
Roof Window Leaking
Water at the roof window after rain? Damp walls or ceiling? We service Velux, Fakro and Roto – seals and adjustment from inside, no roof access needed.
FREE
Leak diagnostics
Same Day
We arrive the same day you call
Guarantee
5 years on all work
Skylight leaking – where is the water coming from?
Water around the skylight after rain, wet wall or ceiling – this is a serious problem that can damage the building structure. We service Velux, Fakro and Roto without going onto the roof.
A skylight leak can have several sources: a damaged or hardened perimeter seal, a damaged roof flashing, a cracked pane or frame, loose sash fixings or a blocked drainage channel. Each requires a different approach.
The technician diagnoses the leak points from inside, checks the seal, flashing and glass, clears drainage channels. In most cases repair is possible in one visit. After sealing, a leak test is performed to confirm the problem is resolved.

Where does the roof window leak come from?
The technician checks every possible source – from inside and outside
Worn perimeter seals
Roof window seals harden after 8–10 years of intensive service (large temperature swings between winter and summer). Water enters through a micro-gap along the sash in rain or wind-driven rain. Velux or Fakro seal replacement from the inside – no roof access needed.
Damaged flashing or sealing collar
The sealing collar (flashing) around the roof window connects the window to the roofing material. Cracks or detachment cause water to run directly into the frame. Repair requires external access.
Incorrect sash adjustment
The roof window sash must press against the frame with defined force. If detuned, water enters in strong wind or driving rain. Lock and hinge adjustment to set correct compression – no parts replacement needed.
How do we diagnose a roof window leak?
Step by step – from symptom to repair
Moisture trace assessment
The technician determines where the water comes from: sash side, frame, flashing, or condensation. Observation of moisture traces identifies the source without disassembly.
Internal seal and adjustment check
Check of perimeter seal condition and sash compression. Adjustment of lock and hinges. Most repairs can be done without roof access.
External assessment (if needed)
If seals and adjustment are fine, the technician assesses the flashing and collar externally. Establishes the scope and cost of roofing or sealing work.
Repair and guarantee
Seal replacement, lock adjustment, or external repair – depending on the cause. up to 5-year guarantee on service work.
Moisture trace assessment
The technician determines where the water comes from: sash side, frame, flashing, or condensation. Observation of moisture traces identifies the source without disassembly.
Internal seal and adjustment check
Check of perimeter seal condition and sash compression. Adjustment of lock and hinges. Most repairs can be done without roof access.
External assessment (if needed)
If seals and adjustment are fine, the technician assesses the flashing and collar externally. Establishes the scope and cost of roofing or sealing work.
Repair and guarantee
Seal replacement, lock adjustment, or external repair – depending on the cause. up to 5-year guarantee on service work.
Ready to Get Started?
Contact us today for a free consultation and accurate quote.
Window and Door Repair Services
Professional solutions for all your window and door needs
Why Choose Us?
The advantages of working with our team of professionals

FREE Diagnostics & Visit
No-cost initial assessment to identify the problem.

Work Guarantee
up to 5-year guarantee on completed work. Manufacturer or supplier warranty on replaced components – depends on the specific part used.

Fast Arrival
Our technicians arrive promptly to address your needs quickly.

On-Site Repairs
99% of repairs can be completed during the first visit.

All Profiles & Brands
We work with all types of window and door profiles and manufacturers.

Convenient Payment
Pay by card, cash, or we can issue an invoice.
What Our Clients Say
Real feedback from our satisfied customers
"Incredibly professional and fast service. The technician fixed our window in under an hour. Highly recommended!"
"Great communication and transparent pricing. The quality of work was excellent. Very happy with the result."
"The team was punctual, polite, and very knowledgeable. They explained the issue clearly and fixed it efficiently."
"Fantastic service from start to finish. I will definitely use them again for any future window or door repairs."
Meet Our Qualified Specialists
Our technicians — over 70 years of combined experience with windows and doors
Andrzej
Senior technician and team leader
Coordinates the team and ensures the highest quality of services
Bartosz
Technician-specialist
Ensures your windows and balcony doors operate smoothly
Arkadiusz
Technician-specialist
Ensures your windows and balcony doors operate smoothly
Piotr
Technician-specialist
Ensures your windows and balcony doors operate smoothly
Tomasz
Technician-specialist
Ensures your windows and balcony doors operate smoothly
Łukasz
Technician-specialist
Ensures your windows and balcony doors operate smoothly
Serhii
Technician-specialist
Ensures your windows and balcony doors operate smoothly
Questions about leaking roof windows
Answers to the most common questions
The most common causes are worn seals, damaged flashing, or incorrect sash adjustment. The technician will identify the source during free diagnostics.
Not always. Seal replacement and sash adjustment are done from the inside. Flashing repair requires external access – the technician will assess the scope during the visit.
Sash adjustment from 80 PLN. Seal replacement from 50 PLN. Flashing repair – quoted on-site after scope assessment. Diagnostics always free.
Brands we service
Premium Quality Accessories and Solutions
Enhance your windows and doors with high-quality components for superior functionality and comfort
High-quality ergonomic handles with multiple finishes for enhanced comfort and style
Secure handles with integrated locking mechanism for enhanced safety and peace of mind
Advanced security solutions with multi-point locking for maximum protection
Automatic ventilation solutions with energy-efficient air circulation and smart controls
Convenient magnetic door holders for easy operation and secure positioning
Custom-fit insect protection with magnetic door holders and hidden hardware
Hidden hinges for clean, modern design with smooth operation and durability
Completed Window Repair Projects
See the quality of our work through real transformations
Glass Unit Replacement
Replacement of selective double and triple glazing units to improve energy efficiency or remedy glass breakage
Hardware Renewal
Complete mechanism renewal with modern hardware
Window and Balcony Door Sealing
Sealing the gaps between the window sill and the window frame to reduce heat loss and air leakage
Mechanism Cleaning and Lubrication
Complete mechanism replacement with modern multi-point locking system
Gasket Replacement
Replacement of old seals with polyurethane foam that remains stable and does not react to temperature changes, whether in winter or summer.
Hinge Replacement and Adjustment
Replacement of worn hinges and adjustment of window and door hardware to ensure smooth operation and a tight seal.
Property Types We Serve
Specialized solutions for every type of property
Residential
Apartments, houses, and residential complexes
- Private homes
- Apartment buildings
- Residential complexes
Institutional
Schools, hospitals, government buildings, and public facilities
- Schools & universities
- Hospitals
- Government buildings
- Public facilities
- Kindergartens
Commercial
Office buildings, retail spaces, restaurants, and business centers
- Office buildings
- Retail stores
- Restaurants
- Shopping centers
Industrial
Warehouses, factories, manufacturing facilities, and storage units
- Manufacturing plants
- Warehouses
- Storage facilities
- Distribution centers