Our process

Transform your home with confidence

From the first visit to the final install, we’re here to make things simple, transparent, and stress-free
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Step 1:

Free design & home assessment

Every project starts with a free in-home design consultation and assessment. We’ll come to you, take a look at your home, and get a clear understanding of the issues you're facing. Whether you’re after a modern refresh or need help with specific problems like warmth or condensation, we’ll offer tailored ideas, explain your options, and help you visualise the final result.

Step 2:

Clear pricing for your solution

Following our visit, we’ll provide a custom quote with everything clearly laid out—no hidden costs, no guesswork. We’ll walk you through the design options we discussed, explain the investment, and answer any questions. Once you're happy to proceed, we’ll confirm your installation date and schedule a final precision measure.

Step 3:

Built just for you

Your new windows, doors, or conservatory are custom-made at our specialised factory right here in Christchurch. Everything is built to measure, thoroughly quality-checked, and made to perform. Depending on your product and colour choices, installation typically takes place within 3–6 weeks.

Final step:

Feel the difference

Once installed, you’ll notice the difference immediately, your home will look refreshed, feel warmer, stay drier, and be quieter. And with our 5-year manufacturer’s warranty and 10-year warranty on joinery and glass, you’ll have peace of mind. Now all that’s left to do? Sit back, relax, and enjoy your warmer, healthier home.

Testimonials

Customer testimonials

“Fabulous in every way! We got quite a few quotes for new windows/doors and the products & quotes varied greatly. In the end we went with Ultimate Design because they offered a top quality product, they were very professional and presented us with a very appealing quote saving us thousands of $$$$.”
Shelley H.
“Thank you Fordy for your service and communication over the past 2 years. We had all our windows and sliding doors replaced with double glaze. I even got my dream black mirrored front door and smart lock. Hubby is still recovering from the cost of that door! Anyway, I will continue recommending your company!”
Deidre L.
“We were very impressed with the design advice for our new conservatory and found it easy to envisage how it would look. Construction was very quick, surprising our friends who commented "it's in already?" The completed project complements the existing layout and looks as if it was installed as part of the house rather than as an addition.”
Garry H.
"Love my new door. Replaced my rotting wooden door with a dodgy lock with a sleek, super low maintenance aluminium set. It was an easy process from quote to installation. Hannah nailed the colours and the builders were a pleasure to have on site. Highly recommend these guys for similar renovation work."
Lesley Isaac
"Ultimate Design & Renovation Ltd did an amazing job! Hannah was fantastic to deal with—professional, friendly, and always helpful. We absolutely love our new doors; the quality and craftsmanship are outstanding. Highly recommend their services!"
George Hammond
Get in touch

Designed for comfort, built for Kiwi living

For all your renovation and double glazing needs, trust Ultimate Design.
Contact usVisit our showroom
Get in touch

Designed for comfort, built for Kiwi living

For all your renovation and double glazing needs, trust Ultimate Design.
Contact usVisit our showroom
Contact us
Designed for comfort,
built for Kiwi living
For all your renovation and double glazing needs, trust Ultimate Design.
Contact us for a quote