How to choose a renovation company in Cádiz (no surprises)

Price matters, but what really saves you from headaches is how a company actually works. Cádiz has plenty of good tradespeople, but also its share of cost overruns, delays and shoddy workmanship that end up in formal complaints. Before you sign with anyone, you need to know exactly what to ask for, what to scrutinise and where the usual traps are hidden. This guide gives you a step-by-step method for choosing a renovation company in Cádiz, comparing quotes with a clear head and avoiding the mistakes that cost the most money.

What renovation work costs in Cádiz: real prices per m²

Before you can judge any quote, you need a frame of reference. Prices across the province of Cádiz in 2025–2026 fall within the ranges below, per square metre, depending on finish quality and the complexity of the work. Knowing these figures lets you spot an inflated quote — or a suspiciously cheap one — straight away.

These ranges include materials and labour, but exclude VAT (10% for primary residences over two years old). If a quote falls below these figures without a clear explanation, line items are missing or the quality of materials will be well below what you are expecting. If it comes in above them, ask the company to walk you through where the extra cost is coming from.

Tip: in flats within Cádiz's old town — El Pópulo, La Viña, Barrio de la Palma — costs tend to run 10–20% above the average. Narrow streets make skips and deliveries difficult, many buildings have no lift, and protected elements such as facades, original joinery and listed ironwork must be preserved.

Permits and licences for renovation work in Cádiz

A reputable renovation company in Cádiz should know which licence you need before work begins. If nobody raises the subject of permits, treat it as a warning sign. Within the municipality of Cádiz, the process depends on what you are actually doing. Interior work that leaves the structure and layout untouched is handled through a minor works responsible declaration (declaración responsable de obra menor) submitted to the Council's Planning Department. Works that affect the structure, move internal walls or alter the facade require a full building permit (licencia de obra mayor), along with a technical project signed by an architect.

If your property sits within Cádiz's historic centre — designated a Historic Site by decree since 1972 — any work touching the facade, window openings, external joinery or listed elements also requires a heritage report and sign-off from the Junta de Andalucía's Department of Culture. That process can add between four and eight weeks to your schedule. In nearby towns such as San Fernando, Chiclana, El Puerto de Santa María, Puerto Real and Jerez, the procedure is broadly similar, though each council has its own timescales and fees. A good company will either handle the permit on your behalf or, at the very least, tell you exactly what you need and where to submit it.

Checklist: what to ask before hiring a renovation company in Cádiz

The seven points below are what you need to have confirmed before signing anything. If a company cannot provide all of this, keep looking. You are not asking for too much — this is simply the professional minimum.

• A fixed, written quote with every line item broken down — materials, labour and VAT. Do not accept a 'we'll see as we go' approach. The quote must specify the brand, model and colour of every material: if it just says 'standard tile' or 'basic tap fitting', you have no idea what will actually be installed and no grounds to complain afterwards.
• A written completion date and schedule with intermediate milestones. A professional company will tell you when they start, when each phase ends (demolition, structural work, services, finishes, joinery, painting) and when they hand the job over. For a full renovation of an 80–100 m² flat in Cádiz, a reasonable execution period is eight to fourteen weeks, plus four to six weeks beforehand for planning and permits.
• A written guarantee. The law requires a minimum of one year for defects in workmanship and up to three years for habitability defects (Ley de Ordenación de la Edificación). Ask for this to be confirmed in the contract.
• A single point of contact who answers your questions, coordinates all the trades and keeps you updated on progress. If you are speaking to a different person every week and nobody has the full picture, the project will fall apart.
• Real completed projects you can actually view — ideally in Cádiz or the surrounding area. Detailed before-and-after photographs, or better still, the chance to visit a finished job. Ask for at least three or four references.
• Valid public liability insurance and proper registration as a company or self-employed trader. Ask for a copy of the insurance policy: if a worker has an accident in your home and is uninsured, the problem becomes yours too.
• A signed contract before work begins. The contract must cover the quote, the schedule, payment terms, penalties for delays and the guarantee. Without a contract, you have nothing to fall back on if things go wrong.

Red flags when choosing a renovation company

Knowing what to ask for is only half the job — you also need to recognise the warning signs that point to future problems. If you spot two or more of the following with the same company, walk away regardless of how appealing the price looks.

• Open-ended or cost-plus quotes with no fixed final price. Costs spiral when there is no ceiling and you lose all control. In Cádiz we have seen renovations end up costing 40–60% more than the original estimate for exactly this reason.
• A suspiciously low price. If a quote comes in 30–40% below the others, it almost always means that line items are missing (plumbing, electrics, waste disposal), that the materials are significantly inferior, or that 'extras' will start appearing once work is under way.
• Nothing in writing — no contract, no schedule, no fixed scope. If they will not commit on paper, they are not committed to your project.
• Multiple jobs running simultaneously with nobody answering the phone. If the person in charge is juggling five projects across Cádiz, San Fernando and Chiclana at once, yours will advance in fits and starts and deadlines will slip.
• Asking for more than 30–40% of the total up front. A standard first payment of 20–30% on signing, to cover the initial materials purchase, is normal. After that, payments should be tied to specific milestones, with the final 10–20% held back until you sign off on completion. If they want everything before they start, the risk is entirely yours.
• No verifiable presence: no website, no Google reviews, no listings in trade directories, no projects to show you. It does not necessarily mean they are bad, but you have no way of checking anything they tell you.
• Starting work without permits. If a company tells you 'you do not need a licence' for work that clearly requires one, they are offloading the risk of a council stop-work order and a fine onto you.

How to compare renovation quotes in Cádiz

Getting two or three quotes is standard practice, but the key is making sure they all cover exactly the same line items. Without that common baseline, you are comparing different things and will end up choosing on price alone without understanding what you are giving up. The most effective approach is to draw up your own list of items and ask each company to price them individually.

Below is an example of what a properly structured comparison should look like. The figures are indicative for an 80 m² flat in Cádiz with mid-range finishes, but what matters is the format: the same list of items, the same breakdown, so you can compare line by line.

Look at Company C in the example: the total is significantly lower, but plumbing is not included and demolition has not been broken out. Once you add the missing plumbing — roughly 4,000–5,000 EUR — the real difference shrinks considerably. And the material quality, which this table does not show, could account for the rest. Comparing like this, line by line, protects you from choosing a 'cheap' quote that ends up ballooning with extras.

A useful trick: before requesting quotes, draw up your own list covering these items — demolition, structural work, plumbing, electrics, flooring, kitchen, bathroom, painting, joinery — and send it to all three companies asking them to price each one separately. That way you can be sure everyone is quoting the same scope and you can compare line by line.

Renovating in Cádiz's historic centre: what you need to know

If your property is in a neighbourhood such as El Pópulo, La Viña, Barrio de la Palma or the Extramuros area, you will encounter constraints that simply do not exist in Chiclana, Puerto Real or the newer developments around Jerez. The historic intramuros area of Cádiz has been a protected Historic Site since 1972, and that status imposes real restrictions that affect both cost and timeline.

In practice, this means you cannot change the design of the facade, replace external joinery with a different style (for example, switching from timber to aluminium without authorisation), alter window openings or touch listed structural elements without approval from the Department of Culture. The process adds between four and eight weeks to the programme and may require a formal heritage report signed by a qualified technician. On top of that, deliveries and skip collections through narrow streets drive up logistics costs by between ten and twenty per cent compared with a property that has straightforward access.

A renovation company with genuine experience in Cádiz knows these procedures and has them built into the way it works. If the company you are considering does not raise any of these points when you tell them your flat is in the historic centre, they almost certainly lack experience in this part of the city.

Realistic timelines for renovation work in Cádiz

Timelines are one of the biggest sources of conflict between clients and contractors. To give you realistic expectations, the table below shows typical execution periods across the province of Cádiz, not counting the preliminary planning and permits phase, which adds a further four to six weeks.

Minor unforeseen issues — a delay of one or two weeks — are perfectly normal, particularly in older properties where opening up walls can reveal plumbing problems, outdated wiring or hidden damp. What is not normal is an open-ended delay with no explanation. If the company has committed to a completion date in writing and misses it without good cause, you have grounds to make a formal complaint. Without anything in writing, you have no argument.

How we work at Reformas By Bianca

We have been working across Cádiz, San Fernando, Chiclana, Puerto Real, El Puerto de Santa María and Jerez for years. The way we work is designed to eliminate exactly the problems this guide describes. That is not a coincidence: every part of our process exists because we have seen first-hand what happens when it is skipped.

• Free site visit: we see the property in person, listen to what you need, take measurements and assess the real condition of the building before quoting.
• Fixed written quote within three to five working days, with a full breakdown by line item and specified materials — brand, model and colour. The price you sign is the price you pay.
• One project at a time: your renovation has our full attention until we hand over the keys. We do not split teams across multiple sites or leave your job standing while another one moves forward.
• Completion date and a detailed schedule before you sign, with intermediate milestones so you can follow real progress.
• Written guarantee and a single point of contact who takes your calls, coordinates all the trades and keeps you informed throughout.
• Genuine local experience: we know the ins and outs of renovating in Cádiz's historic centre, the permit requirements of each council in the Bay area, and the reliable local suppliers.

Fixed price. One project at a time. Written completion date and written guarantee. No surprises. If you are comparing renovation companies in Cádiz, book your free site visit and see the difference for yourself: call us on 694 405 465 or write to us at hola@reformasbybianca.com.