Energy Efficient Window Upgrades

 Wellington

At NZ Proud, home renovations and alterations are at the core of what we do. We deliver energy efficient window upgrades across Wellington, the Hutt Valley, Porirua, and the Kāpiti Coast, helping homeowners create warmer, drier, and more comfortable homes.

Every home is different. Over the years, we’ve worked on hundreds of properties across the region, from character villas and older homes with original joinery to modern builds requiring performance upgrades.

Specialists in Window Upgrades for Existing Homes

Upgrading windows is very different from installing them in a new build. It requires careful planning, experience working with existing structures, and an understanding of how to improve performance without compromising the home.

Our team specialises in:

• Upgrading single-glazed windows to double glazing
• Replacing outdated joinery with modern, thermally efficient systems
• Integrating new windows into existing walls and structures
• Improving insulation, reducing drafts, and minimising heat loss
• Identifying challenges early and planning practical solutions

Because we focus on renovation work, we understand how to upgrade windows in a way that improves comfort, efficiency, and long-term performance while maintaining the character of your home.

What Our Window Upgrades Include

We deliver a range of energy efficient window upgrades across Wellington and Kāpiti, including:

• Retrofit double glazing upgrades
• Full window replacement for existing homes
• Thermal aluminium joinery upgrades
• uPVC and timber window options
• Window upgrades as part of extensions and alterations
• Improving thermal performance and insulation
• Reducing drafts and condensation
• Enhancing weathertightness and durability

Built for Wellington & Kāpiti Homes

We understand the unique conditions of homes in the Wellington region, from wind exposure and coastal environments to older housing stock and varying construction methods.

NZ Proud is trusted across Wellington, the Hutt Valley, Porirua, and Kāpiti for delivering window upgrades that improve comfort, energy efficiency, and overall home performance designed to integrate seamlessly with your existing home.

A Proven Process for Double Glazing & Energy Efficient Window Upgrades in Wellington & Kāpiti.

NZ Proud specialises in upgrading homes across Wellington and the Kāpiti Coast, with a structured, end-to-end process that ensures your project is well planned, clearly costed, and built to a high standard.

Our approach focuses on identifying challenges early and planning practical solutions before construction begins. Every project begins with a consultation with our Managing Director, where we take the time to understand your goals, assess your site, and provide clear, practical advice on what’s achievable.

Here's what to expect:

• Initial consultation and feasibility advice
  Understanding your site, budget, and goals from the outset
• Design coordination
  Connecting you with trusted Wellington & Kāpiti architectural designers, or collaborating with your existing plans
• Concept planning and development
  Shaping a design that works for your site, needs, and long-term use
• Two-stage pricing
  • Preliminary estimate during design to guide your budget
  • Fixed pricing based on consent-ready plans
• Council consent coordination
  Managing the consent process and ensuring compliance with local requirements
• Construction and site management
  Delivering your additional dwelling with quality craftsmanship and attention to detail
• Full project management
  Keeping your project on track, on budget, and clearly communicated throughout
• Handover and compliance
  Ensuring all documentation and sign-offs are completed
• Ongoing maintenance and aftercare
  Supporting you beyond completion

If you'd like to have an initial conversation with our experienced renovation team, get in touch here.

At NZ Proud, we deliver high-quality house extensions across the Wellington and Kāpiti Coast, with a focus on clarity, craftsmanship, and a smooth experience from start to finish.

‍

Here’s what sets us apart:

• Specialists in Home Extensions & Renovations
  We focus on extensions and renovations, giving you a team that understands the complexities of adding to and improving existing homes.

• Locally Owned Wellington & Kāpiti Builders
  Based in the region, we understand local council requirements, site conditions, and the unique needs of homes across Wellington and the Kāpiti Coast.

• Proven Track Record Across Hundreds of Projects
  From simple extensions to complex renovations, we’ve successfully delivered projects of all sizes.

• Experienced with Complex Builds
  We confidently manage structural changes, tight sites, and challenging designs solving problems before they become delays.

• Licensed & Qualified Building Team
  Our licensed builders and experienced project managers ensure your extension is built to the highest standards.

• End-to-End Project Management
  We handle everything from planning through to completion, making the process straightforward and stress-free.

• Real-Time Project & Budget Tracking
  Our client portal gives you full visibility over progress, timelines, and budget so you’re always in the loop.

• Trusted Network of Local Subcontractors
  We work with proven Wellington and Kāpiti trades to maintain quality and consistency across every project.

• Practical, Budget-Conscious Solutions
  We design and build extensions that balance ambition with smart, cost-effective decisions.

If you'd like to have an inital conversation with our experienced renovation team, get in touch here.