Mammoth Plumbing Heating and Air Conditioning

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About

Mammoth Plumbing, Heating & Air Conditioning delivers massive service with dependable results. We specialize in residential plumbing, heating, and HVAC solutions, handling everything from leak detection and gas line repairs to water heaters, furnaces, and AC systems. Our licensed and experienced technicians show up on time, communicate clearly, and treat your home with respect. We focus on honest recommendations, quality workmanship, and long-lasting solutions — no upselling, no shortcuts. Whether you need an urgent repair, routine maintenance, or a full system installation, Mammoth is built to handle jobs of all sizes with professionalism you can trust. Reliable. Experienced. Mammoth results.

Overview

Serves Commerce City, CO

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License verified

2 employees

2 years in business

Business hours

Sun6:00 am - 8:00 pmMon6:00 am - 8:00 pm

Payment methods

This pro accepts payments via Cash, Check, Credit card, PayPal, Venmo, and Zelle.

Credentials

License verified

Plumber – Master

License state: CO

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Passed by Jeffrey Dunlap on Jan 7, 2026.

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Services offered

Project type

Disposal type

Continuous feed (common)

Batch feed

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Reviews

Exceptional 5.0

10 reviews

5

100%

4

0%

3

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2

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1

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Read reviews that mention:

Past Customer

2 weeks ago

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From Google

Jeff is amazing!! My Heat went out and it was really cold is my house! He worked quickly, efficiently and neatly. He explained everything so it was easy to understand and was very kind and respectful. Im so grateful for the pleasant experience with Jeff at Mammoth!! If you need someone quick and reliable, please call Jeff at Mammoth!!

Past Customer

Dec 22, 2025

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From Google

Past Customer

Nov 27, 2025

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From Google

Past Customer

Sep 13, 2025

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From Google

Jeff at Ace was great to work with. He answered his phone and he was able to come out the same day and take care of the problem without charging us an arm and a leg.

Past Customer

Aug 23, 2025

•

From Google

Called for service and he arrived when he said he would. Repaired AC quickly. Stayed to confirm repair that was made was the only repair needed. I will definitely call in the future when repairs are needed. Thank you!!

Mammoth Plumbing Heating and Air Conditioning

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