Renovation contracts in Spain: what to include
The contract is not a formality to get the work started: it is the document that decides who pays for every surprise. From 1,500 km away, it is also your main lever.
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Short answer
What must a renovation contract in Spain include?
A solid Spanish renovation contract includes seven things: an itemised budget with measured quantities and named qualities, a completion date with a daily penalty for delay, payments staged against progress — never everything up front —, a written procedure for unforeseen works priced before execution, a written guarantee for the works, the company's current liability insurance, and who files permits and manages waste. On a full renovation — €780–€1,600 per m² over 10–14 weeks — every clause that is missing gets paid for by the client.
The short filter: ask for the draft contract before signing anything and look at what happens when something goes wrong — a delay, a surprise, a defect. A contract that only describes the perfect scenario is not a contract: it is a brochure.
| Clause | What it must say |
|---|---|
| Itemised scope | Measured quantities and named materials, not "as per site" |
| Deadline | A delivery date and a daily penalty for late completion |
| Payments | Staged against progress; a moderate initial deposit |
| Unforeseen works | Priced and approved in writing before execution |
| Guarantee | Scope and duration in writing, and who answers for it |
Payments
The payment schedule is your remote control
How a company wants to be paid tells you more than its website. Healthy payment follows the work: every euro paid corresponds to work already executed or materials already ordered — and when you manage the job from abroad, the schedule is the main lever you hold.
A reasonable structure
- A moderate deposit at signature: it books the diary and the first orders
- Milestones against progress, each released on photo evidence: strip-out done, installations passed, tiling finished
- A small final retention paid after the snagging visit
- Long-lead items (kitchen, joinery) may need payment against a documented order
Red flags
- A large share up front "for materials" with no list of which materials
- A hefty discount for paying without an invoice: without a factura there is no guarantee to claim and no reduced VAT to apply
- A closed price suspiciously below every other quote: it comes back later as "unforeseen works"
- Pressure to sign today because the diary is filling: urgency is a technique, not a coincidence
Unforeseen works
Surprises: the clause that separates professionals from problems
In pre-war Barcelona buildings surprises are real: a rotten communal downpipe behind the bathroom wall, a corroded beam end inside a loadbearing wall, a sand fill under the floor tiles. The difference is not whether they appear — it is how they are handled.
The correct procedure
- The company documents the finding with dated photos before touching it
- It presents the extra cost in writing
- The client approves, or chooses an alternative, before execution
- Nothing is executed — or invoiced — without approval
What is not an unforeseen cost
Anything visible at the technical visit: the state of the fuse board, textured gotele walls, the bathtub that has to go. A "surprise" that was in plain sight is a line item someone forgot to price — and whoever forgot it should absorb it. That is why itemised, measured budgets protect both sides.
The paperwork
The Spain-specific layer foreign owners should check
A Spanish renovation drags a small trail of documents behind it. The contract should say who produces each one — because anything unassigned lands on the owner.
Ask for these before signing
- The company's CIF (tax ID) and registry details, plus its liability insurance certificate — both verifiable, and only companies you should avoid refuse to show them
- Who files the works permit — the comunicat previ or licencia with the town hall — and who pays the fees
- Who notifies the comunidad de propietarios — the building's owners association: lift protection, rubble routes and noise hours are its territory
- If wiring is touched, that the boletin — the official electrician's certificate — is included, with the installer's registration number: the utility will demand it
- An official invoice — factura — for every payment: it is what makes the guarantee enforceable and the reduced VAT on home renovations applicable
Signing and language
Contracts are routinely signed remotely, and a bilingual version is reasonable to request — but the Spanish text is the one that governs. Have the key clauses checked before signing rather than argued about after: a lawyer's hour and a renovation dispute are not the same order of magnitude.
Frequently asked
Common questions
A moderate deposit at signature, with the rest staged against progress milestones. Large advance payments with no work executed and no documented orders are the single biggest red flag when hiring.
Whatever the contract fixes in writing for the works, on top of statutory protections and the manufacturers' warranties on materials. Without an official invoice there is no guarantee you can enforce: the cash discount is paid back right there.
Whatever the contract says — which is why the delivery date must come with a penalty per day of delay attributable to the company. Without that clause a deadline is an intention, not a commitment.
Genuine surprises — what could not be seen before opening up — are priced separately and approved by the client before execution. Anything already visible at the technical visit is not a surprise: it is a line item that belonged in the budget.
Yes — remote signature is routine and no power of attorney is needed for a private works contract. Build the remote control into the clauses: milestone payments against photo evidence, a named contact, and every approval in writing.
Next step
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Rated 5.0 from 14 Google reviews. All real, from real projects.
★★★★★
“Doy un 10 la verdad con el servicio que me han prestado en una reforma de un piso en Barcelona capital, gente muy seria y responsable, gracias.”
Araks SahakyanJuly 2026
★★★★★
“Quedé encantada con la atención y la calidad del trabajo. Se nota que cuidan los detalles y cumplen con lo que prometen.”
Ana RiveraApril 2026
★★★★★
“Servicio muy profesional. Me explicaron todo con claridad y el trabajo quedó perfecto.”
Ana AlemanMarch 2026
★★★★★
“Si estas buscando profesionales responsables para hacer tu reforma, es el lugar indicado. Especializados en reformas integrales con la mejor atención personalizada. 100% recomendados.”
Daniel GarganoFebruary 2026
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“Muy buen trabajo, ha realizado un trabajo muy profesional, ha cumplido en plazo y en calidad.”
Francisco PiñeirosAugust 2025
★★★★★
“Muy buenos profesionales, con excelente resultado.”
Esther DiezJune 2026
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