quote
If you are ready to explore how a solar panel installation could work for your home, the simplest way to start is to request a free survey. Fill in the short online form on the Maya Solar website or email [email protected] with your address and a convenient time for a visit. A certified installer will contact you, arrange the survey, and provide a clear, itemised quotation – all without any pressure to buy. Taking this first step gives you the facts you need to decide whether solar is right for you, and puts you on the path to lower bills and a greener home.