Rated 3.5 / 5 from 10 reviews
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Mark III Construction In 1976 Mark and Tim O'Brien founded Mark III Construction as an electrical contracting company, as the brothers were electricians by trade. But their vision didn't stop there. They sought ways to eliminate duplication of costs and work efforts on construction sites. And they wanted to prevent the "silo" way of doing business in which each individual trade is performed by a different company.

To more fully serve their customers, the O'Briens created a business strategy where the different trades work together as one team to share resources, cut redundancies, diminish conflicts, and implement faster completion schedules.
Services
Plumbing
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Mark III has provided plumbing services of all kind for decades. We employ the best plumbers who understand what it takes to provide excellent customer service in the construction industry. We provide water and gas systems, commercial kitchens, core restrooms, and everything in-between for complete plumbing.
HVAC
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Your HVAC system running at its top performance results in energy savings that are important to a client's bottom line, the environment, and regulatory entities. Mark III provides a level of service focusing on maximum efficiency and saving money through proper sizing of units, preventive maintenance and efficient design.
Videos
Time lapsed video of a lift station drilling operation, conducted by Mark III Construction, at UC Davis.
Reviews (10)
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DragonNF
Dec 17, 2020
Pretty subpar work. Lots of things needed to be gone back over and fixed.
Eric Mays
Aug 05, 2019
Great place to work for because they care about family the pay is good and many opportunities for growth.
Jack Mathis
Jul 21, 2018
Mark three is stupid. They contract out a temp agency called Aerotek to provide employment instead of hiring directly. The worker gets paid less so a guy in an office can work in comfort. Forcing employee to jump through more hoops and have more bosses. Aerotek doesn't hire professional people and safety is over looked drastically. Hire directly, it's called Craiglist or Indeed. The worker should be making all the money.
Justine Herbst
Jun 03, 2017
High quality, great service and competitively priced. My go to contractor.
Joe Mateo
Jul 19, 2016
Don't recommend anyone to this company period. They don't do things the right way for most just a waste of time.
Leslie Schlaegel
Jul 07, 2016
Great company with an awesome team! I wouldn't want to be anywhere else.
D. C.
May 30, 2016
Mark III has serviced our plant for over 12 years. They are our number one vendor and keep us running no matter what the problem. We have over 300 employees that count on the Mark III employees to keep the plant up and running. The only downside I have experienced with the Mark III is the delayed response time for service calls on the weekend. They have said they are working to increase their off hours service team.
Clay Allison
Nov 01, 2015
Mark III has serviced our plant for over 12 years. They are our number one vendor and keep us running no matter what the problem. We have over 300 employees that count on the Mark III employees to keep the plant up and running.
Blake Krajewski
Aug 07, 2015
Awful company and dishonest management. Steer clear and take your business elsewhere!
Bravo Mays
Dec 23, 2013
This company has done a good job for us for years. We open different businesses around the Sacramento area and we have Mark III do all the work for us. They are great general contractors. We will be using them for a long time to come.