Every dead day between jobs costs you between €150 and €220 + VAT: that is what a self-employed construction professional invoices on average per day to an end client in 2026, according to Insertia. If three or four slip away each month, that is €450–880 not coming in. And it is not for lack of demand: the sector is short of hundreds of thousands of pairs of hands.
The problem: a self-employed diary has holes, and every hole costs money
Construction accounts for 12.2% of Spain's ~3.38 million self-employed workers — around 412,000 professionals — according to Infoautónomos. Roughly one in four workers in the sector is self-employed. And they all share the same silent enemy: dead days.
You know them well: the renovation that finishes on a Tuesday and the next one that does not start until Monday, the quote that falls through at the last minute, the client who postpones, the materials that do not arrive. Days when your overheads keep running (social security, the van, insurance) but nothing comes in.
The maths is simple:
| Item | Employed (collective agreement / market) | Self-employed to end client |
|---|---|---|
| Per hour | ~€10.50/h gross on average; €16–19/h under the Bizkaia agreement | €20–30/h + VAT |
| Per day | €60–67/day on the Madrid tables; ~€100/day market rate for a labourer | €150–220/day + VAT |
| Per month | Labourer €1,200–1,500; skilled tradesperson €1,700–2,200 gross | €2,500–3,500 net |
Your day is worth €150–220 + VAT. Every gap you do not fill is lost margin, not chosen time off. The gap between what you invoice a client and a payroll salary "can exceed 50%", according to Insertia — but only if the diary is full.
The demand is there: construction is short of 700,000 workers
This is not about looking for clients where there are none. The employers' body CNC estimates that construction is short of around 700,000 workers, in a sector that employs ~1.3 million people and contributes close to 10% of GDP. Its president, Pedro Fernández Alén, puts it bluntly: without solving the labour shortage, housing plans "are destined to fail".
More signs the wind is behind you:
- The sector is ageing: the average age went from 37.3 in 2007 to 45.1 in 2022, and vocational qualifications in building fell by 45.6%, as reported by Prinex citing CNC and INE data. Fewer people coming through means more work for those already active.
- Your trade is on the most-wanted list: bricklayers, labourers, electricians, plumbers, painters, formworkers and skilled tradespeople, according to The Objective. In 2025 alone, Andalusia recorded 240,072 contracts in the sector, Madrid 110,580 and Catalonia 99,794.
The conclusion: a self-employed tradesperson's problem is not demand. It is connecting that demand to the specific gaps in the diary, which appear at short notice and pay well precisely because of it.
Ways to get more work as a self-employed builder
There is no silver bullet; there is a combination. These four reinforce each other.
1. Turn one-off jobs into repeat clients
The cheapest client is the one who already knows you. Property managers, renovation studios, small contractors and builders' merchants need reliable trades all year round. When you finish a job, explicitly offer to stay on as their go-to for maintenance and touch-ups. A couple of recurring arrangements stabilise half your calendar.
2. Team up with other trades
The electrician who knows a serious plumber, the bricklayer with a painter they trust: trades that recommend each other all invoice more. Build your network of two or three complementary trades and pass work between you — what for you is a job you cannot take is a paid day for your ally, and next time the referral comes back.
3. Keep a minimum digital presence
You do not need to be an influencer: you need to show up when people look for you. A Google listing with real photos of your work, reviews you actively ask clients for when you finish, and a WhatsApp number you answer quickly. That alone puts you ahead of most of your competition.
4. Fill the gaps with single days on Freeday
The first three build over the medium term. But the dead day the day after tomorrow is not filled by a Google review: it is filled by an app built for exactly that. Freeday is designed for the gap in your diary: work by the day, geolocated and in real time, posted by households and companies that need a professional now — often because a trade has dropped out mid-project. You decide which days you open and which jobs you take. Downloading and signing up are free, with no subscription.
🛟 Got loose days this week? On Freeday, work by the day near you reaches you in real time. Fill your free days: sign up free — App Store · Google Play
How Freeday works if you are a professional
The full flow, from signing up to the day being paid:
- Download the app free from the App Store or Google Play.
- Create your professional profile: your trade (or trades), your working area and your experience.
- Mark your availability: open only the days you have free. You control the diary.
- Get geolocated alerts in real time when a household or a company near you needs to cover a day of your trade.
- Close the job and charge your rate. You set the price; as a market reference, a self-employed tradesperson invoices €150–220/day + VAT to an end client, and you can cross-check it against the daily rates by bricklayer grade.
Photo: Mikael Blomkvist · Pexels
How is it different from a classic quotes portal? Freeday is not about bidding for big projects against ten competitors: it is about covering specific days near you, today or this week. It is the use case the brand is named after: saving the day — the client's, when they are left stranded, and yours, which gets invoiced instead of going blank.
Frequently asked questions
How much does a self-employed construction worker charge per day?
Between €150 and €220 + VAT per day to an end client, according to Insertia. In monthly terms, a self-employed worker in the sector lands at €2,500–3,500 net after social security contributions, income tax and expenses.
How do you get clients as a self-employed builder?
Combine four routes: repeat clients (property managers, renovation studios, small contractors), collaboration with other trades, a well-kept minimum digital presence, and an app for single days like Freeday to fill the gaps in your diary.
How much does it cost to sign up to Freeday as a professional?
Nothing: downloading and signing up are free and there is no subscription. You create your profile with your trade and your area, mark your availability and receive alerts for work by the day near you in real time.
Is there real demand for work in construction?
Yes: the CNC estimates the sector is short of around 700,000 workers, and the most sought-after profiles include bricklayers, labourers, electricians, plumbers and painters. The problem is not demand, it is connecting it to your free days.
Is it worth taking single days between jobs?
Almost always: a single day is paid at the full rate (€150–220 + VAT to an end client) and does not tie you down long term. Four dead days a month turned into invoiced days is €600–880 extra.
And if a long job comes up? Does Freeday tie me to anything?
No. You control your availability: when a long job starts, you close your days in the app and stop receiving alerts. When you have gaps again, you open them. No lock-in, no penalties and no subscription.
🛟 Stop giving away dead days Sign up free as a professional on Freeday and turn the gaps in your diary into invoiced days: appfreeday.es — App Store · Google Play