House Extensions, Garage Conversions, Summer Houses & Garden Offices in Kent
HB Groundwork & Construction Ltd – Builders You Can Trust in Tonbridge, Kent & Across the South East
At HB Groundwork & Construction Ltd, we specialise in creating high-quality, functional, and beautifully finished living spaces that enhance your home and lifestyle. Based in Tonbridge, Kent, we proudly design and construct house extensions, garage conversions, summer houses and garden offices for homeowners across Kent and the South East.
With years of experience in groundwork, construction, drainage, and structural support, our team provides a complete, start-to-finish service – from foundations to finishing touches. As owner-operator, Henry Beeney works on every project, ensuring clear communication, honest advice, and exceptional workmanship throughout.
Our Building & Extension Services
House Extensions
Add valuable living space, increase your property’s value, and create a home that truly works for your family.
We build all types of extensions, including:
- Single-storey rear extensions
- Side return extensions
- Wrap-around extensions
- Kitchen and dining room expansions
- Porch extensions
- Utility room additions
Our team manages everything: groundworks, drainage, foundations, brickwork, insulation, concrete bases, and structural support. We work closely with you and your architect to ensure your extension is built safely, efficiently and to the highest standard.
Garage Conversions
Transform unused or outdated garage space into something practical and modern. Common conversions include:
- Home office or workspace
- Guest bedroom
- Children’s playroom
- Gym or hobby room
- Utility or boot room
We take care of all preparation, insulation, structural work, flooring, drainage and finishing – delivering a warm, fully functional room that blends seamlessly with your home.
Garden Offices & Outdoor Rooms
Create a peaceful, private workspace right in your garden. Our garden offices are ideal for:
- Working from home
- Creative studios
- Therapy rooms
- Meeting rooms
- Small business spaces
We design and build garden offices on solid foundations with full insulation, electrics (via certified electrician), and durable finishes that stand the test of time.
Summer Houses & Timber Outbuildings
Enjoy your garden year-round with a beautifully built summer house. Perfect for:
- Relaxation and entertainment
- Guest accommodation
- Garden bars
- Games rooms
- Studio spaces
We offer bespoke designs, high-quality timber, professionally installed bases, drainage solutions, and a complete installation service.
Our Build Process
Consultation & Quote
We visit your property, listen to your ideas, assess the site and provide a clear, competitive estimate.
Planning & Design Support
We advise on construction methods, materials, drainage, regulations and layout to ensure your build meets all requirements.
Groundworks & Preparation
Every successful project starts with a solid base – we handle excavation, foundations, drainage and structural groundwork.
Construction & Installation
From brickwork and carpentry to concrete, timber, cladding and finishes, we build everything to a high standard with meticulous attention to detail.
Finishing & Aftercare
We leave the site tidy, ensure you’re happy with the finished result, and remain available for aftercare or advice.
Why Choose HB Groundwork & Construction Ltd?
- Experienced, local specialists covering Tonbridge, Tunbridge Wells, Sevenoaks, Maidstone, Ashford & beyond
- Owner-operated – Henry works personally on every project
- Fully insured for peace of mind
- Free, no-obligation site visits & quotes
- Domestic & commercial projects welcomed
- Transparent communication from first call to completion
- Checkatrade member with verified reviews
- Expert groundworks including drainage, foundations, concrete bases & site preparation
- High-quality craftsmanship built to last
Proudly Serving Kent & the South East
We work throughout:
Tonbridge, Tunbridge Wells, Sevenoaks, Maidstone, Ashford, Folkestone, Dover, Medway and surrounding areas.
If you’re looking for a trusted, skilled team to build your extension, convert your garage, or create a bespoke garden room – HB Groundwork & Construction Ltd is here to help.
Ready to Transform Your Home?
Call Henry today for a free estimate:
Or send us a message and we’ll arrange a convenient time to visit your property.