Thermal Curtain for a Front Door: Stop Cold and Draughts

Why the cold comes in through the front door

The front door is a weak point in insulation. Cold air gets in under the door leaf, around the frame and over the threshold, and a glazed door lets heat escape through the glass. You feel the result quickly: a draft in the hallway, a corridor cooler than the rest of the home.

Replacing the door or redoing the seals solves part of the problem, but it is a big and costly job. A thermal curtain deals with heat loss on the inside, simply and without any work.

How a thermal curtain blocks the cold

A thermal curtain works through three mechanisms. First, it creates a layer of still air between the door and the room, which slows the cold. Then its weight and density limit conduction, and a lining can reflect heat back into the room. The heavier the fabric and the more it covers, the clearer the effect. The full physics is explained in our article on how an anti-cold thermal curtain works.

Which curtain to choose for a front door

Three criteria matter.

• A dense, heavy fabric : it is the weight that insulates. A sheer will do nothing, a thick curtain will.
• Dimensions that cover generously : the curtain should extend beyond the door on each side and reach the floor, or just brush it, to close off the bottom. A curtain that is too tight lets the cold get round it.
• Made-to-measure : a front door is rarely a standard size (transom, side glazing, ceiling height). Made to measure, the curtain fits the opening with no gaps.

In terms of style, the choice of fabrics, colours and finishes lets you match the curtain to your entrance. Kurtens makes these thermal curtains to measure, in several fabrics and colours.

How to install it without drilling into the door

The curtain is not fixed to the door, but above it, on the wall or the frame. Fit the rod 10 to 15 cm above the door frame to cover the transom, with a solid bracket: a thermal curtain is heavy, and a tension rod will not hold the weight. For a door you open often, a portière rod, fixed at the top and bottom of the door leaf, follows the movement of the door. Otherwise, a standard wall-mounted rod with a tieback to clear the way.

What about noise? Thermal and acoustic go together

A door onto a busy street lets in the cold but also the noise. A heavy curtain deals with both: the same weight that blocks the cold dampens sound. If noise is your priority, see our collection soundproof curtains for front doors and our article noise-reducing curtain for a front door.

Thermal curtain or other solutions

The curtain is not the only option against cold at the door, but it is the simplest and the most reversible.

The curtain also combines very well with a door draft stopper and seals. For windows, the same principle applies: see insulating your windows against the cold without renovation work.

Frequently asked questions

For a draft-free front door, discover the made-to-measure thermal curtains from Kurtens, made to your dimensions in several fabrics and colours.