looking for a hermetic product or hermetic door kit (modular) ?

Hermetic Sliding Door Solutions



Sevenoaks KIT Solution gives you extreme flexibilty

Long product lifecycle (25-30 years) – Low maintenance – High quality – Unique hermetic concept – Unique and simple rail construction – Easy to install – Easy to assemble

The Sevenoaks S5 hermetic sliding door is of a modular concept. It is the only door in the field of hermetic solutions that can be treated as a real door kit. The hermetic closure is of a very simple construction and will satisfy the demands of the hospital (operating theatre, radiation room, rest room, MRI scan rooms, etc.), the cleanroom and theatres and cinemas. The door kit is very versatile in use in that it can be used as a purely hermetic solution, an acoustic (32dB) product and/or a radiation door that can have 3 mm of lead in the door body.

1. Order The Door Kit

Simple, complete and fast delivery.

2. Assemble At Your Own Production Facility

Assemble with ease with our step-by-step assembly plan.

3. Install On Your Project

Smooth installation with our step-by-step installation guide.


The COVID chaos gave us new insight

  • Global will be local again
  • We will choose the familiar over the
  • National and regional thinking will have preference over technologies from far away
  • Close by is overseeable and safe
  • We prefer to do business in a small world
  • We prefer working with our own people,
    own materials and own products



Door Configuration

Our Hermetic Door is available in six different configurations

The maximum width and height of the door is 2000×2500. The working dimensions are 1900×2430

  • Standard hermetic door
  • Standard bi-parting door
  • Standard full glass door
  • OT door and 1 mm lead inlay
  • OT  door and 2 mm lead inlay
  • OT  door and 3 mm lead inlay
  • Standard door sound reduction: 27 DB – 32 DB

Sevenoaks S-5 The logical Solution

In maintaining a certain air hierarchy for hygienic reasons a slider will have minimal disturbance of air movement. While the slider cuts the air and the particles in the air, the hinged door sweeps like a broom.

Disturbance of the air-hierarchy is huge and a factor 5 compared to a slider. Each door opening will have a tremendous effect on air-hierarchy, air hygiene and restoration time to come to a set equilibrium. The door should be silent in use and should give free passage for trolleys and beds to go in. No threshold or sill to disturb a smooth passage.

The construction of the door should have enough flexibility to allow for: a door blade that can contain 2-3-4-5- up to 12 mm of lead for radiation purposes

S–5 Door for the Operating Theatre

The S-5 is a slider and never in the way . Opening time is short and a variety of open positions can be Programmed: nurse-, trolley- and bed-opening. The S-5 sliding door

functions relatively independent of dimensions. Larger sliders are as easy to use as are smaller ones. Automating sliders is easy and can even be done later in the process.

The biggest advantage, however, will be that the slider takes up little valuable space. It is never in the way, doesn’t  need guidance in opening and closing, is silent, no contact passages, hygienic and 100% hermetic.

Sevenoaks S-5 for more flexibility

Flexibility that can accept door blade constructions to reduce sound (27 dB, 32 dB, 40 dB, 55 dB) in case of MRI-scan rooms. The airtightness of the door should work both ways (under pressure and overpressure) in order to be equipped as a quarantine door  and operating room door at the same time.

The Sevenoaks S-5 satisfies all criteria: a simple and effective rail construction which will take care of 100% hermetic closure. The door blade weight that will ensure firm and solid sealing. Sevenoaks mainly thinks in sliders and non touch door passages. Automation will be fully integrated in the door concept. Hygienic (cleanable) quick, not in the way (slider), choice of opening positions (nurse, trolley, bed), no sill but floor guiders outside of the clear opening, reliability of the automation, service and maintenance concept and not to forget very economically priced!!


Hygiene is one of the most important criteria when we talk of smart hospital solutions. The S-5 is a slider and stands out positively when we think of viruses and wound infections that might negatively influence the operational outcome.

Hermetic closure and minimising the problem of infection, sliding and thus a minimal disturbance of air particles resulting in a very short air restoration time, easy to clean and sliding on the outside of the operating room are all elements of the S-5 that will classify this door concept as a perfect entrance solution embracing many, if not all, of the customer’s needs.

Energy saving

To reduce the necessary energy level one has to think in compartments. Compartments that are destined to have different air-pressures must be sealed off hermetically in order to properly maintain air-hierarchy. Compartments that have different air-pressure, are adjacent and indirectly connected with each other face two major problems:
Maintaining a certain air-hierarchy and keep air restoration time as short as possible.

Energy reduction has to do with the decision on how big the compartments will be, on how many direct or indirect open passages are allowed, on the number of interconnections between compartments, on hospital protocols on surgical teams and their protocols, and the way one tries to control human behaviour.

Years of Experience

Countries Delivered


Customer Rating

The fact that each expert has more than 25 years of experience show the dedication to the product and Sevenoaks

We are experienced

We Have Over 25 Years of Experience in The Industry

Sevenoaks is small group of experts. Consisting of the developers of the orginal Hermetic Concept and the designers of the modular door concept.

The fact that each expert has more than 25 years of experience show the dedication to the product and Sevenoaks

About us

Providing the Highest Quality in Hermetic Door Technology

Automation options

We will help you with the automation on the door if needed. Some of the possibilities are listed below.

Market Sectors

The Sevenoaks Hermetic Door Solutions are designed for Hospitals (OT – Radiology), Pharmaceutical Industry, Healthcare (Laboratories – Test rooms), Modular Operating Rooms, Scan Facilities and Quarantine Rooms

Advanced technology

The simple and effective design of our products result in a number of unique qualities

  • Compatible with most automations
  • Sound reduction can go up to 34 dB in a standard configuration
  • No re-enforcement necessary

Strict Hygiene

Hygiene is of paramount importance in the Sevenoaks Hermetic Door design

  • Sliding principle keeps particle movement to a bare minimum
  • Smooth and Cleanable surface
  • 100% Hermetic Closure

Message Us

Get In touch below. Ask Any Question. We are Here to Help

Call Us

(+31) 6 281 070 54

Office Location

Leidsevaartweg 11 GB94
2106NA Heemstede
The Netherlands

Open Hours

Monday-Friday: 9am – 6pm