Extensions
Building Services
Extensions & Building Work Across Kent
Macavis carries out all types of extension projects across Kent, working on residential, commercial and other properties. Whether you’re adding a new kitchen, creating additional living or working space, installing new toilets or extending an existing building, we provide the construction and groundwork needed to make the project happen. Our work covers much more than the extension itself. We can take care of the groundwork, foundations, drainage and associated external works, as well as the structural construction of the new space. Where a project requires new or altered drainage systems, including cesspits and other site-specific solutions, we have the experience and equipment to carry out the work. Every project has different requirements, so we work from the plans and specifications to provide the construction work needed for the individual property. From the initial site preparation through to the completion of the build, we can manage the key construction stages as one team. A successful extension involves more than simply adding to an existing building. The groundwork, foundations, drainage and connection to the existing property all need to work together as part of the overall project. With our experience in both groundwork and construction, we can take care of these elements as part of the build.

Our past projects
Construction craftsmanship that stands the test of time.
Customer Testimonials
See what our clients say about our services.
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Extensions Done Right – Professional Construction Across Kent
Over 15 years, we've completed hundreds of extensions across Dover, Deal, Canterbury, and East Kent. Our family-run approach combines quality craftsmanship with genuine respect for your home and daily routine. From initial design advice through Building Control completion, we deliver extensions that genuinely transform how you live.

Primary aggregates
Bulk lorries, bagged options, or loose loads. We adapt to how you work.

Recycled materials
We carry in stock 6F5, Type 1, Plainings and much more. Our materials are tested each month to ensure compliance

Flexible delivery
Primary and recycled aggregates sourced locally, delivered fresh to your site

Safety assured
CHAS and CITB accredited. Every delivery handled by trained professionals.
Get in touch
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