Don’t move, improve! If you’re settled in your dream home and neighbourhood, extend your property to solve space issues.


Do you want more living space without sacrifices in the garden? Convert your loft to realise your current structure’s potential.


If your property has fallen into a state of disrepair, our professional renovation work can make it safe and habitable once again.


From garage conversions to partition walls, learn more about the extensive range of building services we provide.

Kitchens and Bathrooms

Are you ready to make your dream kitchen or bathroom a reality? Find out how we bring ideas and concepts to life.


Builders in Maidstone, Canterbury, Medway, the Wider Kent Area

and Across the South East | Extension Specialists

Welcome to the South East Building Service website. We are a family-run building company specialising in property extensions. With time-served expertise, outstanding workmanship and unmatched customer care, we are the trusted choice for home improvement and development projects. In addition to extensions, our builders excel at a wide range of other services, including home renovations, property refurbishments and loft conversions. We also create stunning new kitchens and bathrooms.

Based in Maidstone, we cover the Medway region and locations across Kent. Our key service areas include Canterbury, Chatham, Cranbrook, Gillingham, Rainham, Sevenoaks, Tonbridge, Tunbridge Wells and West Malling, to name a few.

Our company has successfully traded in Kent, Essex and most of the South East for over 25 years. Your project is in safe hands with us.


While we specialise in house extensions, our team has the expertise to take on a wide range of home improvement work.


Our Services

From Canterbury to Medway, our Maidstone-based builders undertake the following services:

  • Property Extensions

  • Loft Conversions

  • Home Renovations

  • Property Refurbishments

  • Garage Conversions

  • Partition Walls

  • Bathroom Renovations

  • Kitchen Renovations

  • Concreting

  • Driveways and Patios

South East Building Service works alongside proven tradespeople that we know and trust for quality. These professionals carry out the electrical, plumbing and gas-related work involved in the above services. You can rest assured, they hold all relevant trade qualifications, including NICEIC certification and Gas Safe registration.

In addition to the physical construction, our team also provides start-to-finish project management. This includes advice, drawings, plans and the submission of your planning permission application, if needed.

You can view examples of our completed projects, and the standards of workmanship our builders achieve, on the Previous Work page.

To see how highly our previous customers in Canterbury, Maidstone, Medway and the wider Kent area rate our service and results, please read our testimonials.

About Us

Established in 1994, South East Building Service has a proven track record stretching back decades. In addition, our combined workforce shares over 100 years of trade experience. Our know-how and insights are integral to completing large-scale domestic projects on time and within budget.

From property extensions to loft conversions, and from home renovations to property refurbishments, we have completed countless projects across the South East. For your peace of mind, we can even arrange for viewings of work similar to your proposed project.

We understand how much time and thought you put into choosing your builders. Because we want you to have complete confidence with us from the outset, we hold membership with Checkatrade. This ensures you receive accurate, unedited reviews of our service.

kitchen new kitchenloft conversion with beamsshower room

South East Building Service is proud to hold approval from Kent Trading Standards. This demonstrates that, after independent vetting, we have shown our commitment to operating in an honest, fair and legal way.

In our role as builders, we deliver more than just bricks and mortar. We recognise the personal aspect of your project.

Be it property extensions in Maidstone, property refurbishments in Canterbury, home renovations in Medway or loft conversions anywhere else in Kent, our company designs a complete building package tailored to your exact needs.

South East Building Service operates with the appropriate levels of public and employer’s liability insurance. We honour the manufacturer’s guarantee on all products used and offer insurance-backed guarantees as part of the agreed building process.

Call 01622 741 239 to speak with one of our builders. We provide fully costed and scheduled quotations for projects in Maidstone, Canterbury, Medway and locations across Kent.