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Technician diagnosing leak at Velux or Fakro roof window

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.

Starting from50 PLN

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.

Technician diagnosing leak at Velux or Fakro roof window

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.

Replacement: 30–60 min

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.

External repair: quoted on-site

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.

Adjustment: 20–40 min

How do we diagnose a roof window leak?

Step by step – from symptom to repair

1

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.

10 min
2

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.

15–20 min
3

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.

As needed
4

Repair and guarantee

Seal replacement, lock adjustment, or external repair – depending on the cause. up to 5-year guarantee on service work.

30–90 min

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

Complete repair of fittings, hinges, handles, seals and glass units. PVC, aluminium and wooden windows.

From 50 zł

Precise 3D hinge and fitting adjustment. Restores tight seal and smooth operation without replacing parts.

From 50 zł

Straightening bent or deformed window and door frames. We restore correct closure without replacing the whole window.

From 170 zł

Hinge replacement, fitting repair, multipoint lock service and seal replacement for balcony doors.

From 50 zł

Perimeter and central window seal replacement. Eliminates draughts and heat loss.

From 20 zł

Full window inspection, adjustment and lubrication. Prevent costly repairs with preventive maintenance.

From 50 zł

Condensation between panes or broken glass? We replace sealed units without replacing the whole window.

From 225 zł

Roller replacement, track repair and HST drive service. Specialist in Schüco, Aluprof and Aliplast systems.

From 50 zł

Window or door stuck shut? We arrive without delay – no frame damage.

From 225 zł

Why Choose Us?

The advantages of working with our team of professionals

FREE Diagnostics & Visit

FREE Diagnostics & Visit

No-cost initial assessment to identify the problem.

Work Guarantee

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

Fast Arrival

Our technicians arrive promptly to address your needs quickly.

On-Site Repairs

On-Site Repairs

99% of repairs can be completed during the first visit.

All Profiles & Brands

All Profiles & Brands

We work with all types of window and door profiles and manufacturers.

Convenient Payment

Convenient Payment

Pay by card, cash, or we can issue an invoice.

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Years of Experience
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Projects Completed
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Commercial Projects
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Qualified Specialists

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!"

Elżbieta Tarnowska

"Great communication and transparent pricing. The quality of work was excellent. Very happy with the result."

Piotr Kowalski

"The team was punctual, polite, and very knowledgeable. They explained the issue clearly and fixed it efficiently."

Marta Szymańska

"Fantastic service from start to finish. I will definitely use them again for any future window or door repairs."

Daniel Szymczak

Meet Our Qualified Specialists

Our technicians — over 70 years of combined experience with windows and doors

12 years of experience

Andrzej

Senior technician and team leader

Coordinates the team and ensures the highest quality of services

14 years of experience

Bartosz

Technician-specialist

Ensures your windows and balcony doors operate smoothly

12 years of experience

Arkadiusz

Technician-specialist

Ensures your windows and balcony doors operate smoothly

9 years of experience

Piotr

Technician-specialist

Ensures your windows and balcony doors operate smoothly

8 years of experience

Tomasz

Technician-specialist

Ensures your windows and balcony doors operate smoothly

8 years of experience

Łukasz

Technician-specialist

Ensures your windows and balcony doors operate smoothly

7 years of experience

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

From od 40 zł

Secure handles with integrated locking mechanism for enhanced safety and peace of mind

From od 85 zł

Advanced security solutions with multi-point locking for maximum protection

From od 140 zł

Automatic ventilation solutions with energy-efficient air circulation and smart controls

From od 130 zł

Convenient magnetic door holders for easy operation and secure positioning

From od 40 zł

Custom-fit insect protection with magnetic door holders and hidden hardware

From od 380 zł

Hidden hinges for clean, modern design with smooth operation and durability

From od 205 zł

Completed Window Repair Projects

See the quality of our work through real transformations

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Glass Unit Replacement

Replacement of selective double and triple glazing units to improve energy efficiency or remedy glass breakage

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Hardware Renewal

Complete mechanism renewal with modern hardware

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Window and Balcony Door Sealing

Sealing the gaps between the window sill and the window frame to reduce heat loss and air leakage

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Mechanism Cleaning and Lubrication

Complete mechanism replacement with modern multi-point locking system

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Gasket Replacement

Replacement of old seals with polyurethane foam that remains stable and does not react to temperature changes, whether in winter or summer.

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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