Installing a door closer: instructions with photos, diagrams and nuances for different types of doors

A door closer is not just an accessory, but a necessary element of safety and comfort. It protects the room from drafts, prevents doors from slamming and extends the life of the fittings. However, incorrect installation can lead to rapid wear of the mechanism or even damage to the door leaf. This article will help you figure out how to choose and install the door closer correctly. metal, wooden or plastic door - taking into account weight, width and opening direction.

We will cover all stages: from preparing tools to fine-tuning the closing speed. We will pay special attention to typical mistakes that beginners make and give recommendations for servicing the mechanism. If you have never encountered such work, don’t worry: with the right approach, installing a door closer takes no more than 1–2 hours.

Before starting work, it is important to understand that there is no universal solution. For example, a door closer for a heavy entrance door weighing 80 kg will not be suitable for a light interior door made of MDF. In the same way, the mechanism with adjustable aftershock (final force) is necessary for doors with seals, but is redundant for ordinary office openings. In the article you will find a table of correspondence between door closer classes and door weights - this will save you from making mistakes when purchasing.

1. Choosing a closer: classes, types and brands

The first step is to determine door closer class according to European standard EN 1154. It depends on the width and weight of the door leaf:

Class	Max. door width (mm)	Max. door weight (kg)	Typical Application
EN1	750	20	Lightweight interior doors
EN2–EN3	850–950	40–60	Standard office/apartment doors
EN4–EN5	1100–1250	80–100	Heavy entrance and fire doors
EN6–EN7	1400+	120+	Industrial gates, doors with reinforced frames

Class models are suitable for most everyday tasks EN2–EN4. For example, closer Dorma TS-73 (EN3) will cope with a wooden door up to 95 cm wide, and GEZE TS 4000 (EN4) will withstand a metal input weight of up to 80 kg. Please note installation type:

• 🔧 Invoices — universal, attached to the door leaf and frame. Suitable for 90% of cases.
• 🔄 Floor-standing — installed in the floor, used for glass doors or design solutions.
• 🔍 Hidden — built into the door frame or leaf. Requires professional installation.

When choosing a brand, be guided by reviews and warranty period. Market leaders - Dorma, GEZE, Apecs and Boda — they offer models with a warranty from 2 to 5 years. Budget options worth considering Fapim or DC-500, but their resource rarely exceeds 50,000 cycles (versus 500,000 for premium brands).

2. Tools and components for installation

To install the door closer you will need:

• 🔨 Drill or screwdriver with a set of drills (for metal/wood, depending on the door).
• 📏 Tape measure, square and pencil for marking.
• 🔧 Set of screwdrivers or bits (phillips, flat).
• 🔑 Hex key (usually included with the door closer).
• 🧲 Level (laser or bubble) to check verticality.
• 🛠️ Template for installation (included with most models).

If there is no template, download it from the manufacturer’s website (for example, for Dorma TS-73 template available here). Also prepare fastener:

• 🔩 For wooden doors: self-tapping screws 3.5×30–40 mm.
• 🔩 For metal ones: M6–M8 bolts with nuts or metal screws.
• 🔩 For glass doors: special clamps (included).

Critical mistake: using screws for wooden doors that are too long. They can pass through the canvas and damage the lining on the reverse side. The optimal length is 5–7 mm less than the thickness of the door leaf.

3. Marking: where and how to attach the door closer

Correct marking is the key to the longevity of the mechanism. First define opening side:

• 🚪 The door opens towards you (indoors) - the closer is mounted on the canvas, the lever on the box.
• 🚪 The door opens on its own (outward) - closer to the box, lever to the canvas.

Use the template included:

1. Place the template on the top corner of the door (hinge side).
2. Mark with a pencil the centers of the holes for attaching the body and lever.
3. Check that the lever does not interfere with opening or touch the wall.

For doors width 80–90 cm optimal body position - 100–150 mm from the edge of the canvas. If the door is heavier than 60 kg, move the fastener closer to the hinges (50–80 mm) to evenly distribute the load.

What to do if there is no template?

If the kit does not include a template, make the markings yourself:

1. Measure the length of the closer body (for example, 200 mm).

2. Step back from the top corner of the door 50–70 mm towards the hinges and 100 mm down.

3. Mark the first point to attach the housing.

4. From it, measure the length of the body and put a second mark.

5. The lever must be attached to the frame so that when the door is closed it is perpendicular to the floor.

4. Installing the door closer: step-by-step instructions

Installation algorithm for overhead door closer:

1. Secure the body on the door or frame (depending on the opening direction) using self-tapping screws. Do not tighten them completely - first you need to level the mechanism.
2. Set the lever on the opposite side (box or canvas). First fix the lever elbow, then connect it to the closer body.
3. Adjust the length of the lever so that when the door is closed it is perpendicular to the floor, and when open it is parallel to the wall.
4. Tighten all fasteners and check the door movement.

For metal doors use bolts with nuts instead of self-tapping screws. Apply masking tape before drilling holes to prevent the paint from chipping. If the door is glass, use special clamps (for example, for a door closer GEZE TS 2000 Glass).

Important nuance: when installing on an outdoor door (for example, in a garage), make sure that the mechanism has frost-resistant grease and protection class not lower IP54. Otherwise, at −20°C the door closer may freeze.

5. Adjustment of closing speed and force

Most door closers have two or three adjustment screwslocated at the end of the housing:

• 🔧 Basic speed (usually screw No. 1) - regulates door movement from 180° to 15°.
• 🔧 Dokhlop (screw No. 2) - responsible for the final closing (last 10–15°).
• 🔧 Backcheck (screw No. 3, if any) - slows down the door when opening more than 90°.

Setting procedure:

1. Open the door 90° and release. If it closes too quickly, turn screw No. 1 clockwise (1/4 turn).
2. Check the door shut: the door should close tightly, but without hitting. Adjust with screw No. 2.
3. If the door “slams” in the last centimeters, loosen the slam.

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Attention: Do not unscrew the adjusting screws more than 2 turns from the original position! This can lead to oil leakage and mechanism failure. The optimal adjustment range is ±1/2 turn.

For doors with sealant (for example, input) increase the clap force to overcome the resistance of the rubber. In offices where doors are opened frequently, it is recommended to reduce the main speed to reduce the load on the mechanism.

6. Common mistakes and how to avoid them

Even with careful installation, you can make mistakes that will shorten the service life of the closer:

• ❌ Body distortion — if the closer is not installed at the level, the lever will touch the box or canvas. Solution: loosen the fasteners and align the mechanism.
• ❌ Wrong lever length - a lever that is too short will increase the load on the mechanism, and a long lever will slow down the closing. Solution: adjust the length according to the instructions.
• ❌ Lack of lubrication — in cold rooms (garages, warehouses), the mechanism may jam without lubrication. Solution: Use silicone grease every six months.
• ❌ Ignoring door weight — installing an EN2 class door closer on a door weighing 70 kg will lead to its breakdown in 1–2 months. Solution: replace with an EN4–EN5 class model.

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Attention: If after installation the closer begins to leak oil, stop using it immediately! This is a sign of damage to the seals. Continued use will lead to complete failure of the mechanism.

Another common problem is lever creaking. It occurs due to dust or corrosion. To resolve:

1. Remove the lever from the body.
2. Clean the swivel joint with WD-40.
3. Apply a drop Litol-24 or silicone grease.

7. Maintenance and service life extension

To make your door closer last longer, follow simple rules:

• 🔧 Adjustment every 6 months — check the closing speed and adjust the screws if necessary.
• 🧴 Lubrication once a year - use silicone compounds for moving parts.
• 🧹 Dust removal — wipe the body and lever with a damp cloth, avoiding abrasives.
• ❄️ Winter preparation - for street closers, before frost, apply a special frost-resistant lubricant (for example, Molykote G-4700).

If the door is used intensively (more than 100 openings per day), reduce the service interval to 3 months. For public premises (shops, offices) door closers with hydraulic brake (for example, Dorma TS-93), which can withstand up to 1,000,000 cycles.

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Attention: Never lock the door in the open position by placing objects under the lever! This leads to spring deformation. To keep the door open at all times, use the hold-open (if it is provided in the model).

8. Features of installation on different types of doors

Each type of door requires an individual approach:

Door type	Installation features	Recommended Models
Metal entrance	Use M6–M8 bolts, check the tightness of the seal	GEZE TS 4000, Apecs 1104
Wooden interior	Self-tapping screws 3.5x30 mm, avoid overtightening	Dorma TS-68, Fapim 550
Glass	Special clamps, no drilling	GEZE TS 2000 Glass, Boda 3301
Plastic balcony	Fastening via reinforcing profile	DC-500, Apecs 1102

For sliding doors use hidden door closers (for example, Dorma ITS-96), which are mounted in the floor or top rail. Their installation requires professional skills, so it is better to entrust it to specialists.

If the door has non-standard opening (for example, in both directions), choose models with bilateral action (for example, GEZE TS 5000 SW). They are equipped with two springs and allow you to adjust the speed for each direction separately.

FAQ: Frequently asked questions about installing door closers

Is it possible to install a closer on a door with an already installed lock?

Yes, but you need to make sure that the lever does not interfere with the operation of the lock. For doors with mortise lock choose door closers with parallel (rather than perpendicular) lever. If the castle invoice, check the gap between the closer body and the striker plate - it should be at least 10 mm.

Which door closer is suitable for a garage door?

For garage doors or heavy metal doors (weight 100+ kg) you need a class door closer EN6–EN7 with frost-resistant grease. Popular models: Dorma TS-94 (withstands up to −40°C) or GEZE TS 5000 (with braking function when opening). Be sure to check availability IP54 or higher.

What should I do if after installation the door does not close completely?

Causes and solutions:

• 🔧 Weak clap - increase the force with screw No. 2.
• 🔧 Door distortion - check the hinges and adjust them.
• 🔧 The seal is in the way - loosen the clamp and lubricate the rubber band with silicone.
• 🔧 Incorrect lever installation - reinstall it according to the template.

Is it possible to paint the door closer to match the color of the door?

Yes, but only body (not a lever!). Use acrylic paint in cans, having previously degreased the surface. Do not paint adjustment screws or moving parts! It is better to buy a decorative cover for the lever (for example, from Dorma or Apecs).

How much does it cost to install a door closer from professionals?

Cost of work in 2026:

• 💰 Standard door (wood/metal) - 1,500–2,500 ₽.
• 💰 Glass door — 3,000–5,000 ₽ (special clamps required).
• 💰 Hidden door closer — 4,000–7,000 ₽ (includes insert into the box).

The price depends on the region and complexity of installation. In Moscow and St. Petersburg, the service is 20–30% more expensive compared to the regions.