• Free Consultation Visit

    We offer a free consultation visit and listen to your initial ideas and requirements then discuss with you the most suitable cost effective extension.

    read more
  • New Builds

    ATJ building and groundworks offer fantastic new build and extension services.

    read more

Who are ATJ


With over 25 years experience in the building industry, ATJ Building & Groundworks is a family run business with a reputation for quality.

Our experience, technical expertise and team of highly skilled craftsmen enable us to provide our clients with the highest levels of service and satisfaction that you would expect from the best builders. Building projects include:

View About Us

ATJ services


Operating throughout and around Northamptonshire, we pride ourselves on delivering high quality building and groundworks projects, on time and on budget.

Due to our technical expertise we are often asked to tackle large-scale, complicated building projects in addition to our groundwork and building contracts and we are proud of the reputation we have built up within this field. Services include:

View All Services

Why choose us


ATJ Building & Groundworks is one of Northamptonshire's leading construction companies. Our background and expertise in demolition and building had enabled us to build up a large and loyal client base and we guarantee the highest standard of workmanship across our comprehensive services.

ATJ Builders are Northampton's premier building contractors for both commercial and domestic work and some of the work we've undertaken over recent years is shown in our gallery.

View Case Studies