Airtight & watertight construction

    Draughts, moisture or cold air around your windows or doors? At Noevo, we provide a perfect airtight and watertight finish – tailored to your project, with durable materials and a 10-year warranty.

    Request quoteCall usView case studies

    Explain where the problem is visible or noticeable and add overview and detail photos to your enquiry.

    In brief

    Airtight & watertight construction in brief

    Airtight & watertight construction prevents draughts, moisture ingress and energy loss around windows, doors and facade joints. Noevo locates leaks, selects the right combination of EPDM, SIGA tape, PEC or sealant and finishes each connection durably with 10-year warranty.

    Draughts, air leaks or moisture at window and door junctions?

    Noevo assesses where the junction fails and which sealing method suits the window, door, facade or penetration.

    • Locate air leaks around windows and doors
    • Make junctions airtight and watertight again
    • Match EPDM, SIGA foil, PEC or sealant to the situation
    • Work on renovation and new-build projects

    Before & after sealing

    From leaks to comfort – see the result of professional sealing

    After
    Before
    Before
    After
    View more results

    Benefits, approach and applications

    The problem

    30% of energy loss in buildings is due to poor sealing. Cold bridges, air leaks and moisture problems lead to an unstable indoor climate, higher energy costs and a lower EPB score. Correct airtightness is essential for both renovation and new construction.

    Our solution

    Our approach starts with an on-site visit to locate leaks. Based on your situation, we choose the right technique for an airtight and watertight finish. No demolition work, no complete replacement – just a durable solution with a 10-year warranty.

    • 10-year warranty on adhesion and material choice
    • Lower energy costs and better EPB score
    • SIGA tape, EPDM, PEC and sealant customized to your needs
    • Suitable for both renovation and new construction
    • Fast execution, minimal disruption
    • One expert for waterproofing, airtightness and joinery repair

    1. 01

      Site visit & analysis

      We visit on-site to locate leaks and determine the right technique.

    2. 02

      Custom quote

      You receive a clear quote with materials and approach.

    3. 03

      Expert execution

      EPDM, SIGA tape, PEC or sealant – depending on your situation.

    4. 04

      Check & delivery

      Result tested and guaranteed for 10 years.

    EPDM membranes
    Waterproof membranes under and around windows against infiltration
    PEC membranes
    Water-resistant membranes for doors and sliding windows
    SIGA tape
    Airtight window-wall connection, essential for EPB
    Elastic sealant
    UV-resistant facade sealing for visual finish

    • New construction with blower door test – airtight connection for EPB
    • Renovation of faulty installations or aged joints
    • Sliding windows and low foundations with custom EPDM
    • Draught and cold bridge problems around windows and doors
    • Ytong sockets at sliding windows or facade foundations
    • Visual facade sealing with sleek sealant

    What do we need for targeted advice?

    Photos of the junction, the window or door type, site region and a description of draughts or moisture help prepare the right inspection.

      Frequently asked questions

      Airtight prevents draughts and energy loss, watertight prevents moisture infiltration. We address both for a complete solution.

      An airtightness test that is mandatory for new construction for the EPB score. We ensure your connections pass this test.

      For new construction, strict EPB standards apply and a blower door test is mandatory. For renovation, it's not required, but you can save up to 30% on energy costs and improve living comfort.

      Areas where heat escapes faster, often due to poor sealing. This leads to condensation and moisture problems.

      Usually 1-2 working days. For larger projects, we plan multiple days with minimal disruption.

      Yes, we often combine with film repair or relacquering. This way you tackle your entire exterior in one go.
      View all frequently asked questions

      Interested in airtight & watertight construction?

      Request a free quote, tailored to your needs and budget

      Request quote

      Related services

      Discover related Noevo specialties

      Relacquering

      Professional restoration of lacquered surfaces

      Bekijk

      Film repair

      Expert repair of damaged films and coatings

      Bekijk

      Discover more