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Your doors and windows take on most of the work of keeping a property safe, so they deserve products built to do the job properly. Castle Hill households like to leave them open through the warmer months, and that comfort should sit alongside a home that stays protected.

At OnGuard Security Products, we design and manufacture Castle Hill security doors, screens, windows and grilles (bars) to measure, with each one matched to the opening it protects. Everything is made to Australian Standards and finished to suit the building, so light and fresh air keep coming in while your entry points stay firmly secured.

Why Choose Our Security Doors & Screens?

That balance between strength and everyday living is where our products earn their place. Every door and screen we make meets Australian Standards for security and durability, built from marine-grade aluminium and stainless steel mesh that resist corrosion and wear.

For properties in Castle Hill, that means protection that holds its strength and its appearance through years of heat, storms and open-door living.

Built for Strength: Our security doors are made to meet Australian Standards, giving you confidence in their durability and performance.
Custom-Made Designs: We offer a range of styles and finishes, so your doors and screens can be matched to your property.
Advanced Security Features: Reinforced frames, high-tensile steel mesh, and multi-point locking systems help improve resistance against forced entry.
Sliding Security Screen Doors: A practical option for areas where space matters, allowing easy access without compromising protection.
Security Screen Doors: Designed to provide a secure barrier while still allowing airflow and visibility.
Security Window Screens: Custom-fitted to reinforce windows while maintaining ventilation and natural light.

Much of that protection sits inside the build, where reinforced frames, high-tensile steel mesh and multi-point locking systems harden the openings an intruder would try first. Nothing is off the shelf either, so you choose from a broad range of styles, colours and finishes that complement your property rather than compete with it.

Premium Security & Ventilation

The range covers every opening. Our Castle Hill security screen doors hold a firm line at the main entry while your view and airflow stay clear, while sliding security screen doors save space at patios, balconies and rear entries. Our custom-fitted security window screens give exposed windows the same defence while daylight and fresh air keep reaching the rooms behind them.

The hardware affects how a finished door performs every time you use it. Our Inner West Sydney locksmith matches quality locks and fittings to each product, so your door opens easily, closes firmly and delivers the protection the rest of the build promises.

What our customers are saying

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   Sara B 
 
 
 
 Trustindex verifies that the original source of the review is Google. Paul did a great job. Always in time, courteous and professional. Very happy
  
 
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   Tony Mcnabb 
 
 
 
 Trustindex verifies that the original source of the review is Google. Very professional installation great product very happy
  
 
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   Virtual Business & Accounting Services 
 
 
 
 Trustindex verifies that the original source of the review is Google. Paul installed a custom security door for us and the quality was great. Paul went the extra mile to ensure it was installed correctly and he ensured to take his time to do a perfect job. Fabulous attention to detail and service. The doors are custom made superbly. Highly recommended!
  
 
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   charmaine toofohe 
 
 
 
 Trustindex verifies that the original source of the review is Google. Paul and his team went above and beyond with the recent install of our pergola privacy screen. Not only a great, competitive price and product, but Paul even went as far as to help fix an existing screen door problem (not his product) that i had, at no extra cost.Would and have highly recommend On Guard.
  
 
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   Chris Freeman 
 
 
 
 Trustindex verifies that the original source of the review is Google. Paul, I must say what an amazing job. Was not expecting the quality of the finished product which is fantastic. As mentioned you undersell the product. It is of the highest quality and workmanship. Customer service is terrific with arriving promptly to install. All I can say is wow. Would highly recommend anyone looking for a superior, high quality pool pump enclosure. A++
  
 
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   Paul Galassi 
 
 
 
 Trustindex verifies that the original source of the review is Google. I found Onguard Security Products to be friendly at the same time as prompt on time with their service, advice and workmanship. Thanks guys.
  
 
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   D Kennedy 
 
 
 
 Trustindex verifies that the original source of the review is Google. Paola goes 'Over & Beyond' to ensure that the entire customer journey is hiccup-free. He'll ensure you make the right choice, and his attention to detail means you end up with a product that exceeds your initial expectations.

There is no sleek marketing here, Paola simply provides a quality product, great service, exceptional delivery and timely installation. What a refreshing change.

Cannot recommend highly enough.
  
 
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   Matt Silsby 
 
 
 
 Trustindex verifies that the original source of the review is Google. Excellent service provided. Everything went smoothly, from the measure and quote, the re-measure, and the install. We were kept in the loop regarding the likely timing, and at all times everyone was friendly and helpful! We will be getting more work done with OnGuard after this positive experience
  
 
  
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Security Solutions for Castle Hill Homes and Businesses

Protection works best when it covers the whole property rather than the front door alone. For homes, decorative security doors and custom screens can be drawn up to suit clean modern lines or traditional elegance, while Castle Hill security screens for windows defend the openings most often overlooked and let air and natural light keep moving indoors.

Commercial premises ask more, so our commercial-grade doors and window screens stand up to heavy daily use and deter unauthorised access at retail stores, offices and warehouses, with visibility and ventilation open across the working day. Beyond the building itself, our Inner West Sydney aluminium gates secure driveways, side access and boundary openings with a tidy and consistent finish.

Energy Efficiency & Added Benefits

Good security products go on earning their place well beyond the moment the door is locked. Ours add insulation at the opening and let fresh air move through the property, so indoor temperatures stay comfortable and energy costs come down, while direct sunlight and UV are held back through the hottest part of the day.

Comfort covers more than temperature. Our products also stand between your household and insects or rough weather, and our Inner West Sydney fly screens let you keep doors and windows open with the bugs left outside.

Upgraded Protection for Your Auburn, NSW Home or Business

If you want to improve the security on your Auburn, NSW property without compromising how it looks or feels, the right doors and screens can offer a reliable, long-term solution.

Contact our team to find options that suit your space and help secure the areas that matter most.

Frequently Asked Questions

What are the benefits of installing security doors and screens?

Security doors and screens give your main entries a strong physical barrier while the property stays open to natural ventilation. They deter intruders at the points most likely to be tested, and they add defence against insects and harsh weather at the same time.

Security screens for windows reinforce the openings that are simple to overlook. The whole range also helps slow heat transfer, which supports energy efficiency and keeps indoor spaces comfortable year-round.

What materials are used in security doors, screens and windows?

High-strength aluminium frames and premium stainless steel mesh form the core of our security doors, screens and windows, chosen for durability, corrosion resistance and long-term security.

Custom security doors can be supplied with reinforced frames and multi-point locking systems, and our security screens for windows use the same frames and mesh for strong yet discreet protection.

Can security doors and screens be customised to match my home’s style?

Yes. Our security doors and screens are made to order in a wide choice of designs, colours and finishes, so the end result suits the front of your home, whether the look is sleek and contemporary or more traditionally decorative.

Our screen doors and security window screens also come in several mesh styles, which lets you settle the balance between protection and clear outward visibility.

Do your security doors and screens meet Australian Standards?

Yes. Our security doors and screens comply with Australian Standards AS5039-2008 and AS5041-2003, and every door is tested for impact, forced entry and knife shear resistance. Our security window screens are built to those same standards, which makes them a dependable choice for homes and businesses.

What maintenance is required for security doors and screens?

Very little is asked of you once the installation is done. A wash with mild soapy water clears dust and grime from the frames and mesh, and abrasive cleaners are worth avoiding, since they can dull the finish on mesh panels and security window grilles.

Do security doors and screens improve energy efficiency?

Yes. Our security doors and screens add insulation at the opening and allow fresh air to reach indoor spaces naturally, holding back direct sunlight through the day.

Screen doors, sliding security screen doors and security window screens all support cross-ventilation, so rooms stay cooler in summer and warmer in winter with less demand on heating and cooling.

Request a Free Security Doors & Screens Quote Today

What We Do Best

Qualified Locksmith

We are a member of the Locksmith Guild of Australia. You are assured that the person who installs your door, window, grill, etc. is a qualified Locksmith.

Australian Made

All products are Australian made in our Sydney Factory to Australian Standards. We know our products are built to withstand the harsh Australian weather conditions.

Kids Don't Fly

We provide a certificate that will prove that your building will comply with the Strata Schemes Management Regulation (2010) for Strata under the Kids Don’t Fly government incentive.