Care and Maintenance of Doors Guidelines:

The following guarantees are affected by our Care and Maintenance of Doors Guidelines for all doors that Trading Doors Ltd supplies.

Typical Guarantees (unless stated otherwise): Engineered doors and door sets for 1 or 10 years; bespoke hardwood wooden doors and door frames for 1 year; bespoke internal fire doors and door sets for 1 year; steel doors and door sets for 10 years.

These guarantees cover manufacturing faults only. Factory applied finish guarantees vary in accordance with EN927/ 1-7 but are typically 10 years for opaque painted products and 2 years for high build tinted products.

The guarantee is to the original purchaser only and proof of the date of purchase is required. The guarantee is conditional upon following and complying with the instructions and recommendations in our warranties, installation, care and maintenance instructions. This guarantee covers replacement of faulty parts only and does not cover incidental expenses. For individual Warranties please visit our Guarantees page.

General Care Instructions and Guidelines:

STORAGE:

  • Doors should only be delivered to site immediately prior to fixing,
  • Timber will react to major fluctuations in temperature and moisture. Precautions must be taken to prevent this,
  • The storage area should be well ventilated and not recently plastered, in fact all wet trades must have ceased and the property must have been dry for at least three weeks prior to delivery,
  • Doors should not be stored against external walls,
  • Moisture content of timber doors should be kept even during storage and installation,
  • Extra care should be taken in centrally heated and air-conditioned buildings;

HANDLING AND STACKING:

  • Store doors perfectly flat on level supports the full width of the door,
  • One support must be laid across the centre and two others 300mm from each end,
  • Bottom supports should be covered with cardboard and/or padding to prevent marking to the door;

INSTALLATION:

  • If trimming doors, equal amounts of material should always be removed from each edge,
  • Avoid the fitting of locks and latches at rail joints,
  • For double glazed units or leaded lights, Low Modulus Neutral curing (LMN) silicone must be used;

PROTECTION:

  • Doors which are supplied in their raw (unpainted) state must be sealed, knotted, primed or lacquered immediately after delivery. This sealing must be applied to all six surfaces – front/back face and all four edges. For painted doors, this is achieved by the application of 2 undercoat layers followed by 3 to 4 gloss coats. Stained doors should have 2 preservative/base coats followed by 3 to 4 top coats. Many finishes carry a 5 or 10 year guarantee,
  • Doors which are supplied primed must be further treated as detailed below. The primer is applied for transit purposes only and is not a waterproof coat,
  • It is imperative that further coats of high quality finish be applied to manufacturer’s guidelines before the door is exposed to the elements. This is particularly important in respect of the tops and bottoms of the door stiles where the grain is exposed. Failure to do this will lead to moisture ingress and swelling/warping and void any warranties or guarantees,
  • This also applies to edges of doors and other surfaces which have been cut and must be sealed, particularly when exposing the end grain, as well as to apertures caused when letting in hinges, locks, letterplates, etc.,
  • The door must be coated equally on all faces to allow a balanced movement of any moisture in the same product type. Different products must not be applied to the different faces of the doors, and if this is carried out all warranties and guarantees will be void,
  • We do not recommend polyurethane varnishes for external doors or the use of water-based finishes on internal or external doors.

Wood is a natural product and minor swelling or shrinking is not a defect but a normal characteristic of the material. This may occur due to variations in climatic and atmospheric conditions such as temperature and humidity. Adherence to the above points will help minimise these effects and ensure years of pleasure from your new door.

Care and Maintenance of External Doors and Frames:

  • External wooden doors and frames must be provided with an adequate overhang or canopy and an appropriate finish colour. An adequate overhang depends on the typical weather conditions of the area where the door is to be used, but at the very minimum means an overhang projecting a distance from the structure equal to one half the distance between the bottom of the door and the bottom of the overhang at the point which is farthest from the door. This generally is a depth of overhang in excess of 1.2m from the flat surface of the door. An appropriate colour is pale / light in shade and tint only,
  • Doors must not be excessively trimmed: excessive is more than ¼” (6mm) from the sides, top and bottom or in the case of a bespoke door more than ¾” (18mm) from the bottom,
  • Maintenance must be carried out and be performed via normal homeowner’s maintenance, including maintaining the finish as appropriate. This will involve inspecting the door(s) on a regular basis and taking action as appropriate,
  • Doors and frames must be installed correctly by qualified and experienced carpentry professionals. Product failure due to improper installation is not covered by our warranties and guarantees,
  • If on receipt of the door(s) there is any damage or if after a period of time, after installation, damage appears on the door(s), any attempt to repair the product without our prior authorisation will void any warranties and guarantees. Please follow our Delivery and Returns policies if upon receipt of the door(s) there is any visible damage through the packaging or on the door(s) or frames,
  • Panel shrinkage and misalignment, which leaves an unstained / unpainted line around the edges of the panel(s), which is caused by differences in temperature and humidity, is not a defect and can be eradicated through proper preparation and the application of varnish or paint to the affected areas,
  • Slight expansion and contraction of the door is generally due to changes in temperature and humidity and is also not a defect, as timber is a naturally expanding and contracting material. In this case the door should be monitored and any heat sources near the door turned down to minimum temperatures or further maintenance should be carried out either through easing the door or by appropriately applying more paint or varnish,
  • Wood sills should be appropriately fixed to any external door and finished correctly prior to fitting,
  • Doors not sealed on all six surfaces or inside hinge, lock or letterbox cut outs with an appropriate finish, which for external doors and frames is absolutely necessary, will void any warranties and guarantees. We recommend a minimum of four coats, although preferably five coats should be applied. We only recommend Sikkens Rubbol paints and Sikkens Cetol microporous wood stains and our guarantee will only cover an external door or frame finished in this product.

Care and Maintenance of Internal Doors and Frames:

  • Internal wooden doors must not be excessively trimmed: excessive is more than ¼” (6mm) from the top or sides and bottom of the door. Some doors can be trimmed more than this on the height particularly, however any warranties and guarantees will be void if these limits are exceeded. In the case of fire doors, if these limits are exceeded the door will not have a valid fire certificate. If you are unsure about what can, or cannot be trimmed off of a door, please call us on 020 3743 7324 or email us on our email form,
  • Maintenance must be carried out and be performed via normal homeowner’s maintenance, including maintaining the finish as appropriate. This will involve inspecting the door(s) on a regular basis and taking action as appropriate,
  • Doors and frames must be installed correctly by qualified and experienced carpentry professionals. Product failure due to improper installation is not covered by our warranties and guarantees,
  • If on receipt of the door(s) there is any damage or if after a period of time, after installation, damage appears on the door(s), any attempt to repair the product without our prior authorisation will void any warranties and guarantees. Please follow our Delivery and Returns policies if upon receipt of the door(s) there is any visible damage through the packaging or on the door(s) or frames,
  • Panel shrinkage and misalignment, which leaves an unstained / unpainted line around the edges of the panel(s), which is caused by differences in temperature and humidity, is not a defect and can be eradicated through proper preparation and the application of varnish or paint to the affected areas, and through the reduction of any nearby heat sources such as radiators,
  • Slight expansion and contraction of the door is generally due to changes in temperature and humidity and is also not a defect, as timber is a naturally expanding and contracting material. In this case the door should be monitored and any heat sources near the door turned down to minimum temperatures or further maintenance should be carried out either through easing the door or by appropriately applying more paint or varnish,
  • Unfinished doors not sealed on all six surfaces or inside hinge or latch / lock cut outs with an appropriate finish, will void any warranties and guarantees. For internal doors we recommend a minimum of three coats of solvent based paint and two coats of either solvent based wood stain / varnish or three coats of OSMO Oil and suitable waxes, as appropriate.

Care and Maintenance of Steel Security Doors and Frames:

  • Steel doors and frames must be installed correctly by qualified and experienced professionals. Product failure due to improper installation is not covered by our warranties and guarantees,
  • If on receipt of the door(s) there is any damage or if after a period of time, after installation, damage appears on the door(s), any attempt to repair the product without our prior authorisation will void any warranties and guarantees. Please follow our Delivery and Returns policies if upon receipt of the door(s) there is any visible damage through the packaging or on the door(s) or frames,
  • Panel shrinkage and misalignment, which leaves an unstained / unpainted line around the edges of the panel(s), which is caused by differences in temperature and humidity, is not a defect and can be eradicated through proper preparation and the application of varnish or paint to the affected areas,
  • Slight expansion and contraction of the door surface timber / panel is generally due to changes in temperature and humidity and is also not a defect, as timber is a naturally expanding and contracting material. In this case the door should be monitored and any heat sources near the door turned down to minimum temperatures or further maintenance should be carried out.

Care and Maintenance additional information:

All unfinished doors must be finished immediately upon receipt as appropriate and before installation. We will not extend our warranty to any door that has been installed before it has been finished appropriately.

The Warranty is to the original purchaser only and proof of the date of purchase is required. The warranty is conditional upon following and complying with the instructions and recommendations in our installation, care and maintenance instructions. This warranty covers replacement of faulty parts only and does not cover incidental expenses. For individual Warranties please visit our Guarantees page.