Martijn Kozijn is a leading supplier of high-quality kunststof (plastic) kozijnen (window frames) and deuren (doors) in the Netherlands. The company specializes in providing durable, stylish, and energy-efficient products tailored to meet the unique needs of both residential and commercial clients. With over 15 years of online experience, Martijn Kozijn is committed to offering exceptional customer service and quick delivery, often within just two working days.
The company's product range includes a variety of customizable window frames and doors, such as the newly introduced Schüco FocusIng profile. Martijn Kozijn caters to contractors and homeowners alike, providing options for those looking to enhance their properties with sustainable building materials. Customers can easily request free quotes and benefit from direct support via the company's AI chatbot, ensuring a seamless purchasing experience.
Martijn Kozijn has a positive customer experience.
Martijn Kozijn receives high praise from customers for its excellent service and speedy delivery, with many noting the personal approach and effective communication throughout the purchasing process. Reviewers frequently highlight the good quality of the products, especially in comparison to competitors, and express satisfaction with the overall value for money.
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However, some customers report issues with product quality, specifically mentioning damaged doors upon delivery and a lack of response from customer service when problems arise. Despite these concerns, the majority of feedback remains overwhelmingly positive, emphasizing the company's reliability and commitment to customer satisfaction. Overall, Martijn Kozijn is regarded as a strong choice for home and garden needs, with a notable emphasis on quality service and timely delivery.
Each source counts by its number of reviews. Only reviews written by people are scored.
Rating, volume, share of the score, six-month trend and fake-review risk for each source
Source
Rating
Reviews
Weight
6-mo
Fake risk
★
Trustpilot
Imported Trustpilot reviews
4.6
206
100%
● Low
4.6 / 5 overall
=
206 reviews across 1 scored source
How fake risk works ⓘ
Reputation trend
Monthly average rating from reviews written by people · latest review Jun 2025.
Last 3 months
4.9▲ 0.4
12-month avg
4.6
All-time
4.6
Category avg
4.3
Monthly averageCategory average
Monthly average rating and review count
Month
Average
Reviews
Jul 24
5.0
4
Aug 24
4.8
5
Sep 24
4.2
10
Oct 24
3.7
3
Nov 24
—
0
Dec 24
5.0
3
Jan 25
—
0
Feb 25
4.0
1
Mar 25
5.0
1
Apr 25
5.0
1
May 25
4.8
4
Jun 25
5.0
5
What people praise & complain about
Share of positive (4–5★) and negative (1–2★) reviews mentioning each topic · based on the 206 most recent reviews.
Top praiseof 187 positive reviews
Customer service25%
47 mentions
Website & app2%
3 mentions
“4 jaar geleden een kunstof kozijn gekocht, nu eigelijk er pas achter gekomen dat er tussen de hr ++ gedroogde waterdr...”
On “Customer service” · Jun 22, 2025
Top complaintsof 16 negative reviews
Customer service19%
3 mentions
“Lieve mensen koop geen deuren bij hun zijn goed alleen de monteur betaalt je veel geld ik moest er een dag vrij voor...”
On “Customer service” · Mar 30, 2024
How it compares
Same method for every company: overall rating, legitimacy checks, the average rating of reviews mentioning each area and the 6-month trend · Home Improvement.
Overall rating and review count for this company and similar companies
Waardeloze communicatie en totaal niet bereid om tot een oplossing te komen. Koop hier vooral niet, garantie tot aan de voordeur… Dat dit soort bedrijven bestaan…
Ook de kwaliteit is ver onder peil. 1 van de twee kozijnen is gewoon niet juist in elkaar gezet, als je dan eindelijk contact krijgt zeggen ze dat je het kozijn beter moet afstellen…
Anyone can write a CrowdTrust 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.
Ik had een deur besteld, die werd meteen de volgende dag geleverd. Toen bleek het slot in de deur nniet te werken, en is door de service afdeling een nieuw slot gestuurd. Keurig geregeld.
Super goede ervaringen met dit bedrijf.
Vriendelijk, behulpzaam.
Goede service, goede mooie kwaliteit kozijnen.
Zeer zeker een aanrader.
Heel blij met onze mooie kozijnen.
Een no-nonsens bedrijf met een eerlijk product voor een goede prijs en wat betreft levering doen ze wat ze zeggen. Tevens een goede en snelle bereikbaarheid via telefoon of mail.
Online gemakkelijk het kunststof draaikiep raampje (b50*h60) besteld en betaald. Daarna kon ik deze direct ophalen bij hun magazijn in Maastricht. Vriendelijk en behulpzaam personeel. Gunstig geprijsd.
Martijn Kozijn is a leading supplier of high-quality kunststof (plastic) kozijnen (window frames) and deuren (doors) in the Netherlands. The company specializes in providing durable, stylish, and energy-efficient products tailored to meet the unique needs of both residential and commercial clients. With over 15 years of online experience, Martijn Kozijn is committed to offering exceptional customer service and quick delivery, often within just two working days.
The company's product range includes a variety of customizable window frames and doors, such as the newly introduced Schüco FocusIng profile. Martijn Kozijn caters to contractors and homeowners alike, providing options for those looking to enhance their properties with sustainable building materials. Customers can easily request free quotes and benefit from direct support via the company's AI chatbot, ensuring a seamless purchasing experience.