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Communities · Article 2026

Door entry and video intercom maintenance for residents' communities

📅 June 2026 ✍️ Fermax Technical Service Valencia ⏱ 8 min read

The door entry system is one of the most heavily used shared elements in any building — and one of the most neglected until it breaks down. If you are a property manager or community president in Valencia, here is why preventive maintenance pays off, what it covers and what it roughly costs.

Why contract preventive maintenance for your door entry system

An entrance panel works outdoors 365 days a year: blazing sun in summer, damp in winter and hundreds of button presses every day. Over time it is only natural that corroded buttons, noisy audio or monitors losing picture start to appear. The difference between a community with maintenance and one without shows in three ways:

  • Fewer urgent breakdowns: most serious faults give early warning signs (weak audio, intermittent calls) that an inspection catches in time.
  • Fewer unexpected levies: replacing a power supply unit in time costs a fraction of repairing the damage it causes when it finally gives out.
  • More peace of mind for residents: the door entry system is security — if it fails, anyone can slip into the lobby, or an elderly resident may be left unable to open the door.

In our daily work around Valencia, Mislata, Torrent and Paterna we see the same pattern: communities that only call when something stops working end up spending more in the medium term. The most expensive faults we attend — like the ones we cover in the 6 most common Fermax intercom faults — could almost always have been avoided with an annual inspection.

💡 Key fact: unlike the lift, maintenance of the door entry system is not legally compulsory, but the community is obliged to keep its shared elements in good condition. A maintenance contract is the cheapest way to comply.

What a thorough maintenance inspection includes

A proper inspection is not just "check it rings and move on". On every visit we go through the installation from top to bottom and hand the property manager a technical report on the condition of each element:

  • Entrance panel: cleaning, condition of push buttons and name-card holders, speaker and microphone volume adjustment, and checking the camera and night lighting on video door entry panels.
  • Power supply: measurement of output voltages, checks for abnormal heating and the condition of the cabinet where it is installed.
  • Wiring and distributors: review of joints, terminal strips and distributors in risers and landings, looking for oxidation, damp or loose wires.
  • Handsets and monitors: call, audio and door-release test flat by flat (or by agreed sampling), with brightness and contrast adjustment on monitors.
  • Door release and entrance door closer: mechanical adjustment of the strike plate, lubrication and checking of opening times.
  • Settings and programming: in VDS and DUOX Plus systems, verification of flat programming, access codes and the concierge unit if there is one.
Technician's tip: always ask for the inspection to include measuring the power supply. It is the component that causes the most "chain reaction" faults in a community: when it runs out of spec, it slowly damages handsets and the panel without anyone noticing — until the whole system stops working.

Recommended frequency: how often should it be checked?

Not every community needs the same schedule. It depends on the age of the installation, the number of flats and how exposed the panel is (a sheltered lobby in Ruzafa is not the same as a panel facing the sea in Malvarrosa):

🏢 Recent installation (under 8 years)
One full annual inspection is usually enough to keep the system performing at its best and preserve warranties.
🏚 Older installation (8-20 years)
Annual inspection with special attention to the power supply, joints and door release — the parts that age first.
🌊 Harsh environments or large buildings
In buildings by the sea, with heavy traffic or more than 40 flats, the panel and entrance door should be checked every 6 months.

Compared with the "repair only when it breaks" approach, preventive maintenance wins in almost every scenario: visits are planned (no emergencies, no residents left without an intercom for days), the cost is spread into small instalments, and the technician knows the installation, so any later fault is diagnosed in half the time.

Sample maintenance plan and the DUOX Plus warranty

Every community is different, but so property managers and presidents can get an idea before requesting a quote, here is a sample plan by building size:

Community sizeRecommended planGuide price
Up to 10 flatsAnnual inspection + priority call-outsfrom 3-4 €/flat/month
10 to 25 flatsAnnual inspection + priority call-outsfrom 2.5-3.5 €/flat/month
More than 25 flatsAnnual or six-monthly inspection by usagefrom 2-3 €/flat/month
With video intercom or access controlExtended inspection (cameras, readers)supplement by equipment

These are deliberately cautious ranges: the final price depends on the system installed (4+N, VDS or DUOX Plus), its starting condition and whether the community wants minor-repair labour included in the fee. We always provide a fixed written quote before anything is signed.

5-year warranty on DUOX Plus for communities

An argument worth raising at the owners' meeting: since 2023, Fermax has offered a 5-year warranty on DUOX Plus equipment installed in residents' communities. If your installation is old and you are considering an upgrade, combining a DUOX Plus renovation with a maintenance plan keeps the community covered for years for very little per month. And if you also want to control access to the garage or communal areas, we can integrate an access control system for communities in the same job.

Frequently asked questions

Is a maintenance contract for the door entry system compulsory in a community?

There is no general legal obligation to contract maintenance for the door entry system, unlike the lift. However, the community is responsible for keeping its shared elements in good condition, and a maintenance contract is the simplest and cheapest way to do so: it avoids unexpected special levies and extends the life of the installation.

How much does door entry maintenance cost for a community in Valencia?

As a guide, a maintenance plan with an annual inspection usually sits between 2 and 4 euros per flat per month, depending on the number of flats, the type of system (4+N, VDS or DUOX Plus) and whether it covers video intercom or access control. We prepare a fixed, no-obligation quote for each community.

What warranty do Fermax DUOX Plus systems installed in communities carry?

Since 2023, Fermax has offered a 5-year warranty on DUOX Plus equipment installed in residents' communities, beyond the standard warranty. It is one more reason to upgrade to DUOX Plus: the community is covered for five years and preventive maintenance helps keep that cover in perfect condition.

Who contracts the maintenance, the president or the property manager?

Either of them can arrange it on behalf of the community. Usually the property manager requests quotes and the owners' meeting approves the contract. We work daily with property managers and community presidents across Valencia and the province: we invoice the community and provide a technical report after every inspection.

Want a maintenance plan for your community?

Free assessment of the installation, fixed written quote and a technical report after every inspection. Valencia city and province.

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