Underpinning in Toronto & GTA

Basement lowering with precision concrete cutting — less chaos, cleaner results.

Underpinning isn’t just “break the floor and dig.” It’s structural work that needs clean sequencing, controlled removal, and a finish that’s ready for the next trade.

DRM Demolition approach: we cut first, remove in a controlled way, and leave the site trade-ready — with an engineering mindset and zero chaos.

DRM_Demolition_Tone_of_Voice_v1…

When underpinning makes sense

• You want more basement headroom (basement lowering).
• The foundation needs reinforcement or you’re correcting movement/settlement.
• You’re adding loads (addition, beam pockets, structural changes) and need proper support.
• You need a clean, controlled opening to rebuild the slab and layout.

(If you already have an engineer and drawings — perfect. If not, we can help you coordinate the next step.)

What makes DRM different

1) Precision slab cutting instead of “random breaking”

Most damage during underpinning starts at the beginning: uncontrolled hammering, ragged edges, and extra vibration.

We use diamond saw cutting to create clean, straight cut lines before removal.
Result: less collateral cracking, cleaner edges for forming/rebar, and a more predictable rebuild.

2) Clean, straight edges for rebuild (forms, waterproofing, framing)

A straight cut line matters because it dictates everything after: forms, inspections, re-pour, and finishes.

We don’t just “open it up.” We set the job up so the next steps are faster and cleaner.

3) Flat / flush finishing for ugly concrete and over-pours

Old foundations are rarely perfect: bulges, sloppy pours, uneven transitions.

Because we have flat sawing / diamond finishing capability, we can shave high spots and bring concrete flush where needed — so waterproofing, framing, and new slab interfaces sit properly.

Our underpinning scope (typical)

Included (project-dependent):

• Site protection and dust/debris control (keep the rest of the house clean)
• Precision slab cutting and controlled concrete removal
• Debris staging + haul-out/disposal planning
• Underpinning work performed to engineered drawings (staged/sectioned sequencing)
• Coordination for inspections as required
• Final cleanup and a trade-ready handoff (photos on request)

Not included by default:

• Structural engineering design and permit submissions (can be client-provided or coordinated)
• Asbestos-related work (we do not handle or disturb asbestos)
  DRM_Demolition_Offer_Matrix_v1.0
• Basement finishing, plumbing/electrical, or full waterproofing packages unless specifically scoped

Pricing drivers (what changes cost)

• Target depth / amount of lowering
• Access (tight basements, long carries, bin placement)
• Concrete thickness and rebar conditions
• Water / drainage conditions and whether waterproofing is included
• Required protection level (occupied home vs empty)

What to send for a fast quote

Text or email:

• Address (city + nearest major intersection is OK to start)
• Goal: lowering for headroom or foundation reinforcement
• Any engineer drawings / reports (if you have them)
• 5–10 photos or a short video walkthrough of the basement
• Access notes (stairs, narrow doors, bin placement)