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Avatar for Driven Electrical Solutions
Driven Electrical Solutions
5.0(
7
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install

Serving Williamsburg, CO and surrounding areas

Approved

Free estimates

Credit card accepted

"Duncan came to our house to qoute on t he electrical installation of 22KW back up generator. We were impressed with his knowledge of the scope of the job. The qoute was quite reasonable and complete. When we were trying to find someone to prepare the slab and sight, Duncan stepped up and expanded the scope of the work to include site preparation. Duncan took ownership of the project, coordinating with the gas line contractor and inspectors. Communication was good throughout. At the end, Duncan and crew, restored the site landscaping to its original form. We are happy to recommend Driven Electrical Solutions for your electrical projects."
Panel Upgrade
Panel Upgrade
Panel Upgrade
Electrical Refresh
Electrical Refresh

+5

8 neighbors recently requested a quote
Recommended by14%of homeowners
Redrocks Roof and Solar LLC
4.1(
9
)
Fixed Generator - InstallGenerator - Install - For Business

Serving Williamsburg, CO and surrounding areas

Approved

In business since 2022

Free estimates

Warranties offered

"Really responsive and prompt, especially in the installation phase. We did have a couple of small hiccups, which in my mind a homeowner should expected on literally any remodeling project, and they were resolved quickly. Communication on final details like inspections could have been smoother, but overall the whole process was very clear, well managed, and well executed. Happy with the choice to go with Red Rocks."
Response time1 day
Response rate89%
Recommended by75%of homeowners
Avatar for Peak Home Performance
Peak Home Performance
3.4(
18
)
Fixed Generator - InstallPortable Generator - RepairFixed Generator - Repair+4 more

Serving Williamsburg, CO and surrounding areas

Approved (Corporate)

In business since 2019

Free estimates

Emergency services offered

"☆☆☆☆☆ dream team COMPANY! I had most contact with Julian throughout the job, but his partner and Electrician were JUST AS NICE. They had cloths on my floors, as they were in and out of my crawl space. They even left to get a particular component, specific for my install. No damage to home. There was no laughing or joking around. They were concentrated on install, measuring, calculating out loud between the three of them. No cussing or profanity, either. Julian was professional and explained everything to me, including why manual was left on unit, so when inspector came, it was there, as it couldn't be signed off without it. Thermostat looks great! He also knew a lot about furnaces, which is my next thing. *Beware of companies won't give you prices on ANYTHING and/or charge you estimate to come to your house... Another reason I picked PEAK HOME was their receptionists! Sweetest, most understanding ladies! If you need to install A/C, go with this company - definitely recommend!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+16

37 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Electrical Innovations LLC
Electrical Innovations LLC
New to Angi
Portable Generator - Repair

Serving Williamsburg, CO and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Electrical innovations provides electrical safety for families homes, and peoples businesses. We are a fully licensed and insured company who’s been in business since 2010. We are a family owned and operated business who strives for making families happy and satisfied returning customers.

Avatar for Persistence Electric LLC
Persistence Electric LLC
5.0(
19
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Williamsburg, CO and surrounding areas

In business since 2023

Free estimates

Emergency services offered

"Mr Jess is absolutely amazing 👏. He helped me complete the electrical needs in my entire basement. He is not just a great electrician but a great person. He is ingtrual,, always on time, respectful, and a joy to be around while doing his job. I will always refer future client to Jess.👍🏾😇"
AMC THEATER
AMC THEATER
AMC THEATER
AMC THEATER
AMC THEATER

+12

Response time3 hrs
Response rate93%
6 neighbors recently requested a quote
Custom Maintenance Experts
4.9(
10
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Williamsburg, CO and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

"Bradley is very professional and very knowledgeable and on time. He was also able to get started on our house right away when others said it would be weeks. Our breaker box was very old and the wiring in our house was a mess and it needed replaced and repaired. We only had a couple of electrical outlets inside the house and we had no power to the bathroom. We also wanted him to also install new ceiling lights and we wanted him to add new outlets. Bradley replaced the old fuse box with a new fuse box and he added new outlets and replaced the old ceiling lights with new ones. He also got power restored to the bathroom. When he was done everything worked like brand-new and his rates were by far the best that we could find. It was the first time ever using an electrician that we felt like we didn't get ripped off."
Electrical Project
Electrical Project
Electrical Project
Electrical Project
Electrical Project

+70

Recommended by100%of homeowners
Showing 1-10 of 22
Generator Install questions, answered by experts

A portable generator can supply power to selected appliances and circuits in a home, but it's generally not designed to handle the entire household's electrical needs simultaneously. Portable generators have limited wattage capacity, so they are only designed to power essential devices and electronics temporarily until local power is restored. If your power needs outweigh the capabilities of a portable generator, consider installing a whole-home generator instead.

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.

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. 

No, you should never plug a generator directly into a wall outlet in your house. This practice is extremely dangerous, often illegal, and can cause "back-feeding," where power from the generator flows back into utility lines, creating a life-threatening hazard for utility workers. It can also damage your home's electrical system, including appliances like pumps and HVAC fans. If the main power is restored while the generator is connected, it can destroy the generator and cause an electrical fire. To safely connect a generator, you must use a professionally installed transfer switch or an interlocking kit, which prevents back-feeding by disconnecting your home from the utility grid before the generator provides power.

Costs range from $500 to $2,500, depending on generator type and installation complexity.

The Williamsburg, CO homeowners’ guide to generator installs

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