Mighty Plumbing and Heating LLC
“I don't believe this is the cheapest company to work with but the charge was very fair and the quality of the work was drastically better than the company who installed the previous unit.”
Best Drain Cleaning Services in Denver, CO
24 contractors listed · 23 in Denver · 12 open 24/7 · 21 open weekends · 23 rated 4.5+
Data verified October 27, 2026
Time Plumbing
“Nathan came out within a couple of hours, saw the issue and a couple more, corrected them, replaced the disposal, and again, the cost was very reasonable.”
Doctor Fix-It Plumbing
“Fix-it you get fully licensed and accredited professionals with the right tools and parts, not a dodgy unknown driving a used pickup who doesn't know AC from DC.”
Rooterguy Llc
“They've taken care of all of my plumbing needs from a fresh install of all of my water lines, to a tankless electric water heater and a water softener, to taking care of my sewer line.”
Squeaks Plumbing Heating & Air
“Sean arrived on time-valves for irrigation system was leaking in 3 places-replaced it the same day and reviewed everything with me before he left-very friendly and professional- he was great!”
A Better Plumber (An Absolute Plumbing Company)
“A little snafu with the scheduled day getting switched was made up for with the thorough and surprisingly fast service from our technician JD getting our new drain in.”
The 24 companies listed for Denver, CO clear blocked drains and sewer lines. Hours, jetting and camera work, and free estimate claims come from each company's own website. Ask who carries their own jetter rather than subcontracting it before you book.
Area overview: Denver, CO
23 of the 24 contractors we list are based in Denver; the other one does not publish an address. The contractors on this page are rated from 4.2 to 5.0 across 37,386 reviews; 19 have 50 or more reviews and 23 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (91%), quality (81%) and responsiveness (80%). The topics that come up most in reviews of the contractors on this page are "price", "estimates" and "efficient". 12 are open around the clock; 21 are open on Saturdays and 15 on Sundays. The services the contractors on this page list most often on their websites are drain cleaning (4), emergency plumbing (2), gas lines (2), hydro jetting (2) and sewer repair (2). 10 show a license on their websites and 7 have a BBB rating of A or A+. 18 have ten or more years of experience, the longest 39 years. 13 offer emergency call-outs; 11 offer financing or payment plans; 7 give free estimates; 10 are family- or locally-owned and 12 list coupons or special offers. We count these figures across the contractors on this page; distances are straight-line, and hours and prices change, so confirm the details with the contractor before you book.
What can I learn from these companies' websites?
A website is linked by all 24 listings for Denver. Look for two things: whether they own a jetter and a camera or hire them in, and whether they show repair work as well as cleaning. A company that only cables will keep coming back for the same line.
King Rooter & Plumbing
“After spending several hours trying to clear the drain Jonathan also indicated there may be a need to replace the copper pipe but wanted to try cleaning with a water jet.”
Proactive Sewer & Drain
“After receiving the report I had some additional questions, but Phil took the time to really explain their recommendation and make sure that all of my questions and concerns were addressed.”
Golden West Plumbing
“Soooooo I call Friday, Kiley jumps through hoops finds the pads and rearranges her teams schedules, Max jumps through hoops and shows up at my home at 4:30 and by 5:30 his work is done and the swamp cooler is blowing cool air.”
Sveagle Plumbing
“Steve cane out on time and did a great job removing the pedestal sink and replacing it with a vanity and new faucet as well as removing vulnerable fail points in the water lines.”
High 5 Plumbing
“This company showed up when they said they would and does great work (not the first time I have used them) The only complaint I have is they charged me over 600.”
Professional Plumbers Denver
“I first spoke with Christian on the phone and he provided incredible customer service by answering my questions and demonstrating patience + knowledge.”
Applewood Plumbing Heating & Electric
“He is very professional, explains and communicates great throughout the work process - replacing a water heater, installing a pressure reducing valve besides replacing a Sewage Ejector pump.”
Heart Heating
“We have now used HEART twice for major repairs/upgrades… when we need a repair or maintenance, we get a professional technician and we can always get an appointment the same week , repairs are done quickly, even the same day if time allows!”
Hyper Flow Service Company
“Unfortunately, I didn't call them first because another company (Rooter Anywhere) tried to charge me $1750 to run high pressure water through the pipes.”
Master Blaster Plumbing & Drain LLC
“Bailey at Master Blaster was the first friendly person to finally help me, they were able to send out a great tech within days to look at my situation.”
Triple S Sanitary Sewer Services LLC
“I have used them multiple times from my residential properties, and commercial, they have been able to resolve all of my fears and drain issues and put them to ease.”
Hurricane Drain
“They were the only company I found that actually has someone who answer the phone, rather then just a voice message, so I was able to quickly schedule an appointment and get a quote on the phone.”
Aaark Heating
“The original installation company did not respond satisfactorily, so on 1/4/2022, after a work associate suggested calling AAARK, I had a phone conversation with Michael about the situation.”
Foster Plumbing
“I am the Chief Building Engineer of several commercial office buildings in the Denver Tech Area, and we have had nothing but success with Foster Plumbing.”
Plunge Plus Llc: Plumbing Service
“Not only were they the best price they were able to move stuff around and was out here on Saturday at 9am digging up our pipe and replaced it within a couple hours and had our systems up and running again.”
Tipping Hat Plumbing
“I'm grateful for the work they did in our house, the efficient & helpful information they provided through the entire process & how they went above & beyond to make sure we were satisfied with the work needed!”
Cap Hill Plumbing
“Sasha and his team not only performed the review and repair work requested with honesty and professionalism, they also coordinated an entire bathroom remodel from start to finish.”
Synergy Mechanical Services
“Great people to do business with.”
Why these companies made our list
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