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TRUSTED BY LANGLEY, WA HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon24
    Verified generator installs reviews

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

Avatar for Smart Electric, Heating & Air
Smart Electric, Heating & Air
4.9(
79
)
Portable Generator - InstallFixed Generator - InstallFixed Generator - Repair+1 more

Serving Langley, WA and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

"Excellent from beginning to end!! Joe and his team are truly professional, knowledgeable, easy to work with and kind. Two of my family members will be using Smart Electric for their generator installations."
13 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Skyline Electrical Services LLC
Skyline Electrical Services LLC
4.8(
52
)
Fixed Generator - Install

Serving Langley, WA and surrounding areas

Approved

In business since 2001

Free estimates

Credit card accepted

"I couldn't be happier with Skyline Electrical Services! They installed a new electrical panel, EV charging outlet, backup generator inlet, and an outlet for a tankless water heater. The workmanship was exceptional, even better than the original installation, and every breaker was accurately labeled. Communication was excellent, and they kept me informed throughout the project. The crew arrived on time, worked efficiently, and finished everything in one day. They coordinated seamlessly with another crew installing my furnace, AC, and water heater. Everything was left clean and tidy. Skyline wasn't the cheapest option, but I feel extremely good about the price I paid. Considering the outstanding workmanship, professionalism, and attention to detail, I believe I received exceptional value for my money. I highly recommend Skyline and wouldn't hesitate to hire them again!"
 Electric Vehicle
 Electric Vehicle
 Electrical Panels
 Electrical Panels
 Electrical Panels

+11

Response time3 days
Response rate100%
31 neighbors recently requested a quote
Avatar for EMC Electric, Inc.
EMC Electric, Inc.
4.7(
18
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Langley, WA and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"Benjamin Skinner did an excellent job of converting our old push button garbage disposal to a new “light switch” type. He also switched the circuit breaker to be compliant with current code. He’s a very good electrician."
Breaker Service
Our Team
EV Charger
Our Team
Outlet

+8

Response time10 hrs
Response rate94%
9 neighbors recently requested a quote
Cascade Lighting Services, LLC
5.0(
1
)
Fixed Generator - InstallPortable Generator - Install

Serving Langley, WA and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

We pride ourselves in exceeding customers and clients expectations. We take the time to really listen and understand the desires of our customers and clients, to make sure you are fully satisfied with the job. A true job well done. \n \nWe are a family owed business that has been in the Seattle area for over 20 years. \n \nOffice Hours: Monday - Friday 9:00 a.m. to 6 p.m. However our guys in the field have a flexiable schedule and can work nights and weekends.

Response time11 hrs
Recommended by100%of homeowners
Avatar for RAETHER MECHANICAL & ELECTRICAL LLC
RAETHER MECHANICAL & ELECTRICAL LLC
New to Angi
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Langley, WA and surrounding areas

Approved

In business since 2010

Free estimates

Credit card accepted

RAETHER MECHANICAL & ELECTRICAL LLC is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. \n\nWhen the heat quits, the AC struggles or an electrical problem shows up, you need the right service—not a maze of menus. Raether puts the most common repairs and upgrades within a tap or two, especially on mobile. Raether works with Mitsubishi Electric, Daikin, Goodman, Generac and Navien equipment for heating, cooling, standby power and efficient water-heating applications.\nWe look forward to working with you!

Logo
1 neighbors recently requested a quote
Avatar for Home Comfort Alliance
Home Comfort Alliance
4.7(
341
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Langley, WA and surrounding areas

In business since 1977

Free estimates

Emergency services offered

"Starting with the sales process, Nate was informative and great. Could've sold me a more expensive replacement system, but instead identifies how my current system cod be retrofitted with a heat pump. That sold me on G&S right there. Everything from the initial install review, the office staff working with my lender, to Izaak and the install and electrical teams, was punctual, informative and professional. I've had several bad experiences with other contractors, but I would confidently recommend G&S for any job and plan to use them again for a generator switch install. Good people with a good business. Thank you G&S!"
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Home Comfort Starts with Professional HVAC Installation.

+1

Response time1 day
Response rate100%
Recommended by91%of homeowners
Avatar for Renfro Electric
Renfro Electric
5.0(
6
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Langley, WA and surrounding areas

In business since 2012

Free estimates

Emergency services offered

Renfro Electric, LLC is a full-service residential and commercial electrical contractor based in Arlington, WA. Since 1998, we have provided exceptional service to homes and businesses in the local area, offering a wide range of installation and repair services. We are fully licensed and insured with decades of experience, so you can trust our team to complete your job with unparalleled quality. We never cut corners and we leave no stone unturned.

Additional Photos
Additional Photos
Additional Photos
Recommended by100%of homeowners
Avatar for Bayless Electric, LLC
Bayless Electric, LLC
5.0(
6
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business

Serving Langley, WA and surrounding areas

In business since 2014

Free estimates

Emergency services offered

Bayless Electric is a family owned and operated full service electrical contractor. We are proud to be a Power Pro Elite Generac contractor with over 3 decades of experience. We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Call Today! Yes we do offer Financing.

Cans/fans/step light
Can lights and fans
Stair lights
Response time4 hrs
Response rate88%
Showing 1-10 of 24
Generator Install FAQs, answered by experts

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.

Here’s what you can run with different wattages and types of generators:

Portable generator:

  • 2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. 

  • 4,000 watts will keep two large appliances operating and a few smaller devices.

  • 8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.

Partial to whole-house generator:

  • 20,000 watts and above will make it seem like your home’s power is still on.

If your home already has a grinder pump and you’re still noticing issues (like frequently clogged toilets and sinks), it could be time to upgrade your grinder pump. Start by checking your existing horsepower. If there are four or fewer people living in your home, using a 1/2-horsepower grinder pump should be sufficient. Larger households should consider investing in a 1-horsepower grinder pump to maximize wastewater removal efforts.

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. 

The average cost to install a home generator is $5,200, but total costs can range from $500 to $18,000 or more. The final price depends on several factors, including the generator's size, type, brand, fuel source, and the cost of labor and assembly. The generator's size is the most significant cost factor, as units that can power larger homes with higher energy demands cost more.

Cost breakdowns by generator type are typically as follows:

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

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

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

To ensure you get the right size unit for your needs without overpaying, consider hiring an electrician to calculate the electrical load of your essential appliances. It is also recommended to get at least three quotes from qualified installers to find the best fit for your budget.

The Langley, WA homeowners’ guide to generator installs

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