Transforming the Way You Live
Our conversions and extensions service focuses on creating spaces that feel natural, balanced and thoughtfully considered.
By applying Passivhaus-led thinking and a fabric-first approach, we improve energy performance while respecting the character and structure of your existing home.
Seamless Integration
Every extension or conversion is designed to sit naturally within your home, enhancing flow, function and comfort.
Improved Performance
We upgrade insulation, airtightness and ventilation where possible to improve energy efficiency and everyday living conditions.
Careful Delivery
Our structured, well-managed approach keeps disruption to a minimum and ensures the process stays clear and controlled.
Our Conversion & Extension Services
We offer a complete service for adapting and extending homes, from early planning through to completion.
Design & Planning
Working with you and your architect to develop designs that maximise space, light and performance.
Structural Alterations
Carrying out complex structural work with precision to safely and effectively transform your home.
Fabric Improvements
Enhancing insulation, airtightness and thermal detailing to improve comfort and reduce heat loss.
Project Management
Coordinating all stages of the build with clear communication and careful oversight.
Testing & Quality Assurance
Checking performance and workmanship to ensure the finished space meets agreed standards.
From the Founder
“A successful extension or conversion should feel like it was always meant to be there. When performance and design are considered together, the result is a home that works better as a whole.”
Joshua Day
Founder & Director
“From our first conversation to the final handover, the whole experience felt calm and well managed. Everything was clearly explained and we always felt informed. The house is incredibly comfortable and performs better than we imagined. We wouldn’t hesitate to recommend Myzsa.”
Sarah Collins
New Build Construction
“We were nervous about extending our home, but Myzsa guided us through every step with clarity and care. The workmanship is exceptional and the finished space feels seamless, warm and thoughtfully designed. It’s completely transformed how we live in our home.”
James Thornton
Conversion & Extension
“The retrofit has made a huge difference to our day-to-day comfort. The house is warmer, quieter and far more efficient. The team explained the process clearly and delivered exactly what they promised. It’s one of the best decisions we’ve made.”
Emma Richardson
Retrofit (EnerPHit)
“From start to finish, the process was professional and transparent. The attention to detail and focus on performance really stood out. Our home now feels solid, comfortable and future-proofed. We felt confident in their expertise throughout.”
Mark Evans
Building Fabric & Renewables Upgrades
“Achieving Passivhaus certification felt daunting at first, but Myzsa made the process clear and manageable. Their quality control and testing gave us total confidence, and the final result speaks for itself. The performance of the building is outstanding.”
Laura Bennett
Passivhaus Certification & Quality Control
“What impressed us most was how listened to we felt. Every decision was explained, and the result is a home that feels calm, efficient and beautifully built. The experience was smooth from beginning to end, and the quality is evident in every detail.”
David Walker
New Build Construction
Reimagine Your Home
If you’re considering extending or adapting your home, we’ll help you explore the best way forward. With clear guidance and a focus on comfort and performance, we make the process straightforward and rewarding.
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