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myDouble Glazing Condensation Repair Cost
At a Glance
- The average cost of dealing with window condensation is around £500
- The job will take approximately 1 day to complete
- A complete pricing breakdown which includes what you need to consider, along with what such a task usually involves
- How long the job should approximately take and a general overview of what types of services can be performed
- How to find and hire a window specialist
Do you need to repair or replace misted double glazing?
To give you a quick idea about average double glazing repair costs, you're looking at around £500 in 2025.
Want to get a clear idea of costs?
Use MyJobQuote to find window specialists near you and get free, no obligation quotes.
Want to find out more first? You'll find our full guide below, which breaks down what your options are when you have an issue with your double glazing.
£500
Table of Contents
- How Much Does It Cost to Remove Condensation From Windows?
- Replacement Double Glazed Units Prices
- Additional Condensation Removal Costs
- What Impacts Double Glazing Repair Costs?
- What Creates Condensation in Double Glazing?
- Things to Consider With Double Glazed Units
- Doing it Yourself
- Double Glazing Repair Checklist
- FAQs
How Much Does It Cost to Remove Condensation From Windows?
This can cost around £300 for the materials, plus another £200 in labour fees, based on an average 3 bed semi-detached house.
When the seals fail on double glazed units there used to be little you could do about it in terms of repairs, the double glazed units will simply have to be replaced.
However, there is now a cheaper option where companies can actually reseal the window units without even removing the frames, which is obviously much cheaper offering a saving of around 50% against typical replacement costs!
The resealing or replacement of double glazed window units is definitely not a DIY job as the units need to be manufactured to size in the case of replacement and special equipment is required to reseal them if you choose that route.
So, if your double glazed windows are all steamed up with condensation, then you will need a local tradesman or a specialist company to fix this problem. Finding decent contractors can be difficult if you do not have any personal recommendations from friends, neighbours or family.
The easiest way to get quotes from reputable tradesmen in your area is to use the free "Post a Job" service on this website.
Hi, I’ve noticed a lot of condensation buildup on my internal windows. It looks as though some of the beading/strip where the glass panel meets the frame is worn. I have already sealed around the window frames but now think I may need advice on how to fix the issue on the panel?
"You could try and get a new bead for the window and get the window resealed but for condensation can also come from the heat in the house or you could get a more up to date glass that will stop it"
Replacement Double Glazed Units Prices
The replacement of a single unit is a relatively simple process, which for a standard unit can be completed within the hour. In the event you are replacing all your windows, this is usually considered a whole days work.
| Job Description | Material Cost | Labour Cost |
|---|---|---|
| Replace double glazed unit (standard glass) | £80–£120 | £60–£100 |
| Replace double glazed unit (low-e or toughened glass) | £100–£150 | £60–£100 |
| Replace all double glazed units in 3-bed semi-detached house | £800–£1,500 | £600–£1,000 |
Want a custom price?
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Additional Condensation Removal Costs
If you are experiencing an issue with condensation, there may well be other costs to consider if you require additional work carried out at the same time as resolving the situation.
Mould Removal
Anywhere there's condensation, due to a build-up in moisture, there's also a risk of mould. Especially within the surrounding area of a blown window or along the adjoining wall and as such the area should be well-ventilated.
It is possible to treat small areas yourself with a shop-bought spray, however, for more serious cases then professional mould removal services are also available. On average, this can cost between £400 and £500 depending on the severity of the issue.
Window Repairs
If the root cause of the problem is down to more than just the glass or sealant, then you may need to look at having the complete window repaired (including replacement frames).
The most common and affordable frames are normally uPVC windows costing on average between £250 and £750 per window.
Triple Glazed Windows
Should you find yourself in the situation whereby you've decided to upgrade your current double-glazing, then it's potentially worth considering triple glazed windows instead.
On average the cost of installing triple glazing is around £4,400 although this can depend on the size of property and the number of windows that require replacing.
In some instances the overall saving may be minimal compared to double glazing, especially if you already have a well-insulated home. However, the initial cost also comes with additional benefits such as providing extra sound insulation if you live near a busy road or can help protect against the elements along an exposed coastlines.
Window Cleaners
Whichever decision you make on dealing with the removal of your condensation issue, you will no doubt wish to keep your windows maintained in the future. This will, of course, start with a regular window clean which may cost as little as £40 per session.
Window cleaner costs vary across the UK, with areas such as London and the South East reflective of the higher cost of living. How many windows require washing and the accesibility of your property may also impact the price.
What Impacts Double Glazing Repair Costs?
While the above prices give you a good indication of how much you can expect pay for condensation removal, there are a number of other cost affecting factors which include:
- Size and style of window
- Number of windows affected
- Extent of the repairwork needed
- Type of glazing
- Location and accessibility
As you can imagine, for example, the more windows you have that need looking at the higher the cost - although having all your windows actioned at once will most likely work out more cost effective in the long run.
What Creates Condensation in Double Glazing?
Condensation is caused by a build up of moisture when there is a gap between the glass and the frame, often the result of an issue with the sealant or if the double glazing itself is damaged or cracked.
This creates a build up of mist, which will eventually make the glass harder to see through, and is often referred to as a "blown window". Should this occur, it can also lead to a wider damp issue and should be treated with a degree of urgency.
There are several reasons why condensation and blown double glazing may occur:
- Poorly installed windows
- General wear and tear on the sealant
- Natural deterioration of the frame
- Accidental damage or misuse
- Incorrect use of harsh window cleaner
Things to Consider With Double Glazed Units
If you are having an issue with condensation, it's worth considering the following points when deciding between repairing or replacing your double glazing:
- Double glazing is an investment – Installing new double glazed windows can increase energy efficiency, lower heating bills, and make your property more appealing to buyers.
- Condensation is a sign of damage – Mist appearing within the glass layers indicates the seal has broken, reducing insulation and leading to heat loss.
- Resealing is a cheaper alternative – If the frame is intact, resealing an existing window can save money, although this isn't possible for toughened glass, Velux windows, or certain wooden frames.
- When replacement is the only option – If the glass is cracked or the frame is damaged, warped, or deteriorating, resealing may not be feasible and a full replacement is required.
Doing it Yourself
Resealing double-glazed windows is not a feasible DIY project, as it requires previous experience and the use of specialist equipment.
You could potentially measure the windows yourself in order to cut out some of the labour costs when applying for a quote, however, the savings would be minimal.
Plus as any measurements have to be precise, the smallest of mistakes can result receiving double glazed windows that don't fit your existing frames.
If this happens, a refund won't be available and the only option would be to remeasure correctly and pay for the windows twice!
Although fitting new double glazed units isn't necessarily a difficult job, nor is it time-consuming, most homeowners will simply hire a local window fitter to action on their behalf to avoid any mistakes.
Double Glazing Repair Checklist
- Double glazed units can be resealed for half the price of a replacement
- Toughened glass double glazing cannot be resealed
- Misted up double glazed windows can greatly reduce the energy efficiency
- Replacement double glazed units are more expensive but more durable
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FAQs
My double glazed unit has condensation inside the window can this be repaired?
In most cases yes, this can be repaired. As long as the double glazed unit is reasonably modern and not damaged.
My double glazed back door has misted up inside the panes, can this be resealed?
No, typically double glazed doors feature toughened glass which cannot be resealed as this requires drilling a small hole in the glass itself.
Which is best, replacement or reseal?
Replacement will typically offer a much more durable fix to any condensation problems. However, replacement is also much more expensive. So if you are selling the property then resealing the windows as a much more attractive option price wise. Whereas, if you intend to stay in the property replacing the double glazed units may well work out to be the cheaper option long-term.
I have condensation in between the glass panes of my double glazed window, does this mean the seal is broken?
In most cases yes, but not always. Sometimes you may get condensation inside a double glazed unit caused by temporary issues such as high humidity or high levels of surrounding moisture due to construction work. In addition, in older double glazed windows this condensation could mean you need to replace the entire window.
Do I have to fix misted up double glazed windows?
If the double glazed unit has failed and moisture has started to appear as condensation between the panes, this will greatly reduce the energy efficiency of the window and cause cool spots and drafts in the room much like a single glazed window.
