Things our clients ask us most.

One number, one contract, all of it in — design, licences, trades, materials, finishes, site management, clean-up. The price we quote at contract signing is the price you pay at hand-over.

Variations only happen if you ask for them (change of spec, added room, new equipment). In that case we issue a revised fixed price before the work starts. We don't do the "we hit something unexpected, here's extra 30%" dance that cost-plus builders rely on.

Three stages, unless the project is very small or very large, in which case we agree a custom schedule.

30% at contract signing (locks design, orders long-lead equipment). 50% at site start. 20% at calibrated hand-over, after you've approved the room.

All payments are against invoice, IVA included where applicable. We don't work cash-only and we don't ask for unstructured deposits.

Service-dependent. Typical ranges: starry ceiling retrofit — 1 to 2 weeks on site. Acoustic treatment of a single room — 2 to 3 weeks. Media lounge — 4 to 6 weeks. Dedicated home cinema — 8 to 12 weeks. Full-home reforma — 14 to 26 weeks depending on scope.

Timelines are written into the contract with start and hand-over dates. If we miss a date for anything inside our control, we absorb the delay.

Three studio bases, one office each: Marbella, Málaga, Madrid. We work across Andalucía (Costa del Sol and Costa de la Luz), the Balearics (Mallorca, Ibiza), and greater Madrid as standard.

We've delivered projects in Barcelona, Valencia, Portugal (Algarve, Lisbon) and the South of France on an ad-hoc basis. Travel and subsistence are quoted transparently as a separate line.

Three years on the build (workmanship, finishes, installation). Two years on equipment beyond the manufacturer's warranty, which we handle for you — you deal with us, not with a call centre in another country.

First re-tune visit in year two is included free. After that, an annual maintenance contract is available.

Yes. Sonortec S.L. is a registered Spanish construction company with full public liability (€3M), professional indemnity, and site risk insurance. All trades on site are our own employees (PAYE), not subcontractors — we can show you certificates on request.

For reformas, we hold the relevant RESA registrations and use a collaborating technical architect for licence-bound work.

Free, no obligation, one visit. We come to the room with a laser measure, a laptop, and two people. We measure the space, listen to what you want it to do, and take enough notes to produce a cost range that evening.

Within two weeks you get: a written brief, a design direction, an acoustic model (for rooms that need one), a material schedule, and a single fixed price. If you say no, that's it — no follow-up sales calls.

Functionally, yes. The smallest projects we take on: starry ceilings — no minimum, we'll do a single nursery. Acoustic — a single treated room. Home cinema — media lounge (min. ~€15K). Reformas — ~120m² apartment refit or a full dedicated cinema.

Below those, we'd rather recommend a good local trade than underserve you.

A 16m² room with at least 2.4m ceiling height can host a convincing 5.1.2 lounge cinema. Below that, the room's own modes and reflections start to fight the speakers and we'd recommend a "media lounge" approach — screen plus stereo subwoofer plus soundbar — rather than forcing a full surround install.

For a dedicated dark-room cinema with seating tiers and full Atmos, aim for 28m² or more.

Yes — most of our cinemas are retrofits. We work non-invasively where possible: slim-profile wall build-outs, cable runs behind existing skirting, ceiling treatment that sits 40–80mm below original.

Where the room has a deal-breaker (a single thin partition wall to the next bedroom, say), we'll tell you up front what structural intervention would unlock a better result — and what the compromise looks like if you choose not to.

For a dedicated cinema, yes. The height channels change the experience from "good TV" to "cinema" — especially on modern film scoring and native Atmos music mixes.

For a media lounge used mostly for news, sport, and occasional films, a well-tuned 5.1 with a good sub is often better spent than 7.1.4. We'll tell you honestly which your room and your usage justify.

Electronics: Denon, Onkyo (receivers), Optoma, Epson, Sony (projectors), Polk, Heco, Audio Pro (speakers), Lumene (screens), Artnovion (acoustic).

We're independent — no brand pays us to specify them. We choose for the room and the budget. At the top end we'll design a Trinnov/Storm Audio/JBL Synthesis build; at entry level we've put together cinemas using almost every combination in the catalogue.

Two passes: measurement-based (REW or Dirac) for response flatness, phase alignment, sub integration, and speaker time alignment; then ear-based against known reference material, with the client in the chair for the final pass.

We hand over a printed calibration report and a re-tune visit in year two, included. If you change seating or add a rug, we'll come back and re-tune.

We build almost exclusively in fibre-optic. A single light engine drives every point, so the ceiling never has flicker, hot-spots, or individual LEDs failing behind the plasterboard. The engine lives in an accessible cupboard; the ceiling itself is sealed for life.

LED is only right for architectural pattern work where you want per-pixel animation (Milky Way drift, shooting stars, constellation labelling). Even then, we'll often use a hybrid — fibre for the starfield, LED only for the moving layer.

A flat starfield retrofit adds 40–60 mm of build-up — the fibre layer plus termination plate. Anything above 2.5 m finished height is comfortable.

For integrated acoustic treatment or a deeper "sky plenum" (Milky Way + drift layer, or a starry stretch ceiling with 3D curvature), expect 80–120 mm.

Most bedrooms we do are warm-white with a slow-breath dim — the ceiling goes to sleep with you.

RGB is worth it when you want to move through moods (sunset → indigo → deep night), for a child's room with a specific story (northern lights, planetarium), or for hospitality spaces that want to shift across the evening.

Commercial projects (spas, restaurants) are nearly always single-colour for a calmer, more architectural read.

Yes — most of our installs are retrofits. We work over the existing structure with a shallow plenum, reroute any conflicting services, and make good the perimeter.

A bedroom retrofit typically takes 5–7 working days with the room out of use.

The fibre layer is sealed for life and needs nothing. The light engine has a replaceable LED module (about every 15–20 years of normal use) and lives in an accessible panel — above a cupboard, in a plant room, or in the ceiling void of an adjacent corridor.

We include a first re-tune visit in year two to adjust density, brightness, or add new scenes at no cost.

Different problems. Treatment fixes how a room sounds from the inside — echo, harsh treble, boomy bass. Soundproofing stops sound leaking in or out.

Most homes need treatment. A cinema, recording room, or any room sharing a wall with a bedroom usually needs both. We'll tell you straight which your room actually needs after the site visit — we don't sell soundproofing for the sake of it.

Only if you want it to. The panels can be slat-wood, stretched linen, micro-perforated plaster, or completely invisible behind an acoustic-transparent ceiling finish. We match the room's architectural language — most of our clients' visitors can't tell the treatment is there until they're told.

In a few cases (mastering rooms, studios) we'll lean into the visible acoustic aesthetic because it's what the room is about.

We measure the room first — reverb time at six positions, frequency response, early reflections, modal behaviour. That becomes an acoustic model.

We then place absorbers at first-reflection points, diffusers at rear and side walls, and bass traps in corners — all sized to the room's measured problems, not a template. You get the model and the placement drawing before we install anything.

Very little. The acoustic layer is specified for transparency, not aesthetics, so the outer finish is almost entirely your choice.

Past projects: linen in twelve shades, three kinds of walnut, micro-cement-finish plaster, perforated leather, and one project in hand-dyed raw silk. Send us a sample and we'll tell you whether it works acoustically.

Yes — and we separate the briefs. Restaurants, offices and hotel public space care about speech intelligibility, privacy between tables, and keeping the ambient level down during peak hours.

We design and certify to the room's intended use (noise class, reverb target, speech-transmission index) and issue a compliance report at hand-over. Useful for hospitality licensing and workplace well-being audits.

Yes. Planning licence, structural engineer (if required), technical architect, works notices, industrial end-of-works certificate. You sign where you need to; we chase the rest. Included in the fixed price.

For projects touching heritage buildings or Costa del Sol coastal setbacks, we work with a collaborating architect whose fees are also inside the quoted price.

Sometimes — if works are contained to specific rooms and we can zone the site with dust barriers and separate access.

For a full-home reforma, we'll always recommend moving out. It's faster, cleaner, and the cost of a month's rental is almost always less than the project time you save. We can introduce you to a local relocation agent.

In-house joinery workshop in Marbella. Kitchens, wardrobes, wall panelling, cinema seating frames, wine cellars, libraries — all drawn in the studio, built in the workshop, installed by our own crew.

For loose furniture and art we collaborate with a handful of interior designers we trust. We can bring one in or work with one you've already chosen.

Same fixed-price principle, scaled. We've delivered clinics, a hotel spa, restaurants and two offices. Commercial projects add: use-change licences, compliance reporting (accessibility, acoustic), and out-of-hours site scheduling where operations continue during build.

Minimum commercial project is ~150m². Below that we'd rather refer you.