Get matched with top generator install pros in Denver, PA

Q: Can I plug a generator directly into my house?

• <div><p>No, you shouldn&rsquo;t use an extension cord to plug a generator directly into your home without using a transfer switch. That&rsquo;s because systems like pumps and HVAC fans need a steady power source that might not be available directly from your generator alone. If you bypass the circuit breaker box, you risk damaging your electrical system, creating a risk of <a href="https://www.angi.com/articles/how-to-put-out-electrical-fire.htm">electrical fire</a> or electrical shock to you or any workers repairing lines on your local electrical grid.</p></div>

Q: What can I run on different generator sizes?

• <div><p>Here&rsquo;s what you can run with different wattages and types of generators:</p><p>Portable generator:</p><ul><li><p>2,000 watts can handle a large appliance like a freezer or refrigerator, plus a few smaller items like phones or computer chargers. </p></li><li><p>4,000 watts will keep two large appliances operating and a few smaller devices.</p></li><li><p>8,000 watts should power most essential appliances and other devices, including a sump pump, well pump, or your dishwasher.</p></li></ul><p>Partial to whole-house generator:</p><ul><li><p>20,000 watts and above will make it seem like your home&rsquo;s power is still on.</p></li></ul><p></p></div>

Q: How much does it cost to install a generator?

• <div><p>The typical <a href="https://www.angi.com/articles/how-much-does-it-cost-install-generator.htm">cost of a home generator</a> is around <b>$5,000</b>, but prices range from <b>$400 up to $13,000</b>, depending on a few factors. The most significant cost factor is the generator size, as larger generators that can support more square footage usually cost more. You can install an emergency backup generator for between <b>$500 and $2,000</b> or a partial-home generator for between <b>$2,000 and $6,500</b>. Whole-home generators usually total between <b>$5,000 and $13,000</b>, with some models climbing as high as <b>$18,000</b>.</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>

Q: How close can a transfer switch be to a generator?

• <div><p>Generally, you&rsquo;ll want to keep between <b>60 and 70 feet</b> between the generator and the transfer switch. There are a few reasons for this, including:</p><ul><li><p>The distance reduces the noise coming from the generator into your home.</p></li><li><p>It increases efficiency because you won&rsquo;t have a voltage drop from this short of a distance.</p></li><li><p>Prevents carbon monoxide poisoning: keep at least 15 feet between your generator and an open window. </p></li></ul><p></p></div>

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Verified Reviews for Generator Install pros in Denver, PA

*The Angi rating for Generator Install companies in Denver, PA 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 Denver, PA 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 January 14, 2026

Reviewed in September 2024
He did excellent work. Very very pleased. Would recommend him. 5 stars. Very personable and communicated well. Thank you. Will use him again!
Jason Excavating, LLC
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Reviewed in August 2024
We had a pondless water feature installed. We aren't real close to Annville but Bryan came out and listened to what we were envisioning. We are very happy with our waterfalls! They did a great job, and I highly recommend them.
Nye Guy Landscapes
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Reviewed in September 2023
Mr. Dean knows the code book inside and out! Very professional and very knowledgeable about all things electric. Good design and installation. Keeps my generator running and humming. Highly recommended.
S DEAN'S ELECTRIC
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Reviewed in November 2022
Capper Enterprises did the electrical wiring for my central air conditioner installation. They coordinated with the HVAC contractor, ran wiring, and connected to the breaker box as per their specifications. Work was completed on time and at a fair price. Technicians were both professional and...
Capper Enterprises LLC
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Reviewed in October 2022
Courteous professional service good quality work costly service anymore not just them but everyone as a consumer always skeptical how much room is there for a company to make profit and how much anyone can afford service calls
Benjamin Franklin Plumbing
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Reviewed in July 2022
My mother used this company for her generator installation and recommended them to me because she loved them so much. I also ended up hiring them. All went well as expected, start to finish the crew as awesome. No regrets.
Synergy Power Systems, Inc.
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Reviewed in August 2021
Professional service, excellent staff and courteous technicians! I needed a portable generator installed with a transfer switch installed for when power goes out, which happens frequently. The electrician gave me an inspection of my electrical service too at no charge! I have found my permanent...
Hughes Electrical Innovative Current Specialists
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Reviewed in August 2021
Hughes Electrical is a delightful company! I hired them to install an upgraded panel and electrical system, as my old electric was undersized. The electrician was personable and nice, I felt very comfortable having him in my home. I am very happy with the entire experience.
Hughes Electrical Innovative Current Specialists
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Reviewed in January 2021
The installers were outstanding, Their attention to detail and overall quality is A+. I am very glad I selected them and would do so again.
Solid Rock Flooring
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Reviewed in September 2020
David and his crew were extremely knowledgeable and professional every step of the process. We are incredibly happy with the doors, the results of the installation reflect Waldner Construction's knowledge and expertise. We are currently getting another quote from him for his windows based off of...
Waldner Construction
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