Five Details That Are Most Easily Overlooked During Door and Window Acceptance Tests
Release date:
2025-09-01
Window and door inspections are often easily overlooked during home inspections, which frequently leads to recurring issues down the line. Experienced home inspectors share five key points you should definitely pay attention to when checking windows and doors—covering design, construction, and installation in detail.
Door and window dimensions do not meet specifications.
Once doors and windows are installed, making corrections later can be extremely troublesome, so it’s crucial to get the design right the first time. The dimensions for doors and windows are strictly regulated in the "Residential Design Code," yet some unscrupulous developers, in their quest to cut costs during construction, often arbitrarily reduce the size of door openings—causing significant inconvenience to residents' daily lives. For instance, Mr. Li recently purchased a new home, only to discover during renovations that the doorways were far too narrow. Large furniture pieces and building materials simply couldn’t fit through, and upon measurement, he found the doorways were just 76 cm wide—14 cm narrower than the national minimum standard of 90 cm.
Reminder to everyone: When inspecting the property, owners should bring their own measuring tape to check the dimensions of each room’s doorways and windows, ensuring they meet the requirements outlined in the Housing Design Standards.
The bottom frame of the doors and windows has no drainage holes.
A professional home inspector pointed out that, aside from sizing issues, another significant problem with the door and window design is the lack of drainage holes. These holes are essential because they allow any water that accumulates beneath door and window frames during rainy days to drain away smoothly—preventing puddling that could otherwise lead to corrosion of the frames.
No drip line at the top of the window
The installation of doors and windows comes with specific construction requirements—such as adding a drip edge along the outer sill of the window—to prevent rainwater from flowing down the window frame during rainy days, which could otherwise seep into the room and damage the interior wall surfaces. Over time, this can lead to dampness in the walls, eventually causing mold and mildew growth.
Reminder to everyone: Window and door leaks are a major challenge in home living. When inspecting your property, homeowners must carefully check whether the exterior edges of windows have proper drip lines installed. If not, be sure to ask the construction team to redo the work.
Missed applying sealant
Once the doors and windows are installed, caulking is required—it’s a fundamental construction standard. If the joints between the doors/windows and the lightweight structure aren’t properly sealed with caulk, not only will there be drafts, but water could also seep in during rainy weather.
Reminder: This issue should not be taken lightly. When inspecting the property, homeowners should carefully check each door and window frame to ensure proper caulking—and make sure no areas have been missed. Otherwise, by the time you move in and notice problems, it’ll already be too late.
Window and door deformation
Window and door deformation is often caused by bumps during the installation process—such as dents or scratches on the frames. While these issues may only affect aesthetics in minor cases, they can lead to significant problems like doors and windows becoming difficult to open or close.
Reminder: Even slight deformations in doors and windows need to be repaired—otherwise, prolonged use will worsen the distortion, leading to inconvenience or even posing safety risks.
Latest News
Contact Information
Contact Address: No. 7, Industrial Avenue East, Songxia Industrial Park, Shishan Town, Nanhai District, Foshan City
Warren Doors and Windows, south of Fangshan Road and west of Dongtai Road, Dongcheng Subdistrict, Linqu County, Weifang City, Shandong Province
Become A Deaters :Info@wolunmc.com
National customer service hotline:+86 400-676-9888
WhatsApp:+86-18866798677
Beijing customer service phone number:+86 010-68319888
Douyin
Xiaohongshu
E-mail：
Tel：
400：
The Little Red Book：
Tiktok：
WeChat：
在线客服添加返回顶部
页面顺滑的滚动
右侧在线客服样式 1,2,3 4
图片alt标题设置： Beijing Warren Doors and Windows Co., Ltd.
循环体没有内容时： Materials are currently being organized—stay tuned!
CSS / JS 文件放置地