Home » Let’s not let a draft into our house! Do-it-yourself insulation of the front door

Let’s not let a draft into our house! Do-it-yourself insulation of the front door

by Alex Hales

As you know, in the insulation of housing there is nothing superfluous. Floor, ceiling, walls, windows – everything must be carefully insulated if you want your apartment to keep comfort. And the insulation of the door in this situation is no less important concern.

Drafts coming from the front door can bring a lot of trouble. Any design: wooden, metal, in itself does not save from the cold. Therefore, additional insulation of the door is required.

How to do all the work correctly so that the door faithfully serves to preserve warmth and comfort in your home for many years, we will tell in this article.

Ways to insulate front doors

If the manufacturer has provided for thermal insulation of the door, then you will not have to make much effort, because the insulation layer is already inside the structure. But most often we buy a regular, standard door leaf, because it is much cheaper.

How tightly you need to insulate your door depends on what material it is made of. As a rule, doors are:

  • metal;
  • wooden;

To isolate plastic blocks, tools and special skills are needed, in this case it would be more correct to turn to the services of professionals. But a wooden or metal door is easy to finish and insulate with your own hands.

The best option for insulation may be the installation of a second door. Thus, a small vestibule with an air cushion is created between the entrance and the inner doors, which will slow down the escape of heat from the room, and at the same time will not let the cold outside.

In addition, any gaps around the door frame should be sealed – it is through them that the cold penetrates into the room. To do this, it is enough to use mounting foam.

You will also need to use a sealer. The greater the load it can withstand, the better, because the doors have to be opened and closed frequently. This material is presented on the construction market in a wide range. Sellers will help you choose the most suitable for your door.

If your apartment is located on the ground floor, it is better to immediately take care that the entrance door of the entrance closes automatically. To do this, you can install a closer. An agreement with the neighbors about the intercom will solve this issue thoroughly.

Insulation of the front door with foam rubber

If you want the insulation of the front door to not take you a lot of time and money, use the most familiar, common material – foam rubber . It is not suitable for sealing on the sides of the door frame, but it can be sewn onto a wooden door on both sides.

To work, you will need the following:

  • Foam rubber;
  • Upholstery fabric;
  • Glue;
  • Threshold board;
  • Rails made of wood and plastic.

Please note: the upholstery for the door must be water-repellent. The best solution would be dermantin, artificial leather or sackcloth.

    1. First of all, cut off the outdated coating from the door and get rid of the remnants of insulating materials. Wash the surface thoroughly.
    2. After the door dries, stick on its inside and outside with layers of foam rubber, cut strictly to size. If necessary, pieces of foam rubber can be glued together in 2-3 layers (for example, if the material is thin, or you think that additional insulation will not damage).
    3. Now stretch the upholstery over the foam rubber, fixing it to the door with nails or a construction stapler. You can decorate the surface with a pattern of wallpaper nails. Do not overdo it: the nails are pressed and pressed into the insulation, because of this, its heat-saving properties are lost.
    4. It’s time for the door frame. Fill the rails around the perimeter of the door, which were previously covered with foam rubber and fabric. At the same time, control the position of the closed door: it should fit snugly, without gaps.
    5. The last stage of warming is the installation of the threshold. The board for the threshold should completely close the gap under the door, but not prevent the door leaf from opening and closing.

Instead of foam rubber, you can use materials such as polystyrene foam (2 to 5 cm thick) or polyethylene foam. In terms of their heat capacity, they are superior to any traditionally used materials.

Such a simple and economical way will help you quickly insulate the door, additionally protecting you from extraneous noise.

Read More 10 Tips On Finding The Best Garage Door Repair Service

Insulation of metal doors

Metal doors can create so-called cold bridges. Through them, frost sneaks into the room, even if the door leaf is completely sealed and closes tightly. Therefore, the purpose of insulating a metal door is the following:

  • increasing the sealing of the door;
  • insulation of all metal parts of the product, except for the door handle;
  • the placement of insulating material inside the door leaf.

The design of almost all metal doors is hollow. Thanks to this, it is very easy to place mineral wool or foam board inside as an insulating material.

For your information: if you have a Chinese door, then you should know that its tin box is factory welded. In order to disassemble such a structure, contact the services of a specialist who, after finishing the insulation work, will weld the structure.

So, the process of warming metal doors will look like this:

  1. Carefully remove the locks and door handles;
  2. Disassemble the box (in case the fastening is carried out by welding seams, they must be removed with an angle grinder);
  3. Lay the insulation inside the empty box;
  4. Assemble the door structure to its original position.

If you chose polystyrene to insulate the door, then there will be gaps between the sheet and the fixing and fixing metal profiles. In order to ensure complete thermal insulation take care by composite doors company, fill these spaces with mounting foam.



If you have a non-separable door, it can be insulated with an internal additional lining. To do this, remove the door from the hinges, remove the handles, locks and other adjusting fittings. Screw a beam with a diameter of 10 X 10 mm along the perimeter of the door leaf from the inside, stretch the upholstery for the entrance doors and fix it on the beam with special nails.

What to do if additional insulation is not enough?

A well-insulated exterior door should not allow a single gram of cold air to enter the room, nor should it let heat out. But you may encounter the fact that you seem to have done all the work correctly, but the expected result was not achieved. What could be the reason?

First of all, pay attention to whether the door leaf was correctly positioned during installation, and whether there were any gaps in the mounting foam. Both causes equally lead to a violation of the sealing of the entire structure.

To determine the quality of foaming and find the gap, use the traditional folk method: light a candle and slowly move along the joints of the door frame. Even the smallest draft will begin to shake the flame, thereby pointing you to the remaining gap.

In order to properly adjust the door leaf, you will need sets of hexagons and socket wrenches.

Adjustment is carried out due to canopies, which are usually 4-5 pieces on the door. Each canopy is fixed with a fixing nut and four bolts. Adjustment work is carried out as follows:

  • lower the adjusting nut on all hinges;
  • lower the bolts with a hexagon and level the canvas;
  • tighten the bolts and fix their position with a nut.

Unlike work on the insulation and installation of doors, adjustment can be done in all weather conditions, but severe cold can cause additional adjustment of awnings in summer.

We insulate the nxt-gen doors leaf around the perimeter

No matter how well the door leaf is insulated, no matter what materials you use for this, the work will not be enough if the door does not fit snugly against the frame.

Gaps between the jamb and the door occur in the event of installation errors, or after some time due to the shrinkage of the building or the distortion of the structure. The sealant will help to solve this problem quickly and easily. It is enough to fit it tightly to the door frame, and the structure will become completely airtight, all the cracks will be filled, and, accordingly, the heat loss of your house or apartment will be significantly reduced.

  1. The modern building materials market offers a wide range of sealants. The best option is rubber tubular seals with a self-adhesive base.
  2. In order to select the desired width of the seal, be guided by the width of the canvas. Its thickness during compression should be equal to the width of the gap between the frame and the door.
  3. The thickness of the seal also requires special attention. Too thin material is not effective enough, and too thick material will cause inconvenience when closing doors.

As you can see, self-insulation of almost any door can be done even by a beginner. Share with us and other readers your practical experience in such work, ask any questions, and we will be happy to discuss all comments and suggestions. Warmth and comfort to your home!

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