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Avatar for Deshko Services LLC
Deshko Services LLC
5.0(
7
)
Fixed Generator - InstallFixed Generator - RepairGenerator - Install - For Business+2 more

Serving Wallingford, PA and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"We had personal EV charging station installed by this business' technician. He is very professional, explained all options how to get wires from main electric panel to the other side of the house where it would be convenient for us to charge the car. Provided all required materials and get job done fast and safely, made sure everything works properly."
2 neighbors recently requested a quote
Avatar for WM Henderson Plumbing & Heating
WM Henderson Plumbing & Heating
4.1(
42
)
Fixed Generator - InstallFixed Generator - Repair

Serving Wallingford, PA and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"Lee Barnes was very knowledgeable explained all aspects of new hvac system install. And answered all our questions. Provided good options and recommendations based on our requirements. promptly scheduled install on our time line. The installation crew was on time and very professional. They made sure the property was kept clean during and after install."
Henderson tech looking at electrical box
5 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Horizon Services, LLC (DE)
Horizon Services, LLC (DE)
3.8(
1,298
)
Fixed Generator - InstallFixed Generator - RepairPortable Generator - Install+1 more

Serving Wallingford, PA and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

Experience The Horizon Difference.\n\nOn-Time Service. Up-Front Pricing. And The Job Done Right and Clean the First Time. GUARANTEED!\n\nHorizon Services is the region's largest and most well respected plumbing, heating and air conditioning company, with nearly 600 employees serving tens of thousands of homeowners throughout Delaware, Southeastern Pennsylvania, Southern New Jersey, and Northeastern Maryland. After a quarter of a century in business, Horizons Services remains fully committed to setting the industry standard for customer service, installation, and focusing on things that are important to busy homeowners: respect for their time, their home and their property; up-front pricing, and an unconditional 100% money back guarantee.\n

Recommended by89%of homeowners
Avatar for Simmz Electrical
Simmz Electrical
5.0(
1
)
Portable Generator - Repair

Serving Wallingford, PA and surrounding areas

Approved

Emergency services offered

Small jobs welcome

"Joe from Simmz Electrical was very skilled, charged a fair price and was great to work with. He did a wonderful job, worked very carefully and was very neat. He communicated with us quickly; is very reliable and prompt. We felt comfortable with him in our home; he is now our go to guy for anything electrical. Lucky find"
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Generator Install questions, answered by experts

If you have a transfer switch properly installed, the generator and main electrical power cannot feed the system at the same time. However, you should still shut off the power at your main circuit breaker panel before activating the generator. If you do that, you’ll simply need to shut off the generator and reset your circuit breaker once the local power comes back on.

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.

While standby generators provide essential backup power, they can fail when you need them most due to lack of maintenance, fuel supply issues, dead batteries, electrical problems, or improper installation. To avoid costly failures, professional installation and regular maintenance are crucial. Licensed technicians ensure safety, uphold warranty requirements, comply with regulations, and provide expert servicing.

Natural gas generators are designed to run for extended periods of time, such as power outages during a natural disaster. Since there’s no limit to the supply of natural gas, they don’t need to stop for refills. However, generators do need maintenance, including pauses to check and add oil. Constantly running them will also cause a lot more wear and tear, leading to a shorter lifespan.

Yes, in some locations, it is required by the National Electric Code (NEC) to have a transfer switch installed for electrical emergencies. In addition to following electrical code, generator transfer switches ensure your home is fully protected during a power outage. By switching the power from the main breaker to the generator breaker, you can seamlessly operate your HVAC, lights, appliances, devices, and more during an emergency. 

The Wallingford, PA homeowners’ guide to generator installs

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