Masonry in Carouge

Are you looking for a mason in Carouge to open up a wall, repair a facade, pour a slab or build a low wall? Masonry in Carouge deals with a very varied building stock: low 18th-century houses on one side, more recent apartment blocks on the other. This page presents the usual types of work, what the commune changes for them and how to request quotes that can be compared.

Masonry in Carouge: the most requested work

The trade covers walls, openings in a wall (load-bearing or not), foundations, slabs, low walls, small extensions, and concrete and stone repairs. A mason normally holds a CFC (Federal Certificate of Proficiency) as a mason, but it is up to you to ask what the company has actually done in situations similar to yours.

In Carouge, a few requests come up logically:

• opening up a thick partition to link two rooms, particularly in an older home;
• repairing damaged render or stone on a facade or around a courtyard;
• pouring or redoing a slab for a terrace, a garage or a utility room;
• building or repairing a boundary wall or a low wall between two gardens;
• repairing cracked or spalled concrete on a balcony, an outdoor staircase or a retaining wall.

Vieux-Carouge: low houses, inner courtyards, grid-pattern streets

Vieux-Carouge was built in the 18th century under the kings of Sardinia. It has low houses, inner courtyards and streets laid out in a grid. For a mason, this changes several practical things.

First, old walls are not treated like a modern concrete wall. Depending on the thickness and the original materials, a repair requires understanding how the wall was built before touching it. A render that is too watertight or an unsuitable mortar can make a problem worse rather than solve it: a serious quote must therefore say which material will be used and why.

Next, inner courtyards limit access. Bringing in bags, a mixer or props, or removing rubble, may have to be done by wheelbarrow through a narrow passage. This affects how the site is organised, and therefore the price. Say from the outset how one gets into the courtyard or the building.

Finally, the district is protected. Any work visible from outside, such as an opening cut into a facade or a change of render, may be regulated. The exact rule depends on your building: check it with the commune or the relevant cantonal service before signing anything.

Pinchat, la Fontenette and the more recent buildings

Around Pinchat and la Fontenette, the districts are more recent. The needs there are different: there are more concrete walls and slabs, balconies, cellars and garages. Concrete repairs are frequent there: cracks, chips, exposed reinforcement, joints that come apart.

In these developments, many homes are rented. The work then depends on a decision that is not yours alone: that of the landlord, the managing agent or the co-ownership. Geneva has many rental buildings run by managing agents, and the request often has to be addressed to them, with a description of the work and, if possible, a written quote.

What proximity to Geneva and the Arve means

Carouge is a town next to Geneva, on the other side of the Arve, with a tram to Geneva. The canton is very urban, on the lake shore, with mild winters on the plain and hot summers in town. For a masonry site, this translates mainly into urban constraints: tight access, parking for company vehicles, close neighbours, and noise and dust to manage with them.

The rather mild climate limits some frost-related worries, but does not remove the need for good drainage behind a buried wall or a low wall, nor for protecting new masonry on very hot summer days. Ask the company: how does it protect the site depending on the season?

Opening up a wall in Carouge: what the rules require

Opening a load-bearing wall is the most tightly regulated case. It requires a structural engineer’s calculation, which determines the beam or lintel needed and how the loads are transferred. It also often requires a permit. In Geneva, building permits are issued by the canton, through the Office des autorisations de construire.

If the wall is not load-bearing, the procedure is generally lighter, but you must first be certain of it. In a building, a partition that looks harmless may contain ducts or pipes, or act as bracing.

Always check, before work begins, what your project requires with the commune or the relevant cantonal service. Work carried out without the necessary permit can be stopped, or even have to be redone.

If your project also affects the building envelope, for example with insulation, energy falls under the cantonal energy law (LEn) and the cantonal energy office (OCEN), on which the Buildings Programme subsidies in Geneva depend. The conditions should be checked with these services, and before starting work.

Agreements to obtain before work starts

• House owner: the project may depend only on the permit and the zoning rules.
• Co-owner: the structure, facades and courtyards are often common areas; the agreement of the co-ownership is then required.
• Tenant: the written consent of the landlord or the managing agent comes first, before any detailed request for a quote.
• Neighbour: a low wall on a plot boundary or a slab close to a party wall deserves a prior discussion.

Preparing your request to receive comparable quotes

The more precise the description, the more alike the quotes will be, and the more meaningful the comparison. Prepare:

1. The exact location: Vieux-Carouge, Pinchat, la Fontenette or another district, type of building, floor.
2. The nature of the work: opening, repair, slab, low wall, extension.
3. Photos and approximate measurements: width of the planned opening, area of the slab, length of the low wall.
4. Access: courtyard, staircase, lift, narrow passage, parking possibilities.
5. Your status: owner, co-owner, tenant, and the state of the landlord’s or managing agent’s agreement.
6. Your preferred timetable, without making it a requirement until the company has seen the site.

Reading a masonry quote

A good quote describes the work, not just a total. Check that it specifies:

• what is included: demolition, propping, removal of rubble, supply and installation of materials, finishes;
• who handles the engineer’s calculation and the permit procedures, if your project requires them;
• the materials planned, particularly for stone or render repairs on older buildings;
• what is excluded, for example redoing paintwork or floors affected;
• the terms for changes if the site reveals an unpleasant surprise behind a wall.

The cost varies with access, the condition of the existing structure, the size of the work, the presence of a structural calculation and district constraints. Two quotes can differ because they do not cover the same thing: compare the lines, not just the total.

When your description is ready, you can request a quote: your request is passed to craftspeople and companies in the region, who will contact you to prepare a free, no-obligation quote.

Useful pages for your project in Carouge

• The trade in general: masonry
• The commune: work in Carouge
• The canton: canton of Geneva
• Other work in Carouge: thermal insulation in Carouge, plumber in Carouge, roofing in Carouge