From Concept To Completion

London based construction specialists in extensions, conversions and refurbishments, handled from start to finish.

We are a London-based construction company specialising in extensions, conversions, and refurbishments. From planning and council approvals to building control and project delivery, we manage every stage of your build. Our goal is to make the process simple and stress-free, delivering high-quality results on time and on budget.

At G&S Construction we specialise in

  • Residential and commercial extensions

  • Loft and basement conversions

  • Full property refurbishments

  • Office and commercial fit-outs

  • Open-plan and multi storey designs

01 / About Us

Our core values

Craftsmanship

We take pride in every detail, delivering extensions, refurbishments, and conversions with care, precision, and lasting quality.

Accountability

We stand by our work and promises, ensuring clear communication and full transparency throughout your project.

Innovation

We bring fresh ideas and smart solutions to every project, tailoring our approach to fit your unique needs.

Our Services

Conversions

Extensions

Refurbishments

Our client testimonials

  • "From planning to completion, they handled everything seamlessly. Our home extension turned out better than we imagined stress free and on time!" — Emma L.

  • "Professional, efficient, and detail oriented. They managed the entire refurbishment process, including planning approval, with zero hassle for us."-Jacob R.

  • "We had a loft conversion done, and the results are outstanding. The team took care of all the planning and kept us informed every step of the way."-Max L.

  • "Brilliant service from start to finish. They took care of all the paperwork and planning, and the quality of the extension is top-notch."-Barry T.

Get Started In 3 Easy Steps

01

Get In Touch

Fill out your details in the form below

02

Let’s Design

After our free site visit we will build you a FREE bespoke quote

03

We’ll Get Started

The work begins!

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