Double Hung Window

The most popular window in the US. A double hung window has two operable sashes that move up and down, if the top sash is fixed then it's called a single hung. The sashes slide in tracks built into the frame and are held in position by either counterweights, springs, or friction. ... A double hung window that has a top sash narrower than the bottom sash is sometimes called a cottage window. 

Casement Window

Casement window, earliest form of movable window with hinges or arm hinges at the upright side of the vertically hung sash, so that it opens outward or inward along its entire length in the manner of a door. One frame, separately movable, of such a window is called a casement sash.

Awning Window

Awning windows are hinged at the top and swing out from the bottom, gliding open and shut with the turn of a handle. They are a great option for places that need extra ventilation and light

Fixed or Picture Window

A picture, or fixed frame, windows are non-operable windows that pair beautifully with your standard operable windows. Available in wood, fiberglass and vinyl, enjoy the energy-efficient benefits of fixed windows. 

Sliding Window

Sliding windows are horizontal, with sashes that slide back and forth rather than up and down like more traditional windows. They are essentially double hung windows turned on their side.

Bent DH sash 

Your only source for this historic & unique windows in San Francisco, Bent or curved DH windows are not available from many manufacturers due to the high level of skill required to manufacture. Available in single glaze or laminate glass only.