GrindStone Construction
About us
rindStone Construction LLC is a veteran-owned, licensed, and insured general contractor based in Cary, NC. We specialize in designing and building Accessory Dwelling Units (ADUs) — backyard cottages, in-law suites, and garage apartments — for homeowners across Raleigh, Cary, Apex, and Wake County. From our free 72-hour feasibility check to custom design, permitting, and turnkey construction, we manage the entire process so you can add living space, rental income, or multigenerational housing with confidence. With values rooted in integrity, quality, and respect, GrindStone delivers a smooth, transparent building experience for Triangle homeowners looking to maximize their property’s potential.
Business highlights
Services we offer
ADU Feasibility Studies – Free 72-hour property checks for zoning & site fit, Accessory Dwelling Units (ADUs) – In-law suites, backyard cottages, garage apartments, Custom ADU Design & Planning – Floor plans tailored to family or rental needs, Project Management & Oversight – Owner-led quality, schedule, and budget control, Turnkey ADU Construction – Site prep, framing, utilities, and finishes
Amenities
Free Estimates
Yes
Warranties
Yes
Accepted Payment Methods
- CreditCard
Licensing
State Contractor License Requirements
All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our Find Licensing Requirements page.
*Contact business to see additional licenses.