"Construction on Site is pleased to offer their services for Great customers who wants to achieve their projects on a higher level than usual Construction companies offer! We do have the passion to create outstanding building work which will bring the benefit and enjoyment of the customer on a high level of quality and modern design! WE do Extensions, Lofts ,Roofing ,Full Refurbishment ,Kitchen and Bathrooms, Gas services ,Boilers, Plumbing and Heating ,Smart controls ,Electrics, Having more than 15 years experience and great customer reviews, we are here to help and we do Care for our reputation, we do care for our Customers and we do care to take the worries away and providing a great building experience! 

Trades offered

Garage Buildings/Garage Doors
Builder general
Loft conversions
Bathroom tiling
Bathroom fitter
Wet rooms
Bedroom fitter
Bedroom design
Brick work
Windows, Doors and Conservatories
Velux windows
Wooden/Timber/Sash windows
Window fitter
Bifold doors
Carpenter and Joiner
General carpentry
Dormer / Roof windows
Flat Roofing
Roofing general
Kitchen worktops
Bespoke kitchens
Kitchen installation
Kitchen design
Kitchen tiling

Case studies

Existing 1 bedroom flat-we achieved 2 bedroom flat with great garden design(landscaping)!

  • 14 Oct 2021
  • Harrow

Loft and height headroom adjustment!

  • 08 Aug 2020
  • North Harrow

See more case studies

Customer testimonials

25 Mar 2022

Highly recommend Construction on Site Ltd. They offered a wonderful, friendly and honest service which was refreshing. We required all plumbing checked and connected, boiler to be installed and heating tested. We were informed at every stage what work was being carried out, shown any issues discovered and offered solutions to the problems. The team were professional and caring in the work carried out and I would not hesitate to use them again. - Bhavik


20 Feb 2022

We have been using this builder for a number years for multiple projects. Always reliable - K furniture company ltd

North Harrow