
Overview
Bertrand is a certified manufacturer of PVC, wooden and aluminium windows. It also produces doors, exterior roller shutters and garage doors.
- Monday–Friday
- 8:00–16:00
Financials
Revenue history (in k)
Filing timeliness
4 of 6 financial statements were filed late (the longest delay 330 days for 2024).
- 202503/06/2026
- 202410/06/2026
- 202312/03/2025
- 202219/03/2024
- 202125/04/2023
- 202014/10/2021
Data and insights are generated automatically from financial statements – they may contain errors and are neither a credit assessment nor business advice.
News

Spectacular Aluminum Glazing in Gdynia – A Home Open to the World

Aluminum Joinery in Large Glazings? Fashion or Permanent Trend?

Bertrand in Sobieszewo – Sol Marina and Klimatyczna

Windows for an Energy-Efficient Home – How to Choose and Is It Worth It?

Modern Doors: Accessories and Solutions That Make a Difference

A Home with Character – Consulting That Stays in Memory
Industry
Offer
- Windows
- Doors
- Terrace systems
- External roller shutters
- Facade blinds
- Garage doors
- Joinery installation
Website technology
- Online shop
- WooCommerce
- Website
- WordPress
- Elementor
- Contact and booking
- T Tidio
- Analytics and marketing
- Google Analytics
- Google Tag Manager
Authorized Representatives
Manner of representation
If the management board is a multi-member management board, each member of the management board independently is authorised to make declarations concerning the company's property rights and obligations up to the amount of PLN 3,000,000 (three million złoty). Two members of the management board acting jointly or a member of the management board acting with the commercial proxy are authorised to make declarations concerning the company's property rights and obligations above the amount of PLN 3,000,000 (three million złoty).
Ownership
| Owner | Shares | Share value | Stake |
|---|---|---|---|
Henryk Jan Bertrandage 58 | 40 | $540.25 | 33.3333% |
Jacek Piotr Bertrandage 54 | 40 | $540.25 | 33.3333% |
Krzysztof Jan Bertrandage 52 | 40 | $540.25 | 33.3333% |
Henryk Jan Bertrand, Jacek Piotr Bertrand and Krzysztof Jan Bertrand hold a combined 100% – the ownership structure indicates family control.
Beneficial owners
| Person | Rights |
|---|---|
Debt
No entries in the National Debtors Register (KRZ).
Public aid
No public aid cases recorded in the last 10 years.
Competitors
| Name | Revenue | Website | ||
|---|---|---|---|---|
| Słowińscysp. z o.o. + limited partnership | $13,635,394.86 | slowinscy.com | ||
| Fenbrosp. z o.o. | $4,308,076.22 | fenbro.com | ||
| Terrumsp. z o.o. | $2,574,268.97 | terrum.pl | ||
| FTR-Solutionssp. z o.o. | $951,031.75 | ftr-solutions.eu | ||
| Domaxsp. z o.o. | $564,539.73 | domaxokna.pl | ||
| Gmyrpolsp. z o.o. | $345,336.52 | gmyrpol.pl | ||
| Fenster-Polensp. z o.o. | $201,710.40 | fenster-polen.com | ||
| Dobreokna24sp. z o.o. | $181,718.19 | dobreokna24.pl | ||
| Ekostolsp. z o.o. | $36,515.02 | ekostol.com.pl | ||
| Brilasssp. z o.o. | $3,502.58 | brilass.com |
FAQ
Last updated: 2026-06-10