Obtaining the best service and appearance from your product

General Cleansing of PVCu and Glass
These products are best cleaned by regular washing with warm water. A small amount of washing up liquid can be added as necessary to help remove more stubborn dirt and greasy marks. Internal surfaces of white PVCu may suffer discolouration if exposed to continuous cigarette smoke or cooking fumes. In such circumstances you should consult with your installer. Under no circumstances should you employ any chemical cleaning agents or abrasive substances to restore the original colour as it may harm either the product or glazing gaskets.

Residential Doors
After washing as instructed, ensure that all accumulated dirt and deposits are flushed out from the various drainage slots situated in the cill of the outer frame. Spare keys for standard locks will be obtainable from your local locksmith or iron-monger in the normal way. For enhanced Mul-T-Lock mechanisms, spare keys can only be obtained from specialist suppliers and will require the accompanying plastic key card. Paragon Windows can advise of such local specialists upon request.

Lubrication of the lock should be achieved with a graphite-based lubricant designed for the purpose. This is particularly important where the lock mechanism is exposed to attack from either salt or other chemicals in the local atmosphere.

Hinges should also be inspected and lubricated from time to time. Make sure to wipe off excess lubricant in all instances.

Patio Doors
Ensure if possible that your patio door is not slammed shut with the locking lever in the ‘up’ or locked position, as this may damage the lock, lock keep or the jamb itself. Such abuse may eventually warrant either lock repair or adjustment. Similarly endeavour not to slam the door open as this may result in subsequent damage to the door-stop.
Particular care should be taken to regularly inspect the door track and to remove dirt, stones or other debris. This area should thereafter be cleaned with warm water and a soft brush. Locks, locking points and levers should all be regularly treated with a graphite-based lubricant.

Casement Window
Should the operation of the opening vents appear ‘slack’ the situation can be remedied by simply adjusting the pressure of the friction stays. To achieve this, arrange the vent in the fully open position and locate the small brass screws housed in the side of the stays fixed to the main window frame. Be careful not to over-tighten the screws and a maximum of one quarter turn should be sufficient on each occasion. Important - both stays should be adjusted to the same extent in order to maintain the equalised tension.

Whilst the surface of the stays may be lightly sprayed with silicone for protection in saline atmosphere, a light machine oil can be applied to the pivotal points, one drop per pivot.
Where espagnolette & shoot-bolt locking is fitted, the system should be regularly and lightly lubricated, especially if exposed to salty air or damp conditions such as a bathroom or kitchen area.

Locking Handles
Under no circumstances should the handle be forced into the open position without the key release. For the benefit and convenience of the home owner, it is strongly recommended that if the key is removed from the handle, it is located within easy reach in order to facilitate any need for emergency opening.

General Notes on Ventilation & Condensation
Once your property has been converted to double glazed products, draughts should be a thing of the past. It will, however be necessary for you to decide how you will allow ventilation to enter your property, albeit on a controlled basis. This is particularly important if you employ either gas or paraffin heaters on the premises, where there could be a build up of noxious fumes. Be sure to mention this to your Installer and he will advise the best method of alleviating any problems in this respect as well as limiting resultant condensation.

Unfortunately, condensation is a fact of life. Wherever there is moisture present in the atmosphere, and substantially differing temperatures on either side of any surface, degrees of condensation will occur. The effect is directly proportional not only to the temperature variation, but also to the amount of water vapour present. When you consider that the average adult will exhale around one pint of water during the night, and that windows invariably offer the coldest surface within a room (certainly if facing the worst of the weather), it is not surprising that bedrooms in particular, but also kitchens, lounges and bathrooms are most likely to suffer from this problem especially if not well ventilated.

Making contact with Paragon Windows

If you would like any more information about our products, you can call us on 01993 868791, email us at or use the form opposite. We also have a Facebook page!

If you request a quote, it's hassle-free: we will make an appointment to measure up and answer any queries, and then we email or post a fully detailed, itemised quotation within a few days.


Customer feedback from the Trading Standards Approved Buy With Confidence scheme


Very professional. Recommended by a neighbour and we've used them twice now. Excellent service.


Excellent service all round. Neat, efficient and good quality. Thank you!


Highly professional & confidence inspiring.


First class service. Friendly and competent. Very pleased with with windows.


First class service from Mike and his team. Absolutely delighted with our new windows and doors. They were quick, efficient, friendly and could not do enough for us together with being very reasonably priced. We would highly recommend them, in fact we did to my father-in-law!


We had a couple of quotes for the work but thought we would go with the smaller set up for a more personal service. A neat job, no initial deposit. No price differential between 2 quotes.


At Paragon Windows, our team of friendly windows and doors experts are committed to delivering every job on time and on budget. We rely on our customer’s feedback to build our reputation and are proud to serve our community in Oxfordshire. We hold a range of independent industry accreditations and are members of several professional bodies, customer feedback and quality assessment schemes, including Buy with Confidence, the Royal Institute of Chartered Surveyors, and FENSA.

Buy with Confidence

Trading Standards Approved directory of vetted traders with customer feedback. Learn more...

Royal Institution of Chartered Surveyors

Qualified fenestration surveyor for over 20 years. Learn more...


FENSA Membership allows us to register installations with Building Control without having to arrange inspections - FENSA carry out their own random assessments. Learn more...

Glass and Glazing Federation

We are members of the Glass and Glazing Federation. Learn more...

Privacy notice: We never send unsolicited marketing communications. Customer details are retained for a maximum of 10 years for the purposes of administering warranties, and only shared with: FENSA, for the purposes of registering installations with Building Control; our insured warranty provider, for the supply of any purchased policy.
Paragon Windows, Bay 6, Crawley Mill Industrial Estate, Crawley, Witney, OX29 9TJ
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