Rust Bubbles At Base Of Windscreen
- Thread starter roygarth
- Start date
Dave Wilkinson
New member
James,
We seem to be chasing each other about - first on 911uk and now here!!
Fixing the classic windscreen rust issue can depend greatly on the extent of the problem - and often the problem is MUCH worse than it appears from first glance. Fundamentally, the screen has to come out, the rusty section repaired or replaced and the repaired area repainted and blended with the surrounding area. The cost will also depend on where you go to get it done - a decent independent will be much cheaper than an official Porsche bodyshop. My guess - and it IS a guess - would be a low end of £300 - £400 with an OPC quote of possibly near double that. Bear in mind there is also the risk of the screen breaking although I think that's a rarity on the 964 since it's not a bonded screen.
Bear in mind the problem exists at both ends so costs can mount up quite rapidly.
Hope that helps.
Regards
Dave
We seem to be chasing each other about - first on 911uk and now here!!
Fixing the classic windscreen rust issue can depend greatly on the extent of the problem - and often the problem is MUCH worse than it appears from first glance. Fundamentally, the screen has to come out, the rusty section repaired or replaced and the repaired area repainted and blended with the surrounding area. The cost will also depend on where you go to get it done - a decent independent will be much cheaper than an official Porsche bodyshop. My guess - and it IS a guess - would be a low end of £300 - £400 with an OPC quote of possibly near double that. Bear in mind there is also the risk of the screen breaking although I think that's a rarity on the 964 since it's not a bonded screen.
Bear in mind the problem exists at both ends so costs can mount up quite rapidly.
Hope that helps.
Regards
Dave
JamesBall
Member
Thanks Dave. A quiet day at work has seen me searching the forums and asking lots of questions 
I am trying to work out if it is almost better to buy a car knowing this work needs doing and is priced accordingly or only looking at supposedly rust-free examples but which may well have rust bubbles in a few months anyway. Of course, the difficulty is not knowing what how much rust is hiding below the surface and therefore what to "knock off" the price of a car.
I am trying to work out if it is almost better to buy a car knowing this work needs doing and is priced accordingly or only looking at supposedly rust-free examples but which may well have rust bubbles in a few months anyway. Of course, the difficulty is not knowing what how much rust is hiding below the surface and therefore what to "knock off" the price of a car.
Agree with previous posts - the lower windscreen is a rust area, as is the rear esp if you have a sunroof. The rear is more costly to fix if caused by water from the sunroof (locked drain pipe etc). So really look at that.
I think the front would cost £200-£300 to fix, from a body shop as long as it is surface rust, if holes it will cost more.
Go for a car with no bubbling if possible - either a very rare car that never had the issue, or one that has been fixed. Pull up the lower corner rubber seal a little to check. It is a windows out - but that will pop out 99.5% ok - would need a new seal, and as said if the screen has bad chips should be replaced anyway under insurance.
As far as I can recall all insurers will allow you to select the bodyshop to change the windscreen if you push them (not filling in a small crack). That said having checked this out once before, the fitters used have had experience of fitting these. If you use autoglass etc I would double check the fitter's knowledge of the car.
Good luck.
I think the front would cost £200-£300 to fix, from a body shop as long as it is surface rust, if holes it will cost more.
Go for a car with no bubbling if possible - either a very rare car that never had the issue, or one that has been fixed. Pull up the lower corner rubber seal a little to check. It is a windows out - but that will pop out 99.5% ok - would need a new seal, and as said if the screen has bad chips should be replaced anyway under insurance.
As far as I can recall all insurers will allow you to select the bodyshop to change the windscreen if you push them (not filling in a small crack). That said having checked this out once before, the fitters used have had experience of fitting these. If you use autoglass etc I would double check the fitter's knowledge of the car.
Good luck.
jboy356B
New member
Hi Roy,
There is an excellent independant Porsche specialist paintshop & restoration workshop located just outside Norwich in Horsford.
Norfolk Premier Coachworks is the company. Normally early 911 & 356 restorers they were happy to take on paintwork on my 964.
Wayne Parker is the contact there 01603 891942 if you are interested, & no, I am not on commission or associated with them in any way! []
There is an excellent independant Porsche specialist paintshop & restoration workshop located just outside Norwich in Horsford.
Norfolk Premier Coachworks is the company. Normally early 911 & 356 restorers they were happy to take on paintwork on my 964.
Wayne Parker is the contact there 01603 891942 if you are interested, & no, I am not on commission or associated with them in any way! [
]Hi guys - the 964 i am looking to buy has this issue - a ince sq rust patch on the valance at the base of the windscreen. I don't want it to put me off (but reading this maybe it should) but I do want to understand how I can assess that this is just isolated and not eating down into the chassis etc.
I dont mind paying £400 to get it fixed as I will ask for this to come off the price!
I dont mind paying £400 to get it fixed as I will ask for this to come off the price!
JamesBall
Member
An inch square is pretty big. One thing you can be sure of, what you can see is only the tip of the iceburg. You really need to speak to a quality body shop about it. There are three ways of fixing rusty scuttle panels:
1) Surface rust - can be removed, treated and repainted - nice and cheap but may well quickly come back
2) Small perforation of scuttle panel and minimal rust underneath - cut, weld-in new metal and repaint - probably £500+ and there is no way of telling is the metal is about to rust through a few inches to the side so you could end up chasing rust
3) Significant rust - new scuttle panel big, job. I had a quote for £1200! But this is the only way to be sure you have fixed the rust problem.
Option 1 is cheap but possibly/probably only temporary. Personally I'd want it checked out by a specialist and probably want more than £400 off, unless the price is already cheap enough.
1) Surface rust - can be removed, treated and repainted - nice and cheap but may well quickly come back
2) Small perforation of scuttle panel and minimal rust underneath - cut, weld-in new metal and repaint - probably £500+ and there is no way of telling is the metal is about to rust through a few inches to the side so you could end up chasing rust
3) Significant rust - new scuttle panel big, job. I had a quote for £1200! But this is the only way to be sure you have fixed the rust problem.
Option 1 is cheap but possibly/probably only temporary. Personally I'd want it checked out by a specialist and probably want more than £400 off, unless the price is already cheap enough.
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