How to Install a Glass Fireplace Door

Having a fireplace in your home creates a warm and inviting atmosphere.  Fireplaces can make a big difference in home utility bills as well as décor and style.  A glass fireplace door can help contain the fire and even squelch it when needed while projecting a sense of style and design.

1. Remove any debris from the front and inner sides of the fireplace.  Use caution when cleaning if bricks are old and brittle.  You want to make sure that nothing is between the bricks and the new glass fireplace door.


2. Place the door on the floor in front of the brick fireplace and lean it slightly outward so you can reach the lintel clamps on the top and the floor brackets on the bottom.  Do not lay the door down on the floor.  This can damage the glass doors.


3. Remove the screws on the top and the bottom of the door.  This is where you will place the clamps (on the top) and the brackets (on the bottom).


4. Set the door inside the brick opening. 


5. Use a black marker to mark the space where you will need to place the screws on the top and bottom.  You may want to put a portable light on the inside of the fireplace so you can see what you are doing.


6. Drill a two-inch hole that is the same size as the screws (normally 5/16 inch) where you made the black mark. Be sure to remove the doors before drilling. You will need to use a masonry bit to drill into the brick.  Always drill on the brick rather than the mortar, which crumbles easily and will not hold a screw.


7. Hammer a lead anchor into each hole.


8. Fill the inside edges of the door with fiberglass insulation.  Be sure to wear gloves when working with this material.


9. Fit the door into the brick fireplace.  Check to see that no insulation is sticking out.  Put the bottom screws in the lead anchor and screw them down.


10. Add the lintel clamps to the top part of the door.  Turn the screw to tighten the clamp.  This should hold the door in place and you should be ready to start a fire.