Emergency Excavation in Richmond Hill, ON | OCM Excavation

Call OCM at 416-317-3090 right now if sewage is backing up into your Richmond Hill basement, a sinkhole has opened in your yard, or your front lawn is flooding from a broken water line. We are based locally, our crew of three mobilizes with a Yanmar SV40 mini-excavator, and we are on most Richmond Hill addresses within one to two hours of dispatch. This page tells you what we cover, what it costs, and what you should do in the next ten minutes.

What Counts as an Excavation Emergency in Richmond Hill

Richmond Hill is a strange mix from an underground-infrastructure perspective. Rapid 1990s-to-now development sits on top of post-war neighbourhoods that still have original sewer laterals and mature trees with aggressive root systems. The result: a steady stream of root-intrusion failures, joint separations, and sudden collapses on lines that looked fine last spring. The emergency calls we handle most often in Richmond Hill are:

• Sewer line collapse with backup through basement drains, almost always at a root-strangled clay joint.
• Water main break on the lateral between the municipal shutoff and the house, often at a frost-heaved fitting under the front lawn.
• Sinkhole formation in the yard or driveway — in Richmond Hill, usually a broken old sewer pipe washing sandy fill away beneath grade.
• Foundation crack with active water intrusion during heavy rain, often paired with a failed weeping tile that needs a French drain and waterproofing remediation.
• Failed weeping tile on older Richmond Hill homes where the original 1960s clay tile has crushed or silted up.

How Fast We Actually Get There

For Richmond Hill calls placed before 2 PM on a weekday, we get a crew on-site the same day for about 90% of dispatches. After-hours and overnight calls are slotted for first thing the next morning unless property is being actively damaged, in which case we mobilize at premium after-hours rates. We work weekends for true emergencies. Yonge Street and the 404 give us fast access to nearly every Richmond Hill neighbourhood, including Oak Ridges, Mill Pond, and Bayview Hill.

Emergency Pricing in Richmond Hill

Emergency work does not follow our standard scheduled-job pricing. Permits need expediting, crews are on overtime, and materials get sourced on the fly. Expect an emergency response fee of $1,500 to $5,000, plus $200 to $350 per hour of crew time, plus materials and permits. A typical Richmond Hill sewer lateral replacement runs $9,000 to $24,000 depending on lot depth, distance to the city main, and whether we have to break and restore interlock, concrete, or asphalt. You will receive an itemized invoice formatted for an insurance claim.

What You Need To Do Before We Arrive

• Call OCM at 416-317-3090 and stay on the line so we can guide you through the next five minutes.
• If it is a water main break, shut your water off at the main valve inside the basement.
• If it is a sinkhole or suspected sewer collapse, call Richmond Hill’s contact centre at 905-771-8800 so the municipality can dispatch their crew for the street-side portion of the lateral.
• Take photos and short videos of the damage. Your insurer will want documentation from the earliest possible moment.
• Get anything valuable off the basement floor and stay out of standing sewage water.

The Insurance Picture

Most Richmond Hill homeowner policies only cover sewer backup if you carry the specific endorsement, and limits are often lower than the actual cleanup cost. The pipe-and-dig portion — the cracked sewer line, the lateral break, the sinkhole repair — is generally not covered as a structural item. Subsidence is a rare add-on. We do not bill insurance directly, but we hand over a detailed itemized invoice with photos, dimensions, and material specs so you can submit a clean claim.

FAQ — Emergency Excavation in Richmond Hill

How quickly can you reach Oak Ridges or Bayview Hill?

One to two hours during business hours for any Richmond Hill neighbourhood. The 404 and Yonge corridors keep dispatch times tight even during rush hour. After-hours calls are usually scheduled for the following morning unless damage is actively expanding.

Do I call the city before I call you?

Call us first at 416-317-3090 so we can mobilize, then call Richmond Hill at 905-771-8800 for sinkholes and suspected sewer collapses. The municipality only takes the report from the property owner, and they will not dispatch on a contractor’s call.

Will my homeowner policy pay for the dig?

Usually not the structural repair itself. Finished-basement water damage is often covered if you carry the sewer-backup rider. We provide claim-ready documentation so your broker has everything they need to evaluate the loss.

Can you excavate in deep winter?

Yes. Frost in Richmond Hill runs around four feet. We use frost rippers and heated ground enclosures to break and protect the dig. Winter work costs more because production slows, but emergencies do not pause for the season.

What if the break is on the municipality’s side?

If the failure is past the property line on the city side, Richmond Hill repairs it. We help you locate and document the failure point so the right party pays. Anything from the property line into your house is your responsibility.

Call OCM Now

If your basement is filling, the yard is sinking, or water is pouring out somewhere it should not be, call 416-317-3090 now or request a callback through our free quote page. See our full service areas, sibling emergency pages in Vaughan and Markham, our French drain page for Richmond Hill, and our Richmond Hill excavation contractor page for non-emergency work.

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