Get matched with top boiler installation pros in Cool, CA

"They installed a furnace and had to keep coming back to adjust it and even replaced a part. The warranty ran out a year later. But now, a year and a half later, they replaced it free of charge with a different brand."

"They had a good program for heating and A/C like for $100 they come out and check in the fall to make sure the heating is running right and again in the spring to make sure the A/C is working right. They did their job. It was cheaper than anyone else and I got 2 services. The only thing they could do better is give me free heating and air conditioning."

For over 35 years, for homeowners in Novato and northern California, the name Peter Levi has come to means just that — Trust.\nReliable, experienced & certified premiere HVAC, all of Peter Levi technicians are some of the friendliest, most knowlegeable people you’ll ever meet! Drug screened and background checked, you can always count on a top-notch experience.\n\nWe charge by the job, so you know the cost before we start. As one of the most trusted Novato and Vacaville commercial Plumbing and HVAC companies, we have worked with builders and homeowners alike for over 20 years, providing the highest quality, professional services with 100% customer satisfaction each and every time.\n\nPlus, you can always count on honest, upfront pricing with no hidden charges or fees and the confidence of knowing that a true professional is on the job!\n\nPLUMBING\nHEATING\nAIR CONDITIONING\nSEWER and DRAIN\nSERVICE and REPAIR\nCOMMERCIAL\nAND SO MUCH MORE!

"Very good installation, one that will still look good in 25 year. Team performed above expectations."

"When it became clear that my existing HVAC system needed to be replaced, I initallycontacted thecompany that was the original maintenance contractor.  They made a proposal for system replacement, but, would not give me a paper contract explaining the complete work to be provided.  Indeed, said contractor proceeded to try to sell me additional items I did not want or need.
I subsequently called Diamond for an estimate.  Bob came to the house and thoroughly explained various options and provided
written contracts for the alternate proposals.  The straight talk approach was really appreciated (especially after the snake oil salesman from the prior vendor).  After a day's review, I authorized Diamond to proceed with the installation.
The Diamond staff showed up on time and finished the installation by the end of the second day.  They were extremely professional and patiently explained what was happening at each stage of the project.  Behing the professional staff, Bob an Elaine Weatherford remained in contact to make sure that I was happy with the work.
My only concern after the project was completed was the interaction between the new system and the smart vent system.  Bob and his staff made sure the my concerns were resolved.
I unconditionally recommend Diamond HVAC sysems to anyone who wants to depend on dealing with honest, no nonsense, business professionals.


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"The team of four was very professional and performed an excellent job in a record period of time. Just one day to take the old furnace away, replace all the old boots and duct work and install the new furnace. They paid a lot of attention not to damage or dirty the floor/carpet. I am very happy with their performance. They may not be the cheapest on the block but it was all worthed and you only have to do that once in your lifetime."

"Our experience with Ray O. Cook went very well!! Our HVAC system was the original when the house was built over 40 years ago. My husband's excellent Do it Yourself skills allowed him to maintain it and keep it running all these years. We received estimates from 5 different companies. Although the other salesman/estimators were good, Paul was the best. He explained all our options more thoroughly than the others and his recommendations for installing the HVAC system for our needs and house size made the most sense. The price was very reasonable and fair. The installers, Willy and Rick T were awesome. They both worked professionally and took the time to answer any questions either one of us had with the install process. They also did an excellent cleanup job. Erick, the install manager was very knowledgeable and helpful. The insulation was put in by Sierra Wes, a company Ray O Cook contracts with and they did a great job also. Lastly, the Ray O. Cook logo of a flaming O is super cool!!!"

"I purchased the deal and because I wanted to convert from traditional wood fireplace. They could do the gas installation in the fireplace but they could not assist me with the damper."

"I am very pleased with the service I received from Bellas Plumbing. Bill installed a new faucet in my kitchen. The service was quick and the cost was very reasonable. I will use Bellas Plumbing for all of my plumbing needs in the future and will recommend Bellas Plumbing to family and friends. Thank you for giving Bellas Plumbing my name."

"Furnace ran without trouble while Eric was here. He inspected it and ran tests, found nothing wrong. Charged us only for the visit, and didn't try to sell us any kind of additional services. But he provided a quote for a new unit in case the noise returned and we wanted to replace the furnace, which is 20 years old. The noise returned, and we will have Eric install the replacement in a couple of days. We are happy to be repeat customers because he was professional, prompt, and helpful during the first visit."