Hoegi & Imun — Kyung Hee and HUFS

• Converted hasuk and one-room buildings. The streets behind both campuses are lined with houses from the 80s and 90s that were split into five, eight, twelve rooms. One original drain stack now serves every bathroom in the building, so a clog "yours" in name is usually shared in cause — before anyone bills you for it, our camera footage shows where the blockage actually sits.
• The new Imun–Hwigyeong towers. Redevelopment is replacing whole blocks with large apartment complexes. New pipes rarely clog on their own — there, the calls are kitchen lines, fixture work, and the management-office question of whether a problem is the unit's or the building's. We coordinate with 관리실 in Korean as part of the job.
• Restaurant rows under student housing. Hoegi's famous pajeon alley and the eating streets around both campuses run commercial kitchens on residential-era pipes. If you live above one, grease from downstairs can become your backup upstairs — we trace the line and document which floor it starts on.
• Northeast-Seoul winters. Like the rest of the belt, exposed meter boxes and wall-run pipes here freeze on the first hard cold snap. New to Korean winters? Read the frozen-pipes guide in November, not in January.

Both campuses have large Chinese-speaking student bodies — this site also runs in 简体中文 and 繁體中文. And wherever you rent, read who pays — landlord or tenant before paying for anything expensive: the answer turns on the cause, and the cause is what we photograph on every visit. If your landlord only speaks Korean, we hand you a short Korean note they can act on.