About Us
ACT is a leading main contractor for super-prime London residential projects, founded on craftsmanship, teamwork and a can-do approach.
ACT builds, renovates and cares for exceptional and often historic homes, taking great pride in our craft.
We support clients through every stage of their property journey, from full structural renovations to bespoke upgrades. Whether adding a basement, restoring a listed building or crafting a grand staircase, we assemble expert artisans to deliver exceptional results — on time and within budget.
Why ACT?
‘A’ pays tribute to our Artisans
Exceptional attention to detail is the thread that runs through every ACT project. We directly employ our own craftspeople who excel in their specialist trades, backed up by a trusted network of carefully vetted suppliers who share our commitment to the highest quality standards.
‘C’ is our Can-do approach
We listen to and deliver on what matters most to you. Should your plans evolve as the project progresses, ACT is ready to respond with proactive solutions. Our can-do mindset has earned us a reputation for excelling on demanding projects, underpinned by careful planning and high standards of communication and commitment.
‘T’ is because we work Together
Behind each beautifully finished home is an enjoyable journey to get there. ACT aims to enrich your construction experience at every step through our highly collaborative approach. We are proud to work closely with leading architects, interior designers, cost consultants, structural engineers and project advisors.
Our Story
“Much more than just statements, our mission and values are the heart and soul of our organisation and are reflected in the daily actions of our team.”
- Alister and Cameron de Wys, Directors
ACT Careers
Frequently Asked Questions
ACT builds, renovates and cares for London’s finest homes. From large-scale structural works and full-home transformations to meticulous room renovations and bespoke aftercare, we support every stage of the property journey. Our team excels at delivering bespoke homes that meet the highest standards of quality and precision.
ACT has extensive experience in delivering high-end residential projects within conservation areas and on listed buildings, ensuring compliance with strict heritage regulations and balancing innovation with tradition. Our expertise includes full-scale refurbishments of Grade II listed properties, where we carefully upgrade interiors while preserving historical integrity. With a deep respect for architectural heritage, ACT takes great pride in showcasing period features whilst introducing modern enhancements to maximise functionality and comfort.
At ACT, quality isn’t just controlled – it’s planned.
Our structured Action Plans guide every stage of the project, from Pre-Construction and Design Management to Manufacturing, Installation, Handover and Aftercare. These set clear milestones to ensure consistent quality and defect-free delivery.
Each project is led by experienced site teams, disciplined project management and regular quality inspections – allowing us to anticipate issues, resolve them early, and uphold the highest standards throughout.
Please see our portfolio and case studies pages for examples of our construction work. During the early engagement stages with prospective clients we can arrange a viewing of a completed property to demonstrate the quality of our finishes and the scale of our projects in person. It is a privilege when our clients allow access back into their homes. Our live projects are also available to meet the team and witness quality in action!
Safety is our top priority. ACT is an SSIP (Safety Schemes in Procurement) accredited contractor, demonstrating that our health and safety management processes meet industry standards. We adhere to rigorous health and safety standards, conduct regular site inspections, and provide comprehensive training to all employees. Our commitment to a safe working environment ensures the wellbeing of our team and the quality of our projects.
Yes, we have established relationships with some of London’s leading architects, interior designers, cost consultants, structural engineers and project advisors. We are happy to recommend trusted professionals who align with your project’s style and requirements.
Yes, our commitment doesn’t end when the project is complete. We offer a comprehensive, tailored aftercare service to ensure your home remains in pristine condition. Our skilled technicians, already familiar with the property’s infrastructure, quickly diagnose and resolve any issues, preserving essential systems and high-quality finishes while ensuring warranties remain valid.
Delivering Beautifully Finished Homes
ACT is a leading main contractor for super-prime residential construction, refurbishment and aftercare. We deliver outstanding results and a positive, collaborative construction experience in London’s most prestigious postcodes.