Velux complaint?
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We help resolve your complaint! Our AI cyber hornets are trained to help you write an effective Velux complaint letter, and make sure your case gets taken seriously.
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Velux customer service
- Customer service number
- 800-888-3589
- Customer support
- www.velux.com
- Twitter / X
- @VELUX
- Social media
Contact details checked on 27 Sep 2026
Why use our complaint platform?
Written in minutes
We help you write an effective complaint in minutes. Our AI cyber hornets are trained on thousands of complaint letters that actually worked.
We will make some noise!
Your complaint gets the attention it deserves. Our cyber hornets could post it on social media, send it by printed letter or use other escalation tools at our disposal.
Your personal case coach
Our AI models open a case file and keep coaching after you file: what to reply, when to push, and how to escalate if nothing happens.
You are not alone
Join 73,608 consumers who refused to be ignored. Our community is there for advice while you chase your resolution.
About Velux
Velux is a manufacturer of roof windows, skylights, sun tunnels, blinds and the controls that go with them, sold mainly through builders merchants and installers. Complaints in this trade follow a pattern: leaks, draughts and condensation appearing after installation, disagreement over whether the product or the fitting caused it, warranty claims that need installation details and proof of purchase, long lead times on made to order sizes, and spare parts for older models that are hard to source.
Photograph the installation and note the model and manufacturing code from the data plate on the frame, since parts and accessories are matched to it. Keep the invoice from whoever supplied and fitted the window, because the installer is normally your route for workmanship and the manufacturer for the product itself. Report leaks quickly with photos and dates, and get inspection findings in writing before work is redone.
Leaks or draughts appearing after the window went in? Take it to us. We keep advising while the claim moves between the installer and the manufacturer, and say when to press harder.
Common customer service questions about Velux
How do I file a complaint about Velux?
Do you have a dispute or a bad customer experience with Velux? Report it through our website to maximize the chance of getting it resolved.
We help you write an effective complaint in minutes. Our AI models are trained on thousands of effective complaint letters. Then we push it through emails, social media, paper complaint letters and other tools at our disposal. And you are not alone: our helpful community is there for advice.
How do I reach Velux customer service?
The number held for Velux is 800-888-3589, which is the customer service line for the United States. Velux is a Danish group that sells through national companies, so readers in the UK, Ireland or the rest of Europe should use the contact page of the Velux site for their own country instead. Wherever you are, have the model and the manufacturing code from the data plate on the window frame, the proof of purchase, and the name of the merchant or installer who supplied and fitted it. Roof windows are sold through builders merchants and installers rather than direct, so the supplier is often the faster route for anything about the fitting.
Merchant, installer and manufacturer all pointing at each other? Report it through our complaint process and we push it out by email, social media and printed letters.
Why is my Velux roof window leaking, and who is responsible?
A leak around a Velux roof window is more often a flashing or fitting problem than a fault in the window itself, which is exactly why responsibility gets disputed: workmanship sits with the installer, the product sits with the manufacturer. Water running down the inside of the frame in cold weather is usually condensation and points at ventilation rather than a leak, which is a different argument again. Photograph the inside and the outside on the day it appears, note the weather and the dates, and get any inspection finding in writing before anyone redoes the work. If the installer inspects and blames the product, ask for that in writing too, because the manufacturer will want to see it.
Claim bouncing between the installer and the manufacturer? Open it with us: we open a case and keep advising you on what to send next and when to press harder.
How do I make a warranty claim on a Velux window?
A Velux warranty claim starts with the data plate: the model and the manufacturing code on the frame identify exactly what was fitted, and a claim goes nowhere without them. Alongside that, expect to need the proof of purchase, the date and details of the installation, and photographs of the fault. Cover differs by product and by country and is set out in the guarantee document supplied with the window, so read that rather than a figure someone quoted in a showroom. Send the claim through the merchant or installer if that is who you bought from, and keep a copy of everything with the date it was sent.
Warranty claim refused without a reason in writing? Put it in on our website and we help you write it in minutes, with the model, the dates and the photographs in the right order.
Can I still get spare parts for an older Velux window?
Spare parts for older Velux windows are matched to the model and manufacturing code on the data plate, so start there: the plate is normally visible when the window is opened, on the top of the sash or on the frame. Blinds, controls, handles and glazing units are ordered against that code, and availability falls the older the window is, which is why a merchant sometimes says replacement is the only option. Ask for that in writing, with the code quoted, before you accept it. Lead times on made to order sizes are long, so get the promised date in writing when you order and keep the order confirmation.
What do people complain about most at Velux?
Nothing has been reported about Velux here yet. Our research shows what typically goes wrong with roof windows and skylights: leaks, draughts and condensation appearing after installation, disagreement over whether the product or the fitting caused it, warranty claims that stall for want of installation details or proof of purchase, long lead times on made to order sizes, and spare parts for older models that are hard to source.
Sound familiar? Be the first to report it and open the record for other consumers.
What happens after I submit my complaint?
Your complaint gets its own public page on Complain.biz and we get to work: we bring it to the attention of Velux through emails, social media, paper complaint letters and other tools at our disposal.
And we stay with it after you file. Our trained AI opens a case file for you and keeps coaching: what to reply, when to push again, and how to escalate if nothing happens.
Can other consumers help me with my Velux complaint?
Yes. We have an active community of consumers, and complaints here are public: people who ran into the same problem with Velux can give you advice or back you up with their own story. A complaint with a community behind it is much harder to overlook.
Velux complaints
Helpful experiences shared by Velux customers. Search, discuss and connect with other people in our community.
Velux complaints per month
Dec 2025 - Nov 2026Complaints filed on Complain.biz about Velux in each of the last twelve months.
No complaints about Velux yet. Yours can be the first.
How Velux compares
Velux customer service compared to others in the Manufacturing category.
| Company | Complaints | Biggest problem |
|---|---|---|
| Renewal by Andersen | 10 complaints | Poor window installs and leaks 60% |
| Rheem | 4 complaints | |
| Silverline Windows | 3 complaints | |
| Briggs & Stratton | 1 complaint | |
| Velux (this page) | 0 complaints | No complaints yet |
| Tesa | 0 complaints | No complaints yet |