4 services · Boulder
Drains & sewer in Boulder, CO
A single slow sink is usually a local clog a plumber can clear in one visit. Several drains backing up at once, gurgling toilets or water at a basement floor drain point to the main sewer line, which may need cleaning, a camera inspection and sometimes repair.
- Licensed local plumbers
- The problem explained before work starts
- Price agreed before the job begins
Drains & sewer services in Boulder
Drain cleaning in Boulder
UrgentIf one fixture is slow, the clog is usually in that fixture's branch line. If several drains back up at once, or the basement floor drain fills when you run the washer, the main sewer line is blocked and needs a larger cable or a jetter.
Hydro jetting
Hydro jetting cleans the full width of a drain pipe with high-pressure water, washing out grease, scale and fine roots that a cable only punches a hole through. It works best on sound pipe and is usually done after a camera inspection confirms the pipe can take it.
Sewer camera inspection in Boulder
A sewer camera inspection runs a waterproof camera through the line from your house to the city main and records what it finds: roots, cracks, sags, offset joints or collapsed pipe. It's the best way to decide between cleaning, spot repair and replacement.
Sewer line repair
UrgentA damaged sewer line can be fixed with a spot repair, a trenchless liner, pipe bursting or an open-trench replacement. Which one fits depends on what the camera shows, how deep the pipe is, and what's on top of it, such as a driveway, trees or landscaping.
Local conditions
Drains & sewer in Boulder: what's different
Boulder's mature tree canopy and some of the oldest housing on the Front Range make root-filled sewer lines a common call. Victorian and early 1900s homes on Mapleton Hill and University Hill often have clay laterals, and mid-century ranches in Martin Acres and Table Mesa have original laterals more than 60 years old.
City of Boulder Utilities provides wastewater service inside the city, while Gunbarrel and other unincorporated areas may be served by districts. Street work needs city permits, so a camera inspection that pinpoints the problem keeps the repair, and the digging around historic hardscape and big trees, as small as possible.
- Water and sewer in Boulder
- City of Boulder Utilities provides water and wastewater service inside the city. Gunbarrel and other unincorporated areas may be served by districts.
- Permits in Boulder
- The City of Boulder Planning and Development Services issues plumbing permits; unincorporated areas go through Boulder County.
Boulder housing and plumbing
Historic homes may have clay sewer lines, galvanized supply and cast-iron drains, plus additions with newer pipe spliced in. Mid-century ranches in Martin Acres and Table Mesa have original sewer laterals now 60+ years old. Rental-heavy areas near the university see heavy fixture use.
Other Boulder conditions that affect plumbing
- Historic-home plumbing: Older homes on Mapleton Hill and the Hill often need repiping and sewer work, with care around historic finishes.
- Tree roots in sewer lines: Boulder's mature tree canopy sends roots into clay sewer joints, causing repeat main-line clogs.
- Flood-prone lower levels: Homes near Boulder Creek and its tributaries can see water in lower levels during heavy rain, which makes backwater valves and working sump pumps important.
Neighborhoods and ZIP codes
Plumbers on Thawline cover Boulder and Boulder County, including Mapleton Hill, University Hill, North Boulder, Table Mesa, Martin Acres, Gunbarrel. ZIP codes: 80301 · 80302 · 80303 · 80304 · 80305.
When to call a plumber in Boulder
- Water backing up in the tub or shower when a toilet flushes
- Several fixtures draining slowly at the same time
- Water or sewage at a basement floor drain
- Gurgling from drains or toilets
- Sewer smell inside or a soggy patch in the yard
- The same clog returning within weeks of being cleared
How these problems start and how to choose between repair options is covered in the drains & sewer guide.
Drains & sewer questions in Boulder
Are trenchless sewer repairs common in Boulder?
Are chemical drain cleaners safe to use?
More plumbing in Boulder
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