
Northumberland Place
Creative and cost-efficient extensions with expert advice and design ideas, fitting within budget and time limits, ensuring the finest quality result and maintaining the highest standards of safety.
Keystone Building Restoration Ltd · Company 10389027
Active, accounts up to date·main contractor & subcontractor·Head office London
Keystone Building Restoration has been a prominent player in the construction industry for over two decades, amassing extensive experience in tackling large and complex projects. They pride themselves on combining technical knowledge with enthusiasm to deliver high-quality results. Each project is managed by an SSSTS qualified project manager, ensuring meticulous oversight from inception to completion, adhering strictly to budget and timeline constraints.
As a trusted partner to many interior designers and architects, Keystone Building Restoration consistently exceeds client expectations. They maintain a flawless track record for completing projects on time and within budget, underpinned by a thorough initial assessment of client needs, realization timelines, and financial considerations. Safety is paramount, with rigorous measures in place to ensure a healthy and secure working environment for employees and all stakeholders.
The company specializes in structural alterations and conversions, offering expertise from initial building analysis through to demolition and construction. They also provide high-level basement construction services, integrating modern technologies with stringent safety standards. Furthermore, Keystone Building Restoration excels in creating bespoke extensions and undertaking comprehensive refurbishments, aiming to enhance property value and aesthetics.
Their commercial fit-out services are designed to be practical and efficient, meeting client needs while ensuring cost-effectiveness and timely completion.

Creative and cost-efficient extensions with expert advice and design ideas, fitting within budget and time limits, ensuring the finest quality result and maintaining the highest standards of safety.

Practical and efficient fit-outs for properties, offering thorough expertise and skilled workmanship in building and designing the final result to ensure the project is cost-efficient and completed on time, while complying with clients' needs.
This profile was compiled from public records. Claim it to add the things buyers ask for:
Keystone Building Restoration Ltd offers a comprehensive range of building services including structural alterations, basement construction, extensions, refurbishments, and commercial fit-outs. With over twenty years of experience, they focus on quality, safety, and client satisfaction. Their listed services include Refurbishment, Extensions, Basement works, Fit-out & interiors and Carpentry & joinery.
Keystone Building Restoration Ltd is registered at Railway Arch 11 Kingsdown Close, London, W10 6SW, in London.
Keystone Building Restoration Ltd states that it works across London.
Accounts filed for the year to 2025 report 4 employees, which places the company in the 1-9 employees band.
Companies House lists Keystone Building Restoration Ltd as active, with accounts most recently made up to 2025-08-31.
Keystone Building Restoration Ltd works in Residential and Commercial.
Keystone Building Restoration Ltd was incorporated on 2016-09-22.
Planyard keeps budgets, committed costs and variations live, so the figure in front of you is today's rather than last month's.