In modern commercial construction, flooring installations sit on the critical path. Delays in slab profiling, moisture remediation, self-leveling underlayments, or resinous system application ripple through the entire project schedule, stalling downstream finishing trades. Executing these scopes requires a specialized Division 3 (Concrete) and Division 9 (Finishes) trade partner who combines high-capacity equipment with strict technical compliance.
At AK Level & Polish, we serve as a trusted flooring subcontractor for General Contractors, construction managers, and developer-builders across Toronto and the Greater Toronto Area (GTA). We deliver turnkey substrate preparation, hydraulic underlayments, resinous coatings, and concrete polishing backed by site accountability and strict specification compliance.
Key Subcontracting Scopes & Technical Standards
Equipped with industrial-grade machinery, certified installers, and dedicated site supervisors, we execute comprehensive flooring sub-scopes tailored to project demands:
1. Mechanical Concrete Surface Preparation (CSP 1–5)
Unbreakable mechanical bonding requires proper substrate profiling. We execute closed-loop, dust-controlled surface preparation across active and enclosed job sites:
- Planetary Diamond Grinding: Heavy-duty, multi-head grinding to remove existing adhesives, carpet mastic, curing compounds, and surface laitance while establishing a uniform profile for thin-film or high-build systems.
- Enclosed Steel Shot Blasting: Shot blasting to achieve ICRI Concrete Surface Profiles (CSP) 3 through 5, essential for heavy-duty urethane cement mortars and thick self-leveling overlays.
- Adhesive & Coating Removal: Polycrystalline diamond (PCD) tooling to strip fail-prone tile glues, black mastic, old epoxies, and elastomeric membranes.
2. Hydraulic Self-Leveling Underlayments (SLU) & Slab Remediation
Out-of-level or pitted concrete slabs delay the installation of finish coverings (LVT, hardwood, tile, sheet vinyl) and cause structural inconsistencies. Our continuous mixing pumps handle mass-volume placement:
- Tolerance Correction: Achieving specified FF/FL (Floor Flatness/Floor Levelness) ratings for commercial logistics hubs, retail plazas, and multi-family high-rises.
- Fast-Drying Hydraulic Cements: Rapid-setting underlayments allowing foot traffic in 2–4 hours and moisture-sensitive floor covering installation within 16–24 hours.
- Deep Fill Ramping: Ramping transitions and leveling severely compromised slabs from 1/8″ to 3″+ in a single lift.
3. Industrial & Commercial Resinous Coating Systems
We supply and install fluid-applied resinous flooring systems specified for distinct operational environments:
- Urethane Cement / Mortar: 3/16″ to 3/8″ heavy-duty thermal-shock systems designed for commercial kitchens, food processing plants, and washdown bays.
- 100% Solids Industrial Epoxy: High-build protective systems for manufacturing facilities, warehousing, auto dealerships, and mechanical rooms.
- Polyaspartic & Rapid-Cure Systems: UV-stable, fast-curing topcoats designed for rapid turnaround in retail spaces, residential garages, and high-traffic corridors.
- Decorative Flake & Metallic Epoxy: Custom aesthetic designs for commercial lobbies, showrooms, locker rooms, and multi-family residential amenities.
4. Architectural Concrete Polishing
For projects specifying low-maintenance, exposed concrete surfaces:
- Multi-stage wet/dry mechanical polishing ranging from honed satin (200–400 grit) to high-gloss mirror finishes (1500–3000 grit).
- Application of penetrating lithium silicate densifiers and stain-resistant protective guards to maximize surface density and abrasion resistance.
Subcontractor Capabilities Matrix
| Trade Scope | Core Equipment & Methods | Typical Turnaround Window | Primary Architectural Application |
| Self-Leveling Underlayment | Continuous mixing pumps, laser levellers | 2–4 hrs (Foot traffic) 24 hrs (Flooring install) | Division 9 Tile, LVT, Hardwood preparation |
| Urethane Cement Mortar | Power trowels, screed boxes | 6–12 hrs (Full chemical cure) | Commercial kitchens, food production, washdown bays |
| 100% Solids Industrial Epoxy | Planetary diamond grinders, notched squeegees | 12–24 hrs | Warehouses, manufacturing plants, mechanical rooms |
| Architectural Polished Concrete | Planetary grinders, HEPA dust extractors | Immediate return-to-service | Commercial retail, lobbies, residential spaces |
Compliance, Safety, and Site Accountability
Sub-Slab Moisture Vapor Mitigation
High moisture levels in concrete slabs cause widespread coating delamination and adhesive failure. We conduct in-situ Relative Humidity (RH) probe testing (ASTM F2170) and apply 100% solids epoxy moisture mitigation barriers (ASTM F3010) when slab emission rates exceed manufacturer limits.
Silica Control & Site Safety
We enforce strict compliance with Ontario Occupational Health and Safety Act (OHSA) regulations. All grinding and surface preparation machinery utilizes closed-loop HEPA dust extraction to eliminate airborne respirable crystalline silica on job sites.
Schedule Control & Capacity
Liquidated damages leave zero room for sub-trade delays. Our crews operate high-capacity machinery and offer flexible shift options—including night and weekend shifts—to protect critical-path timelines.
Learn more about our comprehensive concrete surface preparation and leveling services
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Partner with AK Level & Polish on Your Next Commercial Bid
Streamline your Division 3 and Division 9 trade management with a specialized subcontractor that delivers precision installation, safety, and accountability on job sites across Toronto and the GTA.Contact AK Level & Polish today
to send drawing packages for bidding, arrange a pre-bid site walk, or consult with our technical estimators on your upcoming project.
