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.


Graeme and Nicole

John is an amazing character with a strong family and team behind him. From the very start our minds were put at ease by John and his professional attitude towards the extension we wanted built. The standard of service and work provided by John and his team was excellent and the finish product is a home that we love.  Every step of the build was explained and if ever there was question we wanted answered, John and his team were only a phone call away.…


John O’Connell was recommended to me by a friend and I am so glad that I chose them to renovate my home. After meeting John and discussing the project, he made further suggestions on how I could benefit more from the renovation work, and his ideas where fantastic! He suggested putting in under floor heating and recommended a shade of paint that would look nice on the window ledges. His professional opinion gave me confidence that he knew exactly what he was doing. I listened…


Once moved into our new house, one of the first things we decided was that we needed to have a garage built. Not only to house one of the cars, but be used as a store for garden tools etc. We obtained planning permission and asked John O’Connell to quote. John arrived at our house and we discussed the plans, showed him the site for the garage and almost by return sent us a very detailed and professional quotation for the work required. Prior to…

Latest News

Struggling for space in your home but not sure where to extend?
Struggling for space in your home but not sure where to extend?
Extending your home is a great way to add value to your property whilst creating new living space but deciding…
Get a bathroom that’s fresh!
Get a bathroom that’s fresh!
As we leave summer behind and creep into autumn, it’s nice to give our homes a little update and refresh…
Thinking of Selling? 5 Reasons to Consider a Loft Conversion Instead
Thinking of Selling? 5 Reasons to Consider a Loft Conversion Instead
Here at John O’ Connell, we LOVE loft conversions, not only do we think they look great, but they offer…
Magazine Feature Essex Building Services

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.