Excavation and Septic Tank Installation Services

Get in touch with the construction experts for professional excavation, trucking, agricultural and septic tank installation services.

Call us at 226-909-0630

Reliable Excavation Services in Owen Sound and Surrounding Areas

Plan your new construction project with the help of experts at Underwood Construction Ltd. We provide professional excavation services in Owen Sound, within a radius of 30 km including Wiarton, Southampton and Sauble Beach. Established in 2003, we are a family business specializing in construction services for residential, commercial, municipal and agricultural clients. From site preparation and foundation excavation to land clearing and tree removal, we will take care of everything. When you work with our qualified team, you can expect quality and efficiency.

Our excavation services also include finish grading, trenching, laneway preparation, pond and shore well construction, demolition and more. To provide you with reliable services, our experienced operators work with well-maintained, quality equipment. If you’re looking for professional excavators for your construction project, give us a call. We are fully insured.

Quality Septic Tank Installation Services in Wiarton and Surrounding Areas

When you’re building a new home or an office, having a septic tank is very important. Underwood Construction Ltd specializes in septic tank installation in Wiarton and surrounding areas. With 30 years of experience in the industry, we provide environmentally friendly and innovative wastewater solutions for residential and commercial properties. We not only install new systems but also provide both excavation and septic tank repair services for existing beds.

We are proud members of the Ontario Onsite Wastewater Association (OOWA). Our team consists of 3 licensed septic system designers and installers. We work with some of the leading manufacturers in the market such as Waterloo Biofilter and Ecoflo. Contact us to learn more about our services.


  • Septic systems & design

  • Laneways & parking lots

  • Excavation

  • Haulage

  • Topsoil

  • Bulldozing

  • Stone placement

  • Retaining walls

  • Ponds

  • Site preparation

  • Small demolition

  • Sand and gravel

  • Snow removal

  • Landscape design

  • Landscape construction

  • Custom agri-services spraying & combining

  • Agricultural ditches, ponds & grain hauling


  • Residential

  • Commercial

  • Agricultural

  • Excavation

  • Septic tank installation

Getting there

  • Just North of Jackson off Hwy 21



Underwood Construction Ltd

162153 A Line

Owen Sound, ON N4K 5N7

Serving: 30 km radius of Owen Sound including Wiarton, Southampton and Sauble Beach


Monday 07:00 AM - 07:00 PM

Tuesday 07:00 AM - 07:00 PM

Wednesday 07:00 AM - 07:00 PM

Thursday 07:00 AM - 07:00 PM

Friday 07:00 AM - 07:00 PM

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