Internorm International GmbH Reviews 

94
TrustScore 2.5 out of 5

2.3

While we don't verify specific claims because reviewers' opinions are their own, we may label reviews as "Verified" when we can confirm a business interaction took place. Read more

To protect platform integrity, every review on our platform—verified or not—is screened by our 24/7 automated software. This technology is designed to identify and remove content that breaches our guidelines, including reviews that are not based on a genuine experience. We recognise we may not catch everything, and you can flag anything you think we may have missed. Read more

Company details

  1. Window Treatment Store

Written by the company

Internorm is Europe's largest window brand and distributes its high quality products via 11 Internorm offices and 1300 distribution partners in 21 countries. The products are 100 % "made in Austria"​. Internorm expands this leading market position every year. Trust in the brand has been shown millions of times over by sales in Europe, which up to now have exceeded more than 28 million units. This is not only hugely motivating but also commits us to accept even more responsibility.


Contact info

2.3

Poor

TrustScore 2.5 out of 5

94 reviews

5-star
4-star
3-star
2-star
1-star

No recent history of asking for reviews

This company hasn't invited customers recently, so reviews may not be representative

Replied to 61% of negative reviews

Typically replies within 2 weeks

How this company uses Trustpilot

See how their reviews and ratings are sourced, scored, and moderated.

2.3

All reviews

(94)

19 reviews in the last 12 months

Write a review

We perform checks on reviews

Companies on Trustpilot aren't allowed to offer incentives or pay to hide reviews. Reviews are the opinions of individual users and not of Trustpilot. Read more

Rated 4 out of 5 stars

Good Windows

There was a small delay with the delivery, but the service was very good. Everyone was nice, competent and knew what they were doing. All of them worked well together and installed the windows quicker than expected.
They make really good windows. All are solid, keep the heat in and are nice looking.

December 9, 2025
Unprompted review
Advertisement
Rated 1 out of 5 stars

Fo not use Internorm. There are finosest.

I am finding internorm and there sales agent to be extremely dishonest and abusive.

I will need to take them to court as they are intentionally manufacturing windows the wrong size.

I have raised my concerns to Internorm UK both by phone and e mail there refuse to respond to ether e mail or phone calls.

January 27, 2025
Unprompted review
Rated 1 out of 5 stars

Internorm Finger Scanner

In 2023 I fitted Internorm door with a finger scanner. There was no support for the installation of the finger print scanner. The scanner barely works, is completely unreliable and the support and service response has been really shockingly poor. My feedback is never install finger print scanner from Internorm on your door, very unreliable and waste of money.

January 8, 2025
Unprompted review
Rated 2 out of 5 stars

Manufacturing fault

Ordered my windows in July, they arrived for installation 25th September, one of the windows had a manufacturing fault now have to wait until December for replacement!

September 25, 2023
Unprompted review
Rated 4 out of 5 stars

Good Window

Living with these windows for a year. Triple glazed, aluminimum on outside and wood on the inside. They make really good windows! Solid, keep the heat in, nice looking.

March 19, 2022
Unprompted review
Advertisement
Rated 1 out of 5 stars

I ordered windows from Internorm

I ordered windows from Internorm, thinking as a leading manufacturer I would get a good service.
The windows were supplied by their distributor, Internorm by Architectural Window Solutions Autumn 2018.
They were very poorly fitted. No cills or trims were supplied and door handles were not even fitted. On two, the open/close mechanism has broken completely after only a few months. On others, it is so loose that I don't dare open them.
I have tried to contact the company on several occasions to resolve this. 9 months on, the company has not even bothered to arrange a site survey to assess the problems. The windows are meant to come with comprehensive warrantees, which I am still trying to invoke to get the windows/doors into a usable state.
In short, customer service is non-existant and the fitting was abysmal.
Very disappointed with Internorm.

July 13, 2019
Unprompted review
Show reviews in all languages. (94 reviews)

The Trustpilot Experience

Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.

We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.

Learn about Trustpilot’s review process.

Here are 8 tips for writing great reviews.

Verification can help ensure real people are writing the reviews you read on Trustpilot.

Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.

Take a closer look