Dorma Door Adjustment in Warsaw: Closer Speed and Backcheck

What you can set on a Dorma closer

Dorma is a German door hardware maker, now part of the dormakaba group. Dorma closers come with a standard arm or with a slide channel, where a roller runs in a track. Settings differ between models, but closing speed and the latching action over the last few centimetres are usually adjustable. Some models also have backcheck, which brakes the door if it is flung open or caught by wind. Which valves your closer has is shown on the body and the model marking.

If the door hits the wall, backcheck can help, but do not rely on it alone; a door stop protects the wall better. And if the door will not pull shut into the latch, check the hinges and threshold first, then the closing force. On a heavy front door an undersized closer will not cope whatever the setting.

Oil on the body or under the door means the seals have given up. That closer normally gets replaced, since no adjustment will save it.

A slide channel looks tidier but needs a straight installation: if the track is fitted askew, the roller starts to stick and no valve will fix that. When the closer has been moved before or the arm type changed, the tradesperson checks this too. Hold-open is not available on every model either. If you need the door to stay open, say so in the order, and he will tell you whether your closer can do it and whether it is allowed on that door.

The request, step by stepDoor adjustment in the app, screen by screenPick the service, take a photo of the door closer and the estimate shows up straight away. After the address and date, the request goes out to independent handymen nearby. They send their offers with a price, and you compare and choose.Service and a photoAddress and a day that suits youOffers from handymen, you chooseStep 1 of 5Windows and doorsDoor adjustment80–150 zł · per jobEstimate≈ 80–150 złPhotos: show what needs doingNext Step 2 of 5Where?Warsaw, Praga-PołudnieWhen suits you?WeekdayWeekendAny dayDescriptionThe door closer shuts the door too fastSend request 4 offersDoor adjustmentWarsaw, Praga-PołudnieSentMDMarcin D.80 złI’ll adjust the door so it doesn’t rub.ChooseOSOleh S.100 złI’ll clear the dust afterwards.ChooseKBKrzysztof B.120 złBuy the handle yourself or I’ll bring one.ChooseDPDmytro P.140 złTaking the old doors away is extra.ChooseDescribe the job

Rather hand the job over? More here: interior finishing in Warsaw.

Mistakes that come up most

• Opening a valve too far. On many closers that is where leaks start.
• Fast closing plus a strong latching action: the door slams and the lock takes a beating.
• Wedging open a door that has to close on its own for fire safety.
• Fitting a light closer on a heavy door and trying to “adjust” it into working.

What to have ready

• A photo of the closer and its fixings with the marking readable.
• A video of the door opening and closing.
• For a stairwell or office door: the building administrator’s agreement.

Placing the order

Describe in the app what is wrong with the door and attach photos or a video. Tradespeople send bids with their own price and timing. You pick one on price, ratings and reviews, and only then do you swap phone numbers and the address. You pay the tradesperson directly, and he issues the invoice.

A new closer, door stop or parts are charged separately as materials. The tradesperson answers for his adjustment and will correct his own settings. A worn mechanism and someone else’s installation are not on him.