Upgrade your home effortlessly with our Insert Windows, designed to seamlessly ‘insert’ into existing timber frames. Enjoy enhanced energy efficiency, reduced maintenance, and a refreshed aesthetic without compromising your home's traditional charm.
Why choose Insert Windows?
Cost-effective transformation – A budget-friendly way to modernize your home without the expense of a full renovation
Warmer, drier, healthier – Double glazing enhances insulation, reduces condensation, and minimizes drafts
Energy savings – Increased thermal performance leads to lower heating and cooling cost
Quiet and comfortable – Noise-reducing glass options create a more peaceful living space.
Low maintenance – No more sanding or painting—just durable, easy-care aluminium frames.
Custom fit – Tailored to your existing window frames for a hassle-free installation
For full replacement of existing aluminium windows, visit our System page to pick the right window and door style for you. If you are looking to retro fit old single glazing with new double glazing, it is best to talk directly to your local consultant.
Upgrade your windows and add value to your home today. Speak to your local consultant about a free in-home consultation and discover the Insert Window difference!
Core performance aspects
Noise Reduction
Double glazing significantly decreases external noise, creating a quieter indoor space.
Install into existing Timber frames
Insert frames are designed to literally insert into exisiting timber window frames. By removing the glass and internal timber parts, the new aluminium frames can be installed without significant building work both inside and out.
Improved Security
Durable materials and advanced locking systems offer greater protection.
Product Gallery
Suitable Systems
Built to withstand New Zealand’s toughest climates, all Altus systems are the ideal choice for our unique climate - coastal, high-wind, and exposed locations. With its exceptional weather-sealing capabilities and premium materials, it’s designed to perform – wherever your home is located.
Explore Nulook®’s comprehensive range of Systems, designed to meet every need. From Residential and Architectural to Commercial and Specialty Systems, find the perfect fit for your project.
Our Partners
