Our Promise

When you work with John O’Connell as your construction specialist, you can be assured that we are a Constructionline accredited contractor and approved for Local Authority contracts. We promise to minimise disruption, respect your surroundings, work to safe and clean standards and provide a superior service within your budget. We understand that it’s not just a building contract, it’s your home

Exclusive design

If you are extending your property or designing a new build.

Professional Team

We are proud of our amicable, professional and always developing team!

Reasonable Prices

All our work is fully insured and guaranteed and we never rely on estimates.


Angela & Sergi

Fantastic Attention to Detail in Both Planning and Implementation We would like to thank John and the team for transforming our property over the last few months. John O’Connell has provided us with a beautiful office space in our garden, which has allowed us to combine our work and family life and gain back our third bedroom whilst expanding our business. In addition to the garden office, the team have provided us with a large outdoor recreational space in the form of a patio area…

Professional and Caring Approach

The friendly, and at times jokey demeanour of its principal belies the professional and caring approach of this company, with an overarching concern to maintain high standards of workmanship that were given to the work. Our project, which involved a wide variety of trades, was completed smoothly, without drama or undue delay despite unforeseen setbacks. We lost one day of use of our main facility through no fault of the company (It was British Gas’ fault!). What was important was that most requests for changes…

Competitive, Courteous and Professional

John O’Connell Building Services were recommended to us via our neighbours and we were certainly not disappointed. They provided an excellent, competitive, courteous, professional service throughout the build of our Granny Annexe. On the odd occasion, and it was only the odd occasion that concerns or issues arose, John and his team dealt with these immediately without question or hesitation and even worked with us on a number of changes that we implemented whilst the building was progressing. As a result of the high quality…

Latest News

Mediterranean Design Tips for Your Home
Mediterranean Design Tips for Your Home
Don’t you just love going on holiday and staying in a marvellous villa or hotel that boasts glamorous Mediterranean décor,…
Connecting Your Home and Garden
Connecting Your Home and Garden
Top tips from our team of in-house designers and landscapers on how to bring the outside indoors and create relaxing,…
Creating Beautiful Garden Buildings: Our Top 5 Ideas
Creating Beautiful Garden Buildings: Our Top 5 Ideas
Add additional living space in unused areas of your garden with these 5 great garden building ideas

Essential Kitchen Bathroom Bedroom Magazine Feature

Just look at this stunning Kitchen & Family Room Extension, featured in Essential Kitchen Bathroom Bedroom Magazine, for which we were delighted to be the main contractor. Kitchen by Davonport, accessories from Jim Lawrence.