Aluminium windows installation is a process that requires precision and correct alignment. The work starts with preparing the wall opening and confirming the window size. When the frame is fabricated, it is secured in place with recommended fasteners, then the glass is installed, and the joint is sealed. Each stage must be completed in the correct order to ensure the window is securely fitted within the opening.
Understanding Aluminium Window Systems
The parts are to be checked in terms of both their dimensional accuracy and the quality of finish, as well as their compatibility with the opening before the installation.
Typical window arrangements are:
- Fixed aluminium windows
- Sliding aluminium windows
- Casement aluminium windows
- Aluminium tilting and turning windows
Pre-Installation Requirements
Several preparatory steps must be made before the installation of aluminium windows:
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Site Assessment
The wall opening should be inspected in terms of:
- Structural stability
- Surface level and plumb
- Lack of cracks or water damage
Before the start of aluminium window fitting, any irregularities should be eliminated.
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Accurate Measurement
The measurements are to be taken at several points:
- Width (top, middle, bottom)
- Height (left, centre, right)
- Depth of the reveal
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Tools and Materials
Standard tools that are applied in the aluminium window installation are:
- Measuring tape and spirit level
- Drill and fixings
- Shims or packers
- Backer rods and silicone sealant
The materials should be compatible with aluminium surfaces.
Step-by-Step Aluminium Windows Installation Process
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Frame Positioning
The aluminium frame is fitted into the prepared opening and temporarily held by packers.
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Mechanical Fixing
Fixing points are placed as per the manufacturer’s requirements to avoid distortion of the frame.
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Glazing Installation
After the frame has been fastened, glazing units are fitted. It should be ensured that around the perimeter, there is no pressure.
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Sealing and Finishing
Appropriate silicone sealants are used to seal external and internal joints. This process finishes the aluminium windows installation, and continuity is achieved between the frame and the building envelope.
Aluminium Windows Fitting Standards and Compliance
Aluminum windows that adhere to industry standards and the local construction code should be installed. These typically cover:
- Structural loading
- Wind resistance
- Water tightness
- Due allowances associated with thermal expansion.
Installers must also adhere to installation manuals provided by the manufacturer to ensure that they are in line with the construction codes.
Common Installation Considerations
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Expansion and Movement
Temperature variations can cause aluminum to expand and contract. Adequate clearance gaps must be maintained to prevent frame stress or seal failure.
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Drainage and Ventilation
Most of the aluminium window systems have their drainage channels inbuilt. These should not be blocked when installing them to enable water to flow out properly.
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Surface Protection
Aluminium frames with protection films shall not be taken off until the installation is finished to prevent scratches or any other damage to the surface.
Choosing an Aluminium Windows Installer
An aluminium windows installer should have experience with the specific window system being installed. Familiarity with fixing methods, sealing techniques, and glazing procedures is essential for accurate execution. Installers must also be equipped to interpret technical drawings and manufacturer specifications.
Inspection and Final Checks
Upon installation of aluminium windows, some of the final checks that must be made include:
- Even movement of moving parts
- Appropriate alignment and sealing
- Uninterrupted sealant application
The installation of the aluminium windows is a process that is done in a systematic manner based on the specific measurements, proper method of fixing, and compliance with the technical standards. From the site preparation through to the final inspection, every phase of aluminium windows installation will add up to the proper integration of the window system into the building structure.






