With over 15 years of industry experience, Phase Electrical Engineering is a commercial electrical contractor delivering high-quality electrical installations, testing, design coordination, and project support for office fit-outs and commercial developments. We work closely with main contractors, developers, and site project teams to deliver safe, compliant, and programme-driven electrical solutions, from initial installation through to final testing and handover.






Phase Electrical Engineering is a commercial focused electrical contractor specialising in office fit-outs, commercial refurbishments, and development projects.
Founded in 2021, we have built a reputation for quality workmanship, reliability, and professional project delivery. With over 15 years of industry experience, our team has delivered a vast range of commercial electrical projects — from CAT A and CAT B office fit-outs to large scale commercial installations, public sector works, and mixed use developments.
We understand the demands of commercial construction environments and the importance of clear communication, coordination, and programme certainty. Our team works proactively alongside project managers and site teams to ensure projects are delivered safely, efficiently, and in line with agreed programmes.
Safety and compliance are at the core of everything we do on site. Our fully qualified electricians, including 2391-certified testers, ensure all works meet current regulations and industry standards. Every project is completed with thorough testing, clear documentation, and a professional handover process.
Phase Electrical Engineering was founded by Alex Kyselak, an experienced electrician and electrical manager with a strong background in commercial, public sector, and large scale projects. His practical, hands-on approach and commitment to high standards underpin the way we deliver every project.
Phase Electrical Engineering delivers complete electrical packages for office fit-outs and commercial developments, providing safe, compliant, and future ready installations.
Based in Aylesbury, we undertake all commercial and public sector work. Our services are available across Oxfordshire, Buckinghamshire, Hertfordshire and London.
Why Choose Phase Electrical Engineering?
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If you are planning an office fit-out, refurbishment, commercial development, or upgrades to existing electrical systems, speak to a reliable electrical contractor with proven commercial experience.