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We also supply & fit:
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Frequently Asked Questions

Do you offer any after installation care?

Yes as in line with our guarantee. Please call 0800 521 471

What should I do if dark mould spots have already appeared?

If you find dark mould spots forming, treat the affected areas immediately with a solution of household bleach or Miton fluid. This will kill the mould spores and prevent them from spreading to other areas. All new houses with improved insulation and replacement windows are likely to trap moisture build-up. This can be identified and dealt with, as long as all the rooms are heated throughout the house, and the air is changed on a regular basis.

How do I reduce condensation ?

Codensation can be controlled by providing natural ventilation to change air on a regular basis and by maintaining an even temperature. This is achieved through ventilating units which are controlled by humidistats, an airbrick, or by opening a window. Please remember that the airbrick must be open to achieve good results. An effective way of controlling condensation would be to install a dehumidifier. This cost could be avoided if the problem is one of ventilation, by installing an airbrick thereby creating ventilation or controling those causes of moisture in the air.

How can double glazing help?

Sealed unit replacement windows act as an insulator which will reduce heat loss which under normal circumstances, would be conducted from the inside of the room to the outside. Please remember that sealed units act as an insulator and are not a source of heat, therefore all rooms should be adequately heated - especially conservatories. The likelihood of condensation forming on a warm surface is therefore reduced.

How do I know if I have condensation?

Condensation will take many forms, the most common being steaming windows and puddles of water on the window sills. In extreme cases, dark spots of mould will appear around the windows, wall coverings and mastic seals throughout the house.

If you have a non-condensing tumble dryer, make sure it is properly vented to the outside of your home. Remember, tumble dryers can create 16 pints of water vapour during one cycle.

I did not have condensation before my new windows were installed. Is there something wrong with them?

This is a common assumption but, unfortunatley, it is also incorrect. Windows cannot and will not produce any water. This 'water' is produced by our normal living activities. Therefore we, the householder have created the problem.

Where can condensation occur ?

Due to thermal currents within a house, condensation can occur in a number of places, usually at cold spots i.e An unheated room or conservatory without any form of adequate heating.

Condensation forming on the room side surface of a sealed unit indicates a high water vapour content present and that the temperature of the room side glass surface is inadequate.

Codensation within the airspace of the sealed unit indicates the unit has broken down.

What is condensation ?

Condensation is a relatively new phenomenon resulting mainly from changes in lifestyle and our desire to keep heating costs as low as possible.

Condensation is related to the way we heat, ventilate and insulate our homes. In days gone by, most homes had one or two chimneys; allowing up to four air changes per hour. Doors and windows were generally less well fitting than they are today. This natural ventilation was the very process which prevented condensation.

To cope with increased fuel costs came the trend to insulate. This resulted in loft insulation, cavity wall insulation and double glazing.

However, it is also a fact that energy-efficient homes are more likely to suffer from condensation - because anything that keeps warm air in will also keep fresh air out, creating the ideal conditionsfor condensation to form.

Before we tackle the problem, we have to understand exactly what condensation is, then find the best way to deal with it.

Condensation is merely the air's natural moisture content setting on cool surfaces. The amount of moisture in the air is called relative humidity. If the humidity level rises about 70%, mould and mildrew will be encouraged to grow.

Astonishingly, the average family creates up to 20 pints of moisture every day, simply by washing, cooking and breathing. This moisture must go somewhere and be dealt with to avoid condensation.

Are you FENSA registered ?

We are registered with CERTASS which is EXACTLY the same as FENSA.

What is Certass ?

Since April 2002 it has been a legal requirement that all domestic replacement window and/or door installations are registered with Local Authority Building Control (LABC).

Installers either had to register their installations with LABC or they could self certify these installations with the only self-certification scheme available to them at that time (FENSA).

In April 2006 the Government recognised the need that the industry required more than one scheme and two other organisations were granted licences, one of which was CERTASS.

CERTASS stands for Certification and Assessment and as already stated above is one of the Government's licensed Competent Person Schemes.

On behalf of scheme members, CERTASS will:
* Register the installation electonically with the relevant Local Authority Building Control Office.
* Issue a Building Regulations Compliance Certificate to you. You will need this certificate should you decide to move house.

CERTASS are Authorised & Regulated by the CLG

Can I contact CERTASS ?

Yes, you can visit their website or alternatively call 08450 948 025

Is your guarantee covered by an Insurance Policy ?

Yes. The policy is provided by The Plastic Window Federation.

How do I care for my windows, doors and conservatories ?

Cleaning PVC-u frames:
Never use anything abrasive, this will scratch the surface which will trap the dirt. Wash the frames with a mild solution of washing-up liquid. If any stubborn marks remain, lightly rub with Ciff creme cleaner. DO NOT use Ciff on every occasion, as this will remove the shine from the PVC-u.

After a heavy shower of rain, you may find some water laying in the bottom of your door and window frames. This is nothing to worry about as this will drain away through the drainage holes in the base.

Lead work:
As with any new lead work, when exposed to rain it will start an oxidation process which shows as white or mottled staining on the lead work. When this process is complete, the lead work will be dark grey in colour and will no longer stain. This process will take a few months to complete.

Twice a year, spray WD40 into all the locks and on to any metal to metal contact surfaces around your doors and windows. This will help to keep them operating smoothly.

Building work - conservatory bases etc:
As with any new building work, a period of 'drying out' is necessary. Please ensure maximum air circulatin and ventilation during this time to assist the process. To test if a floor is 'dry' lay a square of carpet on the floor overnight. If the floor is dry when the the carpet is lifted, the process is complete. Never be tempted to use electric or gas fires to speed-up the 'drying out', as this is dangerous.

To ensure a draught free door, please remember to keep the door in the locked postition. This will achieve a tight fit on to the draught seals.


Mr & Mrs Heywood – Wellfield Street, Warrington

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