Title: Concrete subcontractor | Cercha
Description: Compare concrete subcontractors by foundation scope, pour readiness, curing, NC credentials, and the handoff to framing crews.
Canonical: https://cercha.pages.dev/trades/concrete/
# Hiring a concrete and foundation subcontractor
Residential trades
Compare foundation bids around the approved system, inspection readiness, curing plan, and the elevations handed to framing.
## Concrete subcontractor scope and pour readiness
You need a foundation ready for the next crew, with approvals and [curing](/glossary/#curing) already accounted for. Compare concrete subcontractors against the same drawings and responsibility list. Put the [release to framing](/trades/framing/) in writing before choosing a pour date.
### Price the complete foundation package
For a new home, specify footings, walls or slab, reinforcing, anchors, placement, finish, and curing. List foundation masonry, waterproofing, drainage, and underground services separately unless the bid expressly includes them. Ask who [supplies the ready-mix](/suppliers/concrete-and-masonry/) and who checks the ordered mixture against the project documents.
For a remodel, identify the connection to retained work and the limit of demolition. Request designer-approved details for underpinning, changed supports, and structural repairs. Ask the crew to price temporary access and protection separately. Keep the decision to redesign a foundation with the responsible designer.
Give every bidder the same drawings and scope checklist. Request the assumptions behind quantities, pumping, disposal, and weather protection. Avoid accepting a cheaper total without checking which operation or return visit it leaves out.
### Coordinate before placement
Agree how excavation is accepted and how the crew confirms elevations. Coordinate penetrations with plumbing and electrical before placement. Ask framing to review anchor and bearing locations while corrections remain visible. Identify the party that accepts those locations before the concrete truck is released.
For Raleigh's qualifying under-slab inspection, concealed plumbing and electrical must already have approval. Footing inspection comes before placement. [Residential inspections][inspect] Ask your own inspector for the project-specific list. Do not apply the habitable-slab process automatically to every driveway or walkway.
Book the inspection and placement as separate commitments. Name the person who tells the supplier whether the pour proceeds. Keep enough access for the inspector to examine the required details. Document corrections before calling the work ready.
### Make curing part of the schedule
Curing maintains moisture and temperature needed for concrete's intended strength and durability. Conditions also affect when forms can be removed and later work proceeds. [NRMCA curing guidance][cure] Request the method, weather contingencies, and the person responsible after the placing crew leaves.
Ask who authorizes loading and when framing may begin. Do not substitute a universal day count for the project's requirements. Save mixture tickets, placement conditions, and the curing record with the foundation handoff. Ask how the contractor protects the surface while other trades cross it.
### Check NC credentials separately
G.S. 87-1 ties the $40,000 GC threshold to the undertaking and who contracts for it. It distinguishes work for a licensed GC from work for an unlicensed customer. Ask the board how your contract fits that definition. [NC contracting definition](https://www.ncleg.gov/enactedlegislation/statutes/html/bysection/chapter_87/gs_87-1.html) Review S(Concrete Construction) against the foundation package. [Board rules][rules]
Match the claimed license to the contracting entity. Licensure alone does not establish insurance coverage. [Contractor FAQ][entity] Request current insurance evidence from the insurer. Obtain the assigned foreman's name, committed crew, concurrent-job plan, and written callback responsibility before hiring.
### Review hidden work and callbacks
Ask for photos of supported reinforcing, penetrations, anchors, and vapor-layer seams before concealment. Add completed elevations and curing views from that same job. Compare these against approved details and inspection records, rather than judging the foundation only by a smooth finish.
Poor curing can contribute to cracking and surface deterioration. [NRMCA][cure] A crawlspace slab alone does not stop ground moisture; an underlying capillary break addresses that route. [PNNL crawlspace guidance][slab] Ask how the crew preserves that layer around posts and pipes.
Separate appearance complaints from conditions requiring designer review. Request a written process for cracks, moisture, and elevation disputes. Keep photos, weather records, and the relevant detail together before authorizing a repair. Avoid declaring structural adequacy from the width of a crack in one image.
### Release waterproofing and drainage before backfill
Treat foundation waterproofing as a named package, even when your concrete sub offers it. Assign substrate acceptance, membrane application, foundation drains, protection, and backfill to specific contractors. Record their separate releases in the foundation waterproofing handoff.
For example, MEL-ROL instructions require a prepared concrete substrate and recommend protection before backfilling. Use that guidance only for the named product. [Manufacturer requirements](https://www.wrmeadows.com/mel-rol-waterproofing-membrane/) PNNL describes footing drainage with an outlet and protection against clogging. [Footing drain guidance](https://basc.pnnl.gov/resource-guides/footing-drain-pipe)
Ask the responsible designer and waterproofing installer to approve the selected product and substrate condition. Resolve [plumbing](/trades/plumbing/) and [electrical penetrations](/trades/electrical/) before sealing them. Keep inspection access and photos of seams, penetrations, drains, and protection available before concealment. Give the [excavation crew](/trades/excavation/) a named backfill release contact and the accepted protection and structural conditions.
## For concrete and foundation subs
Present your bid around readiness and the completed handoff. State the foundation systems you perform and the parts supplied by others. Give the builder a [pre-pour checklist](/guides/site-readiness-checklist/) with a named contact for service conflicts and inspection corrections.
For your portfolio, pair reinforcement and moisture-control photos with the finished foundation. Caption the approved system, your scope, and the stage. Include one correction example that explains the issue, the responsible decision, and the completed response. Keep customer information out of shared records.
When seeking another builder relationship, ask about planned starts, concrete ordering, access, and payment documentation before reserving the crew. Offer a realistic sequence for forms, placement, curing support, and return work. Update that sequence when conditions change rather than treating the pour as the only appointment.
To keep the relationship useful, hand over records the next crew can use. Identify outstanding conditions before framing arrives. Ask the builder for a reference about scope clarity and response to punch work. Treat warranty questions as written responsibilities with stated exclusions, rather than a promise that every future crack receives the same repair.
## Examples from the field
*Illustrative examples, not member stories*
### Slab with underground services (illustrative)
Your planned slab includes plumbing and electrical penetrations. Record the required approvals and accepted locations before releasing placement.
### Addition beside retained work (illustrative)
You price a new footing beside an existing foundation. Keep the approved connection detail and removal boundary with the crew, then route changed conditions to the designer.
### Foundation release to framing (illustrative)
Your placing crew leaves while curing remains in progress. Give the builder the curing responsibility record and identify who authorizes the next crew to load the foundation.
## Where Cercha fits
Cercha portfolios let a foundation sub show named projects and photos from before and after placement. Builders can review builder endorsements and use Messages to ask about the proposed system, crew, and curing handoff.
[inspect]: https://raleighnc.gov/permits/services/residential-inspections
[cure]: https://www.nrmca.org/wp-content/uploads/2021/01/11pr.pdf
[license]: https://www.nclbgc.org/faq-consumers/
[rules]: https://www.nclbgc.org/wp-content/uploads/2024/02/2024-Contractors-Laws-And-Regs.pdf
[entity]: https://www.nclbgc.org/faq-contractors/
[slab]: https://basc.pnnl.gov/resource-guides/capillary-break-crawlspace-floor-polyethylene-sheeting-under-concrete-slab
## Related trades and suppliers
- [Hiring an excavation subcontractor for sitework]()
- [Plumbing subcontractors: from underground to final]()
- [Hiring a residential framing subcontractor]()
- [Hiring a residential masonry subcontractor]()
- [Hiring a residential deck subcontractor]()
- [Electrical subcontractors: scope, proof, and builder work]()
- [Ready-mix and masonry supply for builder jobs]()
- [Lumber suppliers for home builders: framing packages]()
## Questions
### Which conditions make a foundation engineer necessary?
Ask the responsible designer about changed support conditions, underpinning, unexplained movement, or a departure from the approved foundation details. Do not ask the placing crew to resolve a design question through an undocumented field change.
### What needs to be ready before the concrete crew pours?
Confirm the permit-specific inspection approvals, forms, reinforcing, service penetrations, access, and curing supplies. Ask the official which concealed plumbing and electrical approvals must precede the slab inspection.
### Which items belong in a foundation contractor's proposal?
Request the foundation system, quantities or plan basis, reinforcing responsibility, placement, finish, curing, exclusions, and return visits. Identify drainage, waterproofing, masonry, and underground services as included or separately assigned.
### How do access, reinforcement and wall dimensions affect poured-wall pricing?
Ask for the takeoff and assumptions behind the quote. Compare pump or truck access, reinforcing scope, forms, wall geometry, and placement stages. Have each bidder identify allowances rather than comparing unexplained totals.
### How are site access and cleanup coordinated for foundation work?
Mark truck routes, pump setup, washout arrangements, staging, and retained surfaces before the crew arrives. Agree who restores disturbed access and who removes forms, packaging, and unused materials.
## Build your connections
[Ask about the beta]()
## Sources
1. City of Raleigh. (2026, October 12). *Residential Inspections*. Raleighnc.gov. https://raleighnc.gov/permits/services/residential-inspections
2. National Ready Mixed Concrete Association. (n.d.). *CIP 11 - Curing In-Place Concrete*. Concrete in Practice. Retrieved October 14, 2026, from https://www.nrmca.org/wp-content/uploads/2021/01/11pr.pdf
3. North Carolina Licensing Board for General Contractors. (n.d.). *FAQ for Consumers*. NCLBGC. Retrieved October 14, 2026, from https://www.nclbgc.org/faq-consumers/
4. North Carolina Licensing Board for General Contractors. (2024). *2024 Laws and Regulations Applicable to General Contracting in the State of North Carolina*. NCLBGC. https://www.nclbgc.org/wp-content/uploads/2024/02/2024-Contractors-Laws-And-Regs.pdf
5. North Carolina Licensing Board for General Contractors. (n.d.). *FAQ for Contractors*. NCLBGC. Retrieved October 14, 2026, from https://www.nclbgc.org/faq-contractors/
6. Pacific Northwest National Laboratory. (n.d.). *Capillary Break at Crawlspace Floor - Polyethylene Sheeting under Concrete Slab*. Building America Solution Center. Retrieved October 14, 2026, from https://basc.pnnl.gov/resource-guides/capillary-break-crawlspace-floor-polyethylene-sheeting-under-concrete-slab
7. Pacific Northwest National Laboratory. (n.d.). *Footing Drain Pipe*. Retrieved October 14, 2026, from https://basc.pnnl.gov/resource-guides/footing-drain-pipe
8. W. R. Meadows. (n.d.). *MEL-ROL Waterproofing Membrane*. Retrieved October 14, 2026, from https://www.wrmeadows.com/mel-rol-waterproofing-membrane/
9. N.C. Gen. Stat. ยง 87-1. https://www.ncleg.gov/enactedlegislation/statutes/html/bysection/chapter_87/gs_87-1.html