We are Harniss, the full package for mechanical and electrical building services.  Operating nationally with our consultants, engineers, project managers, sustainability and energy assessors and more.

We are more than the sum of our parts.  Harniss people are a collection of passionate, visionary and experts in Building Services. Discover who we are and what drives us to shape the future of Harniss.

Being a responsible business and undertaking our activities to the highest standards is really important to us. We always aim to maintain the highest levels of conduct and integrity and we expect the same commitment from our people and our supply chain too.

Sustainability is at the forefront of everything we do at Harniss. We are committed to providing people with the knowledge, skills and enthusiasm to make a difference.

Harniss Community is all about what we can do to make life better for others.