# CalgarySewers.com > The Calgary homeowner's sewer desk — backups, clogs, roots and freeze-ups, solved in the right order. CalgarySewers.com is part of the HAUSE Sewer network — an independent Canadian information and service-request network (not a contractor). Contact: sewers@hause.ca, 403-679-3100. CalgarySewers.com is an independent help desk for Calgary homeowners with sewer and drain problems. It turns a symptom, such as a floor drain backing up, a line that keeps clogging, roots or a freeze-up, into the right next step in the right order: make it safe, decide whether it is the City's side or yours, call 311 or a vetted contractor, then prevent it. ## Guides ### Backups - [After-hours sewer emergency in Calgary: what cannot wait until morning](https://calgarysewers.com/guides/after-hours-sewer-emergency-calgary/): Night or weekend sewer problem in Calgary? What counts as an emergency, when to call 911, 311 or a contractor, and how to hold the house safely until morning. - [Backwater valve maintenance in Calgary: checks, service visits and common faults](https://calgarysewers.com/guides/backwater-valve-maintenance-calgary/): Backwater valve maintenance for Calgary homes: which valves need yearly service, a safe owner check, what a service visit includes, faults and suite rules. - [Water in a Calgary basement: sewage backup, seepage or a leak?](https://calgarysewers.com/guides/basement-water-sewage-or-seepage/): Water in your Calgary basement? Tell a sewer backup from groundwater seepage, overland flow, a sump failure or a supply leak, and learn who handles each one. - [Condo and townhouse sewer backups in Calgary: who handles what](https://calgarysewers.com/guides/condo-townhouse-sewer-backup-calgary/): Sewer backup in a Calgary condo or townhouse: who to call first, shared stacks and laterals, Alberta's 2026 chargeback rules, and what records to keep. - [Sewer backup in Calgary: what to do, in the right order](https://calgarysewers.com/guides/sewer-backup-calgary/): Sewer backup in Calgary? The order that works: protect people, stop water use, call 311 for triage, clear the cleanout, call your insurer, then a contractor. - [Storm surcharge or private blockage? How to read a Calgary backup](https://calgarysewers.com/guides/storm-surcharge-or-private-blockage/): Calgary sewer backup: a surcharged City main or a blockage in your own line? Use rain, neighbours and a water-off test to tell, then call the right party. ### City or owner - [After you call 311 about a sewer backup: updates, the crew visit and what comes next](https://calgarysewers.com/guides/after-you-call-311-sewer-backup-calgary/): After calling 311 about a Calgary sewer backup: how to get status updates, what the crew asks of you, the Customer Service Report, and next steps by outcome. - [What the City of Calgary does for sewer problems, and what it leaves to you](https://calgarysewers.com/guides/what-the-city-does-for-sewer-problems/): City of Calgary sewer services for homeowners: backup triage, City-side lines, storm drains, public trees, lateral lining and what the City won't do. - [Where does Calgary's sewage go, and why it matters for your drains](https://calgarysewers.com/guides/where-does-calgary-sewage-go/): Where does Calgary sewage go? Through your service line and City mains to Bonnybrook, Fish Creek or Pine Creek, then the Bow River, and why it matters. ### Clogs - [Basement toilet or shower backing up in a Calgary house: what it means and what to do](https://calgarysewers.com/guides/basement-bathroom-backup-calgary/): Basement toilet or shower backing up in Calgary? Read the symptom, check for a sewage pump, know what you can safely try, and when to call 311 or a contractor. - [What is the best drain unclogger? The right order of tools](https://calgarysewers.com/guides/best-drain-unclogger/): Best drain unclogger or drain cleaner? The order of tools that works, why chemicals come last, and how to clean a drain catcher or draining board drain. - [Drain cleaning in Calgary: matching the service to the clog](https://calgarysewers.com/guides/calgary-drain-cleaning-services/): Drain cleaning in Calgary: which service fits your clog, cable or jetting, why the camera matters in older communities, and how to judge a company. - [Main line clog in a Calgary house: find it, clear it, stop it coming back](https://calgarysewers.com/guides/calgary-main-line-clog/): Main sewer line clog in a Calgary home? Where clogs form in bungalows, split-levels and newer builds, what to ask when you book, and how to stop repeat clogs. ### Costs - [What a sewer backup costs in Calgary, layer by layer](https://calgarysewers.com/guides/sewer-backup-cost-calgary/): How much a sewer backup costs in Calgary in 2026: clearing the line, camera, City-side cases, cleanup, repairs and prevention, with planning ranges. ### Hiring - [Commercial and multi-unit drain cleaning in Calgary: who calls whom](https://calgarysewers.com/guides/commercial-drain-cleaning-calgary/): Commercial drain cleaning in Calgary: who is responsible under leases and condo bylaws, grease and wipes in shared lines, scheduling, and vetting contractors. - [How to vet a Calgary drain or sewer contractor](https://calgarysewers.com/guides/vet-calgary-drain-contractor/): Vetting a Calgary drain or sewer contractor: City business licence, journeyperson plumber, permits, WCB clearance, insurance, prepaid licence, red flags. ### Roots - [Tree roots in a Calgary sewer line: what to do, and when](https://calgarysewers.com/guides/tree-roots-calgary/): Roots in your Calgary sewer line? Which trees are involved, what you may do about City trees, when to cut, and when cutting stops making sense. ### Seasons - [Chinooks and your drains: Calgary's freeze–thaw problems, and fixes](https://calgarysewers.com/guides/chinook-freeze-thaw-drains/): How Calgary chinooks affect drains: iced storm drains, meltwater at the foundation, frozen downspouts and sump lines, roof vent frost and cleanout damage. - [Frozen sewer line in Calgary: signs, safe thawing and prevention](https://calgarysewers.com/guides/frozen-sewer-line-calgary/): Frozen sewer line in a Calgary cold snap? Which lines freeze, how to tell ice from a clog, how pros thaw it, what not to do, and how to prevent it. - [Spring melt to hail season: a Calgary basement backup plan](https://calgarysewers.com/guides/spring-melt-storm-season-calgary/): Calgary spring melt, storms and hail: keep sewage and water out of the basement, from backwater valve tests and gutter cleaning to a storm-day routine. ## Tools, costs and reference - [What a drain or sewer service call costs in Calgary (2026 planning ranges)](https://calgarysewers.com/costs/calgary-sewer-service-call-cost/): Calgary drain cleaning prices, 2026 planning ranges: main line clearing, branch drains, camera, jetting, root cutting, frozen lines and after-hours calls. - [Calgary Sewer Season Calendar](https://calgarysewers.com/tools/calgary-sewer-calendar/): A 12-month Calgary sewer maintenance calendar, personalized by home era, backwater valve, sump pump and trees, with the current month highlighted. - [City or Owner? Responsibility Triage](https://calgarysewers.com/tools/city-or-owner/): Is your Calgary sewer problem the City's or yours? Answer four questions about symptoms, neighbours, rain and camera results to see who to call first. - [Calgary's sewer seasons, and what each one asks of your house](https://calgarysewers.com/seasons/): Calgary's sewer year, season by season: cold snaps, chinooks, snowmelt, storm and hail season, freeze-up and holidays, and how home era changes the risks. - [Calgary sewer glossary](https://calgarysewers.com/glossary/): Plain definitions of terms Calgary homeowners meet in a sewer problem: 311 triage, cleanouts, surcharges, backwater valves, TIL, CQT, WCB clearance. - [Calgary sewer help desk: frequently asked questions](https://calgarysewers.com/faq/): Calgary sewer questions answered: backups, 311, who owns the line, clogs, roots, frozen lines, chinooks, vetting contractors and drain cleaning costs. ## Network - [PipeCleaning.ca](https://pipecleaning.ca/): The Canadian field manual for cleaning drain and sewer pipes — by method, by material, by house. - [SewerQuotes.com](https://sewerquotes.com/): What sewer work should cost, what a fair quote contains, and how to compare three of them. - [SewerInspector.ca](https://sewerinspector.ca/): Sewer camera inspections, explained frame by frame — before you buy, renovate or dig. - [DrainAugering.ca](https://drainaugering.ca/): Find the clog, pick the right cable, and know when augering is the wrong tool. - [SewerCleaners.ca](https://sewercleaners.ca/): Hiring a sewer cleaner, keeping the line clear, and stopping backups before they start. - [SewerRoots.ca](https://sewerroots.ca/): Tree roots in sewer lines — why they get in, which trees are worst, and how to stop them for good. - [SewerJetting.ca](https://sewerjetting.ca/): Hydro jetting, pressure by pressure — what it clears, what it can break, and when it is worth it. ## Optional - [Full text for language models](https://calgarysewers.com/llms-full.txt) - [Editorial standards](https://calgarysewers.com/about/)