COST GUIDES
Velux window servicing cost: 2026 UK price guide
Updated 07/26
Servicing your Velux windows keeps them working smoothly year after year and can flag minor issues before they become costly repairs. But how much does it cost?
Learn about Velux window servicing costs vs replacement in this handy cost guide.
Fast Facts
Typical cost: From £20 - £40 for a DIY kit to around £100 for a professional service (for first window)
Biggest pricing factor: How easy your roof window is to reach; windows needing scaffolding cost more in labour
How much does Velux window servicing cost?
| Velux Window Servicing | Average price per window |
|---|---|
| Self servicing kits inc. Ventilation flap foam/ air filter replacement and grease for hindges/ locks | £20 - £40 |
| Self-stain repair kit for window frames | £15 - £50 |
| Professional Velux servicing (first roof window) | £100 |
| Professional Velux servicing (each additional window, plus VAT) | £20 |
| Last updated: July 2026 Our costs are ballpark averages - get a local tradesperson to quote now | |
Data verified by our professional estimators
Estimators are CIOB & RICS members
As you can see from the costs above, Velux window servicing costs can vary depending on whether you hire a professional or attempt to sort small fixes yourself.
Let's break down the costs.
Professional Velux window servicing cost
The average cost of a professional Velux annual maintenance contract is around £100 for the first window and approximately £20 per additional window.
However, seal replacement and repairs may be for an additional cost. More on that later.
Velux roof windows are usually guaranteed for 10 years, but with the right maintenance, they will last much longer. Give Velux windows a light clean and check-over throughout the year, with a fuller professional service once a year.
DIY self-servicing cost
For smaller DIY jobs like replacing an air filter, repairing a scratch or lubricating hinges, you can pick up different DIY maintenance kits online for around £20 - £40.
Kits include:
Air filter replacements
Hinge lubrication
Scratch repair
Self-stain repair at around £15 - £50
Just make sure to follow the maintenance guidelines for the kits carefully. A dodgy repair could invalidate your window's warranty.
Prefer to leave it to a Velux specialist? We can help.
Find a Velux window servicing engineer near you
To price up for the job, download our free mobile app and connect with Velux specialists we've checked and approved.
Velux windows servicing cost calculator
Want to learn more about the costs involved before contacting a tradesperson?
Try our free interactive cost calculator below for an instant estimate based on the number of Velux windows you need servicing.
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What affects the cost of Velux window servicing?
A few things move the price up or down:
Whether additional repair or replacement work is needed following a service
How easy your roof window is to reach (windows that need scaffolding. or a cherry picker to access will cost more)
Below we look at these additional costs in closer detail.
Velux window repair cost
If a Velux window breaks or leaks, you'll need a repair or replacement rather than a standard service or DIY kit.
The average Velux window repair cost usually falls between £165 - £1,050, depending on the extent of the damage. Repairs include:
Window seal replacement: Around £65 - £150
Mechanism replacement: Around £100 - £500
Repair flashing or frame: Around £180 - £500
How much does Velux window repair cost?
If something has gone wrong with your Velux window, you'll need to get it repaired quickly. But how much does Velux window repair cost? Find out in our handy cost guide.
Velux window replacement cost
In some cases, the damage may be great enough that it will be more cost-effective to get a new skylight installed altogether. The cost to remove and replace a Velux is estimated at £1,000 - £2,500.
If you’re unsure whether a crack means you need replacement, read our guide on what to do with a cracked Velux window.
Or speak to a Velux window specialist directly for their expert opinion.
Find a trusted tradesperson in your area
What does a Velux window service include?
A professional Velux window service helps keep your roof windows operating smoothly, improves their lifespan and can identify minor issues before they become costly repairs.
A standard service typically includes:
Inspecting the window frame, sash and glazing for wear or damage
Checking hinges, handles and locking mechanisms
Lubricating moving parts to ensure smooth operation
Cleaning drainage channels and ventilation flaps
Checking seals and flashing for signs of deterioration or leaks
Adjusting the window if needed to improve opening, closing or weatherproofing
A standard service doesn't usually include:
Replacing worn seals or gaskets (often charged separately)
Glass repairs or replacement
Major hardware repairs, such as replacing hinges or opening mechanisms
Flashing repairs or replacing damaged roof tiles
An experienced Velux servicing engineer will let you know if any additional repairs are needed and provide a separate quote before carrying out the work.
On Checkatrade, you'll only find trades who meet our high standards and pass up to 12 checks.
Can I carry out Velux window maintenance myself?
There are plenty of maintenance jobs you can do yourself to help keep Velux windows looking good and working well for longer.
These include:
Regular inspections: Catch any issues before they become major problems. Look for signs of water damage, cracks, or broken seals
Cleaning: Mild soap and water is all that's needed. Avoid using abrasive or harsh cleaners, as they can damage the glass and frames
Clear the flashing: Remove leaves and other debris from the flashing yearly to allow rainwater to flow freely
Ventilation: Prevent condensation from forming by keeping windows slightly open when showering or cooking
Repainting: Wooden frames need to be repainted every 5-7 years to protect the Velux window from moisture and UV rays. Use a Velux-approved paint kit for a good finish
Most DIY servicing jobs, like replacing an air filter or oiling hinges, take less than 30 minutes.
That said, for bigger jobs like replacing mechanisms and resetting electric roof windows, we recommend hiring a professional.
Find a Velux window engineer covering your area
Use our quick and easy request a quote feature, and we'll get experienced local engineers to contact you directly. To get accurate quotes, be as detailed as you can:
Your Velux window make, model and size
Roof access details (flat roof, steep pitch, scaffolding needed?)
Photos of the damage or issue (if you're aware of anything)
Browse checked Velux servicing engineers covering your local area
Enter your postcode to find a top tradesperson near you
Glazing London
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9.67
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Velux window servicing cost checklist
Before contacting a tradesperson, here's what to check:
Velux window servicing cost checklist
Velux window servicing cost FAQs
Yes, regular servicing is a great idea to ensure your roof windows are working as they should. It will also avoid you having to pay for expensive replacement windows.
Velux roof windows are usually guaranteed for 10 years, but with the right maintenance, they will last much longer. If you have solar and electric roof windows, Velux offers a 5-year guarantee on all the electrical components. Meanwhile, Velux blinds and shutters are covered for three years.
If you choose Velux's dirt-repellent coating option, your windows stay cleaner for longer without extra effort. The self-cleaning coating, patented by Velux, reacts to sunlight to break down the dirt, which is then washed away by the rain. This is handy for hard-to-reach skylights.
Give Velux windows a light clean and check-over throughout the year, with a fuller service once a year. For electrical roof windows, Velux recommends that the gas springs and motors are replaced within 10 years after installation of the window to prevent malfunction and declining performance.
Fixing a Velux window usually costs between £165 and £1,050, depending on the damage. Small jobs like a scratch repair or new seal sit at the low end; a cracked pane or full reglaze pushes towards the higher figure.
Yes, most Velux window problems (from broken seals to cracked glass) can be repaired rather than replaced. A full replacement is usually only needed when the frame itself is damaged or the window has reached the end of its guarantee.
Yes, roofers commonly fit and replace Velux windows, especially when scaffolding or roof access is needed. Some window fitting specialists handle Velux replacements too. Either way, check they're experienced with roof windows specifically.
Yes, a new seal costs a lot less than the draughts, condensation and heat loss it prevents. Costing around £65 to £150, resealing is usually the cheapest fix before bigger problems set in.
At Checkatrade, you can find checked and reviewed skylight repair specialists and Velux window repair specialists. All committed to quality work.
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