Concrete cutting and coring jobs vary wildly in speed—what takes one crew four hours might take another eight, depending on concrete strength, blade choice, and equipment. Understanding what's realistic helps you avoid overpaying for slow work or suspecting a contractor is rushing through corners. Here's what you should actually expect when hiring a concrete cutter or buying services.
Typical Cutting Speed Ranges
Standard concrete cutting runs between 1 and 4 linear feet per minute for wet sawing, though this depends heavily on concrete thickness and compressive strength. A 4-inch slab of standard concrete (3,000–4,000 PSI) cuts faster than reinforced concrete or post-tension slabs, which slow crews to 0.5–1.5 feet per minute due to rebar resistance.
For coring specifically, expect 6–12 inches of depth per minute on standard concrete, but reinforced concrete drops that to 2–4 inches per minute. A single 12-inch diameter core through 8 inches of typical concrete takes roughly 10–15 minutes of active cutting time, plus setup and dust control.
What Slows Things Down (And What Shouldn't)
Legitimate speed reducers:
- Aggregate hardness – granite or basalt aggregate cuts slower than limestone
- Reinforcing steel – rebar, wire mesh, or post-tension cables significantly extend timelines
- Depth – cutting through 8+ inches takes longer than 4 inches
- Moisture content – dry concrete is harder and slower to cut
- Age – older concrete (10+ years) is denser and tougher
Red flags for inefficiency:
- No dust control system in place (crews should be using wet saws or HEPA vacuums, not dry cutting)
- Operator struggling with blade selection or changing dull blades repeatedly mid-job
- Excessive re-tracing or multiple passes on the same cut
- Crew unprepared to handle rebar (should have plan, not discover it mid-cut)
How to Evaluate a Quote
When a contractor gives you an estimate, ask specifically about:
- Linear feet or number of cores – Get exact measurements so you can compare rate per foot or per hole
- Concrete specs – Ask them to confirm thickness, likely PSI, and presence of rebar in their estimate
- Equipment type – Walk-behind concrete saws typically cost $100–$250/hour; larger track-mounted units run $150–$350/hour
- Dust control method – Wet cutting adds cost but is often mandatory (check local regs); factor this into comparison
- Hourly vs. fixed price – Fixed-price jobs ($200–$800+ depending on scope) are clearer; hourly work ($80–$150/hour labor) risks overruns if conditions change
A reputable cutter will give you a timeline range ("4–6 hours") rather than a guarantee, because unexpected rebar or harder-than-expected concrete happens.
Efficiency Markers Worth Paying For
Invest in contractors who show:
- Laser guides or spray-marked cutting lines (setup saves botched cuts and redos)
- Multiple blade options on-site (diamond, segmented, or specialty blades for different concrete types)
- Dust control as standard (not an upsell)
- Crew experience with your concrete type (asking if they've cut similar projects is fair)
A crew moving quickly with these systems is efficient; the same speed without them is risky.
Comparing Providers
Mercoly helps you find and compare trusted concrete cutting and coring providers in one place, so you can review rates, read project feedback, and see actual timelines from similar jobs. This removes guesswork from your hiring decision.
Price-to-Speed Reality Check
Don't conflate low cost with speed. A contractor charging $80/hour for coring might be running aging equipment or cutting corners on dust control; one charging $150/hour might have better gear, faster throughput, and fewer callbacks. Compare total job cost (hourly rate × realistic hours) rather than hourly rate alone.
Standard concrete cutting through 4 inches averages $3–$8 per linear foot; coring a 12-inch hole in 8-inch concrete runs $80–$150 per hole. If a quote is half these ranges, ask why—it might legitimately be simpler work, or the contractor might be underestimating.
Frequently Asked Questions
Q: How long does it usually take to core a single hole in concrete? A: 10–20 minutes of active cutting for a standard 12-inch diameter hole through 8 inches of concrete, plus 10–15 minutes for setup and cleanup—so budget 30–45 minutes total per hole.
Q: Why do some concrete cutters take much longer than others on the same job? A: Blade quality, equipment age, crew skill, and dust control method all affect speed; older saws or dull blades can double the time, and reinforced concrete is inherently slower.
Q: Should concrete cutting always be wet, and does that cost more? A: Wet cutting is often legally required, adds $15–$40/hour in water and labor, but prevents silica dust hazards and improves blade life—it's worth the cost.
Compare contractors, verify credentials, and request timelines based on concrete specs before hiring.