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Tailored Commercial Solutions Crafted by Industry Experts

We deliver high-quality commercial construction solutions tailored to your business needs. From concept to completion, SLL Building Co. ensures precision, durability, and efficiency, focusing on exceptional craftsmanship and personalized service across London and surrounding areas.

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City And Guilds
Federation of Master Builders
Trustmark Government Endorsed Quality

We provide expert commercial construction services, tailoring each project to your business needs. From initial planning to final execution, our skilled team ensures top-quality workmanship, efficiency, and attention to detail. With clear communication and a commitment to excellence, we deliver results that enhance your commercial space.

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Educational Facilities


We provide functional and efficient educational spaces, ensuring safety and compliance. Our team handles installations and optimises spaces to support effective learning environments.

Retail Spaces

We create practical and functional retail spaces, focusing on layout and usability. Our team ensures efficient setups that enhance customer experience and support your business’s needs.

Office Solutions

We offer office solutions that boost productivity and comfort. Our team delivers efficient layouts and incorporates modern features to improve workflow and employee satisfaction.

Industrial Projects


We manage industrial projects with precision, focusing on functionality, durability, and compliance while delivering cost-effective solutions tailored to your operational needs.

Hospitality Developments

We design hospitality spaces that elevate guest experience, ensure efficiency, meet industry standards, and support comfort, service, and durability.

Healthcare Spaces

We design healthcare spaces focused on patient care, staff efficiency, regulatory compliance, and creating functional, comfortable environments for all users.

Why Choose Us

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40 Years Experience

Rely on our seasoned expertise. Your vision, our commitment - a legacy built on precision and satisfaction.


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7 Days a Week

We’re here when you need us, offering flexible and reliable service every day of the week.


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Reliable & Credible


Trust in our reputation for delivering exceptional results, every time.​​


Free Quotes & Consultations

No pressure, just expert advice. Get a free quote and consultation to start your project with confidence.
 

Workers in Building Site

Wraparound Extension – Sarah L.

(Wimbledon, London)​​​

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We had a wraparound extension done on our Victorian semi, and we couldn’t be happier with the result. From planning permission to final finishes, everything was handled professionally and on time. The team was tidy, polite, and always communicative. Our kitchen and dining space are now bright, open, and exactly what we imagined. Highly recommend for anyone considering a home extension.

HMO Conversion – James K. (Croydon)

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I hired a team for a full HMO conversion of a 5-bedroom house, and they delivered beyond expectations. They handled the project end-to-end — fire regulations, soundproofing, en-suites, and even the planning with the council. What impressed me most was their understanding of compliance and investment returns. The work was high quality and completed within budget. As a landlord, finding a reliable team like this is gold.

Basement, Loft & Rear Extension – Priya D. (Dulwich Village, South London)

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We undertook a major renovation — basement dig, loft conversion, rear extension, and a full-house refurb. A huge project! The project manager kept everything on track and transparent. We lived off-site during the work, but they sent regular updates and even helped with finishes selection. The craftsmanship is excellent, and the house feels brand new but still full of character. We’ve had so many compliments.

Client Feedback



We take pride in delivering top-tier property maintenance services to clients throughout London.




 

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