Secondary Glazing
Enhance Comfort without Replacing your Windows
Energy-efficient secondary glazing by Perma Seal Windows and Doors is a practical and cost-effective way to improve thermal performance, reduce noise, and enhance comfort—without replacing existing windows.
It has the ability to provide an excellent upgrade for existing windows in a non-intrusive manner, without the need to remove or change the original windows. Perma Seal Windows and Doors custom make secondary glazing systems to fit precisely into existing window frames with the intention of improving the comfort level, energy efficiency and sound attenuation characteristics of the window, while maintaining the historical character of the house or building.
Secondary glazing systems are an affordable and efficient solution for residential, commercial, and heritage buildings seeking improved thermal and acoustic insulation.
What Is Secondary Glazing?
Secondary glazing utilizes a separate pane of glass that is then placed (installed) on the inside of an existing window so that an air gap is created between the original window and the newly installed secondary glass panel. This air gap will provide significant thermal and acoustic insulation improvement compared to standard single-glazed windows or methods of secondary glazing installation.
Unlike full window replacement, secondary glazing allows existing frames, glass, and historic detailing to remain intact. This makes it particularly suitable for:
- Heritage and conservation homes
- Older residential properties
- Urban homes exposed to traffic noise
- Commercial and mixed-use buildings
Secondary glazing delivers modern performance upgrades while maintaining the original aesthetic of the property.
Types of Secondary Glazing Systems
Perma Seal Windows and Doors offers a range of custom secondary glazing systems, each designed for different functional and aesthetic requirements.
Fixed Secondary Glazing
Fixed systems are permanently installed and do not open.
- Best for maximum thermal and noise insulation
- Ideal for windows that do not require regular access
- Excellent performance for bedrooms and street-facing rooms
Sliding Secondary Glazing
Sliding panels move horizontally or vertically.
- Suitable for frequently used windows
- Easy ventilation and access
- Common in residential and commercial applications
Hinged Secondary Glazing
Hinged systems open inward like a door.
- Allows easy cleaning and maintenance
- Ideal for heritage windows with restricted exterior access
- Balanced insulation and accessibility
Magnetic Secondary Glazing
Magnetic panels attach using discreet magnetic strips.
- Cost-effective and removable option
- Suitable for renters or temporary installations
- Provides moderate insulation improvement
Key Benefits of Secondary Glazing
Secondary glazing is a practical and discreet solution that improves comfort, efficiency, and protection—without altering the character of your existing windows.
Improved Energy Efficiency
Adding secondary glazing creates an extra insulating layer that reduces heat loss, limits cold drafts, and improves thermal performance. This helps keep interiors warmer in winter, cooler in summer, and lowers heating and cooling costs over time.
Effective Noise Reduction
Ideal for homes and businesses exposed to traffic, construction, or urban noise, secondary glazing significantly reduces sound transmission by combining multiple glass layers with an insulating air gap.
UV Protection for Interiors
Secondary glazing blocks a significant amount of harmful UV rays, protecting carpets, furniture, artwork, and flooring from fading while still allowing natural light to fill your space.
Completely Custom-Molded
All secondary glazing systems from Perma Seal Windows and Doors are custom-built to fit within your existing window frames, ensuring a low-profile, seamless appearance without compromising the original design.
Low Profile Installation
Installed from the interior with no major construction or demolition required, secondary glazing is a cost-effective upgrade that minimizes disruption to your daily routine.
Ideal for Heritage and Modern Properties
Secondary glazing is great for heritage properties. Heritage properties (or historic buildings) often require the original windows to be preserved. Secondary glazing allows the building owner to meet the expectations of modern comfort and efficiency while preserving the architectural integrity of the building.
However, secondary glazing is also suitable for modern residential and commercial buildings, allowing owners to increase performance without the need to install new windows.
Secondary Glazing vs Window Replacement
When comparing secondary glazing to replacing windows, secondary glazing offers several advantages:
- Lower cost than full window replacement
- No impact on exterior appearance
- Faster installation with less disruption
- Preserves historic and original window features
- Strong thermal and acoustic performance improvements
For many Edmonton homeowners, secondary glazing provides the best balance between performance, preservation, and affordability.
Transform Your Space with Perma Seal Secondary Glazing
With Perma Seal’s No Draft Secondary Glazing systmes, both performance and comfort are improved without sacrificing anything. Perma Seal’s secondary glazing is discreet, durable, and extremely effective at providing improved insulation, sound insulation, and UV protection all in one system.
Secondary glazing provides many advantages that are not seen immediately. In addition to providing privacy and thermal protection, it also creates a quieter and more comfortable space year-round and is a surefire way to protect the building.
Craftsmanship You Can Trust
With over 60 years of innovative craftsmanship Perma Seal Windows and Doors has built a solid reputation as a manufacturer of quality products. Our expert craftsmanship creates beautiful secondary glazing installations while upholding the integrity of your current window system.
Each of our window systems has been created to fit seamlessly within the current design of your home and provide you with improved performance, comfort, and the ability to create an enhancement to the unique features of your home.
A Practical Upgrade That Makes a Real Difference
Secondary glazing is an excellent route to greater comfort, efficiency, and the ability to preserve your home. Secondary glazing improves insulation, provides sound isolation, and protects the interior of your home without changing the overall character of your windows.
At Perma Seal Windows and Doors secondary glazing is a natural extension of the original design of each window system we offer. Aesthetically appealing, high-performing, and built to last—secondary glazing will be virtually unnoticeable and will be of the same colour as the original window.
Frequently Asked Questions (FAQ's)
What is the cost of secondary glazing in Edmonton?
The cost of secondary glazing in Edmonton depends on window size, glazing type, and system design. However, it is generally more affordable than replacing windows and offers excellent long-term value.
Can secondary glazing be installed on heritage or listed buildings?
Yes. Secondary glazing is widely used on heritage and conservation properties because it preserves original windows while improving performance.
Does secondary glazing reduce noise?
Yes. Secondary glazing is highly effective at reducing external noise, especially when combined with an appropriate air gap and glazing thickness.
Is secondary glazing energy efficient?
Secondary glazing significantly improves thermal insulation, reduces drafts, and helps lower heating and cooling costs—making it well suited for cold climates like Edmonton.
Is secondary glazing removable?
Certain systems, such as magnetic or hinged secondary glazing, can be removed or opened for cleaning and maintenance.
Transform Your Home with Perma Seal’s No Draft Secondary Glazing
Experience the ultimate in comfort, energy savings, and noise reduction with our custom No Draft Secondary Glazing. These easy-to-install solutions offer a sleek, modern look while providing unmatched insulation and UV protection. Enhance the atmosphere of your home by keeping it quieter, more energy-efficient, and protected from the outside elements. With Perma Seal’s No Draft Secondary Glazing, you can preserve your original windows while upgrading your living space—effortlessly improving both function and style.
