Who do you call to have a generator installed?
You'll need to hire a qualified electrician or a specialized generator installer to install a whole-house generator. These professionals can handle the complex wiring, ensure the installation meets local electrical codes, and safely connect the generator to your home's power system. Some projects may also require a licensed plumber if a natural gas line is needed.
What should I ask before hiring a generator installer?
Before hiring generator installers, ask them:
Are you licensed, bonded, and insured for this type of work?
What size and fuel type of generator do you recommend for my home’s needs?
Can you provide an itemized quote that includes the generator, transfer switch, labor, and any other costs?
Will you handle all the necessary local permits and inspections?
What is the estimated timeline for the entire installation process?
What does the warranty cover for both the equipment and your workmanship?
Do you offer ongoing maintenance plans after the installation is complete?
Do I need a permit for a whole house generator?
In most cases, yes, you do need a permit to install a whole house generator. Permits are typically required because the installation involves electrical connections, fuel lines (natural gas or propane), and sometimes concrete pads. Local building departments use permits to ensure the generator meets safety, zoning, and code requirements. The exact permits needed vary by location, so it’s important to check with your local building authority or work with a licensed installer who can obtain the required permits for you.
Is it worth it to hire an electrician?
Yes, it's usually worth it to hire an electrician instead of doing the work yourself.
Electrical work can be very dangerous. The pros spend many years working and studying before they become licensed and certified. That knowledge and training can help them work safely and perform the job without harming themselves or your home.
Even a small wiring repair job can be unsafe if not done correctly. Hiring someone that has specialized training on how to do each specific job is the safest choice.
Get free estimates from the best electricians near you today.
What impacts the cost of intalling a generator?
Generator installation varies in price depending on a few factors, including:
Generator size and type: The generator’s power output, measured in kilowatts, is a major cost driver. A larger unit that can power your whole house will cost more than a smaller one for just the essentials.
Type of transfer switch: An automatic transfer switch (ATS), which kicks on by itself when the power goes out, is more complex and costly to install than a manual switch you operate yourself.
Installation location: The distance from your home’s main electrical panel and fuel source can affect labor time and material costs for wiring and piping.
Fuel source: Connecting to an existing natural gas or propane line is a different scope of work than installing a system that uses diesel or gasoline, which may require a separate storage tank.
Site preparation: Your installer may need to prepare the site by pouring a concrete pad for the generator to sit on, which can add to the overall project cost.
How long does it take to install a generator?
It might take one to three days for a professional to install your generator. The total timeline depends on things like:
Type of generator: Installing a large standby generator takes significantly more time than setting up a connection for a portable unit.
Site preparation: The pro may need to level the ground and pour a concrete pad before placing the generator.
Electrical complexity: Connecting the generator and transfer switch to your home’s electrical panel can be a detailed process.
Fuel source connection: Running a new gas line for a natural gas generator adds time to the project.
Permits and inspections: Your installation may require local permits and inspections, which can affect the overall timeline.
Remember: The timeline for your project will vary depending on many factors. Always ask your pro to provide an estimate.
How can I prepare for my generator installation?
Taking these steps before your pro arrives to install a generator will help ensure a safe and efficient appointment:
Clear the installation area. This includes the space around your main electrical panel and the outdoor location where the generator will be placed. Removing any obstacles or personal items beforehand helps the pro get right to work.
Plan for a temporary power outage. Your pro will need to shut off your home’s electricity to safely connect the generator to your system. Ask them for an estimated duration so you can prepare for the downtime.
Secure pets and keep children away. For everyone’s safety, please keep pets and children clear of the work areas, both inside and outside. The installation involves heavy equipment and open electrical components.
Gather relevant documents. If you have a copy of your property survey or any diagrams of your home’s electrical system, have them ready. This information can help your pro confirm the best placement and wiring routes.
Check your electrical panel. Take a look at your main service panel to ensure the labels are clear and there are no visible signs of damage. If you notice any issues, you may need an electrical and wiring repair pro to address them first.