On large-scale commercial, institutional, and residential construction projects, managing Division 3 (Concrete) and Division 9 (Finishes) trade scopes requires absolute coordination. Flaws or schedule slips during concrete surface profiling, moisture vapor mitigation, hydraulic leveling, or resinous coating application create a domino effect—halting subsequent trades and jeopardizing milestone handoffs.
At AK Level & Polish, we provide end-to-end flooring subcontracting support tailored for General Contractors, project managers, and developer-builders across Toronto, the GTA, and Southern Ontario. From pre-con slab auditing to final architectural sign-off, we bring heavy-capacity machinery, certified field crews, and rigorous technical management to high-volume builds.
Phase-by-Phase Subcontractor Management
We integrate seamlessly into your project workflow across all active construction phases:
[ Pre-Construction & Auditing ] ──► [ Substrate Prep & Profiling ] ──► [ Leveling & Moisture Control ] ──► [ Coating & Polishing Execution ]
1. Pre-Construction & Substrate Auditing
- 3D Floor Levelness/Flatness Auditing: Pre-pour and post-cure slab evaluation to establish exact material takeoffs for self-leveling underlayments (SLU).
- In-Situ Moisture Testing: Standardized Relative Humidity (RH) probe testing (ASTM F2170) and Calcium Chloride testing (ASTM F1869) to identify moisture vapor emissions before finish installation.
- Submittal Packages: Complete submittal generation including Technical Data Sheets (TDS), Safety Data Sheets (SDS), system mockups, and ASTM compliance documentation for rapid consultant approval.
2. Mechanical Concrete Surface Preparation (CSP 1–5)
- Planetary Diamond Grinding: Continuous multi-head grinding to strip legacy adhesives, curing membranes, and surface laitance while opening slab pores.
- Enclosed Steel Shot Blasting: Enclosed shot blasting to achieve ICRI Concrete Surface Profiles (CSP) 3 through 5—mandatory for heavy-duty urethane mortars and high-build overlays.
- Adhesive & Mastic Removal: PCD (polycrystalline diamond) tooling to strip fail-prone tile adhesives, black mastic, and elastomeric membranes without damaging structural concrete.
3. Hydraulic Self-Leveling & Moisture Mitigation Systems
- ASTM F3010 Epoxy Vapor Barriers: Single-coat, 100% solids epoxy moisture mitigation systems engineered to suppress RH levels up to 100% prior to installing sensitive coverings.
- Pumpable Self-Leveling Underlayments (SLU): Continuous, high-output mechanical pumping capable of pouring tens of thousands of square feet per shift to restore FF/FL tolerances.
- Deep-Fill Ramping & Pitching: Precision placement ranging from 1/8″ Featheredge to 3″+ deep pours for drain slopes and threshold transitions.
4. Resinous Systems & Architectural Polishing
- Urethane Cement / Mortar (3/16″ to 3/8″): Thermal-shock resistant, heavy-duty floor systems for food production, commercial kitchens, and washdown bays.
- 100% Solids Industrial Epoxy: Multi-coat protective systems for high-traffic warehousing, logistics hubs, auto dealerships, and mechanical rooms.
- Architectural Concrete Polishing: Multi-stage mechanical grinding and polishing (from 200-grit satin to 3000-grit high gloss) paired with penetrating lithium silicate densifiers and guard treatments.
High-Volume Technical Scopes Matrix
| Trade Scope | Equipment / Execution Method | Daily Production Capacity | Turnaround / Return-to-Service |
| Pumpable Self-Leveling Underlayment | Continuous mixing pumps, laser targets | Up to 15,000+ sq. ft. / shift | 2–4 hrs (Foot traffic) 24 hrs (Finish flooring) |
| Urethane Cement Mortar | Heavy power trowels, screed boxes | 3,000–5,000 sq. ft. / shift | 6–12 hrs (Full chemical cure) |
| Industrial Epoxy Coatings | Planetary grinders, notched squeegees | 5,000–8,000 sq. ft. / shift | 12–24 hrs |
| Architectural Polished Concrete | Heavy planetary grinders, HEPA vacuum systems | 2,500–4,000 sq. ft. / shift | Immediate return-to-service |
Built for Large-Scale Project Execution
Capacity & Night/Weekend Execution
Large-scale builds demand schedule flexibility. Our field teams operate round-the-clock—including off-hours, night shifts, and weekend mobilizations—to execute noisy or dust-producing prep work without interrupting surrounding trades.
On-Site Safety & Regulatory Compliance
- Silica Control (OHSA): All grinding and shot-blasting operations utilize closed-loop HEPA dust extraction to maintain zero airborne respirable crystalline silica exposure.
- Full Insurance & Safety Credentials: WSIB compliant, fully insured ($5M liability), and crew-certified for WHMIS, Fall Protection, and Confined Space Entry.
Learn more about our complete concrete surface preparation and leveling services
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Subcontract Your Large-Scale Scopes with AK Level & Polish
Ensure schedule integrity, specification compliance, and seamless site coordination on your next major development in Toronto, the GTA, or Southern Ontario.Contact AK Level & Polish today
to submit drawing packages for estimation, arrange pre-bid site visits, or review project submittals with our engineering team.
