Do dehumidifiers use a lot of electricity?

• <div><p>Yes, dehumidifiers use a lot of electricity. However, proper humidity also means your home’s temperature remains more stable, thus lowering heating and <a href="https://www.angi.com/articles/how-many-watts-ac.htm">air conditioning bills</a>. The good news is you shouldn’t need to use a dehumidifier more than a few months per year, so the energy costs won’t be as noticeable as other larger appliances. </p></div>

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Q: Can a faulty or broken light switch cause a fire?

• <div><p>Yes, a faulty or broken light switch can be a serious fire hazard. Malfunctioning switches, often due to loose connections, exposed wiring, or overheating, can cause sparking or arcing. If you hear a crackling, popping, or hissing sound when you use the switch, it indicates live electricity arcing inside, which is a significant hazard that can ignite nearby flammable materials. If you suspect your light switch is faulty, turn off the power to that circuit at the breaker and contact a qualified electrician to remedy the issue.</p></div>

Q: How do I know which terminals are which on a GFCI outlet?

• <div><p>GFCI outlets should be clearly labeled with LINE and LOAD labels, with arrows leading to the proper terminals. The line terminals are typically at the top, and the load terminals are typically at the bottom.</p></div>

Q: Do hertz affect the flow of electricity as well?

• <div><p>Yes, but our analogy with the water hose doesn&rsquo;t really work here. You see, electrical flow isn&rsquo;t constant: It ebbs and flows like waves, coming in pulses of power. Hertz measures the rate of change in the flow of electricity, or how often it ebbs and flows. For example, 60Hz means that the electrons pulse through wiring 60 times per second. When they are pulsing, they&rsquo;re in a brief retreat. Almost all United States equipment is rated for 60Hz.</p></div>

Q: What if there is no C-wire for your thermostat?

• <div><p>If your thermostat does not have a C-wire, you can hire a professional to check for an abandoned C-wire hidden in the wall, install a new C-wire, repurpose an existing G-wire to function as a C-wire, or purchase a C-wire adapter kit. </p><p>There are some smart thermostat models that do not require a C-wire, but this will limit the functionality of the smart technology.</p></div>

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Verified Reviews for Electrical Service pros in Fairfield, IL

*The Angi rating for Electrical Service companies in Fairfield, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Electrical Service needs.

*The HomeAdvisor rating for Electrical Service companies in Fairfield, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Electrical Service needs.

Last update on January 26, 2026

Reviewed in January 2026
Langley Electric had the part we needed in stock on the coldest day of the year so far. He charged a very fair price, delivered to the front door, and was extremely quick.
Langley Electric
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Reviewed in July 2025
Authority Plumbing was amazing. I had to replace a toilet quickly and they came the next day and installed a new one. Everything went very smooth and fast. I would highly recommend them for any plumbing issues one may have. Price was competitive as well. Thank you. -John
Authority Plumbing & Drain LLC
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Reviewed in June 2024
The work was completed in one day, with minimal inconvenience
Bath Experts
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Reviewed in June 2024
Cameron done a great job. His quality of work was outstanding.
Drywall Dynasty
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Reviewed in June 2023
J & L Construction repaired our roof in a timely and professional manner. They have a well-trained and knowledgeable crew that work well together. The owner was courteous and helpful throughout the process. They also repaired water damage incurred from the leaking roof done to our ceilings. ...
JL Construction
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Reviewed in July 2022
Very friendly,knew what they were doing,great cleanup. Will use again!
Hirons Excavation
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Reviewed in July 2022
The two workers did not stop working the entire time here. Did in depth vacuuming of upholstered furniture. They took pictures of each counter or shelf, cleaned the area, and then replaced all in proper place. They have a system to start and finish so they didnâ t miss anything. They dusted...
DF Cleaning
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Reviewed in July 2019
My project was removing an existing electric furnace and Central air and installing a new electric furnace and heat pump. Marty Acord reviewed the work, made recommendations, and promptly gave me a bid. He completed the work in one day in a very professional manner and at a lower cost than my...
Tri Star Heating & Cooling
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Reviewed in July 2012
Super, everything is great, you call them and they response is quick. They are very pleasant, clean, very neat when they come into your house and I was really, really pleased with their work. Like I said the outcome is great because the system really works good now. I highly recommend them. I...
Electro Electric
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Find Electricians in Fairfield

Mid America Lightning Protection

4.5(

)

Serving Fairfield, IL and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

"Absolutely one of the best companies I have ever hired. Quick response to my inquiry to have a lightning protection system installed on my house. They showed up literally the next day and had the job done within a few hours. Professional installation at its finest. Price was more than fair and the owner is very knowledgeable and works hard to earn your business highly recommended"

+70

Response time6 hrs

Response rate94%

3 neighbors recently requested a quote

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Pittman heating and cooling llc

5.0(

)

Serving Fairfield, IL and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Needed a new thermostat installed because my other one didnt work right. He came out, put a new one in, made sure it worked fully and completed the job. Have had no issues with my new thermostat. Scott is friendly, knowledgeable, and down to work. I appreciate his help."

6 neighbors recently requested a quote

Serving Fairfield, IL and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"They were able to get a technician to our office same day on a Friday . Phones were fixed and we were back in business. Excellent Service!"

Response time3 hrs

Response rate99%

5 neighbors recently requested a quote

Serving Fairfield, IL and surrounding areas

Approved

In business since 2000

Free estimates

Credit card accepted

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

Response time2 days

Recommended by100%of homeowners

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Next Phase Power LLC

New to Angi

Serving Fairfield, IL and surrounding areas

Approved

My name is David Michl, and Next Phase Power LLC is built on 20 years of hands-on electrical experience across residential, commercial, and industrial work. From home wiring to underground PVC trenching for services, fuel stations, and farms, I understand how important reliable power is to everyday life.\nProudly serving Jasper County, Effingham, and surrounding communities with dependable service, honest work, and quality craftsmanship. Fully licensed and insured, competitive pricing, and free estimates. Feel free to call or text anytime, and don’t forget to leave a review here or on our Facebook page. Thank you for your support!

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Daniel Wallace

New to Angi

Serving Fairfield, IL and surrounding areas

Approved

I’m a hardworking person who doesn’t like to leave projects half finished or looking sloppy, I can be a bit of a perfectionist. I’ve always fixed and built almost everything I needed myself and I take pride in being self sufficient. I’ve been an electrician for a year and half now and before that I was fabricating aerators for private residences. I have a wife and two children, so I can handle the chaos of a whole house remodel even if you decide to alter any details halfway through.

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T.K. Carlson Construction

New to Angi

Serving Fairfield, IL and surrounding areas

Approved

In business since 2017

Free estimates

Offers commercial services

Monday-Saturday 7-7\nT.K. Carlson Construction is 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.

Response time3 days

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Lightning Defense, LLC (Illinois)

4.6(

136

)

Serving Fairfield, IL and surrounding areas

In business since 1972

Free estimates

Emergency services offered

"Highly knowledgeable, friendly, on time and it was an excellent experience."

+13

Response time4 hrs

Recommended by100%of homeowners

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V&V Electric and Remodeling

4.2(

)

Serving Fairfield, IL and surrounding areas

"They are good,professional,on time and no trouble about the work."

Recommended by100%of homeowners

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Ty's electric and construction

5.0(

)

Serving Fairfield, IL and surrounding areas

In business since 2014

Free estimates

Emergency services offered

"It was very good. The landscaper was very pleased with it. He did it in a timely manner. Also, 8 months ago, he built a sunroom in our house."

Recommended by100%of homeowners

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...

Showing 1-10 of 55

Electrical questions, answered by experts

Yes, a faulty or broken light switch can be a serious fire hazard. Malfunctioning switches, often due to loose connections, exposed wiring, or overheating, can cause sparking or arcing. If you hear a crackling, popping, or hissing sound when you use the switch, it indicates live electricity arcing inside, which is a significant hazard that can ignite nearby flammable materials. If you suspect your light switch is faulty, turn off the power to that circuit at the breaker and contact a qualified electrician to remedy the issue.

GFCI outlets should be clearly labeled with LINE and LOAD labels, with arrows leading to the proper terminals. The line terminals are typically at the top, and the load terminals are typically at the bottom.

Yes, but our analogy with the water hose doesn’t really work here. You see, electrical flow isn’t constant: It ebbs and flows like waves, coming in pulses of power. Hertz measures the rate of change in the flow of electricity, or how often it ebbs and flows. For example, 60Hz means that the electrons pulse through wiring 60 times per second. When they are pulsing, they’re in a brief retreat. Almost all United States equipment is rated for 60Hz.

Yes, dehumidifiers use a lot of electricity. However, proper humidity also means your home’s temperature remains more stable, thus lowering heating and air conditioning bills. The good news is you shouldn’t need to use a dehumidifier more than a few months per year, so the energy costs won’t be as noticeable as other larger appliances.

If your thermostat does not have a C-wire, you can hire a professional to check for an abandoned C-wire hidden in the wall, install a new C-wire, repurpose an existing G-wire to function as a C-wire, or purchase a C-wire adapter kit.

There are some smart thermostat models that do not require a C-wire, but this will limit the functionality of the smart technology.

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