Specialists in residential extensions & conversions in Southampton

Combining our expertise and knowledge to manage and take care of all your home improvement projects.

Contact us today:

023 8043 6349

Our step-by-step approach

From the moment you contact us, we can help you through every stage of the project.

1 | After receiving your initial enquiry, we will coordinate with you to ensure you have the appropriate plans and building regulations in place. We can recommend an architect to assist you with this if required.

2 | Once we’ve checked you have everything necessary, we will work out a date with you to set up a site visit.

3 | Following on from the site visit, we will send you a personalised estimate with a detailed breakdown of each stage of the project.

4 | On acceptance of the estimate, we will coordinate with you to book your job start date.

Garage conversion from motorbike workshop to massage studio...

Matt and the team were absolutely brilliant throughout the entire process. They were respectful, diligent and hard working.
The finished studio is absolutely stunning and I couldn’t be happier with it. Thanks guys!


There are many benefits to adding more room to your home. As well as increasing the value of your property, you can choose to extend your kitchen, install a new family room or make the most of your loft space by adding an extra bedroom complete with en-suite.

Extension Services

Are you struggling for storage, or do you require a guest bedroom or perhaps another bathroom? Whatever your reasons for increasing your living space, extending your home gives you many options without the hassle of moving.

Loft Conversion En-Suite
Loft Conversions

Loft conversions are a great way of utilising your existing living space, without the cost of a full extension. What’s more, you can allow more natural light into your home as you won’t have other properties blocking your windows.

Home Refurbishment
Home Refurbishments

If your property is in need of a major update or you feel like you’re living in the past, MJS Construction Group can help you improve the aesthetics of your home, freshening up your living space and modernising it quickly and efficiently.

Garage Conversions

Garage conversions are a quick and relatively inexpensive way of gaining additional living space. If you’re looking to create that home office, utility room, additional bedroom, gym or even a bar, MJS Construction Group can help.

Trusted by the best

Contact us today for a quote

Contact us today to book your site visit. We will assess the work required and give you an idea of the costs involved to get your project underway.