Technical Gurus - Greenwood

Technical Gurus

Ventilation genius - we are more than a product manufacturer. We offer a broad spectrum of services to our customers; be it specifiers, installers on-site with screwdriver in hand, or end users who are asking us about replacing filters...

When it comes to domestic ventilation we have over 140 years experience so there isnt much we don't know about indoor air quality, mould and condensation and, overall, providing effective ventilation to homes.

Our longevity in this competitive marketplace means we have been responsible for many of the innovations that make today’s products so valuable to our customers. Today, yes we still provide products, but we also do so much more...

We can offer help with:

  • Building Regulation compliance ADF:Means of Ventilation
  • Guaranteed Installed Performance – specifying the right solution for the application!
  • CAD ventilation system design and full prescriptive quotations
  • Full ventilation system commissioning post installation
  • Solutions for persistent problem properties – mould and condensation
  • BPEC accredited training for installers working with MVHR and Central Extract
  • General advice - in person, over the phone or via email
  • Acoustic planning guidance and other noise issues
  • Technical CPDs covering some of the current topical issues e.g. PassiveHaus

Ask us. Contact us. Give us a challenge...

Technical Department:    
+44 (0)1903 777135

Main switchboard:        
+44 (0)1903 771021

Main Fax:                             
+44 (0)1903 782398

Email:                            or


Zehnder Group