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  • Average homeowner rating star icon4.7
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  • Verified reviews icon949
    Verified electrical services reviews

Find Electricians in King Of Prussia

Avatar for Lights On Electric

Lights On Electric

203 Lakeside Drive
4.80(
5
)
Approved Pro

Lights On Electric

203 Lakeside Drive
4.80(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
249 local quotes requested

Lights On Electric is a residential electrical company, specializing in emergency services. Our electricians have decades of experience completing services which range from partial power outages, to light switch and car charger installation. We offer a diverse range of services tailored to meet the unique needs of every customer. We take a personalized approach to each project. We work closely with our clients to understand their vision, preferences, and budgetary requirements. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

"Aside from a wire being a little loose from reconnecting my solar panel everything went great. The staff was great and polite"

Jerome L on August 2025

Lights On Electric is a residential electrical company, specializing in emergency services. Our electricians have decades of experience completing services which range from partial power outages, to light switch and car charger installation. We offer a diverse range of services tailored to meet the unique needs of every customer. We take a personalized approach to each project. We work closely with our clients to understand their vision, preferences, and budgetary requirements. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

"Aside from a wire being a little loose from reconnecting my solar panel everything went great. The staff was great and polite"

Jerome L on August 2025


Avatar for John Gambino Electric

John Gambino Electric

3832 Miller Rd
5.00(
23
)
Approved Pro

John Gambino Electric

3832 Miller Rd
5.00(
23
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
122 local quotes requested

With over 35 years of experience, the master electrician team at John Gambino Electric are more than qualified to take care of all your electrical needs - and much more! From whole house rewiring projects to installing your new, shiny appliance, no job is too big (or too small) to handle. Expert precision and craftsmanship, paired with a courteous and respectful company policy, we stay flexible to get the job done without disturbing your daily life schedule and leave your home just as clean as we found it - sometimes cleaner! Our professionally licensed team communicates with you during the whole process to assure the project is done on time, on budget, and most importantly, done right! Call us today at (484) 994-1030

"Easy to communicate with, timely, and reasonable price. Would definitely use in the future."

Leah L on December 2023

With over 35 years of experience, the master electrician team at John Gambino Electric are more than qualified to take care of all your electrical needs - and much more! From whole house rewiring projects to installing your new, shiny appliance, no job is too big (or too small) to handle. Expert precision and craftsmanship, paired with a courteous and respectful company policy, we stay flexible to get the job done without disturbing your daily life schedule and leave your home just as clean as we found it - sometimes cleaner! Our professionally licensed team communicates with you during the whole process to assure the project is done on time, on budget, and most importantly, done right! Call us today at (484) 994-1030

"Easy to communicate with, timely, and reasonable price. Would definitely use in the future."

Leah L on December 2023


Avatar for BRAD BROWN ELECTRIC

BRAD BROWN ELECTRIC

730 E RAILROAD AVE
4.94(
224
)
Approved Pro

BRAD BROWN ELECTRIC

730 E RAILROAD AVE
4.94(
224
)
Approved Pro
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
19 years of experience

Our focus at Brad Brown Electric is to deliver the highest standard of electrical services to residential customers. Our work is precisely planned, efficiently executed, and neatly completed with as little impact as possible on your home. We provide estimates on site to give the best recommendation to give you wiring with integrity, which includes a small fee. Call us at 610-955-9622 to set up an appointment.

"Brad Brown & team are amazing. I hired Mr. Brown for a challenging job at my 1950's home and he came thru 100%. His creativity & attention to every minute details was awesome to observe. He was quick to come out to our home, give us an estimate on the spot, kept in touch along the way as he waiting for special parts he needed to order, and showed up on time on the promised date. I would recommend Brad Brown without hesitation to friends and family. I will hire him without a doubt next time I need electrical work done."

Alfredo B on June 2025

Our focus at Brad Brown Electric is to deliver the highest standard of electrical services to residential customers. Our work is precisely planned, efficiently executed, and neatly completed with as little impact as possible on your home. We provide estimates on site to give the best recommendation to give you wiring with integrity, which includes a small fee. Call us at 610-955-9622 to set up an appointment.

"Brad Brown & team are amazing. I hired Mr. Brown for a challenging job at my 1950's home and he came thru 100%. His creativity & attention to every minute details was awesome to observe. He was quick to come out to our home, give us an estimate on the spot, kept in touch along the way as he waiting for special parts he needed to order, and showed up on time on the promised date. I would recommend Brad Brown without hesitation to friends and family. I will hire him without a doubt next time I need electrical work done."

Alfredo B on June 2025


"Dan did a terrific job. He was extremely thorough and explained everything that he was doing in clear, understandable language. In addition, his pricing was extremely fair for the size of the job. I would not hesitate to hire him again for any electrical needs and have already recommended him to friends and family."

Dennis F on June 2025

Dewy Electric LLC provides general Electrical services for Residential and Commercial Projects. We are family owned and operated we focus on quality affordability and great customer service. Give us a call to get your next project started.

"Dan did a terrific job. He was extremely thorough and explained everything that he was doing in clear, understandable language. In addition, his pricing was extremely fair for the size of the job. I would not hesitate to hire him again for any electrical needs and have already recommended him to friends and family."

Dennis F on June 2025


"It was easy work for him"

Bryan M on October 2024

Quality service, affordable prices, quick response. Panel upgrades, panel swaps, service upgrades (100-200amp), EV chargers, rewires, outlet and switches install, under cabinet lights, recessed lights, ceilings fans, and CCTV

"It was easy work for him"

Bryan M on October 2024


Avatar for A F L Electric

A F L Electric

PO Box 805
4.67(
6
)
Approved Pro

A F L Electric

PO Box 805
4.67(
6
)
Approved Pro
Customers say: Quick response
49 local quotes requested
35 years of experience

A.F.L. Electric is a small growing family owned business serving Bucks, Montgomery, Delaware and Chester counties in Pennsylvania . We are a licensed and insured contractor with master electricians who are engaged in on going training and continued hours of education to ensure that A.F.L. Electric brings the most qualified service to its customers. Our 23 years in business has brought the company to be experts in the Residential, Commercial and Industrial sectors of electrical contracting. Our one on one interaction with our customers starts with the motto that we answer our phones, and we do!

"Wonderful. We were so impressed with them!! Very professional!"

Joan D on October 2024

A.F.L. Electric is a small growing family owned business serving Bucks, Montgomery, Delaware and Chester counties in Pennsylvania . We are a licensed and insured contractor with master electricians who are engaged in on going training and continued hours of education to ensure that A.F.L. Electric brings the most qualified service to its customers. Our 23 years in business has brought the company to be experts in the Residential, Commercial and Industrial sectors of electrical contracting. Our one on one interaction with our customers starts with the motto that we answer our phones, and we do!

"Wonderful. We were so impressed with them!! Very professional!"

Joan D on October 2024


Avatar for Mr. Electric Of Lancaster County

Mr. Electric Of Lancaster County

131 Main St
4.82(
98
)
Approved Pro

Mr. Electric Of Lancaster County

131 Main St
4.82(
98
)
Approved Pro
Customers say: Quality work
54 local quotes requested
26 years of experience

Home health begins with top-notch electric care. At Mr. Electric® of Lancaster County our electricians will make sure your space operates at its peak performance level. We will help you upgrade and improve your space, so it is more energy efficient and secure. We specialize in diagnosing, repairing and installing electrical systems for local homes and businesses in Lancaster, Ephrata and Elizabethtown. Mr. Electric of Lancaster County provides 24-hour service to Lancaster County, so you’re never left in the dark. Our friendly electricians will give professional recommendations to lighten up your life and wallet.

"I had a federal pacific panel replaced. The technician and work were professional. However, I explained to the technician that I lost power in a large section of wall. After the job was complete, I found I still didn’t have power in the wall. Now I’m being told it is a separate job and cost. An explanation before having the work done about it being a separate problem and needing additional work would have been very helpful. All I’m told now is they can come out for a service call which is $212 plus whatever the issue is. This was a miscommunication error on Mr. Electrics side. I informed the tech about the problem and there was no testing on the wall afterwards. Very disappointed."

Brandon H on March 2024

Home health begins with top-notch electric care. At Mr. Electric® of Lancaster County our electricians will make sure your space operates at its peak performance level. We will help you upgrade and improve your space, so it is more energy efficient and secure. We specialize in diagnosing, repairing and installing electrical systems for local homes and businesses in Lancaster, Ephrata and Elizabethtown. Mr. Electric of Lancaster County provides 24-hour service to Lancaster County, so you’re never left in the dark. Our friendly electricians will give professional recommendations to lighten up your life and wallet.

"I had a federal pacific panel replaced. The technician and work were professional. However, I explained to the technician that I lost power in a large section of wall. After the job was complete, I found I still didn’t have power in the wall. Now I’m being told it is a separate job and cost. An explanation before having the work done about it being a separate problem and needing additional work would have been very helpful. All I’m told now is they can come out for a service call which is $212 plus whatever the issue is. This was a miscommunication error on Mr. Electrics side. I informed the tech about the problem and there was no testing on the wall afterwards. Very disappointed."

Brandon H on March 2024


"John, the owner quoted me the best price and did not try to upsell me on additional work like another contractor from Angie’s list. They showed up on time on the scheduled date and completed the work in a timely manner with no surprises or additional costs. I would use them again. "

Walt L on October 2025

**For fastest response, please call 215-941-1497** We are a full service residential and light commercial electrical contractor. We strive for customer satisfaction and always put quality & safety first. We offer 24 hour emergency service and provide free estimates.

"John, the owner quoted me the best price and did not try to upsell me on additional work like another contractor from Angie’s list. They showed up on time on the scheduled date and completed the work in a timely manner with no surprises or additional costs. I would use them again. "

Walt L on October 2025


Avatar for STAPLEFORD ELECTRIC

STAPLEFORD ELECTRIC

3847 EVELYN DR
4.73(
82
)
Approved Pro

STAPLEFORD ELECTRIC

3847 EVELYN DR
4.73(
82
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
58 local quotes requested

Family Owned and Operated for over 26 years. Whether you need wiring upgrades in your home or emergency lighting installed at your office, our team of contractors has the experience to handle all jobs. You can trust the reputation behind our name - we bring years of expertise to our business, and we guarantee satisfaction with all work we perform

"Fantastic ? I will keep contact information? Definitely Satisfied?"

Arletha W on October 2022

Family Owned and Operated for over 26 years. Whether you need wiring upgrades in your home or emergency lighting installed at your office, our team of contractors has the experience to handle all jobs. You can trust the reputation behind our name - we bring years of expertise to our business, and we guarantee satisfaction with all work we perform

"Fantastic ? I will keep contact information? Definitely Satisfied?"

Arletha W on October 2022


Avatar for Horizon Services

Horizon Services

900 Adams Ave
4.03(
1,236
)
Approved Pro

Horizon Services

900 Adams Ave
4.03(
1,236
)
Approved Pro
Customers say: Super punctual
108 local quotes requested
36 years of experience

Horizon 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, Horizon 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. Horizon Services is the Heating Company Your Friends and Neighbors Call to Keep Warm All Winter Long!

"I wouldn’t be writing this Review if one thing would have happened, TALK TO ME. Don’t place the answering service in the position of telling a Customer that the Supervisor has left for the day at 2.45p on a Thursday. Especially when the Horizon repairman had just fried our whole cooling system, including the thermostat!! What started with a bad fan motor in a new AC system that was only 3.5 years old in a $10,000 system, for which we had waited 4 days for the new motor to be installed. Add to that the fact that the repairman told me he would be at our home at 8.30a and didn’t arrive until 11.30a - after having to use a vacation day to wait at home for them to arrive. Then telling me this will be ‘quick’ all I have to do is switch out the motor by mounting it and plugging in the new one. Hours went by, nothing. He comes in to test the thermostat and it is non-responsive. He tells me to get new batteries, which I did. Then asks me, “these are new?” To which I say, ‘of course’ - you watched me take them out of the box. Then he goes out to his truck for the next 1.5hrs, supposedly speaks with his Supervisor and comes in and tells me that he has fried the system. I reply by saying I will be calling a senior person to speak with them. Called 4 times and never spoke with anyone. Each time I waited on hold for an extended period of time. Each time, I was then told by the answering service that someone would call and never did. Then at 2.45p I am told “everyone has left for the day” and no one would be calling. This was a Thursday, I had been home all day and no one would speak with me. We remain without an AC system, no plan, no calls - - nothing!!! If I could rate them a ZERO, I would,"

Scott M on June 2025

Horizon 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, Horizon 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. Horizon Services is the Heating Company Your Friends and Neighbors Call to Keep Warm All Winter Long!

"I wouldn’t be writing this Review if one thing would have happened, TALK TO ME. Don’t place the answering service in the position of telling a Customer that the Supervisor has left for the day at 2.45p on a Thursday. Especially when the Horizon repairman had just fried our whole cooling system, including the thermostat!! What started with a bad fan motor in a new AC system that was only 3.5 years old in a $10,000 system, for which we had waited 4 days for the new motor to be installed. Add to that the fact that the repairman told me he would be at our home at 8.30a and didn’t arrive until 11.30a - after having to use a vacation day to wait at home for them to arrive. Then telling me this will be ‘quick’ all I have to do is switch out the motor by mounting it and plugging in the new one. Hours went by, nothing. He comes in to test the thermostat and it is non-responsive. He tells me to get new batteries, which I did. Then asks me, “these are new?” To which I say, ‘of course’ - you watched me take them out of the box. Then he goes out to his truck for the next 1.5hrs, supposedly speaks with his Supervisor and comes in and tells me that he has fried the system. I reply by saying I will be calling a senior person to speak with them. Called 4 times and never spoke with anyone. Each time I waited on hold for an extended period of time. Each time, I was then told by the answering service that someone would call and never did. Then at 2.45p I am told “everyone has left for the day” and no one would be calling. This was a Thursday, I had been home all day and no one would speak with me. We remain without an AC system, no plan, no calls - - nothing!!! If I could rate them a ZERO, I would,"

Scott M on June 2025

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Electrical questions, answered by experts

A light switch can stop working for several reasons. Typical causes include a blown fuse or tripped circuit breaker, both of which shut off power to the switch. Worn-out or faulty internal switch components can also prevent it from functioning properly. Loose or disconnected wiring within the switch or electrical box is another frequent issue. Additionally, switches may fail due to age, excessive use, or physical damage. In some cases, problems with the light fixture or bulb itself might be mistakenly attributed to the switch.

Yes, the National Electrical Code (NEC) requires that outdoor Christmas lights be plugged into a ground-fault circuit interrupter (GFCI) outlet to prevent hazardous electrical shocks or an electrical fire. It’s a code violation to plug outdoor Christmas lights into a non-GFCI outlet, so be sure to follow these guidelines for a safe and successful installation.

You can bury underground electrical wire six inches deep—but only if you use a rigid metal electrical conduit. For rigid, non-metallic conduits, bury the wire at least 12 inches deep. If using an underground feeder cable rated for direct burial, you'll need to place it at least 18 inches deep, as it has no conduit for extra protection.

Compared to amps, volts, and watts, ohms are a different kind of measurement, though also very common. Ohms show the resistance of materials like wiring: How much they impede the flow of electrons. The reason household wiring is usually copper or aluminum is that these materials are affordable and also have lower ohms, which means low resistance/high conductivity.

Most new homes have coax outlets in every room. A home can require anywhere from one to five outlets based on how many rooms require internet, cable, or satellite access. If you want to mount your TV on a wall as part of a home renovation, consider installing a new outlet to avoid the need for a splitter or long cable that could slow down speeds.

The King Of Prussia, PA homeowners’ guide to electrical services

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