Houses and pipes in Boise
The North End, Harrison Boulevard, the East End and Warm Springs Avenue have homes from the 1890s through the 1930s, with basements and clay laterals.
The Bench, Vista and the neighborhoods south of the river were built from the 1940s through the 1970s with ranches and split-levels.
West Boise, southeast Boise and the Foothills grew from the 1980s onward with newer homes and PVC drains.
Warm Springs Avenue homes have been heated by geothermal water since the 1890s.
Boise sits in the Treasure Valley along the Boise River, with cold winters, hot dry summers and hard water.
Who handles what in Boise
The City of Boise's Public Works department runs the sewer system and its water renewal facilities. Boise homeowners maintain the private lateral from the house to the city main.
Drain problems Boise homes see most
| Problem | Why it happens here |
|---|---|
| Roots in clay laterals | North End, East End and Harrison Boulevard |
| Frozen drains | Cold winter nights |
| Mineral scale | Hard water |
| Cast iron corrosion | Midcentury Bench homes |
| Grease and wipes | Busy households and Boise State rentals |
| Groundwater near the river | Low neighborhoods |
Boise drains through the year
Spring runoff raises the Boise River and groundwater, and hot, dry summers drive roots toward water.
Winter inversions and cold snaps freeze pipes in garages, crawlspaces and exterior walls.
What drain cleaning costs in Boise
| Job | Typical range |
|---|---|
| Sink, tub or toilet cleared | $135–$280 |
| Main line cleared from a cleanout | $205–$455 |
| Root cutting | $265–$605 |
| Hydro jetting | $345–$830 |
| Sewer camera inspection | $140–$285 |
| Frozen line thawing | $195–$490 |
Newer west Boise lines go fast. Century-old clay in the North End, frozen pipes and basement access take longer.
Before the plumber arrives
- 1
Pause water use
Stop the washer, dishwasher and showers.
- 2
Cold morning?
If drains stopped after a hard freeze, a pipe may be frozen.
- 3
Boise State rental?
Call your landlord first.
- 4
Find the cleanout
North End homes usually have one in the basement near the front wall.
The North End
Boise's North End, stretching from downtown toward the Foothills, is one of the largest historic residential districts in the West, with bungalows, Victorians and Craftsman homes on streets shaded by huge maples, elms and sycamores. Harrison Boulevard is lined with grand homes. Clay laterals under those trees fill with roots, and lining protects the canopy that defines the neighborhood.
Warm Springs and the East End
Warm Springs Avenue and the East End have some of Boise's grandest homes, many heated by geothermal water piped from wells since the 1890s. Old clay laterals and big trees mean roots and cracks.
The Bench
The Bench, on the plateau south of downtown, filled in from the 1940s through the 1970s with ranches and split-levels. Cast iron and clay from that era are aging, and roots from mature yard trees are common.
Hard water
Boise's water is moderately hard, and mineral scale builds up inside drain pipes over the years, especially in kitchen and laundry lines. Jetting clears scale and grease together.
A typical Boise call
In June, a family in a 1915 bungalow in the North End notices the basement floor drain gurgling and then overflowing. The plumber opens the basement cleanout and cuts out a heavy mass of maple roots about forty feet out. The camera shows cracked clay. They book a liner.
Winter inversions
Boise winters bring inversions that trap cold air in the valley for days, along with occasional arctic outbreaks. When an arctic front settles into the Treasure Valley, crawlspace lines and pipes in outside walls are the ones that ice up.
The Boise River
The Boise River runs through the city, and spring runoff from the mountains raises it and the groundwater nearby. Neighborhoods near the river and the Greenbelt see more infiltration into cracked laterals.
Rapid growth
Boise has been one of the fastest-growing cities in the country, with new homes in west and southeast Boise and the Foothills. Newer PVC lines resist roots, so problems there tend to be grease and wipes.
Boise State rentals
Neighborhoods near Boise State have many older homes rented to students. Heavy use and old laterals mean more clogs, especially on Broncos game weekends.
Restaurants downtown
Downtown Boise's restaurants and the Basque Block's kitchens, along with the busy corridors along Fairview and Overland, serve a growing population. Interceptors pumped on schedule keep kitchens open.
The Basque Block's restaurants and festivals draw big crowds, especially during Jaialdi, when every kitchen nearby runs at full capacity.
Dry summers and roots
Boise summers are hot and dry, and irrigated trees send roots far for water. Cracked clay laterals are easy targets. Root cutting in spring can head off midsummer backups.
Canals and irrigation
Old irrigation canals run through many Boise neighborhoods, carrying water during the growing season. Groundwater near those canals rises in summer, and cracked laterals take in water.
Hyde Park and the Foothills
Hyde Park, the little commercial strip along 13th Street in the North End, anchors a neighborhood of small bungalows close to the Foothills. Homes on the upper streets sit on sloping lots, with laterals that drop toward the street through decomposed granite and clay. Steep runs and old clay make sags and root intrusion common, and hydro jetting does a better job than cabling on those lines.
Basements and old foundations
Many North End and East End homes have full or partial basements with fieldstone or old concrete walls, built before modern waterproofing. When groundwater rises in spring, water can seep in through the walls as well as up through cracked laterals. A sump pump and a sealed lateral together keep most of these basements dry.
Vista and the south side
The Vista neighborhood and the blocks around Boise Airport filled in after World War II with small ranches for families working at the airport, Gowen Field and the growing downtown. Many of those homes are now rentals, with cast iron under the floor and clay or concrete laterals that have been cleared many times but never replaced. A camera inspection tells the owner whether one more cleaning will do or whether it's time for a liner.
Garage laundries and cold snaps
Midcentury Bench homes often have the washer in an attached garage, with its drain running through an exterior wall. During a January cold snap, that line can freeze solid while the rest of the house is fine. A small heater, a closed garage door and insulation on the line prevent most of these calls.
When you call
Share the neighborhood, the home's age, whether it has a basement or crawlspace and whether it's been very cold. Mention big trees near the line.
Boise ZIP codes
- 83702
- 83703
- 83704
- 83705
- 83706
- 83709
- 83712
- 83713
- 83716
- 83720
- 83725
Boise drain questions
Who handles sewer in Boise?+
Boise Public Works. Homeowners maintain the lateral to the main.
Why do North End homes have root clogs?+
Their clay laterals are about a century old and run under huge street trees.
Do drains freeze in Boise?+
Yes. Winter cold snaps can freeze pipes in garages, crawlspaces and exterior walls.
Is a sewer scope worth it before buying in the North End?+
Yes. Old clay laterals there almost always have roots or cracks.
