Bertrand windows: Are they a good fit for U.S. projects?

Bertrand is a window factory based in Poland that exports products for the U.S. market. If you’re looking for verified and practical information about Bertrand, you’re in the right place.

We’ve prepared key details for U.S. developers to help assess whether Bertrand could be a suitable business partner. The summary below covers facts about Bertrand windows and independent evaluations of the manufacturer.

Bertrand quick overview

Bertrand is Polish window producer, offering uPVC, aluminum, clad and wood options.

The company builds windows from high-quality European profiles and ships them to the U.S. market.

Products offered:

• Windows
• Entry doors
• Patio doors
• Garage doors
• Shutters
• Bug screens
• Facades

Materials: uPVC, aluminum, wood, clad

Brands offered: Aluprof, Cortizo, Decco, Gealan, Reynaers

Pricing transparency: Not available – must contact for details

Google rating: 3.5/5 (146 reviews)

Portfolio on website: Yes

Company size: PLN 120K paid-in capital, ~300 employees

Communication channels: Phone, contact form, email

Availability in U.S. time zones: Not specified

Reviewing Bertrand windows

Why and how we review window producers

At debesto, we have spent over 10 years working with window manufacturers, systematically reviewing their:

• production methods,
• business structures,
• and approach to problem-solving.

We’ve been customers of Polish window producers—just like you—and have placed numerous orders throughout Poland.

This experience gives us insight into what makes a window supplier truly reliable.

Bertrand advantages

Clear information about certificates

Some of Bertrand’s products are NFRC-certified, meaning they comply with U.S. building codes and ensure a smooth approval process during inspections.

Decent product selection

Bertrand offers a moderate range of products. Depending on the project, this may be sufficient, but there are still limitations that might not meet the needs of highly customized home builds.

A possibility for cheaper windows

If you have the time and experience, importing windows directly from a producer can potentially lower your costs—if you know the market—because you bypass the middleman. Just remember that the entire purchasing process falls on you.

Bertrand disadvantages

No price transparency

Bertrand does not provide publicly available pricing, so you must request a quote.

No window brand transparency

Bertand uses the same European extrusions as other manufacturers—but labels its windows with its own unique names sometimes. For instance, window labeled Kombisystem is assembled from Gealan S9000 extrusions. This can make it hard for you to research and compare products on an apples-to-apples basis.

To better understand these nuances, you can also learn more about European window manufacturers, system providers, and how the European window supply chain works to avoid costly mistakes.

Is Bertrand a good fit for developers?

Short answer is: It depends. On what? On your project and business situation.

With over 10 years of consulting and window sourcing experience for developers and design-build firms worldwide, we’ve identified the factors that truly matter for spec homes. Let’s explore them below.

5 factors to evaluate

If you’re a developer or design-build firm planning a luxury window project, you should review a few critical points before deciding to buy directly from a manufacturer.

Ask yourself: Can this manufacturer actually support the way you work? These five points will help you assess that before making a decision.

• 1. Limited to what they sell
  Manufacturers offer only what’s in their portfolio—and they won’t suggest better options if they don’t produce them. Even if a product doesn’t fully meet your needs, they might still try to push it.
• 2. Slow, formal communication
  Need a quick tweak or answer? Be prepared to wait. Most manufacturers communicate only via email, with limited flexibility and longer response times—especially across time zones.
• 3. Not built around your business model
  Manufacturers serve all kinds of clients—distributors, homeowners, resellers—but they don’t specialize in developers or design-build firms. They may not fully understand the unique requirements of the U.S. market.
• 4. Product-first, not project-first
  Producers focus solely on their products, often missing the fact that your goal isn’t just to buy windows—it’s to sell spec homes. They won’t engage your purchasing committee, consult with your architect, or help optimize your project. If your partner doesn’t understand your reality, you’re forced to adapt to their process instead of working the way you need to.
• 5. No pricing transparency
  You won’t find prices on their website. Every quote requires back-and-forth communication, leaving you in the dark about how competitive the pricing really is. We offer quick access to ballpark pricing and product comparisons so you can make informed decisions faster.

In some cases, a manufacturer can be the perfect choice. To learn more about this, read our comparison: Broker vs. Manufacturer.

What is an alternative to Bertrand windows?

By sourcing windows directly through debesto, you can still reduce costs by as much as 50% compared to typical U.S. market prices.

Browse pricing online

If you’re looking for a quick estimate, you can view debesto’s window and door pricing sheets. Our online calculators are also available to use free of charge.

Business-oriented solutions

While manufacturers focus on making products, our role is to match window solutions to your project and business needs—helping you grow while minimizing risks and delays.

Access to verified producers

Through partnerships with trusted Polish manufacturers, debesto gives you access to a broad selection of high-quality windows suited to the needs of luxury residential projects.

Comprehensive support

debesto provides technical guidance during project planning and coordinates logistics to help keep timelines under control.

We also offer warranty coverage and handle any claims or issues directly with the manufacturer on your behalf.

U.S. time zone availability

Although based in Poland, debesto is available for contact until 4 p.m. EST via phone, email, video call, or WhatsApp.

Bertrand vs. debesto comparison

Key takeaways

When Bertrand could be a suitable option

If a limited selection of products is enough for your project, you don’t need developer-focused knowledge, and you’re ready to manage the entire international buying process on your own.

When debesto is the better choice

If you’re looking for a window partner with experience in the U.S. luxury housing market—providing support throughout every phase of the project.

See how we can help you

• Import European windows to the USA directly from Poland
• Save up to 50% on premium-quality windows
• Add value to your custom project
• Stop wasting time – simplify the process

Explore solutions:

For Building Professionals

For Private Homeowners