In our compendium, you will find step-by-step instructions to help you through the process of claiming your house.
Do you have questions about the foundation of your house before the claiming process? Go to the section:
The house should be leveled as soon as possible after unloading. It is not recommended to stay inside before leveling. You may only enter the house immediately after unloading to inspect the equipment. The house should be supported at the points marked on the chassis beam. Adjustable supports are recommended for this purpose.
Tools required for leveling:
Important: For large level differences, at least two jacks are required, as the house must be lifted in two places. If the house is placed directly on properly constructed foundation pads, leveling is not necessary.
Leveling process:
Any structural deformations caused during transport should return to normal after proper leveling.
The house is equipped with brackets for securing it against movement. The attachment points are located approximately 1 m from each corner on the underside of the longer side of the house.
There are two types of anchors: screw-in anchors and permanently attached anchors. To stabilize the house, screw in the supplied brackets onto the bolts.
The brackets should be tightened firmly to prevent any play between them and the frame. Then, attach steel cable tie-downs to the anchor points to prevent shifting. The cable should be secured to the ground in a way that allows it to withstand a load of about 1 ton.
Important: After 2 months from installation, check the house level again and correct any differences if needed. The level should be checked before each seasonal use, and at least once a year.
Letniskowo mobile homes are characterized by durability and strength. This is ensured by the use of S235JR steel — a material widely used in engineering and construction, capable of withstanding both dynamic and static loads. Thanks to the use of a steel frame, Letniskowo mobile homes can endure various conditions, including those related to mobility and relocation.
However, during unloading with a tractor, accidental structural damage may occur. Damage can also happen when moving the home over uneven or unsuitable terrain, applying excessive force to the frame.
Utility connections should always be carried out by qualified professionals (e.g., a licensed plumber or electrician). Work involving water, electrical, and sewage systems requires precise knowledge and experience to avoid mistakes that could lead to malfunctions, equipment damage, or even pose a risk to the occupants’ safety.
Incorrect electrical connections can result in short circuits or fire hazards, while leaks in the plumbing system may cause flooding and structural damage to the home. Certified specialists will ensure that all work is performed in accordance with applicable standards, which is also important for future technical inspections and warranty claims. Each completed connection must be recorded in the *Mobile Home Service Card* — lack of such an entry will result in warranty claims being rejected for that scope of work.
Important: After the winter season or any long period of non-use, it is advisable to have all installations inspected to detect any leaks or damage. Regular maintenance of water, electrical, and sewage systems increases both safety and comfort when using the mobile home.
The electrical wiring should be connected and periodically controlled and tested by a specialized electrician. Before connecting the mobile home, check the voltage and frequency in the network. The voltage should be 230/400 V 50 Hz. Only cables with a separate protective conductor (PE) may be used to connect the system to the network. If there is no protective conductor in the network, earthing shall be performed. The recommended value of the earthing resistance should be less than 10 Ω.
The electrical connection in the form of a cable is located under the cottage. The wires shall be connected appropriately and in accordance with the best practices, and protected against unauthorized access and animals.
Important: Every 30 days, an operation test of the current differential protection should be performed. To do this, press the TEST button on the protection, if the mechanism is operational, then there will be voltage loss in all circuits, in case the mechanism does not work, turn off the protection by a circuit breaker and call the authorized electrician. Possible future repairs of the electrical installation can only be done by a specialist.
To connect the mobile house to the sewage network, use a 110 mm diameter PVC pipe placed under the house. Do not use bathrooms before connecting the installation to the sewage network/septic tank.
A very important element of the correct operation of a mobile home is the verification of heating / air conditioning systems. To start with, read the user manual for heating devices.
a) Heaters
Normally, in the mobile home there are electric oil heaters with a thermostat. Start using the heater by connecting it to the electrical outlet. Then the electric heater will start to heat up, transferring heat to the oil inside the heater. The thermostat enables precise temperature control in the room, ensuring thermal comfort. When the room temperature drops below the set value, the thermostat turns on the electric heater, which causes the oil to reheat and raise the temperature. When the temperature reaches a set value, the thermostat turns off the heater to prevent the room from overheating. In the bathroom of the mobile house there is a heater filled with propylene glycol. Due to the frequent use of the bathroom heater, periodically check the liquid level, if necessary make up the liquid to ½ height of the upper rib. The checking and refilling is done by a plug located in the top of the heater. The power of the device is strictly calculated and in case of failure must be replaced with a device of the same power. After disconnecting the heaters, check that the devices reach the set temperatures.
b) Underfloor heating
In underfloor electric heating, special heating mats are used, powered by electricity. During its flow, heat is generated, which is then sent to the room. These systems allow for precise control of the heating parameters, which makes it easier to maintain the optimal temperature of the interiors and to take care of the costs associated with the operation of the system. The floor heating elements are activated by means of a temperature controller according to the user’s settings. The option „setting the floor temperature limit” must be used. It should be remembered that according to the manufacturer’s recommendations, the maximum surface temperature of laminated floors should not exceed 27 °C. During the use of the mobile cottage, underfloor heating should be treated as a permanent process, where the regulator operates cyclically within the specified temperature range, and not as a temporary process, i.e. heating to high temperature and completely switching off the heating. A very important feature of floor heating regulators is their limited „memory”, i.e. if we deprive the house completely of electricity (e.g. in winter – more than a month), it will be necessary to reprogram the temperature regulator
c) Air conditioning
If there is air conditioning in the mobile cottage, check that it works properly.
Turn on the air conditioning, place your hand before the air exits and check if you feel a constant gust. If the air conditioning works properly, it should generate a strong and even stream of cold air. If the air is weak or uneven, this may indicate problems with the device. Air conditioning should operate quietly and smoothly.
Moisture is one of the biggest enemies of a mobile home, which can lead to mold formation, structural damage and deterioration of air quality.
Appropriate maintenance will protect the installations, interior and facade, so you will avoid unpleasant surprises in the spring and costly repairs. What should be done?
– Use the inspection openings of the siphons, clean them and empty them from water;
– Empty the flushing cistern of the toilet bowl;
– Empty the toilet bowl, pushing the water out of it;
– Pour non-coagulant liquid (based on propylene glycol) over all siphons and toilet bowl.
Preparing the system in this way will prevent the ingress of gases from the grid or septic tank to the rooms and prevent damage (bursting) of equipment elements by frost acting on the water. Propylene glycol is not toxic and is safe for the installation and the environment, but it should be handled according to the manufacturer’s recommendations. Another way to avoid unpleasant odor is to completely disconnect the sewage system from the network or septic tank, but this does not release from the above activities while leaving the system for the winter period.
See the documentation that comes with the object. This will help you better understand both the construction and functioning of your new home. In the drawer marked with a special sticker you will find, among others:
Verify that the documentation provided is complete.
If it turns out that the delivered mobile home has defects or damage or is different from the order, you should submit a complaint via the form available at: www.serwis.letniskowo.pl or directly at the company’s headquarters. The form should accurately describe any noticed deficiencies, damages or other non-conformities with the order and attach photos or videos so that the problem can be solved quickly and effectively. If the data provided in the complaint form or information needs to be supplemented, the Letniskowo company will ask the complainant to supplement the data.
In the event that the technician determines:
The service may not be completed.
The warranty for the mobile home is 24 months from the date of purchase. Letniskowo is responsible for the free replacement of all parts with factory defects. The warranty applies to defective parts/components, as well as assembly except for parts/components that deteriorate due to wear, such as glass, glazing, tires and other built-in equipment to which the individual manufacturer’s warranty refers. The warranty applies only to the mobile home, which has undergone adequate annual maintenance, otherwise the warranty ceases to be valid, because it was not possible to detect errors or defects in a timely manner, and these defects were the subject of complaints.
Important: Keep all documentation related to your mobile home. These documents may be needed in the event of further warranty or service claims.

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