Leben in der Schweiz
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Plumber in Aarau – Single, Sanitary Installer

About my life in Switzerland

My name is Tomáš, I am 32 years old and I come from Ostrava. I live in Aarau, the capital of the canton of Aargau, in a small one-room apartment near the old town, a ten-minute walk from the train station. I am single — the long-distance relationship with my girlfriend in the Czech Republic didn’t work out when I left, so I am rebuilding my life here. I work as a plumber (Sanitärinstallateur) in a private installation company, mainly on apartment renovations and new construction projects throughout the canton of Aargau — I install water and sewage systems, underfloor heating, and sometimes heat pumps. Previously, I worked for five years in Prague, but the wages and development opportunities in Switzerland are incomparable. I chose Aarau consciously instead of Zurich — it is closer to my construction sites in Aargau, the rents are significantly lower, and in 25 minutes by train, I am in the center of Zurich if I feel like visiting a bigger city. After two years here, I feel confident, although Swiss German can still surprise me on the construction site.

Household
Location
Monthly costs 2 646 CHF
Left over each month 3 209 CHF

Monthly costs

Total 2 646 CHF per month
Share of monthly costs by category. The same figures are listed in the table below.
Monthly costs by category
Category Amount Share
Czynsz podstawowy 32 m², studio, near the old town, 2nd floor 950 CHF 36%
Żywność basic groceries (Migros, Coop, Denner) 400 CHF 15%
Ubezpieczenie zdrowotne basic premium (CSS, franchise 1 500 CHF) 385 CHF 15%
Wyjazdy do Czech (fuel, gifts for family) = once every 6-8 weeks 220 CHF 8%
Obiady na budowie i restauracje 160 CHF 6%
Auto 1 395 CHF/yr ≈ 116 CHF/mo 5%
Dodatkowe opłaty (Nebenkosten) heating, water, waste 110 CHF 4%
Osobiste ubrania robocze i prywatne 80 CHF 3%
Transport A-Welle subscription, city zone + construction site surroundings 75 CHF 3%
Piwo, spotkania ze znajomymi 60 CHF 2%
Siłownia 55 CHF 2%
Telefon Salt 35 CHF 1%
Total per month 2 646 CHF 100%

Monthly income

Sanitary Installer

Gross
6 900 CHF
Net
5 855 CHF
13th salary
No
Workload
100%
Detailed components of earnings
Detailed components of earnings
Component CHF / month CHF / year Notes
Basic salary (gross) 6 400 CHF 76 800 CHF Tarif GAV Sanitär, level "qualified fitter"
Allowance for work at height/difficult conditions 180 CHF 2 160 CHF Work in shafts, basements, on roofs
Seniority allowance 220 CHF 2 640 CHF For 2 years in the company
Construction site expenses (Spesen) 100 CHF 1 200 CHF Commuting to distant construction sites in the canton
Total gross 6 900 CHF 82 800 CHF
Monthly deductions & charges
Monthly deductions and charges
Item % of gross CHF / month Notes
AHV (pension) 5.3% − 366 CHF Old-age and survivors' insurance
IV (disability insurance) 1.0% − 69 CHF Invalidity insurance
EO 0.2% − 14 CHF Income compensation scheme
ALV (unemployment) 1.0% − 69 CHF
UVG (occupational accident insurance) 1.4% − 97 CHF Higher than in office jobs — physical work
BVG (2nd pillar pension) 6.0% − 414 CHF Mandatory, higher rate due to age
Withholding tax 2.1% − 145 CHF Aargau, single, no children
Total deductions 17.0% − 1 174 CHF
Net salary 5 726 CHF

The bottom line

Total net income
5 855 CHF
Monthly costs
−2 646 CHF
Left over each month 55% of net income
3 209 CHF

Health insurance

CSS
Excellent
Model
Telemedicine (Telmed)
Franchise
1 500 CHF
Premium
385 CHF/mo

Physical work on the construction site means a higher risk of minor injuries, so I did not choose the highest possible franchise (2 500 CHF), but the middle variant. ⚠️ It is worth checking if the employer covers occupational accident insurance (UVG). In my case, yes, so I only pay for non-occupational accidents and illness.

Total premiums 385 CHF/mo

My car

Škoda Octavia Combi 2.0 TDI

Škoda Octavia Combi 2.0 TDI

Year
2017
Fuel
Diesel
Engine
2 l (1968 cm³)
Power
150 PS (110 kW)
Gearbox
Manual
Drivetrain
Front-wheel drive
Insurance (per year) 780 CHF Partial casco Depends on the driver’s age, experience and claims history.
Road tax (per year) 265 CHF depends on engine capacity, the canton of Aargau has slightly lower rates than Zurich Depends on the engine size and power.
Service & running costs (per year) 350 CHF tools and transport equipment are carried in the trunk, so the car wears out faster On average per year.

My notes on car costs in Switzerland

Before renting an apartment, I always check the cost of a parking space. In many cities, a garage space can cost from 100 to 250 CHF per month, so it is worth including this in the budget.
I wash my car regularly, especially in winter. Road salt can quickly accelerate the corrosion of the chassis and suspension components, so after the winter season, I always do a thorough wash including the undercarriage.

Swiss Max:

Swiss Max:

Unlimited internet at maximum 5G speed (up to 1.7 Gbit/s). Unlimited calls & SMS.
Unlimited

Switzerland

Internet at maximum 5G speed (up to 1.7 Gbit/s).
1 GB

Europe

Calls and SMS
Unlimited

My opinion on SALT: Price-performance ratio: Salt offers really attractive, competitively priced packages without data limits, which is a huge plus in Swiss reality.

Key facts

City
Aarau
Residence permit
Permit B (residence)
Home
Rented
Employment
Permanent

Questions & answers

What was your professional path from the Czech Republic to Switzerland?

I finished vocational school in Ostrava in 2014, specializing in sanitary and heating installations. I worked for five years in a local company in Prague, where I earned about 32 000 Czech korunas net per month (about 1 250 CHF). In 2023, a colleague from the industry who had moved to Aargau a year earlier told me that installation companies in Switzerland were looking for specialists and paying several times more. I started looking for job ads on jobs.ch and through the Sanitär- und Heizungsinstallateure Schweiz portal. After two online interviews and one in person in Aarau (the company covered the train and hotel costs), I received an offer. The biggest challenge, as I mentioned, was the recognition of qualifications — during those four months, I worked as an assistant for 4 800 CHF gross, only then was I promoted to the full rate of a qualified fitter.

Is standard German enough on the construction site in Aargau?

On the construction site, you hear mainly the local Swiss dialect (Aargauerdütsch, quite similar to what you hear in Zurich), and honestly, that was harder for me than German itself. Documentation, material orders, and protocols are in standard German, but daily communication with colleagues from the brigade, with clients, or with the foreman takes place in the dialect. For the first half-year, I understood maybe 40% of what was said to me, now it is definitely better. I attend a German course once a week at the Volkshochschule Aarau (150 CHF per semester), and I learn the dialect mainly “on the job” by listening to my work colleagues.

How much do you manage to save and what are you planning to do with that money?

I save an average of 3 300 CHF per month. The lower rent compared to Zurich helps a lot. The plan is simple: I want to accumulate capital for my own installation workshop in the Czech Republic or Slovakia, where the costs of starting a business are much lower than in Switzerland. I think I will stay in Aargau for another 5-6 years, gain experience here with modern technologies (heat pumps, intelligent heating systems), and then return to the region and open my own business, using Swiss know-how and the saved capital.

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