Get matched with top generator install pros in Horsham, PA

Q: How do I know what size generator I need?

• <div><p>When <a href="https://www.angi.com/articles/what-size-generator-do-i-need.htm">choosing the right size generator</a> for your needs, consider a few items to help calculate the wattage you&rsquo;ll need. Start by determining which household items and appliances you want to power, and then add the wattages together. Check out the wattage of these essential appliances:</p><ul><li><p>Refrigerator: 600 watts</p></li><li><p>Large dehumidifier: 700 watts</p></li><li><p>Large window air conditioner: 1,400 watts</p></li><li><p>Water heater: 3,000 watts</p></li></ul><p>Running home appliances like these requires a partial or whole-house generator. A portable generator may be enough to power your home if you only plan to keep a refrigerator and freezer running. </p></div>

Q: Can a natural gas generator work without electricity or in a power outage?

• <div><p>Yes, natural gas generators can work without electricity. Natural gas generators are a common type of backup or whole-house generator that operates when the electrical grid isn&rsquo;t working. The trick is using a <a href="https://www.angi.com/articles/cost-install-generator-transfer-switch.htm?entry_point_id=33797025">transfer switch</a> (which usually needs to be installed with the generator) that safely switches the home electrical system from the power grid to generator power when needed.</p></div>

Q: What size generator do I need for a 1500-square-foot house?

• <div><p>A 1,500 square foot home will likely need a 15kW to 20kW generator. When deciding on whole-house generator size, add up the <a href="https://www.angi.com/articles/how-many-watts-house.htm">total wattage</a> of the devices that you&rsquo;d like to continue running during a power outage. That way, you can ensure you purchase a generator that can power your necessary appliances or medical equipment during an electrical emergency.</p></div>

Q: How much horsepower do I need?

• <div><p>If your home already has a grinder pump and you&rsquo;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.</p></div>

Q: How long does it take to set up utilities?

• <div><p>Setting up utilities on a vacant property usually takes at least a few months, or between 6 weeks to 16 weeks. This process requires working with the local planning and zoning department, hiring a building contractor or engineer to design the utility layout, securing permits, laying the lines, and connecting the utilities.</p></div>

There are 17 highly-rated local generator install pros.

Verified Reviews for Generator Install pros in Horsham, PA

*The Angi rating for Generator Install companies in Horsham, 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 Horsham, 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 October 25, 2025

Reviewed in October 2024
As a general contractor, i have multiple fencing and railing needs, Rapco never disappoints. They have done all my projects, from wood/vinyl/aluminum fence, to deck and stair rails, even into concrete. I also refer them to all friends and family. They are fast efficient and always cost effective.
Rapco Fence & Railing LLC
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Reviewed in August 2024
Tony has put in new outside fixtures, put in recessed lighting, added ceiling fans, put in a generator, etc. He does great work!!!
Piney Power Electric, LLC
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Reviewed in February 2023
What an incredible company!! Had 2 new Bryant furnaces installed by them. My home is so quiet and comfortable!! Amazing customer service!! Gene goes above and beyond!! Nice to see such a well rounded company in every aspect!!! A leader in this area!!
Davis Home Services, LLC
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Reviewed in August 2022
Excellent. they are fast efficient and did not overcharge the customer. They did it very quickly. Sent 2 tech and repaired the problem for 15 mins. They were very nice and cleaned generally very good.
Fixabit Digital Solutions LLC
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Reviewed in February 2017
They did a nice, timely and professional job, at a fair price. (Didn't try to sell additional "arborvitae" services that some companies try to pressure customers with.) Also, disposed of other fallen branches in yard at no extra charge. Weldon's has been servicing the South Jersey area for...
Weldon's Tree Service
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Reviewed in December 2014
While the idea generations were good, you don't actually get firm design plans you can use to then complete a project. That is extra, so it seems to be a bit pricey for what you ultimately do get in the end. Next time I would probably not offer as much prize money knowing this is how it works.
Arcbazar Inc
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Reviewed in June 2014
This company comes weekly to cut grass. They also do general maintenance on the property ground. They are punctual and dependable. I would highly recommend them for all landscaping work.
WINTHROP LANDSCAPING
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Reviewed in April 2013
I contacted the swing set man for a quote. He gave me a great quote, but then never got back to me to schedule an installation date. I contacted him via email 2 additional times and have not heard back. I know things come up in life, and overall I am understanding if he is busy, but I do wonder...
Swingset Man
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Reviewed in February 2013
The owner, Mark, came originally to give us a quote for a back up whole house generator. He was very nice and gave me his phone number to call with any questions. A few days later, I was trying to unhook my leaky outside hose to prevent it from freezing, but was unable to. I thought to call him!...
Sovereign Electric
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Reviewed in August 2012
Since the installation, I watched my heating and air conditioning bills very closely and they have, in fact gone down in general 30% since last season, even with this extremely hot summer. The capacitor outside did blow out at one point, but they were able to come back and fix it within a day...
ALBER SERVICE COMPANY
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