
Commercial solar installation for businesses in the West Midlands
Larger systems for single roofs, multi-building sites and three-phase supplies — surveyed, designed and installed to work around a live business.
Impression Electrical & Building designs and installs commercial solar for businesses across the West Midlands and further afield. We handle larger roofs, multi-building sites and three-phase supplies, working around live operations from survey to handover. Established 2019, with commercial systems up to 50kW and beyond.
Commercial solar is a different job to a domestic install. The roof is bigger and often more fragile, the electrical supply is usually three-phase (a heavier supply that runs most commercial equipment), and the building can't stop trading while the work happens. The system has to be designed around all three.
It's also the part of our business we're growing hardest, because the numbers make sense for the right site. Decisions here should rest on your generation and consumption figures, not a glossy projection — and we build the design around what your meter data actually shows.

Sized around the building and how it uses power
We start with the roof structure, the supply and your consumption data. A commercial system earns its keep by cutting the electricity you buy during working hours, so the design targets your daytime load rather than a headline kilowatt figure.
For multi-building or multi-phase sites, that means mapping where the generation is best placed and how it feeds each part of the operation — not just filling the largest roof with panels.

Working around a live site and a fragile roof
Most commercial roofs weren't built with an installation crew in mind. At Birmingham Business Park the roof was fragile enough that we worked entirely off roof boards and replaced damaged tiles as we went, so the building was left better than we found it.
We plan the work around your operating hours and access, so 300 panels can go on without the business grinding to a halt.
From survey to handover
The process scales up for commercial work, but the principle holds: understand the site, present options, install cleanly.
01 — Survey & data
We assess the roof structure and supply, and look at your consumption data so the system is designed against real load, not an estimate. For larger sites this includes how each building or phase draws power.
02 — Design options
We present costed designs and talk directors and facilities teams through the trade-offs — system size, phasing, roof access and how the install fits around trading hours.
03 — Install & commission
Our team installs, tests and commissions the system, protecting the roof and working around your operation, then hands over the full documentation.
A real install

20kW of solar and storage across a Lapworth estate
A multi-building site on a three-phase supply, with the DC run in underground ducting and remote protection throughout. We presented three designs and specced the right kit, not the cheapest. Site consumption fell by 40%.
Commercial solar across the region
Commercial solar questions
How much does a commercial solar system cost?
Commercial cost depends on system size, roof type and access, and whether the supply needs work. We price against your consumption data and a site survey rather than a per-kilowatt rule of thumb, because a fragile roof or a constrained supply changes the job significantly.
How long does a commercial installation take?
It varies with size and roof access, and we plan it around your trading hours so the business keeps running. We'll give you a realistic programme after the survey rather than a stock figure — a 300-panel roof is a different timeline to a single-unit install.
Can you install solar without shutting the business down?
Yes. We plan the work around your operating hours and access, and stage it so day-to-day operations continue. At Birmingham Business Park we installed 300 panels on a live site working off roof boards to protect a fragile roof.
Do you work on three-phase and multi-building sites?
Yes. Larger commercial supplies are usually three-phase, and many sites spread across several buildings. We design for how power is generated and used across the whole site, which is exactly the kind of work we take on.
How do we know solar is worth it for our site?
The honest answer comes from your figures, not a brochure. We look at your consumption data and the roof before recommending anything, and if the numbers don't stack up for your site we'll tell you.
Talk to us about commercial solar
Send us your site details and rough consumption, and we'll arrange a survey and come back with costed options built around your figures.