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Avatar for Beltway Electric Services llc
Beltway Electric Services llc
4.5(
32
)

Serving Prince Frederick, MD and surrounding areas

Approved

Super Service Award Winner

In business since 1983

Free estimates

Emergency services offered

"Outstanding service. I originally needed an electrician to determine why I lost power to ½ my house. What Jody uncovered was a defective circuit breaker and my main switches overheating and in the process of melting down. He was able to change out the panel and install new breakers immediately. I’m grateful for the prompt response by Gene and the professionalism of Jody and Brian."
Response time9 hrs
Response rate99%
5 neighbors recently requested a quote
Calvert Generator
New to Angi

Serving Prince Frederick, MD and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

Calvert Generator is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.\n

Response time10 hrs
1 neighbors recently requested a quote
Avatar for Paradise Construction
Paradise Construction
4.4(
173
)

Serving Prince Frederick, MD and surrounding areas

In business since 2003

Free estimates

Emergency services offered

"Awesome! I wanted to do a heavy-up at my new home. I shopped around and got quotes from several companies incl Tim. I chose Paradise because of the price, responsiveness, and professionalism that Tim conducted himself. The job called for significantly more work than expected because of my desire to eventually add a backup generator, Tim made sure that I would not need to reinvent the wheel later and installed the right equipment to meet my future needs. During the course of his work I decided to add several additional outlets and discovered a mis-wired light. He took care of all of the work in short order. Tim is officially my go-to electrician."
Recommended by85%of homeowners
Avatar for Dynatemp Inc
Dynatemp Inc
4.0(
148
)

Serving Prince Frederick, MD and surrounding areas

In business since 1980

Emergency services offered

Credit card accepted

"Very professional service.  The sale person came to verify the scope of work and provided us with a detailed quote. We scheduled the installation soon after. We had only a minor issue, becuase when the technical crew came in they realized that more work was needed (but no change in the quote). We rescheduled the installation a week after and everything went very well. The sale person remained our point of contact before, during and after the installation and he performed a follow up visit to make sure everything was fine. The technical crew was also very professional.  I would reccomend them for sure.
"
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+3

Recommended by86%of homeowners
Avatar for Mason Electrical Services
Mason Electrical Services
4.3(
12
)

Serving Prince Frederick, MD and surrounding areas

In business since 2010

Emergency services offered

Credit card accepted

"It went very well.  Tony is very responsive, courteous, and goes out of his way to make things convenient for the customer.  Not only is he very competent and thorough in his work, but he also  did a lot of the leg work, picking things up at the electric supply store, returned a couple things that I had incorrectly purchased there in my own trips prior to hiring him, and even went there on my behalf for a bed lamp that needed a new contact.  He disconnected it, brought it to the store, took a trip back to the store a week later to pick it up, and reinstalled it for me.  Tony could have applied a trip charge for each of the many visits he made to my place but didn't.  He also took the time to explain options, solutions, and even gave me a bit of free schooling in electrical work.  I highly recommend him and his business.


"
Recommended by83%of homeowners
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Generator Install questions, answered by experts

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. 

It is safe to run a generator continuously, but you must follow safety protocols to ensure personal and home safety. Read the manufacturer’s instructions for specific recommendations, but the general recommendation is to turn generators off overnight or when you’re away from the house. Overworked generators can pose a fire hazard and if your generator is not in a well-ventilated area, running it continuously could lead to carbon monoxide poisoning.

Homeowners can often access federal tax credits, such as the Investment Tax Credit (ITC), which covers a percentage of installation costs. Many states and utilities offer additional rebates, grants, or performance-based incentives. These programs can significantly lower your upfront investment. Check the Database of State Incentives for Renewables and Efficiency (DSIRE) or contact your local energy office for current offers.

While diesel is relatively stable, it won’t last nearly as long as propane and you may have to replace it if it sits unused for too long. Diesel can sometimes struggle to work efficiently or start engines during especially cold weather, so it’s not the best choice for every climate. Compared to fuels like propane and natural gas, diesel generators tend to be noisier and create more exhaust, which isn’t always ideal for home use.

The cost to install a whole-house generator averages $5,200, with a typical price range of $1,500 to $8,900. However, total costs can vary from $400 for a small portable unit to over $18,000 for a large-capacity system. The most significant cost factor is the generator's size and capacity, but other variables include the brand, fuel type, and labor for assembly and installation.

Generator costs can be broken down by type:

  • Portable or Emergency Backup Generators (1kW–7.5kW): $500 to $2,000

  • Partial-Home Generators (9kW–20kW): $2,000 to $6,500

  • Whole-House Generators (22kW–48kW): $5,000 to $18,000

To avoid paying for more power than you need, consider hiring an electrician to calculate the electrical load for your essential appliances. It is also recommended to get at least three quotes to find the best deal for your specific needs and budget.

The Prince Frederick, MD homeowners’ guide to generator installs

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