Aluminium Window Replacement

Aluminium Window Replacement

Aluminium window replacement allows existing windows to be upgraded with new custom-made aluminium systems designed around the dimensions, architecture and performance requirements of the building.

Homeowners commonly replace windows because existing units are:

  • Difficult to open or close
  • Worn or damaged
  • Poorly sealed
  • Visually dated
  • Single glazed
  • Unsuitable for the renovation
  • Affected by deteriorated hardware
  • No longer providing the desired thermal or acoustic performance

A well-planned aluminium window replacement project can improve appearance, ventilation, glazing, functionality and comfort.

However, successful replacement requires more than simply ordering a new window the same approximate size as the old one.

Existing openings must be measured accurately, the surrounding construction understood and the appropriate replacement method established before manufacture.

EZ Windows supplies custom aluminium replacement windows for homes, renovations and suitable commercial projects.

What Is Aluminium Window Replacement?

Aluminium window replacement is the process of removing or upgrading an existing window and installing a new aluminium window that is manufactured to suit the building opening and project requirements.

Replacement can involve:

  • Removing an existing timber window
  • Replacing an old aluminium window
  • Replacing steel-framed windows
  • Upgrading single glazing
  • Changing the window configuration
  • Replacing damaged windows
  • Modernising the appearance of the building

The extent of work depends on how the existing window is installed and how the new window will integrate with the surrounding building.

When Should Aluminium Windows Be Replaced?

Windows may be considered for replacement when they have ongoing problems that cannot reasonably be addressed through maintenance or repair.

Common reasons include:

  • Corroded or damaged frames
  • Failed hardware
  • Difficult operation
  • Broken rollers
  • Poor seals
  • Cracked glass
  • Draughts
  • Water-entry concerns
  • Outdated appearance
  • Renovation requirements
  • Energy-efficiency upgrades
  • Acoustic upgrades

Age alone does not automatically mean a window must be replaced.

The actual condition of the window should be assessed.

Can Old Aluminium Windows Be Replaced?

Yes.

Existing aluminium windows can often be replaced with new aluminium systems.

The new window does not necessarily need to duplicate the old configuration.

For example, an old window may be replaced with:

  • A new sliding window
  • An awning window
  • Fixed glazing
  • A combination window
  • Double glazing
  • Thermally broken aluminium

The most appropriate solution depends on the opening and intended use.

Can Timber Windows Be Replaced With Aluminium?

Yes.

Timber windows can often be replaced with aluminium windows.

This is common in older homes undergoing renovation.

Before manufacture, the project should establish:

  • Existing opening dimensions
  • Existing reveals
  • External cladding or brickwork
  • Internal finishes
  • Flashing arrangements
  • Installation clearances

Changing materials can also alter the visible proportions of the window.

Can Steel Windows Be Replaced With Aluminium?

Yes, subject to the building construction and opening.

Older steel-framed windows are sometimes replaced with aluminium systems during renovations.

The replacement should account for differences in:

  • Frame depth
  • Sightlines
  • Fixing method
  • Opening size
  • Glass
  • Surrounding finishes

Some repair work to the surrounding opening may be required after removal.

Replacement Aluminium Windows for Renovations

Window replacement is often part of a larger renovation.

Renovation projects may involve:

  • New kitchens
  • New bathrooms
  • Extensions
  • External recladding
  • Façade upgrades
  • Larger openings
  • New doors

Replacing the windows at the same time can help create a consistent architectural appearance.

Replacement Windows for Older Homes

Older homes frequently contain openings that do not correspond with modern standard sizes.

This makes custom manufacture particularly useful.

Replacement windows can be manufactured around approved dimensions rather than attempting to force a standard stock window into the opening.

Custom Replacement Aluminium Windows

Custom replacement windows can be designed around the existing building.

This can include custom:

  • Width
  • Height
  • Configuration
  • Mullion positions
  • Glass
  • Colour
  • Screens

The selected dimensions must still remain within the capabilities of the relevant window system.

Should Replacement Windows Be the Same Size?

Not necessarily.

There are two broad approaches.

Replace Within the Existing Opening

This is often the simplest option.

The new window is manufactured to suit the existing opening.

Alter the Opening

Some renovations involve:

  • Enlarging windows
  • Reducing openings
  • Joining separate openings
  • Converting windows into doors

This can require additional building and structural work.

Any structural changes should be addressed by the appropriate project professionals.

Can You Make a Window Opening Bigger?

Potentially, but enlarging an opening is not simply a window replacement task.

It can affect:

  • Structure
  • Lintels
  • Framing
  • Brickwork
  • Cladding
  • Waterproofing

Structural changes should be appropriately assessed before the new window is ordered.

Can a Window Be Replaced With a Door?

In some renovation projects, yes.

For example, a window may be replaced with a:

  • Sliding door
  • Stacker door
  • Hinged door
  • Bifold door

This generally involves alteration of the wall opening and should be planned as a building project rather than simply a window replacement.

Can a Sliding Window Be Replaced With an Awning Window?

Often, yes.

If the opening and selected system are suitable, the new window can use a different operating style.

This can be useful where the homeowner wants:

  • Different ventilation
  • Improved appearance
  • Different screen arrangements

The best configuration depends on the room.

Can an Awning Window Be Replaced With a Fixed Window?

Yes, provided ventilation is not required at that location.

Fixed windows can provide:

  • Clear views
  • Simple operation
  • Fewer moving components

However, changing an operable window to a fixed window can affect ventilation strategy.

Replacement Aluminium Sliding Windows

Sliding windows are commonly used for replacements because they are practical and familiar.

They can be useful where:

  • External clearance is limited
  • Paths are nearby
  • Decks are outside the opening
  • Screens are required

Panel configuration should be selected according to the intended use.

Replacement Aluminium Awning Windows

Awning windows can provide controlled outward-opening ventilation.

They are popular for:

  • Bedrooms
  • Living areas
  • Bathrooms
  • Kitchens

External clearance should be checked before selecting them.

Replacement Aluminium Fixed Windows

Fixed windows are useful where views and natural light are more important than ventilation.

They can also be combined with opening windows.

Replacement Sashless Windows

Sashless systems can be considered in suitable architectural renovation projects.

They provide a contemporary appearance with reduced visible sash framing.

The chosen system should suit the opening dimensions and project requirements.

Replacing Windows With Double Glazing

One of the most common reasons for replacing older windows is to upgrade from single glazing to double glazing.

Double glazing can contribute to improved thermal and acoustic performance.

However, replacing the glass alone is not always equivalent to replacing the complete window.

The frame, seals and installation also influence overall performance.

Can Existing Aluminium Frames Be Double Glazed?

Sometimes, but not every existing aluminium frame is designed to accept double-glazed units.

Important factors include:

  • Glazing pocket size
  • Frame system
  • Glass thickness
  • Glass weight
  • Glazing beads
  • Hardware

In many cases, replacing the complete window provides greater flexibility.

Replacement Windows and Energy Efficiency

A window replacement project can be an opportunity to review energy performance.

Options can include:

  • Double glazing
  • Low-E glass
  • Thermally broken aluminium
  • Improved seals
  • External shading

The best combination depends on:

  • Climate
  • Orientation
  • Window size
  • Building design
  • Existing construction

Replacement Thermally Broken Aluminium Windows

Thermally broken aluminium windows can be used in suitable replacement projects where improved frame thermal performance is desired.

These systems contain a lower-conductivity section separating internal and external aluminium portions of the frame.

They are commonly considered for premium renovations and energy-conscious projects.

Replacement Windows and Acoustic Performance

Replacing old windows can also help address external noise.

This can be particularly relevant to properties near:

  • Main roads
  • Railways
  • Airports
  • Commercial areas

Acoustic performance depends on:

  • Glass
  • Seals
  • Frame
  • Opening type
  • Installation
  • Surrounding wall construction

A new window alone cannot make a room completely soundproof.

Acoustic Glass for Replacement Windows

Acoustic glazing may include:

  • Laminated glass
  • Acoustic laminate
  • Different pane thicknesses
  • Double-glazed configurations

Where a project has a defined acoustic requirement, the glass should be selected accordingly.

Replacement Windows and Draughts

Older windows may develop air leakage through:

  • Worn seals
  • Poorly closing sashes
  • Gaps
  • Deteriorated hardware

New windows can improve sealing when correctly specified and installed.

However, the surrounding wall and building envelope may also contribute to draughts.

Replacement Windows and Condensation

Replacing old windows can change the thermal behaviour of a room.

Double glazing and thermally improved frames may reduce the likelihood of condensation on some internal glass surfaces, but no window system can guarantee that condensation will never occur.

Condensation is also influenced by:

  • Internal humidity
  • Ventilation
  • Outdoor temperature
  • Building insulation
  • Thermal bridges

Replacement Windows and Water Leaks

A reported leak near an existing window does not automatically mean the window itself is the only source.

Water can enter from:

  • Flashings
  • Cladding
  • Sealants
  • Roof or wall junctions
  • Surrounding membranes
  • Cracks
  • Window installation

The source should be understood before assuming that replacing the window alone will solve the issue.

Are New Aluminium Windows Waterproof?

External aluminium windows are designed to provide appropriate weather and water resistance for their intended application.

They should not be described as completely waterproof under every possible condition.

Performance depends on:

  • System
  • Wind pressure
  • Exposure
  • Drainage
  • Installation
  • Surrounding building envelope

Open windows can also admit wind-driven rain.

Replacement Window Frames and Flashings

Flashings help manage water around window openings.

The required flashing arrangement depends on the building construction.

Window replacement should be coordinated with the existing or new:

  • Wall system
  • Cladding
  • Membranes
  • Sealants
  • Flashings

These items are not automatically included in the window manufacturer’s scope.

Replacement Windows in Brick Homes

Brick construction can require careful measuring because the visible brick opening may not represent the full window opening.

Important factors include:

  • Existing frame
  • Reveals
  • Brick opening
  • Internal plaster
  • Sills
  • Flashings

Removing the existing window can also expose previously concealed conditions.

Replacement Windows in Weatherboard Homes

Weatherboard homes can offer greater flexibility in some renovation projects because cladding can sometimes be removed or modified around the opening.

However, waterproofing, flashings and internal finishes still need to be properly coordinated.

Replacement Windows in Rendered Homes

Rendered façades require additional care to avoid unnecessary damage around the opening.

Replacement methodology should consider:

  • Existing frame
  • Render edge
  • Waterproofing
  • Sealant
  • Repair work

Replacement Windows in Apartments

Apartment window replacement can be more complex because the windows may form part of the external appearance or common property.

Projects may also involve:

  • Body corporate requirements
  • Building management
  • Access restrictions
  • Wind pressure
  • Fall-prevention requirements
  • Acoustic requirements

Approvals should be established before manufacture.

Replacement Windows in Commercial Buildings

Commercial window replacement may involve:

  • Larger glazing
  • Access equipment
  • Staged installation
  • Safety requirements
  • Public access
  • Building operations

The installation methodology should suit the project environment.

Replacing Windows in Schools

Education projects can require replacement work to be programmed around building use.

Considerations may include:

  • Student access
  • Safety
  • Installation timing
  • Security
  • Glazing specification
  • Acoustic requirements

Replacement Window Colours

A replacement project provides an opportunity to update the external appearance of the property.

Powder-coated aluminium can coordinate with:

  • Roof colours
  • Cladding
  • Render
  • Brickwork
  • Garage doors
  • Window shrouds
  • Screens

Colour availability depends on the selected coating system.

Can New Windows Match Existing Aluminium Windows?

Often, a visually compatible colour can be selected.

However, exact matching of older powder-coated finishes can be difficult because existing frames may have:

  • Faded
  • Weathered
  • Changed over time

New and old finishes may therefore not appear identical.

Replacement Windows With Flyscreens

Flyscreens can usually be incorporated into suitable replacement window systems.

Common applications include:

  • Sliding windows
  • Awning windows

Standard flyscreens are designed for insect control and should not automatically be treated as security or fall-prevention systems.

Replacement Windows With Security Screens

Security screens can be included where a suitable screen system is available.

They should be specified independently from standard flyscreens because they serve a different purpose.

Replacing Windows With Larger Glass Areas

Renovations often aim to increase natural light and views.

This can involve larger:

  • Fixed windows
  • Sliding doors
  • Feature glazing

Large glass requires consideration of:

  • Glass thickness
  • Wind pressure
  • Weight
  • Transport
  • Installation

Replacement Windows and Aluminium Shrouds

Architectural window shrouds can be added as part of a façade renovation.

Shrouds can provide:

  • Depth
  • Shadow
  • Feature colour
  • Architectural framing

The shroud and replacement window should be coordinated before manufacture.

Awning-window opening clearance is particularly important.

How Are Replacement Windows Measured?

Replacement windows should be measured according to the actual opening and proposed installation method.

Measurements can include:

  • Width
  • Height
  • Diagonals
  • Reveal depth
  • Internal dimensions
  • External dimensions

Existing openings may not be perfectly square.

Multiple measurements can therefore be required.

Why Accurate Measurement Matters

Custom aluminium windows are manufactured specifically for the project.

Incorrect dimensions can result in:

  • Window too large
  • Excessive gaps
  • Installation difficulty
  • Unnecessary modification

Final measurements should be confirmed before production.

Can Homeowners Measure Replacement Windows?

Homeowners can take preliminary measurements for quotation purposes.

However, preliminary dimensions should not automatically be treated as final manufacturing dimensions.

The party responsible for final measurement should be clearly established before ordering.

Should Replacement Windows Be Measured Before or After Removal?

This depends on the installation method and existing construction.

In some cases, dimensions can be established accurately with the old window in place.

In others, concealed conditions may only become apparent during removal.

The installation strategy should be decided before manufacture.

Replacement Window Installation Methods

The appropriate installation method depends on:

  • Existing frame
  • Wall construction
  • Internal finishes
  • External finishes
  • New window system

There is no single replacement method suitable for every building.

Full-Frame Window Replacement

Full-frame replacement involves removing the existing window system and installing a new frame.

This can provide greater flexibility but can also involve more work to surrounding finishes.

Insert or Retrofit Replacement

Some projects may allow a new unit or frame arrangement to be installed within retained elements of the existing opening.

This can reduce disturbance but may:

  • Reduce visible glass area
  • Alter sightlines
  • Retain some existing components

The suitability depends on the building.

What Happens to Internal Reveals?

Internal reveals may:

  • Remain
  • Be replaced
  • Require modification
  • Require repainting

This depends on the existing construction and replacement method.

Internal making-good should be clearly included or excluded in the quotation.

What Happens to External Finishes?

External works can vary according to:

  • Brickwork
  • Render
  • Cladding
  • Weatherboards

Some replacement projects require additional building work after window installation.

This should not be assumed to form part of window supply unless specifically included.

Does Window Replacement Damage Walls?

Some disturbance is possible when existing windows are removed.

The extent depends on:

  • Age of the building
  • Installation method
  • Existing frame
  • Surrounding materials

A careful replacement strategy can reduce unnecessary damage, but concealed conditions cannot always be predicted.

How Long Does Aluminium Window Replacement Take?

Installation time depends on:

  • Number of windows
  • Window size
  • Existing construction
  • Access
  • Removal difficulty
  • Finishing work

A single accessible window and a complete-house replacement are very different projects.

Can You Replace One Window at a Time?

Yes.

Some homeowners replace windows progressively.

This can help spread project cost.

However, completing windows together may provide benefits in:

  • Colour consistency
  • Scheduling
  • Delivery
  • Installation efficiency

Should All Windows Be Replaced at Once?

Not necessarily.

The decision depends on:

  • Condition
  • Budget
  • Renovation programme
  • Performance goals

Some properties may have only a few windows that need immediate replacement.

How Much Does Aluminium Window Replacement Cost?

The cost depends on both the new window and the installation work.

Important factors include:

  • Window size
  • Window type
  • Glass
  • Frame system
  • Screens
  • Number of windows
  • Existing construction
  • Access
  • Removal
  • Disposal
  • Finishing

A site-specific quotation provides the most useful answer.

Is Replacement More Expensive Than New-Build Windows?

It can be.

The new window itself may be similar, but replacement projects can involve additional labour for:

  • Removal
  • Preparation
  • Installation
  • Disposal
  • Making good

Existing conditions can also add complexity.

Can I Get Replacement Window Prices Online?

Yes.

Preliminary quotations can often be prepared from:

  • Dimensions
  • Photos
  • Window type
  • Glass
  • Quantity
  • Project location

More detailed information may be required before final manufacturing approval.

What Information Should I Provide for a Replacement Quote?

Useful information includes:

  • Photos of existing windows
  • Approximate width
  • Approximate height
  • Window type
  • Number of windows
  • Glass preference
  • Colour
  • Project location
  • Installation requirement

Plans can also be useful where the replacement forms part of a renovation.

Should I Repair or Replace My Windows?

This depends on the problem.

Repair may be appropriate where the issue involves:

  • Rollers
  • Handles
  • Locks
  • Minor adjustment
  • Individual glass panels

Replacement may be more appropriate where:

  • Frames are badly deteriorated
  • The complete system is outdated
  • Performance needs to be upgraded
  • The renovation requires a different window

Can Old Aluminium Windows Be Repaired?

Often, yes.

Depending on the system and availability of parts, repairs may involve:

  • Rollers
  • Locks
  • Handles
  • Glass
  • Seals

The age and condition of the window should be considered.

Should I Replace Windows Before Renovating the Interior?

Ideally, replacement should be coordinated with the overall renovation programme.

Installing windows before final:

  • Plastering
  • Painting
  • Tiling
  • Joinery

can make finishing work easier where surrounding areas need modification.

Should Windows Be Replaced Before External Cladding?

Where external cladding is also being replaced, coordinating the new windows and cladding can be advantageous.

This allows flashing and façade interfaces to be considered together.

Replacement Window Safety Glass

New replacement windows may require different glass from the existing windows.

Safety-glazing requirements can depend on:

  • Window location
  • Glass size
  • Height
  • Proximity to doors
  • Building use

The correct glass should be established for the new installation.

Replacement Windows and Compliance

Replacing an existing window does not mean the old specification should automatically be duplicated.

The new window should be appropriate for the current project and application.

Requirements may involve:

  • Glass
  • Wind pressure
  • Energy performance
  • Fall prevention
  • Ventilation
  • Structural considerations

Applicable approvals should be established by the responsible project parties.

Does EZ Windows Provide Engineering?

EZ Windows can manufacture and supply according to approved project information and the agreed scope.

Unless separately arranged, EZ Windows is not automatically acting as the project’s:

  • Architect
  • Structural engineer
  • Façade engineer
  • Energy assessor
  • Acoustic consultant
  • Waterproofing consultant
  • Building surveyor
  • Certifier

Where professional design or certification is required, the appropriate consultant should be engaged.

Replacement Window Warranty

New replacement windows supplied by EZ Windows are generally covered by the applicable EZ Windows product warranty.

EZ Windows is an AGWA member and generally provides a six-year product guarantee, subject to written warranty terms, conditions and exclusions.

Where installation is undertaken by EZ Windows under an accepted scope, the installation warranty is generally one year, subject to applicable terms.

Powder-coat warranty depends on the actual coating system selected and applied, environmental exposure, cleaning, maintenance and supplier conditions.

Frequently Asked Questions About Aluminium Window Replacement

Can old windows be replaced with aluminium?

Yes. Timber, aluminium and some steel window systems can potentially be replaced with modern aluminium windows.

Can aluminium replacement windows be custom made?

Yes. Custom sizing is particularly useful for existing non-standard openings.

Can I replace a sliding window with an awning window?

Often yes, provided the opening and selected system are suitable.

Can I replace an awning window with a fixed window?

Yes, where ventilation is not required.

Can I replace a window with a sliding door?

Potentially, but altering the opening can require structural and building work.

Can old single-glazed windows be replaced with double glazing?

Yes. Complete new double-glazed aluminium windows are commonly used for this purpose.

Can I put double glazing into my existing aluminium frame?

Sometimes, but not every existing frame has sufficient glazing capacity.

Are replacement aluminium windows energy efficient?

They can be, depending on the frame, glass, seals and installation.

Can replacement windows reduce noise?

Yes, where suitable glazing, frames, seals and installation are selected.

Will replacing windows stop condensation?

Not necessarily. Condensation also depends on humidity, ventilation, insulation and external conditions.

Will replacement windows stop water leaks?

Only if the window was the source of the leak and the surrounding building envelope is also functioning correctly.

Can replacement aluminium windows match my existing colour?

A similar colour may be available, but exact matching with aged or faded powder coating cannot always be guaranteed.

Can replacement windows include flyscreens?

Yes, where suitable for the selected window system.

Can replacement windows include security screens?

Yes, where compatible security-screen products are selected.

Can I measure replacement windows myself?

You can provide preliminary dimensions, but final manufacturing dimensions should be accurately verified.

Do replacement windows need to be the same size as the originals?

No. They can be changed, although altering the opening may involve additional building work.

How long does window replacement take?

Installation time depends on the number, size, access and existing construction.

Is it cheaper to repair or replace aluminium windows?

Repair can be cheaper where the existing frame is sound and only hardware or glass needs attention. Full replacement may offer better value when the entire window is deteriorated or a major performance upgrade is required.

How much does aluminium window replacement cost?

Cost depends on the new window specification, number of units, removal, access and installation.

Can I get a replacement window quote from photos?

Photos and approximate dimensions can be useful for preliminary pricing, although additional information may be required.

Can EZ Windows replace all the windows in a house?

A complete replacement package can be quoted where the project scope and location are suitable.

Request an Aluminium Window Replacement Quote

If your existing windows are worn, outdated, difficult to operate or no longer suitable for your renovation, EZ Windows can help you price a new aluminium window replacement package.

For an initial quotation, provide:

  • Photos of the existing windows
  • Approximate dimensions
  • Number of windows
  • Preferred window types
  • Glass requirements
  • Colour
  • Screens
  • Project location
  • Whether installation is required

For larger renovations, architectural plans or a window schedule can also be provided.

From a single replacement window to a complete residential or commercial upgrade, the objective is to manufacture the new windows around the actual requirements of the project.

EZ Windows — Architectural precision, designed to perform.

Do It Easy.