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Avatar for Aquarius Home Services
Aquarius Home Services
4.6(
260
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install+4 more

Serving Forest Lake, MN and surrounding areas

Approved

Super Service Award Winner

In business since 1987

Free estimates

Emergency services offered

"We had a humidifier installed. They installed it quickly and professionally. The installer Jimmy was very helpful and even gave me a couple pointers in regards to installing a wifi thermostat. I've always had great experiences with Kath/Aquarius home services and will definitely use them again."
Additional Photos
Additional Photos
Additional Photos
Our Team
Response time12 hrs
Response rate100%
7 neighbors recently requested a quote
Avatar for Professional Mechanical Services, LLC
Professional Mechanical Services, LLC
4.7(
31
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Forest Lake, MN and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Had a new ceiling fan installed in our front porch. Matt came and provided a quote with a couple options depending on what they found after the existing light fixture was removed. Communicated about their schedule and were very flexible with getting it on the calendar. Very happy with the process and end result!"
Electrical
Electrical
4 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Comfort by Design
Comfort by Design
4.6(
78
)
Fixed Generator - Install

Serving Forest Lake, MN and surrounding areas

Approved (Corporate)

In business since 1991

Free estimates

Emergency services offered

"After reading all of the horror stories people tell about HVAC companies, I feel a little out of place writing a raving positive review about the company I do business with. From the call to schedule a service to the salesperson helping us decide which stove best fits our needs to the technicians who install or service our equipment, every contact with Comfort by Design is like living in a commercial where everything goes right. The company always lives by its quotes, the technicians always go beyond the expected, and for the first time in my life I am not tempted to do the work myself to avoid the hassle and disappointment when the work isn't done well, quickly, or for the price I expected. If they keep this up, I won't know how to do anything for myself in a couple of years."
Solar Panel Installation
Geothermal Efficiency
Replace Wood Burning Fireplaces with a Gas
Solar Panel Installation
Don’t let winter catch you unprepared. Ensure your furnace is ready with expert maintenance and repairs.

+11

46 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for NEIGHBORHOOD PLUMBING HEATING & AIR CONDITIONING
NEIGHBORHOOD PLUMBING HEATING & AIR CONDITIONING
New to Angi
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Forest Lake, MN and surrounding areas

Approved

In business since 1947

Free estimates

Emergency services offered

From minor repairs to major installations, our team offers a range of services to ensure your home is comfortable and functional. We are skilled in various areas, including general maintenance, so you can count on us for all your home service needs.\n\nContact us today for reliable, professional, and quality home services. Join the community of satisfied customers who have trusted Neighborhood Plumbing, Heating, Cooling, A/C, and Electrical for their home service needs. We also offer financing options for your peace of mind. \n\nRemember, our family is here to take care of yours!

Panels
Panels
Panels
Panels
Response time5 days
Response rate100%
9 neighbors recently requested a quote
Avatar for Miller Clark Electric, LLC
Miller Clark Electric, LLC
4.8(
35
)
Fixed Generator - Install

Serving Forest Lake, MN and surrounding areas

In business since 2001

Free estimates

Credit card accepted

"Project was to install a ceiling fan. The response to my initial request was very quick and job was accepted right away. They were on time and able to do this installation quickly without a problem I would hire them again - absolutely!"
Our Work
Response time1 day
Response rate85%
Recommended by93%of homeowners
Redemption Electric, LLC
5.0(
4
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+3 more

Serving Forest Lake, MN and surrounding areas

In business since 2022

Free estimates

Credit card accepted

"They did an excellent job installing a new 240V outlet in my garage! We were able to easily schedule an appointment. They arrived to my house on time. As they were working they were extremely friendly and communicated proficiently. Once the project was finished everything looked great and the outlet works just fine. I would highly recommend for anyone needing a local electrician."
Response time2 days
Recommended by100%of homeowners
Avatar for Air Mechanical Inc.
Air Mechanical Inc.
5.0(
2
)
Fixed Generator - InstallFixed Generator - Repair

Serving Forest Lake, MN and surrounding areas

In business since 2021

Free estimates

Credit card accepted

"These folks replaced my furnace and installed a central air conditioning system at the same time. The intial contact, work estimate, and scheduling was easy for me to do and the manner in which I was treated was first class professional and very courteous. The crew who did the work (Brant B., Brad, Melissa) was top notch, worked diligently, produced a high quality installation, and completed the work in seven hours. It was an amazingly good experience for me and I high recommend Air Mechanical!"
Before and After
Roots in Drain
Light Commercial
Placing a unit for Senior Living
Heat Pump

+8

Recommended by50%of homeowners
Showing 1-10 of 16
Generator Install questions, 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.

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

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.

Sizing a generator is a careful process that requires calculating the electrical load of your entire house. You have to take into account every device you want to use and their wattage requirements, plus the wattage needed to start them, and look for a generator that can safely run all that at around 80% capacity.

In more practical terms, a small home can run on a 10,000-watt generator (and if you only want to power a few key appliances, much less than that). A mid-sized home may need something between 15,000 and 22,000 watts. Larger homes require 25,000 watts or more. 

To power a central air system during a power outage, the whole-house generator will need to be at least 5,000 watts, and this number will significantly increase for larger units. Check the specific wattage requirements of your AC unit to choose the right generator size. Consider consulting a generator installer to ensure your whole-house generator meets your electrical load needs.

The Forest Lake, MN homeowners’ guide to generator installs

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