Why We're Christchurch's Best Retro-fit Company

Upgrade your home's performance without sacrificing its character. Our retro-fit double glazing service allows you to improve insulation, reduce noise, and increase energy efficienc, all while retaining your original timber or aluminium frames.

At Empire Glass, we carefully install insulated double-glazed units into your existing joinery, enhancing thermal comfort, reducing condensation, and helping you maintain a consistent indoor temperature year-round. We offer a range of options, including Low-E coatings and Argon gas-filled units, to maximise performance and longevity.

Retro-fitting is an excellent choice for heritage and modern properties alike, preserving architectural charm while delivering the benefits of modern technology. Trust our experienced team to transform your living spaces with a solution that’s efficient, discreet, and cost-effective.

"I had the pleasure of working with the incredibly talented team at Glasi, and I must say, they've turned my house into a dream come true. I couldn't be happier with their work!"

Samantha Carsin

lovely customer

Delta Airlines

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Walt Disney

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MetLife

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SUITED for south island HOMES and beyond

Retrofit double glazing is commonly used throughout the South Island and beyond in both renovated and existing homes where insulation, condensation, and heat retention are ongoing issues. We regularly work on homes with older joinery, custom sizing, and renovation requirements that sit outside standard replacement systems.

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Testimonial

“Double glazed a full bedroom house with a range of retrofitted timber and aluminum frames. House looks awesome! Really competitive pricing and great communication from Josh and Jessie on the install. Would 100% recommend.”

Marty Tilbury

“From start to finish, Empire Glass (specifically Josh!) have been a pleasure work with and top notch communication.Just had the team complete double glazing on our house, what a fantastic experience! They were incredibly friendly and brought such great energy to the job. Flash (our dog) was especially thrilled with their visit and the cheerful “hello” pats on arrival haha!The crew worked efficiently throughout the day, clearly communicated their plan, and were wonderfully considerate of my wee son’s nap times. They even took away the old glass and left everything looking snazzier than ever.11/10 would absolutely recommend!.”

vic nic

“We made contact with Empire Glass to enquire about getting a quote for double glazing and within 1/2 a day, Josh had measured and quoted our job. Their quote was extremely competitive and we readily accepted. Josh kept us informed about progress of the job throughout and the glaziers that installed our new windows, Jessie & Seb, were absolutely terrific and a pleasure to have on site and in our home. We couldn't be happier with the quality of the product, the cost and the overall service from Josh and all the staff at Empire Glass. We would highly recommend anyone wanting work done in the "glass" area to use Empire Glass..you will not be disappointed :)”

Robyn Haughey

RETAIN EXISTING WINDOW FRAMES

One of the main advantages of retrofit double glazing is the ability to improve thermal performance without completely replacing existing windows. In many cases, existing timber or aluminium joinery can be modified to accept new insulated glass units, reducing disruption and maintaining the original appearance of the home. Plus, we design our own sash profiles for long wearing durability.

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