Extensions in Swindon
Craig Donnelly Building Contractors Ltd is a family-run building company specialising in house extensions, garage conversions, home renovations and structural alterations across Swindon and the surrounding Wiltshire area.
As winners of the LABC Building Excellence Regional Awards, we take pride in delivering high-quality building work, from single-storey rear extensions and garage conversions
to removing load-bearing walls and creating open-plan living spaces.
Already have planning permission or architectural drawings? Email your plans to info@craigdonnelly.co.uk for a free, no-obligation quotation.
Don't have architectural plans for your House Extension yet?
We also offer a complete Design and Build Service for house extensions in Swindon and the surrounding Wiltshire area.
Whether you already have plans or are just starting to consider a house extension in Swindon, contact us for a free, no-obligation quotation. We can help arrange everything from architectural drawings and planning applications through to the completed build.
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House Extension Builders in Swindon & Wiltshire
Craig Donnelly Building Contractors Ltd provides house extensions, garage conversions and structural alterations across Swindon and the surrounding Wiltshire area.
27–28 Commercial Road, Swindon SN1 5NS
Extensions & Building Services in Swindon

HOUSE EXTENSIONS IN SWINDON.
GARAGE CONVERSIONS IN SWINDON.
LOAD-BEARING WALL REMOVAL.
EXTENSION DESIGN & PLANNING APPLICATIONS.
Why Choose Us?
As experienced house extension builders in Swindon, Craig Donnelly Building Contractors Ltd specialises in single-storey and rear extensions, garage conversions and structural alterations throughout Swindon and Wiltshire. Our family-run building company offers a complete design and build service, helping you from your initial ideas and architectural drawings through planning applications to the finished extension.
We provide free, no-obligation quotations, comprehensive insurance and clear, legally binding building contracts for your peace of mind. Whether you already have plans or are just considering extending your home, contact us today to discuss your project.
