For a straightforward installation of a single standard box in an accessible location, homeowners often see $120-$260. Projects involving new or upgraded circuits, larger panels, or difficult access commonly run $800-$1,600, with high-end setups surpassing $3,000 in some. Homeowners typically pay a broad range for electrical box installation, driven by box type, wiring complexity, and local labor rates. Main cost drivers include material quality, box size, wiring complexity, and permit requirements. This guide focuses on practical cost estimates and per-unit pricing to help homeowners and. The Home Depot has all your breaker box and circuit breaker needs covered. Our wide selection of options from top brands and helpful buying guide videos are a match for your next electrical project.