Bournemouth · Poole · Christchurch
Transform Your Home with Expert Conversions & Extensions
Create more space, add value, and improve the way you live — without the stress of moving. We specialise in garage conversions, loft conversions, home extensions, and full renovations across Bournemouth, Poole, and surrounding areas.
- Create more space
- Add value
- Improve the way you live
About Us
The Big Conversion Company Ltd.
At The Big Conversion Company, we pride ourselves on delivering high-quality, reliable, and professional building services across Bournemouth and the surrounding areas. From Loft and Garage conversions to Home Extensions and bespoke Kitchen and Bathroom renovations, we’re here to help you transform your space with ease and confidence.
Guided by our values of craftsmanship, transparency, and genuine customer care, we make the process smooth and stress-free — treating every home as if it were our own. Your peace of mind is just as important to us as the finished result.
- Garage conversions
- Loft conversions
- Home extensions
- Kitchen renovations
- Bathroom renovations
- Full refurbishments
Our Services
Great Spaces From Concept To Creation
We specialise in garage conversions, loft conversions, home extensions and full renovations.
Garage Conversions
Turn unused space into a functional living area — often without the need for planning permission. Ideal for home offices, playrooms, guest bedrooms and annexe spaces.
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Home Extensions
Expand your home and completely change how you live. We deliver rear extensions, side extensions and open-plan kitchen living spaces.
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Completely upgrade your home to suit your lifestyle — full house refurbishments, layout reconfigurations, kitchen and bathroom upgrades.
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Loft Conversions
Maximise your home’s potential by transforming your loft into valuable living space. Perfect for additional bedrooms, en-suites and office space.
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What could your project cost?
Use our free cost calculators for an instant guide price — no details required.
- 18+
- Years In The Industry
- 200+
- Happy Clients
- 200+
- Projects Completed
- 10+
- Trained Staff
Why Choose Us
Choosing the right company can make or break your project
Detailed, upfront estimates
Providing detailed, upfront estimates — not vague pricing.
Trusted trades, high standards
Using trusted trades and maintaining high standards.
We deliver what we promise
Delivering exactly what we promised.
Efficient project management
Managing projects efficiently to minimise disruption.
Many of our clients come to us after receiving confusing or incomplete quotes — we do things differently by ensuring everything is considered from the start.
Additional Services
We Also Offer
The Big Conversion Company also offer additional services which may interest you. Our fully qualified team are able to carry out any sort of home renovation project.
Kitchen Renovations · Bathroom Renovations · Plumbing & Heating · Electrics · Roofing.
Our work
Current and completed projects
A selection of real projects carried out by our team across Bournemouth, Poole and Christchurch.
Don't Know Where To Start?
We are here to help. If you have any questions or want to enquire more regarding one of our services, then contact our team today.
Reviews
What Our Customers Have To Say!
Rated 5.0 from 18 Google reviews
“Excellent all round from start to finish , used twice now , highly recommended”
Richie
“Our extension looks amazing, the team were prompt, knowledgeable, tidy and efficient. Highly Recommend.”
Lorraine
“Matt at the Big Conversion company was great. His company installed our new kitchen for us. Work was completed on schedule to a high standard. He was friendly, polite and coordinated well with all the other contractors we were using.”
Gail Stuart
“Matt and his team have helped us out with a number of projects and each time they have delivered 100%. We had our main ensuite bathroom completely remodelled and then an extension to create a downstairs guest room with ensuite.”
Marcus Cahill
“Matt and co. converted our large garage into a granny flat with a full utility. Matt and his team were great at communicating through the whole development.”
Adam
“Matt was really responsive from the point of requesting & providing a quote for the works, tweaking the quote when we made changes, and fulfilling the job within the estimated time frame.”
Kieran McNeill
Frequently asked questions
Do I need planning permission for a garage conversion?
Do I need planning permission for a loft conversion?
Do I need planning permission for an extension?
How long does a garage conversion take?
How long does a loft conversion take?
How long does a home extension take?
Don't Know Where To Start?
We are here to help. Contact us today! If you have any questions or want to enquire more regarding one of our services, then contact our team today.