Unlock the Potential of Your Sash Windows with Secondary Double Glazing in London and Surrey

Enhancing Energy Efficiency Without Compromising Charm

Unlike traditional secondary glazing that obstructs the opening of the sash windows, our panes fit within the glazing bars so seamlessly blend in, preserving the authentic look and feel of your sash windows and making it the perfect choice for listed buildings in London and Surrey

Sash Window Repairs London

Introducing our innovative secondary glazing solution, designed specifically for sash windows.

At Novells, we understand the importance of preserving the timeless beauty of your traditional sash windows while unlocking the benefits of improved energy efficiency.

Secondary glazing for sash windows, also known as sash window secondary glazing in London and Surrey, offers a cost-effective and unobtrusive way to enhance the thermal performance of your home.

By adding an additional layer of glazing inside the existing sash window frame, we can create a highly effective insulating barrier that traps a layer of air, reducing heat loss and improving overall comfort.

Unlike traditional double glazing that requires replacing the entire window, our secondary glazing for sash windows allows you to maintain the charm and character of your existing windows.

Keep Your Box Frames
Double Glazed Sash Windows
New Double-Glazed Sashes Fitted
Fitted Double Glazed Windows
Sash Windows Transformed
Affordable Sash Double Glazing

Three easy steps to effectively double glaze your sash windows

Schedule a Call
We'll visit your home assessing each of your windows. We'll then prepare and send you a proposal., detailing how the work will be completed and the investment required. We won't try to sell you windows on the day.
Conduct the Work
We will treat your home as our own, protecting everything before we start work. This usually entails furniture and floors with dust sheets. We expect to spend a full day on each new window installation.
Love Your Sash Windows
Fall in love with your sash windows all over again. Make every other feature come alive after your new sash windows have been fitted, making your house feel truly like a home.
Sash windows in London and Surrey

Let us Transform your Sash Windows

We will use our 50 years of combined experience together with our proven glazing systems to upgrade your windows

Secondary Glazing for Your Sash Windows

Experience the best of both worlds – the timeless charm of your sash windows and the modern benefits of enhanced energy efficiency. Unlock the potential of your home with our secondary glazing solution.

Key Benefits of Secondary Double Glazing for Sash Windows:

Enhanced Energy Efficiency: Our secondary double glazing solution can reduce heat loss and emissions by up to 50%, helping you save on energy costs and improve your home’s Energy Performance Certificate (EPC) rating.

Improved Comfort: The insulating properties of our secondary glazing create a more comfortable indoor environment, regulating temperatures and reducing draughts.

Cost-Effective Solution: Compared to full window replacement, our secondary double glazing for sash windows offers a more affordable way to enhance energy efficiency without compromising on quality or aesthetics.

Sustainable Approach: By retaining your existing sash windows and adding our secondary glazing, you’re contributing to a more eco-friendly future, reducing your carbon footprint and saving tonnes of CO2 emissions annually.

With almost two decades of experience and as members of FENSA, our dedicated team and have successfully worked on thousands of wooden sash windows across London & Surrey.

Want your sash windows draught proofed and overhauled at the same time?

Click here to find out more about our sash window refurbishment and draught proofing service.

Alternatively, contact us today to learn more and start your journey towards a more comfortable, efficient and sustainable living space.

Past Projects

Alternative Options to Increase the Energy Efficiency of your Home

Sash Window Refurbishment and Draught Proofing Solution

Sash Window Refurbishment & Draught Proofing

We can refurbish your sash windows in London and Surrey for a fraction of the cost of buying new.

Timber double glazed box sash windows

New Timber Double- Glazed Replacement Box Sash Windows

New replacement double glazed box sash windows. Combining classic charm with modern efficiency. 
Double glazed sash windows in London and Surrey

New Timber Double- Glazed sashes fitted to Existing Box Frames

Single to double-glazed sashes, without replacing your frame. Combined with our refurbishment service, your windows and home will be transformed.

Novell's Sash Window Cord Replacement Service

Sash window cord replacement ensures operation and longevity for your sash cord windows.