Sinclair & Jones Building Contractors Ltd




Home is where the heart is, but as your family grows or your circumstances change, you may begin to feel trapped due to a lack of space. This is where property extensions from our experienced team of builders come into their own. Typically built to the rear or side of your house, extensions increase the amount of space that you own. If you live in Haywards Heath, Hassocks, Horsham, Lewes, Burgess Hill or the surrounding areas, our team can provide a fully managed service – giving you a finished space that your family will love for years to come.

Renowned for cleanliness and customer service, our in-house builders provide property extensions in line with your budget and needs.

We provide the following benefits and services:

Whether you’re in Haywards Heath, Hassocks, Horsham, Lewes, Burgess Hill or across Sussex, our team ensures your property extensions meet a superior standard. Our ability to manage new builds means we can even handle multi-storey projects to completion.

Do you have questions about a building project? We are always willing to answer your questions and provide guidance on any building or renovation project.

Home Extensions


Extensions allow you to make better use of the surrounding land. They come in various sizes depending on feasibility and may need planning permission in some cases. As experienced builders, we can perform each task, guiding you through the process from the outset.

Enjoy More Space With Property Extensions

With land a premium and more of us working from home than ever before, there’s never been more reason to extend. Property extensions prove ideal when see clutter encroaching on your everyday life, and add to the home in a meaningful way. They can take the form of a home gym, a practical office, a single or double bedroom with en-suite facilities, or a creative play space for the kids when you need some downtime. No matter your needs, our team of builders provides exceptional customer service and attention to detail.

Property extensions can also add up to 20 per cent more to the value of your house. This makes them wise investments that pay off should you move from your Haywards Heath, Horsham, Hassocks, Lewes or Burgess Hill home.

Home Extensions

Built Bespoke for You

Unlike most rooms in the home, property extensions are designed around you and your family. Our in-house builders know that each person is different and will tailor their approach to suit your exact specifications. Be it an extended kitchen in Haywards Heath, a side-return sunroom in Horsham or an office in Hassocks, Lewes or the Burgess Hill area, we provide nearly all building services under one roof to cut down on fuss and delays.

Sinclair & Jones Building Contractors Ltd extends homes throughout Sussex. As with all of our services, we leave you with a tidy environment so that you can enjoy your new space from the moment of completion.

Free No Obligation Quote

Discuss property extensions for your home in Haywards Heath, Horsham, Lewes, Burgess Hill or the surrounding areas, speak with our team on