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    Verified sump pump installation services reviews

Top-Rated Sump pump installation pros in Longmont - Updated Nov 2026

Avatar for Waterworx Plumbing
Waterworx Plumbing
4.8(
99
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Longmont, CO and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

Waterworx Plumbing is a fully licensed and insured plumbing company with over 25 years of experience. We offer flat rate fees for small routine jobs but in most cases we charge a $92 trip charge and a $92 one hour minimum. An estimate is always free and provided up-front. Our technicians not paid on commission and are always on time!. We provide excellent service to all of our customers whether you're a first-time or a lifelong customer! We value your time as well as ours and strive to complete each job in that fastest time possible while maintaining the highest quality work!

2 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Compass Plumbing
Compass Plumbing
5.0(
33
)
Sump Pump - Repair or Replace

Serving Longmont, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2002

Free estimates

Warranties offered

"Jay immediately answered my inquiry and provided same-day service. He thoroughly explained what he was going to do and got the job done fast. His pricing was much better and service was faster than going through the big brand companies. I am incredibly satisfied and will be keeping Jay's card around for future plumbing repair needs."
Water Heating Systems
Navien Boiler
Response time2 hrs
Response rate96%
1 neighbors recently requested a quote
Avatar for Precision Plumbing Heating Cooling Electric
Precision Plumbing Heating Cooling Electric
4.5(
198
)
Sump Pump - Repair or Replace

Serving Longmont, CO and surrounding areas

Approved

In business since 1982

Warranties offered

Credit card accepted

"Precision installed my water heater two years ago. When I had my furnace serviced, the technician checked the pressure on the water heater and it was very high, a component had failed. A plumber from Precision came out and replaced the defective part since it was under warranty. He suspected that a water pressure regulator may have to be installed but when he checked the water pressure coming into the house, it was in the acceptable range. He could have just as easily told me I needed this and it would have cost me $600 but Jacob was an honest man. I am so impressed with his integrity. I will use them again in the future for sure. The replacement of the defective part didn't cost me anything. Thank you Precision for being an honest company."
Response time6 days
20 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for 1st Action Plumbing Heating and Air, Inc.
1st Action Plumbing Heating and Air, Inc.
4.6(
153
)
Sump Pump - Repair or Replace

Serving Longmont, CO and surrounding areas

Approved

In business since 2017

Free estimates

Small jobs welcome

"Got 3 quotes, 1st Action was considerably less. I called to verify that the quote was correct, no add on, or hidden fees. The quote was correct. Installers took time to explain everything about the furnace on installation, operation, and concerns that I had. Installers cleaned up after the installation and removed the old furnace. They did a great job. The estimator was also the installer."
Navien Tankless
Lennox EL296V
Response time5 hrs
6 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Rooter Guy, LLC
Rooter Guy, LLC
4.6(
3,131
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Longmont, CO and surrounding areas

Approved

Super Service Award Winner

In business since 1995

Free estimates

Emergency services offered

"Rooter Guys installed a sump pump in my basement after we began experiencing flooding. They rearranged their schedule in order to fit us in sooner given the urgency of the project. They were professional, hardworking and kept us informed throughout the process."
sewer cleaning
1287 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Afford-A-Rooter
Afford-A-Rooter
4.4(
138
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Longmont, CO and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"Took twice as long and cost three times as much as we had originally thought but the work appears to have been done well and not being a plumber I really had no logical basis for my estimates."
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+7

Response time5 days
Response rate100%
2 neighbors recently requested a quote
Avatar for Rocky Mountain Plumbing & Drains LLC
Rocky Mountain Plumbing & Drains LLC
4.9(
26
)
Sump Pump or Interior Foundation Drains - Install

Serving Longmont, CO and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"I knew I needed my sewer to be done. I had 3 estimates and this company was fantastic! The quote was fair. Rocky Mountain is professional and trust worthy. Thought it was going to be a few day project. They got it done in one day and back in service! If you?re having drain or plumbing issues. Please call Rocky Mountain plumbing!"
Interior Sewer replaced
Interior Sewer replaced
Interior Sewer replaced
Interior Sewer replaced
Interior Sewer replaced

+1

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Sump Pump Installation FAQs, answered by experts

A sump pump battery backup can typically run for 6 to 24 hours. The factors that affect its runtime include the battery capacity and pump usage. 

When purchasing your backup system, take these factors into consideration to determine which system is best for your home. If you live in an area with frequent and long-lasting power outages, consider a longer-lasting backup battery.

Yes, many providers offer warranties for new pumps and labor. Confirm terms before scheduling.

Start by calling a plumber if you want to install a sump pump battery backup. Talk to them about your situation and needs. Sometimes, electricians or waterproofing contractors will install a battery backup, and in that case, the plumber you call should be able to point you in the right direction.

Sump pump repairs are typically handled by plumbers or waterproofing specialists who are experienced in handling basement and foundation-related issues. Plumbers can address issues like clogs, electrical problems, and mechanical failures, and waterproofing professionals may be ideal if the sump pump is part of a larger drainage or waterproofing system. 

Some people may also call on a general handyperson for minor sump pump repairs. However, for complex problems, hiring a certified plumber or waterproofing expert ensures the work is done correctly and prevents further issues.

Yes, you can add a battery to your existing sump pump. There are batteries available that can be plugged into your existing system; however, most battery backups come as a complete system and act as a replacement for your existing sump pump.

The Longmont, CO homeowners’ guide to sump pump installation services

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