Plumbing Help for Denver Homeowners: Sewer Lines, Drains, Water Heaters and More

Distance: Denver is about 8.9 miles from Aurora.

Who to call in Denver, and what happens next

Say what is happening and give the street address. The dispatcher confirms the address is inside Denver city limits, because several ZIP codes shared with the city also cover Edgewater, Lakewood, Sheridan, Glendale, Aurora and Adams County, and the permit office and licensing rules differ by jurisdiction. A plumber in our network then takes the call, and license details are there for the asking up front.

Denver is a consolidated city and county under the state constitution (Colorado Constitution, Article XX), so one government handles permits, licensing and the sewer system. There is no separate county building office to look for once you know the address is in the city.

Sewer line repair in Denver: whose pipe is it?

Denver Wastewater Management maintains the public sanitary sewer mains. It states that it is responsible only for those mains: the private tap and service line from the house belongs to the owner, and the city advises hiring a licensed plumbing company for it (Denver Wastewater Management FAQ). A backup that reaches a basement drain is the case where that difference matters.

Call the city at 303-446-3400 to have the main checked. If the main is clear and the blockage is on your side, the plumber cameras the line to see whether it is roots, a break or a clog, then recommends a clean, a spot repair, a lining or a replacement. The sewer line repair page sets out each option.

Drain cleaning in Denver

One sluggish fixture, a tub that backs up and a whole house of gurgling drains each mean something different about where the blockage sits. Denver homes of many eras have different drain materials, and the plumber works out whether a cable or hydro jetting will clear the blockage or whether a camera is needed first. The clog page covers how the cable, the jet and the camera differ.

Water heater repair in Denver

Hot water that fails, a tank that weeps at the base or a heater that rumbles comes down to one question: has a part failed, or has the tank? Under Colorado’s rule, a replacement is licensed work done by a plumber employed by a registered contractor, with a permit and an inspection (board memo). The water heater repair page explains which fault is which.

Tankless water heaters in Denver

Denver Water’s water is soft to moderately hard, which is gentler on a tankless heat exchanger than harder water, though a flush on the manufacturer’s schedule still matters. Tankless units ask more of the gas line and the vent, and a bigger gas line brings a permit of its own. See tankless units.

Faucet, toilet and fixture repair in Denver

Fixtures that misbehave, such as a toilet that never stops filling or a shower valve that will not close, usually trace to a worn part, and a bathroom remodel adds rough-in work behind the wall. The faucet page separates the repairs from the replacements.

Water damage restoration in Denver

When a pipe bursts, an appliance line gives way or sewage comes back up, the water has to be pumped out and the structure dried. The water damage page carries a separate water damage line for those calls, and it explains extraction, drying, mold testing and what insurers ask to see documented.

Commercial plumbing in Denver

Restaurants, landlords and property managers in Denver call about grease lines, shared stacks and tenant leaks. Denver licenses plumbing contractors itself: a Denver plumbing contractor license is required, and the state contractor and master plumber cards must be current before it can be renewed (Denver contractor licensing). A state license alone does not replace it, so ask for the Denver license and check it in the city’s search. See plumbing for businesses.

Repiping, leaks, gas lines, water heater installation and more

Other jobs follow the same routing. A whole-house repipe replaces failing supply lines, leak page traces water that cannot be seen and water heater replacement covers a replacement from sizing to permit. gas line installation and repair, softener and the disposal page each have their own page. Outdoor plumbing such as hose bibs is handled too. Slab leaks and water line problems are on the slab leaks page and service line page pages.

Water supply and hardness in Denver

Denver Water supplies treated water to the city and many suburbs, so a supply-side problem such as the meter or pressure at the main goes to Denver Water, and pipes inside the property line go to a plumber (Denver Water 2026 Water Quality Report). Denver Water classes its water as soft to moderately hard, slightly harder in winter. Its 2026 report lists total hardness in the distribution system averaging about 105 mg/L in 2025, with a range of 55 to 124 mg/L, or about 6 grains per gallon.

Expect some scale on fixtures and heaters and an occasional flush, with a softener as an option. Weighing one up is covered on the water filtration page.

Sewer, septic and permits in Denver

Denver’s Permitting Office handles permits on private property. For single-family, duplex and townhome work, trade permits such as plumbing are tied to the main residential construction permit, so a remodel that includes plumbing needs the plumbing scope listed in that permit (Denver Permit Office). Denver also offers a homeowner exam: only an owner-occupant may take it, pull permits and do the permitted work, and other work goes to licensed contractors.

Emergency plumber in Denver, 24/7

A pipe that lets go at 3 a.m. in Denver does not wait for morning. The dispatch line is staffed around the clock, confirms that the address is inside the city and routes the call; the Aurora home page sets out the first steps for a leak or burst.

Neighborhoods, landmarks and ZIP codes covered in Denver

These are Denver places verified against the city’s own neighborhood layer or the places’ own sites. The ZIP list follows, and the dispatcher confirms the street address on the call.

ZIP codes the dispatch network serves inside Denver

• 80201
• 80202
• 80203
• 80204
• 80205
• 80206
• 80207
• 80208
• 80209
• 80210
• 80211
• 80212
• 80214
• 80216
• 80217
• 80218
• 80219
• 80220
• 80221
• 80222
• 80223
• 80224
• 80225
• 80226
• 80227
• 80230
• 80231
• 80232
• 80235
• 80236
• 80237
• 80238
• 80239
• 80243
• 80244
• 80246
• 80247
• 80248
• 80249
• 80250
• 80251
• 80252
• 80256
• 80257
• 80259
• 80261
• 80262
• 80263
• 80264
• 80265
• 80266
• 80271
• 80273
• 80274
• 80281
• 80290
• 80291
• 80293
• 80294
• 80299

Nearby areas

Three neighbors have pages of their own, with straight-line distances between area centers.

• plumber in Commerce City about 7.3 miles apart
• Englewood service area about 10.1 miles apart
• plumber in Greenwood Village about 10.3 miles apart