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Top-Rated Generator install pros in Pontiac - Updated Nov 2026

Avatar for Mr. Electric
Mr. Electric
4.5(
42
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business

Serving Pontiac, MI and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"Very happy with my experience with Mr. Electric. I have used them to put in my whole house generator. They were great. Sam Stone is awesome. He showed up on time and upgraded our panel box. I found him to be very professional and knowledgeable. I would highly recommend this company and Sam Stone for all electrical services"
Response time8 hrs
12 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Electrician Near Me LLC
Electrician Near Me LLC
5.0(
15
)
Generator - Install - For Business

Serving Pontiac, MI and surrounding areas

Approved

Emergency services offered

Warranties offered

Small jobs welcome

"Andrew installed new exterior outlets for my outdoor cooking toys, added ceiling lights to our basement, and added an outlet in one of our bedrooms. I'm very pleased with everything. Looking forward to working with Andrew again."
Service panels
Wholehouse Generator
New Panel
New construction
7 neighbors recently requested a quote
Avatar for Tanner Vogras
Tanner Vogras
4.7(
3
)
Portable Generator - Repair

Serving Pontiac, MI and surrounding areas

Approved

In business since 2020

Free estimates

Customers say: Quick response

I like to think of my self as the best problem solver around. I'm sure there's a million ways to get the job done. But I only want to make sure its done right, The first time. \nI've been doing maintainece repairs for about 2 and half years now. I started off on my own path a couple of weeks ago and I've been off to what seems like a great start. I would be more than willing to see what kinda project you have to throw at this novice repair man.

Response time2 days
Recommended by66%of homeowners
Avatar for Don's Electric Service
Don's Electric Service
4.6(
195
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Pontiac, MI and surrounding areas

In business since 1989

Free estimates

Emergency services offered

"I called Don and inquired about getting my RV Onan 4000 generator repaired. It would start then run a few minutes and shut down. Don ask a few questions and quickly guessed it to be a failing fuel pump. He said he had to the parts in stock and could come to my RV site and repair it the next morning.....THE NEXT MORNING ! ! Most of the places I called on my journey said they could repair it but it couldn't be dome for two weeks AND then if it needed parts I had to wait another two weeks. So Don, shows up and within 1.5 hours he had it running perfectly, including a full service on it to boot. Don is the MAN. You will not go wrong with Don's Generator Service."
Additional Photos
Additional Photos
Additional Photos
Energy Efficient & LED Lighting
Flat Screen T.V. Mounting

+10

Response time6 hrs
Response rate100%
Recommended by92%of homeowners
Avatar for Sweetwater Electric
Sweetwater Electric
4.4(
106
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Pontiac, MI and surrounding areas

In business since 2005

"Sweetwater Electric installed my Generac whole house generator. Part way through the installation, we discovered a problem with the landscaping and placement of the generator. Sweetwater was patient while we worked out the issue and resumed work the day after the landscaper left. Alan and Thomas worked well together as a team and finished the installation without a problem. I would highly recommend them for your Generac, or general electrical, work. They are conscientious, hardworking, amenable and clean up after the job is complete. What more could you ask for?"
Response time3 days
Response rate90%
2 neighbors recently requested a quote
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Generator Install FAQs, answered by experts

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.

Generally, you’ll want to keep between 60 and 70 feet between the generator and the transfer switch. There are a few reasons for this, including:

  • The distance reduces the noise coming from the generator into your home.

  • It increases efficiency because you won’t have a voltage drop from this short of a distance.

  • Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. 

DIY is possible for basic setups. Professional installation ensures safe and proper electrical connections.

It’s usually better to repair your generator if it isn’t working properly, as it will typically be much more affordable and should yield similar results. Generator repairs cost around $300 on average, while installing a new whole-house generator costs around $5,000 on average. The only exception is if you know your generator is reaching the end of its useful life, usually between 30 and 40 years. If you have an older generator, you could face multiple repairs in the coming years, which might mean that a full replacement will be more cost-effective over time.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

The Pontiac, MI homeowners’ guide to generator installs

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