Residential electrical
Panel upgrades, rewiring, lighting, outlets, and switches.
Holder Inc
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About Holder Inc
An electrical contractor and supplier serving Philadelphia and surrounding counties. Holder Inc. operates as Donovan Electric & Supply and handles residential, commercial, and industrial electrical projects. Residential services include panel upgrades, whole-house circuit protection, lighting and fixture work, outlets and switches, and service upgrades from 100 to 400 amps. The company also rewires homes, including replacement of knob-and-tube wiring to meet current code. Commercial work includes electrical system installations and emergency repairs. Industrial services cover transformers, compressors, motors, switchgear, high-voltage work, transfer switches, power supplies, conduit, wire trays, and generators. The business has served the area for over 35 years and holds DBE certifications in Pennsylvania and other states along the eastern seaboard.
Disclosure: Profile information has been compiled from publicly available sources and has not yet been verified by the business.
Representative photos. Illustrative images for this category, not photos of Holder Inc and not provided by the business.
Services & specialities
Highlights
Commercial projects
Electrical system installations and emergency repairs.
Industrial services
Transformer, motor, switchgear, and generator work.
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