Land Grading in Mississauga — Yard, Driveway, Lot
We do land grading Mississauga homeowners and builders call us for when water sits in the wrong place, when a driveway needs a proper sub-base, or when the City asks for a lot grading certificate before a final occupancy sign-off. OCM Excavation & Construction runs grading crews across Port Credit, Clarkson, Erin Mills, Meadowvale and Cooksville every week, and we pull machines, laser levels and trucks onto your Mississauga lot to move dirt the right way the first time. Call 416-317-3090 for a free site visit.
Where We Grade in Mississauga
Mississauga is not one lot type — it is a stitched-together city with very different ground conditions, and a lot grading contractor Mississauga homeowners actually trust needs to know that going in. Port Credit and Lakeview sit on heavier clay close to the lake, with old sanitary services and shallow rear-yard slopes that push water back at the house. Clarkson and Lorne Park lots are often mature, treed, and pitched toward the rear ravine — meaning the Credit Valley Conservation (CVC) regulated area may sit on the back third of the property.
Erin Mills and Meadowvale have the post-1980 subdivision pattern: shallow swales between houses, side-yard drainage easements, and graded boulevards that the City will not let you alter. Cooksville and Mississauga Valleys mix older bungalows with newer infills, so we see hand-dug rear yards next to fresh excavator work on the same block. East of Dixie Road, near Etobicoke Creek, you are in Toronto and Region Conservation Authority (TRCA) territory rather than CVC — that matters when we apply for permits.
What Lot Grading Actually Means in Mississauga
The City of Mississauga requires a lot grading certificate, stamped by an Ontario Land Surveyor or P.Eng., on most new builds and major additions before final occupancy. That certificate says the finished elevations match the approved grading plan: rear-yard catch basin at the right elevation, side swales at minimum 2% slope, downspouts splashing onto graded surfaces — not into a neighbour’s foundation. Our job as a lot grading contractor Mississauga residents hire is to physically deliver the dirt work that lets the surveyor sign off.
For existing homes with no certificate on file, the grading work is usually drainage-driven: water in the basement, ice in the driveway every February, soft spots in the lawn, or a settling patio against the house. We grade the surface back to a 2% minimum slope away from the foundation for the first 1.8 m, then tie the rest of the yard into a swale, drywell, or storm connection that actually carries water off the property.
Our Mississauga Grading Process
Step one is a site walk — we shoot existing grades with a laser or rotating level, mark the high and low points, and check whether your lot drains to the street, to a rear easement, or to a regulated watercourse. Step two is utility locates: Ontario One Call, plus private locates for irrigation, low-voltage and gas BBQ lines, before any machine bites in.
Step three is the dirt move. For a typical Mississauga back yard, that means stripping topsoil, cutting and filling clay subgrade with a mini-excavator and skid steer, compacting in lifts, then re-spreading 100-150 mm of clean screened topsoil. For a driveway, we strip to subgrade, compact, and set granular base at the slope the City wants for the apron. For a full lot grade tied to a certificate, we work directly to the surveyor’s grading plan and stake the elevations before we finish.
Trees, Conservation, and the Stuff That Slows a Project Down
Two Mississauga rules catch homeowners off guard. First, the City’s Private Tree Protection By-law currently requires a permit for trees 15 cm DBH (diameter at 1.4 m above ground) and larger on private property — that is a lower threshold than Toronto’s 30 cm, so trees you would not need to touch with permits in Etobicoke can stop a grading job in Mississauga. Fees and triggers change, so confirm current numbers with the City before you cut.
Second, if your lot backs onto the Credit River, Sixteen Mile Creek tributaries, Cooksville Creek or Etobicoke Creek, you are likely inside a CVC or TRCA regulated area under Ontario Regulation 41/24. Grading inside that zone — even just moving fill — needs a Section 28 permit from the conservation authority. We factor that into the timeline up front so nothing stops mid-dig.
Why Mississauga Homeowners Call OCM
We own our equipment — mini-excavators, skid steers, dump trucks, laser levels, plate compactors — so we are not waiting on rentals when your job is ready. We work directly with surveyors and engineers on certificate jobs, and we coordinate with CVC or TRCA when the back of the lot is regulated. Crews are insured, and we clean up the site every night, not just at the end of the job. For Mississauga work, our jobs typically run 2 to 7 working days depending on yard size and access. Call 416-317-3090 and we will give you a real number after a site visit, not a phone quote.
Frequently Asked Questions
Do I need a lot grading certificate in Mississauga?
Yes for most new builds, major additions, and severances — the City requires a grading certificate stamped by an Ontario Land Surveyor or professional engineer before final occupancy. For existing homes doing drainage work without a permit, a certificate is usually not required, but the grade still has to drain water away from the foundation and not onto your neighbour.
What slope do you grade away from the house?
We target a minimum 2% slope for the first 1.8 m off the foundation, then tie into existing swales or a drywell beyond that. On flatter Mississauga lots in Cooksville or Port Credit where you cannot get 2% to the rear, we cheat fall sideways into a side-yard swale, or set a catch basin tied into the storm — whatever the lot will physically allow.
How much does land grading cost in Mississauga?
It depends on yard size, access, soil type, and whether trucks need to remove or import fill. A simple back-yard regrade with no fill haul-off can be a one-day job. A full lot grade with import fill, retaining elements and a surveyor sign-off is multiple days. We give written quotes after a site visit so you see the line items, not a guessed range.
Can you grade if I have trees in the back yard?
Often yes, but Mississauga’s tree by-law currently kicks in at 15 cm DBH on private property. If grading would damage roots inside the protected zone, we work around the tree, hand-dig where needed, or apply for a removal permit through the City — which can add weeks. We flag this in the quote so there are no surprises.
Do you handle CVC or TRCA permits?
If your Mississauga property is in a regulated area — Credit River tributaries on most of the city, Etobicoke Creek on the east side — Ontario Regulation 41/24 requires a Section 28 permit before grading. We coordinate with the conservation authority and your surveyor or engineer on the application. We do not stamp drawings, but we know the process and we know what gets approved.
Will grading fix my wet basement?
Often, yes — most wet basements we see in older Mississauga neighbourhoods like Cooksville, Mineola and Lakeview are surface-water problems, not foundation cracks. Re-grading the first 1.8 m around the house, extending downspouts past the graded zone, and adding a swale or drywell solves a lot of cases. If the issue is deeper, we will tell you and bring in waterproofing — not grade over the problem.
Get a Free Mississauga Grading Quote
If your yard pools after every storm, your driveway is sinking, or you have a builder asking for a lot grading certificate, call OCM Excavation & Construction at 416-317-3090. We cover all of Mississauga — see our full service areas and our broader Mississauga excavation page for related work, or request a free quote online.