craig

Then he’s talking nonsense. You always insulate all around the frame and that includes the threshold when necessary. It doesn’t need to be foam, Compriband would be good enough.

There is a clear point you’re missing here. You employed the supplier to supply the door at the surveyed size, the installers installed said door into the existing opening. UPVC by design is “thermally” broken by the chamber design. This isn’t product related by the sounds of things but the lack of insulation under the threshold is. This needs done. Installing onto the outer brickwork in typical English builds is standard practice, it’s not the most thermally efficient position but they really haven’t done anything wrong here. I appreciate you have an issue needing resolved and didn’t exist before. Insulate under threshold and monitor. Discuss solutions before going down routes that sours the taste for everyone.

1: Is it a bad install? A: No, not the best, I’d expect them to clean up the expanding foam and trim/silicone internally (if within remit). 2: Threshold, gaps and no insulation. A: I would have expected this to be foamed and mastic applied, they’ve forgot. 3: Have they breached consumer rights under care & skill? A: No. 4: Draughts/leaking etc. A: Around the frame and on occasion via the door / window is the installers responsibility. They’ve not foamed under the door and I’d ask them to come back and do it plus mastic. Other than that, they cannot do anything about the existing cold bridges present. It’s not up to them. What I see and read a minor snags on the finishing internally and whether that was within the remit and the underside of threshold (foam/mastic). If that was reported to me as a supplier. I’d apologise and have the team attend to sort out at least one of the two issues that I see.

Structural engineer calcs, don’t install without them. You must speak with the supplier and or the main contractor. it’s imperative that design meetings and notes are available, that all RAMS have been undertaken and all weights considered for lifting. That includes mechanical lifting such as glazing robots, which weigh about 1.5 tonne. This isn’t a job for people asking questions on a forum to be honest. In addition, assuming 8mm on all 3 panes you’re looking at 240kg.

It's possible (unless they no longer offer it), to have a full cylinder with a handle inside and out. It would obviously need a little but of work but can be done.

I'll happily have a look at specs, I've asked a few people I know and no one has really heard of them or has any experience of them. If it helps, https://www.thermaglaze.com in the UK based in Wiltshire appears to be distributors for them and have a showroom. Whether they have any on display is another question, as are https://www.okohaus.co.uk/belm, https://www.dalzielonline.co.uk/, https://www.clearglazewindows.co.uk/ The type of supplier appears to vary from the standard uPVC suppliers to high end suppliers, other than that I really don't have anything I can add.

The crack is very likely to be installer error imho. i would tend to agree, welds don’t just crack, that’s to be opposite forced. Fixings should be 150mm from the corner (horizontally & vertically). This. It’s the only way to check, otherwise it has to go down as a manufacturing error. I would also suggest they haven’t packed them properly. As for glass, units fail. That’s just an unfortunate aspect but rare for brand new units to fail like this over a short period without other influences occurring (either that or glass manufacturer is just ****e. Sashes that are difficult to close due to expansion, is nearly always down to poor installation, with packers and fixings not being present or just really poorly done. I would suspect that you have zero insulation between the frame and building. Resulting in the said airflow. I have someone in mind, lives in Lincoln but we haven’t spoken in a year or two. I’ve messaged him and will see what I can do. Otherwise I have someone in Henley or I could do an independent report but Lincolns a 6.5hr drive for me. If you have a laser, run it up the glazing beads (where frame meets glass). It should be straight and if not and you see some pinching. It would indicate further inspection of packers/fixings.

Never heard of them to be honest.

I know my friends who own their own window supply company and I work with them closely, are looking to distribute Finstral and have been down in their showroom and so forth. The ex UK MD for Internorm (Andreas Simmer) is now the MD at Finstral. Good outfit, good window systems from the feedback I have received.

1: Location. 2: Window manufacturer/brand 3: Bought by installer or made by them? 4: photos/videos? Let us know and we can assist if we can.

Result.

Understood, it’s clear that changes have been requested some pre and some post sign off. Number one rule I try my best to follow, is do not accept a sign off unless you have gone through the order and the client knows what they are buying and 100% confident no changes required. The sign off should be exactly what you are ordering. Second rule is, no changes post sign off, as deposit will have been invoiced/paid and order raised to the factory. They usually charge for changes post sign off (you sign off to supplier, supplier has to sign off order to manufacturer).

Where the confirmations before or after the signed order? It’s what is on the signed order report that’s important here. Clearly they have ****ed up and not followed instructions. As for extra costs incurred for two tone, I still don’t get that tbh. and I’m in the industry. Timber is sprayed inside and out the same colour/lacquer. Aluminium cladding is from their supplier and powder coated. Different colour costs for two tone, just don’t make sense. They don’t have to change the spray booth to paint the cladding a different colour. Trust me, sanding, spraying will not be done or offered. The costs alone are prohibitive. It’s make a deal on what you have, they accept and make new windows or a legal battle.

What did you sign off and approve? Communication is great and that clear instructions have been supplied but generally, speaking 1: no finish by factory and just plain wood, invalidates any warranties (usually). 2: Signed order is yours or your appointees responsibility to check, amend/approve. They could play hardball here, what you signed is what you ordered. Do they have any responsibility? Morally I would say yes but contractually is a different thing. Edit: Of course they won’t be wanting the windows returned, they’ll need to reorder the whole order at their cost. Are the windows all the right size, just internally the wrong colour? Be prepared to negotiate. This will have a negative impact on the build, additional costs incurred for other trades and you. Think of accepting a settlement at 50% refund and go from there.

The adjusment is usually +/-3mm, the distance varies on system but HF410/HF510 you're look at 13.5mm distance between frame and sash (timber to timber), the keeper is roughly 8/10mm in height and the mushroom sits inside the keeper when locked.