New windows. No mess. No fuss.
If you’ve been putting off replacing your windows because of the cost, the disruption, or the thought of tradies through your home for days on end, CapLock is worth a look.
Our unique system caps directly over your existing window frames. We remove the old glass, fit a brand new window, and leave your walls, tiles, and render exactly as we found them. One trade. No Mess. What we quote is what you pay.
Excited about transforming your windows with CapLock®?
No ripping out your existing frames. Zero damage to walls, render, or tiles.
No ripping out your existing frames. Zero damage to walls, render, or tiles.
Most homes are done in a day.
Under an hour per window. Most homes are done in a day.
One trade, one visit. No parade of builders, plasterers, and painters
One trade, one visit. No parade of builders, plasterers, and painters
Fixed pricing. No surprises, no hidden costs.
Fixed pricing. No surprises, no hidden costs.
Patented and award-winning technology, developed right here in Sydney.
Patented and award-winning technology, developed right here in Sydney.
Choice of glass: tinted, acoustic, thermal, double-glazed, or standard.
Choice of glass: tinted, acoustic, thermal, double-glazed, or standard.
Efficient, damage free Installation
Predicted financial outcome
Improved sound insulation
Drastically improved energy efficiency
Re-design window configuration
Change the colour of your frame and/or glass
Tested to Australian standards
Environmentally more impactful
How upgrading your windows to CapLock® works
1.
We visit your home and take a look at your existing windows.
2.
We provide a fixed quote with no obligation.
3.
Our team caps over your existing frames and installs brand new windows.
4.
You're left with modern, energy-efficient windows and a clean home.
Old Way
Initiate contact
Book quote
Rip out entire window, including frame
Install new window
Book trade to fix brickwork
Book trade to fix render
Book trade to fix gyprock
Book trade to fix tiles
Book trade to paint
Wait for all of these trades finish
Pay individual invoices
New Way
Call CapLock
Measure and quote
Quick and easy install
Celebrate your savings
The CapLock® way
CapLock prevents the issues of traditional window installation which involves ripping out your entire existing window frame. This can cause damage to your render, paintwork, brickwork, gyprock and tiles. It’s noisy, dusty, time consuming and expensive.
Once a new window is installed the repair work begins to fix this damage, requiring different trades, different personalities, different trucks clogging your driveway and streets, aligning their diaries with other trades and yours, excuses of not turning up and poor weather challenges.
This is what you are avoiding
Intelligent, Fast, Effective
Instant and seamless upgrade
By removing the old glass fixed panel and old glass sliding panel, but leaving the outer good framework in its place, the CapLock system allows you to cap over existing window frames with a sleek modern design providing an instant window upgrade to your home.
Options to suit your needs
At CapLock, we have designed 2 styles of windows, in various different glass thicknesses, including glazed. We have a sliding window system and we also have an awning window system, both available in various formats. We can also remove and redesign a double hung sash window and replace it with a sliding or awning window configuration.
Improved insulation
The glass may be tinted if required and even thermal and/or acoustic rated at the same time.
Increased sound proofing
Your choice of new windows can be of greater density, including double glazed.
Variety of styles and colours
Handles also come in a range of styles and colours.
A future proof investment
All CapLock systems are designed for easy and inexpensive future repair work with a snap out capping system that allows the repairer to replace with brand new track, felt and rollers.
Flyscreen, security screen and privacy friendly
The new framework will allow for a flyscreen or security screen and accommodate standard or block out blinds.
You now have a choice
Home renovations offer a multitude of options, but until recently, window renovations had only one. Now, homeowners have two choices.
One trade. One and done!
The customer now has a choice
Putting CapLock’s effectiveness into practical terms, a building can obtain an extremely high (WERS) efficiency rating at a competitive price, a quarter of the time, and less intrusive than the traditional method of ripping out and replacing old windows.
How CapLock came to be
Anton Brooks spent over 30 years building and running service businesses. Through his previous company, Beautiful Group of Trades, his team was completing window replacement jobs the traditional way: ripping out frames, patching walls, coordinating multiple trades, and watching jobs blow out in cost and time.
After 3.5 years of research and development, the CapLock system was ready. A patented method that installs brand new windows over existing frames. No damage, one trade, one visit.
CapLock is supported by six Australian and New Zealand window manufacturers. It’s award-winning, trade-proven, and made for Australian homes.
Based on the Northern Beaches
We’re based in Cromer on Sydney’s Northern Beaches and we know this area well. Salt air, coastal weather, older brick homes with frames that haven’t been touched in 30 years. We’ve seen it all and CapLock was designed with these conditions in mind.
Our promise
Fixed pricing. No variations, no surprises.
One trade, one visit.
We respect your home. Tools packed up, everything tidy before we leave.
We only install windows we're proud of.
Meet the CapLock Team
Anton Brooks
Australia via South Africa
Founder
Chris Chilingirian
Dee Why
3 years
Pablo Acosta
Narrabeen via Argentina
3 years
Gabriel Zaniboni Fiore
Dee Why via Brazil
1 year
Ales Matousek
Manly Vale via Czech Republic
3 months
Rhys Farrell
Dee Why via Ireland
1 year
Making Window Replacements Easy for Strata Companies
If your strata complex still has old 3mm plate glass windows, you’ve probably noticed how hot the apartments can get during summer. Standing near those windows can feel like the heat is radiating straight inside, making it harder to keep interiors cool and comfortable.
We understand that for strata companies, coordinating window replacements across multiple units can seem like a big task, with access, approvals, scheduling, and communication between owners all needing to run smoothly. That’s where we make the process easier.
Our team specialises in replacing outdated windows in low-level apartment blocks, offering a complete, well-organised service that minimises disruption for residents and property managers. We handle everything from site inspection and measurements to safe removal and installation of new, energy-efficient glazing.
We also provide clear communication throughout the process, from quoting to completion, ensuring strata managers and owners’ corporations stay informed at every stage. With our experience in strata work, we can coordinate unit access, manage safety requirements, and deliver the project efficiently and on schedule.
Replacing old windows doesn’t have to be complicated. With the right planning, products, and professional support, your strata can improve comfort, reduce energy costs, and refresh the look of the building, all with minimal hassle.
Partner with CapLock®
Become a licensed installer
With the CapLock system you can install and complete jobs 40% faster per yield without having to rely on additional trades due to damages caused by traditional rip out and install methods.
As a window manufacturer
Would you like your window system to operate within the same technology as CapLock? Contact the senior CapLock team.
Get a free quote for your home
We keep the process simple. Fill in the form and we’ll be in touch within one business day to arrange a time to visit. No obligation, no sales pressure, no charge for the visit.
What happens next?
- Fill in the form, or call Anton directly on 0432 992 445
- We’ll be in touch within one business day
- We visit your home, look at your windows, and answer any questions
- You receive a fixed, written quote with no obligation
Frequently asked questions
How long does installation take?
Most windows take under an hour each. A standard home with 8 to 12 windows is usually completed in one to two days.
Do you need to come inside my home?
Yes, for most installations, we’ll need brief access inside to fit the windows correctly. Our team will always treat your home with care.
Will there be any damage to my walls?
No. We work over your existing frames and leave your walls, render, and tiles completely untouched.
What windows does CapLock work on?
CapLock works on most standard aluminium sliding and awning windows. We can also convert double-hung sash windows into a sliding or awning configuration.
What areas do you service?
We’re based in Cromer and primarily service Sydney’s Northern Beaches. Contact us to confirm your suburb. In most cases, we can help.
How much does it cost?
Every home is different, so we provide fixed quotes in person. There are no hidden costs or variations. What we quote is what you pay.
Is CapLock patented?
Yes. CapLock is a fully patented window capping system, recognised with a national award for Most Innovative Window System in 2025.