Common questions.

We offer concrete pouring (driveways, patios, slabs, flatwork), septic system design and installation, excavation and site work, demolition, foundation construction and repair, waterproofing, hydronic in-floor heating, concrete levelling, stamped concrete, parging, retaining walls, pool decks, and masonry.

Yes. Poseidon Concrete is BCIN licensed for septic system design and installation, WSIB certified for workplace safety, and carries $5M+ in comprehensive liability insurance.

We are based in Woodbridge, Ontario and serve the entire GTA plus communities throughout Southern Ontario including Barrie, Kitchener-Waterloo, Peterborough, Hamilton, Niagara Falls, Belleville, Guelph, and more.

Yes. We visit your site, assess the scope of work, and provide a detailed, transparent quote. No obligation, no pressure.

Since 2007. Nearly two decades of concrete, excavation, and construction experience across the GTA.

Yes. We handle both residential and commercial projects of all sizes.

Concrete driveways typically run $20-$30 per square foot installed, depending on size, base conditions, finish type, and access. Stamped or decorative finishes add $5-$10/sqft. Contact us for a free quote specific to your project.

Concrete reaches initial set within 24-48 hours (you can walk on it). It reaches 70% strength at 7 days and full strength at 28 days. We recommend staying off driveways with vehicles for at least 7 days.

We pour from April through November. Concrete cannot be poured when temperatures drop below 5°C as it affects curing. We use air-entrained concrete specifically designed for Ontario's freeze-thaw cycles.

A full septic system installation typically ranges from $15,000 to $35,000+ depending on system type, soil conditions, and property requirements. Replacement of existing systems is often $12,000-$25,000.

Yes. All new installations, replacements, and major repairs require a permit under Ontario Building Code Part 8. We handle all permit applications and inspections.

A well-maintained conventional septic system typically lasts 20-30 years. Tank pumping every 3-5 years is recommended to maximize lifespan.