Sewer cleaning and maintenance contracts for property managers
Greentech Solutions is a long-term partner for property managers, housing cooperatives and developers across German-speaking Switzerland. Annual maintenance contracts with consolidated billing per property, one point of contact, documented interventions - and emergency priority for contract customers. Swiss family business, no middleman, quote before dispatch.
Property managers need three things from their sewer service partner: reliability in emergencies, clean documentation for owner reporting and fair, transparent billing without surprises. Greentech Solutions has operated out of Schlieren since 2017 and manages portfolios from 5 to 150+ properties - from a single-owner portfolio to a cooperative with several thousand apartments.
What sets us apart from classic sewer cleaners: we do not think in individual jobs but in annual maintenance plans per property. You get one point of contact, one consolidated invoice per property (easy to pass on), and in an emergency a guaranteed response time - on weekends too. After every job you receive a report, findings and recommendation in one PDF, worded so you can forward it unchanged to the owner. No middleman model, no hidden mark-ups, no surprise price on arrival.
Services for property managers
The most common services in our maintenance contracts. All combinable in a single contract - we align the scope with your portfolio.
Sewer cleaning
High-pressure jetting, blockage removal and root cutting
Learn more →Sewer inspection
CCTV camera surveys with damage classification to SN EN 13508-2
Learn more →Maintenance & disposal
Separator servicing, infiltration systems and retention
Learn more →365-day service subscription
Maintenance contract with annual inspection and cleaning at fixed rates
Learn more →Maintenance contract models
Three contract models cover most portfolio sizes. Combinable to fit your needs - talk to us about your requirements.
Basic
Single-family portfolios, smaller properties
- Annual jetting of the main line
- Visual inspection of shafts
- Digital job protocol
- Emergency priority
For property managers with small portfolios of 5-20 single-family homes or small apartment buildings.
Plus
Apartment building portfolios, cooperatives
- Annual jetting of main and stack lines
- CCTV camera survey every 3 years
- Quarterly report by email
- Consolidated billing per property
- Emergency priority
For cooperatives and managers with apartment-building portfolios. Includes SN EN 13508-2 documentation.
Premium
Large portfolios, commercial buildings, developers
- Individual maintenance plan per property
- Semi-annual jetting plus annual CCTV inspection
- Damage classification to SN EN 13508-2
- Rehabilitation prioritisation with cost forecast
- Dedicated account manager
- Emergency response time guaranteed under 45 min
For large management or developer portfolios with continuous rehabilitation workload.
Your advantages as a property manager
Maintenance contracts on demand
Annual contracts with defined scope and transparent billing - planning certainty for your whole portfolio, no middleman mark-up.
Portfolio management
We coordinate all properties in your portfolio centrally - one point of contact, uniform reporting, aligned annual dispatch plan.
Consolidated billing per property
One invoice per property with a clear breakdown - ready to be passed straight on to the owner association or the individual owner.
Priority in emergencies
As a contract customer you get priority when emergencies happen - response time under 60 minutes in the main cantons, 24 hours a day, 365 days a year.
How consolidated billing per property works
You manage 12 properties, we jet three of them on the same day. Result: you receive three separate invoices - one per property, with a clear breakdown of services and costs.
Benefit: you can pass each invoice directly on to the relevant owner association or individual owner without having to unbundle a consolidated bill afterwards. For your own accounting we can provide a monthly summary on request - best of both.
That is an operational difference compared with middleman models, which typically issue a single invoice per client and then add a 10-25 percent margin on top of the service provider. With us: directly from the local service partner, without an intermediate margin.
Typical sewer issues by building era
Which damage patterns appear often depends strongly on the construction era. We align maintenance intervals accordingly:
Older buildings (before 1960)
Stoneware lines with socket joints. Common: offsets from settlement, root ingress from street trees, mortar wash-out at joints. Recommended intervals: jetting every 2-3 years, CCTV inspection every 5 years.
Post-war properties (1960-1980)
Concrete and Eternit lines. Common: corrosion from lime-rich water, cracks at the invert, material fatigue at transitions. Recommended intervals: jetting every 3-5 years, CCTV inspection every 7-10 years.
Residential builds (1980-2000)
PVC and PE lines, robust construction. Common: grease deposits from kitchen drains, hair build-up in collector lines, occasional root ingress at outdoor connections. Recommended intervals: jetting every 5-7 years, CCTV inspection every 10-15 years.
Modern properties (after 2000)
High-quality plastic lines, often already leak-tested at build stage. Common: construction defects in the first years, otherwise unremarkable. Recommended intervals: jetting every 7-10 years, leak testing every 10-15 years (GSchV requirement).
What does a maintenance contract cost?
The cost of a maintenance contract depends on three factors: number of properties, service depth per property (Basic, Plus, Premium) and property characteristics (era, region, history).
A Basic contract for 5-10 single-family homes sits in a different range from a Premium contract for a developer portfolio of 50+ apartment buildings. Instead of advertising with flat-rate figures we do it the other way round: you share the portfolio list and we prepare a written detailed quote with scope and annual cost frame per property. No middleman mark-up, no hidden costs.
Reference contracts
Property manager, canton of Zurich - 24 apartment buildings, Plus contract
Annual jetting of main and stack lines, CCTV inspection every 3 years. Consolidated billing per property, quarterly reporting by email. Three years without an unplanned emergency across the 24 buildings.
Cooperative, Aargau - 8 apartment buildings, Plus contract
Maintenance plan with damage prioritisation after the first CCTV inspection. Three properties with rehabilitation needs identified, phased over 2 years using inliner. Estimated 70 percent reduction in insurance follow-up damage.
Developer, Limmat valley - 60+ apartments, Premium contract
Dedicated account manager, semi-annual jetting, annual CCTV inspection with SN EN 13508-2 damage classification. Rehabilitation forecast for the next 5 years as a basis for the developer\'s budget planning.
Common questions from property managers
How does consolidated billing per property work?
You receive a separate invoice per property with a clear breakdown of services and costs - even when we service several properties in your portfolio on the same day. This makes it easy to pass costs on to the owner association or individual owner. On request we consolidate an additional monthly summary for your accounting.
What does a maintenance contract for a property management cost?
The price depends on number of properties, service depth and region. A basic contract for 5-10 single-family homes sits in a different range from a premium contract for a developer portfolio of 50+ apartment buildings. Before signing we prepare a written detailed quote with a clear scope of services - no middleman mark-up, no hidden costs.
What contract term do you recommend?
Standard is a one-year term with automatic renewal and a 3-month notice period. On request also multi-year contracts with price lock-in - useful for larger portfolios with predictable rehabilitation needs. We advise on the right term after a needs analysis.
How fast are you on-site in an emergency?
As a contract customer, under 60 minutes in the main cantons Zurich, Aargau, Lucerne and Zug, under 90 minutes in Thurgau and Schaffhausen. Under the Premium contract we guarantee less than 45 minutes in the canton of Zurich. Around the clock, 365 days a year, weekends included.
Do we receive digital job protocols?
Yes. Every job is documented digitally: date, property, scope, equipment used, findings. For inspections we also deliver damage classification to SN EN 13508-2. Everything by email in an audit-safe PDF format.
Can we pass your inspection reports directly to owners?
Yes, all reports are worded so they can be shared with owner associations or individual owners. On request we also prepare owner-friendly summaries without jargon - ideal as an attachment for the owner meeting.
We already work with another provider. What are the switching costs?
None. We take over without a switching fee and coordinate with the previous provider where needed (sewer plans, existing damage documentation). The first 30 days serve to get to know your portfolio - you only formally commit after that.
Do you cover all cantons in German-speaking Switzerland?
We operate in Zurich, Aargau, Lucerne, Zug, Thurgau and Schaffhausen. In Bern, Basel and eastern Switzerland we work on request with local partners - speak to us about your specific location.
Request a maintenance contract
Send us your portfolio essentials (number of properties, region, build-era distribution) - we prepare a written detailed quote within 48 hours.
Request a detailed quote