Planning a balcony: coordinate the space, access and connections
A new balcony is more than a platform in front of a house. Structure, access, drainage, railing and flooring need to suit the building together. A useful enquiry describes the outdoor space you want; professionals then develop an appropriate construction.
Distinguish new construction, replacement and enlargement
Balcony construction can provide a new balcony on an existing house or a new building. Complete replacement or structural enlargement is also a construction task. Describe what should be built and which existing parts should be retained.
Several balconies on an apartment building may differ in size, height or access. A connected installation is not automatically a series of identical components. Give the exact number and describe differing areas together.
Waterproofing alone, surface repairs or changing only the railing have a different scope. They do not automatically become complete balcony construction. Fitting components already available also depends on compatible design and completeness.
| Project | Important boundary |
|---|---|
| New balcony | Structure, building connections and intended access. |
| Replacement | Dismantling, retained parts and new connection details. |
| Enlargement | Assessment of existing work and connection between old and new areas. |
| Several balconies | Exact count, individual dimensions and affected floors. |
Describe usable space and access first
Known width and depth help with initial assessment. Consider the actual use: seating, circulation or access through a door. Columns, doors and other elements can affect the usable area.
Give the floor or affected floors precisely. Dimensions and position of different balconies can be described together. This information helps plan transport, lifting and installation; missing technical details can remain open initially.
A new balcony needs suitable access. Changing a window into a balcony door adds work to the opening, components and connections. A balcony quote does not automatically include that conversion. Floor level, threshold and drainage need coordination.
Have the structure and connection to the house designed
Depending on the project, columns, connections to the building or a combination may support a balcony. Existing construction, ground, loads and free space beneath it are decisive. You do not need to choose a structural system for the enquiry.
Columns may need suitable foundations. Building fixings must match the actual supporting material. An existing facade or tested balcony system alone does not confirm that every connection suits this house.
Thermal bridges and movement at connections are also design matters. If facade insulation is being installed or renewed, coordinate the work. Design, foundations, preparation and installation responsibilities should be identifiable in the offer.
Plan drainage and connections as a system
Rainwater needs to be removed in a way suited to the structure. Floor assembly, channels or outlets and connections to the intended drainage work together. Agree the water route and protection of neighbouring building parts with the contractor.
Door, facade and edge connections matter as much as the open area. A visible finish is not always the waterproofing layer. Assembly height and details need to suit the use and existing building.
Drainage already integrated into a system does not automatically replace every additional connection task. Agree which pipes, finishes and reinstatement are included. Appropriate slope, waterproofing and drainage are professionally established for the actual assembly.
Choose flooring, railing and features sensibly
Steel, aluminium, concrete or combined construction may suit the project. Surface finish and appearance should fit the use and setting. Mention requirements and preferences without specifying every section or connector.
A railing needs a protective function suited to the situation. Height, openings, climbable features and fixings are considered with the finished floor assembly. Choosing any safety-glass sheet does not fully design a glass balcony railing.
A covering, privacy screen, shading or stairs may be wanted as additional features. Discuss them early because they can affect fixings, use and loads. Clarify future care, replacement options and the appearance of undersides as well.
Compare prices for the same complete scope
Count, width, depth and position influence fabrication and installation. Material, finish, railing, flooring and drainage add to the specification. A series of identical balconies is priced differently from several individually different components.
Foundations, design, an access door, dismantling and facade works can be additional. Transport, lifting equipment and available setup space affect installation effort. A price for the balcony element alone is not the total cost of a usable balcony.
Compare equivalent dimensions, features and responsibilities. Check quantity assumptions, unresolved existing conditions and VAT. An unspecified square-metre rate or a foreign-currency price without comparable installation services is not a confirmed complete Swiss price.
| Cost area | What to check in the quote |
|---|---|
| Preparation | Measurement, design, foundations, openings and facade works. |
| Balcony installation | Material, finish, railing, flooring and drainage. |
| Transport and fitting | Lifting equipment, access, floors and connections. |
| Completion | Extras, dismantling, removal, reinstatement and VAT. |
Useful details for the initial enquiry
Describe the outdoor space you want and the existing situation you know. Technical choices and local checks can then be undertaken with the appropriate professionals.
- Task. State new construction, replacement, enlargement or fitting only.
- Count and floors. Give the exact count and affected floors.
- Dimensions and differences. Describe known widths, depths and differences together.
- Access to the balcony. Explain existing access and intended window or door changes.
- Features and timing. Add material and feature preferences, location, access and timing.
From the balcony idea to coordinated installation
Local requirements and the actual building determine implementation. An initial enquiry or product promise does not replace project-specific design and necessary approval.
- Describe the project. Describe the project, count, dimensions and position.
- Assess existing conditions. Clarify existing conditions, structure, access and local requirements.
- Coordinate components. Coordinate foundations, building connections, drainage and features.
- Compare quotes. Compare quotes with equivalent services and explicit assumptions.
- Agree installation. Agree preparation, handling, installation and handover in the intended condition.
Frequently asked questions
Can a balcony be added to an existing house?
It may be possible depending on the building and location. Existing structure, ground, access and local requirements need assessment. This does not establish universal suitability of every facade.
Do I need to choose a balcony with or without columns?
No. Describe the space you want and what needs to remain clear underneath. Professionals develop the appropriate support and connection solution.
Is a new balcony door automatically included?
No. If a window needs changing or a new opening is required, preparation, the door and connections should be explicitly allowed for in the offer.
Can I request several balconies on different floors?
Yes. Give the exact count and individual floors. Differences in size, access and features can be described together.
Is a square-metre price enough for comparison?
No. Structure, foundations, connections, floor, railing, drainage and installation conditions matter alongside area. Compare the same finished result including separate work and VAT.
