30+ years in septic system construction
Over 1000 septic systems in the ground!

Septic System Construction

Serving Calgary and the Foothills area

Grayline Contracting is committed to providing an affordable, workable onsite sewage treatment solution which meets or exceeds your needs and is compliant with all Provincial and Municipal regulations. Some of our original septic fields have been in service for over 30 years. We will quote, install, service and warranty your septic system.   learn more...

Septic Field Options

At Grade Septic Fields

At Grade Septic Systems
Commonly used in areas which do not want the natural trees removed to accommodate a conventional buried septic field.

Pressure Distribution Fields

Pressure Distribution Fields
This type of septic field is more efficient in processing the effluent due to the consistent effluent distribution.

Treatment Mound Fields

Raised Treatment Mound Fields
This system can accommodate a higher daily effluent flow rate into a surface area that is smaller than a conventional field

Learn more about Wastewater Treatment Systems...

Advanced Environmental Protection

ProFloProFlo Wastewater Treatment Plants are the simplest and the most effective advanced treatment system sold in Alberta. They are the most effective system to reduce sewage contamination and protect the environment – specifically the endangered water aquifers.  learn more...


Bruce has been installing septic systems for our rural client’s homes for several years now. He is our “go to guy” who actually installs all the pieces and is in the trenches on every job.

Bruce takes the time with our staff and clients to educate them about the septic process and their own systems. He is a specialist  more...

Chad Blash, P.Eng.
Tamani Communities

View all testimonials...


Certified by Alberta Municipal Affairs, Plumbing Division

Former Director of AOWMA, Alberta Onsite Wastewater Management Association

Click for the BBB Business Review of this Septic Tanks & Systems Contractors & Dealers in Okotoks AB

Company Profile...