Red Oak Looks to Us for Geothermal Heating & Cooling! We're Camblin Mechanical Inc.. And we're recognized throughout Red Oak, Iowa, for our geothermal heating and cooling knowledge. People look to us for ... superior geothermal system installation and service qualified, highly trained personnel who understand every detail of geothermal heating and cooling - and know how to help you understand geothermal systems from one of the industry's most established names - WaterFurnace advice on how to maximize the potential from their geothermal heating and cooling installation Of course, a major reason people turn to us in the first place is for the savings they can appreciate on their energy bills with a geothermal system. Want a preview? Give our Geothermal Savings Calculator a go. Then push forward with the next step and contact Camblin Mechanical Inc.. We'll walk you through more of what makes geothermal systems the premium choice for year-round heating and cooling comfort in Red Oak.