Contractor profiles
- Ontario Porta Potty and Septic Pumping
- Ontario Rural Wastewater Centre
- Ontario Septic Pumping
- Ontario Wastewater Solutions Inc.
- OOWA
- Oro Septic Service Ltd.
- Ottawa Septic System Office
- Ottawa Valley Engineering
- Ottawa Valley Home Inspections
- Ottawa West Excavation
- Owen Sound Septic Services
- Owner/Operator
- P E Inglis Holdings Inc
- P. Gingerich Excavating Ltd
- P. Medley and Sons, Ltd
- Paquette Excavation & Renovation Inc – Nicolas Paquette
- Paradise Construction
- Parisien Excavation – Patrick Demers
- Paterson Group Inc
- Patterson Group
- Patterson Group – Henry Van de Glind
- Paul Greer & Son's Exc Ltd.
- Paul Saller Excavating Inc.
- Pearson Engineering Ltd.
- Pelican Excavating
- Pellicans Environmental
- Pentair Canada Inc./ Myers & Hydromatic
- Pentair Canada, Inc.
- Pepi Sewage Disposal System
- Perth & District Portable Toilet Rentals
- Perth & District Septic Service Limited
- Peterborough and the Kawarthas Home Builders
- Peters Paving Inc
- Peto MacCallum Ltd
- Phil's Septic Pumping Services
- Phippen Waste Management
- Pinchin Ltd.
- Pine Porta Potty
- Pioneer Septic Solutions
- Pioneer Septic Solutions Inc