Retrofit double glazing for a warmer, quieter Ballarat home.

Robson Glass retrofits double glazing into your existing timber or aluminium window frames across Ballarat and regional Victoria, so you get a warmer, quieter home without replacing your windows or paying the big-brand price.

90%

of the homes we look at can be retrofitted, with the frames kept

We fit double glazed windows straight into your existing timber or aluminium frames, so homeowners across Ballarat and central Victoria can stop losing heat through single-glazed glass without ripping out their windows or paying the patented-system price. Same family business since 1909, same walk-in shopfront since 1947.

Double glazing on your existing windows, without replacing them

Retrofitting double glazing means we take out the single pane in your current window and fit a sealed double glazed unit into the same frame. Two panes of glass with an insulating gap between them, sealed as one unit, in place of the single sheet you have now. You keep your existing timber or aluminium frames, and in most cases you would never know the work had been done from the street.

Retrofitting is a genuinely different job from replacing the whole window. No tearing out frames, no re-rendering, no builders through the house for a week. For a lot of older Ballarat homes it is the sensible way to double glaze, so the comfort is modern while the character of the house stays exactly as it is.

What goes into a retrofit unit

The glass and the glazing is our part of the job. We make minor adjustments to the frame to take the thicker unit, and if a timber frame has rotted we liaise with the other trades to sort it before we glaze.

Inside the sealed unit

Two sheets of glass with a sealed gap between them, fitted in place of your single pane.

Argon gas is effectively standard on our units because it slows heat transfer better than plain air.

Available if you want to push the thermal and glare performance further.

Spacers from 6 mm upwards in 2 mm steps. A retrofit typically runs 6 to 10 mm, depending on the frame.

Most homes can be retrofitted, and we will tell you honestly if yours cannot

Around 90% of the homes we look at can be retrofitted, and roughly 90% of aluminium frames suit it too. We tell you up front what we can do, and if yours is one of the few that does not suit retrofitting.

Usually suitable

Windows and doors we can usually double glaze

If you have a mix of window and door types across the house, that is normal. We work out which ones suit and how best to handle the rest.

The exceptions

The few we generally cannot retrofit

A small number of window types do not suit a retrofit unit. We will tell you when we come out to measure.

Timber double glazed windows are one of our most common jobs, and they are where retrofitting really earns its keep, because keeping an original timber frame is exactly what makes a period home feel like itself.

Affordable double glazing from your genuine Ballarat local

Five generations, since 1909

We are still the same Ballarat family, at the same walk-in shopfront you can visit today. That is not something a website posing as local can say.

Honest advice, no pressure

We give you an estimate over the phone, come out and measure for free, and tell you plainly what is worth doing.

Local work, local comeback

We have retrofitted double glazing into hundreds of local homes, and we will still be here if you ever need us.

What double glazing really costs, and what changes the price

Every home is different, so we quote after a free measure rather than publish a price list. The honest short answer: our retrofit double glazing runs at a fraction of the patented-system price, and the final figure comes down to a handful of things.

How many windows and doors, and their sizes

More glass and larger panes cost more.

Frame type and condition

Timber, aluminium, and whether any frames need attention before glazing.

Glass options

Standard argon-filled units, or adding a Low-E coating for extra thermal or glare performance.

Access

Upstairs windows, awkward openings and bay windows take a little more work.

For simple jobs we can often give you an estimate over the phone or email first. There is no call-out fee to come out and measure.

Warmer homes, all over the district

Homeowners across Ballarat and the region who have had their windows retrofitted.

“

The boys from Robson came out and rectified a problem with our sliding door in no time. I must say we have been dealing with Robson Glass over the last 45 years from double glazing to toughened glass shower screens and various other projects. And have always found them efficient and professional at all times.

Noel D, Ballarat

From cold windows to a cosy home, simply

From your first call to units fitted in a day by our own team, with your frames left where they are.

Tell us about your windows

Call the shop or send a few details and photos through the form, and we will give you an estimate over the phone.

We come out and measure, free

No call-out fee, and honest advice on which windows and doors suit retrofitting.

We make your units and book you in

Lead time is usually around 2 to 3 weeks while your double glazed units are made to measure.

Installed in a day, cleaned up, done

Most homes are finished in a single day, a little longer for larger jobs, by our own team, and your frames stay put.

Your double glazed units carry a glass warranty, typically 5 to 10 years depending on the unit supplier. We confirm the details when we quote.

Retrofit double glazing across Ballarat and the region

We retrofit double glazing all over Ballarat and the surrounding region, and the older, colder homes out in the towns are often where it makes the biggest difference. We travel out toward Ararat, Stawell and the Grampians for this work, so a period home an hour from the shop gets the same warm, quiet result as one down the road.

Your double glazing questions answered

Can you double glaze my existing windows?

In most cases, yes. We fit double glazed units straight into your existing timber or aluminium frames, so you keep your windows and their character. Around 90% of homes can be retrofitted. A few types, like tilt-and-turn windows and some aluminium sliders, are not suitable, and we will tell you honestly when we come out to measure.

How much does retrofit double glazing cost?

Every home is different, so we quote after a free measure rather than publish a price list. As a guide, our retrofit double glazing usually comes in at a fraction of what the patented systems charge, because we focus on the glazing that makes the difference and skip the extras you can do yourself.

Can you retrofit double glazing to timber sash windows?

Yes. Timber windows, including double-hung and sash, are some of our most common retrofit jobs, and keeping the original timber frame is exactly what helps a period home hold its character.

Can you double glaze sliding doors and French doors?

Yes. Sliding doors and French doors can usually be retrofitted with double glazed units, the same as most windows. We will confirm when we come out to measure.

Will it actually make my home warmer and quieter?

Yes. Argon-filled double glazed units noticeably cut heat loss, draughts, condensation and outside noise compared with single glazing. Adding a Low-E coating can push the thermal performance further if you want it.

Do I have to replace my whole window frames?

No. That is the point of retrofitting. We reglaze into your existing frames rather than tearing them out, which keeps the job cleaner, quicker and more affordable, and keeps your home’s look intact.

How long does it take?

Your made-to-measure units usually take around 2 to 3 weeks, and most installs are done in a single day, a little longer for larger jobs.

Do you charge for a quote?

No. There is no call-out fee to come out, measure and quote. For simple jobs we can often give you an estimate over the phone first.

A warmer, quieter home this winter, without replacing a single frame

Tell us about your windows and we will give you a fair price for retrofit double glazing. Free measure and quote, no call-out fee for the local area.

Phone (shop)

03 5332 2078

sales@robsonglass.com.au

Tell us the details and we will come back with an estimate, then arrange a measure.