Millwrights are expert machinists specializing in addressing the machine maintenance, repair or replacement needs of factories and production plants. The Millwright services in Tennessee for instance are served by firms which are actually established machinists. They might do the specialty so that they have good traction on business.
In fact most machinist shops will have this kind of service on offer for anyone. They might have their own mobile units who can go to any location and diagnose the equipment or take one or two out for servicing in their shops. The check up process is part of their work, usually because they have to assess damage and repair needs.
The costing of course is already a thin that may be agreed on. Usually they will charge flat fees for the visit, which may be minimal in nature. The pricing for the further services they may do will depend on what actual damages have to be addressed, whether for instance these are a set of minor things or so major as to need reworking and replacement.
Of course broken machines will tell you when they are broken simply be not moving or not doing the work they are supposed to do. In both instances, the damages might be extensive, so extensive in fact that the usual run of physical plant utility guys and repairmen will not be able to manage them. This is when services providers here are called up.
Most plants or factories will have contact numbers for their regular service firms. These are usually located conveniently in relation to the locations of the plants. These must specifically be able to provide services for certain machinery or production processes, and they may actually be expert in many things.
The related services are all part of the mechanical or engine processes of machinery. Replacement will involve the acquisition of new items at cost if the firms do not stock up on certain parts. They will stock things that are easy to store and are affordable enough, but for the most expensive and vital stuff they might have dealers at the ready.
These are the ones who have the most important equipment stocked or on display. They work with millwrights because these are among their regular customers, and can order up anything on consignment or immediate need. Sometimes the need may be so urgent that they have hotlines to serve their clients.
In any case most of the millwrights will work in the daylight or business hours. When they need to they might do an overnight job, but this is rare enough, since machinery can be stopped for the night. In fact, night work is not advisable because the ambient lighting in factories and the hours for sleep can cause accidents.
Another important thing to remember is that no damage is too large, complex or hard to do. The machinist shops can take care of creating new things, especially when there are no OEM or ready made products available. Some machines may have specially made parts, which means replacements have to be created for them.