Commercial PV

Solar Contractors

Spirit is well known amongst contractors for the installation of solar PV and battery storage systems. We have over 10 years' experience in the design, supply and commissioning of new build and retrofit projects, working in conjunction with electrical contractors, principal contractors, architects and consultants.

Need quality engineering?

It's our expertise.

Mark, Head of Sales

A competitive quote.


Henry, Technical

In house installation.

Signed off by me.

Justin, Head Installer

We can provide a whole range of on-roof and in-roof solar PV systems, as well as building integrated PV and customised panels. These can be incorporated with battery storage and electric vehicle charging.

Solar contractor services

  • Free initial consultation and quotation.
  • Free completion of tender documents.
  • In depth feasibility studies and system design with performance estimates and system optimisation.
  • Liaison with other project designers: structural engineers, M&E and sustainability consultants.
  • DNO liaison and G99 compliance.
  • Technology integration – on-grid and off-grid solar, storage, lighting controls, EV charging and voltage optimisation.
  • Installation using in-house installers, servicing and maintenance.
  • Financing support to help you transform your energy use at no upfront cost.
  • CPD training in solar PV and battery storage systems.

Request a quote

Who we work for

We work for more than 50 contractors and consultants, ranging in size from small local M&E firms, right up to some of the UK's largest house builders and construction companies.

Taylor Wimpey
oxford city council
Berkeley Group
Kier Group
morgan sindall
Willmott Dixon

Case studies

Winchester homes with solar panels

Millgate Homes, Winchester

In Winchester, we installed 11.5kWp of PV across four new build plots for Millgate Homes. We integrated 46 Viridian panels into the new roofs for a flush and efficient design.


Dolphin Retail Park

Morgan Sindall contracted us to install this extensive 103kWp solar PV system over four units at Dolphin Retail Park in Salisbury.


dolphin retail park

Fully accredited installers

MCS Certified footer logo
Constructionline Silver
tesla certified installer

Get in touch

Contact us today on 0118 951 4490 to discuss your project needs.

Request a quote

Discover more

Solar Specifier's Guide


Avoid the pitfalls in specifying solar. Learn how to:

  • size a system to meet the target output,
  • comply with panel and inverter specs,
  • obtain necessary approvals early on.

Plus you'll stay up-to-date with current panel efficiencies and prices.

Download now

Free CPD training


Develop your knowledge and understanding of solar PV, battery storage and EV charging systems.

  • Learn about system design.
  • Get up-to-speed with current technology.

Our CPD courses are free and we can even travel to your offices.

Find out more about CPD training