How often must a SHEV be maintained?

At least annually by a qualified specialist firm. In special buildings (assembly venue, high-rise) shorter intervals may apply. Plus a monthly visual check by the operator.

A qualified specialist firm with applicable proof of usability qualification and manufacturer training for the installed systems. We are certified for the common manufacturers.

How long does a maintenance take?

A small stairwell system: 1–2 hours. A mid-size hall: 4–6 hours. A logistics hall: 1–2 days. Critical defects are reported immediately.

What happens if maintenance is skipped?

The DIBt approval lapses. Insurers can refuse payment in case of a claim, management is personally liable. Authorities can prohibit occupancy.

Are costs tax-deductible?

Fully deductible as business expense for commercial property. In residential, partly as a household-related service — coordinate with your tax adviser.

Can you maintain during operation?

Yes. We coordinate inspection times with operations — outside peak production hours, nights or weekends.

SHEV maintenance

Annual testing and maintenance of your smoke and heat exhaust system — all smoke detectors, drives, panels and supply-air paths. Log book, defect report and an immediate offer for remediation from a single source.

Request maintenance contract

applicable proof of usability Annex BQualified inspectors24/7 emergency service in NRW

Why SHEV maintenance is not optional.

A SHEV is only as reliable as its last maintenance. Motors wear, smoke detectors get dusty, batteries age, supply-air paths get blocked. The operator is obliged under the applicable proofs of usability and the state building code to have the system regularly tested and maintained by a qualified specialist firm — at least once a year, more often for heavily loaded systems. In addition, the operator must perform a monthly visual check (indicator lamps, supply-air paths). Missed maintenance leads to lapse of the DIBt approval and jeopardises insurance cover — management is personally liable in case of damage. We maintain all common SHEV systems brand-agnostically, document every step in the log book and offer immediate remediation for defects — one contact, one responsibility, one documentation.

What happens with defects.

Which variant fits depends on the installation context, the existing building and the fire-protection concept — we advise per project.

A — critical

Immediate remediation — trigger disturbed, system non-functional. Operator informed right away.

from €180

B — substantial

Time-bound remediation (typically 4–8 weeks). Function limited, but trigger possible.

from €390

C — minor

Note for next maintenance. No functional limitation.

from €950

Complex PSHEV system

Fans, ducts, control, volumetric flow measurement.

from €1,500

All prices are indicative per maintenance visit, excl. defect rectification. Defects are offered separately.

Where we maintain regularly.

We cover every typical building type — from residential to industrial complexes with hundreds of components per site.

Industry & production

NSHEV halls, PSHEV systems, stairwell SHEV.

Logistics

Rooflight-band NSHEV over large areas — often integrated with high-bay racking.

Underground garages

Powered CO ventilation plus extraction.

Retail and sales venues

Smoke curtains, fans, smoke exhaust dampers.

Assembly venues

Theatres, halls, event venues — often with a mandatory inspection expert.

Office & residential

Stairwell SHEV and atrium extraction.

applicable proof of usability Annex B
Scope of inspection
Defines what is tested during the annual maintenance — and how.
applicable proof of usability
Fire detection technology
If the SHEV panel is linked to the FDA.
DIBt / abZ
Approval retention
Maintenance per standard is the prerequisite for keeping the DIBt approval.
BauO NRW
Operator duty
Ensure functional capability of all fire protection installations.
Insurance conditions
Proof obligation
Insurers require a complete inspection history in case of a claim.

Ten steps to documented functional capability.

Structure and order follow applicable proof of usability Annex B. Each step with measured value and finding in the test protocol.

Qualified inspectors

Qualification as a competent person for SHEV systems, manufacturer-certified for all common systems.

Digital log book

Complete inspection history, instantly available, optional access via project portal.

Maintenance bundle

SHEV, fire doors, hold-open devices, fire dampers in the same visit — one invoice process.

Defect management

On defects, direct offer for remediation — one contact for inspection and repair.

01
1 — Visual check
Completeness, fixing, labelling, access.
02
2 — Smoke detector function
Each loop individually — test gas, trigger behaviour, sensitivity.
03
3 — Manual call points
Function, labelling, accessibility at all positions.
04
4 — Motor drives
Opening, closing, run time, limit switches.
05
5 — Opening width
Measurement to full opening in accordance with the applicable proofs of usability or approval.
06
6 — Supply-air following
Doors, flaps and supply-air devices — open on trigger.
07
7 — Backup power
Battery status, charge level, self-test of the panel.
08
8 — FDA linkage
If connected: signal exchange and logic with the fire detection panel.
09
9 — Wind and rain sensors
Correct shutdown in storm and rain, if fitted.
10
10 — Logging
All measured values, observations and defects in the test protocol.