Premium Local Installers

Local Manufacturing

Bespoke Product Designs

Made in the UK

Convenient, High Performing Secondary Glazing installations across Bristol, Bath, and the Surrounding Areas

At DM Windows, we recognise that tradition matters. If you’d like to keep your existing window in place but boost its performance so that it excels at modern benefits, secondary glazing may be your best option. By adding an additional window pane, you are promised greater thermal efficiency, cheaper energy bills, superior soundproofing, preserved aesthetics, stronger security, and a lower-priced installation.

Our secondary glazing products come courtesy of Granada, who are specialists in the trade, manufacturing 25,000 secondary glazing frames each year.

Secondary glazing can be installed on any window style, from casement windows to sliding sash to bow windows. At DM Windows, we possess years of industry experience as installers, and pride ourselves on our exceptional customer service, quality installations, and competitive pricing. When you choose us for your secondary glazing needs, you can rest assured that you’re in safe and reliable hands.

Book a free appointment today!

Retain Your Existing Aesthetic with Granada Secondary Glazing

Perhaps the most notable perk of secondary glazing is that it doesn’t require a total upheaval of your window unit. By simply adding a pane, you retain your window’s character and traditional appearance.

This is particularly effective for single glazed windows that have fallen short when it comes to the expectations of modern homes – meaning it’s particularly beneficial for period properties, older cottages, homes in noisy neighbourhoods, or perhaps heritage areas where it’s non-negotiable to retain a traditional aesthetic that blends into the rest.

Enquire Today!

Why opt for Secondary Glazing?

  • Cost-effective
  • Compared to replacing your window unit with either double glazing or triple glazing, opting for new secondary glazing is more affordable.

  • Easy Installation
  • Secondary glazing installations from DM Windows aim to cause minimal disruption to your home life, and we ensure no mess is made.

  • Improved Thermal Efficiency
  • Secondary glazing creates a dead air space between your existing windows and the new panes – this acts like a thermal insulator, significantly reducing heat loss or transfer.

  • Lower Energy Bills
  • As a result of this improved energy efficiency, you’ll be less reliant on your appliances to generate the heat. This means that radiators, electric heaters, fans, and cooling systems will have less of an impact on your bills.

  • Improved Security
  • Simply put, two panes of glass are more secure than one. Your home will have a higher degree of protection against potential intruders, helping with your peace of mind.

  • Preserve Existing Windows
  • Whether you have architectural restrictions due to conservation areas or a listed building, limitations on rented properties, or sentimental reasons to leave the existing windows in place, secondary glazing eliminates the need to replace the entire original window structure.

  • Reversible
  • Secondary glazing is also a reversible modification, so you can easily remove it should you wish.

    Contact Us

Secondary Glazing from Granada

At DM Windows, the secondary glazing we install is manufactured by Granada, industry experts in the field that specialise in the product. Their range of bespoke secondary glazing is made to measure, featuring a strong, slim, and unobtrusive aluminium profile.

Their products offer the most effective sound insulation, effectively reducing noise by up to 80% whilst achieving 10% more thermal insulation than double glazing.

They work to make the secondary glazing barely noticeable, unless you’re specifically looking to identify it. The frames are available in a near endless array of RAL colours.

Get in Touch Today!

What Areas Do We Serve?

Our expert team of installers have over 20 years of experience in the industry, serving homes across Bristol and the surrounding areas, including:

  • Avonmouth
  • Bath
  • Bedminster
  • Clifton
  • Filton
  • Henbury
  • Keynsham
  • Kingswood
  • St Pauls
  • Southmead
  • Southville
  • Southmead
  • Westbury-on-Trym

Why DM Windows?

Working in partnership with the best local manufacturers thanks to their exceptional manufacturing processes, we can guarantee precision-engineered glazing products.

Combined with our professional team of Certass-accredited installers, you can count on our installations for long-lasting performance and absolute confidence that your new windows comply with the latest safety and security regulations. For further information, you can get in touch with our friendly customer service team on 0117 313 6884.

Book a free appointment today!

Read More

Residence Collection

Residence Collection

Available in 3 gorgeous collections; R7, R9, and R², Residence Collection windows are intricately designed for exquisite heritage installations, infusing classic character with modern day performance.

Read More

Read More

Aluminium Windows

Aluminium Windows

Typically chosen for their ultra-slim sightlines, exceptional strength and corrosion resistance, our attractive aluminium windows are sourced from the UK's leading aluminium supplier; Smart Systems.

Read More

Read More

Heritage Windows

Heritage Windows

If your improvement project requires authentic steel replacement windows combined with innovative energy saving features, our advanced Alitherm Heritage windows are designed for this purpose.

Read More

Read More

Casement Windows

Casement Windows

Typically opening outwards from the left or right hand side, straightforward, versatile and easily personalised, our uPVC casement windows are a popular choice for any type of property.

Read More

Read More

Sliding Sash Windows

Sliding Sash Windows

A much-loved architectural feature in historic Georgian, Victorian and Edwardian households, their wide openings and inspiring swathes of glass also add a unique twist of character to more modern homes.

Read More

Read More

Tilt & Turn Windows

Tilt & Turn Windows

Turning to open fully (like a casement window) or tilting inwards for secure ventilation, dual-opening tilt and turn windows are favoured in homes that require more space with limited access to outside.

Read More

Read More

Bay & Bow Windows

Bay & Bow Windows

From curvaceous bow windows to angled bay windows, our frames add timeless charm whilst giving the illusion of more space where it's needed most.

Read More

Read More

Flush Sash Windows

Flush Sash Windows

Featuring sashes that sit flat (flush) against the external face of the window, get the look of timeless timber frames without any of the maintenance issues.

Read More

Frequently Asked Questions

What is the cost of secondary glazing?

The exact cost of your secondary glazing solution will depend on several factors, including the style of window and it's size. For example, the cost of secondary glazing on a vertical sliding window may differ to a casement window. Secondary glazing is cheaper than installing new double or triple glazing, but still leads to lower heating bills.

Does secondary glazing require planning permission?

In most cases, planning permission is not required for secondary glazing. However, it's always best to get in touch with our team if you're unsure.

What if I live in a protected area or heritage property?

Secondary glazing is recommended for conservation areas and heritage properties, as the aesthetics of the window frame and glazing remain the same.

Can secondary glazing reduce my condensation issues?

Yes, secondary glazing can lead to less condensation, another added benefit alongside others like noise reduction and heat retention. The cold surface on single panes can lead to moisture in the air condensing on the colder glass, but secondary glazing creates an additional air gap, increasing the overall insulation and warming the inner surface of the window.

Light oak effect residence collection windows interior view
Speech Mark

A quick and quality installation. They matched a new UPVC window to our existing wooden windows and you can’t tell the difference from the outside!

Daniel, Bristol

Modern black flush sash windows installation
Speech Mark

I can highly recommend DM Windows – a great job from start to finish on my lovely new windows and doors! Professional, helpful and friendly staff.

Sindy, Bristol

Open blue composite door

Ready to discuss your next project?

From straightforward window and door replacements to bespoke building work, we will do everything we can to create the home of your dreams as quickly and as smoothly as possible.

Arrange a free consultation
Smart
Distinction Doors
Spectus
Residence Collection
Korniche
Origin