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Preferred Precast Concrete Manufacturer in Southwestern Ontario

Underground Specialties manufactures a full line of OPSD utility structures as well as custom-made hydro vaults. We also wholesale a full line of utility pipe and fittings. Go through our list of products:

  • Transformer foundations

  • Pedestal bases

  • Electrical manholes

  • Communication manholes

  • Traffic manholes

  • Electrical handholes

  • Grade adjustment spacers

  • Frames and covers

  • Cable markers

  • Rigid and DBII PVC pipe and fittings

  • Poly pipe conduits

As one of the trusted precast concrete manufacturers in Southwestern Ontario region and surrounding areas, we’ve supplied our underground utility products to many commercial and municipal contractors. We always maintain strict quality control during production and combine it with prompt delivery service. Contact us today. Hydro vaults are approved by Ontario Power Generation, Essex Power Corporation, ELK Energy and ENWIN.

Need a Precast Concrete Structure?

Count on us to provide you with a complete line of custom concrete units.

Call Us


Underground Specialties

5340 Walker Rd, Oldcastle, ON, 

N0R 1L0

Phone: 519-737-1263

Fax: 519-737-1712



Monday – Friday: 7:00 AM – 5:00 PM
Saturday – Sunday: Closed

Other Addresses

Chatham Location:

25 Borrowman Street, Chatham, 

ON, N7M 5J5

Phone: 519-354-9243

Fax:  519-354-7064




Monday – Friday: 8:00 AM – 4:00 PM

Other Addresses

Cambridge Location:

1-131 Shearson Crescent, 

Cambridge, ON, N1T 1J3


Phone: 519-622-3185

Fax: 519-622-4666



Monday – Friday: 7:00 AM – 5:00 PM


Southwestern Ontario region and surrounding areas


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