MCS-certified commercial solar panel installation across the UK — modelled from your half-hourly data, fixed-price, and engineered around your building and lease, not a generic template.
A commercial solar panel installation is a structural, electrical and regulatory project, not just a roof job. The difference between an install that out-performs its model for 25 years and one that disappoints is in the engineering: a proper half-hourly load model so the system is sized to genuine on-site demand, a structural survey to confirm the roof can carry it, a clean G99 grid connection, and — on a let building — a lease structure that puts the value where it belongs. We handle all of it as a single fixed-price programme.
As a commercial solar panels specialist we install across every building type, from a 50 kWp owner-occupied unit to a multi-megawatt portfolio. What follows is exactly how an installation runs.
The installation process
From first call to commissioning
A clear, fixed-price programme — we sequence the grid connection and any consents alongside the build so nothing stalls on site.
01
Day 1–7
Feasibility & design
We model your half-hourly meter data, confirm roof and structure, and produce an indicative system design and budget.
02
Week 2–4
Survey & fixed-price proposal
Structural roof-loading survey to BS EN 1991, electrical design, and a fixed-price proposal with the funding and tax position set out.
03
Month 2–6
Consents & DNO connection
Class J prior approval where needed and the G99 DNO grid-connection application — usually the longest lead item, so we start it early.
04
Month 6–9
Install & commission
Mounting, panels and inverters installed (2–10 weeks by size), commissioned, monitored, and handed over with EPC and Scope 2 evidence.
What a complete installation includes
Our fixed-price installations are whole-job, not panels-only. Every proposal covers the structural survey, electrical design, panels, mounting and inverters, the G99 grid connection and DNO liaison, scaffolding and access, commissioning and monitoring, and the full handover pack. Where the roof membrane has under 15 years of life left, we will tell you and recommend combining the install with a re-roof in one project rather than paying to strip and refit later — a call most installers never make.
Accredited commercial installers
We hold every certification a UK commercial solar installer should: MCS commercial certification (the basis for Smart Export Guarantee eligibility), NICEIC approved-contractor registration, RECC membership and TrustMark licensing, with ISO 9001, 14001 and 45001 for quality, environment and health and safety. Workmanship is covered by a 10-year insurance-backed warranty, and we share the PVSyst yield model behind every proposal so any third party can check our numbers. Read more about how we work.
Installation on let and leveraged buildings
If your building is let, an installation is also a lease exercise. We coordinate tenant access and notice under the alterations clause, sequence any mortgagee and insurer consent, and address the structural and roof-lifecycle position up front — the detail covered in our owner\'s due-diligence guide. If you would rather commit no capital, a third-party-funded roof lease delivers the same install at zero capex.
FAQs
Commercial solar installation — common questions
How long does commercial solar panel installation take?
The on-roof install itself is typically two to ten weeks depending on system size, but the full programme — feasibility, survey, design, Class J prior approval and the G99 DNO connection — runs around six to nine months end to end. The grid connection is usually the longest lead item, which is why we begin it early.
Do I need an MCS-certified installer for commercial solar?
MCS commercial certification is the basis for Smart Export Guarantee eligibility and is the mark of a competent installer, so it is strongly recommended on any commercial project. We hold MCS commercial certification alongside NICEIC approved-contractor registration, RECC membership and TrustMark licensing, all independently verifiable.
Will installation disrupt my building or my tenants?
Commercial installs are planned around occupation. Most rooftop work happens with no interruption to the floors below, flat-roof systems are usually ballasted with no penetrations, and the only brief outage is at final connection, which we schedule with you. On let buildings we coordinate access and notice with tenants under the lease.
What is included in a commercial solar installation?
A complete installation covers the structural roof-loading survey, the electrical design, the panels, mounting and inverters, the G99 grid-connection application and DNO liaison, any Class J prior approval, scaffolding and access, commissioning and monitoring, and the handover documentation — including the EPC and Scope 2 evidence. Where the roof membrane is near end of life we will recommend combining the install with a re-roof.
Do you install commercial solar across the whole UK?
Yes. We install commercial solar panels on businesses and commercial buildings across England and Wales, from single units to multi-building portfolios. See the areas we cover for local cost and grid-connection context.