![\"\"](\"https:\/\/www.diquigiovanni.com\/wp-content\/uploads\/2025\/06\/installazione-infissi-normative-qualita.jpg\")
<\/figure>\n\n\n\n- \n
- New constructions:<\/strong> the installation can be planned in detail during the design phase \u2013 from the positioning of the window or door<\/strong> frame<\/strong> within the wall to the selection of a suitable subframe<\/strong>, from the configuration of the connection nodes<\/strong> to the choice of performative materials<\/strong>, based on the type of masonry and the building\u2019s orientation.<\/li>\n\n\n\n
- Windows replacement<\/strong><\/a>: <\/strong>the installation must adapt to the conditions already in place<\/strong> \u2013 metal subframes<\/strong>, uninsulated reveals<\/strong>, aged masonry<\/strong> or architectural constraints<\/strong>. Even small elements, such as proper window sill installation<\/strong> or the use of vapor barriers<\/strong>, can make the difference between an effective installation and future issues.<\/li>\n<\/ul>\n\n\n\n
From a technical perspective, the functional principles of installation remain valid for both uPVC windows or doors and uPVC\/aluminium systems<\/strong><\/a>; the differences lie in the fitting details. Choosing high-quality products is essential, but without a properly planned and executed frame installation, even the best window will not perform as expected<\/strong>.<\/p>\n\n\n\n
<\/div>\n\n\n![\"\"](\"https:\/\/www.diquigiovanni.com\/wp-content\/uploads\/2025\/06\/posa-certificata-infissi-azienda-sqg.jpg\")
<\/figure>\n\n\n\n<\/div>\n\n\nStandards and documents for a professional installation<\/h2>\n\n\n\n
When it comes to window and door frames installation, there are specific regulations that establish the criteria, methods and responsibilities involved<\/strong>. For example, in Italy the UNI 11673 standard <\/strong>defines the design of the installation joint, the required skills of the installer and the parameters for verifying the correct execution.<\/p>\n\n\n\n
UNI 11673-1 outlines the requirements for a proper frame installation<\/strong>, based on three key performance levels:<\/p>\n\n\n\n
- \n
- Resistance to weather<\/strong> including wind, rain, and humidity;<\/li>\n\n\n\n
- Thermal<\/strong><\/a> and <\/strong>acoustic insulation<\/strong><\/a>, to prevent energy loss and external noise;<\/li>\n\n\n\n
- Mechanical strength<\/strong>, to ensure durability and safety of the frame<\/a>.<\/li>\n<\/ul>\n\n\n\n
Alongside this, UNI 11673-2<\/strong> specifies the qualifications<\/strong> a professional installer must have, while UNI 11673-3<\/strong> introduces the parameters<\/strong> used to assess compliance on-site.<\/p>\n\n\n\n
Signing a supply and installation contract for window frames <\/strong>is not only a professional step, but also a smart one. It protects both the customer and the installer by clearly defining responsibilities and preventing disputes related to drafts, condensation or faulty operation<\/strong>. A well-drafted contract should clarify:<\/p>\n\n\n\n
- \n
- Who is responsible<\/strong> for designing the installation joint;<\/li>\n\n\n\n
- Which materials<\/strong> will be used (sealants, tapes, subframes, etc.);<\/li>\n\n\n\n
- Timeline<\/strong>, methods<\/strong> and conditions<\/strong> of the installation of the frames.<\/li>\n<\/ul>\n\n\n\n
At the end of the project, a final inspection report<\/strong> is issued to certify that the installation has been properly executed. This document is prepared by a technician (or the responsible installer) and signed by the client. It holds significant value: in case of future issues it serves as proof of compliance, <\/strong>and is often required to access government incentives.<\/p>\n\n\n\n
In detail, the proper installation report form confirms:<\/p>\n\n\n\n
- \n
- The correct<\/strong> operation<\/strong> of each installed frame;<\/li>\n\n\n\n
- The absence of any evident<\/strong> faults<\/strong>;<\/li>\n\n\n\n
- Full compliance<\/strong> with the relevant regulations.<\/li>\n<\/ul>\n\n\n\n
<\/div>\n\n\nAll the reasons to avoid DIY window frames installation<\/h2>\n\n\n\n
Online you\u2019ll find plenty of tutorials and step-by-step guides claiming to teach how to fit a window by yourself<\/strong>. But installing a window or door frame isn\u2019t just about levelling it and screwing it to the wall – it\u2019s a technical task that requires expertise and precision.<\/p>\n\n\n\n
An improvised or unqualified window frame installation<\/strong> (often attempted in hopes of saving money) can lead to serious technical issues that are expensive to fix<\/strong>:<\/p>\n\n\n\n
- \n
- Thermal bridging:<\/strong> if the installation joint is not properly insulated, heat in winter and cool air in summer may escape easily<\/a>, increasing energy bills and consumptions;<\/li>\n\n\n\n
- Drafts and water infiltration:<\/strong> just a few millimetres of error during the window fitting can compromise the airtightness or waterproofing of the frame;<\/li>\n\n\n\n
- Malfunctioning operation: <\/strong>even a slightly misaligned frame can cause premature wear of the hardware and difficulty in opening or closing the window;<\/li>\n\n\n\n
- Low security:<\/strong> a poorly installed window is easier to force open, more prone to breakage and less resistant to burglary attempts<\/a>.<\/li>\n<\/ul>\n\n\n\n
Those who choose DIY to save money often<\/strong> end up paying more for repairs or complete replacements<\/strong>, sometimes twice as much<\/strong> as a professional job would have cost (not to mention potential structural damage, energy waste and the loss of product warranties).<\/p>\n\n\n\n
A <\/strong>team of certified installers<\/strong><\/a> <\/strong>carefully examines the window opening, assesses the building materials, selects the appropriate method and knows how to manage the critical points of each project. That\u2019s why the difference between a DIY job and a professional window\/door fitting<\/strong> might not be visible right away – but in the long run, it always shows.<\/p>\n\n\n\n
<\/div>\n\n\nDQG: certified expertise for long-lasting performances<\/h2>\n\n\n\n
Choosing DQG means choosing high-quality windows and doors, installed according to the most rigorous technical standards<\/strong>. With over 50 years of experience, our company specializes in manufacturing uPVC and uPVC\/aluminium frames<\/strong><\/a> certified by CasaClima:<\/strong> a trusted symbol of energy efficiency and living comfort in Italy and beyond.<\/p>\n\n\n\n
What truly sets us apart is our installation process: DQG relies exclusively on <\/strong>Posaclima-certified installers<\/strong><\/a>, one of the most authoritative certifications in the field of frames installation, ensuring maximum performance and long-term reliability of each product.<\/p>\n\n\n\n
Whether for new construction or the replacement of existing frames, <\/strong>in both residential and large-scale projects<\/strong><\/a>, DQG offers a turnkey service that includes:<\/p>\n\n\n\n
- \n
- Technical assessment <\/strong>of the window opening;<\/li>\n\n\n\n
- Selection of sealing and insulation materials<\/strong>;<\/li>\n\n\n\n
- Installation by technicians<\/strong> trained under the Posaclima system;<\/li>\n\n\n\n
- Complete documentation<\/strong>, including the final inspection report<\/strong>.<\/li>\n<\/ul>\n\n\n\n
As a further commitment to quality and transparency, <\/strong>DQG provides a 10-year warranty on all installed doors and windows<\/strong><\/a>: a peace of mind for those who value not just certified products, but reliable and durable solutions. Get in touch with our team to learn more!<\/strong><\/p>\n\n\n\n
<\/div>\n\n\n\n - Selection of sealing and insulation materials<\/strong>;<\/li>\n\n\n\n
- Drafts and water infiltration:<\/strong> just a few millimetres of error during the window fitting can compromise the airtightness or waterproofing of the frame;<\/li>\n\n\n\n
- The absence of any evident<\/strong> faults<\/strong>;<\/li>\n\n\n\n
- Which materials<\/strong> will be used (sealants, tapes, subframes, etc.);<\/li>\n\n\n\n
- Thermal<\/strong><\/a> and <\/strong>acoustic insulation<\/strong><\/a>, to prevent energy loss and external noise;<\/li>\n\n\n\n
- Windows replacement<\/strong><\/a>: <\/strong>the installation must adapt to the conditions already in place<\/strong> \u2013 metal subframes<\/strong>, uninsulated reveals<\/strong>, aged masonry<\/strong> or architectural constraints<\/strong>. Even small elements, such as proper window sill installation<\/strong> or the use of vapor barriers<\/strong>, can make the difference between an effective installation and future issues.<\/li>\n<\/ul>\n\n\n\n