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Holderman Homes, LLC

5.00(
1
)
Approved Pro

Holderman Homes, LLC

5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

We're a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor Home Improvement services that are customizable to each individual project. We specialize in Bathroom and Kitchen Remodels, but also offer a wide range of expertise for a variety of other projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"He did a great job and he is a great man. Easy to work with"

Doug W on September 2022

We're a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor Home Improvement services that are customizable to each individual project. We specialize in Bathroom and Kitchen Remodels, but also offer a wide range of expertise for a variety of other projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"He did a great job and he is a great man. Easy to work with"

Doug W on September 2022


Brandon Tepper

4.92(
6
)
Approved Pro

Brandon Tepper

4.92(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
9 years of experience

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"Had Brandon come and install 4 fans. He was on time, communicated very well, pricing was great and he didn’t mind my toddler trying to talk his ear off or my small dog barking at him. Would definitely recommend to others and we plan on using him for our light fixtures when the time comes."

Ashley P on April 2023

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"Had Brandon come and install 4 fans. He was on time, communicated very well, pricing was great and he didn’t mind my toddler trying to talk his ear off or my small dog barking at him. Would definitely recommend to others and we plan on using him for our light fixtures when the time comes."

Ashley P on April 2023


Avatar for Trinity Generators & Electrical, Inc.

Trinity Generators & Electrical, Inc.

4.64(
18
)
Approved Pro

Trinity Generators & Electrical, Inc.

4.64(
18
)
Approved Pro
Customers say: True professional
16 years of experience
Free onsite estimate

Trinity Generators & Electrical, Inc., with over 30 years of experience, we are well known reputable company who provides excellent quality work, as well as providing every customer the full attention that they deserve. Call today and get a professional to do the job for you!

"Last Monday, Nov. 3, I had some major surgery done on my GENERAC generator. It was time for "Super Maintenance" and your service man did a SUPER job! His name is Joe and he did a great job servicing my machine. He arrived on time and went right to work. He changed the oil and oil filter, put in a new battery, adjusted the valves, put in a new air filter, and even cleaned the top of the generator. All this while i looked over his shoulder and asked questions, lots of questions. I am impressed with Mr. Joe. He is very knowledgeable about your products, well spoken, and easy to talk to. It took him less than an hour to complete his work, despite my constant jabbering. He's a KEEPER! Thank You Trinity, And Thank You Joe! Paul O Weller Trinity Client"

Misc E on November 2025

Trinity Generators & Electrical, Inc., with over 30 years of experience, we are well known reputable company who provides excellent quality work, as well as providing every customer the full attention that they deserve. Call today and get a professional to do the job for you!

"Last Monday, Nov. 3, I had some major surgery done on my GENERAC generator. It was time for "Super Maintenance" and your service man did a SUPER job! His name is Joe and he did a great job servicing my machine. He arrived on time and went right to work. He changed the oil and oil filter, put in a new battery, adjusted the valves, put in a new air filter, and even cleaned the top of the generator. All this while i looked over his shoulder and asked questions, lots of questions. I am impressed with Mr. Joe. He is very knowledgeable about your products, well spoken, and easy to talk to. It took him less than an hour to complete his work, despite my constant jabbering. He's a KEEPER! Thank You Trinity, And Thank You Joe! Paul O Weller Trinity Client"

Misc E on November 2025


Avatar for AMR Service Group

AMR Service Group

4.80(
323
)
Approved Pro

AMR Service Group

4.80(
323
)
Approved Pro
Customers say: True professional
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
466 local quotes requested

AMR Service Group LLC was established in 2014 as a residential plumbing & electrical business, serving homeowners and residential property investors. The company's mission is to provide quality, quick and efficient plumbing & electrical services. The company motto is, that you cannot lead until you learn to serve. As AMR Service Group continues to grow and develop a reputation, residents will find that this reliable and friendly neighborhood plumbing & electrical company continues to thrive on the principles it was founded upon.

"The service went well with them. "

John G on October 2025

AMR Service Group LLC was established in 2014 as a residential plumbing & electrical business, serving homeowners and residential property investors. The company's mission is to provide quality, quick and efficient plumbing & electrical services. The company motto is, that you cannot lead until you learn to serve. As AMR Service Group continues to grow and develop a reputation, residents will find that this reliable and friendly neighborhood plumbing & electrical company continues to thrive on the principles it was founded upon.

"The service went well with them. "

John G on October 2025


Avatar for Marshall Services

Marshall Services

4.40(
101
)
Approved Pro

Marshall Services

4.40(
101
)
Approved Pro
Customers say: Quick response
169 local quotes requested
79 years of experience

We believe that all of our clients are family. Our mission is to provide all of our family members total indoor comfort, at an affordable price. Some of the many ways we do that are: installation and servicing of natural and propane gas appliances, oil heating appliances, heat pumps, air-conditioning, plumbing, fuel oil delivery, and we have an Indoor Air Quality Expert on staff. If you want a local family owned, well trained staff of drug tested, criminal background checked technicians to come to your home and solve your problem, call us!

"Marshall Services was great!"

Howard S on March 2025

We believe that all of our clients are family. Our mission is to provide all of our family members total indoor comfort, at an affordable price. Some of the many ways we do that are: installation and servicing of natural and propane gas appliances, oil heating appliances, heat pumps, air-conditioning, plumbing, fuel oil delivery, and we have an Indoor Air Quality Expert on staff. If you want a local family owned, well trained staff of drug tested, criminal background checked technicians to come to your home and solve your problem, call us!

"Marshall Services was great!"

Howard S on March 2025


"The major part of the work was replacing an old outdated Bulldog Pushmatic electric panel with the latest main breaker system. They also replaced the Matter Base, labeled all the circuits, replaced and installed GFCI, installed 5 new fixes and 2 ceiling fans, added outlets inside and in the garage, and fixed bad wiring in a few places from previous owners."

Cynthia H on January 2020

At Mister Sparky Electric, customer satisfaction is our first priority. We have over 50 years experience in providing the best quality products and service. Call today to find out what makes us the best! Remember, "We're On Time You'll See or The Repair Is FREE!"

"The major part of the work was replacing an old outdated Bulldog Pushmatic electric panel with the latest main breaker system. They also replaced the Matter Base, labeled all the circuits, replaced and installed GFCI, installed 5 new fixes and 2 ceiling fans, added outlets inside and in the garage, and fixed bad wiring in a few places from previous owners."

Cynthia H on January 2020


Avatar for W B Lightning Rods

W B Lightning Rods

4.93(
297
)
Approved Pro

W B Lightning Rods

4.93(
297
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
205 local quotes requested

WB Lightning Rods is a third-generation lightning protection contractor. Family Owned and operated for over 60 years. installing U.L. Listed Lightning protection systems, All Over the East coast, Midwest south east and south west regions of the U.S. Installations on Residential Homes, Estate Properties, Agricultural and Equestrian Properties. Lightning Protection for trees is also available. No job to big or small References upon Request. Contact us today for a no cost or obligation estimate. We look forward to working with you on your Lightning Protection Project. Thank you. **WE ARE NOT ELECTRICIANS** **WE ONLY INSTALL LIGHTNING PROTECTION SYSTEMS **

"Great company, they were fast, friendly, & accommodating. I would definitely use them again."

Jennifer B on October 2024

WB Lightning Rods is a third-generation lightning protection contractor. Family Owned and operated for over 60 years. installing U.L. Listed Lightning protection systems, All Over the East coast, Midwest south east and south west regions of the U.S. Installations on Residential Homes, Estate Properties, Agricultural and Equestrian Properties. Lightning Protection for trees is also available. No job to big or small References upon Request. Contact us today for a no cost or obligation estimate. We look forward to working with you on your Lightning Protection Project. Thank you. **WE ARE NOT ELECTRICIANS** **WE ONLY INSTALL LIGHTNING PROTECTION SYSTEMS **

"Great company, they were fast, friendly, & accommodating. I would definitely use them again."

Jennifer B on October 2024


Avatar for Horizon Services

Horizon Services

4.31(
1,060
)
Approved Pro

Horizon Services

4.31(
1,060
)
Approved Pro
Customers say: Super punctual
120 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


Avatar for AMF Electric, LLC

AMF Electric, LLC

5.00(
3
)
Approved Pro

AMF Electric, LLC

5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
133 local quotes requested

AMF Electric, LLC has over fifteen years of experience in the residential, commericial and industrial electrical field services. We offer professional work with 100% satisfaction guaranteed on every job. If you're looking for high quality and personal service, you've come to the right place. At AMF Electric, LLC we'll give you the attention and personal service you'll come to expect and enjoy. Our rates are competitive, with no hidden fees. Our employees are friendly and will be there to help you every step of the way. AMF Electric, LLC has been providing electrical service in City of Philadelphia and the surrounding counties. So let us put our experience to work for you!

"AMF Electric LLC installed a service cable, panel and ground rod. The service techs were knowledgeable and respectful. I had no problems with their service."

Daniel P on November 2024

AMF Electric, LLC has over fifteen years of experience in the residential, commericial and industrial electrical field services. We offer professional work with 100% satisfaction guaranteed on every job. If you're looking for high quality and personal service, you've come to the right place. At AMF Electric, LLC we'll give you the attention and personal service you'll come to expect and enjoy. Our rates are competitive, with no hidden fees. Our employees are friendly and will be there to help you every step of the way. AMF Electric, LLC has been providing electrical service in City of Philadelphia and the surrounding counties. So let us put our experience to work for you!

"AMF Electric LLC installed a service cable, panel and ground rod. The service techs were knowledgeable and respectful. I had no problems with their service."

Daniel P on November 2024


"Glenn goes above and beyond for his customers. We hired Glenn for a number of different activities including hanging 75” TV over the mantle, installing recessed lighting and fixing the electrical panel. Glenn is knowledgeable, hardworking and always wants his customers to be happy with the end product. This combination of attributes makes for one top-notch electrician! Highly recommended"

Ryan H on September 2021

ALL WORK PERFORMED BY OWNER - Licensed and Insured - PA Home Improvement Contractor certified #054145 - 40 years experience

"Glenn goes above and beyond for his customers. We hired Glenn for a number of different activities including hanging 75” TV over the mantle, installing recessed lighting and fixing the electrical panel. Glenn is knowledgeable, hardworking and always wants his customers to be happy with the end product. This combination of attributes makes for one top-notch electrician! Highly recommended"

Ryan H on September 2021

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Generator Install questions, answered by experts

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.

Many services include assembling the unit and securing it in the window. Confirm with your provider.

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.

In most municipalities, you will need a permit to install a permanent home generator, including emergency backup, partial-home, and whole-home generators. A permit for a generator usually costs between $50 and $250, depending on where you live. Your electrician or certified generator installer will usually pull the permit for you—and might be required to do so by your building department—but you’ll be on the hook for the cost of the permit. You should ask your installer before agreeing to any work if they will pull the necessary permits for your project.

You can expect a diesel generator to last for up to 30,000 hours of use, which works out to 20 to 25 years with the proper maintenance, of course. That depends on how much you use it, so a diesel generator used for emergencies a couple of times a year will last a lot longer than a generator that takes over for a faulty electrical grid every month for a day or two. 

The Frederick, PA homeowners’ guide to generator installs

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