AC Repair & Maintenance
Fast, reliable AC repair and preventive tune-ups to keep you cool through a Phoenix summer.
Heating · Cooling · Insulation
AC repairs, heating service and system installations from a local, family-owned team you can trust. We also help improve comfort with home insulation and ductwork solutions.
Attic insulation & replacement
Current offers
Free estimates and same-day or next-day HVAC appointments. Each offer applies only to the service it names.
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Complete HVAC services
Klein Heating & Cooling provides professional residential and commercial HVAC services in Phoenix, AZ and surrounding communities. With more than 15 years of experience, our family-owned company delivers heating and cooling solutions backed by certified technicians, quality workmanship and a commitment to customer satisfaction.
Whether you need AC repair, heating maintenance, a new system or commercial HVAC service, we focus on finding the right solution for your property and your comfort, not the most expensive one.
Why Phoenix homeowners and businesses choose Klein:
Reliable, long-lasting HVAC solutions for your home or business.
Your comfort is our priority. We’re not happy until you are.
Our own in-house technicians are trained, certified and experienced.
Discover our services
Our Phoenix team repairs, maintains, installs and replaces heating and cooling systems for homes and businesses, and insulates Valley homes.
Fast, reliable AC repair and preventive tune-ups to keep you cool through a Phoenix summer.
Furnace and heat pump repair, tune-ups and thermostat work for chilly desert nights.
New central AC, heat pumps, mini-splits and smart thermostats, sized for Phoenix heat.
Duct repair, sealing, insulation and new runs for better airflow and lower bills.
Attic insulation and insulation replacement from the same local team that keeps you cool.
Repairs, rooftop units, replacements and maintenance plans for Phoenix businesses.
One home, three systems
Your heating and cooling system, ductwork and insulation work together. When one part falls short, rooms can feel uneven and comfort can suffer. Klein can help identify the issue and recommend the work your home needs.
Your AC and furnace or heat pump cool and heat the air for the whole house.
Ducts carry that air to each room. Leaks or crushed runs leave some rooms short.
Attic insulation helps keep the Phoenix heat out in summer and the warmth in on winter nights.
Home insulation
Whether you need new insulation or replacement of existing material, Klein can assess your home and explain the available options. If ductwork or HVAC performance is also part of the problem, we can help you understand how those systems connect.
iSame day · Next day appointments
We have proudly served Phoenix and surrounding areas for over 15 years with our own team of certified technicians. Request a callback to talk to one of our experts.


Meet the owner
Tomer Klein is the owner and founder of Klein Heating & Cooling. He started the company 15 years ago with a commitment to treating every customer like family.
Today, Tomer and his team serve Phoenix and surrounding communities with dependable HVAC service, honest recommendations and quality workmanship for homeowners and businesses.
Real reviews from real customers
Homeowners and property owners across the Valley mention our professionalism, responsiveness, honest recommendations and clear communication.
I needed a whole new system! I received assessments and estimates from four other companies, but I chose Klein Heating and Cooling and I’m very glad I did. My hat goes off to owner Tomer and his team of experts. He walked me flawlessly through the entire process from estimate to complete install and I could not be more pleased.
I needed a second opinion after noticing our AC wasn’t cooling down. The original quote was close to the cost of a new system. Tomer walked me through all the possibilities, including total replacement. His knowledge and integrity are unmatched! He was able to recharge my AC to extend its life, saving me thousands of dollars off the original quote.
We decided to replace our 14 year old condo split system before the heat really gets chugging here in Scottsdale. Tomer took a look at the unit top (4 story roof) to bottom, tested every function and said we could get another season or 2 out of it if we needed to. The estimate was clear and concise. From our agreement to installation was only 3 days. His crew was timely, courteous, efficient and FAST.
Extremely quick response time (so important for Arizona!) and they really took their time to analyze every aspect of our A/C to make sure we knew not only what needed to be done now, but also what needed to be done in the future. I expected a pretty hefty bill for such a white glove service, but was so surprised by how competitive the pricing was.
I had a new AC/Heating system installed. Because the airflow on one side of the house was a little sluggish, I had them check the situation out, and they determined a new return and larger ductwork would be more beneficial. The guys came out and made the changes. They are excellent to work with, honest, and keep their customers informed.
I called Klein Heating and Cooling when I heard a sound coming from my AC unit that just didn’t sound right. They came and resolved the issue within minutes. Charged me an honest fee, no up-selling at all. I would 100% recommend them and will use them in the future.
Very responsive and knowledgeable. They took the time to examine the entire system, and to answer all my questions. The team laid out specific recommendations and a plan for future maintenance that was very reasonable and logical. Highly recommend.
By far the most honest and professional company we have ever worked with. They arrived same day, inspected our unit, and called to let me know there was nothing wrong with it. We’re truly impressed by their integrity and professionalism. Klein HVAC will be our go-to company.
We researched several of the myriad of HVAC service providers in the Phoenix area and selected Klein Heating and Cooling. We were most impressed by its overall professionalism, successful track record and capabilities. Tomer Klein is a highly dedicated and experienced individual and a genuine asset to this industry.
First time using Klein and I highly recommend. My plumber referred them and they are now my go to for any AC work and maintenance. Prompt, courteous and very professional.
We almost made the mistake of going with some corporate HVAC company rather than developing a relationship with a ma & pa business like this. If you’re looking for a team you can trust and a job done right, give them a call!
Great service, quick response, no salesmanship, they even talk about prevention. I’m impressed. I will definitely use them again and recommend their service.
Tomer on the job
Tomer still runs jobs himself, from tune-ups and repairs to attic installs and commercial rooftops.
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iInsured · Licensed · Bonded
We are licensed, bonded & insured, and we take pride in our knowledge and expertise. If you need your A/C repaired, replaced or maintained, you came to the right place.

Before & after
Typical results from the jobs we do every week, from worn-out condensers and torn attic ducts to thin attic insulation. Drag the slider to compare.

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iFinancing
A new HVAC system is a significant investment. Klein Heating & Cooling offers financing options for qualified customers to help make eligible heating and cooling replacements more manageable. Ask our team about current options, eligibility requirements and available terms.
Ask About FinancingFinancing may be available to qualified customers for eligible HVAC installations and replacements. Contact us for current terms and eligibility.

Service areas
Residential and commercial HVAC throughout Phoenix and the Valley, including Scottsdale, Tempe, Mesa, Chandler, Glendale, Peoria, Surprise, Goodyear and surrounding areas.
Frequently asked questions
Something else? Call (602) 377-6520 and talk to one of our experts.
Residential and commercial HVAC services including AC repair, heating repair, maintenance, HVAC installation, replacement and ductwork services throughout Phoenix and surrounding communities.
Yes. Klein Heating & Cooling is a family-owned HVAC company serving Phoenix and surrounding communities, with more than 15 years of experience.
Same-day and next-day appointments are available depending on scheduling and service needs.
At least once a year is a good rule, with air conditioning ideally checked before Phoenix’s hot summer season. Your equipment, usage and the manufacturer’s recommendations matter too.
System age, how often it needs repairs, efficiency, comfort issues and the cost of the repair all help decide. We’ll inspect the system and tell you honestly which makes more sense.
Financing options may be available to qualified customers. Contact the team for current terms and eligibility.
Yes. Klein provides residential and commercial HVAC repair, maintenance, installation and replacement.
Yes. We install attic insulation and remove and replace old or damaged insulation in Phoenix-area homes, as a service of its own. You don’t need HVAC work to book an insulation estimate.
Look for licensing, insurance, technician qualifications, experience, genuine reviews, clear estimates and a local service presence.
Free estimate · No obligation
Tell us what’s going on and where. We’ll call you back promptly to book a time that suits you, often the same or next day.
Call us today(602) 377-6520It takes under a minute. We’ll call you back to book your free estimate.
Or call (602) 377-6520