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Why Is My Energy Bill Higher Than Usual?

May 1, 2025

Does your utility bill keep creeping up, even though your habits haven’t changed?

If you’re constantly wondering why your energy bill is so high, you’re not alone. Many homeowners across Tulsa and the surrounding areas are surprised by sudden spikes in their energy costs – and most don’t realize that small issues in the home can lead to big utility bills.

At ProThermal Heating and Cooling, we help homeowners track down the source of energy waste and restore both comfort and efficiency. Here’s what might be driving up your bill, and what you can do to bring it back down.

HVAC Problems That Drive Up Energy Bills

Your heating and cooling system is often the biggest energy consumer in your home. When something’s off, it has to work harder – and that effort shows up on your utility bill.

Here are some common HVAC issues that lead to high energy use:

  • Dirty or clogged air filters reduce airflow and force your system to run longer to maintain comfort.
  • Leaky ductwork lets your heated or cooled air escape into attics or crawl spaces before it ever reaches your living areas.
  • Older or outdated HVAC systems are less efficient, often running longer than necessary just to keep up with temperature demands.
  • Malfunctioning thermostats can cause your system to cycle on and off more frequently than needed, wasting energy throughout the day.

If your HVAC system hasn’t been serviced in awhile, or is over 10 years old, it could be the main reason your energy bills keep rising.

Poor Insulation Can Be Costing You

Insulation is one of the most overlooked contributors to energy efficiency, especially in older Tulsa homes. Without proper insulation in your attic, walls, or crawl spaces, it’s nearly impossible to keep your home at a steady, comfortable temperature.

When insulation is lacking, you may notice:

  • Uneven temperatures between rooms
  • HVAC systems running constantly
  • Hot or cold spots throughout your home

In short, your heating or cooling system ends up doing all the work that insulation is supposed to help with – leading to higher energy usage and higher utility bills. Investing in insulation improvements can lower your monthly costs and extend the life of your HVAC system.

Everyday Habits That Waste Energy

It’s not just your HVAC system or insulation… Daily habits can also add up to major energy loss over time.

Do any of these sound familiar?

  • Leaving lights, TVs, or electronics on when not in use
  • Running the dishwasher or laundry during peak hours
  • Forgetting to close doors and windows while the HVAC is running
  • Ignoring small air leaks around windows, vents, or door frames

Simple changes like using appliances during off-peak times, sealing air leaks, and turning off unused electronics can make a noticeable difference. The more efficient your habits, the more your home (and energy bill) benefit.

Let ProThermal Help You Take Control of Your Energy Use

If your energy bill is higher than it should be, it might be time to take a closer look at your HVAC system, insulation, and everyday routines.

At ProThermal Heating and Cooling, we’re here to help Tulsa homeowners pinpoint the problem and fix it fast. From HVAC maintenance to upgrades, our team provides practical, cost-saving solutions that protect both your comfort and your budget.

Call (918) 212-0258 to schedule a service visit or home energy evaluation. Let’s get your energy bills back where they belong.

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About The Author

ProThermal Heating And Cooling

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Michael Haecherl profile picture
Michael H
5 October 2026
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Professional transparent thorough inspection!
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Larry Dodge profile picture
Larry D
4 October 2026
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Both technicians were extremely helpful and very customer oriented. They answered all my questions and went beyond what I would call great customer service. I will use this company from now on because of the honest and knowledgeable service I received.Glad I took a chance with this company, exceeded my expectations. Thanks again for your professional service.
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Trudy O profile picture
Trudy O
3 October 2026
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My experience with Pro Thermal and their technicians the last year and a half has been nothing but exceptional! My thermostat went out and within a couple hours Curtis was at my house. He determined the controller was bad so he ordered another thermostat and had it delivered overnight. Once received he returned and got the new one installed. Thank you Curtis for your excellent customer service and professionalism. I highly recommend ProThermal!! They are the best!
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Dr. Howard Hatcher profile picture
Dr. H
2 October 2026
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Grant did an exceptional and professional job beyond words! ProThermal is my new go to company for my heating and air needs! If I could give ten stars I would! Dr. H
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David Kennedy profile picture
David K
2 October 2026
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Daniel from ProThermal HVAC came to do the fall check on our old heating/cooling unit. He showed me photos of the rusted out heater and determined it was unsafe to use and that carbon monoxide was detected in our house. He was very professional and presented several choices to repair the unit. We chose to purchase a new unit since the repair work was going to cost almost as much as a new one. Daniel did a great job and contacted the person that would handle our purchase. I recommend ProThermal to anyone needing service on their HVAC.
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Wayne Fields profile picture
Wayne F
1 October 2026
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Very respectful young men. Knowledgeable, friendly and thoughtful.
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Logan Price profile picture
Logan P
30 September 2026
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Jim B did a detailed, thorough job tuning up all our heating/cooling systems and was very helpful explaining things to us! Very prompt response time as well. Highly recommend for any HVAC services you need done.
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Paul Ross profile picture
Paul R
29 September 2026
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Tristan & Bret did an outstanding job. Great work and professional. Thank you Paul
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Elizabeth Apker profile picture
Elizabeth A
29 September 2026
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Efficient and very polite.
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Dustiedawns T
29 September 2026
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Grant was excellent. He did our heater check up. He had pictures to show me everything and was able to explain things in ways that I could understand. He took his time and was very detailed with his inspections. He also cleaned up a couple parts on our heater so it will be working and tip top shape for this winter. I got the yearly membership and it is worth it. Excellent service excellent people.
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