Toilet Repair in Boulder, CO

Boulder is a renting town with a mixed-age housing stock: 47% rent, and 71% of homes predate 1990.

Short version

47% of occupied homes in Boulder are rented, so for most households the toilet is the landlord's fixture rather than the tenant's. Reporting it is normally the tenant's step, and arranging the repair is normally not. At 71% pre-1990, the housing gives no strong steer on flush volume, which makes the tank label worth a look.

Source: US Census Bureau, American Community Survey 5-year estimates, tables B25003 and B25034.

Tank and Bowl is a referral service, not a contractor. We connect homeowners with independent contractors. Contractors are required to hold whatever credential their state or municipality demands. Every state page sets out who licenses plumbers there and where to check, so you can confirm before work begins. We carry out no work, we sell no fixtures, we do not set prices, and we never charge homeowners anything — the contractors in our network pay us when we route them a call.

Who this page is for in Boulder

Renting is the norm in Boulder, at 47% of households. We are a referral service for homeowners, so for most people here the honest advice is report it in writing and describe the symptom rather than call anyone.

Occupied homes in Boulder	Share	Homes
Owner-occupied	53%	28,905
Rented	47%	25,336

Source: US Census Bureau, American Community Survey 5-year estimates, table B25003 (tenure), 2023 release. Universe: 54,241 occupied housing units.

What the age of Boulder’s housing suggests

Boulder straddles the line: 71% of its housing units were built before 1990, when the Energy Policy Act of 1992 set the 1.6 gallon maximum, and the rest since.

So the housing stock genuinely does not predict the fixture here, and the date inside the tank lid is worth more than any figure on this page.

Housing in Boulder	Share
Built before 1940	7%
Built 1940 to 1989	64%
Built 1990 onwards	29%

Source: US Census Bureau, American Community Survey 5-year estimates, table B25034 (year structure built), 2023 release. Universe: 57,765 housing units, including vacant ones — a different universe from the tenure table above. Flush volumes: US EPA WaterSense, tank-type toilet supporting statement

What is actually wrong with it

Which of these is it? Running continuously, not flushing at all, flushing weakly, leaking at the floor, or moving when you sit on it. Each has a different cause and only one of them is urgent.

Ask them to name the fault before they name the price. “The toilet needs replacing” is not a diagnosis; “the flapper seat is pitted and will not hold a new flapper” is, and it happens to be a common one.

Other Colorado towns we route in

Parker 80% owner-occupied · 19% built before 1990
Lyons 86% owner-occupied · 62% built before 1990
La Salle 86% owner-occupied · 69% built before 1990
Wheat Ridge 49% owner-occupied · 83% built before 1990
Pine 95% owner-occupied · 69% built before 1990

Everywhere we route in Colorado

Checking a plumber in Colorado

Checking a credential in Colorado

Colorado licenses are issued by the Colorado State Plumbing Board, Division of Professions and Occupations, which publishes a public search you can use before work begins.

If the dye test pointed at the flapper, that is a part, not a fixture.Worth saying on the call, because it changes what somebody arrives with. We connect you to a contractor covering your area and you are never charged. Whatever wants a plumber in Boulder can be raised when you call.

Call (888) 525-3450