Callback →

Sewer · Spanish registry · Eixample stacks daily

Sewer and drain stack installation,
hydro-tested.

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 installation Barcelona — Dani replacing a failing cast-iron drain stack section with HDPE through a pati de llums riser on an Eixample apartment SEWER · BARCELONA · 2025
4.9★★★★★
Google Reviews 128 reviews
REG.
Spanish registry Licensed plumber + comunidad-handled
€2 000
From, fixed price Apartment drain section + reroute
24m
Workmanship warranty Hydro + flow test logs included

A drain stack is not a one-day swap

CCTV first. Then the cut.

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.

01

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.

02

Pre-war stack experience

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.

03

Slope calc, not eyeball

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.

04

Comunidad paperwork done

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

Real price for your sewer work, before the wall opens.

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.

Loading…

Two scopes, same hydro-test

Pick the scope. The licence and warranty don't change.

Apartment section + reroute · single bath / kitchen

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.

From
€2 000fixed
Typical
€2k–€4k
  • CCTV camera survey + footage deliveredincluded
  • Stack section in HDPE (silent-grade) up to 6 mincluded
  • Kitchen waste line rebuilt with correct slopeincluded
  • Single bathroom drain rerouteincluded
  • Comunidad notice + junta attendance if neededincluded
  • Hydro-test + flow test logsincluded
Sewer section reroute — HDPE silent-grade drain stack section installed through a pati de llums after CCTV diagnosis on an Eixample apartment

How we work · 4 stages

CCTV, plan, cut, test.

CCTV + diagnosis

Camera through the stack and the waste lines. Failed sections marked, slope checked, root or scale ingress noted. Footage delivered the same day.

Cut plan + comunidad

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.

Cut + install

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.

Hydro + flow test

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

What clients ask at the CCTV.

Plumber is for the small stuff at €55/h — a slow drain, a single blockage, a leak under a sink. This page is the drain side at scale: stack replacement, kitchen waste reroute, full-flat drainage redesign. Fixed-price scope from €2 000.
CCTV decides. If the failure is one 2 m section in the bathroom branch, we cut and rebuild that section in HDPE. If the stack is rusted through across multiple floors, replacing the whole riser is cheaper than three separate visits over six years.
Yes, shared stacks belong to the comunidad. We draft the notice, deliver it, and attend the junta if required. Approval typically lands in 4–6 weeks. We schedule the cut around it so your renovation does not stall.
1.5–2% fall on horizontal waste lines (1.5 cm per metre). 110 mm WC pipe needs at least 5 m of run before joining the stack. We measure available slope at the survey — if there is not enough fall, we redesign or recommend a sanitary pump.
24 months written workmanship on the install. CCTV after reinstatement confirms the slope held. Manufacturer warranty on materials — silent-grade HDPE typically 10 years on the pipe itself.

Free CCTV survey

Same-day call-back, CCTV-checked install.

Send your address, the symptom, and the timeline. Dani calls back the same day to book the CCTV survey and confirm the price corridor.