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44 Years
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Expert Septic System Solutions in Okotoks, AB
Grayline Contracting takes immense pride in delivering exceptional septic system solutions rooted in decades of hands-on experience. Founded in 1982 and based in Okotoks, Alberta, we are a family-owned business led by Matt Kielstra, a certified septic installer with over 15 years of specialized expertise. Our team combines 54+ years of collective experience across 2000+ completed projects, ensuring every client receives tailored, code-compliant systems designed for longevity. We offer a 5-year warranty on installations, reflecting our confidence in quality craftsmanship and commitment to environmental stewardship.

Our process prioritizes transparency, from free written quotes to meticulous site assessments that accommodate landscaping preferences. By partnering with certified designers and leveraging advanced technologies like ProFlo treatment plants, we deliver cost-effective, high-performance systems that protect property values and public health. Our reputation for punctuality, budget adherence, and post-installation support has earned us enduring trust in southern Alberta communities.
Services
Septic Installation Septic Repair Septic Design Septic Maintenance Septic Assessment
Details
  • Year established: 1982
Highlights and features
  • We offer 54+ years of combined septic system expertise
  • Our 5-year warranty exceeds industry standards
  • Certified designers ensure code-compliant, tailored systems
  • We protect environmental health through proper installation
  • 2000+ successful projects demonstrate proven reliability
Associations and certifications
  • ProFlo
  • Canadian Technical Advisor for ProFlo
What people say
Seamless installation Top septic contractors Quick and professional Excellent communication Property left in better condition
Services
Septic System Installation
Grayline Contracting delivers complete septic system installations from design to permitting. Our certified team installs tanks, fields, and advanced treatment plants while handling all regulatory requirements. We prioritize minimal landscaping disruption and precise placement aligned with property needs. Systems include conventional tanks, ProFlo advanced treatment plants, and pressure-distributed fields.
Septic Repair & Replacement
We diagnose and resolve septic system failures including pump malfunctions, tank deterioration, and field saturation. Repairs address clogs, leaks, and component wear while replacements use modern materials for longevity. Emergency services restore functionality within hours, minimizing property damage and health risks.
Certified Septic Design
Our certified designers create customized septic plans considering soil composition, property layout, and household needs. We conduct soil analysis and flow rate calculations to determine optimal system specifications. Designs meet municipal codes and integrate seamlessly with existing structures while protecting environmental health.
Septic Maintenance
Regular maintenance extends system lifespan through tank pumping, filter cleaning, and component inspections. We recommend biennial pumping for standard tanks and annual filter maintenance for advanced systems. Proper care prevents costly failures and ensures regulatory compliance.
Septic Assessment
We conduct comprehensive assessments to identify system condition, capacity, and compliance. Evaluations include tank inspections, field testing, and soil analysis. Results determine necessary repairs, upgrades, or replacement timelines to maintain operational efficiency.
People
Matt Kielstra
Owner & Certified Septic Installer
With 15+ years of septic system expertise and 20+ years in construction equipment operation, Matt leads installations and designs. He ensures every project meets strict quality standards while maintaining environmental responsibility.
Jessica Kielstra
Co-Owner
Jessica manages business operations and client relations, ensuring seamless service delivery. Her oversight contributes to Grayline's reputation for reliability and customer satisfaction.
Questions
What septic services do you offer?
We provide installation, repair, replacement, design, and maintenance for residential and commercial septic systems.
How long does a septic tank replacement take?
Most replacements complete within one day with minimal disruption to your property.
Do you offer warranties on installations?
Yes, we provide a 5-year warranty on all septic system installations.
How often should septic tanks be pumped?
Every 2 years for standard tanks; annually for systems with filters or high usage.
Can you repair existing septic systems?
Yes, we diagnose and repair pumps, filters, compressors, and field failures.
Do you service commercial properties?
Yes, including large-scale installations like Camp Cadicasu's 1600-foot septic field.
Reviews (6)
Nick Hanus
Aug 22, 2021 Report
Earlier this year, I found out that my septic tank could not be repaired but needed replacing. I contacted Grayline Contracting and arranged for Matt to come out and have a look. He arrived promptly on the agreed day, informed me of the procedure and had an estimate for me in a couple of days. Matt managed to squeeze the job into a free day, 2-4 weeks ahead of schedule. I was able to watch the change out from start to finish and admired the professionalism and expertise displayed by Matt and Tom. Matt answered any questions or concerns I had concisely and left the excavated site ready for topsoil
Daryl Hovius
Aug 13, 2021 Report
We contacted Grayline after we were having issues with our septic system. They were able to fit us in and we couldn't be happier with the results. Other contractors were wanting trees to be cut down in order to get the tank in, but not Grayline. They worked with the limitations of the property and were able to get the new tank installed. So glad we went with them as they were able to ensure that the sewer lines were properly installed (the old ones had cracks) and they even graded the area for proper drainage. Go with Grayline, you will not be disappointed!
Brody Scott
Jul 20, 2021 Report
Huge shoutout to these guys! I couldnt have asked for a better company to come out to replace my septic tank. They do absolutely incredible work, they are extremely knowledgeable and know what they are doing inside and out throughout the entire process. They went over and above and I am beyond words for the quality workmanship and final result. Cant thank you enough. If youre looking for a reputable, reliable and professional company to do work that will last for years call these guys!
Karla Helm
May 19, 2021 Report
Our alarm went off on our septic system and we immediately called Grayline. They were able to do some troubleshooting over the phone and determined that an emergency repair wasn't required so we set up a time for a look the next day. They were on time and were able to determine the problem, all the while offering different solutions. Great service!
Jonathan Popowich
Apr 30, 2021 Report
Matt & the crew at Grayline are awesome. They are responsive, professional, fair, and excel in the business. I have seen dozens of Septic contractors and Grayline consistently surpasses my expectations. We have used them on our personal systems as well as many referrals to clients & neighbours. If you are looking at septic contractors it's important to get different opinions but you won't need to look any further than Grayline.
Peter Snethlage
Jun 06, 2020 Report
Hi Matt
Just wanted to say a big thank you for the great job replacing our septic tank!
Weve been on our acreage for 24 years and dealt with a lot of contractors but have never been happier with the service we received from you! Very competitive price and quick installation...started at 7:30 and we were flushing toilets at 12:00. Really appreciate the effort to minimize lawn damage as well! Please feel free to use us as a reference anytime
Cheers
Peter Snethlage
Peter Snethlage