It is possible to fit double glazing yourself and taking
this course of action will enable you to save a considerable
amount of money. However, unless you are proficient, highly
competent and have all the right tools, it could be a disastrous
decision.
The first thing you need to do is apply for building regulation
approval from your local authority.
Once this is granted you need to find a specialist supplier
who can carry out a site survey. The cost should be reasonable
and could prove to be a very sound investment.
The surveyor will advise you on what is appropriate for
your property and your needs, give you guidance on openings
and ventilation and outline any requirements for safety
glass, fixed open trickle ventilation for gas appliances,
and fire escapes.
Equally importantly, all measurements and specifications
will be the supplier’s responsibility. All the extras – trims,
packers and sealants, etc – to do the job properly
can be specified and included in the price. It is much
cheaper and more efficient to get these from the supplier,
who buys in at trade prices.
Things to consider when choosing a supplier:
Don’t buy solely on price
Secure a 10-year product guarantee
Check whether the supplier will deliver to, and offload
at your home address
Ensure there is a sound after-sales and advisory service
Enquire whether telephone and on-site support is available
if you come up against problems
Other points to consider when doing it yourself:
Bow or bay windows are tricky and only for
the extremely proficient
Start with a confidence-boosting small downstairs window
Fitting PVCu is completely different to fitting wooden
frames
Never rest glass sealed units on edge on concrete, as they
are very likely to 'shell' and then crack as you
handle or fit them
Always secure your ladder firmly or, better still, get
someone to hold it for you