Care & maintenance


We recommend that you regularly inspect your door for any paint breakdown.

Pay special attention to possible paint breakdown. Once the paint system has begun to break down, you should re-finish your door.

Wipe your door down with a damp cloth. Do not use harsh chemicals
or detergents on your door.

Never hose down your door or get your door wet.


A solution of soap and water can be used to remove dirt from knobs, roses and other surfaces, but should not be used on cylinders. Ensure liquid does not enter cylinder at any time. When cleaning, avoid using acidic or abrasive substances which may contain solvents, i.e. cleaning products, as such substances may cause a deterioration of the finish.

Caring for Stainless Steel – Depending on the environment where the product is used, blemishes can appear on stainless steel product. To help prevent this occurring, clean once a month. Blemishes on satin stainless steel may be removed by rubbing with a suitable stainless cleaner/polish. Ensure rubbing occurs in the same direction as to the grain itself.

Lubrication of Locks and Cylinders – Gainsborough products are manufactured using a quality lubricant for smooth operation. If the product has been installed in a region subject to extreme climate or subject to a dusty environment, then such conditions may affect the original lubricant and therefore the product may require re-lubrication.


Entrance doors must be installed in weather protected openings to reduce the effects of weather exposure. The Corinthian warranty will not cover doors that are fully exposed to the weather.

You should avoid getting doors wet, even after finishing. The protection of your door is a major factor in its ongoing maintenance requirements and longevity.

Only doors specifically designed as external doors should be used in external applications. Using the incorrect door type can compromise the security, durability and performance of your door when exposed to sun, rain, wind, heat and cold.

Even with an external door, most applications will require some sort of overhead protection to minimise performance problems such as rapid finish deterioration, colour fading, wood splitting, warping, panel shrinkage, wood joint separation, and water penetration between panels, frame and glass.