Installation packages4kW solar installation package
4kW is one of the most common sizes for UK homes with adequate roof space. BlankSolar delivers full design, install, and commissioning with equipment from trusted partners.
Installation packages4kW solar installation package
4kW is a common target for homes with adequate roof space and typical single-phase DNO limits. It delivers meaningful bill savings and export potential without always requiring the largest domestic array.
BlankSolar’s 4kW package includes G98/G99 handling where required, scaffolding on most two-storey homes, and neat AC/DC installation with labelled consumer unit work. Generation estimates are site-specific — we do not quote unrealistic payback figures.
The size suits families, home workers, and households planning EV charging who want strong midday generation.
- Popular domestic sweet spot
- DNO notification managed by BlankSolar
- EV-friendly day-time generation
- Itemised quote before work starts
Strong home generation
Ideal when you have good south or west roof space.
Higher yield
More kWh per year than smaller packages on the same roof quality — especially valuable with home working and EV charging.
EV ready
Extra day-time power supports EV charging from solar. We can discuss Zappi or similar integration at survey.
MCS certified
Documentation supports warranties, SEG, and property buyers if you sell — certification is increasingly expected by lenders.
4kW system design
Tailored panel layout and inverter selection.
Roof use
We optimise layout for generation and appearance. Multiple roof planes can be used with the right inverter strategy.
Roof use
We optimise layout for generation and appearance. Multiple roof planes can be used with the right inverter strategy.
Other package sizes
Not sure this is the right size? These are the neighbouring bands — your survey will settle it.
2kW Installation
Entry-level 2kW package for smaller homes — efficient generation without filling the whole roof.
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3kW Installation
Balanced 3kW package — a popular choice for typical UK terraces and semis with good south or west roof space.
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5kW Installation
5kW package for larger homes, high consumption, and properties approaching single-phase export limits.
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6kW Installation
Our largest standard domestic package — maximum generation where roof and grid capacity allow.
View serviceBrands we fit for this
Equipment we have installed and stand behind. Your quote names the exact models.
Often combined with
Services customers usually pair with this one.
4kW Installation across Essex
We are based in Braintree and cover 81 towns and villages across all 14 Essex districts, with UK-wide projects by arrangement. Pick your district for local planning, grid and travel notes.
4kW Installation — common questions
Quick answers about this service. Contact us for property-specific advice.
Guides worth reading first
Plain-English explainers from our blog.
System size
Choosing a solar system size
BlankSolar installs packages from 2kW to 6kW, and larger systems where the roof and supply allow it. Size should follow the property, not a default package.
Export
Smart Export Guarantee, explained
The Smart Export Guarantee pays you for surplus electricity you send to the grid. Here is how it works, and why the paperwork from your installer matters.
Batteries
Battery storage for UK homes
A battery lets you keep solar generation for the evening instead of exporting it straight away. Here is when it helps, and what installation involves.
Ready to go solar?
Book a free survey or speak to our MCS-certified team about your property.