Frequently asked questions
Everything about indicative prices, photos and the process of your renovation – and about ordering, measurements, delivery and warranty for windows and doors.
Renovation & indicative price
Is the displayed price binding?
No. The indicative price is a non-binding estimate based on your details and the photos you submitted. You receive a binding offer only after a technical review by our team and – if required – a measurement or site visit.
Which photos are needed?
An overview of the room or facade, a straight-on photo of the relevant component, close-ups of damage and of connections and edges, ideally a scale reference (e.g. a folding rule) and a photo of the access situation. The project start shows the right hints for each trade.
Can I select several trades?
Yes. Combine as many categories as you like – for example windows, bathroom and painting – or choose a complete renovation directly. Related work such as disposal, window sills or painting around the opening can be added in the result.
In which regions is Klarwerk available?
Klarwerk accepts projects in Germany, Austria and Switzerland. Whether a specific trade can be carried out at your location is confirmed during the technical review based on your postcode.
What happens after the estimate?
Our team reviews your photos and details, asks follow-up questions where necessary and arranges a measurement or site visit if required. You then receive a technically reviewed, binding offer. Work only starts after you commission it.
Is a site visit necessary?
Not always. Many projects can be reviewed from photos and details. Windows require a measurement before production; complete renovations and work on facades, roofs or heating usually require an inspection. We tell you what applies in your case after the review.
How are my photos stored?
Your photos are transmitted over an encrypted connection, stored together with your request and viewed by our team solely to assess and technically review your project. During preparation in your browser, images are downscaled and metadata such as the capture location is removed. Retention follows the processing of your request; on request we delete your photos at any time. Please do not photograph uninvolved people or sensitive documents.
Can Klarwerk coordinate a complete renovation?
Yes. Klarwerk plans the sequence of trades, bundles qualified specialists, coordinates materials and schedules and documents decisions and hand-overs. You have one point of contact. The binding overall offer is prepared after the on-site survey.
Ordering & Process
Is the price estimate in the configurator binding?
No. The price estimate in the configurator is non-binding and for guidance only. The actual price is set out in the binding quote after our team has personally reviewed your details.
How long until I receive my quote?
Once your complete enquiry has been received, you get a personally checked, binding quote by email within 24–48 hours (business days).
Does the enquiry cost anything?
No. Configuration and enquiry are completely free and non-binding. You incur no costs whatsoever until you explicitly confirm the quote.
Can I order several different windows in one enquiry?
In the configurator you can set the quantity for one configuration. For different configurations (e.g. different sizes or opening types), please use the notes field to describe all variants.
What happens after I confirm the quote?
After your confirmation and the agreed deposit, made-to-measure production begins. You receive an order confirmation with an expected delivery date.
Measurements & Measuring
Which size should I give — window or masonry?
Please always give the rough opening size — the clear opening in the masonry. Not the size of the old window. Find out more in our measuring guide.
How do I measure the rough opening?
Measure the width and height of the opening at three points each and use the smallest measurement. You'll find details in our measuring guide.
What if I'm not sure about my measurements?
Give your best possible measurement and upload photos or sketches. Our team checks plausibility before preparing your quote.
Products & Quality
Which products do you offer?
We offer made-to-measure uPVC windows (PVC-U), balcony doors and lift & slide doors. With optional extras such as roller shutters, insect screens, RC2 burglary protection and various glazing options.
Which glazing options are available?
Standard: double thermal-insulation glazing. Optional: premium triple glazing, acoustic glazing or solar-control glazing. Details and surcharges in the configurator.
Are the products certified?
All products are manufactured to European standards. CE marking to EN 14351-1 is planned. Test reports are provided with your quote. Details are placeholders pending final supplier verification.
Delivery & Installation
Which areas do you deliver to?
We currently deliver across Germany (all postcode areas).
How long is the delivery time?
After order confirmation, delivery usually takes 3–5 weeks. We confirm the exact date once your order is received.
Do you offer installation?
We deliver for self-installation or installation by your own tradesperson. On request, we can put you in touch with qualified installers in your region.
Warranty & Service
What warranty do I get?
All products come with a 5-year warranty from the delivery date covering material and workmanship defects. See our warranty terms for details.
What about transport damage?
Please document any damage with photos when accepting delivery and report it within 48 hours. We will resolve the matter promptly.