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Windows & Doors: A Helpful Maintenance Guide

You’ve invested in one of our high-quality glazing products. So of course you want your new installation to last as long as possible. Our high-performance range is generally very low maintenance.  However, the Andy Glass Windows Team have put together a quick guide to outline best practice guidelines to lengthen its lifespan and keep it looking as good as new.

Double / Triple Glazing

To achieve a streak-free shine all you need is:

  • A bowl
  • Distilled water
  • White vinegar
  • A microfibre cloth
  • Newspaper
  • Some cotton buds or an old toothbrush

Simply combine one-part white vinegar to four parts water. Wipe the windows with the microfibre cloth in a circular motion, whilst continually topping up your cloth with the cleaning mixture to remove as much dirt as possible. Remove grime from the hard to reach cavities with the cotton buds or toothbrush. Now use the newspaper to buff the glass for a crystal-clear finish.


We advise cleaning your windows on a cloudy day, as direct sunlight can make them dry too quickly; causing streaks.

Do not use the following to clean your windows as they can damage the seals and cause premature wearing;

  • Bleach
  • White spirits
  • Methylated spirits
  • WD40
  • Scouring pads
  • Too much pressure

uPVC Windows (including Casement Windows, Sash Windows, Tilt & Turn Windows and Timber Effect Windows)

Generally, uPVC window frames only require an occasional wipe down to remove dust, with a warm water solution and a soft cloth. Keep all hinges, locks and fixing screws lubricated with a quality silicon solution, wiping off any surplus and removing dirt and debris as and when required. Furthermore, Andy Glass uPVC sash and tilt & turn window models allow you to clean your windows from inside the building.

Aluminium windows

Aluminium window frames will always be low maintenance if left in their finished condition, but can also have additional protection applied if necessary. New aluminium frames with gloss coating should be washed in a warm water solution with a non-alkaline liquid detergent and non-abrasive cloth or sponge. Coastal properties or homes near motorways/industrial areas should clean their aluminium windows at least every 3 months. Clean internally at least once a year in a smoke free home. Carefully remove grime and any deposits including all ridges, grooves and joints where salt and dirt can collect to prevent potential corrosion. Lastly, rinse frames thoroughly with clean water and dry off using a chamois leather or soft cloth.

Restore older aluminium frames with a renovating cream. Use caution that the cream/polish is recommended for powder coated / polyester aluminium frame finishes. Get in touch for further information on how to replace your ageing aluminium windows with the Andy Glass aluminium range.

Bifold doors

Check regularly to prevent debris build up in the tracks, as this will affect the operation of your bi-folding doors. You can loosen debris from the tracks with a small brush and then vacuum it up. If you live near the coast it’s good practice to wash bifold doors down with fresh water about once a week to remove any salt deposits. Use soapy water and non-abrasive cloths. Lubricate hinges, wheels, multi point locks and handles with silicone spray or grease every few months for optimum performance.

Composite doors

Composite entrance door with glazed panels

As composite doors are so resilient, cleaning will only take a few minutes each time – although coastal properties should be cleaned more frequently. Clean the door frame, panelling and door hardware (handles, etc) with a soft sponge and a warm soapy water solution – drying the surface with a soft lint-free cloth. After cleaning and drying you can use white spirit to give your composite door an added sheen and deeper looking colour if you like. External glass can be cleaned with traditional glass cleaner (as mentioned above). Avoid using harsh chemicals or solvents (as listed above) as these have the potential to damage the door skin. Lubricate locks, hinges, etc with silicon spray once or twice a year to keep it working as smoothly as when you originally bought it.

French doors

Flush out accumulated dirt and deposits from various drainage slots in the outer frame sills. Lubricate locks with silicone spray designed for purpose, especially in locations that have salt or other chemicals in the atmosphere. Inspect hinges and lubricate from time to time, wiping off any surplus.

Patio Doors

Extend the life of the lock cylinder and mechanism by regular lubrication with silicon spray. Do not oil the key channel or cylinder core.

Tiled roof conservatory


Minimise condensation build up and mould growth by ventilating your conservatory regularly; frequently open windows and doors, keep trickle vents open, open roof vent (if applicable) and use appropriate heating in cold weather. Lubricate locks, hinges and handles with lubricant as and when. uPVC or aluminium frame care outlined above.

Glass conservatory / lantern roofs

Do not stand on the roof as you may end up having to replace the entire thing! First loosen the residue with a tool that allows you to clean the roof from the ground, e.g. a water fed pole which allows soap and water to be pumped along the handle or a regular sponge with an extendable handle; budget permitting! You may also need a step ladder to see what you’re doing. Using an outdoor-use soap solution, set up your equipment ensuring good balance is maintained; it might be worth getting someone to support the ladder and pass up necessary tools. Work methodically from one side of the roof to the other, adding a good amount of soap and warm water to loosen residue and stubborn dirt, using additional elbow grease for harder-to-shift stains.

Homeowners should not be tempted to use anything that’s abrasive on the glass. Once satisfied, rinse thoroughly and wipe down being careful to avoid smears; a squeegee attachment is your best bet here to achieve smear free glass.

Solid tiled roofs

Solid conservatory roofs are sturdier and more durable against harsh weather conditions than glass roofing, so there is virtually no maintenance required. Solid tiled roofs are also more likely to prevent condensation occurring as the temperature is easier to maintain.

If you require further advice on how to maintain your new installation, give us a call today on 01235 530 035 or send us an online message. We look forward to helping you save money by prolonging the life of your new (or existing) windows, doors or extension.

Merry Christmas

"Prices were excellent..."

D Keegan, Oxford

After speaking with many traders, we went with Andy Glass Windows because they didn't try to give us the hard sell and because their prices were excellent. When they came to install, the 2 men were really careful, clean and very nice.

Merry Christmas

"Very professional..."

S Moss, Witney

From start to finish Andy Glass Windows were very professional, knowledgeable and there was no pressure selling. The surveyor was very thorough. The installers were prompt, polite, and did a very professional job installing our composite doors.

Merry Christmas

"Result is excellent..."

B Kirk, Cumnor

We were looking for a window product to compliment the renovation of our new home and Andy Glass Windows understood exactly what we were looking for and provided the solution with timber effect flush fitting windows. The process from ordering through to completion was very smooth and the finished result is excellent.