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Top Toilet Repair & Replacement Contractors in Denver, Colorado Ranked

A functioning toilet is a cornerstone of any comfortable home, but when issues arise, they demand prompt and professional attention. Toilet repair and replacement services address everything from minor leaks and persistent clogs to complete fixture upgrades, ensuring your bathroom remains sanitary and efficient. For Denver residents, navigating these common plumbing problems is made easier with access to local specialists who understand the unique challenges posed by the region's hard water and historic homes. This guide will help you understand the typical issues, solutions, and considerations for finding the right professional service in the Mile High City.

High 5 Plumbing, Heating, Cooling & Electric

High 5 Plumbing, Heating, Cooling & Electric

15710 W Colfax Ave, Golden, CO 80401

High 5 Plumbing, Heating, Cooling & Electric is a full-service plumbing company serving Denver, CO. They provide a wide range of plumbing services including water heater installation and repair, drain cleaning, sewer line repair, leak detection, and gas line installation. The company uses advanced video technology for sewer camera inspections and offers trenchless sewer repair to minimize excavation. They also specialize in hydro jetting to clear blocked drains efficiently. High 5 Plumbing is licensed for gas plumbing and installs energy-efficient tankless water heaters. The company has received recognition such as the Angi Super Service Award and a BBB Torch Award for Ethics. They provide 24/7 emergency response for urgent plumbing needs.

5.0
1.7k Reviews
TYCO Plumbing

TYCO Plumbing

denver

TYCO Plumbing is a family-owned plumbing company serving Denver, CO, and nearby areas. They offer a wide range of plumbing services including leak detection, toilet repair, and garbage disposal repair. The company emphasizes integrity and professionalism, with licensed plumbers experienced in handling various plumbing issues. TYCO Plumbing provides a 24/7 answering service for customer convenience. They also engage in community support through monthly charitable events.

5.0
745 Reviews
Big Apple Plumbing LLC - Broomfield, CO

Big Apple Plumbing LLC - Broomfield, CO

1022 Depot Hill Rd Unit 10, Broomfield, CO 80020

Big Apple Plumbing LLC - Broomfield, CO provides a wide range of plumbing services in Denver, CO, including drain cleaning, sewer line repair, water heater installation and repair (tank and tankless), leak detection, gas line installation, sump pump repair, and repiping. The company serves both residential and commercial clients, handling routine maintenance, emergency repairs, and new installations with licensed plumbers. They specialize in sewer line services and offer 24/7 emergency plumbing solutions to address urgent issues like burst pipes and leaks. Big Apple Plumbing is locally owned and operated, with a focus on safety and code compliance. Their team is experienced in gas line installations and water heater replacements, ensuring efficient and reliable service. The company is known for upfront pricing, timely arrivals, and clear communication, serving Broomfield and surrounding areas including Anthem, The Broadlands, and Interlocken/FlatIron Crossing.

5.0
490 Reviews
AE Plumbing Services

AE Plumbing Services

5672 S Johnson St, Littleton, CO 80123

AE Plumbing Services is a full-service plumbing company serving the Denver, CO area, including Littleton. They provide a range of residential and commercial plumbing repairs such as main line water service repairs, cracked and broken pipe repairs, toilet repairs and installations, and faucet installations. The company emphasizes quality workmanship and clear communication, ensuring customers are informed throughout the process. Their licensed and insured technicians handle new construction projects, tenant improvements, and green plumbing solutions. AE Plumbing Services has built a reputation for professional craftsmanship and offers after-hours assistance when needed.

5.0
301 Reviews
Midwest Plumbing Co. LLC

Midwest Plumbing Co. LLC

8360 Auburn Ln, Westminster, CO 80031

Midwest Plumbing Co. LLC is a plumbing service provider based in Denver, CO, offering a wide range of plumbing solutions. Their services include water heater repair and installation, sump pump repair, sewer line repair with trenchless technology, leak detection, repiping, gas line installation, toilet and garbage disposal repair, and more. The company uses advanced equipment and techniques to address both simple and complex plumbing issues, aiming to provide long-term solutions. They serve residential customers and emphasize careful, tailored service for each home. Midwest Plumbing Co. LLC offers 24/7 emergency plumbing services to assist customers whenever needed.

5.0
260 Reviews
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Common Toilet Problems in Denver Homes

Denver homeowners frequently encounter a specific set of toilet troubles. Understanding these common issues is the first step toward an effective solution.

  • Running or Leaking Toilets: This is often the most frequent complaint, typically caused by a worn-out flapper valve or a faulty fill valve inside the tank. The constant sound of running water is not just annoying; it can waste hundreds of gallons and significantly increase your water bill1 2.
  • Weak Flushes or Low Pressure: A toilet that doesn't flush with enough force can leave waste behind, requiring multiple flushes. In Denver, this is commonly due to mineral buildup from hard water clogging the rim jets or internal passages. It can also be caused by an improperly adjusted flapper or a clogged refill tube2 3.
  • Leaks at the Base: Discovering water puddling around the base of your toilet is a clear sign of a compromised seal. This is usually due to a failed wax ring, which seals the connection between the toilet and the floor drain. A rocking toilet can break this seal over time2.
  • Frequent Clogs and Backups: While an occasional clog is normal, persistent blockages may indicate a deeper issue in the toilet's internal trapway or even the home's main sewer line. This often requires more than just a plunger3.
  • Rocking or Shifting Toilet: A toilet that moves when you sit on it isn't just unsettling; it's breaking its seal and will eventually leak. This is usually caused by loose closet bolts or an uneven floor.
  • Cracks in Porcelain: Hairline or more significant cracks in the bowl or tank often mean a full replacement is necessary, as they can lead to leaks and potential water damage.

Standard Repair Procedures and Replacement Parts

When you call a professional for toilet service, they will diagnose the issue and typically perform one of several standard procedures using common, reliable parts.

For Repairs:

  • Internal Component Replacement: Fixing a running toilet often involves swapping out inexpensive internal parts like the rubber flapper, plastic fill valve (such as a Fluidmaster brand), overflow tube, or tank-to-bowl gasket1 2. These are relatively quick fixes.
  • Resealing the Base: Repairing a leak at the base is a more involved process. The technician must remove the entire toilet, scrape away the old, failed wax ring, and install a new one-often a wax ring with a plastic horn for better guidance-before resetting and bolting down the fixture2.
  • Clearing Blockages: For tough clogs, a professional will use a closet auger (a specialized toilet snake) or, for suspected line blockages, a motorized drain snake or hydro-jetting equipment3.

For Replacements: A full toilet installation involves removing the old fixture, thoroughly cleaning the flange area, setting a new wax seal, carefully placing and securing the new toilet, and connecting the water supply. Modern standards call for water-efficient, low-flow models that use 1.28 gallons per flush (GPF) or less, including dual-flush options that conserve even more water1 2.

Understanding Service Costs in Denver

The cost for toilet services in Denver can vary based on the complexity of the job, the parts required, and the service fees of the provider. Here's a general breakdown based on local data:

  • Minor Repairs: Simple fixes like replacing a flapper or fill valve to stop a running toilet typically range from $120 to $300. This usually includes the service call fee and the cost of small parts1 4.
  • Moderate Repairs: Jobs that require more labor, such as replacing a wax ring and resealing a toilet base or addressing a significant leak, generally fall in the range of $260 to $5301 4.
  • Full Toilet Replacement: Installing a new, standard low-flow toilet, including the cost of the fixture and labor, often costs between $300 and $700 or more. The final price can be higher for complex installations, high-end models, or if unexpected issues with the floor or plumbing flange are discovered1 5.
  • Service Fees: Most professional plumbers charge a service call or trip fee to come to your home, which can start around $49 or more. This is typically separate from hourly labor rates, which in Denver can range from $70 to $120+ per hour5 6.

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Local Factors Influencing Toilet Service in Denver

Two key local factors can impact the frequency and nature of toilet issues for Denver residents:

  1. Hard Water: Denver's water is known for its high mineral content. Over time, these minerals (calcium and magnesium) build up inside toilet tanks, valves, and rim jets. This buildup can cause parts to wear out faster, reduce flushing power, and lead to more frequent repairs or the need for specific descaling treatments1 3.
  2. Aging and Historic Homes: Neighborhoods like Capitol Hill, Baker, and Washington Park feature many beautiful older homes. The plumbing in these properties may involve older pipe materials, such as galvanized steel, or unique layouts that can complicate repairs and replacements. Accessing lines or finding compatible parts for historic fixtures can sometimes increase the scope and cost of a project1 3.

Choosing a Service Provider: What to Look For

When you need toilet repair or a new installation, selecting the right professional is crucial. Look for a licensed and insured local plumber with specific experience in residential toilet service. They should be able to clearly explain the problem, provide a detailed estimate that breaks down parts and labor, and offer a warranty on their workmanship. A reputable technician will also point out if a repair is a temporary fix versus when a full replacement is the more economical long-term solution, especially when dealing with an old, inefficient, or frequently breaking toilet.

The Benefits of Modern, Efficient Toilets

If you're facing a major repair on an older toilet, or simply want to reduce your water usage, opting for a replacement with a modern, high-efficiency toilet can be a smart investment. Today's low-flow models are designed to perform effectively with much less water, which can lead to noticeable savings on your monthly water bill. They also come in a variety of styles and heights (including comfort-height options) to improve both the aesthetics and functionality of your bathroom.

Frequently asked questions

Sources

Footnotes

  1. How Much Does a Plumber Cost in Denver? [2026 Data] - https://www.angi.com/articles/plumber-cost/co/denver 2 3 4 5 6 7 8

  2. Toilet Repair Denver | Leaks & Clogs Fixed - https://www.coloradowaterworks.com/toilets-denver-co 2 3 4 5 6

  3. Navigating Common Plumbing Problems in Denver: What You Need ... - https://www.courtesyplumbingandheating.com/blog/navigating-common-plumbing-problems-in-denver-what-you-need-to-know 2 3 4 5

  4. Toilet Repair Denver, CO - Plumbline Services - https://plumblineservices.com/plumbing/repair/toilet-repair 2

  5. Cost of Plumbing Services in Denver | Pricing Guide - https://professional-plumbers-denver.com/blogs/comparative-pricing-guide-cost-of-plumbing-services-in-denver/ 2

  6. Plumber Hourly Cost Guide - Right Solution Plumbing - https://www.toiletwhisperers.com/blog/plumber-cost-per-hour-on-average/