Commercial Upvc Double Glazing

Commercial Building Design

Commercial building designs are increasingly including commercial Upvc double glazing as one way of increasing the energy efficiency of the spaces we live and work. Rehau Upvc double glazed windows and doors are used in commercial buildings all over the world, Rehau and Thermaglaze Windows WA have a long relationship spanning over 26 years working on the manufacture and Installation of Rehau Upvc double glazed windows and doors on both the commercial and residential building projects.

We understand that time is of the essence once the project is fully underway working closely at all times with all involved to ensure the Upvc double glazed windows and doors arrive and are installed within the time frame stipulated. We are proud to have established working relations with large commercial companies that continue to grow and expand within Australia.

Colour Range 

Rehau Upvc double glazing is fairly new addition to the Australian window and door market in comparison to the Aluminium market, Rehau‘s decision was to replicate the the 6 most popular colours that the Australian Aluminium market produced.

These 6 colours designed to be high weather formulated and able to sustain the extreme Australian climate is still what is produced for the Australian Climate with all Australian Rehau manufacturers drawing stock from Melbourne.


Oyster White (Cream)

Golden Oak

Golden Oak on White (inside)

Silver on White (inside)

Ceylon (Charcoal) on White (inside)

Special orders 

Rehau Upvc double glazed windows and doors are available in array of colours by way of special order for large commercial and residential builds manufactured by Thermaglaze Windows WA

Request A Quote

Which product are you interested in?


Energy Efficiency

Ordinary windows can also represent a major source of unwanted heat gain in summer and significant heat loss in winter.

Thermaglaze Windows WA energy efficient double glazed windows and doors will make your home more comfortable, dramatically reduce your energy costs and help to create a brighter, cleaner, healthier environment.

Windows provide light, fresh air and a view to our great outdoors; they also provide a major source of unwanted heat in summer and heat loss in winter. Recent advances in glazing materials have improved the performance of windows to the extent where energy efficient windows make your home more comfortable and significantly reduce your energy cost.

Rehau Upvc Frames

With uPVC double glazed windows and doors made from Rehau profiles, the heat stays where it belongs – thanks to their very good insulating properties. That ensures not only comfortable living climate, but also lower cooling/heating bills. Windows made from Rehau profiles are suitable for low-energy houses, passive houses and energy-conscious renovation of older buildings.


Thermaglaze Windows WA manufacture double glazed windows and doors all with built in security.

Thermaglaze Windows WA fully reinforced every single piece of profile used in making a double glazed window and door, this provides durability and rigidity, contributing to home safety with all hardware used being multi point locking firmly anchoring the double glazed window and door in place deterring burglars.

Weather Resistance

uPVC windows are the perfect solution for coastal environments. Made from UPVC profile they are not effected by salt corrosion and with their dual compression seals prevents both dust and water infiltration. Made to withstand wind loads of 6500kpa they are the must have for any cyclone rated areas.

Each location, each building and every person has its own individual perception of noise.

Either a residential complex in a busy area, house in the countryside, a production facility or an office building downtown-every building project has its own requirements. Whether its planes, trains, cars, dogs, or neighbours our double glazed windows will block them out so you can enjoy your peace and quiet.

Sound Proofing Guide

Sound Insulation Class Traffic volume to Building distance middle of the street Recommended sound insulation value* of the window Reachable with all Thermaglaze uPVC Windows
1 Street 1500vehicles/ day 30-12 mtrs 28-29 dB YES
2 Road 1500 vehicles/day 12-5 mtrs 30-34 dB YES
3 Highway 30000vehicles/ day 150-80 mtrs 35-39 dB YES
4 Highway 30000 Vehicles/day 80-30 mtrs 40-44 dB YES
Performance Indicator ↓
Material ↓
Aluminium Window – Single Glazed Aluminium Window – Double Glazed Timber Window – Double Glazed Thermaglaze uPVC Double Glazed
Initial Cost Low – Medium Medium – Very High Medium – Very High Medium – High
Thermal Insulation Poor Fair Very Good Excellent
Sound Proofing Poor Good Fair Excellent
Elimination of Draughts Poor Good – Very Good Fair Very Good
Maintenance Small – Medium Minimal – Small Maximum None – Minimal
Signs of Wear and Tear over Lifespan Coating can oxidize, pit and flake due to corrosion Coating can oxidize, pit and flake due to corrosion Coatings can crack and flake, frames can warp and rot Long last quality finish
Condensation on Frames High Medium – High None – Minimal None – Minimal
Heat Loss High Medium Low – Medium Low

General Maintenance

It is advisable to carry out routine maintenance twice a year, although this may need to be done more frequently in areas of high exposure.

All parts exposed when the window or door is closed, should be washed down with warm soapy water using a soft cloth, and dried thoroughly. Avoid ammonia and abrasive cleaning agents, particularly on handles and other metal filaments.

Parts exposed when the window or door is open should be simply wiped clean, removing grime from old lubricant, airborne debris and remains of insect life etc. Special attention should be paid to keep the drainage channels free and clear of blockages.

Moving parts

A very light application of petroleum jelly or equivalent will keep the locking mechanisms and keeps in good working order, while a suitable acid and resin free grease or lubricant should be used on sliding bars, gears and face plates. Maintenance of friction stays is critical and it is important to follow instructions for lubrication and adjustment.


Windows can be fitted with key locking, push to open handles. An easy to use system, yet secure and long lasting. To operate, simply press the thumb button, turn through 90 degrees and push the window to the desired angle. To close, reverse the procedure by pulling the window closed and turning the handle back to the upright position, thus engaging it automatically. Handles can be deadlocked by using the key provided.


  • Regularly clean the window pane and PVC-U surrounds with a clear liquid spray proprietary glass cleaner.
  • Twice a year, wash down the PVC-U with warm soapy water and wipe dry.


  • Never paint PVC-U window frames.
  • Never use any paste or cream cleaners, which can be mildly abrasive.
  • Never use any type of bleach, solvent or adhesive.