INSTALLATIONFor great indoor air quality, ventilation systems are a must. Whether you’re in a house, apartment building, or any other kind of living space, ventilation systems guarantee you have access to clean air at all times. A good ventilation system pushes out the stagnant air of your home, including any odors, impurities, or particulate matter, and supplies crisp, clean, outdoor air to ensure you have access to fresh air even when the windows are closed! If you need a brand-new ventilation system and installation, look no further than Cozy Conditions. Our mechanics are trained and experienced with installing ventilation systems of all kinds, including natural ventilation systems, mechanized fans, exhaust systems, supply systems, and much, much more!

REPLACEMENT – Unfortunately, you won’t always be able to repair a ventilation system. Old, outdated systems, if repaired, may only provide temporary relief before something inevitably breaks down again. That’s assuming the parts can be sourced, since some essential pieces are subject to supply chain issues, backorders, or manufacturers discontinuing obsolete components of older systems. If that’s the case, call Cozy Conditions and ask about a replacement system. Our staff of well-qualified specialists will survey the space top to bottom, inspect the existing system, and make professional recommendations on what would work as a suitable replacement.

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REPAIR – A great ventilation system makes sure you always have access to fresh air in all the important areas of your home. If the system or any part of it breaks or malfunctions, you may need a qualified technician to take a look and provide high quality service to restore it back to functionality. How will you know if your ventilation system is on the fritz? We recommend paying close attention to noise, first and foremost, as you don’t want things to be too quiet or too loud. If you are accustomed to hearing a light hum of the system working in the background and now all is quiet, it’s time for a service call. Likewise, if you hear loud grating or squealing, chances are the system needs service all the same. You may also notice lingering odors, smoke buildup during cooking, or steam buildup after a hot shower. If your ventilation systems aren’t pulling out air to push in fresh air, you need help.

If you have any questions or would like to schedule an appointment for ventilation installation, repair, or replacements, give us a call, or fill out the form on our website. Cozy Conditions serves the greater East Bay Area including Antioch, Walnut Creek, Pleasant Hill, Concord, and Pittsburg. Cozy Conditions is qualified and experienced in repairing ventilation systems of all kinds.


I am a real estate agent and Will put in a new furnace for one of my clients. He did a great job and they were very happy with his work.

Mike D.

Will is experienced, reliable, and a great communicator. I hire and refer him whenever I get a chance!

Bethany O.

We had two other guys come out and couldn’t figure out the problem.Will figured it out right away. Will made us feel very comfortable. He always communicated every step of the way and we are very happy with his work. I would recommend Will to everyone I know!

Amy M.

My experience with Cozy Conditions was amazing. The quality of the product was second to none. The work was done very efficiently and without issue. I would recommend them to anyone.

Benjamin B.

Will is as good they get! He knows his stuff and is as fair and honest as they come. He’s a true family man who works hard for not only his family but also yours!!!


Will was very professional – he explained all the details and worked efficiently. The price was awesome too.

Francisco E.

Will replaced a furnace for me located in my basement. I was pleasantly surprised on how neat and clean the installation went. No issues and the furnace works great. I will have Cozy Conditions back this spring to do a service check on my AC.

Denise M.

We would gladly hire Cozy Conditions again for a project and would recommend them wholeheartedly. The work was done with care, they kept their commitments, and the work area was tidy and orderly.

Michelle L.

It was time to replace our existing unit. We got several bids, and so happy we went with Will. He was very informative, honest, and we really appreciated that. The timeline/install was exactly what he had said. I highly recommend Cozy Conditions! Thank you Will!!

Kimi L.

After screening several contractors and well-known HVAC businesses, it was clear to me that Cozy Conditions was the best overall value. I received daily updates on the progress of the job and Will always checked in to make sure I didn’t have any questions.

Clifford H.

Will not only did an excellent job of both my installations, but also charged me a rate which was extremely reasonable. He installed a mini-split system on the roof of my office building and an exhaust fan in the men’s restroom. He is now my regular HVAC tech.

Ramesh M.

Why Choose Us

We have many years of experience, like other HVAC companies, but our level of customer service and care sets us apart.


We can boost decades of real world experience to go along with top-level certified installers and technicians.


It’s all about our customers. They help us to figure out how to go the extra mile to make sure every customer is happy.


We are licensed, insured, certificated and experienced expert technicians.

We Install, Fix, and Maintain A/C & Heating Systems

Call today or book an appointment now to schedule a technician’s visit.

Our Services

Emergency Services Available

Installation, Repair & Servicing

We make sure your home is cool and comfortable through the hotter summer months and heat waves.

Installation, Repair & Servicing

From heaters to furnaces, our experts make sure your home is always at your coziest condition.

Installation, Repair & Servicing

We also are here to help with all your home ventilation needs, from ducting to air purification.