Design and Building Excellence

Who We Are

At GSJ Renovation & Building, we’re a family-run business based in the beautiful Charente-Maritime region near Saint-Savinien (17350). With more than 40 years of experience, we deliver high-quality construction, plastering, and renovation services for homes of all styles and sizes.

As a bilingual team fluent in both English and French, we make the process smooth and stress-free for local and international clients alike. Whether you’re planning a renovation, extension, or full restoration, we guide you through every step—from design and planning to the final details. Thanks to our trusted network of suppliers, we can source premium materials at competitive prices, keeping your project on budget without compromising on quality.

Originally from the UK, we’ve worked across the UK, Holland, Germany, Australia, and now France. This global experience gives us a fresh perspective and an innovative approach to building and design—bringing ideas and techniques that make your project truly stand out in Charente-Maritime.

Our Expertise

We take on a wide range of domestic projects, including:

Extensions – Expanding your living space to fit your lifestyle.
Renovations – Refreshing your property while preserving its character.
Bathrooms & Kitchens – Functional, stylish spaces designed around you.
Outdoor Projects – Decks, pergolas, pools, and more for perfect outdoor living.
Loft Conversions – Turning unused attic space into something special.
Basements & Cellars – Transforming underused areas into functional rooms.
Cinema Rooms – Bespoke home cinema experiences tailored to your space.
Stone Masonry – Crafting and restoring with traditional local stone.

We’re especially passionate about renovating Charentaise cottages, restoring them with care so they keep their original charm while gaining the comfort and efficiency of modern living.

Our outdoor services also include landscaping, new window and door openings, and custom garden structures built to complement your home.

Our Services

Whether you need a complete design-and-build service or are already working with an architect or designer, we’ll collaborate closely with you to bring your vision to life. Every project is handled with precision, communication, and respect for your home.

Peace of Mind

All work carried out by GSJ Renovation & Building is fully insured and protected by a 10-year guarantee, backed by decennial insurance and public liability coverage. You can rest easy knowing your project is in safe, reliable hands.

See Our Work

The best way to understand the quality of what we do is to see it for yourself. If you’d like to view some of our completed projects or discuss your renovation ideas, get in touch. We’d be happy to arrange a visit or provide references so you can feel confident you’re choosing the right team.