Get your furnace installation done right: Our EPA certified HVAC technicians will find the most efficient furnace model for your home and budget. We ensure peace of mind with your new furnace through our ‘Love It Or We Fix It’-Guarantee.

» transparent estimates

»  100% customer satisfaction

»  we offer convenient financing

A photo of a successful furnace installation in phoenix arizona

Our 4 pillars to get your furnace installation done right

1. Assessing Customers Needs

We assess your needs to guarantee installing a new furnace that makes your home a comfortable oasis during the colder months in Phoenix.

2. Analyzing Current Installation

We analyze the current furnace installation -from duct work issues to air distribution - making sure we address current issues in the installation process of your new furnace.

3. Custom-tailoring Solution

We will include you into the decision making process by presenting a custom-tailored solution & estimate that takes your needs and current issues into consideration.

4. Installing New Furnace

We start installing your new furnace as soon as 24 hours after approving the estimate. Our installs come with a 2 year labor and 10 year parts warranty.

4+ Decades Of Experience

Comfort One serves as Phoenixs go-to furnace installation service with over 4 decades of combined experience.

530+ HVAC Systems Installed

With over 530 HVAC systems installed, we're prepared to deliver custom-tailored quality solutions fast.

2,100+ Happy Customers

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

Understand the cost of replacing your old and installing a new furnace in Phoenix

Trane - Brands we install
Carrier - Brands we install
Lennox - Brands we install
Coleman - Brands we install
York - Brands we install
Goodman - Brands we install

1. Cost of the new furnace

The cost for a new furnace can vary widely depending on the brand and quality of the furnace, the capacity and size, the AFUE rating, and additional comfort features that the furnace offers.


Here at Comfort One we help you find the most efficient furnace model for your home and your budget. We will assess your needs to understand what you really need – helping you to make the best decision for your pocket and your family.

2. Labor costs

Another significant portion of your overall expense will be the labor costs charged by the HVAC company. These labor costs can fluctuate depending on the expertise of the furnace installer, the and the location where the new furnace is installed.


When you choose Comfort One for your furnace installation, you’re getting EPA certified HVAC technicians who get the installation done right the first time, with no hidden fees or surprises. Backed and ensured by our ‘Love it or we fix it’ Guarantee.

3. Ductwork modifications

If we do a retrofit furnace installation, we will always check your current ductwork before installing a new furnace. Damaged ductwork can wear cause higher energy bills and prevents the furnace from heating your home properly. If we need to repair your ductwork, we will always inform you upfront.

4. Warranty and service packages

Extended warranties or service plans can add to the upfront cost but may offer peace of mind and long-term savings in the case of repairs or maintenance.


With Comfort One you receive 10 year parts warranty on your new heat pump unit and a 2 years labor warranty included in any install. For a fee, you can upgrade to 10 years of labor warranty.

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.

Understanding the factors that affect the cost of your new furnace

1. Type of furnace

Different types of furnaces come with different price tags. Gas furnaces, often known for their efficiency, generally cost more upfront than electric furnaces but offer savings in the long run heat pumps, while efficient, can be expensive to install but offer heating and cooling capabilities.

3. Brand & quality

Well-known furnace brands that are recognized for their reliability, durability, and advanced features tend to come with a higher price tag. While opting for a cheaper, less-known brand might save you money upfront, it could end up costing more in maintenance and early replacement.

3. Efficiency rating

Higher-efficiency furnaces may cost more upfront, but they pay off in the long run through lower utility bills. Models with a high Annual Fuel Utilization Efficiency (AFUE) rating are generally more expensive.

4. Size & capacity

Furnaces come in different sizes, measured in British Thermal Units (BTUs). The larger the furnace, the more expensive it is. It’s crucial to get a furnace that is appropriately sized for your home to ensure efficiency and comfort.

Our 3s step process to deliver Phoenix's best furnace installation services

1. Schedule Estimate

Upon initial contact, we promptly schedule a first visit to meet in person, get to know each other & get you a detailed estimate.

2. Needs Assessment & Estimate

Upon arrival our EPA certified technician will find out about your needs & current system. After analyzing the status quo, he will present you with the most efficient furnace for your home and budget.

3. Post Installation Follow-Up

Post-furnace-installation, we initiate a dedicated follow-up, either through a walk-through or a post-service call, to guarantee full customer satisfaction and tend to any residual concerns.

Efficiency and costs compared: Single-Stage vs. Two-Stage vs. Variable-Speed Furnaces

1. Single-stage furnace

1.1. Efficiency:

Single-stage furnaces are relatively less efficient compared to their multi-stage counterparts. Because they operate at one consistent speed, they may end up running at full capacity even when lesser heating is required, consuming more energy than necessary.

1.2. Costs:

The initial cost of a single-stage furnace is quite affordable, making it an attractive option for budget-conscious homeowners. However, the lack of energy-saving features means higher long-term utility bills.

1.3. Best Suited For:

  • Smaller homes
  • Milder climates
  • Homeowners seeking an affordable, straightforward solution

2. Two-stage furnace

2.1. Efficiency:

Two-stage furnaces offer better efficiency than single-stage systems. Their ability to operate at half or full speed depending on the heating needs allows them to be more energy-conservative.

2.2. Costs:

While two-stage furnaces come at a higher initial cost, they usually pay off in the form of reduced utility bills due to their more efficient operation.

2.3. Best Suited For:

  • Medium to large homes
  • Climates with variable temperatures
  • Homeowners seeking a balanced mix of affordability and efficiency

3. Variable-speed furnace

3.1. Efficiency:

Variable-speed furnaces offer the highest efficiency among the three types. These systems adapt to both indoor and outdoor temperatures, ensuring that your heating needs are met without consuming excessive energy.

3.2. Costs:

The upfront cost of a variable-speed furnace is the highest. However, the ultra-efficient operation usually results in significant long-term savings on utility bills, making it a wise investment for the future.

3.3. Best Suited For:

  • Larger homes with complex layouts
  • Extreme climates
  • Homeowners willing to invest in the highest efficiency and comfort

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 is following up on a new gas furnace and gas furnace installation in Phoenix Arizona

Financing your furnace installation: What you need to know

Why financing?

Installing a new furnace involves various costs, including the price of the unit itself, labor, and any additional materials or modifications needed for the installation. While some can pay for these costs outright, financing provides another pathway to achieve your comfort needs without straining your budget.

Our partnership with Synchrony

As part of our dedication to integrity, transparency, and 100% customer satisfaction, we’ve partnered with Synchrony, a premier consumer financial services company. Together, we offer financing solutions tailored to your specific needs. Whether you need short-term or long-term financing, our partnership with Synchrony ensures you get flexible terms and competitive interest rates.

Benefits of financing through Comfort One and Synchrony

1. Access to premium furnaces

Financing allows you to invest in a higher-quality, more efficient furnace without the upfront cost, which could save you money on energy bills in the long run.

2. Flexible terms

Our financing options through Synchrony offer various repayment terms, allowing you to select one that aligns with your financial situation.

3. Quick approval

The quick and easy application process means you can get your new furnace installed promptly, ensuring your comfort is restored in no time.

4. Credit score

On-time repayments will reflect positively on your credit history, benefiting you in the long run.

Our Furnace installation service areas in Phoenix, Arizona


Paradise Valley

Paradise Valley Village

North Scottsdale


Cave Creek

Frequently asked questions about furnace installation in Phoenix

Phoenix is known for its hot summers, but the winters can be quite chilly too. A two-stage or variable-speed furnace is generally recommended for our climate, as these systems can adapt to the varying temperatures more efficiently.

The cost varies depending on several factors, such as the type of furnace, the complexity of installation, and whether new ductwork is required. Contact us for a detailed estimate tailored to your specific needs.

Typical furnace installations usually take between 4 to 8 hours. However, more complex installations, which may involve ductwork alterations or other modifications, can take longer.

If your furnace is over 15-20 years old, requires frequent repairs, or is causing your energy bills to spike, it may be time for a new furnace installation.

We do offer financing options to help make your investment more manageable. Please contact us to discuss the various plans we have available.

AFUE stands for Annual Fuel Utilization Efficiency. A higher AFUE percentage means the furnace converts a greater amount of fuel into heat, thus being more efficient. This is an important consideration for long-term costs.

Yes, we offer different warranty options depending on the type of furnace you choose. Our team will discuss these options with you in detail. Generally we offer 10 year parts warranty and a 2 year labor warranty on all new installations.

Regular maintenance is crucial for optimal performance. This usually includes filter changes, bi-annual inspections, and timely repairs.

Scroll to Top