A London Construction and Renovation company

offering high quality services.

Cornersttone is a leading design and build company based in London that specializes in both residential and commercial projects. As a construction company, we have worked on a variety of construction projects in London, including, home and apartment construction, loft and basement conversions, and refurbishment work.

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Successfully completed projects across various sectors.

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Building a greener future with every project.

Crafting Quality, Building Trust.

Our Solutions

Whether you are looking to expand, renovate, or maintain your property, Cornersttone provides a complete suite of services tailored to your vision. Each solution is delivered by our team of master craftsmen and managed with a seamless, end-to-end approach, ensuring flawless results that bring your home to life.

Loft Conversions

Loft conversions are a great way of adding space to your home while being easy and practical. We’ll assist you throughout the entire process, from beginning to end.

House Renovations & Refurbishments

Our expertise can help you get the most out of your home. No matter what kind of remodel or restructuring your home needs, we have the expertise you need.

House Extensions

We operate throughout the entire project lifecycle, from design to build to aftercare. With our help you’ll be guided through the planning stages, compliance with building regulations, and budgeting for any extension plan

Property Maintenance

We offer and deliver individual packages for each client. Services may vary e.g. plumbing, electrics, painting and decorating, landlord services. Our services to clients have same approach regarding quality and cost-efficiency, no matter  it is a small residential project or a large property.

Questions? Contact Us!

Contact us via WhatsApp or email, and our team of experts will respond promptly. Your satisfaction is our priority, and we’re ready to offer the support you need to optimize your time.

Our Certificates

Our commitment to excellence is backed by the industry’s most respected certifications. These partnerships guarantee that our team is qualified, our methods are regulated, and your project is in the safest hands.

FEDERATION OF MASTER BUILDERS

The Federation of Master Builders (FMB) is the UK’s largest construction industry trade association, representing primarily small and medium-sized construction businesses (SMEs). It serves to support and promote master builders by ensuring quality standards and ethical business practices.

TRUSTMARK / TRADING STANDARDS APPROVED

TRUSTMARK and Trading Standards Approved designations are quality marks that indicate a business has met specific standards for technical competence, trading practices, and customer service, especially for work done in and around the home.

CHECKATRADE

We are proud to be a certified member of Checkatrade, the UK’s leading directory of vetted and recommended tradespeople. Being part of Checkatrade means our business has been thoroughly checked, verified, and continuously monitored to meet the highest standards of quality, reliability, and customer service.

What our customers say

TESTIMONIALS

Our client’s satisfaction is our greatest achievement. Check out some testimonials below from clients who trusted our services and discovered how we can transform the way they do work. These stories reflect the quality, dedication, and results we deliver, and we look forward to helping you too!

Extremely professional team...

“They gave me a lot of confidence and followed exactly as planned in the construction schedule.”

Bruna Mauch

Excellent service...

“I really liked the final result, they really delivered a quality finish that surprised me.”

William Smith

Reliable and error-free...

“They presented me with a link where I could follow what was happening in my work on a daily basis, I thought it was fantastic.”

Sybil Foroozan

They were very attentive..

“I received excellent service from the first contact, the team of bricklayers are well organized and clean.”

Taraneh Gourkhede

Our work in progress

We offer tailored solutions for each client, ensuring that our services meet the specific needs of your project.