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Best generator install pros near Mill Valley, CA

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Top-Rated Generator install pros in Mill Valley - Updated Nov 2026

Avatar for Gridwise Electric
Gridwise Electric
5.0(
36
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Mill Valley, CA and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

"Had Gridwise install a transfer switch and inlet box for our portable generator. We lose power a few times a year during wind events and got tired of running extension cords everywhere. Michael handled the install and walked us through exactly how to connect and start the generator when the power goes out. He was patient with all my questions. Permit was pulled and inspection passed first try."
New Home Build Electrical
New Home Build Electrical
New Home Build Electrical
Construction Electrical
Construction Electrical

+66

2 neighbors recently requested a quote
Avatar for Gridwise Electric
Gridwise Electric
5.0(
16
)
Portable Generator - RepairFixed Generator - InstallFixed Generator - Repair+3 more

Serving Mill Valley, CA and surrounding areas

Approved

In business since 2025

Free estimates

Warranties offered

"We used Gridwise for a lighting install and I’m picky about finish details. Miguel did a nice job and the fixtures are straight, plates look clean, and nothing feels “patched.” They also helped us sort out switch groupings so it works in real life (not just on paper). They showed up when they said they would, and the place wasn’t left dusty afterward."
Junction box
Main panel
Framing phase
Construction Electrical
Construction Electrical

+3

27 neighbors recently requested a quote
Avatar for Sonoma Coast Electric, Inc
Sonoma Coast Electric, Inc
5.0(
7
)
Fixed Generator - InstallGenerator - Install - For BusinessPortable Generator - Install

Serving Mill Valley, CA and surrounding areas

Approved

In business since 2024

Free estimates

Warranties offered

"I had 2 ceiling fan/lights installed in the bedrooms. Installation included 2 new circular circuit boxes in each bedroom ceiling. In addition, I replaced the kitchen ceiling light with an LED fixture. The 2 workers were very polite and professional and worked quickly and efficiently, in addition to being respectful of my personal belongings."
Multimeter Test
100 amp Sub Panel
100 amp Sub Panel
Installing Unistrut
Stripping Wire

+3

Response time1 day
Response rate100%
5 neighbors recently requested a quote
Avatar for Christopher Robert Ceinar
Christopher Robert Ceinar
5.0(
15
)
Fixed Generator - InstallPortable Generator - Install

Serving Mill Valley, CA and surrounding areas

Approved

In business since 2023

Offers commercial services

"We needed to install an EV charger receptacle quite far from the electrical panel. Chris suggested leading individual wires through a conduit instead of simply using Romex, saying that heat characteristics are better. He also wanted to know what EV charger we were getting and asked for documentation. We also discussed other aspects of the work. His genuine interest and attention to detail made us choose him. At the end, we were impressed with the quality of the work he delivered and how easy it was to communicate with him. He charged about the average price for this work but delivered more than many other electricians would do."
Avatar for Golden Bay Electric
Golden Bay Electric
4.9(
29
)
Portable Generator - Install

Serving Mill Valley, CA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Overall experience was average. First day of installation was okay until I find out half of the house did not have power. Edgar came back the next day and explained the cause and fixed it with ease. Was getting push back about how everything was installed as it was and there shouldnâ t be any issues, well there was and he graciously came back and fixed the problem. I would definitely use this company in the future."
Response time2 days
2 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Bragg Home Services
Bragg Home Services
4.7(
47
)
Fixed Generator - InstallFixed Generator - Repair

Serving Mill Valley, CA and surrounding areas

Approved

In business since 1968

Free estimates

Small jobs welcome

"The installers were very sweet and professional. But I donâ t think I was made completely aware of how the exterior installation would look. The last 4 or 5 feet of the white pipeline are not covered and it looks unfinished and messy."
Response time2 days
Response rate100%
125 neighbors recently requested a quote
Warner Electric
5.0(
6
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Mill Valley, CA and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"Steve and his team have done a number of jobs for me from installing light fixtures to adding additional outlets in the bathroom which required going underneath the house. They are professional, timely, courteous, clean, reliable and reasonably priced!"
7 neighbors recently requested a quote
Recommended by100%of homeowners
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Showing 1-10 of 96
Generator Install FAQs, answered by experts

While natural gas generators are costly, they’re a great option for standby power due to the reliability of natural gas as a fuel source. Unlike other fuels, natural gas is delivered through underground pipes, making outages extremely rare and less likely to be affected by the elements. As long as the area isn’t prone to earthquakes, they offer an unlimited supply of natural gas that doesn’t degrade over time or require storage in tanks.

To reduce AC startup power for a whole-house generator, install a soft start kit or hard start capacitor, which lowers the initial surge by gradually ramping up the compressor. Using a smart load manager can also help by staggering startup loads, preventing a system overload and future costly repairs.

You can determine what size generator you need for a transfer switch by matching the switch to the largest outlet on your generator. Larger generators can power up to 10 circuits, while most 5,000-watt generators can provide power to six circuits. So, if your generator’s largest outlet is 30 amps, you’ll need a 30-amp transfer switch.

Natural gas and electricity rates vary significantly based on location, and pricing can change over time, too. It’s possible that in locations where natural gas is particularly inexpensive, it will cost less than grid-based electricity will. However, you should also factor in the generator’s initial costs and maintenance needs, as well as its noise level and if it can comfortably power all your home appliances.

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 Mill Valley, CA homeowners’ guide to generator installs

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