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
- January 1, 2023, through December 31, 2032
- Up to $600 per item (up to $1,200 total credit) for fossil fuel systems with elevated efficiency limits, breaker panels, and insulation
- 30% of total cost (up to $2,000) applicable for heat pumps and heat pump water heater (HPWH) installations that meet or exceed the highest performance tier set by the Consortium for Energy Efficiency (CEE)
- 30% of the total cost (up to $600) for ENERGY STAR® certified central air conditioners.
- Resets annually, allowing households to claim any installations completed within the tax year
- Must have tax liability to offset with a tax credit (not a tax refund)
- Homeowners may qualify for a tax credit and rebate for the same project
Eligibility
- Be a taxpayer living in a single home or apartment
- Purchase or install upgrades
- Upgrade an existing home (no new construction)
- We Comply with all Local AND State Safety Codes
- EPA COMPLIANT INSTALLATION
- Meet efficiency guidelines for weatherization upgrades (Insulation, such as batts, rolls, blow-in fibers, rigid boards, expanding spray, weatherstripping, caulk, and air seal).
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









He did a great job for us



I purchased their top-tier 4-star, two-stage system on June 13, 2026 after being advised that repairing my 11-year-old unit wasn't worthwhile. The system was installed the same day, but it failed within 24 hours.
Since installation, we've had six service calls. Different technicians have blamed low refrigerant, a frozen coil, zoning, a failed TXV valve, and a control board issue. Parts have been replaced, refrigerant has been added twice, yet the system still shuts down or fails to cool our home reliably. Despite repeatedly stating the unit was "working at 100%," it continued to malfunction.
The most frustrating part has been the lack of accountability. When I asked why a brand-new system was already low on refrigerant and requested a leak test, I was told one wasn't necessary. The technician then left without repairing the system after saying our conversation was "verbally abusive," even though no profanity or personal insults were used. He also left my attic access panel damaged.
We've missed two days of work, had to leave our home because of the heat, and spent nights sleeping in our toy hauler. Management has offered no meaningful resolution beyond continuing to troubleshoot with the manufacturer.
A brand-new HVAC system should not require this many service calls in its first two weeks. If you're looking for a reliable installation and responsive customer service, I'd recommend looking elsewhere.



After continuing to deal with the same issue all week and having to suction the line multiple more times, I decided to call Goettl. They had Alex Nelson at my house within 2–3 hours, and the difference in service was immediately noticeable. Unlike the previous company, Alex actually seemed knowledgeable and thorough. He quickly identified that my line was severely clogged, drained both of my units, tested everything both inside and outside, and stayed to make sure the AC continued running properly before leaving.
I’m extremely pleased with the fast response time, professionalism, and the fact that Alex actually took the time to diagnose and fix the real problem instead of offering an expensive, unnecessary solution.


























Most recently, I worked with Ben & Kevin to fix a system that went out right as summer is heating up (yarg!). As always, the support was reliable, honest, and more than fair.
Thank you so much for being a company that I can trust! Your customer service is exceptional and it goes a long ways.
Thank you









What really stood out was Hector’s friendly personality and genuine commitment to helping me make informed decisions. He also shared several helpful maintenance tips and best practices to help extend the longevity and efficiency of my AC equipment, which I greatly appreciated.
It’s refreshing to work with someone who is not only highly skilled but also courteous and customer-focused. Hector’s attention to detail and dedication to excellent service made this a great experience from start to finish. I highly recommend Hector and Goettl for anyone needing HVAC or plumbing services.

Caelin did a thorough inspection and was very helpful in going over information on repairs.












It took 3, THREE plumbers to figure out how to install a piece of plastic in between the pipes, the first guy pretended he installed it. They insisted on replacing my faucet even though it was fine, but I thought fine whatever they promised a comparable one. It's not comparable. Ours was a nice brushed nickel with no magnet pieces. Theirs is a piece of crap where the handle has already fallen off!!
And that's just the plumbing!
For air conditioning they were supposed to be out between 2pm and 4pm, the guy wasn't going to be here until past 6 pm, and they wouldn't reschedule until I explained that it was past 6 pm, and I have to be up at 4 am.
Then when you call, you get AI instead of a real person.
This company is the worst I've ever dealt with and they pretend to be the best and overcharge. They pretend to give you discounts but we all know the discounts are fake as they make up the prices themselves.
I'll never use them again!









I recently had some ductwork installed at my residence and noticed I needed some repair to the attic entry and ceiling. Steve M. at Goettl was great! He made all necessary repairs and adjustments. He wasn't quite satisfied and asked if he could come back. Steve M. wanted to make additional adjustments, making sure the repair was done properly, to his and Goettl's standards. I was very happy with the work completed by Steve M. Thank you so much!





The day they arrived to inspect my a/c unit, they were very thorough & explained everything very clearly. Up to the day of installation.
They arrived on time and the work was completed before the time frame.
They were friendly, professional and clean.
I will recommend to everyone to call Goettl.













Alek had come the day before only to find that the replacement cartridges I had were incorrect & that the kitchen faucet needed to be rebuilt or replaced. Alek took time to provide me with the information I needed to get the correct cartridges & purchase the new kitchen faucet which he installed today.
This is the second time in the past several months that I’ve used Goettl (previously for sewer repairs). Both experiences exceeded my expectations & I highly recommend this company.



Connor was great!






























No one wants to deal with a freak water heater replacement, but if you have to it should be as easy as possible. I think Goettl is a little more expensive than some others, but they work professionally and take care of everything for you.
Update: From my water heater service, I got a free HVAC service. They came and checked the system over, and gave me some recommendations. I ultimately decided not to proceed with the suggestions today, but all service was very professional. They are very respectful of your home, and take a lot of care to not get anything dirty. Again, I would recommend Goettl for fast professional services for your HVAC or plumbing.

Protect membership on the spot. I highly recommend Goettl Air Conditioning & Plumbing. If Richard answers your call, take confidence in knowing you are in good hands.










Thanks Chris







Thank you Tai












Thanks, Jack


Update
Robert w/hvac did an amazing job today. He was very professional and worked diligently throughout his time at my home. Thank you!


















Great service and professional











8 am this morning TAYLOR and ANTHONY came to install the new units. They were here 10 1/2 hours. Taylor and Anthony were amazing. These Goettl technicians work so hard. If I had to walk up and down my stairs as many times as they did while carrying all that equipment, I'd have passed out.
KEN in the office is the man that holds it all together. Don't be fooled by all the HVAC commercials and ads. Go with Goettl. If I didn't have confidence in Goettl I wouldn't have spent $60,000 (1/2 cash and financed the rest) on new AC units and a water softener.















VERY VERY HAPPY.

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.