Bonding and Grounding Services in Phoenix, Arizona

What is the difference between grounding and bonding?

Grounding connects the electrical system to the earth. Bonding connects the metal parts of the system to each other. They do different jobs, and a building needs both.

Grounding gives lightning and line surges a path to earth and holds the system at a stable voltage. Bonding gives a fault a low-resistance path back to the source, so a breaker trips in a fraction of a second instead of leaving a metal enclosure energized.

What bonding and grounding work do we handle?

• Service equipment bonding and the neutral-to-ground connection at the service
• Grounding electrode systems, including ground rods and concrete-encased electrodes
• Equipment grounding conductors and bonding jumpers
• Bonding of metal water and gas piping
• Grounding of transformers and generators that create a separately derived system
• Repairs where a bond was removed, corroded or never installed

The governing rules are in NEC Article 250. Phoenix-area cities adopt the NEC on their own schedules, so we confirm the edition your inspector enforces before work starts.

How do you know if a building has a bonding or grounding problem?

• People feel a tingle or shock when they touch a machine or metal cabinet
• A fault does not trip a breaker, or a breaker takes too long to trip
• Electronics reset or misbehave with no clear cause
• Ground rod clamps or bonding connections are loose or corroded
• Neutrals and grounds are tied together in a subpanel, which is a common mistake that sends current onto metal parts it should never touch
• An inspection flagged missing or undersized bonding

How do we verify the work?

We inspect every bond and clamp, test continuity along the bonding path, and measure ground resistance when electrode performance is in question. You get a short written note on what we found and what we corrected. If a connection looks suspect, we can scan it with a thermal camera as part of infrared thermography.

Who needs this work?

Tenants finishing a new space, property managers after a shock complaint, owners who failed an inspection, and facilities adding a transformer or generator. If you are unsure which applies, an electrical inspection is a good first step.

This work is part of our Commercial Electrical Services.

Arizona ROC #153656 (CR-11) | Over 40 years in business