About Us

BAJ is an established privately owned family business with over 20 years experience in the supply and install of all types of aluminium and timber windows and doors. We are conveniently located in the Petersham area (outskirts of the city) and serve all the Sydney Metro area, central coast, Wollongong and Southern Highlands areas.

We provide ourselves on excellence and attention to detail from consultation, production through to installation and hand over. We ensure the project is run smoothly, on time and on budget. Our tradesmen are fully qualified and licensed with all appropriate insurances.

We are a leading replacement window business with clients ranging from private, commercial, builders, real estate and strata organisations. Contact BAJ for an obligation free quote on (02) 9560 4100 because…

“No job is too big or too small”

Our Installation Policy:
We are specialists in the supply and installation of windows and doors. We can install from one window to a complete block of windows.

Our installers are fully qualified and we always provide quality work and ensure high standards are maintained in all facets of our services from measure, fabrication, set up and installation services includes:

  • Survey Call: We take full responsibility of design, spec and material
  • Delivery: Windows stored in safe location on initial delivery
  • Reputation: We take remove window from wall and dispense of rubbish
  • Access: We protect all ground surfaces of internal work area with drop sheets
  • Installation: Install window to all current BCA and Australian Standards
  • Finishing off window internally and externally
  • Warranty: We guarantee a 7 year warranty

We have built our reputation based on providing quality workmanship along with professional and friendly service. We take the time to understand your needs so that we design, manufacture and install your windows that meet your needs, specifications and budget.