AntoineAsphalt.ca
Designated substances / OHSA s.30
Before tendering, the owner determines whether designated substances are present and includes the list in tender documents.
What the work includes
We don't demolish buildings. Site and hardscape demolition only.
- Concrete slab, sidewalk & pad removal
- Asphalt removal (patches, walkways, small lots)
- Interlock & slab tear-out
- Retaining wall removal
- Curb removal
- Fence removal
- Deck & shed removal
- Small structure removal
Not included (by others)
- Building demolition
- Designated substance survey & abatement
- Utility disconnections
Details that shape the build
Demolition starts with protection and planning.
We saw-cut clean lines, protect what stays, check for live services and load debris out as we go.
Removal list
For GCs and owners scoping demolition. Tick what needs to come out. Takes 1 minute.
No items selected yet.
How we calculated this
We count your selected items. The drawings and site walk set actual quantities.
Next: confirm saw cuts, protection and material destinations.
Removing a slab
1 Saw-cut
2 Lift & haul away
3 Clean subgrade
Before demolition
- Utility Marks showing where buried utility lines run, done before digging. complete (public + private)
- Designated substances list from the owner (OHSA s.30)
- Services to sheds/small structures disconnected by others
- Saw-cut lines & protection agreed
- Material destination confirmed (recycling / disposal)
How we work with you
- 1
Send drawings
- 2
Site walk
- 3
Priced scope with exclusions
- 4
Schedule and mobilize
- 5
Walkthrough and close-out
Rules to confirm
Utility locates
Obtain public locates and arrange private locates where needed before demolition near buried services.
Notice of Project
A A form filed with Ontario’s Ministry of Labour before certain construction projects start. is generally needed for qualifying cost, trench or retaining-structure work.
Show the full rule
You generally need a Notice of Project if any of these is true:
- Labour and materials will cost more than $50,000.
- A trench workers may enter is more than 300 m long.
- A trench workers may enter is more than 1.2 m deep and over 30 m long.
- The project involves an earth-retaining structure more than 3 m high.
Short summaries for planning. Check them against the current rules, your municipality’s conditions and your design professional.
Common questions
Do you demolish buildings?
No. We handle site and hardscape demolition: concrete, asphalt, interlock, retaining walls, curbs, fences, decks, sheds and small structures.
Can you remove part of a slab or parking area?
Yes. We saw-cut to clean lines so the remaining pavement stays intact for the next trade.
Do you need a designated substances list?
Yes. Under Ontario's OHSA, the owner must find out if designated substances (such as asbestos or lead) are present. The owner lists them in the tender documents. We'll ask for that list.
Can demolition and excavation be one package?
Yes. Removing old surfaces and digging to new The native soil at the bottom of the dig, before any base goes in. can be done in one trip to site.
Request a bid
Send the drawings and site details. We’ll confirm scope before pricing.