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Top-Rated Drain clog or blockage clearers in Merrimack - Updated Nov 2026

Avatar for Ferris Plumbing, Heating & Air
Ferris Plumbing, Heating & Air
4.9(
58
)
Drain Clog or Blockage - Clear

Serving Merrimack, NH and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"We reached out to Matt regarding a leak in our downstairs bathroom and issues with the drain. It was a bit difficult to find someone willing to squeeze us in on short notice but he worked with us and stopped by the very next day. Not only did he resolve the issue but he also replaced our dated cast iron tub which we had been wanting to do since purchasing the home. He works very efficiently while also paying close attention to the smallest detail and making sure to address all questions and concerns. I would %100 recommend his work without hesitation."
Various Remodel Jobs
Various Remodel Jobs
Various Remodel Jobs
Various Remodel Jobs
Various Remodel Jobs

+24

37 neighbors recently requested a quote
Recommended by78%of homeowners
Avatar for BK Sewer & Drain Services
BK Sewer & Drain Services
5.0(
6
)
Drain Clog or Blockage - Clear

Serving Merrimack, NH and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Bright knows exactly what he's doing and how to fix a major plumbing issue. Very professional, prompt, has very clear communication, is hard working, very hard working, and personable. He has the proper equipment do diagnose and fix the problem in a timely manner. His knowledge of plumbing is also exemplary. It was a pleasure doing business with him and will hire him for future jobs. Thank you Bright!"
Response time3 hrs
Recommended by100%of homeowners
Avatar for Grand Voyage Plumbing and Heating
Grand Voyage Plumbing and Heating
5.0(
61
)
Drain Clog or Blockage - Clear

Serving Merrimack, NH and surrounding areas

Approved

In business since 2017

Emergency services offered

Warranties offered

Grand Voyage Plumbing and Heating is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. We have accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Water Heater
Water Heater
4th of July Savings
Gas Furnace
GE Air Conditioner

+1

7 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Barrington Solutions Plumbing & Heating LLC
Barrington Solutions Plumbing & Heating LLC
4.9(
17
)
Drain Clog or Blockage - Clear

Serving Merrimack, NH and surrounding areas

Approved

In business since 2024

Free estimates

Small jobs welcome

"I finally got to build my dream garage to store all my tools and have a cool hangout on Friday nights with the boys n a couple coors. Chris came and did everything from the bathroom and the heating system. I will definitely be calling him back to add a mini split in the future. He was professional, punctual and clean. Very knowledgeable you can tell he cares about his clients."
Granite Ridge
Brook hill development
Sanborton
Derry
2.5 bathroom modular

+39

41 neighbors recently requested a quote
Avatar for Daigle Plumbing Heating and Cooling
Daigle Plumbing Heating and Cooling
4.4(
43
)
Drain Clog or Blockage - Clear

Serving Merrimack, NH and surrounding areas

Approved

In business since 1981

Free estimates

Credit card accepted

"Justin was amiable and solved a leak on a new bidet I had installed myself. He also cleared the drain clog. I did think it was pricey for the minor work. Not sure if this is typical price as this was the first time I had to call a plumbing company ever and since it was an emergency I didn’t shop around. Service was great. On the fence about the price."
9 ZONE On Boiler
3 Zone Boiler
4 Zone Boiler with storage Tank!!!
Oil Tank
6 Zone Boiler W/Storage Tank

+12

Response time1 day
108 neighbors recently requested a quote
Recommended by63%of homeowners
Avatar for Mr. Rooter Plumbing & Heating
Mr. Rooter Plumbing & Heating
3.9(
358
)
Drain Clog or Blockage - Clear

Serving Merrimack, NH and surrounding areas

Approved

In business since 1995

Emergency services offered

Warranties offered

"as wonder as my experience was I was thinking that someone could find it very heartbreaking at todays prices for people on disability or retired on fixes income. But the service was great and done quickly."
64 neighbors recently requested a quote
Recommended by87%of homeowners
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FAQs for drain clog or blockage clearing projects in Merrimack, NH

Snaking a simple clog near a tub, toilet, or sink often takes about five minutes. Deeper blockages along the main line can stretch the job to a few hours because the pro must feed extra cable and may need a camera to confirm the pipe is clear. Either way, specialized tools help pros work quickly and keep your drains running for the long haul.

Aggressive snaking can scratch pipes, push debris deeper, or even crack older lines. That risk is low with an experienced plumber who matches the cable size to the pipe and eases the snake through bends instead of forcing it. If you’re unsure of your technique—or your pipes are already fragile—calling a licensed pro is the safest, and often cheapest, move.

Start with simple barriers: mesh screens on every tub, shower, and sink keep hair, food bits, and jewelry out of the pipes. Skip harsh chemicals; a monthly flush with hot (not boiling) water clears light buildup without damaging plastic lines. Finally, practice smart disposal—no grease, wipes, or kitty litter down the drain—and schedule routine cleanings if you have older plumbing.

Roto‑Rooter typically charges a flat $160 to $450 for standard snaking, which may include a quick sewer inspection and basic clean‑out. Exact pricing depends on the clog’s location and complexity. Repairs or part replacements fall outside that flat fee, so ask for a line‑item estimate if your tech spots broken pipe sections or recommends additional work.

Most liquid cleaners rely on caustic chemicals that eat through hair and grime—but they also erode metal and even some plastics over time. Repeated use strips protective pipe coatings and can leave you with leaks or premature failures. If hot water or a plunger doesn’t help, call a plumber for mechanical removal instead of pouring more chemicals down the line.

The Merrimack, NH homeowners’ guide to drain clog or blockage clearings

From average costs to expert advice, get all the answers you need to get your job done.