25C Eligible Systems

What Is the 25C Tax Credit?
The 25C tax credit is a means for the federal government to incentivize energy efficiency by offering tax credits for installing qualifying upgrades in your home. While your specific tax credit can vary, 25C offers as much as $3,200 in a single tax year.
Fast Facts about 25C
Eligibility
25C tax credits apply to your primary residence, not additional properties you don’t live in, like rentals or vacation homes. However, there are tax credits available for certain improvements for second homes.
Also, keep in mind that you’re only eligible for a tax credit if you have tax liability – meaning you owe taxes at the end of the year. If you don’t owe anything, you won’t have money added to your tax refund.
The eligible upgrades include:

Air Conditioning
- 30 % of the project cost up to $600 maximum
- Split systems must be ENERGY STAR® certified with SEER2≥ 16
- Packaged systems must be ENERGY STAR® certified with SEER2 ≥ 15.2, EER2 ≥ 11.5

Heat Pump
Heat pumps are a leading way to heat and cool your home more efficiently. Instead of burning fuel to generate heat, heat pumps transfer heat energy in either direction to provide cooling or heating in all seasons.
Appliances like heat pumps are ranked according to CEE tiers. Higher tiers represent higher levels of efficiency. Air source heat pump efficiency is measured in Heating Seasonal Performance Factor (HSPF), which is the heat output divided by the electricity used over the heating season (BTUs per watt-hour).
Electric or natural gas heat pumps may be eligible for up to $2,000, but they must meet the highest efficiency standards available at the time you claim the credit. This typically means ENERGY STAR® appliances with CEE tiers of 1, 2, or 3.
- Air source heat pumps have additional requirements:
- 30% of the project cost, up to $2,000 maximum
- Ducted split systems must be ENERGY STAR® certified with HSPF ≥ 7.8, SEER2 ≥ 15.2, EER2 ≥11.7
- Packaged systems must be ENERGY STAR® certified with SEER2 ≥ 15.2, EER2 ≥ 11.5
- Ductless mini-split (non-ducted) systems must be ENERGY STAR® certified with SEER2 ≥ 16, EER2 ≥ 12, HSPF2 ≥9

Insulation and Air Sealing
Insulation and air sealing, otherwise known as weatherization, prevent heating and cooling loss from leaks. You may be able to claim credit for weatherization materials like:
- Insulation batts
- Blow-in insulation fibers
- Rolls of insulation
- Expanding spray foam insulation
- Rigid boards of insulation
- Foam-in-place insulation
- Specialized caulk, tape, foam, and sealants
All weatherization supplies must meet the Department of Energy’s recommended R-values for your climate zone to qualify for a tax credit.

Water Heaters
To qualify for a tax credit, all weatherization supplies must meet the Department of Energy’s recommended R-values for your climate zone. Heat pump water heaters also qualify for an increased annual credit limit of $2,000.
Testimonials
What Our Customers Say About Us
As usual we are very satisfied with Goettl
We had a concerning plumbing issue, and Geo was able to diagnose the problem with impressive speed and accuracy. What I really appreciated was that he took the time to clearly explain what was wrong, showed me what he was looking at, and gave me honest, practical advice on the best solution.
He had the issue resolved in no time at all. The whole experience was seamless, from the quick scheduling to the efficient and high-quality work. It’s so refreshing to find a technician who is not only a master of his craft but also a genuinely kind and trustworthy person.
A huge thank you to Geo and the entire team at Goettl. You have a customer for life! If you need a plumber, ask for Geo—you’ll be in the best hands
I am very thankful for their help today.
Blake was absolutely amazing from start to finish. He was friendly, personable, and genuinely took the time to listen to my concerns. He explained everything clearly, provided sound and honest guidance, and never once made me feel pressured. His professionalism and genuine care made it easy for me to trust him and feel confident in moving forward with this company.
Technicians like Blake are the reason customers stay loyal—he definitely deserves a raise. I’m truly blessed to have encountered him today. Thank you, Blake, for your outstanding service!
Thank you!!!
Original order of checking thermostat. And why heat would not kick on right away
It was taking several degrees to heat up the house. Air conditioning works great.
He went and checked thermostat and suggested a new thermostat. $800 for two installed. 👀
He then checked furnace in attic.
The fresh air exchanger was pretty dusty and he could clean it for under a hundred $. I said go ahead because exchanger runs ten minutes per hour to keep fresh air circulating. So price was $99. Still a lot for cleaning a screen.
It seemed to have worked in conjunction with thermostat because it’s been working properly since he left.
Im glad I didn’t spend $800. But only $228 .
Hope thermostat continues to work well
Thank you Jackie.
I still think prices are very high. You can buy and install a thermostat yourself for $175. With a $75 rebate. That’s quite a difference.
Fast forward $22,000.00, 2+ months, 7 techs and 12 visits later... nothing works!
I have called off from work more times than I care to remember, so that a tech could come out to fix the problem.
We had ZERO problems before this company made a sale to deliver faulty equipment. Every excuse has been given (i.e. damper switches, mother boards, duct work) and finally the manufacturer! A few techs that visited have all said that there are multiple homes having the same issue.😑 Evidence that Goettl makes a sale and installs a product that they know doesn't work in some homes.
Instead of being honest, they make the sale and they know that their product will potentially ruin a home. So, here we are as of Tues, Nov 25, 2025 and I don't have heat on every level of my home.
Again, I've had heat and air on every level for the past 18 years!!!! This is so awful and I only wished that I had gone with Sierra NV like my friends. My home feels violated and I'll never trust another "business" after this.
Guess who will be here tomorrow to "fix" the problem. Review friends, save yourself the trouble and find another company.
Fike Family- Las Vegas
Tyler Leija came to my home and flushed out my two water heater’s. This had never been done to the home since it was purchased in 2017. Let me tell you the stuff that came out of the water heater’s was an eye opener! It was filled with so much calcium deposits. Tyler was very knowledgeable and explained everything going on. Thank you Tyler for coming to our home and flushing out our water heaters.
Chris R came out for our Sadie Membership inspection and review before the cold comes here in TX. He did a fantastic job and really knows his stuff. Thank You!
He did his job professionally. Very pleased with the service.
Mike provided truly exceptional service. From the moment he arrived, it was clear he was extremely knowledgeable; he quickly and confidently diagnosed a very tricky issue that we had with our pipes, explaining everything clearly and answering all of our questions with patience. He also installed our new water heater and did an outstanding job. If you need a plumber who gets the job done right the first time, we highly recommend Mike. Thank you!
Was very friendly and informative.
Good job Eric!
Thank you Goettl!
Edgar, the Technician, was knowledgeable, came in with a purpose, and very professional. Customer Service was superb, and his brainstorming, to include problem solving was impeccable.
Jason and Marco operated like a well oiled machine with one replacing the AC unit while the other replaced the furnace. Clean up was excellent and the system works beautifully now.
Frank was wonderful and he allowed us the opportunity to evaluate several aspects of our current circumstances with our water heater. Frank was friendly and professional and we look forward to working with him in the future. Thank you, Frank!
I highly recommend Goettl Air Conditioning and Plumbing! Shane Smith, their plumbing service technician, provided outstanding service when we needed a new water heater. He arrived promptly, explained all options clearly, and guided us through the process with professionalism and friendliness. Shane's knowledge and patience made our decision-making easy. We're grateful for his help and impressed by Goettl’s efficient, customer-focused approach. Five stars for Shane and Goettl.
Zach Carlisle from Goettl Air Conditioning & Plumbing did an incredible job installing our new water heater. His exceptional professionalism, courtesy, and expertise made the entire process seamless. Zach kept us well-informed, worked efficiently, and left our home spotless. He even took the time to educate us on water shut-off procedures. Zach truly embodies the values of excellent customer service and craftsmanship. Kudos to Goettl for having such a talented and dedicated installer!
Fixed our water heater
Wonderful company to work with
Professional technicians
I'm very impressed with Goetel ! We just started using them and so far so good!
Oh, and he even brought a Sadie dog toy for my pups! 😁
Thank you,
Greg Sanches
Addendum: Furnace inspection on hold until vents can be don; but new Furnace/AC coming in soon.
Round two: Plumbing with Skip Yonker!!
Thank you Skip for making the whole process more understandable! Very informative and got right to work!! He explained and confirmed what Pablo had pointed out originally. New Water heater coming soon.
Round three: Furnace/AC in!!! Thank You Marco and Rafael for coming in extra early to get started! Had work today but they stayed and got everything installed. I honestly felt very comfortable leaving them here to get the job done!
I have recommended you to two friends already!! They will be calling you soon ☺️
Round four: New water heater pending. To be completed Friday!! Super excited!!
Explained everything clearly and was very respectful..
Thanks for a job well done Frank.

Our Story
It all started with a flashlight.
Our CEO, Ken Goodrich, was a 10-year-old boy holding a flashlight for his dad as he worked on an air conditioner for a customer. His father was an independent technician in Las Vegas who admired the longevity and quality of Goettl products. In 2013, Goodrich purchased Goettl Air Conditioning & Plumbing and has since expanded the company across Arizona, Nevada, and Texas.








































































































































































































