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Passivhaus Certification & Quality Control

We provide expert oversight, testing and guidance to ensure your project meets the rigorous performance standards of Passivhaus certification. Our role is to protect build quality, verify performance and give you confidence at every stage.
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Certainty Through Verification

Achieving Passivhaus certification requires precision, consistency and attention to detail.
We support projects from design through to completion, ensuring performance targets are met through structured review, on-site quality control and independent verification.
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Why Certify With Myzsa

Certification is about more than compliance. It’s about confidence that your building performs exactly as intended.
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Technical Expertise

We understand the detailed requirements of Passivhaus and apply them correctly at every stage.

Independent Oversight

Regular site checks and testing ensure workmanship aligns with design intent and certification criteria.

Measured Performance

Every decision is backed by testing, documentation and verified results.
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Our Certification Services

We offer comprehensive support to guide projects smoothly through the Passivhaus certification process.
Design Review
Assessing drawings, details and specifications to ensure compliance with Passivhaus standards.
Thermal & Airtightness Strategy
Reviewing insulation, airtightness and thermal bridge detailing to meet performance requirements.
On-Site Quality Control
Monitoring construction quality and detailing to prevent performance gaps.
Airtightness Testing
Carrying out blower door tests to confirm airtightness targets are achieved.
Certification Support
Managing documentation and submissions required for official Passivhaus certification.
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From the Founder

“Certification gives certainty. When performance is measured and verified, you know your building will deliver the comfort and efficiency it was designed for.”

Joshua Day
Founder & Director
Homes People Love Living In
Hear from homeowners who’ve experienced the comfort, clarity and confidence that come with building better.
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“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
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Build With Confidence

If you’re aiming for certified performance and uncompromising quality, we’ll help guide your project with expertise, precision and clarity from start to finish.
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Ready to Take the Next Step?
Tell us about your project and we’ll help you explore the best path forward, without pressure or complexity.
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