Sewer, waterworks & drainage


Laroche Foundry manufactures a vast selection of quality components for sewer and waterworks systems as well as a variety of drainage and gutter products.

Since the 1960s, Laroche Foundry has been manufacturing a variety of products for municipal infrastructure, which represent an important share of the company’s production to this day. These durable and robust products can be found throughout Quebec.

Customized manhole covers

Laroche Foundry offers its expertise to municipalities and corporations wishing to create customized products. We can make manhole covers that include a name, a logo or any characteristic that represents your city, country, corporation, university, etc. This way your final product promotes your identity and is easy to identify in case of theft.

Designing service

Based on your drawings or just an idea, no matter how basic or elaborate, Laroche Foundry can design customized parts for municipal applications and manufacture them to your specifications. From the first steps of your project until its completion, our specialists will ensure that the final product is up to your expectations. They can advise, provide guidance and structure your project, or they can take charge of the whole design process. We can also use 3D modelling software to simulate the performance of the casting based on your specifications. This allows us to develop new products more quickly and speed up various steps of the manufacturing process such as the approval and sealing of plans, the production of molding pattern and the molding and pouring steps of the casting.


  • Frame
  • Riser
  • Valve boxe
  • Grate
  • Sump hatch
  • Cover
  • Service box
  • Gutter grate

Realisations Sewer, waterworks & drainage

Service box

Frame for bridge and viaduct

Manhole cover

Frame and grate for polyethylene

Circular frame

Bicycle proof grate

Gutter grate - Promenade urbaine (Montréal, Qc)

Sewer cover

Frame and grate for polyethylene


Customized manhole cover - Gatineau, Qc

Manhole cover

Sanitary cover

Customized manhole cover - Gatineau, Qc

Sump hatch
Conception site web / Absolu