Home Extensions in Bournemouth, Poole & Christchurch
Expand your home and completely change how you live. We deliver rear extensions, side extensions and open-plan kitchen living spaces.
Expand Your Home Without the Stress of Moving
Looking for home extensions in Bournemouth? At The Big Conversion Company, we specialise in designing and building high-quality home extensions across Bournemouth, Poole, and Christchurch.
Whether you’re looking to create a larger kitchen, open-plan living space, or additional rooms, we provide a fully managed service from start to finish.
Book your free consultation The case for it
Why Choose a Home Extension?
A home extension allows you to transform how you live — without the cost and disruption of moving.
Perfect for
- Open-plan kitchen living areas
- Additional bedrooms
- Utility rooms
- Home offices
- Larger family spaces
- Increase property value
- Stay in the home you love
- Customise your layout to suit your lifestyle
- Create open-plan family living
Honest pricing
Home Extension Costs in Bournemouth
The cost of a home extension depends on size, design, and level of finish.
Small extension
£25,000 – £45,000
Medium extension
£45,000 – £80,000
Large / high-end extension
£80,000+
We focus on providing accurate, detailed estimates from the beginning, helping you avoid unexpected costs later in the project.
Types of Extensions We Build
Fully managed
What’s Included in Our Extensions
An extension is a full construction project, from the ground up. We run yours end to end — one team, one point of contact and one detailed written estimate covering:
- Groundworks and foundations
- Structural works and steel installation
- Brickwork and roofing
- Windows, doors, and bi-folds
- Plumbing and electrics
- Plastering and finishing
- Full project management
Why us
Why Choose The Big Conversion Company
- Honest and transparent pricing
- Detailed estimates (no hidden extras)
- High-quality workmanship
- Clean and organised sites
- Strong communication throughout
We understand how important it is to get your project right.
That’s why we focus on:
We aim to give you confidence from the start — not uncertainty.
Home Extensions Bournemouth & Surrounding Areas
- Bournemouth
- Poole
- Christchurch
- Wimborne
- New Milton
Recent Extension Projects
Get a Free Home Extension Quote
Our Process
Simple & Stress-Free
- 1
Initial consultation
Discuss your ideas and requirements.
- 2
Site visit
Assess your property and feasibility.
- 3
Detailed estimate
Clear breakdown of costs.
- 4
Design & planning support
If needed — we guide you through planning.
- 5
Build phase
Managed from start to finish.
