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Q: Can a dirty air filter cause a high electric bill?

• <div><p>Yes, a dirty air filter can cause a higher electric bill. That&rsquo;s because clogged filters make it harder for air to flow through your HVAC system, which forces it to work harder and use more energy. According to the <a href="https://www.energy.gov/energysaver/maintaining-your-air-conditioner#:~:text=Replacing%20a%20dirty%2C%20clogged%20filter,in%20the%20air%20conditioner%20itself.">U.S. Department of Energy</a>, replacing dirty filters can save you between 5% and 15% in utility costs.</p></div>

Q: Is it better to oversize or undersize AC?

• <div><p>It&rsquo;s critical to use the right size AC for your space and not go too small or too big. If you purchase an undersized unit, it won&rsquo;t properly cool your house, and it has to work harder to reach the optimal temperature. This will eventually wear your unit out. An oversized unit can spell trouble because it will turn off and on more frequently, which also wears out your AC unit. An oversized unit also causes humidity in the home.</p></div>

Q: Why is my home hotter than outside?

• <div><p>High humidity, bad insulation, warmth from sunlight, and poor circulation are all reasons your home&rsquo;s hotter inside than out. While this is what you want in the colder months, summer can become unbearable if this is a constant. Try to find the cause, but you need to remember that issues like this require a permanent fix (unless you want to bear down during the summer months).</p></div>

Q: Should I replace a 20-year-old AC unit?

• <div><p>The average life span of an HVAC system is 15 to 20 years. Even if your old air conditioner is still functional, it isn't as energy-efficient as a newer system (especially one with an Energy Star designation). Older HVAC systems aren't as efficient, and the 10-year mark is when you should start making full system replacement plans. Twenty years in, that plan should be well underway rather than waiting for the unit to die.</p></div>

Q: Do window AC units have problems with overcharged refrigerants?

• <div><p>They can, but it&rsquo;s not as common. <a href="https://www.angi.com/articles/troubleshooting-window-ac-problems.htm">Window AC units</a> are much smaller than whole-house systems and less likely to develop refrigerant leaks or similar issues. As a result, you will rarely need to add a new refrigerant, limiting overcharging problems. However, it&rsquo;s still important to leave refrigerant management in the hands of professionals when window units need work.</p></div>

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Verified Reviews for Heating And Air Conditioning Service pros in Jay, ME

*The Angi rating for Heating And Air Conditioning Service companies in Jay, ME is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Jay, ME is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

Last update on June 27, 2025

Reviewed in June 2025
Noah was quick and efficient. The job was well done and the area was left clean. He was very patient and let me write down directions (to add to the manual) as he took time to show me how to start up and run the new generator.
Parker Electric LLC
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Reviewed in April 2025
Corey and his crew were very efficient and pleasant. Nice job on the shingles and helping me find someone to do the chimneys. Everything is clean like they were never there. Thank you for a job well done.
Leneva Home Improvement
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Reviewed in March 2025
LMC Home Remodeling are very professional and efficient. I had a leak in my roof which they were prompt in diagnosing and fixing to a high standard.
LMC Home Remodeling, Inc.
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Reviewed in March 2025
The way to go. Future Homes is reliable and great at their craft. Dan and Ryan were a pleasure to conduct business with and were very knowledgeable. Their crew was top of the line, hard workers. They built my place from the ground up. Energy efficient is the way to go! Radiant heat added...
Future Homes USA, Inc.
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Reviewed in October 2024
This was our first time using Apollo Insulation and Geremy and Dennis did an excellent job removing our old (rodent droppings and urine) insulation. They disinfected and repaired any damage caused by the rodents. New insulation was blown in and we couldnâ t be happier. From the initial...
Apollo Insulation
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Reviewed in October 2024
I hired Brettâ s company to help me clean out and organize a storage unit. They were fast and efficient, and well worth the money. Highly recommended!
ASDS Junkernauts
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Reviewed in September 2024
fireplace repair,and chimney maintenance What a great experience!! They came and fixed my fire place and chimney better than when it was new!! Excellent craftsmanship, punctual, well mannered and extremely knowledgeable
J&M Masonry
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Reviewed in September 2023
Found onto Evergreen on Google - Caleb answered and we diagnosed the problem over the phone. Dan was here installing a new holding tank three days later. Dan was awesome and super knowledgeable - we chatted away at all sorts of home maintenance topics. Cost was what I was quoted over the...
Evergreen Plumbing Solutions
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Reviewed in February 2023
They are the best! I hired them to paint the interior of my house. They have since installed flooring and turned an unused room into a laundry and half bath. I have many more projects and they will be the ones to complete them. I have gotten to know the crew so well I consider them family.
G Painting and Services, LLC
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Reviewed in September 2022
I was impressed by the efficiency and effectiveness of the business. The technician was personable, and got the job done well and quickly..
Sterling Refinishing
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Find Heating and air conditioning pros in Jay

C G Heat Pumps LLC

5.0(

)

Serving Jay, ME and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

"Nat did a fantastic job. He is the best."

Response time3 hrs

Response rate96%

6 neighbors recently requested a quote

Serving Jay, ME and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"They were super helpful and the staff was so nice I recommend Able Trades to everyone they installed 2 heat pumps in my home and they are amazing iam so thankfull"

Response time1 day

Response rate100%

9 neighbors recently requested a quote

Serving Jay, ME and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Small jobs welcome

"Noah came in and was very professional and personable. The upgrades to ensure safety was done fast and efficiently. Definitely will call again if further work is needed. Highly recommend this company."

Response time9 hrs

Response rate90%

12 neighbors recently requested a quote

Serving Jay, ME and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Emergency services offered

"Josh did a great job on the roof repair. He did the job when he said he would. He picked up the materials so I didn’t have to. I would hire Josh again and I would recommend him as well."

+104

Response time2 days

Response rate96%

14 neighbors recently requested a quote

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Current Solutions Contracting LLC

5.0(

)

Serving Jay, ME and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Current Solutions Contracting upgraded our electrical service and replaced our panel and the experience was excellent from start to finish. He explained the process clearly, handled everything professionally, and made sure all work was done safely and up to code. The installation was clean, organized, and completed efficiently. Communication was great and he took the time to answer all of our questions. It?s clear he takes pride in his work and cares about doing the job right. I would absolutely recommend Current Solutions Contracting to anyone needing electrical work."

12 neighbors recently requested a quote

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JACC services

New to Angi

Serving Jay, ME and surrounding areas

Approved

I am a seasoned plumbing and heating professional with 15 years of industry experience, specializing in the service and installation of residential plumbing and heating systems. My expertise includes heat pump installation and maintenance, as well as comprehensive home water treatment solutions. I am dedicated to delivering high-quality workmanship, reliable system performance, and exceptional customer service on every project.

Serving Jay, ME and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

"Their work was really good. They were really good with communication, very professional, really pleasant to deal with."

Response time8 hrs

14 neighbors recently requested a quote

Recommended by100%of homeowners

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TJ Electrical and Radon Air LLC

New to Angi

Serving Jay, ME and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

TJ Eectric is a residential electrical contractor, specializing in new construction, remodels, service upgrades and much much more! We are a family owned and veteran owned buisness who strive to provide our customers with the best experience possible, we want you to feel like part of the TJ Electric family, and know that we take pride in our workmanship and transparency! We have all 5-star reviews across all platforms we are listed on and do everything we can to maintain that presence on the job. So if your in need of a highly qualified electrician for your home projects give us a call today!

6 neighbors recently requested a quote

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The Propane Guy

New to Angi

Serving Jay, ME and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

If it runs on propane or oil, I can work on it. Cleanings, safety inspections, installs, gas piping, repairs/troubleshooting. I'm just a guy that knows a lot...here to help

6 neighbors recently requested a quote

Serving Jay, ME and surrounding areas

In business since 2020

Emergency services offered

Warranties offered

"Joseph was a delight to work with. A U.S. veteran and pro in the HVAC space, heâ s recently opened up his own shop and is laser focused on making new customers happy. Give him a call."

Response time1 day

Response rate90%

Recommended by89%of homeowners

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Showing 1-10 of 51

Heating and Air Conditioning questions, answered by experts

Yes, a dirty air filter can cause a higher electric bill. That’s because clogged filters make it harder for air to flow through your HVAC system, which forces it to work harder and use more energy. According to the U.S. Department of Energy, replacing dirty filters can save you between 5% and 15% in utility costs.

It’s critical to use the right size AC for your space and not go too small or too big. If you purchase an undersized unit, it won’t properly cool your house, and it has to work harder to reach the optimal temperature. This will eventually wear your unit out. An oversized unit can spell trouble because it will turn off and on more frequently, which also wears out your AC unit. An oversized unit also causes humidity in the home.

High humidity, bad insulation, warmth from sunlight, and poor circulation are all reasons your home’s hotter inside than out. While this is what you want in the colder months, summer can become unbearable if this is a constant. Try to find the cause, but you need to remember that issues like this require a permanent fix (unless you want to bear down during the summer months).

The average life span of an HVAC system is 15 to 20 years. Even if your old air conditioner is still functional, it isn't as energy-efficient as a newer system (especially one with an Energy Star designation). Older HVAC systems aren't as efficient, and the 10-year mark is when you should start making full system replacement plans. Twenty years in, that plan should be well underway rather than waiting for the unit to die.

They can, but it’s not as common. Window AC units are much smaller than whole-house systems and less likely to develop refrigerant leaks or similar issues. As a result, you will rarely need to add a new refrigerant, limiting overcharging problems. However, it’s still important to leave refrigerant management in the hands of professionals when window units need work.

The Jay, ME homeowners’ guide to heating and air conditioning services

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

See all articles

Taylor Freitas
•
Mar 6, 2026Mar 6, 2026
Forced-Air vs. Central Air Systems: How Do They Compare?
While there are similarities between the two, forced air and central air aren’t the same thing. Here’s how forced-air vs. central air systems compare.
Stephanie Mickelson
•
May 2, 2026May 2, 2026
What Does a Furnace Do and How Does It Work With Air Conditioning?
The furnace and the air conditioner are two separate systems in your home, but they work together to keep your space at a comfortable temperature.
Barbara Bellesi Zito
•
Apr 5, 2026Apr 5, 2026
Adding Central Air to Your House: Can You Install AC in Your Home?
Adding central air to a house can add comfort and increase your home’s value. Our guide explains what you need to know about installing AC.
Kat Brancato
•
Mar 6, 2026Mar 6, 2026
Baseboard Heating vs. Forced Air: Which Is Best for Your Home?
Choosing the right heating system can be overwhelming. Learn the differences between baseboard heating vs. forced air to decide which is right for your home.
Marwa Hasan
•
May 21, 2026May 21, 2026
Can You Add Central Air to a Baseboard-Heated House?
A central air system is great for someone looking to cool and heat their home all year round. Even if your home uses baseboard heating, you can still make the switch. Read on to learn more about adding central air to a baseboard-heated house.
Paige Bennett
•
May 2, 2026May 2, 2026
How Does AC Work to Keep Your Home Cool?
Have you ever wondered how AC works to make cold air that it pushes through your home? Follow this guide to learn air conditioning basics.