As a member of safe contractors we strive to for perfection in each and every project we take on

Building Services in London

Looking for a builder in London, any area of London or Middlesex? If you're in need of professional building services at highly affordable prices call us today! We here at O'Connor Building Services are part of a family run business and we are the ones to call for all aspects of building and roofing.

As builders in London we have over 25 years of experience and have established ourselves as a 'Member of Safe Contractors' and one of the most respected building firms around London.

About Us

For a general builder in London you can't go wrong choosing O'Connor Building Services. We are able to cover all aspects of building services from extensions, total refurbishments and external re-decoration of apartment blocks to the simple loft conversion. Being highly skilled and professional team we take pride in knowing that we will complete the job with the up most of professionalism.We work with local architects and various local authorities carrying out numerous projects ensuring they are carried out and completed to the highest possible standards.

Our Services

Offering you general building in London we have a complete range of building services which include;

  • Building Extensions
  • House Refurbishments
  • Disabled Adaptations
  • Roofing
  • Loft Conversions
  • Commercial Refurbishments


After Building extensions in London for over 20 years, we understand that making the most of your space is the No.1 priority. Being the prefered option to moving home in the current climate it is essential to maximise the area you have available. When working with our designers and architects a full range of eco friendly options will be offered to you saving you and the enviroment in the long run.

House Refurbishments

For refurbishments in London we have a dedicated team of designers and project managers who will look after every one of your needs and will make sure that your refurbishment is delivered on time and on budget.

Loft Conversions

We undertake loft conversions in London and throughout the surrounding areas too. We have an outstanding pedigree when it comes to designing your new loft, we aim to provide you with plenty of space light and minimise heat loss.

Professional Contractors

Being a builder in London we are members of 'Safe Contractors' and are part of a team of skilled contractors and craftsmen who will work with you to achieve the best results, no matter the building services your require. We will finish the job on time and leave the site tidy and safe.

Professional Cleaning Service

One thing we pride ourselves in, is the cleanliness of our work. Our tradespeople always leave your home looking as good as when we came into it. If there is a slight chance that your home needs cleaned we will take care of it. From the walls, the kitchen, the bathroom or the carpets, we will make sure they are expertly cleaned for you. We have a sister company based in Glasgow who do all our work for us. They only ever travel outside their area for other builders in the UK that they have an affiliation with but they do work in the Glasgow area. If you are in Glasgow and searching for carpet cleaners near me, then check out where they can do their cleaning work.

Client Testimonials

O'Connor Building Services performed our construction work, they also did the House Refurbishments, Loft Conversions and Extensions works in quick time, which was really helpful for us to complete our construction project as soon as possible. They had a quality and dedicated workers and also pre-planned execution on the work

Thompson, London

We thoroughly enjoyed working with O'Connor Building Services, for our building extension work. The management and the co-workers have a great co-operation and the workmanship was in a scheduled manner. We had no problem with their work and we like to recommend them for all your construction works too

William Connor, UK, Londen