Glevum Windows Doors Conservatories

Vertical Sliding Secondary Glazing

Perfect for heritage properties and modern buildings alike. Vertical sliders have a tilt option that enables both panels to individually pivot inwards for easy access and cleaning.

This secondary glazing option is perfect for heritage properties and modern buildings alike. Vertical sliders have a tilt option that enables both panels to individually pivot inwards for easy access and cleaning.

Ideal for when you’re unable to replace sash windows with modern double glazing in a listed or heritage property and wish to maintain sightlines of original windows. Secondary glazing sash windows are fitted discreetly on the inside giving you all the advantages of modern living without impacting the façade. They’re also lockable for additional security.

For modern properties, our sash window secondary glazing offers a vintage look. This enhances your property stylistically while preserving the modern comforts of 80% noise reduction and 65% extra thermal insulation.

Designed specifically for sash windows as well as other vertical sliding units, or where regular hinged panels are not suitable. Just like a traditional box sash, our vertical sliding units feature two sashes, one above the other, retained within an outer frame.  They are supported by robust spring balances for ease of motion and weight support and fitted with brass rollers of a smooth sliding action.

Special tilt-in feature:

Each secondary sash can be independently released from the outer frame. It comes with restrictor arms as standard which, once removed, allows the unit to be be pivoted inwards by almost 180° making it easy to access all frames. The outside of the glass will be as easy to clean and maintain, without compromising either sightlines or the overall style of your windows.

Customised:

We offer a range of 4mm – 8.8mm glazing for thermal requirements as well as reduced noise reduction within your property. You can decide whether you would prefer face-fixed or reveal-fixed and we boast a choice of over 200 RAL colours to match the look of your existing windows. The additional locking facility provides extra security and our 10-year guarantee means complete peace of mind. It remains one of our most popular options for conservation area buildings and is gaining favour even in more modern developments.

  • Noise, cold, security, condensation issues managed and controlled.
  • Multiple design options: historic, contemporary, or unusual designs, 200 frame colours, lift out panels.
  • Multiple glazing options.
  • 10 Year Guarantee for all frames and glazing.
Vertical Sliding Secondary Glazing
Related Blog(s)

We are a proud supplier of Granada Secondary Glazing (The UK's largest bespoke secondary glazing manufacturer).

How can we help?

Send us an email or give us a call
0800 332255

Glevum Windows Doors Conservatories. Leading AWARD-WINNING Gloucestershire supplier and installer of Aluminium and uPVC.

Free home visit

Book today

Glevum Windows Doors Conservatories. Leading AWARD-WINNING Gloucestershire supplier and installer of Aluminium and uPVC.

A very personal service; I felt valued as a customer and they listened to what I wanted. Excellent quality of product and service. I decided not to go with a larger well-known brand as they did not provide the same personal service in the quotation stage.

J. Miller (Symonds Yat)

Excellent everyone was professional and yet friendly. I felt all were giving me good service and I felt a valued customer.

D. Morse (Lydney)

Always helpful and courteous whichever department one is speaking with.

Fitters are skilled and careful. Products are not the cheapest on the market but they are of the best quality and extremely good value for money.

R. Savage (Worcester)

Excellent service from start to finish, we had secondary Glazing fitted into our dental practice. Glevum attended when they said they would, completed the job with minimum disturbance to the daily running of the practice, and left their work place clean and tidy. The glazing has made such a difference, staff are much warmer and the radiators have been turned to low.

H. Pugh (Gloucester)

Glevum were prompt in quoting for the work. The order was placed and doors and windows far more quickly than other companies were able. The fitting was completed to a high standard. I'm very happy with the work and product!!

K. Smit (Bristol)

So happy with installation, can really feel the difference in room temperature. Fitters were excellent, very pleasant and left everywhere clean and tidy. Very professional job. Would certainly recommend. Thankyou Glevum.

L. Hollis (Ross-on-Wye)

Excellent service from showroom visit, Rep visiting us to help us choose and price work required, and fitting team. There were small chips on the handles of one window - spotted by the installation team- handles were changed within 2 days. All staff were friendly and efficient, and the fitting team cleaned up after installation. A pleasure to do business with.

This visit was for 4 windows at the front of the house, Next job will be for 7 at the back. Glevum will be our first call.

R Blackman (Ross-on-Wye)

A very personal service; I felt valued as a customer and they listened to what I wanted. Excellent quality of product and service. I decided not to go with a larger well-known brand as they did not provide the same personal service in the quotation stage.

J. Miller (Symonds Yat)

Excellent everyone was professional and yet friendly. I felt all were giving me good service and I felt a valued customer.

D. Morse (Lydney)

Always helpful and courteous whichever department one is speaking with.

Fitters are skilled and careful. Products are not the cheapest on the market but they are of the best quality and extremely good value for money.

R. Savage (Worcester)

Excellent service from start to finish, we had secondary Glazing fitted into our dental practice. Glevum attended when they said they would, completed the job with minimum disturbance to the daily running of the practice, and left their work place clean and tidy. The glazing has made such a difference, staff are much warmer and the radiators have been turned to low.

H. Pugh (Gloucester)

Glevum were prompt in quoting for the work. The order was placed and doors and windows far more quickly than other companies were able. The fitting was completed to a high standard. I'm very happy with the work and product!!

K. Smit (Bristol)

So happy with installation, can really feel the difference in room temperature. Fitters were excellent, very pleasant and left everywhere clean and tidy. Very professional job. Would certainly recommend. Thankyou Glevum.

L. Hollis (Ross-on-Wye)

Excellent service from showroom visit, Rep visiting us to help us choose and price work required, and fitting team. There were small chips on the handles of one window - spotted by the installation team- handles were changed within 2 days. All staff were friendly and efficient, and the fitting team cleaned up after installation. A pleasure to do business with.

This visit was for 4 windows at the front of the house, Next job will be for 7 at the back. Glevum will be our first call.

R Blackman (Ross-on-Wye)

Scroll to Top