Before you sign a contract with a concrete cutting and coring contractor, a thorough walk-through of your project site can save thousands in costly mistakes. A pre-work inspection lets you catch structural surprises, clarify scope, and confirm the contractor understands exactly what needs to be cut or cored. Here's what to ask and observe during that critical conversation.
Verify the Scope of Cuts or Cores
Start by walking the exact areas where cutting or coring will happen. Point out every wall, floor, or structural element that needs work, and have the contractor confirm measurements and locations. Ask them to mark the proposed cut lines with chalk or tape so both of you see the same thing.
Ask specifically:
- How wide will each cut be? (Concrete cutting typically ranges from 1 to 4 inches deep for standard concrete saws)
- Will the cut go all the way through the slab, or is it partial depth for joint work?
- Are there multiple cuts, and in what sequence will they be made?
Vague answers here signal a contractor who hasn't really studied your space. You want precision.
Identify Obstacles and Hidden Utilities
This is non-negotiable. Concrete often hides electrical conduit, water lines, rebar, post-tension cables, and HVAC ducts. Before any saw touches concrete, you and the contractor need to know what's underneath.
Ask the contractor:
- Have you reviewed the structural drawings or blueprints?
- Will you use ground-penetrating radar (GPR) or utility locating services?
- If GPR is needed, who pays for it, and what's the timeline cost (typically $300–$800 depending on area size)?
Don't assume the contractor will do this automatically. Many will, but some expect the property owner to arrange utility locates first. Clarify who's responsible and when it happens. A hit to a live electrical conduit can be dangerous and expensive.
Discuss Dust and Containment
Concrete cutting generates substantial dust and debris. Your walk-through is the time to establish how the contractor will manage it.
Ask:
- Will they use wet cutting to control dust, or dry cutting with HEPA filtration?
- How will they contain mess? (Plastic sheeting, barriers, vacuum systems?)
- What protection do adjacent areas need?
- How often will they clean up during the job?
If the job is near occupied spaces, offices, or sensitive equipment, dust containment cost can add $500–$2,000. Knowing this upfront prevents disputes later.
Confirm Equipment and Timeline
Walk through where equipment will be parked and how material will be removed. Large coring rigs or cutting saws need access, and concrete removal requires hauling space.
Check:
- What type of equipment will they bring? (Walk-behind saws, large stationary rigs, handheld cutters?)
- Where will they stage equipment and store cut concrete or cores?
- How many workers will be on-site, and for how long?
- What's the estimated timeline? (Typical jobs range from half-day to several days depending on footage)
A contractor who gives a vague "a few days" without specifics hasn't truly estimated the work. Realistic quotes usually break down by linear feet of cut or number of cores (typically $6–$15 per linear foot for cutting, $100–$400 per core depending on depth and diameter).
Clarify Finish and Cleanup Expectations
After cutting or coring, what happens next? Will they grind the edges, remove loose debris, or just leave rough cuts?
Ask whether the scope includes:
- Edge grinding or finishing
- Full debris removal or just the large pieces
- Sweeping and dust suppression post-job
- Repair of any incidental damage (minor spalling, dust on surfaces)
These details shift labor cost and timeline. Confirm what's included in the quoted price and what's extra.
Get It in Writing
Before you part ways, make sure your walk-through findings translate into a detailed written estimate. It should reference specific locations, measurements, equipment types, timeline, and what happens if utilities are discovered mid-cut.
If you're comparing multiple contractors, use the same checklist with each one so estimates are truly apples-to-apples. Services like Mercoly let you find and compare trusted concrete cutting and coring providers in your area, so you can vet experiences and quotes from vetted professionals.
Frequently Asked Questions
Q: What's the difference between concrete cutting and coring, and when would I need each? Cutting uses a saw to create shallow to medium-depth openings (for joints, control lines, or partial cuts), while coring drills cylindrical holes, usually for utilities or anchors. Most projects use one or the other, though some jobs need both.
Q: Do I need to shut down operations during cutting or coring work? It depends on dust control and noise. Wet cutting and proper containment can minimize disruption, but you'll want to plan around the timeline—most jobs require at least partial access restriction for safety.
Q: How do I know if a contractor has liability insurance for this work? Always request a current certificate of insurance naming your property as an additional insured; typical coverage is $1–2 million general liability plus workers' comp.
Connect with vetted concrete cutting and coring contractors in your area through Mercoly to compare expertise, insurance, and pricing.