How to Wire a Detached Garage and Why You Should Leave It to the Pros

Picture this—your detached garage, currently home to a bunch of power tools and storage boxes, suddenly has lights. You turn that additional living space into a home office or an entertainment center, or even a workspace for your home improvement projects.

Sounds pretty great, but getting electricity to a detached garage does require lots of know-how and hard work. It’s the type of job best left to a local electrician, but what does the process look like? This guide explains how an electrician runs power to a detached garage.

How to Wire a Detached Garage

Creating a safe and functional detached garage involves much more than running electrical wires. It requires the expertise of a professional electrician who understands the intricate details of electrical systems, local building codes, and safety standards. Here’s how they do it.  

Designing Your Garage Wiring

Electrical work in a detached garage should start with thoroughly assessing your needs. Consider the intended use of the space, such as a workshop, storage area, or home office, and work with a licensed electrician to determine the electrical load requirements for lighting, outlets, and any power tools or appliances you plan to use. 

When wiring a detached garage, ask yourself the following questions to ensure a safe and functional electrical installation.

Average Cost to Wire a Garage

The price range for installing electrical wiring in a garage falls between $1,000 and $2,500. However, it's essential to remember that expenses may escalate in cases where you need to open up drywall or when extra outlets are required to power various appliances.

Hiring a Professional

The expense of extending electrical power to a detached garage falls within the range of $1,000 to $2,500, contingent upon factors like your electrical requirements and whether any drywall modifications are necessary for new wiring. If substantial electrical work is required, like an upgraded electrical panel, the project's cost may escalate, potentially reaching figures of $4,000 to $5,000 or even more. 

Consult with a local electrician who can assess your needs and provide a detailed cost breakdown based on your circumstances and local regulations.

Cost to DIY Electric to Your Detached Garage

If you plan to DIY, you must obtain a permit before beginning work and schedule an inspection afterward for code compliance. Only attempt the project if you have extensive electrical experience and a thorough understanding of how to be code-compliant. Remember, many licensed professionals guarantee their work, providing peace of mind.

Your out-of-pocket expense depends on the project. On average, you may save $162 to $535—the cost of hiring a licensed electrician. The exact amount depends on the scope of work, and your materials cost will be just as high. Unless you’re a pro, attempting DIY this project is not worth the savings.  

Why You Should Hire a Professional

Hiring a professional electrician in your area for electrical work in your garage is a wise decision for several important reasons.

• Safety: Electrical work can be hazardous, especially if not done correctly. A professional electrician is trained and experienced in adhering to safety protocols, minimizing the risk of accidents, electrical shocks, and fires. 

• Compliance: They will ensure that your garage's electrical installation complies with all the necessary codes and permits.

• Work quality: Professionals have the expertise to perform high-quality work. They will use suitable materials, tools, and techniques to ensure a reliable and long-lasting electrical system in your garage.

• Insurance and liability: In case of accidents, damage, or electrical failures, the electrician's insurance will typically cover the costs.

• Efficiency: Professionals work efficiently and can complete the job in a reasonable timeframe. This means less disruption to your daily routine and faster access to electricity in your garage.