AC Repair Desert Mountain | Same-Day Service | Comfort One


As Desert Mountains most reliable HVAC, we are here for you. On time, every time! Your comfort, our commitment. We deliver American quality service and treat you with genuine care.


» family owned & locally operated

» 100% customer satisfaction

» driven by integrity, transparency & honesty

HVAC Desert Mountain Arizona Comfort One Air Conditioning LLC

From repairs to installations & maintenance: Our HVAC services in Desert Mountain, AZ

HVAC installations

If you are looking to replace or install a new HVAC system in your Desert Mountain home, Comfort One is happy to help! From AC installations to heat pump, ductless mini split, furnace and duct work installations. Our EPA certified HVAC technicians are here to help you find the most efficient and cost-effective HVAC system for your home and budget.

HVAC repairs

If your systems heating or cooling broke down in Desert Mountain, we are here and deliver fast & reliable HVAC repairs. Our EPA certified HVAC technicians are specialized in diagnosing and repairing your system ‘On Time, Every Time!’. Our commission-free technicians who work for you pocket and put your satisfaction first – always.

HVAC Maintenanace

Maintaining your HVAC system bi-yearly is key to it’s efficiency and longevity. We offer HVAC maintenance in Desert Mountain for any brand and type of system. Prevent costly repairs and save on your monthly energy bill by joining our Comfort Club. We ensure maximum efficiency and longevity for your system at only $205 per system per year.

4+ Decades Of HVAC Experience

Comfort One serves as Scottsdale's go-to HVAC with over 4 decades of combined experience.

2,250+ HVAC Systems Repaired

With over 2,250 HVAC systems repaired & replaced, we're prepared to deliver reliable & cost-efficient solutions fast.

2,100+ Happy Customers

As an expert in HVAC services, we are here for you when you need us. Ready to serve your families comfort and safety.

Blending Tradition & Technology: We Deliver The Best HVAC Services in Desert Mountain, AZ

At Comfort One Air Conditioning, we understand the unique blend of luxury and natural beauty that defines Desert Mountain in Scottsdale, Arizona. Our expertise in providing top-notch HVAC services is particularly suited to meet the high standards of this exclusive community.


In Desert Mountain, where each home is a testament to elegance and architectural finesse, our HVAC solutions are designed to complement these luxurious living spaces. We recognize the importance of maintaining a comfortable indoor environment that matches the exquisite outdoor scenery. Our team has honed its skills to ensure that our systems integrate seamlessly with both the modern and traditional styles prevalent in the community, enhancing the overall living experience.


The challenging desert climate of Arizona, characterized by hot summers and mild winters, demands HVAC systems that are both robust and efficient. Over the years, Comfort One has developed a deep understanding of these requirements. We specialize in installing and maintaining systems that provide consistent, reliable comfort year-round, ensuring that residents can enjoy their home environment, regardless of the season.


Our journey in Desert Mountain has been marked by a commitment to excellence and a deep respect for the community’s unique lifestyle. We have collaborated with homeowners to elevate their living spaces, offering HVAC systems that promise unparalleled comfort and efficiency. Our approach goes beyond mere technical service; it’s about enhancing the luxurious lifestyle that Desert Mountain is renowned for.


Choose Comfort One Air Conditioning for your Desert Mountain home. We pledge to deliver HVAC services that reflect the community’s prestigious nature, ensuring your home remains a haven of comfort and luxury in the heart of the Arizona desert.

Our Commitment To Excellence As Desert Mountain's #1 HVAC Company Pays Off

3 reasons why we are proud to NOT be the cheapest HVAC company in Desert Mountain, AZ

1. The hidden costs of going cheap

At first glance, opting for the cheapest HVAC company may seem like a win for your wallet. However, cheaper service often comes with hidden costs. Lower-quality parts, inexperienced technicians, and poor service often lead to frequent repairs, escalating costs, and compromised comfort.

2. The myth of 'Best system for the cheapest price'

A premium HVAC system is an intricate machine that requires high-quality parts and expert installation. So when a company promises the best system for the cheapest price, it's often too good to be true. Compromising on quality to cut costs leads to inefficiencies, frequent breakdowns, and ultimately higher expenses in the long run.

3. Why quality is worth the investment

With Comfort One, what you're paying for is peace of mind. We use only American-made parts known for their unmatched durability and performance. Our technicians are paid by the hour, commission-free experts who are focused solely on delivering top-notch service. And our warranties? As straightforward and genuine as they come.

American Quality Parts & Service

Excellence is a hallmark of American parts & service. As an owner-managed and operated business, we embody this through cleanliness, reliability & our highly trained HVAC technicians, who use American-made parts with unmatched durability and performance.

Our Technicians Are Commission-Free

Our humbly confident HVAC technicians are paid by the hour rather than by commissions. This ensures that they're focused on delivering unparalleled service, rather than upselling products.

We Are On Time, Every Time!

We understand that your time is valuable, and we respect it. Whether you receive a phone update or a text message letting you know our HVAC technician is en route, you can be confident that when we say 1-2 o'clock, we're aiming for 1.

We Have Honest Warranties

At Comfort One, we believe that a warranty should be straightforward and genuine. We offer only product and labor warranties. With us, you'll never be trapped into paying for extra HVAC services just to ensure your warranty remains valid.

Serving Desert Mountains HVAC Needs with expertise and integrity

We understand that every building and home has unique needs. We specialize in timely HVAC repairs, getting your HVAC installation done right the first time, improving your indoor air quality and delivering supreme bi-yearly HVAC Maintenance. Our EPA-certified and commission-free technicians are equipped with the knowledge and experience to diagnose and repair a range of common issues swiftly and efficiently. Here is a more detailed explanation about our HVAC services we bring to the Desert Mountain Community in Scottsdale, Arizona:

During the peak of summer or the depths of winter in Phoenix, the last thing you want is an HVAC system that doesn't regulate temperature properly. You might notice certain rooms feeling too warm or too cold, which could be due to uneven heating or cooling.

Sometimes, the thermostat might give inaccurate readings, making it impossible to set a comfortable temperature.

It's not uncommon to find HVAC systems failing to produce warmth or air conditioners not blowing cold air.

At Comfort One, we specialize in diagnosing and rectifying these issues, reinstating the comfort and balance in your home's temperature settings.

No one likes being startled by sudden noises like banging, squealing, or grinding coming from their HVAC units. These noises might indicate problems like compressor failures, heat exchanger issues, or burner malfunctions. We promptly address these concerns, performing necessary repairs or replacements to prevent further damage and prolong the life of your HVAC system.

An inefficient HVAC system can significantly inflate your energy bills. You might notice your system working overtime, struggling to maintain desired temperatures or consuming more energy than usual. Issues like poor insulation, outdated equipment, and thermostat calibration problems can be the culprits. Our EPA certified HVAC technicians offer solutions that not only enhance the energy efficiency of your system but also contribute to a greener environment.

A poor installation can significantly affect the efficiency and lifespan of your HVAC system. Issues like incorrect sizing or improper practices can lead to increased energy consumption and frequent breakdowns. At Comfort One, we take pride in our precise HVAC installation process, guaranteeing a perfect setup that matches your specific needs and operates at peak efficiency.

HVAC Airflow issues can manifest in various ways, such as reduced airflow from vents or strange fluctuations in air pressure. You might experience stuffy rooms or areas where the air seems stagnant. This could be due to blocked vents, duct leakage, or issues with fan motors, belts, or bearings. Our EPA certified HVAC technicians are trained to identify the root cause of these problems and repair them swiftly, ensuring a steady flow of fresh, clean air in every nook and cranny of your home.


Poor indoor air quality can lead to a range of health issues including allergies and respiratory problems. Excessive humidity might create a damp environment promoting mold growth, while too much dryness can irritate your skin and respiratory tract. Your living space might harbor dust, allergens, or even foul odors, indicating a compromised HVAC system. At Comfort One, we prioritize your health and wellbeing by offering solutions that purify your indoor air, creating a safe and comfortable living environment.

Leaks in the HVAC system are not just a nuisance, but they can also pose significant safety risks. You might notice water pooling around your unit indicating condensate drain issues or experience reduced cooling efficiency due to refrigerant leaks. Gas leaks in furnaces can even lead to hazardous situations. Our experts at Comfort One excel at identifying and fixing these leaks, ensuring your home remains safe and your system operates efficiently.

An aging HVAC system can often lead to frequent breakdowns and escalating repair costs. It might not heat or cool as effectively, and the equipment might show signs of wear and tear. At Comfort One, we provide honest advice on whether to upgrade or repair your existing system, always aiming to extend the lifespan of your HVAC setup while ensuring optimum performance.

In this era of smart homes, your HVAC system should not be left behind. Issues with programmable thermostats or zoning systems can hinder the convenience offered by modern technology. Whether it’s integrating your HVAC system with smart home setups or addressing malfunctions in your existing automation systems, our technicians are adept at providing modern solutions that offer control at your fingertips.

In commercial spaces, HVAC issues can escalate quickly affecting productivity and comfort. Problems with rooftop units, large-scale chillers, or balancing issues in large buildings require expertise and precision. Our team specializes in addressing commercial-specific issues, providing solutions that keep your business running smoothly without any HVAC hiccups.

Safety concerns are paramount in any household. Problems like carbon monoxide leaks from heating systems or electrical issues causing fire hazards need immediate attention. We take these concerns seriously, implementing solutions that safeguard your home and ensure a safe operating environment for your HVAC systems.

Our 3 step process to deliver Desert Mountains best HVAC services

1. HVAC Service Appointment

Upon initial contact, we promptly schedule an appointment and call you a day before the scheduled service, reconfirming the appointment and discussing any additional requirements.

2. No-Obligation HVAC Service Visit

Upon arrival our technician will find out about your HVAC concerns & find the issue at hand. Once the issue is found, he will discuss how to fix the issue, give you an estimate and ensure that you are included in the decision-making process.

3. Your Feedback For Our Service

Our team is always looking out for ways to grow. After performing your HVAC repair or HVAC installation, we are all ears for your feedback. We guarantee full customer satisfaction and want to tend to any residual concerns.

Contact Us Today And Gain The Support of Desert Mountains Best HVAC Team

Comfort One Air Conditioning LLC

Phoenix, Arizona

Regular service hours:

Mo. to Sun. 08:00 AM – 05:00 PM

Contact us

Phone: (602) 247-6151

Enjoy Peace of Mind With Our 'Your comfort or we will make it right'-Guarantee

At Comfort One, your satisfaction is our top priority. Every service and estimate we provide is clear and transparent, ensuring you’re always in the loop. We tailor our recommendations to fit your needs and budget. If anything doesn’t feel right, just remember our “Your Comfort Or We Will Make It Right” guarantee. We aim to exceed your expectations every time, ensuring you always feel valued and cared for. 100% satisfaction is our commitment to you.

Tapani Ojalehto, Owner of Comfort One Air Conditioning LLC, HVAC Service Contractor in Paradise Valley Village following up on HVAC repair and HVAC installation

Frequently Asked Questions About Our HVAC Services in Desert Mountain

The lifespan of an HVAC system in Scottsdale can vary, but generally, you can expect the system to last about 10 to 15 years, depending on usage, maintenance, and quality of the installation. The extreme heat in Scottsdale can put additional strain on the system, potentially shortening its lifespan. Regular maintenance can help extend the life of the unit.

Here are some common signs that your HVAC system may need repair:

  • Unusual noises such as rattling, buzzing, or squealing
  • Inadequate cooling or heating
  • Unexplained increases in energy bills
  • Frequent cycling on and off
  • Water leaks around the unit
  • Bad odors emanating from the vents
  • Inconsistent temperatures throughout the home

It's recommended to have your HVAC system serviced at least once a year. For residents in Scottsdale, where the system may be working overtime due to extreme temperatures, you might want to consider servicing twice a year: once in the spring before the hot weather starts, and once in the fall before the cooler temperatures set in.

The cost of HVAC repairs can vary widely depending on the specific issue and the type of repair needed. Here are some common HVAC repairs and their estimated cost ranges in Scottsdale, Arizona:

  • Refrigerant recharge: $200-$500
  • Repair or replace fan motor: $200-$600
  • Repair or replace compressor: $1,300-$1,800
  • Clean or replace clogged or dirty filters or coils: $100-$400
  • Fix leaks in the refrigerant system: $200-$1,500

It’s important to note that these are just estimates and the actual cost of your HVAC repair may vary depending on the specific issue and the rates charged by your local HVAC contractor.

When choosing an HVAC contractor, consider the following:

  • Licensing and Certifications: Make sure the contractor is licensed and certified to work in Arizona.
  • Experience: Look for a contractor with experience, particularly with the make and model of your system.
  • Reviews and Recommendations: Check online reviews and ask for recommendations from friends and family.
  • Estimates: Get multiple estimates to compare costs and services offered.
  • Warranties and Guarantees: Check what kind of warranties or guarantees are offered on the work.
  • Install a programmable thermostat to manage temperatures efficiently.
  • Keep doors and windows closed when the HVAC is running.
  • Seal any gaps or leaks in ductwork, windows, and doors.
  • Use energy-efficient appliances and lighting to reduce overall power consumption.
  • Regular maintenance to keep the system running efficiently.
  • Insulate your home well to reduce the workload on your HVAC system.
  • Extended lifespan of the unit
  • Improved energy efficiency, leading to lower energy bills
  • Reduced risk of costly breakdowns
  • Better indoor air quality
  • More consistent temperatures throughout the home
  • Regular Maintenance: Keep your HVAC system clean and well-maintained.
  • Air Filters: Replace air filters regularly, and consider using high-efficiency particulate air (HEPA) filters.
  • Ventilation: Make sure your home is well-ventilated; use exhaust fans in bathrooms and kitchens.
  • Humidity Control: Use a humidifier or dehumidifier to maintain an ideal indoor humidity level.
  • Air Purifiers: Consider using an air purifier to remove particles and pollutants.
  • Plants: Some indoor plants can improve air quality by absorbing toxins.
  • Regular Maintenance: Annual or semi-annual professional check-ups can extend your system's lifespan.
  • Proper Use: Follow manufacturer guidelines for use and avoid overburdening the system.
  • Timely Repairs: Address minor issues before they become major problems.
  • Filter Changes: Regularly replace or clean air filters.
  • Duct Cleaning: Keep the ductwork clean to improve efficiency.
  • Lack of Maintenance: Poor maintenance is a leading cause of system failure.
  • Dirty Filters: Can reduce air flow and efficiency.
  • Refrigerant Leaks: Can severely impair the cooling capability.
  • Thermostat Issues: Can result in poor temperature control and system cycling.
  • Electrical Failures: Such as failing capacitors, corroded wires, or circuit issues.
  • Cost Savings: More efficient systems often mean lower energy bills.
  • Better Performance: Improved temperature control and consistency.
  • Environmental Impact: Lower energy consumption means a smaller carbon footprint.
  • New Features: Like programmable thermostats, smart controls, and better air quality options.
  • Potential Rebates: Some governments and utilities offer rebates for upgrading to energy-efficient systems.

Selecting the right size is crucial. An undersized system won't adequately cool or heat your home, and an oversized system will cycle on and off too frequently, reducing efficiency and lifespan.

  • Manual J Calculation: This is a standardized calculation professionals use to determine the proper size.
  • Consult a Professional: A certified HVAC technician can provide the most accurate recommendations.
  • Consider Local Climate: In Scottsdale, the focus will likely be more on cooling rather than heating, affecting the size and type of unit you need.
  • Central Air Conditioners: Common in many homes, good for large spaces.
  • Heat Pumps: Can provide both heating and cooling, efficient but may be more expensive upfront.
  • Ductless Mini-Splits: Good for homes without existing ductwork or for room-specific conditioning.
  • Geothermal Heat Pumps: Highly efficient, but expensive to install.
  • Swamp Coolers: Also known as evaporative coolers, are efficient in dry climates like Phoenix but are less effective when humidity is high.
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