HVAC Installation

Complimentary Indoor Air Quality Appointment - With Tune Up

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Exp. June 30th 2026

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When your heating and cooling system can no longer keep up with Arizona’s demanding temperatures, it may be time for a new HVAC system. At Cool Willy’s Air & Plumbing, we provide professional HVAC installation in Tucson, AZ, helping homeowners upgrade to reliable, energy-efficient comfort systems designed for year-round performance.

Whether you’re replacing an aging air conditioner, upgrading your furnace, or installing a complete HVAC system for a new home, our experienced technicians will help you find the right solution for your comfort needs and budget.

For a limited time, schedule a tune-up and receive a Complimentary Indoor Air Quality Appointment to help improve comfort, airflow, and indoor air quality throughout your home.

Complete HVAC Installation Services

Your HVAC system plays a major role in your home’s comfort, efficiency, and energy usage. Our team installs modern heating and cooling systems built to handle Tucson’s extreme climate conditions.

Air Conditioning Installation

We install energy-efficient air conditioning systems designed to keep your home cool and comfortable during Arizona’s hottest months.

Heating System Installation

Whether you prefer a furnace, heat pump, or packaged system, we provide reliable heating installation solutions for dependable winter comfort.

Heat Pump Systems

Heat pumps provide efficient heating and cooling in one system, making them a popular year-round HVAC solution for Tucson homeowners.

Ductless Mini-Split Systems

Ductless mini-splits offer flexible zoned heating and cooling without the need for traditional ductwork.

4.9
Based on 1400 reviews
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Denise
3 weeks ago
JOHN! The nicest guy!! My house was hot and John gave me a cold bottle of water to start off with and now that Cool Willy's is officially my AC company, I will be calling them again!
Thanks so much for your honesty and integrity!
Melanie B.
3 weeks ago
Carlos and Matt were great. All our HVAC needs have been provided by cool Willy for almost 10 years. They are reliable and trustworthy. I highly recommend them
Michelle V.
3 weeks ago
Carlos is very friendly and professional
Mike M.
3 weeks ago
Carlos was very polite and professional. Walked me through everything. Very happy with him. Would ask for same tech again. Price was very fair.
Yvonne A.
3 weeks ago
Carlos was great and shared all the information of what he was doing along the way. Cool Willie’s did a great job by hiring such a great AC person
Liane D.
2 months ago
Noah and Colin from Cool Willy were absolutely outstanding!They were friendly, efficient and extremely informative. They provided detailed information on the options to repair or replace a16 year old unit. I HIGHLY recommend Cool Willy’s.
John B.
2 months ago
Noah and Colin were very professional. They were very detailed in the service provided, showing pictures and explaining what we were looking at. I would highly recomend their services.
Drew G.
2 months ago
Carlos is the man. Cool Willie’s keeps it cool.
Mike M.
2 months ago
Good baseball fan!
Angela M.
4 months ago
Noah did an outstanding job today servicing our A/C unit and doing a thorough inspection. He gave me lots of information to help me understand the options to repair or replace the aged unit. His communication was very helpful.
julie K.
5 months ago
We needed our duct work cleaned out and some other HVAC system maintenance. I usually use another company and they quoted me a rather hefty price for what needed to be done so I decided to shop around. Glad I did.
Cool Willy’s is a locally owned company that prides itself on delivering quality service and supporting the local community, something I strongly believe in. Noah and Carlos arrived on time and they got right to work assessing our situation and needs. They were very professional and experienced in their craft. They informed us about everything they were doing, showed us pictures and cleaned up the entire area. AND it was quite a bit cheaper than our usual provider.
We are extremely pleased with the entire experience. I would award them more stars if possible but I will strongly recommend you call Cool Willy’s instead. See for yourself! Heating and Cooling costs are a huge part of homeowners budget and you want to spend those dollars wisely. Thumbs up for Noah, Carlos and Cool Willy’s.
Anh T.
5 months ago
We had an excellent experience with Noah from Cool Willy! He was extremely friendly, informative, and efficient from start to finish. He took the time to explain everything he was going to do, which we really appreciated. He even wore shoe covers to keep our home clean—such a thoughtful touch. On top of that, he gave my daughter a Cool Willy mascot stuffed animal, which totally made her day. Outstanding service all around. Highly recommend Noah and Cool Willy!
Annyce M.
6 months ago
Choosing Cool Willy's Air and Plumbing was the best decision we made. From the initial contact on the phone, the staff was very helpful, knowledgeable and so willing to answer any of our questions.

The technician came out for an annual flush of our hot water on demand system. He he was very quick and efficient and answered questions and concerns we had.

Jared came out for our heating maintenance check. He was very friendly and knowledgeable and explained the condition of our units. He recommended after testing our mini splits that they should be replaced. Since they hadn't been functioning effectively and were old we went with his recommendation.

Cara organized and scheduled the installation. She was so helpful as well. Matthew contacted us prior to the installation to go over all the details. The day of installation Kevin and Bobby handled the installation with ease. They kept us informed throughout the whole process and made sure all our questions were answered.

Finally, Caleb came out to do a quality inspection check on the mini splits that were installed. He troubleshooted any issues we had and made sure we were able to use the system correctly and efficiently.

Cool Willy's Air and Plumbing exceeded our expectations and we look forward to working with them in the future. A+ recommendation
P. F.
6 months ago
Water bill alerted us to a ~3,000-gallon per day leak in the main from the meter to our house— not visible on the surface. We called Cool Willy’s because they’ve been helpful in the past with our HVAC. John came out to examine the problem and provide an estimate. I asked him if they could follow the line back from the meter & repair the leak. We agreed that if the pipe were steel then we’d abandon and replace, but if PVC then we’d excavate and repair. He tried to scratch the dirt off of the pipe through the hole in the meter box and told me it was galvanized. The quote was $9,350. Then he suggested I join their “club” to get a discount. I agreed to do that, so he made a new quote for $8,415. The work: trench 90 feet from the meter to the house, install the line with a shut-off valve at each end and a new regulator; backfill the trench (no repaving).
I told him that I found the price to be very high. But eager to stop pouring money into the desert, I decided not to get other estimates.
I later called to ask for an invoice showing material and labor breakouts, but John informed me “We don’t usually do itemized costs.” After I pressed him for some kind of rationale he said they charge $100/ft as a flat rate. Comparing with national and state averages I found trenching to a one-foot depth typically runs only $12-$50.
The excellent work crew, Jesus and Luis, came and started excavating the line next to the meter, discovering that the line was in fact PVC. They also discovered the pipe dove straight down four feet about two feet from the meter; likely a result of grading when the house built. They called the office and told me the next steps were up to me. Reluctant to ask the them to dig a four-foot deep trench for 90 feet, I told them to abandon the existing line and dig a new trench per code. They worked diligently and expertly for 2-1/2 days to finish the work. They were friendly and competent, and helped me understand the process as they went.
I’m happy with the outcome and quality of their work and I think Jesus and Luis are to be commended for quality work and customer service.
I do think that John should take more time on his estimates, to make sure he fully understands the job before prescribing a solution. I’ll think twice again about hiring Cool Willy’s for plumbing work in the future. Their failure (and essentially refusal) to provide a detailed breakout of estimated costs on a written estimate prior to start of work smacks of sloppy business practices.
Cool Willy’s was previously called Williamson’s. I have paperwork from them going back more than five years that includes detailed written estimates. I don’t know why they changed their name, nor what else changed in that process, but what I see today is very diligent and responsible work crews, but very shakey estimating and billing practices by the owners. I hope they improve.
Outdoor HVAC unit being repaired and tested

Signs It’s Time to Replace Your HVAC System

If your current system is struggling to keep your home comfortable, replacing it with a modern HVAC system may save you money and improve overall performance.

Your HVAC System Is 10–15+ Years Old

Older systems often lose efficiency over time and become more prone to breakdowns and costly repairs.

Frequent Repairs

If your heating or cooling system constantly needs service, replacement may be the more cost-effective long-term solution.

High Energy Bills

An outdated HVAC system typically uses more energy to maintain indoor comfort, increasing monthly utility costs.

Uneven Temperatures

Hot and cold spots throughout your home can indicate your HVAC system is no longer operating efficiently or properly sized for your space.

Our HVAC Installation Process

At Cool Willy’s Air & Plumbing, we make HVAC replacement and installation simple with a process focused on comfort, efficiency, and transparency.

In-Home Consultation

We evaluate your home’s size, layout, comfort needs, and energy goals to recommend the ideal HVAC system.

Upfront Pricing

You’ll receive a detailed estimate with transparent pricing and no hidden surprises before installation begins.

Professional Installation

Our licensed, bonded, and insured technicians install your system carefully and correctly for maximum efficiency and reliability.

System Walkthrough & Support

After installation, we’ll show you how to operate your new HVAC system and answer any questions about maintenance or energy-saving features.

Schedule HVAC Installation in Tucson Today

Upgrade your comfort with professional HVAC installation services from Cool Willy’s Air & Plumbing. Our team is ready to help you choose the right heating and cooling system for your home.

Schedule your HVAC consultation and receive your Complimentary Indoor Air Quality Appointment.

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