Self-Builders & Renovators

If you are undertaking a self-build or renovation and want a home that is comfortable, efficient and built to last, Greenfield Controls can provide the expertise to support you throughout the process. With specialist knowledge in Passivhaus and low-energy construction, we help ensure your project meets the highest standards of performance.

Airtightness Testing

Independent testing and clear reporting to show how your home is performing. We offer both interim testing during the build and final certification testing, helping you identify and resolve issues early so your project achieves its energy goals.

MVHR Installation & Commissioning

Mechanical ventilation with heat recovery is essential for a healthy, efficient home. We install and commission systems to ensure they deliver as designed. As NICEIC qualified engineers and one of the few Passivhaus-certified MVHR installers in the North of England, we bring both technical skill and reassurance.

Project Support

From initial design through to completion, we provide technical guidance and practical support. Our experience helps you navigate the complexities of airtightness and ventilation, with services ranging from consultancy and training to testing and certification.

Training for Subcontractors

Where subcontractors are involved, we deliver targeted training to improve understanding of airtightness principles and best practice, reducing errors on site and supporting a smoother build process.