Leaking Window Repairs
No Call Out Fee
Fast Response
Fully Insured
24/7 Emergency Cover
Water coming through or around a window can cause more than an irritating drip. Persistent leaks can lead to damp patches, staining and damage to plaster and surrounding materials if the underlying problem isn’t addressed.
Window Doctor provides professional leaking window repairs through our nationwide network of local branches, helping homeowners and businesses identify and repair water ingress affecting uPVC, aluminium and timber windows.
Leaks can originate from damaged seals, gaps around the frame, failed external sealant, poor installation, drainage problems, damaged glazing or windows that no longer close correctly.
Available 24/7 for any emergency, call us today on 0800 043 0095 for a free quote and have your windows repaired by the best! Our experienced engineers can assess the window and surrounding components, identify likely causes and recommend suitable repairs.
From £5.17/m
Common Leaking Window Issues We Can Repair:
A window relies on several components working together to keep rainwater outside while allowing any designed drainage and ventilation to function correctly.
Common causes of leaking windows include:
- Failed external sealant – deteriorated or missing perimeter sealant can allow rainwater between the window frame and surrounding wall.
- Damaged rubber seals and gaskets – worn, split, loose or distorted seals can compromise weather resistance.
- Poorly closing windows – opening sections that don’t close firmly against their seals may allow wind-driven rain to enter.
- Dropped or misaligned windows – movement can create uneven gaps between the opening sash and frame.
- Faulty window hinges – worn hinges can prevent the sash from sitting correctly when closed.
- Locking mechanism problems – poorly adjusted or damaged locking points may prevent the window from closing tightly.
- Blocked or faulty drainage – drainage routes within suitable window systems can become obstructed or fail to manage water correctly.
- Poor installation – gaps or defects around an incorrectly installed frame can provide a route for water ingress.
- Damaged glazing – cracked or incorrectly fitted glass and glazing components can compromise weather resistance.
- Deteriorated glazing seals – damaged seals around the glass can contribute to water ingress.
- Damage to the window frame – cracks, holes, distortion or other damage can create routes for rainwater.
- Problems with the surrounding wall or opening – in some cases, water appearing around a window may originate from the surrounding building rather than the window itself.
- General wear and deterioration – ageing components can gradually become less effective at keeping out wind-driven rain.
Our Leaking Window Repair Services:
Window Doctor provides leak investigation and suitable weatherproofing repairs for residential and commercial windows.
Our services include:
Leaking window repairs Window leak investigation Window resealing Replacement rubber seals and gaskets Window realignment Window hinge repairs and replacements Window lock and locking mechanism repairs Window frame repairs & reconstruction Single, double and triple-glazed unit replacements Residential and commercial window leak repairs
If rainwater is coming through or around your windows, contact Window Doctor today. Through our nationwide network of local branches, an experienced engineer can investigate the likely source of the leak, recommend suitable repairs and provide a free, no-obligation quote to help make your windows weather-resistant again.
Frequently Asked Questions - FAQs
Why does my window leak when it rains?
Common causes include failed external sealant, damaged rubber seals, poor window alignment, worn hinges, drainage problems, damaged glazing or gaps around the installation. Wind-driven rain can also expose faults that aren't noticeable during lighter rainfall.
Can a leaking window be repaired without replacing it?
Yes, in many cases. If the main window remains in suitable condition, individual problems such as damaged seals, failed perimeter sealant, faulty hinges, poor alignment or drainage issues may be repairable without replacing the complete window.
Why does my window only leak during heavy rain?
Leaks that occur mainly during heavy or wind-driven rain can indicate a weakness in the window's weather sealing, drainage or surrounding installation. The direction and intensity of the rain may force water into an area that remains dry under normal conditions.
Is water on the inside of my window caused by a leak?
Not necessarily. Moisture on the room-facing surface of the glass may be condensation caused by indoor humidity and surface temperature. Moisture trapped between double-glazed panes usually indicates a failed sealed unit. Rainwater ingress is a separate problem and normally requires investigation of the window and surrounding installation.
Can you reseal a leaking window?
Yes, where failed or deteriorated sealing is responsible for the leak. However, Window Doctor will assess the likely cause first, because adding sealant won't resolve problems caused by damaged hinges, poor alignment, drainage faults, damaged glazing or water entering from elsewhere.
You're in safe hands with Window Doctor
- 1 Year Warranty on Labour
- 1 Year Warranty on Manufactured Parts
- No Fix, No Fee
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