Mammoth Construction LLC

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Introduction

We provide exceptional remodeling services from the start of your job to the end. Our crew is deeply focused on detail, communication and setting clear expectations. Whether it’s a bathroom, kitchen, basement or full home renovation our goal is to turn your house into Your home.

Overview

Hired 13 times

Background checked

License verified

10 employees

5 years in business

Business hours

SunClosedMon8:00 am - 5:00 pm

Payment methods

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

Projects and media

73 photos

Projects and media

73 photos

Reviews

Customers rated this pro highly for work quality, professionalism, and responsiveness.

Very good 4.6

10 reviews

5

90%

4

0%

3

0%

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1

10%

Shelly M.

Aug 6, 2024

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Hired on Thumbtack

Very easy to communicate with. He did a fantastic job and he was very courteous, he made sure he cleaned up his mess completely and that I was ok with the work

Details: Kitchen • Wall • Backsplash • Crumbling, stained, or missing grout

Tile Repair

Berkeley A.

Feb 24, 2024

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Hired on Thumbtack

A contractor from Mammoth came out to look at some water damage we had. He was very generous in walking me through how I might fix the damage myself, including sending me links to all the products I would need. He was respectful and informative.

Details: I'm just starting • Bathroom • Replace parts of existing structure • Less than 500 sq ft • Home

General Contracting

Andrey R.

Jun 4, 2025

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Hired on Thumbtack

Absolutely terrible and rude. Avoid unless you're an engineer capable of construction project management, and ready to babysit David and his crew every day. Those folks should have their license revoked. They know nothing about joist span tables. They don't know which fasteners to use and will try to use lowest gauge and shortest nails. They don't know that there are different types of screws for fastening different materials. They don't know how to frame properly - some wall framing will be attached to roof's OSB rather than to rafters. Shingles will be nailed anywhere up to 5 inches above and below the nailing line. Hired them to build a new roof, ended up with water damage of the main level ceilings, and some holes in the ceiling as someone stepped on it from above. Instead of apologies I received an offer to roughly fix it with plaster and patch paint, without full repaint of the ceiling. They had to redo shingles and hired subs for pretty much anything besides framing. Mammoth doesn't hire pros but relies on friends and family to do the project. So don't be surprised if wife of David's brother will be working on your project. David will disappear once the project is half-done and will switch to another job. He will also stop responding phone calls and will tell you that your calls don't get through. I guess they can probably build you a flower bed or a fence, maybe pour concrete. Never hire them for anything more complex than that.

Details: Complete plans or drawings • Replace parts of existing structure • 1,000 - 1,500 sq ft • Home • I am the owner

General Contracting

Jason B.

Jun 27, 2022

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Hired on Thumbtack

Mammoth construction did some engineering work and basement plans for me and I was very happy with the documentation level of detail provided.

Details: Residential • 1,001 - 1,500 sq. ft. • Yes, I will be modifying or adding living space to my basement • Yes, my basement finishing or remodeling project will require electrical or plumbing work • No existing plans, but have a good idea of what I want

Basement Finishing or Remodeling

Melanie B.

Jan 11, 2022

Mammoth Construction did a great job on the remodeling they did in my home. The work they did is very satisfactory to me. They fulfilled my requests. They made sure I was pleased with the upgrades before the work for them was considered complete.

Credentials

License

License Type: B100 – General Building Qualifier (UT)

License verified on 3/25/2024

Background Check

David Christensen

FAQs

What should the customer know about your pricing (e.g., discounts, fees)?
We are flexible in working with a customer to find the right grade of finish for their project for a decent price.
What types of customers have you worked with?
We’ve worked with all kinds of customers and all kinds of different home needs. From custom cabinets to pre built, low end fixtures to the top of the line, basements needed to rent to custom in home gyms and offices. If you can dream it, or you need, it we can build it.
What advice would you give a customer looking to hire a provider in your area of work?
Find someone that will articulate each line item involved with your job so you know your options.

Mammoth Construction LLC

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