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The Gilmore Guarantees

The Gilmore Guarantees

At Gilmore, our team knows that problems with an HVAC or Plumbing system can be overwhelming to homeowners. That’s why it is our goal to let our customers know that they are always in good hands with Gilmore. We demonstrate this by implementing our Gilmore Guarantees at every appointment.



John Gilmore started Gilmore Heating, Air, and Plumbing to provide customers with the best possible service in the Sacramento Valley. At Gilmore, the best heating company in Sacramento, employees know that problems with an HVAC or plumbing system can be overwhelming. Thus, our goal is to let customers know that they are the most important aspect of all the work we do. That’s why we offer the Gilmore Guarantees to our customers so that they know they’re always in good hands.

The Gilmore Guarantees El Dorado Hills


Before he opened Gilmore, John graduated from Los Angeles Technical College with a degree in air conditioning technology. Then, he immediately went to work on the construction of heating and air conditioning systems for a major HVAC corporation in Southern California. Next, he climbed to the rank of Vice President of Operations in the next few years.

John moved to help develop and run a new SoCal HVAC company, Licensed Air & Heating, in 1972. At the time, he helped it develop into one of the largest service and replacement companies in the world. In 1973, he opened his own heating and air conditioning company in Glendale, CA.

In 1979, John also opened Gilmore Heating, Air and Plumbing, Sacramento HVAC company. From the ground up, he built a reliable, well-known, well-loved company. John’s son Darrin now follows his father’s footsteps.

Gilmore implemented the Gilmore Guarantees to show customers they’re in good hands. When you contact us, one of our heating specialists will come to your house, analyze your machine, and then sit down and consider your options. If you want to upgrade your system, you can believe that thanks to our Gilmore Guarantees, we can deliver on our promises:


We guarantee the accuracy of the workmanship to be competent and in compliance with the requirements set by the manufacturer. If additional installation service due to the initial installation of your heating and air is required over the life of your system, we will return and offer this service at no cost to you for as long as you own the system.


Our installation technicians are the finest in expertise, attitude, and craftsmanship. They’re going to take care of your home and finish the job with pace and accuracy. They wear floor savers, COVID-19 friendly masks, tidy up when they’re done, and take personal responsibility for your satisfaction. They’re friendly, courteous, and they’re not going to smoke or curse in your house.


Simply submit a written quotation from a licensed contractor for 1st quality goods dated within 20 days of ordering. As follows, we will provide you with a free, detailed review of their pricing and services. Our price guarantee is our pledge that you will not be able to find a similar facility from start to finish for less, or we will beat it by $250!


Both properties such as lawns, shrubs, carpets, floors, walls, furniture, and door frames are covered. Thus, damaged assets can be demolished or restored. Protective floor savers and hall runners can be used in both function and traffic fields.


Need a home service today? Contact our experienced HVAC Technicians & Plumbing Professionals. We are all about your home comfort and will use our four guarantees to ensure you the best service in the Sacramento Valley.

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