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Insider Secrets: How to spot high and low-quality windows and doors
26 Aug 2025
From materials and construction to finish and performance, understanding what to look for can help you make an informed decision; whether you’re renovating, or starting from scratch.
When investing in new windows and doors, the difference in quality isn’t always obvious, and the truth is you won’t know until it’s too late, which could be years down the line until you notice deterioration.
Why Quality Matters in Windows and Doors
Choosing the right windows and doors is an important decision that can significantly affect the energy efficiency, security, durability, and overall appearance of your home.
Hand-crafted joinery and durable materials ensure lasting performance, making quality an investment in comfort, style, and peace of mind.


The Telltale Signs of Quality Craftsmanship on Doors and Windows
High-quality craftsmanship ensures not only beautiful aesthetics, but also long-term performance, durability, and energy efficiency. In a climate where insulation and sustainability are more important than ever, engineered timber windows and doors can dramatically reduce heat loss, improve security, and elevate your home’s character.
Materials Make the Difference: What to Choose for your Doors and Windows
Investing in superior materials and skilled joinery means fewer repairs, less maintenance and peace of mind that your home is protected and stylish for years to come.
We craft our British-made products using Accoya® and redwood, because it combines stability and durability, which blend into a product that can stand the test of time. Accoya® is a high-performance, sustainable timber that has been acylated to enhance its resistance to the elements, and ensures stability and durability, meaning it doesn’t swell, twist or warp, and that the joints remain tight, with no way for water to ingress.
As with all natural products, timber has its imperfections, but there is beauty in imperfections – just think of Sophia Loren and her iconic beauty mark. By handcrafting our products, we ensure that each joint is stable and long-lasting. Whilst this may be a more timely and expensive process, it results in products that far outlast cheaper alternatives, which are made with speed and ease, meaning they are less durable.
Common Red Flags in Low-Quality Products
When choosing windows and doors, knowing what to avoid is just as important as knowing what to look for. Poor-quality products often reveal themselves over time through flimsy materials, weak or misaligned joints, and cheap hardware that feels loose or wears quickly, as they are made for speed and ease.
Drafts from poor seals, and condensation between glass panes are signs of inadequate insulation, whilst rough finishes, peeling paint and inconsistent colours suggest a lack of craftsmanship.
Functional issues like sticking when opening or rattling further indicate low standards in manufacturing.
It is also noted that a lack of certifications or warranties can also raise concerns about durability and performance.
But often, you won’t truly know a subpar product until years down the line.


Security Features You Should Never Compromise On
Security is a crucial consideration when selecting windows and doors. Key features to look for include multi-locking systems, strong and durable frames, laminated glass, and secure hardware that meets insurance company standards.
All of our Westbury windows and doors are security tested and are Part Q compliant, so you can be sure that your home is secure and protected.
What Sets Trusted Suppliers Apart
Trusted suppliers stand out through quality craftsmanship, reliable materials, and consistent performance. They offer expert advice, tailored solutions, and back their products with strong warranties and certifications.
Attention to detail, excellent customer service and a proven track record of long-lasting, well-fitted installations are key indicators of a supplier you can rely on.
If you’re planning a renovation, contact our sales and design teams to book a private tour of our factory and showrooms, or alternatively, request one of our brochures.