Top-rated generator install pros.

Get matched with top generator install pros in Madison, WV

Enter your zip and get matched with up to 5 pros

Need a pro for your generator install project in Madison, WV?

Select your specific project to find the pro for you.

Verified Reviews for Generator Install pros in Madison, WV

*The Angi rating for Generator Install companies in Madison, WV 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 Madison, WV 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 April 20, 2026

Find Generator install pros in Madison

B and J Electrical Services
5.0(
2
)

Serving Madison, WV and surrounding areas

Approved

In business since 2009

Free estimates

Small jobs welcome

B AND J ELECTRICAL SERVICES, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 10 years of experience serving Wharton and surrounding areas. There is no job too big, or too small for our team. Call today and let us put our experience to work for you!

Response time2 hrs
Response rate95%
Recommended by100%of homeowners
Request Quote
Avatar for RDP Electrical Services Plus, LLC
RDP Electrical Services Plus, LLC
5.0(
21
)

Serving Madison, WV and surrounding areas

In business since 2009

Emergency services offered

Credit card accepted

"He installed the generator and serviced it for $5777.00 and everything was great. We then purchased a new home in January 2017 and he was able to move the generator and reinstall it at our new home for $1,016.00. It went perfectly. They were great people doing a great job because they knew what they were doing. The generator still works and we have had no problems. I would recommend him to everyone."
Recommended by100%of homeowners
Request Quote
Avatar for Empire Home Solutions LLC
Empire Home Solutions LLC
5.0(
5
)

Serving Madison, WV and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"Zach did a great job and completed everything he said he would. The price was comparable to others, with one added plus- no surprises! He charged exactly what he said he would. We are very happy with the results. Holes for butterfly anchors were visible and not filled, hence the 4.5, but this was in a garage and we easily puttied them after he finished. I would definitely recommend Empire Home Solutions and will call them again for future home upgrades."
Response time1 day
Recommended by100%of homeowners
Request Quote
Showing 1-10 of 28
Generator Install questions, answered by experts

With proper maintenance, a whole-house generator can last between 20 and 40 years. The specific lifespan depends on how often and for how long the generator is used, and some models may have their life expectancy rated in hours of operation. To maximize its lifespan, expect to spend around $150 to $300 per year for annual maintenance checks from a qualified technician. During these checks, a technician will inspect the engine filter, starting mechanism, fuel, lubrication, and coolant levels. Consulting your installer and choosing a low-impact fuel like natural gas or diesel can also help ensure your generator lasts as long as possible.

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

Whole-house generators can run continuously for extended periods, even for weeks at a time (around 400 to 500 hours), as long as they have a sufficient fuel supply. However, this type of extensive use will increase wear and tear and can shorten the generator's overall lifespan. During long periods of operation, it's important to check and refill the engine oil as needed, potentially as frequently as daily depending on the model. If your generator uses a fuel tank, ensure it is kept full to prevent unexpected shutdowns.

The amount of time a standby generator can run continuously is around 3,000 hours on average. However, standby generators can generally run indefinitely as long as they have a continuous fuel supply. Generators hooked up to a home’s natural gas supply are the best option for extended usage, as these won’t rely on a finite fuel supply based on how much you have in storage. Generators running on liquid propane or diesel won’t last as long, as these require fuel storage and regular refueling to stay running.

As a safety measure, you should always turn off the main breaker while operating your generator’s backup breaker. In addition, you should also switch off all appliance breakers so you don't have a power surge when the main breaker turns back on. And finally, turning off the main breaker prevents back-feeding, which endangers utility workers with the risk of electrocution. Back-feeding could also destroy the electrical circuits of your neighbors if they use the same power network.

The Madison, WV homeowners’ guide to generator installs

From average costs to expert advice, get all the answers you need to get your job done.

See all articles