Concrete Maintenance Holes

Our 1200 mm diameter precast concrete maintenance holes are a reliable, long-lasting solution for stormwater, sanitary sewer, and utility access. These maintenance hole products, manufactured by Omni Precast, are engineered for strength, easy installation, and consistent performance on any job site. Each maintenance hole is designed to meet Ontario Provincial Standards (OPSD 701.010).


Built for Strength & Durability

Each unit is made from high-quality precast concrete, delivering proven performance under heavy loads and harsh conditions. With options for a standard base slab or a monolithic (mono) base, you get a watertight, stable foundation thatโ€™s built to last. In terms of maintenance holes, durability is key.


Flexible Depth Options

Choose from 1-ft, 2-ft, or 3-ft risers to achieve the depth your project requires. The modular design makes installation faster and more adaptable, saving you both time and labor on site. This is particularly beneficial for maintenance hole projects requiring variable depths.


Key Benefits

  • Strong & Reliable โ€“ Engineered for long-term durability.
  • Watertight Performance โ€“ Precision joints and seals help prevent leaks.
  • Modular Design โ€“ Riser options let you customize for exact project depth.
  • Trusted Manufacturing โ€“ Produced by Omni Precast, a leader in concrete infrastructure products.
  • Faster Installation โ€“ Precast design reduces time and labor costs.

Common Applications

  • Stormwater and sanitary sewer systems
  • Utility and service access points
  • Inspection and maintenance chambers
  • Infrastructure upgrades and new builds

Why Choose Our Maintenance Holes?

Backed by Omni Precastโ€™s expertise and quality standards, our 1200 mm concrete maintenance holes provide the perfect balance of strength, adaptability, and ease of use. The superior design and production make these maintenance hole solutions the dependable choice for contractors, municipalities, and engineers who need infrastructure that performs.


Ready to Order?

Contact our team today for a quote or specification sheet on 1200 mm diameter maintenance holes. Weโ€™ll help you select the right base and riser configuration for your maintenance hole project.