How much does it cost to upgrade from 100 amp to 200 amp service?

Most 200 amp upgrades cost more than a simple panel swap. A best‑case panel swap can be as low as $3,600, but most homes need additional code and system upgrades. In Arlington and Mansfield, final pricing depends on inspection and scope.

What drives cost beyond the panel:

• Meter and power supply upgrades for higher load
• Grounding and bonding updates
• Wiring or panel relocation work
• Whole‑home surge protection, GFCI/AFCI updates, NEC changes
• Adding sub‑panels or new circuits

Note: Our site lists 100–125A panels starting at $3,500–$3,600; 200A service is typically higher. We’ll confirm on site. <br/> Updated: 2025-12-29 <br/> Need help in Arlington, TX? Call 469-388-0889 or book online. "Professional evaluation of my homes electrical status (breaker box, wiring, etc) was both thorough and exceptional." — William L.