A house under construction with a wooden frame and roofing in progress, seen from outside, alongside an finished interior room with white walls, large windows, and light-colored flooring.
A family of four lying on top of a large computer keyboard with the family members emerging from the keyboard.
Modern kitchen with dark cabinets, marble countertops, white tiled walls, stainless steel range hood, large window showing trees, and a mix of wood and marble flooring.
Modern bathroom with a freestanding bathtub near large window, wooden vanity with mirror, marble floor, and ceiling lights.
HOYA Ondol logo with Korean text below on an orange background.
Outdoor air source heat pump unit with two large fans next to a white brick wall, sitting on a concrete platform on a wooden deck, with potted plants and houses in the background.
Smart home heating system with a heated floor mat, a coil of wire, a thermostat, and a touchscreen control panel.
A person standing barefoot on a black and orange textured outdoor mat with the word 'HELLO' written on it in the front. The scene is indoors, near a window with a snowy landscape outside.

‍ ‍Schluter Ditra Electric Heating

Combined Hydronic Heating & Cooling with Air-To-Water Heat Pumps

‍ ‍ Expansion/ADU/Remodeling

Close-up of an electronic circuit board with connected wires and components.
BBB Accredited Business logo with a blue flame and the words 'ACCREDITED BUSINESS'

Licensed and BBB Accredited

Image of a California contractor's state license card issued by the Department of Consumer Affairs. It shows the license number 1113003 for the entity 'CORP' with the business name 'THREENA INC'. The classification is BC10, and the license expires on November 30, 2027. There are logos of the California State License Board and the Department of Consumer Affairs.
Floor heating system with plumbing pipes running under a striped rug, connected to a control unit mounted on a wall.
Floor heating system installed on a wooden floor with a white heating panel and blue pipes. Two lamps are hanging from the ceiling and the background has white wooden paneling.

Hydronic Floor Heating (Hoya Ondol)