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Demolition Services Cost Estimate

Cost Breakdown

Item Description Estimated Cost / Unit Notes
Mobilization & site setup Equipment delivery, setup, safety barricades, traffic control allowances for urban/suburban zones Lump-sum / % of job In tight fire-zone/urban access areas this can be significant.
Permit & inspection fees Local city/county demolition permits, hazardous material inspection (asbestos/lead), utility disconnections $100-$500 typical for residential, higher for complex sites (Angi) Must be included as part of your compliance scope.
Demolition of structure Mechanical demolition of building materials (wood/metal/concrete) Residential typical: ~$4-$17 per sq ft in CA (Angi).
Example: LA area $10,900–$13,700 for <4,000 sq ft (no basement)		 Adjust upward for multi-story, basements, fire damage, reinforced concrete.
Concrete slab/foundation removal Sawing, breaking, hauling of 4? slab upwards, or full removal of grade beams & foundation $4.80-$7.16 per sq ft for 4? slab in CA For heavy reinforced or fire-impacted foundations expect higher.
Hazardous material remediation Asbestos siding/insulation, lead paint, underground tanks Premium cost – can be 2-3× typical demolition cost Important for fire-affected zones or older buildings.
Debris removal & disposal Hauling material, landfill fees, recycling where possible Included in per-sq ft or budget separately Disposal costs in Southern CA may be elevated.
Site cleanup and grading Final cleanup, backfill, compact, rough grade site for next phase Lump-sum / per-square foot Especially relevant where you’ll coordinate with piles/shoring and future foundation work.
Contingency / unforeseen conditions Unknown underground utilities, rock/soil issues, hidden fire damage ~10-15% of base cost Particularly relevant in fire-restoration and infrastructure-adjacent sites.

Sample Estimate for Typical Residential Demolition

Here’s a mock-up for a single-family home in the greater Los Angeles/Altadena area:

  • Building size: 3,000 sq ft, no basement.
  • Standard wood frame, slab foundation.
  • Site: accessible suburban lot, moderate fire impact (some char, some structural damage).
  • Assumes permit and standard disposal, no major hazardous material remediation.

Estimate

  • Demolition @ ~$12 per sq ft = 3,000 × $12 = $36,000
  • Mobilization & setup = $4,000
  • Permit & inspection = $1,000
  • Debris removal & disposal = $5,000
  • Site cleanup & grading = $3,000
  • Contingency (10%) = $4,900
  • Total Estimated Cost: ~ $53,900

Adjustments

  • If basement or reinforced concrete foundation: +15–30%
  • If hazardous materials found: add remediation line item
  • If tight access (urban, multi-story, part of fire zone): add premium
  • If client also adding piles/shoring/foundation immediately: coordinate to save cost by aligning workflows

Key Cost Drivers & Considerations

  • Size & complexity of structure: Larger square footage, multiple stories, attached garages, basements drive up cost.
  • Foundation type: Slab on grade is least expensive; full basement or deep foundation removal adds cost.
  • Access & site conditions: Easy suburb lot vs. hillside, fire-affected terrain, narrow lanes will increase mobilization/time.
  • Hazardous materials: Older buildings in SoCal often contain asbestos, lead paint, underground tanks — these must be handled per regulation and increase cost.
  • Material type & reinforcement: Heavy concrete, steel, masonry cost more than wood construction.
  • Disposal & recycling costs: Landfill tipping fees, hauling distance, recycling opportunities impact cost.
  • Permit & local regulations: Municipalities in Southern California have strict demo/shoring/erosion-control requirements which your company must manage.
  • Coordination with subsequent work: Since you deal in piles drilling, shoring, foundation demolition, aligning demolition with follow-on scope (e.g., grade beams, caissons) can create efficiencies and savings for the client.

Scope Exclusions (unless specified)

  • Structural engineering design or geotechnical investigations (unless separately contracted)
  • Permitting for rebuilding or new foundations (unless included)
  • Utility reconnection, landscaping or final finished grading beyond rough grade
  • Environmental remediation beyond standard demolition (e.g., chemical contamination)
  • Salvage/deconstruction of reusable materials, unless specifically stated
  • Unforeseen underground obstructions (e.g., old foundations, buried tanks) – will quote separately.

Terms & Payment Schedule

  • Deposit: 30% due upon contract execution to mobilize equipment and secure permits
  • Progress Payment: 50% due upon major demolition completion (structure removed, debris removed)
  • Final Payment: 20% due upon site cleanup, grading complete and client acceptance
  • Change Orders: Any additional work (e.g., hazardous remediation, additional foundation removal) will be submitted in written change order for client approval prior to execution
  • Validity: This estimate is valid for 30 days from date above and subject to change if site conditions vary materially or if permit/landfill costs change.

Why Choose Zonebolt INC.

  • Established expertise in fire-restoration drilling and shoring in Altadena/Pasadena and surrounding Southern California region
  • Turn-key capability: demolition, foundation & piles drilling, shoring and concrete services—all coordinated in-house for streamlined workflow
  • Understanding of fire-affected sites: we know the extra care required for hazardous debris, erosion-control, and local appetite for fast but safe turnaround
  • Proven track record for both residential and commercial/infrastructure clients.

Next Steps

  • Site visit & walk-through to confirm scope, document conditions, take photos.
  • Geotechnical/hazardous-material assessment (if required) and confirm permit requirements with municipality.
  • Finalize contract scope and payment terms.
  • Mobilize equipment, submit permit applications, schedule demolition.
  • Demolition, debris removal, grading, and hand-over for next phase (foundation/piles).
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