Concrete cutting and coring work sounds intimidating, but most customers can understand the basics once they know what to expect. Whether you're prepping a foundation for utilities, creating doorways, or removing sections for renovation, the right contractor makes all the difference. We've answered the most common questions to help you hire confidently.
What's the Difference Between Concrete Cutting and Coring?
Concrete cutting creates shallow grooves or channels across the surface—typically for saw-cutting control joints, decorative patterns, or cutting through slabs before removal. Coring drills through the full depth of concrete to create clean, cylindrical holes for pipes, electrical conduits, HVAC penetrations, or anchoring. Both require specialized equipment and trained operators, but they serve different purposes on your project.
How Much Does Concrete Cutting and Coring Cost?
Pricing depends heavily on depth, diameter, concrete hardness, and access. Here's what to budget:
- Saw cutting (linear feet): $3–$8 per foot for standard residential slabs; thicker or reinforced concrete runs $8–$15+ per foot
- Coring (per hole): $50–$150 for small holes (under 4 inches diameter) in standard concrete; large diameter or deep coring can reach $300–$500+ per hole
- Labor and equipment: Most contractors charge a minimum service call of $200–$500, especially for small jobs
- Rush or after-hours work: Expect 25–50% surcharges
Get three quotes to compare; reputable contractors will assess your concrete conditions on-site before final pricing.
What Should I Know Before Hiring a Contractor?
Ask these questions upfront:
- Do they have concrete inspection reports or ground-penetrating radar (GPR)? GPR scans detect rebar, post-tension cables, and utilities inside the concrete, preventing costly mistakes and safety hazards. This should be standard practice.
- Are they licensed and insured? Concrete cutting involves high-speed equipment and dust exposure—verify liability insurance and workers' compensation.
- What's their dust and debris plan? Concrete cutting generates significant dust. Professional contractors use wet-cutting methods (water for cooling and dust suppression) or HEPA-filtered vacuum systems.
- Can they provide references? Contact two or three previous customers, especially those with similar scope.
- Is there a written quote with timeline? Vague estimates invite disputes. A good quote specifies hole sizes, depths, locations, and completion date.
How Long Does a Typical Job Take?
Timeline depends on scope:
- Small coring (1–4 holes, under 12 inches deep): 2–4 hours
- Multiple holes (6–10 holes): Half day to full day
- Extensive saw-cutting (100+ linear feet): 1–3 days
- Complex jobs with GPR scanning and tight access: Add 1–2 days for planning and prep
Weather, concrete strength, and equipment availability can shift timelines. Schedule well in advance during busy seasons (spring and summer).
Do I Need Permits?
In most jurisdictions, structural modifications—especially those affecting utilities or building systems—require permits. Your contractor should confirm local requirements, but don't assume they will. Before hiring, contact your local building department to verify whether your project needs approval. Permitted work also provides documentation for insurance and future resale.
How Do I Protect Nearby Areas During Cutting?
Professional contractors should:
- Isolate the work zone with temporary barriers to contain dust and debris
- Use wet-cutting methods or enclosed cutting heads with vacuum extraction to minimize airborne particles
- Cover or protect nearby equipment, finished surfaces, and HVAC openings
- Manage water runoff if wet-cutting to prevent pooling or drainage issues
Clarify dust and water management in your contract to avoid disputes over cleanup.
What About Cutting Through Reinforced Concrete?
Rebar and post-tension cables complicate the job and increase risk. Professional contractors will:
- Scan with GPR before cutting to locate rebar and utilities
- Cut around steel or use wire saws designed for reinforced concrete
- Charge a premium (often 20–40% more) for reinforced work
- Provide documentation of what was cut or avoided
Never hire someone unwilling to scan first—it's a red flag for inexperience.
Finding the Right Contractor
Comparing quotes and contractor experience can be time-consuming. Mercoly lets you find and compare trusted concrete cutting and coring providers in your area, complete with verified reviews and detailed pricing, so you can hire with confidence.
Frequently Asked Questions
Q: Can I cut concrete myself with a rental saw? A: Renting a concrete saw is possible for small DIY projects, but requires proper training, dust control equipment, and risk of damaging utilities—professionals have insurance and liability protection you won't.
Q: How deep can concrete coring go? A: Most standard drilling reaches 12–24 inches; specialized rigs can core 3+ feet deep, but cost increases significantly and may require additional structural assessment.
Q: Will cutting concrete create visible cracks elsewhere? A: Professional wet-cutting minimizes shock; however, existing stress in concrete or nearby damage can cause secondary cracking—a pre-job assessment helps predict and prevent this.
Get three quotes from licensed concrete contractors in your area and ask each about GPR scanning before committing.