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About Cold Craft

We pride ourselves in being proactive in the installation and service aspects of furnace and air conditioning.  These include safety, technical excellence, doing it right the first time and customer experience.

Residential Heating and Air Conditioning

Cold Craft, Inc. is a trusted residential cooling and heating contractor since 1991 in the South Bay. We are a BPI Certified contractor so we understand building performance and a Diamond Certified company so you know you will be treated right.


Cold Craft specializes in commercial heating, ventilation, air conditioning and refrigeration installation, diagnostic, maintenance and repair. We take pride in using highly experienced technicians and detailed inspection checklists.


Geothermal heating is a fairly involved process and an investment.  For more information about the process and a free estimate for those that qualify, please give us a call to learn more at (408) 374-7292. We are here to assist you.


We provide the following services:

  • Residential & Commercial Heating
  • Air Conditioning
  • Ventilation
  • Refrigeration Installation
  • Design Builds
  • Safety Inspections
  • Geothermal
  • Install, repair and maintenance for Wine Cellar refrigeration 
  • Diagnostic
  • Maintenance & Repair

Phone: (888)447-0071


cold-craft-geothermal-article-into-picture-copy-2Are you paying too much on your heating, cooling and hot water electric bills? Geothermal is a great way to cut down on those energy costs. In fact, you can save up to 80% each year on heating, cooling and hot water bills just by switching from a traditional HVAC system to a geothermal heating and cooling system. ClimateMaster geothermal systems are not only a good investment; they are a cleaner choice for the environment.

Cold Craft 1Here’s how it works: the ground remains at a constant, comfortable temperature just below its surface all year long. Geothermal heating and cooling systems take advantage of the stable temperature underground using a piping system and with the principles of refrigeration the geothermal system can move heat quietly, the result is heating, cooling, and hot water production at remarkably high efficiency levels.

Not all geothermal systems use the ground to heat and cool. Instead they use a body of water, and the most popular method in California is to use that backyard swimming pool as a heat sink. This means that people have the advantage of heating their swimming pool while cooling their homes, by moving the heat from the home into the pool using a water-sourced heat pump.

When heating your home, a high-efficiency gas furnace will give you less than .96 units of heat for each unit of gas burned. In contrast, with the advantages of a geothermal system you get up to 5 units of heat for each unit of electricity used. The reason is a furnace makes heat by burning fossil fuel, a big disadvantage. A geothermal system doesn’t make its own heat; it simply collects heat from the earth and moves it to your home. The results can be a big difference in your monthly home heating bills.

When you need cooling the most, the outside air is hottest. A traditional air source heat pump must work hard to force the heat from your home into the already heat saturated air. In contrast, a geothermal heat pump consumes less energy as it easily rejects heat into the cool earth, making geothermal cooling significantly more energy efficient.


A geothermal system can be installed safely inside your home. Unlike an air-source heat pump, there is no outdoor equipment exposed to the elements or the risk of vandalism with the ground loop system. Additionally, the 30% Federal tax credit for geothermal systems has been reinstated retroactive to 2017. It is recommended to check with your tax professional to make sure that this is a good fit for your situation.

When choosing geothermal it is important to choose a firm that either has access to a professional engineer or has one on staff. This is especially true in California.

If you are ready to start heating or cooling your home more efficiently, then Cold Craft, Inc. can help. Cold Craft installs ClimateMaster’s geothermal heat pumps that are ENERGY STAR® qualified and is designated as a GeoElite Dealer. With many years of experience and extensive knowledge, they are highly qualified to work on both residential and commercial projects. Their schedule has recently opened to accommodate large-scale projects such as 10,000 square feet homes or grocery store refrigeration replacement. Their engineering department can also assist by providing stamped plans to meet Title 24 requirements. For more information, you can call 888-447-0071 or visit

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