How do I know what size of whole house generator to choose?

• <div><p>Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. <a href="https://www.angi.com/articles/electrical-load-calculation.htm">Calculate your home’s electrical load</a> based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.</p></div>

Get matched with top generator install pros in Cedarville, MI

Q: How do generator specifications and installation requirements impact the overall cost?

• <div><p>Costs depend on generator type, labor, and additional wiring or transfer switch requirements.</p></div>

Q: What size generator do I need for a 2,500-square-foot house?

• <div><p>A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.</p></div>

Q: Can a 10,000-watt generator run a central AC unit?

• <div><p>A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.</p></div>

Q: What happens if my whole-house generator is too small for my AC?

• <div><p>An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home&rsquo;s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.</p></div>

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Verified Reviews for Generator Install pros in Cedarville, MI

*The Angi rating for Generator Install companies in Cedarville, MI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

*The HomeAdvisor rating for Generator Install companies in Cedarville, MI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Generator Install needs.

Last update on July 10, 2026

Reviewed in July 2026
Excellent customer service, a virtual assistance diagnosis was made on my dishwasher, connection for parts, provision of part numbers and cost of parts. I was able to then get a service person in my area and be more comfortable informing the service company about my concerns. We may need to...
Neli Virtual Appliance Repair
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Reviewed in November 2025
Hired JPS Tree service to clear some land & trim a plaza we are running. Very pleased with the results. I had a ver strict time frame and they were able to adapt to the requiremnents without any issues.
JPS TREE SERVICES LLC
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Reviewed in July 2024
Alex and Angela were a great crew to work with and they did an excellent job. Ben was a great help in designing our new deck.
Signature Home Pros
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Reviewed in May 2023
We will refer and continue to work with this company again. Extremely polite, on time, cleaned up everything, and we were left with the kitchen of our dreams. Tile work was perfect. Very very pleased. Very professional ?
Ferarri tile
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Reviewed in January 2023
They did a great job. Very professional. Showed up on time. Explained a few things that needed fixing. Definitely would recommend them.
L&A Home Inspections, LLC
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Reviewed in May 2022
Fast response. Did good job and cleaned up afterwards.
Grimes Gutter Cleaning
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Reviewed in February 2022
I want to thank you so much for working with me on my bedroom closet. You are so organized, efficient and focused. Thank you for listening to me and for going above and beyond transforming my space.
Agent Annamarie
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Reviewed in June 2021
Antonio is a pleasure to work with. Heâ s very professional, as is his crew. They were all very nice and did great work. Antonio answered texts or returned phone calls very quickly. Heâ s very knowledgeable and takes pride in the job done. I highly recommend AM Painting!
AM Painting, LLC
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Reviewed in May 2021
Great people to work with! The owner explained everything well. Highly recommend
Apex Commercial Services
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Reviewed in December 2020
Mike did a great job! Transformed my pool deck and Chicago brick to looking like new!
Pressure Precision Cleaning Services
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Find Generator install pros in Cedarville

UP Solar and Electric

5.0(

)

Fixed Generator - InstallPortable Generator - Install

Serving Cedarville, MI and surrounding areas

In business since 2022

Free estimates

Credit card accepted

"Prompt service, on time reasonable pricing"

Response time6 hrs

Recommended by100%of homeowners

Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+2 more

Serving Cedarville, MI and surrounding areas

In business since 2022

Free estimates

Credit card accepted

"yes he was very good, he knew what he was doing and got the job done in a timely manner and cleaned up after he was done."

Response time2 days

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S&G ELECTRICAL CONTRACTORS

New to Angi

Fixed Generator - InstallPortable Generator - Install

Serving Cedarville, MI and surrounding areas

In business since 2024

Free estimates

Credit card accepted

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! Book with us online or feel free to give us a call today!\n

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Wayne's Electrical Services

New to Angi

Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+1 more

Serving Cedarville, MI and surrounding areas

In business since 1995

Free estimates

Wayne's Electrical Services, is a fully licensed and insured electrical company that can assist you with all of your electrical needs. We carry over 22 years of experience. We strive to meet and exceed all of your expectations and look forward to doing business with you.

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Generator Install questions, answered by experts

Generators are usually sized by running watts and starting watts. Ideally, you’ll want a generator that can offer both the necessary running watts and starting watts for everything you need to power without going beyond 90% of its capacity. Calculate your home’s electrical load based on the breakers in your home or adding up the appliance and lighting needs of connected rooms.

Costs depend on generator type, labor, and additional wiring or transfer switch requirements.

A home that is 2,500 square feet will likely need a 20kW to 25kW generator. Consult your local generator installer to confirm the generator size needed to power your home before purchasing a new one. Be sure to consider how much power your necessary devices need to run.

A 10,000-watt generator can run a small to mid-sized central AC unit (typically up to 3 tons or 36,000 BTU) along with a few other appliances. However, larger AC units or additional loads will require a bigger generator. Consult a local generator installer to ensure you add the correct size generator to your home.

An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home’s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.

The Cedarville, MI homeowners’ guide to generator installs

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

See all articles

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