Extensions & Alterations

Do you need some extra space in your home without the cost and hassle of moving house? You may want a larger kitchen, an extra bedroom, a separate dining area or a conservatory.

Whatever type of extension you require JSM can help.

Free Quotes

Fully Insured

Over 15 years experience

Finance Available

Recent Projects

Client Reviews

We recently contacted JSM Building Maintenance to quote for our house extension. This is a family-owned business that takes pride in everything they do. From concept to design right through to installation and the finished product the team were helpful and explained everything professionally.


I've been working with the team at JSM for over 10 years now. They are a complete one stop shop and take care of all trades and project management from design through to completion.