*The Angi rating for Generator Install companies in Hanover, VA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.
*The HomeAdvisor rating for Generator Install companies in Hanover, VA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.
Last update on November 10, 2025
Serving Hanover, VA and surrounding areas
Approved
In business since 2011
Free estimates
Emergency services offered
"He arrived on time and did the installation. All were working great when he left"
Serving Hanover, VA and surrounding areas
Approved
In business since 2003
Free estimates
Credit card accepted
"Generator installed in 2 days. Extremely professional operation."
+2
Serving Hanover, VA and surrounding areas
Approved
Super Service Award Winner
In business since 2015
Emergency services offered
Warranties offered
"I had 5 ceiling fans installed. His installation process was extremely quick and efficient. He also fixed an outlet issue that I had in my living room on the spot. Would definitely use him again for any other future electrical projects."
+20
Serving Hanover, VA and surrounding areas
Approved
Super Service Award Winner
In business since 2006
Free estimates
Credit card accepted
"This was the second job I hired CRH for and it was a very tough install of recessed lights but they did a great job. I really appreciate these guys!"
Serving Hanover, VA and surrounding areas
Approved
In business since 2003
Free estimates
Emergency services offered
"James came out to price install of a box to plug in my portable generator. After we started talking and me asking questions James was able to give me an outstanding price on a whole house Generac generator with panel upgrade and included a whole house surge protector. They ran into additional costs with running the gas line but James kept to his word and honored the original price! The crew were professional and proficient in their work! Marcie was outstanding with communication and explaining any questions I had! I would definitely recommend this company and would use J&M for any future electrical needs!"
+1
Serving Hanover, VA and surrounding areas
Approved
In business since 2000
Free estimates
Credit card accepted
Since 1977, Woodfin – Your Home Team has made it our goal to faithfully serve Richmond, Virginia and the surrounding areas. We aim to be your trusted partner for all of your home comfort services, maintenance and installation needs so that you may have the peace of mind that your home is operating at optimal capacity. Whether you need heating and cooling, plumbing, electrical, generator, indoor air quality, propane or heating oil assistance, you can trust that Woodfin – Your Home Team will be available whenever you need us. We’re proud to be Your Home Team and Your #1 Faithful Friend.
Serving Hanover, VA and surrounding areas
Approved
In business since 1990
Free estimates
Emergency services offered
"GREAT! the best electrical contractor i ever hired. Fast Clean efficient Dependable and Safe"
+12
Serving Hanover, VA and surrounding areas
Approved
Super Service Award Winner
In business since 2020
Free estimates
Offers commercial services
"The outlet upgrades were completed and the Electrician was very knowledgeable and professional."
Serving Hanover, VA and surrounding areas
Approved
In business since 2024
Free estimates
Emergency services offered
"Great job by Smith Electric coordinating and taking care of my repair and new installation job! Definitely will use Smith Electric again."
Serving Hanover, VA and surrounding areas
Approved
In business since 2001
Free estimates
Warranties offered
"William Burden is the third generation owner of WBLightningRods and his company has been in business since 1950. He is very courteous, professional, was on time, and has a very good crew. William was present for the entire installation. We chose the copper system. We are glad for the peace of mind a lightning rod system will provide."
+79
When maintained properly, a whole-house generator can last up to 20 years. Costs to maintain and repair generators vary by location and type of generator, but you can expect to pay about $150 to $300 per year for annual generator maintenance checks. An experienced generator service technician will inspect your generator’s engine filter, starting mechanism, fuel, lubrication, and coolant levels to keep your generator in good working condition for as long as possible.
Installing a whole-house generator costs about $5,000 on average. Prices range from $1,550 to $8,500, depending on size, brand, fuel type, and assembly. The size of your whole-house generator is the most significant cost factor, with large homes with high energy demands costing the most to power. Types of whole-home generators include:
Portable generators with 1kW–7.5kW capacity: $500–$2,000
Partial generators with 9kW–20kW capacity: $2,000–$6,300
Whole-house generators with 22kW–48kW: $5,000–$18,000
When choosing the right size generator for your needs, consider a few items to help calculate the wattage you’ll need. Start by determining which household items and appliances you want to power, and then add the wattages together. Check out the wattage of these essential appliances:
Refrigerator: 600 watts
Large dehumidifier: 700 watts
Large window air conditioner: 1,400 watts
Water heater: 3,000 watts
Running home appliances like these requires a partial or whole-house generator. A portable generator may be enough to power your home if you only plan to keep a refrigerator and freezer running.
Here’s what you can run with different wattages and types of generators:
Portable generator:
2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers.
4,000 watts will keep two large appliances operating and a few smaller devices.
8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.
Partial to whole-house generator:
20,000 watts and above will make it seem like your home’s power is still on.
The value of installing a whole-house generator is that your home has guaranteed power, even if the power grid in your area is down. Whether a whole-house generator is worth installing in your home depends on how often you use it, your home’s location, and your lifestyle. For example, installing a whole-house generator is likely worth it if you:
Experience frequent or prolonged power outages
Work from home
Store a lot of cold food
Have a sump pump
Have a pump for well water
Use electronic medical devices
Live in a climate requiring heating or cooling
From average costs to expert advice, get all the answers you need to get your job done.
Natural gas generators are whole-home standby generators that are connected to your home’s natural gas line. The average cost for a natural gas generator is $12,000.
The average cost of a whole-house generator falls between $5,000 and $25,000. Keep reading to learn how much you can expect to spend.
The cost to install a generator transfer switch depends on several factors. Our guide will help you understand all of the costs.
Whole home generator installations require a professional hand. Read this guide to help you decide which generator is best for your home.
Generators should give you peace of mind, but you’ll only get that if your installer knows what they’re doing. Learn how to hire a pro and what red flags to look for.
Having a back-up power source in case of emergency is important. Here’s how to use a generator to power your house.
