Aluminium Windows & Doors Installation
When you’re deciding to install aluminium windows and doors, it’s not just about choosing the right style or colour — the installation process plays a crucial role in performance, weatherproofing, safety, and longevity. At Accend Aluminium & Glass (2AG) based in Roodepoort and Randburg, we pride ourselves not only on the quality of our products but also on how they are fitted. Here is a detailed look at the process, and what clients should expect.
What Makes Accend Aluminium & Glass Stand Out
Before diving into the steps, it’s helpful to understand what products and guarantees 2AG offers, since these influence the installation process:
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We manufacture and supply a wide range of Aluminium Windows including casement, sliding, fixed-pane, stacking windows etc. 2AG
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We offer various types of Aluminium Doors — folding, sliding, hinged, etc. 2AG
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We also install all our products and provide guarantees with that installation. 2AG+1
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Our services also include double-glazed aluminium windows, which have special considerations for installation to ensure proper insulation and sealing. 2AG+1
The Installation Process
Below is a breakdown of stages for installing aluminium windows and doors, as practiced (or expected) by professional installers like Accend Aluminium & Glass. The specifics can vary depending on site conditions, type of opening, style of window/door, and whether it’s new construction or retrofit.
Pre-Installation Planning and Preparation
Before any installation work begins, proper planning is essential.
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Site inspection & measurement
The installer visits the site to confirm the dimensions of openings (width, height, depth), check the structural soundness of the wall, lintels, sill, etc. If replacing existing windows or doors, see whether the frame will stay (retrofit) or be removed entirely. -
Choice of window/door style and glazing
Options (fixed, sliding, casement, folding, stacking) affect frame design, how weight will be carried, sill design, drainage etc. If double glazing is involved, ensuring proper frame depth, weights, sealing and thermal breaks. Accend’s Guide to Double Glazed Aluminium Windows in Randburg demonstrates how double glazing is integrated considering both performance and aesthetics. 2AG -
Material and profile selection
Aluminium frames come in different profiles, finishes, thermal breaks, hardware quality. Selection must also match building codes and climate (especially for Roodepoort/Randburg where weather, wind, rain are factors). -
Permits & compliance
Ensuring the installation meets local building regulations, wind load requirements in Johannesburg area, safety standards, etc.
Removal (if applicable) and Preparation of Opening
If replacing windows/doors or doing retrofit work:
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Removal of existing frame, sashes, old glazing. Clean up opening: remove debris, old sealant, rust, etc.
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Check and repair masonry, plaster or concrete edges. Ensure surfaces are sound, dry, level, and straight.
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If required, apply damp-proof course (DPC) or flashing at sill, head or jamb to prevent moisture ingress.
Frame Installation
This is a critical phase. If the frame is not installed correctly, alignment, sealing, and performance suffer.
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Frame positioning
The new aluminium frame is placed into the prepared opening. Use packers (shims) under the sill and behind jambs and head to ensure it is plumb (vertical), level, and square (so that diagonals are equal). -
Fixing & anchoring
Once aligned, the frame is fixed to the wall/structure. Fixing points are usually at set distances from corners and along the sides (for stability). Care must be taken not to overtighten fasteners so the frame is not distorted. -
Sealing & weatherproofing at the sill and around the perimeter
The sill (bottom frame) may need to be sealed with silicone or appropriate sealants. At the back of the sill, use flashing or sealant to prevent water running along the structure. -
Drainage design
Profiles often include weep holes or drainage slots. These must be properly installed, not blocked, and directed so that any water entering frame drains away.
Glazing & Fitting Sashes / Doors
Once the frame is installed:
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Glass installation
Place glazing units (single, double or triple glazed as specified) into the frame, using glass packers to ensure correct spacing from frame to avoid point loads or glass breakage. Secure glazing beads or stops. Ensure glazing gaskets or seals are properly seated. -
Install sashes or door leaves
For windows: casement or sliding sashes; for doors: door panels, leaves, folding/sliding door panels etc. Check that moving parts are aligned, operate smoothly, close and latch properly. -
Hardware fitting
Hinges, locks, handles, rollers, guides, weather seals around sashes and doors. Adjust for proper alignment and operation. For example, ensure that hinges do not sag, that the locking mechanism aligns with keepers etc.
Sealing, Finishing & Quality Assurance
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Perimeter sealing
Between outer frame and the structural opening, fill the gap with suitable sealant and/or foam backers. Must be weather-proof, flexible, UV stable. Interior and exterior sealing where applicable. -
Trim and internal finishing
Apply internal trim or architraves as needed. Plaster or plasterboard, painting or finishing where required. Ensure the finished look is clean with no gaps or unsightly sealant lines. -
Cleaning and protection
Clean frames, glass, hardware from construction debris. Protect finishes (anodised or powder-coated aluminium can scratch). Remove protective film as per manufacturer recommendation. -
Testing & adjustments
Open, close, slide, lock, check sealing (wind, water) if possible. Make final adjustments to hinges, rollers, panels etc.
Local Considerations for Roodepoort & Randburg
Since Accend Aluminium & Glass operates in areas like Roodepoort and Randburg, there are some local factors to consider:
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Weather: Johannesburg area can have heavy rains, strong midday sun — so UV stability of finishes, good sealing, good glazing (to reduce heat gain) are important.
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Wind-loads: In higher elevation or exposed sites, winds can be strong; frames must be anchored properly, profiles capable for wind pressure.
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Thermal expansion: Aluminium expands and contracts; spacing, correct sealing, allow for movement without causing leaks or distortion.
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Building style: Many homes in Gauteng use face brick, plastered walls, concrete, etc. The substrate and opening materials affect fixings and sealing.
Why Proper Installation Matters
If aluminium windows or doors are poorly installed, many issues can crop up: leaks, drafts, noise penetration, operational problems, premature wear of hardware, even structural damage (if water ingress leads to rot or corrosion elsewhere). Good installation ensures the product meets its expected life span. Indeed, Accend has a page on How Long Do Aluminium Windows and Doors Last? — they note that properly manufactured and installed aluminium doors and windows can give 40-50 years+ of service. 2AG
Summary
In summary, installing aluminium windows and doors involves a comprehensive workflow, from planning and site prep to frame installation, glazing, sealing, finishing, and quality checks. At Accend Aluminium & Glass, customers can expect:
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Detailed measurement and planning including style, glazing, profile selection.
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Professional removal or retrofit work, ensuring opening is sound and prepared.
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Accurate frame installation with correct positioning, anchoring, drainage.
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Glazing and sash/door fitting with proper hardware and sealing.
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Clean finishing and thorough testing for function and weatherproofing.
Proper installation not only ensures that your windows and doors look great, but that they perform — resisting weather, reducing maintenance and keeping your home or commercial building secure and energy efficient.
Further Reading & References
Here are some useful resources to learn more or compare global standards:
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Global Windows & Doors — installation instructions, performance specs etc. globalwindows.ca
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Eternia Windows — “A Guide to Installing Aluminum Doors and Windows” for detailed global-best practices. Eternia