---
title: "Kellerfenster — €24K/yr Amazon DE Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/de/baumarkt/kellerfenster"
last_updated: "2026-08-11T01:18:40.447Z"
locale: en
meta:
description: "Niche score 42/100 · €24K/yr market · 39K searches/yr · €83.56 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 42/100 · €24K/yr market · 39K searches/yr · €83.56 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Kellerfenster — €24K/yr Amazon DE Niche (2026) - Flapen"
---
# **kellerfenster**
**Skip it**
A small market ($24K/yr) — this niche doesn't clear our bar today.
Market size 6Growth 18Conversion 9Competition 74Returns 100Price range 53Avg price 81Brand share 14Review moat 64Quality gap 47
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****€83.56**
avg listing price — sweet spot $15–$100
**Competition**
**Good****41%**
top-5 click share — leaders hold, buyers still browse
**Review moat**
**Good****948.49**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Good****€32.67–€159.12**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-14.2%**
90-day search growth — must beat 0% to launch
**Brand share**
**Bad****94%**
top-5 brand share — brand-locked demand
**Conversion**
**Bad****0.7%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****€24K**
€24K/yr · 39K searches
**Signals**[** High Price**](https://flapen.com/research/niches?market=de&signal=high_price "Avg price > $50")
According to Flapen's Amazon Germany niche tracking, kellerfenster is a €24K/yr Amazon Germany market (39K searches/yr). The top 5 brands hold 94% of demand. Verdict: Skip it — 42/100.
Data updated Jul 8, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **kellerfenster market data**
- **Units sold / yr**
- **500–750**
- avg 0–100/product
- **Revenue / yr**
- **€42K–€63K**
- units × avg price
- **Conversion rate**
- **0.7%**
- **Avg BSR**
- **#12**
- **Page quality**
- **0%**
- **Prime**
- **5%**
- **Sponsored**
- **54%**
- **Out of stock**
- **18.4%**
- **Avg brand age**
- **64 months**
- **Avg seller age**
- **202 days**
## **Competition & brand share**
The top 5 products take 41% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**10 **—flat
**Sellers**
**9**
**Top-5 brand share**
**94%**
Top 20: 100%
**Top-5 click share**
**41%**
Top 20: 83%
**Open market**
**4%**
- Framelux38% - JeCo30% - Framex18% - Generisch6% - Trobak3% - Panorama242% - Open — no brand owns it (4 brands, 4%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -14.2% search growth over the last 90 days.
1K750Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.7×
[**Open Trend **](https://flapen.com/research/de/baumarkt/kellerfenster/trend)
## **Top kellerfenster search terms**
- **kellerfenster 60x40**13K/yr-10.2%1.0% conv. - **kellerfenster 100x50**8K/yr-20.3%0.9% conv. - **fenster 40x40**5K/yr+28.1%1.1% conv. - **kellerfenster 80x50**5K/yr-29.3%1.1% conv. - **kellerfenster 100x60**5K/yr-32.0%0.6% conv. - **werkzeugbilligercom**2K/yr+10.4%0.0% conv. - **kellerfenster 80 x 40**2K/yr-19.8%0.3% conv. [**All search terms **](https://flapen.com/research/de/baumarkt/kellerfenster/search-terms)
## **Top kellerfenster products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%4%€9588%€2K12%€3K16%€4K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Kellerfenster - Kunststoff - Fenster - innen weiß/außen weiß - BxH: 50 x 40 cm - 500 x 400 mm - DIN Links - 2 fach Verglasung - 60 mm Profil**JeCo**€44.75**4.6★3,128 rev](https://www.amazon.de/dp/B013R1J6BW) [2**Kellerfenster Kunststofffenster weiß BxH: 60 x 40 cm / 600 x 400 mm 2-fach Verglasung (32 mm) Dreh-Kipp inkl. Pilzkopfverriegelung DIN Rechts (Griff Links) 60 mm Profil**Framelux**€67.95**4.5★565 rev](https://www.amazon.de/dp/B0BX6XKDYG) [3**Kellerfenster Kunststofffenster weiß BxH: 100 x 60 cm / 1000 x 600 mm 2-fach Verglasung (32 mm) Dreh-Kipp inkl. Pilzkopfverriegelung DIN Rechts (Griff Links) 70 mm Profil**Framelux**€108.62**4.5★565 rev](https://www.amazon.de/dp/B0BX6ZYH63) [4**Kellerfenster Kunststofffenster weiß BxH: 100 x 50 cm / 1000 x 500 mm 2-fach Verglasung (32 mm) Dreh-Kipp inkl. Pilzkopfverriegelung DIN Rechts (Griff Links) 60 mm Profil**Framelux**€105.29**4.5★565 rev](https://www.amazon.de/dp/B0BX6XL9TY) [5**Kunststofffenster Kellerfenster Fenster - 2 Fach Verglasung - weiß/weiß - BxH: 500x400 mm - DIN Links**Generisch**€44.65**4.3★48 rev](https://www.amazon.de/dp/B0DYK7RWZV)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Framex Kellerfenster PVC Fenster Weiß 60 x 40 cm (600 x 400 mm) 2-Fach Verglasung Kippfenster Kunststofffenster Für Keller Garage Nebenräume Wartungsfrei**Framex**€51.89**0 rev2mo ago](https://www.amazon.de/dp/B0GZZW6RZJ) [**Framex Kellerfenster Festverglasung Weiß 2-fach 40 x 40 cm Kunststofffenster PVC mit 32 mm Verglasung (4/24/4) festes Fenster für Garage und Gartenhaus BxH 400 x 400 mm**Framex**€32.67**27 rev10mo ago](https://www.amazon.de/dp/B0FMHBB34R) [**Framex Kellerfenster Kippfenster Weiß 2-fach 40 x 40 cm Kunststofffenster PVC mit 32 mm Verglasung (4/24/4) Fenster zum Kippen für Garage und Gartenhaus BxH 400 x 400 mm**Framex**€60.65**27 rev10mo ago](https://www.amazon.de/dp/B0FMGY663D) [**Framex Kellerfenster Kleines Fenster Weiß 40 x 40 cm (400 x 400 mm) 2-fach (32 mm) Dreh Kipp DIN Rechts PVC 58mm Profil 4-Kammer-System inkl. Griff Premium**Framex**€80.38**186 rev1y ago](https://www.amazon.de/dp/B0FFMYGRRM) [**Kunststofffenster Kellerfenster Fenster - 2 Fach Verglasung - weiß/weiß - BxH: 500x400 mm - DIN Links**Generisch**€44.65**48 rev1y ago](https://www.amazon.de/dp/B0DYK7RWZV)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Framex Kellerfenster PVC Fenster Weiß 60 x 40 cm (600 x 400 mm) 2-Fach Verglasung Kippfenster Kunststofffenster Für Keller Garage Nebenräume Wartungsfrei**Framex**€51.89**0.0★**▲ 244%**](https://www.amazon.de/dp/B0GZZW6RZJ) [**Framex Kellerfenster Kleines Fenster Weiß 40 x 40 cm (400 x 400 mm) 2-fach (32 mm) Dreh Kipp DIN Links PVC Profil 58mm 4-Kammer-System inkl. Griff Premium**Framex**€83.43**4.5★**▲ 233%**](https://www.amazon.de/dp/B0DSTJCLZR) [**Kellerfenster Kunststofffenster anthrazit BxH: 100 x 50 cm / 1000 x 500 mm Verglasung (32 mm) Dreh-Kipp inkl. Pilzkopfverriegelung DIN Rechts (Griff Links) 60 mm Profil**Framelux**€105.44**4.5★**▲ 151%**](https://www.amazon.de/dp/B0BX6XQXQC) [**SHZYJBRY Schiebefenster Ersatzfenster 60x40cm Fenster Window Kellerfenster Mit Gehärtetem Glas Badezimmer Weißes Schiebefenster**SHZYJBRY**€50.19**3.6★**▲ 125%**](https://www.amazon.de/dp/B0DNM6DTNJ) [**Framex Premium Kellerfenster - Kunststofffenster Weiß BxH 1000 x 500 mm - Garagenfenster/Gartenhaus Fenster BxH 100 x 50 cm 2-fach Verglast - Din Rechts-Funktion Dreh Kipp Fenster-Alle Größen**Framex**€100.51**4.6★**▲ 119%**](https://www.amazon.de/dp/B082L21HVW)
**~~View all trending →~~**
## **What buyers say about kellerfenster**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Qualität insgesamt**36%
*“Verarbeitungsqualität: ⭐️⭐️⭐️⭐️”*
**Montage/Installation**25%
*“Einbau unkompliziert”*
**Preis-Leistungs-Verhältnis**20%
*“Guter Preis”*
**beworben Vs Tatsächliches Produkt**7%
*“Artikel wie beschrieben”*
**Einstellbarkeit/Drehbarkeit/lehnend**2%
*“man braucht fast keine einstellung vornehmen.”*
**Gesamtgröße**2%
*“passt das.”*
**Verriegelungsmechanismus**2%
*“Der Mechanismus ist leichtgängig”*
**Benutzerfreundlichkeit**2%
*“Ein einfaches,”*
**Materialqualität**2%
*“Materialbeschaffenheit: ⭐️⭐️⭐️⭐️”*
### **What buyers complain about **
**Gesamtgröße**67%
*“Super kleines Fenster”*
**Stärke**17%
*“Nicht sehr stabil”*
**Gleichgewicht/Stabilität**17%
*“Nicht sehr stabil”*
### **Top return reasons **
**Gesamtgröße**58%
**Defekt Material/Teile**10%
**beworben Vs Tatsächliches Produkt**10%
**Messung / Ablesegenauigkeit**6%
**Montage/Installation**3%
**Kompatibilität – insgesamt**3%
**Höhe**3%
**Materialqualität**3%
**Funktionalität insgesamt**3%
## **Common questions**
- **Is kellerfenster profitable to sell on Amazon Germany?**
- The niche generates €24K/yr across 37 tracked products. 0 of 4 products launched in the last 360 days are still selling. 90-day search growth is -14.2%. Flapen's verdict: Skip it (42/100).
- **How competitive is the kellerfenster niche?**
- 10 brands and 9 sellers compete. The top 5 products take 41% of clicks and top 5 brands hold 94% of demand.
- **What do buyers complain about in kellerfenster?**
- Top complaints mined from reviews: Gesamtgröße, Stärke, Gleichgewicht/Stabilität. The return rate is 0.0%.
- **When does demand for kellerfenster peak?**
- Demand is steady year-round — the busiest month runs 1.7× the quietest.
- **What does it cost to enter the kellerfenster niche?**
- Listings span €32.67–€159.12; the average listing price is €83.56 (sweet spot $15–$100). The average incumbent carries 948 reviews — the moat a new listing must climb.
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