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Causes of condensation on bifolding doors & windows

What are the causes of condensation on bifolding doors and windows? In the Autumnal months, we see many different fluctuations in external temperature. There is a mixture of warm days and colder nights. A result of this is that you may be surprised to see condensation on the outside of your double glazed units.

Causes of condensation on bifolding doors

What causes condensation on bifolding doors?

If you see condensation on the outside of your double glazed unit, it is logical to assume that either your doors are at fault, or there is a problem with your glass.

Condensation is often evident in September and October, but there is no great cause for concern. We offer some information and advice about condensation and what you can do about it.

No new windows or doors eliminate condensation.

The sales message of some window companies wanting to sell you new windows and doors is that you will elimiate condensation.  No new window or door cures condensation.  While double glazed doors or windows with insulated frames certainly help reduce it, other factors cause moisture in the home.

Heating, cooking, living and even sleeping affect moisture levels in the home. Do your research and you will see a standard message amongst professional window and door companies, and the glazing industry bodies that condensation can never be eliminated.

Why do you see condensation on your double glazed windows and doors?

Condensation on your new windows and doors can occur even on the most thermally efficient of products. If you can see the formation of condensation on the outside of your glass, this is perfectly normal.

Condensation on the outside of double glazed units just means that your new energy efficient doors and high specification glass are working together. It is keeping the heat in your home and the cold out.

Why is condensation on the outside not the inside of your doors?

You may be confused as to why you are getting condensation on the outside of your windows, but this is merely demonstrating how useful modern glass is.

On older single glazed windows or timeworn double glazing without insulation, the “cold spot” was previously on the inside of the window. The thermal efficiency of polyamide thermal breaks in the aluminium, argon gas, coatings and warm edge spacer bars in the glass has shifted the cold spots to the outside, where they should be.

Simply put, the heat is now being retained in your property, rather than being lost through the glass or the frames. Naturally, this condensation will disappear as soon as the temperature rises outside.

Tips for reducing condensation in your home.

  • Ventilate your home as much as possible.
  • If you have trickle vents in your windows, do keep these open.
  • Avoid sudden temperature increases – it is better to have a consistent temperature in the home.
  • Ensure you regularly clean off any moisture.
  • Use kitchen and bathroom fans where fitted.
  • Avoid drying washing in the home.

What to expect from frameless glass doors by FGC.

Our unique and patented frameless doors feature the latest in thermally insulated aluminium extrusions and very high specification glass with insulated spacer bars, advanced coatings and a top quality construction.

If you do see condensation on your windows or our doors, there is nothing to worry about.

At this time of year, condensation has formed on the outside of your doors. This is largely due to the increased moisture in the air.

Where your bifolding doors or windows are located is also likely to affect whether you get condensation on the outside and how much. North and South facing properties can differ, your location can be a factor as well.

So if you do see condensation on your new windows and doors, these are doing what they have been designed to do. To keep the heat inside your home.

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Great service and very welcoming for my father and I. Adrian in particular was very efficient, gave great pertinent advice and guidance on my future purchase!
Andrew H.
Andrew H.
21:45 17 Jan 22
Excellent in all aspects from initial viewing in showroom to actual installation.
Des P.
Des P.
09:21 22 Dec 21
Excellent service and product from FGC.I have a glass-box conservatory, built with structural glass about 20 years ago. The 2 sliding doors needed replacing, along with 2 side panels, and I contacted dozens of companies selling conservatory doors and none of them were prepared to install their doors because of the perceived risks of working with structural glass.Then I found FGC who, with no fuss at all, carried out a survey, provided a very reasonable quote for the doors/panels and then installed the doors/panels on the agreed date.Communication with the FGC office was always quick and easy. The surveyor and installation team were efficient and courteous. The product works beautifully.We can now use our conservatory again. Thanks FGC.
Tony
Tony
08:03 09 Nov 21
Great company with excellent, friendly and responsive service, the guys were helpful and efficient with the installation and the slide and turn doors are a fantastic product.
Arun S.
Arun S.
16:52 23 Oct 21
Excellent service from start to finish, from sales/admin to site survey to installation. Good communication throughout, very friendly staff and the Frameless Glass Curtains are a serious piece of kit. Quality materials, unique design and look stunning. Thoroughly recommended.
Roger H.
Roger H.
07:56 12 Aug 21
Fantastic service from start to finish, from the surveying, contact with office to the workmen. I have experience through work of a number of companies providing similar products and these guys have been by far the best to deal with
Matt G.
Matt G.
14:12 10 Jun 21
FGC installed a two-panel frameless glass door at our property yesterday. Wow!! the installation is exactly as discussed, and was carried out by two of FGC's team members who were so professional and courteous. They were excellent, and we have no hesitation in recommending FGC and their team to anyone considering such an installation.We are delighted with the installation, and very pleased we chose FGC.Well done FGC!!
David W H.
David W H.
07:31 10 Jun 21
The quality of the windows / doors are second to none.The customer service was first class from placing the order to installation we were kept informed at every step.The installation team led by Richard left our house and patio cleaner than when they arrivedI would recommend FGC 100%Tony- Burnley
Border S.
Border S.
16:19 28 May 21
From start to finish everything was excellent.Fab u lasThank you
Stephen H.
Stephen H.
20:09 27 May 21
BRILLIANT SERVICE FROM START TO FINISHHighly recommended.
Stephen O.
Stephen O.
09:01 21 May 21
We purchased a beautiful Origin sliding door and side window from FGC. FGC installed the sliding door and window on time, however the sliding door did not fit correctly. Issues can happen. FGC made the process of re-surveying and re-installation very simple. FGC is a very pleasant and professional company to deal with. We are very happy with their service and would strongly recommend them.
Nathan P.
Nathan P.
17:45 20 May 21
Fantastic product fitted by professional abs friendly staff.
Chrissie B.
Chrissie B.
17:07 05 May 21
I love my doors! It’s transformed my place. The people are great, no nonsense, organised and efficient. I’d recommend them to anyone
Darius C.
Darius C.
12:29 05 May 21
The quality of the product and the care taken in design and fitting is excellent. Really pleased with the finish and the service throughout. Excellent value.
Ken K.
Ken K.
09:37 21 Apr 21
Excellent planning and product advice. All the staff were polite courteous and friendly.On the day of the installation, the team arrived bang on time -we live in Wales so a long drive from Kent! They had the job done by lunchtime (fitting a sliding patio door) and I have to say that on first impression of the unit, it looks and feels like solid quality.
Adrian W.
Adrian W.
12:15 13 Apr 21
We had a 5m stretch of these wonderful doors installed several years ago and have been very happy with the uninterrupted view of the garden that they allow from the living room. They are admired by every tradesman who sees them. A minor problem we experienced with water ingress last year was promptly and effectively resolved, and the doors were serviced for free at the same time.
Ian J.
Ian J.
15:06 26 Feb 21
We love our new kitchen windows fitted by FGC - we particularly chose them for their slim frames. Their service has been excellent throughout, including on a recent maintenance item. We would highly recommend them.
Tica C.
Tica C.
13:21 13 Feb 21
Excellent product fitted by professional and friendly staff. Would absolutely recommend.
Bernadette C.
Bernadette C.
14:59 10 Feb 21
Great staff and great products! Have visited the showroom to view doors, really loved all of them! Have referred to a friend - Can't recommend enough
Elly B
Elly B
14:53 22 Sep 20
Really great doors. Really are something different. Expensive, but you really pay for what you get here.
Adam F.
Adam F.
12:56 10 Aug 19
so pleased with the first class service we received from the first phone call to the installation I would highly recommend FGC !
Chris S.
Chris S.
15:47 12 Oct 17
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What our customers say

Thank you for a brilliant product

Thank you for a brilliant product I am so glad I chose FGC for my windows/doors everybody who sees them is so impressed by them but mostly my wife and myself!
Thanks again [and your team] Best regards
Brian 20160927

Baldwin – Lincoln

May I ask you for a review on how we performed? – all very good except that it took a month to get the correct size of glass doors after the wrong sized ones turned up on initial installation – good job it wasn’t winter or might have been having a different conversation. I appreciate

Highly Recommended

Excellent product. First class service. Good communication. Skilful, competent fitting team, clean & tidy. Wouldn’t hesitate to recommend FGC to anyone! We’re highly delighted with our frameless glass curtains!

Diane Ratcliff
Diane

the amazing glass door from FGC

The amazing glass door has transformed our kitchen and given it a wonderful inside/outside living feel and flooded the room with sunlight. It’s a fantastic product. The whole team at FGC were superb.

Gerry Geddes
Gerry

Superb service combined with outstanding designed product

In my view, the hallmark of something well designed is simplicity combined with good looks… FGC offer this in spades. Having looked at literally hundreds of bi-folding doors, we were struck by how straightforward the FGC product is – and, as far as it is possible to eliminate the frame except around the exterior of

Michael Roghani-Brown
Mike R-B

Stunning Glass Doors

FGC are an excellent family run business. They manufactured and fitted a stunning pair of glass doors for a private client which were complicated in design but FGC were keen and willing to help resolve all details successfully. Would highly recommend. Thank you.

Emma Farquharson
Emma F

Mr A – Leavesden

With regards to feedback, the pre-sales advice and support from Adrian was excellent and we found it really valuable to visit the factory and see the demonstration doors. Furthermore, the installers were very professional, on time, polite, tidy, hard working and went out of their way to ensure we were comfortable operating the doors before

Fantastic company.

Thank you for supply and fitting the beautiful bi folding doors to one of our bespoke projects. Customer service has been second to none. Timescales have all been met as promised. Would definitely use this company again in the future.

L G Blower Specialist Bricklayer Ltd
L G Blower Specialist Bricklayer Ltd

Much Admired

We are very pleased with the installation. It has been much admired. Mrs D, Kent

Mrs D, Kent

Pleased with the product and installation quality.

I found Frameless glass Curtains very easy and trustworthy to deal with. All personnel I had contact with were polite and professional. I am very pleased with the product and installation quality.

Mr M Donovan
Mr M Donovan

Delighted

Delighted with final result and extremely pleased that I decided on these ‘frameless glass doors’ over conventional bifolds. The company had no end of patience with any pre-order questions that I raised and the factory visit and visit to view an existing installation were very informative and reassuring. The team that fitted were professional, attentive

Linda Trodd
Mrs T

bringing the outside in!

as an Architectural Technologists, I stumbled across FGC and its proved to be my best stumble. I have knocked two rooms into one to make the most of viewing my garden, my wife and I were looking for the most unobtrusive bi fold door frame to maximise the view, which was proving a challenge until

Anthony Mackin
Anthony

Published on September 30, 2016

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