CCTV before the cut
Drain camera through the stack and the kitchen waste line. We see the failed section, the bellies, the root ingress. You see the same footage. The diagnosis is on video, not on guesswork.
Sewer · Spanish registry · Eixample stacks daily
Cast-iron drain stacks, kitchen waste lines, bathroom drainage routes — replaced or rerouted in PVC or HDPE. CCTV before we open the wall, slope calc before we cut, hydro-test before we close it. Dani is on the Spanish plumber registry; the comunidad paperwork is part of the job.
SEWER · BARCELONA · 2025
A drain stack is not a one-day swap
Half the "blockages" we get called on are not blockages. They are slope failures, sagged sections of cast-iron pipe, or stacks rusted through behind an old chase. CCTV finds the actual cause in 20 minutes. Then we plan the cut — what to replace, what survives another decade, where the join goes — and present a fixed price before opening the wall.
Drain camera through the stack and the kitchen waste line. We see the failed section, the bellies, the root ingress. You see the same footage. The diagnosis is on video, not on guesswork.
1880–1920 Eixample stacks are cast-iron, sometimes ungrouted into the pati de llums. We have the kit and the comunidad relationships to replace through the existing route in HDPE without breaking the building.
1.5–2% fall on horizontal waste, 5° minimum at branch joints. We measure with a digital level and document the run. That is why our installs do not block six months later.
Shared stacks need comunidad sign-off. We draft the notice, attend the junta if needed, coordinate with neighbours. You don't lose six weeks because the riser belongs to the building, not the flat.
Sewer quote · 5 questions, 1 minute
Five questions and Dani calls you back the same day. CCTV survey is part of the visit. Fixed-price quote within 48 hours, with the camera footage and the cut plan attached.
Two scopes, same hydro-test
Failing stack section replaced (3–6 m of HDPE through the pati de llums), kitchen waste line rerouted, single bathroom drain rebuilt during a renovation. CCTV report at the start, hydro and flow test at the end. Comunidad paperwork included if the stack is shared.

How we work · 4 stages
Camera through the stack and the waste lines. Failed sections marked, slope checked, root or scale ingress noted. Footage delivered the same day.
Where to open, where to join, what stays. Comunidad notice drafted if the stack is shared. Fixed-price quote within 48 hours of the survey.
Sections in HDPE silent-grade, slope set with digital level, joints solvent-welded or compression-fitted as the run requires. Stack wrapped in acoustic insulation.
Drain run with bucket and dye, hydro-test on supply joins, CCTV after reinstatement to confirm slope holds. Logs and footage in the handover pack.
Common sewer questions
Free CCTV survey
Send your address, the symptom, and the timeline. Dani calls back the same day to book the CCTV survey and confirm the price corridor.