Gas Furnace Replacement SERVICES


Knowing when to replace a gas furnace rather than continuing repairs can be tricky. Here are telltale signs it may be time to upgrade your home’s heating system:

  • Frequent breakdowns and repair needs, especially in older units over 15 years old
  • Spikes in energy bills due to inefficient operation
  • Lack of sufficient warmth through the home, hot and cold spots
  • Bothersome noises like banging, screeching, or rumbling
  • Dangerous issues like gas leaks, carbon monoxide warnings, or burning smells
  • Dated technology lacking features like smart controls and energy efficiency

Don’t wait until your furnace fails completely at the worst possible time. Be proactive and upgrade before problems become severe. Why gamble with your home’s comfort and safety?

Please wait...


Determining whether to repair or replace your aging gas furnace depends on several factors:

  • Age of the system – Older than 15 years? Replacement may be better.
  • Repair frequency – Do fixes seem like a regular occurrence? Time for an upgrade.
  • Parts availability – Hard-to-find obsolete parts? A new furnace avoids this.
  • Efficiency – Has technology passed your old unit by? Modern furnaces save significantly on energy costs.
  • Safety issues – Any concerns like gas leaks or carbon monoxide? Don’t take risks with DIY repairs.
  • Comfort level – Are hot/cold spots an issue? Newer models provide more even, consistent heat.

Weigh the benefits of replacement versus ongoing repairs. At a certain point, a new furnace becomes the more cost-effective investment. Our experts fully assess your situation and recommend the best solution.


Replacing a gas furnace requires expertise. Our technicians methodically guide you through the entire process:

  • Usage analysis – We calculate your home’s specific heating needs based on size, layout, insulation, windows, and other factors impacting energy use.
  • Equipment selection – Using your home’s load data, we specify an appropriately sized, high-efficiency furnace model that’s right for you.
  • Specialist installation – We handle safe removal of old furnace, modifications to ductwork, gas lines, electrical and more for a seamless transition.
  • System testing – Once installed, we thoroughly test your new furnace for proper combustion, venting, airflow, controls, and safety.
  • Adjustments and optimization – We fine-tune the furnace with any needed tweaks and customizations to maximize performance and efficiency.
  • Documentation and education – We provide full details on operating and maintaining your new system and are available for any future questions.

Trust our technicians to handle your furnace replacement project from start to finish.


With proper maintenance, gas furnaces typically last 15-20 years, perhaps longer. But there are several variables:

  • Brand quality – Budget brands may need replacement sooner than premium models.
  • Frequency of use – Furnaces in extreme climates tend to wear out faster.
  • Maintenance rigor – Lack of annual tune-ups shortens lifespan.
  • Unforeseen damage – Disasters, fires, floods etc. can impact longevity.

Ideally, homeowners budget for replacement around the 15 year mark to avoid being caught off guard. We advise replacing older furnaces before they become unreliable. Avoid scrambling during winter by being proactive.


If signs point to needing a new gas furnace in your Antioch, Pittsburg, Brentwood, Pleasant Hill, Walnut Creek, or Oakley home, the experts at CCHVAC are here to help. Contact us to schedule replacement or repair services. We make the entire process easy, handling usage analysis, equipment selection, specialist installation, testing, fine-tuning, and all the details in between. Invest now in a new, warrantied, safety-certified gas furnace to enjoy greater peace of mind, energy savings, and home comfort for years to come. Why wait until your old unit fails? Take a proactive approach and upgrade on your own terms today!


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.