Utrecht · approx. 10 km from Utrecht
Sealant work in Bunnik
Bunnik lies on and along the stream ridge of the Kromme Rijn, and that is an in-between position: sandier than the basin soils further on, but looser than the sand of the Heuvelrug. Within the village the ground therefore differs from street to street, and with it how much a facade moves and how wide the joint should be.
Since 1959
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What matters in Bunnik
Between stream ridge and basin soil
A village centre with older ribbon development along the Kromme Rijn, post-war residential neighbourhoods and an office park on the edge towards the motorway.
Along the old ribbon by the river there is scattered building of varying age with timber window frames and older glazing; anything dating from before 1994 is suspected of containing asbestos until testing shows otherwise. The post-war residential neighbourhoods were put up in rows with identical window frames and identical original sealant, which is now well past its service life. On the edge towards the motorway there are office buildings with glazed facades, facade cladding and expansion joints over great lengths: very different work from that in the residential streets, with different substrates and different products.
What sets Bunnik apart is that the ground changes within a short distance. On the stream ridge itself there is sandier material and a building moves little; in the lower parts alongside there is more clayey ground that settles more. Two comparable houses five hundred metres apart can therefore call for a different joint width. We measure that at the site survey instead of keeping to one size for the whole village.
In the residential neighbourhoods parking is plentiful and free, and we park right outside the door. Along the ribbon by the river the road is narrow and stopping is more difficult; we arrange that in advance. On the office park we prefer to work outside office hours, because sealant work on glazed facades produces noise, dust and sometimes odour, and that goes badly with a building full of people.
Ten kilometres from our base, a quarter of an hour's drive. That makes this one of the closest places in our service area; we also come for a single bathroom, and the call-out charge is among the lowest we charge. For business work on the office park we can work on call without travel time affecting the budget.
What we do in Bunnik
- Bathroom, sanitary & kitchenSealing of sanitary ware, showers, baths, washbasins and kitchens.
- Window frames & glazingNeat, durable sealant work around window frames and glass.
- Facades & structural jointsFacade joints, connection joints and expansion joints in floors and walls.
- Swimming pool & wellnessSealant work in swimming pools, saunas, steam rooms and spas.
- Renovation & maintenanceSealant work during renovation, repairs and periodic maintenance.
- Specialist sealant workFor specific requirements and specialist applications.
You will hear from us within 15 minutes on working days, and the work comes with a 2-year guarantee.
The work here
What we do most often in Bunnik
Joints on changing ground
Where the ground changes within a short distance, the movement a facade makes differs too. At the site survey we measure what is to be expected and derive the joint width from that; a wider joint stretches over more millimetres than a tight one. What sealant does not do is hold back a structure: it follows it.
More about this serviceWindow frames in the post-war neighbourhoods
The terraced houses here often still have their original connection joint between window frame and brickwork. It has hardened, shrunk and come away on one flank, so that water gets behind the window frame and cannot get out again. Because it may date from before 1994, testing comes before cutting.
More about this serviceGlazed facades on the office park
The glazed facades of offices have large areas of glass in profiles that expand strongly in the sun, so the sealing around them makes a considerable movement every day and wears faster than a facade joint. There we choose on the basis of elasticity and adhesion to the profile material, and we schedule outside office hours if the building is in use.
More about this serviceHow we approach it here
Which sealant on what, and what it costs
The substrate decides the sealant
In the residential neighbourhoods the flanks are usually painted timber and post-war brickwork. On painted timber the sealant adheres to the paint layer and not to the timber underneath; if that layer comes loose, the joint comes off with it, so we work back to sound material. Post-war brickwork is generally hard enough to do without primer, provided the cut face is clean and free of dust. Along the ribbon you come across older, more porous brickwork that does need pre-treatment, because otherwise it draws the binder out of the sealant. On the office park the flanks are smooth: coated profiles and facade cladding, where chemical adhesion and elasticity are both decisive. What preparation is needed becomes clear when the old joint is removed.
Costs and lead time
The price follows from metres, accessibility and the removal of the old joint, and with forty-year-old sealant that last part is the largest share of the work. For buildings dating from before 1994, asbestos testing comes before the quote for the work itself; that testing is quick and cheap. In the post-war neighbourhoods the price per house drops as soon as several neighbours join in, because the fixed part is then paid once. For a bathroom we usually allow half a day. The curing time is separate from the working time and you get it with the schedule, so that you know when the room can be used again.
Two routes
Business or homeowner in Bunnik
On the office park it is about glazed facades, cladding and long expansion joints: work that can be estimated per metre and that we carry out outside office hours if the building is in use. In the residential neighbourhoods we work for property managers and contractors on complexes of identical houses, where one site survey per type is enough and the asbestos question belongs in the preparation rather than halfway through the job. Handover per address or per facade, recorded in images.
For businesses
Contractors, painters, homeowners' associations, property managers and interior fit-out.
See what we do for businessesAlso near Bunnik
As the crow flies from the centre. By road it is further.
- Odijk 3 km
- Utrecht 7 km
- Houten 6 km
- Zeist 6 km
- Driebergen-Rijsenburg 6 km
Is your town or city not listed? See the whole service area.
Questions from Bunnik
What people in Bunnik ask most often
My neighbour got a wider joint than I did. Is that right?
It may well be right, because the ground here changes over a short distance. Bunnik lies on and along the stream ridge of the Kromme Rijn: on the ridge itself there is sandier material on which a building moves little, in the lower parts alongside there is more clayey ground that settles more. A facade that moves more needs a wider joint, otherwise it cracks open. We measure that per address instead of applying one size for the village.
Do you also work on office buildings here?
Yes, and usually outside office hours. Glazed facades have large areas of glass in profiles that expand strongly in the sun, so the sealing around them makes a large movement every day and wears faster than an ordinary facade joint. There we choose on the basis of elasticity and adhesion to the profile. The work itself goes quickly per metre; the scheduling takes the most coordination, and we sort that out in advance with the property manager or the occupant.
Is asbestos testing really necessary for a house from 1970?
Yes, until testing shows otherwise. Until 1994 asbestos was used in certain types of sealant, especially around glazing and in facade sealing. You cannot tell by looking at it, so the only way to know is to have a sample tested. That costs little and does not take long. We cut nothing out until it is established: not out of caution but because that is how it should be done, and because removing it wrongly spreads the problem instead of solving it.
Can you combine it with Odijk or Houten?
Gladly. Bunnik, Odijk and Houten lie close to each other and to our base, so several addresses in one day is easy to schedule. You then pay the fixed part of the price once instead of per address, and that makes a noticeable difference. That applies just as much to two neighbours in the same street as to family in the next village. Mention it when you make your request, and we put it straight into the schedule that way.
What happens if I put it off for another few years?
That depends on where the joint is. With a sanitary joint, putting it off is mainly a matter of appearance and hygiene. With a facade joint that has come away on one side, water runs behind the window frame and cannot get out again, and then in time you are talking about wood rot instead of sealant work. That is a considerably more expensive repair. At the site survey we tell you honestly what can wait and what cannot.
