Audiotermes inspection of the floor structure piece by piece, identification of the wood-borer in every beam and bait stations with monitoring every 6 to 8 weeks.
Visual assessment visit included, at no cost and with no obligation. The technical study with audiotermes, which confirms every point of damage, is quoted separately and you decide with the figure in front of you. We work Monday to Saturday.
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In Arenys de Munt we inspected with audiotermes the 26 beams of one floor structure, one by one, on 3 July 2026. The count came out like this: woodworm in all 26, termite traces in 4 and a longhorn beetle in 1. Our technicians detected no live termites that day, and even so we proposed a preventive programme with bait stations, because the traces show the colony has been inside.
Arenys de Munt had 3,305 inhabitants in 1850, 3,003 in 1900 and 3,006 in 1950, according to the Gran Enciclopèdia Catalana and the municipal register published by Idescat. A hundred years without growth are a hundred years without any economic reason to rebuild a floor structure. The wood put in place in the 18th century is still there, with its original section and no previous treatment whatsoever. Barcelona and Blanes have that curve exactly the other way round.
The core of Arenys de Munt went up in the 18th century: the municipality grew from 585 inhabitants in 1718 to 1,420 in 1787, according to the Gran Enciclopèdia Catalana. That is where the terraced houses climbing the hillside come from, with the ground floor resting directly on the ground and exposed timber-beam floor structures. That ground floor in contact with the soil is the subterranean termite's doorway.
Our technicians lay out the bait barrier looking at the ground they stand on, not at a map. On the hillsides of Arenys de Munt what appears beneath the house is a loose, granular material that crumbles in the hand and drains fast. A subterranean termite digs through that soil without resistance, so the stations are planned wherever the house touches the ground and not only where the damage shows.
Towards Torrentbò and Collsacreu there are still masia farmhouses and farmsteads with structural wood that has never been treated. In that kind of floor structure there is not one pest, there are three at once. Common woodworm gnaws the sapwood of almost every piece, the longhorn beetle attacks one specific beam and the subterranean termite leaves galleries in those bearing close to the ground. Telling them apart piece by piece is the work that comes before any quote.
Zone by zone, what was built, what wood sits inside and where the insect gets in. It is the reading our technicians make before deciding where the check starts.
| Zone of Arenys de Munt | Dominant construction | Wood present | Way in | First sign |
|---|---|---|---|---|
| the old quarter | Terraced houses on a slope | Exposed beams on the ground floor | Wall bases against the ground | Beam lifted 2 to 3 millimetres off its bearing |
| Torrentbò | Stone farmhouses with old floor structures | Untreated beams and rafters | Wood resting on wall and ground | Fine frass under the beam |
| Collsacreu | Isolated farmsteads in the woods | Roof structure and porches | Direct contact with forest soil | Oval longhorn beetle holes |
Source: ERRADICAT technical criteria from own work in Maresme · retrieved on 4 September 2026.
3,006
inhabitants in 1950, almost the same as in 1850: a century without new building
Source: Gran Enciclopèdia Catalana and Idescat, El municipi en xifres
How it was counted: A series of historical censuses and municipal registers published by third parties, taken at three cut-off points half a century apart to read the age of the built stock, not its size. It is not crossed with any of the company's case files.
Arenys de Munt had 3,305 inhabitants in 1850, 3,003 in 1900 and 3,006 in 1950, and today has 9,527 (2025).
A municipality that gains not even three hundred inhabitants in a hundred years does not pull down floor structures: it keeps them. That series explains why in Arenys de Munt we still open up ceilings with the original 18th-century wood. It also explains why an inspection of 26 beams returns woodworm in all 26. It is a figure about the age of the stock, not about incidence: it says what wood lies under the plaster, not how many houses in the municipality are affected.
The data comes from our own technical case files. Open the case and you will see the date, the method and the case file number; anything that could identify the client or the property stays out.
The owners wanted to know what they had before deciding anything. Our technicians went over the 26 beams of the floor structure with audiotermes on 3 July 2026 and noted every piece by its number. Beams 11 and 13, in the corridor, had lost 15 % of their section at the head, and beam 13 also showed visible termite galleries. In beams 24 and 25 only traces remained. Six pieces turned up lifted 2 to 3 millimetres off their bearing, five in a row and the sixth in Room 2, and in beam 4 there was longhorn beetle activity. With woodworm in all 26 pieces and no live termites that day, the report recommended reinforcing the compromised beams. The preventive programme was settled at five indoor bait stations, with checks every six to eight weeks for half a year.
You do not need to see an insect. These three are what we actually find when we reach a home, and all three can be checked without tools.
Mud tubes the width of a pencil climbing the wall, the skirting board or the inside of a wardrobe. They are the tunnel the subterranean termite builds to shield itself from light and dry air. If they are damp inside, there is activity right now.
In spring the colony releases winged reproducers. They fly little, shed their wings quickly and pile up on a window sill or by a terrace door. Finding wings indoors means a mature colony nearby.
The termite eats the inside and spares a thin surface layer, so the element looks intact. Tap it with your knuckles and the sound changes from solid to hollow. On flooring it feels like a board that gives underfoot.
All three can share the same floor structure, and each is treated differently. These are the differences you can see without instruments.
| Trait | Subterranean termite | Common woodworm | Longhorn beetle |
|---|---|---|---|
| Exit hole | Leaves no visible exit holes | Round, 1 to 3 mm | Oval, up to 1 cm |
| Frass | Leaves no frass: it fills the galleries with mud | Very fine dust under the piece | Coarser frass, with lumps |
| Tell-tale sign | Mud tubes or trails along walls and skirting boards | Small piles of fine frass next to tiny holes | Audible gnawing sound inside the beam |
| Treatment | Bait station system until the whole colony is eliminated, 6 to 12 months | Pressure injection with non-return valves and double fumigation | Injection and double fumigation, with anoxia for high-value pieces |
Source: Higiene Ambiental, technical journal of the sector · retrieved on 21 July 2026.
In Arenys de Munt it pays to look twice a year rather than once: the winged subterranean termites appear on the window sill in spring, and the longhorn beetle detected in beam 4 of that floor structure emerges, when it does, in the height of the warm season.
Subterranean termite Reticulitermes spp.
Activity: from March to June · Peak: April and May.
Drywood termite Kalotermes flavicollis
Activity: from August to October · Peak: September.
These dates are indicative windows. Flight depends on temperature and humidity, so each year it starts earlier or later: if you see winged insects outside these months, it is still a reason for an inspection.
Source: Technical literature of the timber sector · retrieved on 21 July 2026.
We start by listening. The audiotermes amplifies the sound inside the wood and locates activity without lifting the floor or drilling anything, and from that comes a floor plan of the property with every point of damage marked.
Then the stations go in. We place indoor bait stations over the located sources and outdoor bait stations spread around the building's perimeter, loaded with bait for subterranean termites, a TP8-type biocide. The perimeter barrier is the part most providers skip, and it is the one that reaches the whole colony.
From there it is a matter of checks: every station is monitored, the bait replenished and the activity recorded until the nest stops responding. There is no shortcut, and anyone promising eradication in one visit is not talking about subterranean termites.
We publish the real timescales because they pre-qualify better than any promise. If someone wants a fix in one afternoon, better they know before calling.
Total duration:Monitoring every 6 to 8 weeks for 6 months; if activity appears, 6 to 12 months until the nest is eliminated
Included
A walk through the property with the naked eye to see what there is and how far it goes. The assessment visit is included, at no cost and with no obligation, and it is the starting point when the signs are unclear.
1 working day, with the figure agreed first
Percussion sounding, listening with audiotermes, species identification and location of the access routes from the ground. We always recommend it: it confirms every point of damage and decides where each bait station must go. It is quoted separately, so you see it with the scope in front of you and it starts when you say yes.
A few days later
Floor-by-floor plan of the property with the issues found, the extent of the damage and the treatment proposal with your written quote. It is part of the technical study.
1 working day
Placement of the indoor bait stations over the sources and of the outdoor perimeter barrier around the building.
Every 6 to 8 weeks
Check of every station, bait replenishment and activity record. The frequency adjusts to what the system shows.
6 to 12 months
The timescale depends on the size of the colony. It is the real range of the bait system and it cannot be compressed.
3 years
Three years from eradication, with the annual inspection included at no cost.
The visual assessment visit is included, at no cost and with no obligation: when the signs are unclear, it is the way to clear doubts. Even so, we always recommend the technical study with audiotermes, a floor plan of the issues found and a report, which is quoted separately: it confirms every point of damage, fixes where the treatment must act and from it comes your written quote, so you decide with the figure in front of you.
Source: ERRADICAT's intervention protocol · retrieved on 4 September 2026.
Because the traces in four beams say the subterranean termite has been inside and the house had never had any treatment. The audiotermes reports what can be heard on the day of the visit: our technicians listen for activity, they do not certify that a colony is dead beneath the ground. With visible traces and no barrier in place, the honest way to settle the matter is to put in indoor bait stations. Then we come back every six to eight weeks, for half a year, to read whether the system registers consumption.
When the sound section that remains is not enough, treatment does not bring it back. In that floor structure two corridor beams had lost 15 % of their section right at the head, which is the bearing, and another six were lifted 2 to 3 millimetres off their seat. That is reported for reinforcement or replacement, and whoever signs off the structure assesses it. Our technicians treat the wood and measure the damage; they do not replace an architect's judgement on a load-bearing element.
Yes. In the floor structure we inspected in Arenys de Munt all three lived side by side: woodworm in the 26 beams, termite traces in 4 and a longhorn beetle in a single piece, number 4. Each leaves a different mark and each is treated differently. The subterranean termite is handled with a bait system, because the colony lives in the soil and not in the beam. Woodworm and longhorn beetle are treated on the piece itself: prior stripping when a coat seals the surface, non-return valves for the pressure injection and double fumigation to finish.
It makes a difference to where it gets in. On the hillsides of Arenys de Munt the ground beneath the house is granular and crumbles, and a subterranean termite digs through that material with hardly any resistance. A ground floor resting directly on the soil leaves the wood within its reach without it ever having to come into view. That is why our technicians place the stations following the contact between house and ground, and not only under the stain visible on the ceiling.
No, they are two different options. The assessment visit is a visual inspection, it is included, at no cost and with no obligation, and it suits cases where the signs are not clear. The technical study is quoted separately and is the one we recommend as soon as there are signs, because it confirms every point of damage and settles where to act; the quote arrives with its report. That is what was done in Arenys de Munt: audiotermes beam by beam, numbering of the 26 pieces, a plan of findings and a written report with the condition of every one. That is the difference between looking at a ceiling and knowing what is going on inside each beam.
In Arenys de Munt we cover the whole municipal area, including the old quarter, Torrentbò and Collsacreu, and we also reach Arenys de Mar, Sant Iscle de Vallalta, Sant Vicenç de Montalt and Canet de Mar. We work Monday to Saturday, 7:30 to 22:00.
From Arenys de Munt, the comarca's capital is a quarter of an hour away and poses the opposite problem: in Mataró the affected wood usually appears when a commercial ground floor is renovated, not in an old floor structure in plain view.
Termite treatment in Mataró, with the premises or the home still in useBarcelona settles as a residents' association what a single owner settles in Arenys de Munt: there the joist runs from one flat into the next and the report is drawn up for the whole building.
Getting rid of termites in the houses of Barcelona provinceBlanes turns Arenys de Munt's population curve upside down: there the housing stock multiplied in two decades and the activity turns up in parquet laid over screed, not in wood two centuries old.
Termite treatment in BlanesEach municipality has its own page, with real work from its area and the detail of how we work there.
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The ROESP is the Spanish official register of pesticide establishments and services. It is the legal requirement for applying professional-use biocides, and not everyone offering these treatments meets it.
The technician who signs the reports, Sergi Casadevall Casas, has been treating termites and woodworm in Barcelona and Girona since November 2011, holding the biocide applicator licence. Visits are always made by our technicians, never by salespeople.
The conditions and timescales go in the intervention report, signed. For termites, 3 years from the certificate of colony elimination, with the annual inspection included at no added cost.
The technical study ends in a floor-by-floor plan of the property, with the issues found marked and the real extent of the damage. It is quoted separately and the document stays in the owner's hands, to work with the architect or to seek a second opinion with data on the table.
Spanish Royal Decree 830/2010 establishes that a pest-control company's registration in one autonomous community is valid to work in the rest. That is why we cover both provinces with the same registration and the same team.
Content of this page reviewed by our technicians on 4 September 2026.
We ask what you have seen and where. If the signs are unclear, we book the visual assessment visit, which is included and takes little time. And when the signs are there, what we recommend is the technical study: audiotermes, a floor plan of the issues found and a report, with your written quote so you decide with the figure in front of you. If the wood is healthy, we tell you that too: you save yourself the treatment.
602 433 979The visual assessment visit is included, at no cost and with no obligation: when the signs are unclear, it is the way to clear doubts. Even so, we always recommend the technical study with audiotermes, a floor plan of the issues found and a report, which is quoted separately: it confirms every point of damage, fixes where the treatment must act and from it comes your written quote, so you decide with the figure in front of you.
We serve the provinces of Barcelona and Girona.
* Required fields