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Expert new build services from London’s leading construction professionals.

At SLL Building Co., we specialise in delivering high-quality services for new build projects, including construction and finishing, across London and the M25 area.

Enquire about our New Build Service  for free today

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City And Guilds
Federation of Master Builders
Trustmark Government Endorsed Quality

We offer quick, trustworthy, and transparent new build construction services. Our experienced team ensures that every project is completed to the highest standards. We provide customers with a detailed breakdown of the building rates, giving you full clarity on costs from start to finish. If you require emergency building work, we can schedule and begin the project immediately.

0208 087 1923

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Custom Home Design

We specialise in creating tailored, high-quality homes from the ground up. Our expert team ensures every detail is meticulously crafted to reflect your unique vision and lifestyle.

Foundations & Groundwork

We provide expert groundwork and foundation solutions, ensuring a solid base for every project. Our team uses high-quality materials and precision techniques to guarantee durability and structural integrity.

Structural Framework

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We build strong, reliable structural frameworks using quality materials and expert craftsmanship—ensuring durability, stability, and full compliance with industry standards for every project.

Utility Installation

We handle the installation of essential utilities, including water, electricity, and drainage systems. Our team ensures efficient and reliable connections, meeting all safety and regulatory standards.

Landscaping

We create visually stunning and functional outdoor spaces, enhancing the beauty and usability of your property. Our landscaping services include hardscaping, planting, and tailored design solutions to suit your needs.

Interior Finishes

We deliver high-quality interior finishes that enhance the aesthetics and functionality of your space. From flooring and wall treatments to bespoke fittings, every detail is crafted to achieve a flawless and polished look.

Why Choose Us

Blue Print

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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