Professional Window Repair in Dublin & Wicklow

Window repair covers the restoration of existing windows that are no longer functioning, sealing, or insulating properly. This can involve repairing or replacing failed glass units, fixing draughts, restoring hinges and handles, resealing frames, and correcting alignment issues — without replacing the entire window.

At P Fahy Glazing Ltd, window repair focuses on improving thermal performance, security, and usability while keeping existing frames intact wherever possible.

Yes. In most cases, draughts are caused by worn seals, failed hinges, poor alignment, or failed glazing units, not the window frame itself.

Professional window repair can:

• Replace perished seals

• Realign sashes or opening sections

• Adjust or replace hinges

• Restore airtightness around the glass

This often eliminates draughts completely at a fraction of the cost of new windows.

Almost always, yes.

Window repair typically costs significantly less than full window replacement because:

• Existing frames are retained

• No structural work is required

• Installation time is shorter

• Disruption is minimal

In many homes built in the last 15–25 years, the frames are still in good condition — it is the glass and hardware that have failed.

Yes. Windows that are stiff, difficult to open, or won’t close properly usually suffer from hinge failure, misalignment, or worn hardware.

Window repair commonly includes:

• Replacing worn or seized hinges

• Correcting sash alignment

• Adjusting locking mechanisms

• Replacing broken handles

Once repaired, windows should open and close smoothly and seal correctly again.

If one pane breaks, the entire double-glazed unit must be replaced, but the window itself does not.

This is a standard window repair:

• The broken sealed unit is removed

• A new unit is measured and installed

• The frame remains unchanged

This restores safety, insulation, and appearance without replacing the window.

Condensation or mist inside the glass means the seal on the double-glazed unit has failed, allowing moisture into the cavity.

This cannot be cleaned or repaired internally. However, window repair involves replacing only the failed glass unit, restoring insulation and clarity without replacing the frame.

Yes — replacing fogged or misted glass is one of the most effective window repairs you can make.

Once a unit has misted:

• It no longer insulates properly

• Heat loss increases

• The window looks permanently cloudy

Replacing the glass unit restores thermal performance, comfort, and appearance without the cost of new windows.

Yes. Window repair often results in immediate energy efficiency improvements.

Replacing failed glass units with modern A-rated glazing, restoring seals, and correcting alignment significantly reduces heat loss and draughts. While a BER score may not always change dramatically, the real-world comfort and heating savings are noticeable.

No. Draughts rarely mean new windows are required.

In most cases, professional window repair — including seal replacement, hinge repair, and glass replacement — resolves the issue fully. New windows should only be considered if frames are rotten, warped, or structurally unsound.

We replace all common window glass types as part of professional window repair, ensuring the correct specification is used for safety, performance, and appearance. This includes:

• Double-glazed sealed units, including misted or failed units

• Triple-glazed units, where frame depth and specification allow

• Safety glass, compliant with current building regulations

• Toughened glass, used in doors, low-level glazing, and high-risk areas

• Laminated glass, providing enhanced security and noise reduction

• Energy-efficient low-E glass, designed to reduce heat loss

• Decorative and obscure glass, including frosted, patterned, and privacy glazing

• Coloured and tinted glass, matched to existing windows where required

• Mirror glass, used in specialist or architectural window applications

All glass is measured, specified, and installed to suit the existing window type, frame depth, and safety requirements, ensuring a secure fit and long-term performance as part of the window repair process. The renowned brand Pilkington is our main glass-type of choice.

No — cracked or chipped window glass must be replaced, not repaired.

As part of window repair, the damaged glass is removed and replaced with a new unit that meets current safety and performance standards. Using cracked glass is unsafe and can lead to sudden failure.

Yes. Window repair often improves security by:

• Replacing broken or weak glass with laminated or toughened safety glass

• Repairing faulty locks and handles

• Restoring proper closing and sealing

A properly repaired window is far more resistant to forced entry than a neglected one.

Yes. Replacing worn hinges and handles is a core part of window repair.

Failed hinges can cause sagging, draughts, and locking issues. New hinges restore alignment and sealing. Broken or outdated handles can also be upgraded for improved security and usability.

Yes. We provide emergency window repair and temporary securing where glass has broken unexpectedly.

This may include:

• Boarding up

• Temporary glazing

• Rapid glass replacement

We prioritise safety and weather protection until permanent repairs are completed.

We provide professional window repair across:

• Dublin

• Wicklow

• South Dublin

• North Wicklow

With a local workshop and mobile service, we handle both residential and commercial window repairs efficiently.

Most window repairs are completed within a single visit once glass is available.

• Hardware repairs are often completed immediately

• Glass replacement typically takes a few days from measurement to installation

• Emergency securing is carried out the same day

We always advise timelines clearly before work begins.

Window repair may not be suitable if:

• Timber frames are rotten beyond repair

• Frames are badly warped

• Old aluminium frames have severe corrosion

• Windows were installed incorrectly and cannot be realigned

In these cases, we’ll give honest advice rather than recommend unnecessary work.

Window repair is:

• More cost-effective

• Less disruptive

• Faster to complete

• Better for existing homes with sound frames

For most properties, window repair delivers much of the benefit of new windows at a fraction of the cost.