Air and Heat Company servicing the North Houston Area. At L.C Air and Heat, we want you to enjoy life and all the comforts of your home or business. So no matter the season, we will provide reliable, friendly and professional service for your air conditioning and heating needs from repairs, tune-ups to installations. And, you can expect an honest job and a competitive price. We service the North Houston area that includes Cypress, Spring, Tomball, Montgomery, Magnolia, The Woodlands, Conroe, Humble and Kingwood.