Geothermal Heat Pumps in Las Cruces Sun City Plumbing & Heating offers only the best geothermal products to the Las Cruces, NM area. Our products have the most recognized and respected name in the industry. Every unit is tested before it leaves the manufacturing facility to ensure flawless operation on startup. We combine a commitment to quality installations with a commitment to bring you the finest quality products - that's the best of both worlds.