Internally Glazed Windows 

Improve the outside appearance of your home with our secure, visually appealing, and energy-efficient windows. Moreover, we are a family-run business with more than 50 years of experience in building bespoke conservatories. For further information on our internally glazed windows, conservatories, or doors, please get in touch. We provide free, no-obligation quotations too!



Here at Dave Edwards Double Glazing, we pride ourselves on providing products of the highest quality and our range of windows are no different. The windows we supply include a 70mm sculptured profile, and our 10-year guarantee includes colour fastness. The windows we supply will not discolour over time as we use virgin white uPVC. All our windows feature key locking as standard and we also install them with night vent locking. We also offer egress (fire escape) hinges, and we are always happy to advise you as to where is best to place these hinges. We can provide Residence 9 windows, tilt and turn, sliding sash , and uPVC window options. These windows use the Deceuninck profile to ensure your home is warm, comfortable, and a pleasure to be in.


Energy-Saving Glass

We offer Pilkington K Optiwhite toughened energy-saving glass with a warm edge spacer, dual-sealed, and argon-gas filled. Our windows come in a variety of colours, including white, rosewood, and golden oak. 

  • Cream
  • Anthracite Grey
  • Black

And many more. Please ask or visit our showroom.

Windows We Offer

Tilt and Turn

These are known for their unique opening mechanism which tilts them inwards and ventilates your home. They also open internally, allowing you to clean them easily.

Sliding Sash Windows

These installations are perfect for replacing timber box sash windows. Constructed from low-maintenance uPVC, these are a popular option.

Residence 9

The Residence 9 windows are low-maintenance, thermally efficient, and frequently approved for use in conservation areas by local planning authorities.

Infinity Flush Sash Windows

These installations are perfect for replacing timber box sash windows. Constructed from low-maintenance uPVC, these are a popular option.

Double Glazing

This is essentially two panes of glass separated by a small cavity filled with argon gas. These gasses conduct heat poorly, meaning less heat is able to escape through the window and that your home is more thermally efficient.

Triple Glazing

Using three panes of glass and more glass compared to double glazing; this installation is perfect for sound reduction.


Toughened Safety Glass

We offer a free, no-obligation quotation with friendly advice and guidance for all our window products. Moreover, for your peace of mind, we use energy-saving glass to British standards, and where required, we also use toughened safety glass. After completion of the installation, you will receive your Energy Rating Certificate, which you will need when selling your home. We will also register your installation with FENSA on your behalf.

Do You Live in a Listed Building?

We are proud to offer you the new ‘Heritage Residence 9’ range of uPVC windows which are sympathetic to your requirements. Imagine having the benefit of uPVC which looks exactly like wood and most importantly, pleases the Listing Officer! 

Next time you need internally glazed windows, energy-saving glass, or toughened safety glass in Lancashire, please make Dave Edwards Double Glazing your first and only port of call for aesthetics, performance and security.



Throughout over 50 years in business, we have built conservatories in a range of shapes and sizes on properties in local areas and locations further afield. 

Bespoke Roofing Options

Transform your conservatory into the perfect living space by adding a roof. Our conservatories are available with Victorian, Edwardian, sun lounge, gable end (including sunburst) combinations, and many more bespoke roofing options. They include polycarbonate panels and our bestselling subtle blue self-cleaning glass roof. Plus, we also arrange for the walls to be plastered and fully insulated.

French Windows

Our French Windows consist of master and working slave doors, both with handles, 3 hinges, and dog bolts for extra security. Everything is internally glazed again for extra peace of mind. Our French windows are available in white, rosewood, and golden oak. To reduce costs, you can choose white for the inside of the windows. Other colours available include:

  • Cream
  • Anthracite Grey
  • Black

And many more. Please ask for more information or visit our showroom.

Free, No-Obligation Quotes

Here at Dave Edwards Double Glazing, we provide a free, no-obligation quotation as well as friendly advice and guidance for electrics, plastering, and air conditioning units. Please contact us today to discuss your requirements.

Like What You See?

Be sure to contact our efficient team about our conservatories and internally glazed windows