Installing a door closer: installation diagram and step-by-step instructions

A door closer is not just an accessory, but an important element of safety and comfort. It protects the room from drafts, prevents doors from slamming and extends the life of the fittings. However, improper installation can lead to rapid wear of the mechanism or even damage to the door leaf. This article will help you figure out how install a door closer independently - from choosing a model to final adjustment.

We will look at two main types of installation: invoice (the most common option for offices and entrances) and hidden (for an aesthetic solution in interiors). We will pay special attention to the nuances of working with metal and wooden doors, as well as typical mistakes that beginners make. If you have never encountered such work, don’t worry: with the right approach, installation will take no more than 1–2 hours.

1. How to choose a door closer: criteria and classification

Before purchasing, decide load class - this is a key parameter depending on the width and weight of the door. Manufacturers use standardized labeling EN 1154, where classes are designated by numbers from 1 to 7:

• 🔹 EN1–EN3 — for light internal doors (width up to 85 cm, weight up to 40 kg). Suitable for interior doors in an apartment.
• 🔹 EN4–EN5 — a universal option for offices and entrances (width up to 110 cm, weight up to 80 kg). The most popular choice.
• 🔹 EN6–EN7 — for heavy metal doors (width up to 160 cm, weight up to 160 kg). Used in industrial facilities.

Also pay attention to:

• 🔧 Mechanism type: hydraulic (soft closing) or pneumatic (fast, for street doors).
• 🔄 Speed adjustment: models with 2–3 settings (closing speed, clap, delay) are preferable.
• 🌡️ Operating temperature range: for street doors, choose frost-resistant options (from -40°C).

Among the trusted brands: Dorma, GEZE, Apecs, Boda. Suitable for a budget solution "Era" or "Cross", but their service life is lower - about 100,000 cycles versus 500,000 for premium models.

2. Necessary tools and components

To install the door closer you will need a minimum set of tools. If you already have a drill and screwdrivers, the additional costs will not exceed 200–300 rubles.

Tool/material	Purpose	Alternative
Drill or screwdriver	Drilling holes for fasteners	Turntable (for wooden doors)
Drill bits for metal/wood (⌀3–6 mm)	Depends on door material	Universal drills
Screwdriver set (phillips, flat)	Tightening screws	Screwdriver with bits
Ruler and pencil	Marking of fastening points	Laser level
Mounting template (included)	Precise hole marking	Self-marking according to instructions

If the door closer was purchased without fasteners, prepare:

• 🔩 Self-tapping screws for metal (4×30 mm) - for metal doors.
• 🪵 Wood screws (3.5×25 mm) - for wooden panels.
• 🔧 Anchor bolts (M6×40 mm) - if you attach it to a brick wall.

⚠️ Attention: Do not use self-tapping screws longer than 40 mm for wooden doors - they can go right through and damage the cladding on the reverse side. For hollow metal doors you will need rivets or bolts with nuts.

3. Installation diagrams: where to mount the door closer

There are two main installation methods:

1. Standard (invoice) — the closer body is mounted on the door leaf, and the lever is mounted on the frame.
2. Reverse (per box) — the body is fixed on the door frame, and the lever is fixed on the door leaf. Used when space is limited.

Suitable for most cases standard scheme. The location of the closer depends on door opening directions:

• 🚪 The door opens towards you (inside the room) — the housing is installed on the hinge side, the lever is directed towards the opening.
• 🚪 The door opens “from itself” (outwards) — the body is attached on the side opposite to the hinges, the lever faces towards the hinge group.

The distance from the top edge of the door to the closer body is usually 150–250 mm. The exact values are indicated in the instructions for the specific model. For example, for Dorma TS-73 this is 200 mm, and for Apecs 1100 — 180 mm.

How to check the door opening direction?

Stand on the side where the door opens. If the hinges are on the right, the door is right-handed; if it is on the left, the door is left-handed. This is important for choosing the side for installing the closer.

4. Step-by-step installation instructions

Let's look at the installation using an example overhead door closer on a metal entrance door that opens inwards (the most common case).

Step 1: Marking

Use the template included in the kit. If it's not there:

1. Measure 200 mm from the top edge of the door and make a mark.
2. Step back 20–30 mm from the edge of the canvas (towards the hinges) - this is the center of the housing attachment.
3. Attach the door closer and mark the holes for the screws.
4. On the box, mark the location where the lever is attached (usually on 5–10 mm higher than the body on the canvas).

Step 2: Attaching the Case

For a metal door:

1. Drill holes with a metal drill (⌀3.2 mm).
2. Tap the centers of the holes to prevent the screws from slipping.
3. Secure the body with self-tapping screws or rivets (if the door is hollow).

For a wooden door, wood screws are sufficient (⌀3.5 mm).

Step 3: Installing the Lever

Assemble the linkage according to the instructions (usually it consists of two parts connected by an adjustable screw). Secure it to the box, then connect it to the closer body.

Step 4: Adjustment

After installation, adjust:

• 🔧 Closing speed - screw №1 (clockwise is slower).
• 🔧 Clap speed - screw №2 (adjusts the last 10–15°).
• 🔧 Opening delay (if any) - screw №3.

⚠️ Attention: Do not unscrew the adjusting screws more than 2 turns from the original position - this may lead to oil leakage and failure of the mechanism. Optimal adjustment range: ±1.5 turns.

5. Features of installation on different types of doors

Each door material requires its own approach. Let's consider the key nuances.

Metal doors

The main problem is metal thickness. If the door is reinforced (sheet thickness >2 mm), you will need:

• 🔩 Metal screws with a sharp tip (not drill ones!).
• 🛠️ Pre-drilling holes with a diameter of 0.5 mm less than the diameter of the self-tapping screw.

For armored doors (for example, "Torex" or "The Guardian") it may be necessary to weld the mounting plates.

Wooden doors

The main risk is wood splitting when tightening screws. To avoid this:

• 🪚 Drill holes with a diameter 2.5 mm (even if the screw is thinner).
• 🔨 Use self-tapping screws with countersunk head and recess them by 1–2 mm.

Glass doors

For glass structures use special door closers with clamps (for example, GEZE TS 4000). They are attached without drilling, but require:

• 🔧 Precise adjustment of clamps to the thickness of the glass (usually 8–12 mm).
• 🧴 Silicone gaskets for protection against chips.

For doors with a glass thickness of more than 15 mm, standard clamps will not fit - you will need to individually order fastenings from the manufacturer.

6. Common mistakes and how to avoid them

Even with the apparent simplicity of installation, beginners often make mistakes that lead to damage to the closer or door. Here are the most common:

• ❌ Wrong choice of installation side - if you confuse the “right” and “left” doors, the lever will interfere with opening.
• ❌ Pulling screws - especially relevant for wooden doors (risk of splitting).
• ❌ Ignoring a pattern - “by eye” almost always leads to distortion.
• ❌ Lack of lubrication — new closers do not require lubrication, but after 1–2 years of operation it needs to be updated.
• ❌ Adjustment "to maximum" — unscrewing the screws all the way damages the hydraulics.

To check if the installation is correct:

1. Open the door to 90° and release - it should close smoothly, without jerking.
2. Check the gap between the lever and the door throughout its entire stroke - it should be at least 5 mm.
3. Make sure that the lever does not touch the frame when the door is closed.

7. Maintenance and service life extension

The average resource of a quality closer is 500,000 cycles (about 5–7 years with intensive use). To make it work longer:

• 🛢️ Lubrication: Apply a few drops once a year silicone oil on the lever joints.
• 🧹 Cleaning: Remove dust and dirt from the body with a soft brush (do not use aggressive detergents!).
• ⚙️ Adjustment: Check the settings every 6 months - over time, the hydraulic oil thickens.
• 🌡️ Temperature: If the door closer is installed outdoors, it may work slower in winter. This is normal - do not try to adjust it in cold weather.

Signs of malfunction requiring repair:

• 🔴 Oil leaking from the housing.
• 🔴 Grinding or knocking during operation.
• 🔴 The door does not close all the way (with proper adjustment).

⚠️ Attention: If the closer Dorma or GEZE started to “spit” oil, do not try to add it yourself - this is a temporary solution. Such models are non-separable and need to be replaced.

FAQ: Frequently asked questions about installing door closers

Is it possible to install a door closer on a plastic door?

Yes, but with reservations. Plastic doors (for example, balcony doors) have a thin leaf, therefore:

• Use mini closers (class EN1–EN2).
• Mount the case not on plastic, but on metal reinforcing profile inside the door.
• Refuse lever models - choose sliding (for example, Apecs 200).

What if the door opens in both directions?

For double-sided (pendulum) doors you need special closers with a symmetrical lever (for example, GEZE TS 5000). They are more expensive than usual, but allow the door to open to 180° in both directions. Installation is similar to standard, but requires precise alignment of the housing.

Is it possible to paint the door closer?

Yes, but only powder paint in factory conditions. Self-painting with an aerosol will lead to:

• Clogging of moving parts.
• Hydraulic malfunction (paint will get into the seals).

If you need to disguise the door closer, use decorative overlays made of plastic or aluminum.

What to do if the closer prevents the door from opening 180°?

The problem is incorrectly selected lever. Solutions:

1. Replace the lever with corner (for example, "knee" instead of direct).
2. Move the closer body closer to the hinges (but not less than 100 mm from the edge).
3. Install the door closer per box (reverse installation).

How to remove the door closer for replacement?

Procedure:

1. Unscrew the lever from the housing (usually there is a fixing screw or latch).
2. Remove the decorative housing cover (if equipped).
3. Unscrew the screws securing the housing to the door.
4. Carefully detach the housing while holding the door (it may open abruptly!).

If the door closer is stuck or rusty, use WD-40 and leave for 10-15 minutes before dismantling.