Detached Garage Utilities: A Guide to Electrical, Plumbing, & HVAC

When planning for a new detached garage construction project, many homeowners focus on the structure and aesthetics. However, planning for utilities is just as important. Getting the electrical, plumbing, and HVAC right from the start ensures your garage is a truly functional and comfortable space. Here is a step-by-step guide on what to consider when you’re ready for your detached garage installation.

Electrical

The electrical plan is the foundation of a modern garage. It’s crucial to determine what you’ll use the space for before the first wire is run. For a simple garage, a basic lighting and outlet plan is sufficient. However, for a workshop, you’ll need a dedicated sub-panel to handle power for tools like welders, compressors, and saws. We’ll work with you to plan for a sufficient number of outlets—both 120V and 240V—strategically placed where you’ll need them most. All wiring will be run safely and in compliance with local code, often through underground conduit to the main electrical panel of the house.

Plumbing

While not every garage needs plumbing, it can dramatically increase the functionality of the space. Consider a utility sink for washing up after working on a project, or for quick clean-ups after yard work. If you plan on a finished space, adding a bathroom can make the area completely self-contained, especially if it’s used as a home office or gym. Planning for plumbing early is vital as it requires trenching and running pipes from the main house to the garage.

HVAC

Utah’s climate can be extreme, and a garage without climate control can be uncomfortable in both summer and winter. For a garage that’s used for hobbies or as a finished living space, we highly recommend adding a heating and cooling system. Options like ductless mini-split systems are excellent for garages as they provide both heating and cooling without requiring extensive ductwork. Another option for heating is a radiant floor heating system, which is installed during the concrete pour. For a simple workshop, a small space heater and a window unit might be enough.

Your Full-Service Garage Builder

By thoughtfully integrating the right electrical, plumbing, and HVAC systems from the very beginning, we ensure your new detached garage is a comfortable, functional space you can use year-round, for any purpose. We have over 30 years of experience helping homeowners in the Salt Lake City area build a garage that perfectly fits their needs, all with the quality and craftsmanship you deserve. Contact Dave Johnson Construction today for a personalized consultation and a free quote.