Marin Mechanical

★★★★☆ 4.3 / 5 (26)
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: 3100 Kerner Blvd Ste B1, San Rafael, CA 94901
: (415) 485-4472
: http://www.marinmechanical.com

Company Overview

Marin Mechanical II, Inc., a local plumbing firm in Marin County, serves both residential and commercial clients. With over 27 years of experience in the plumbing industry, our team has honed its skills. We have built a reputation for quality workmanship, making us one of the top plumbing and hydronic heating contractors in the area. We specialize in a variety of services, including new construction, plumbing, boiler setups, water heater and tankless installations, radiant heating, repairs, and remodeling.

Whether big or small, we tackle every job with commitment. Over the years, our business has expanded, along with our expertise in the plumbing trade. We excel in both large and small projects, prioritizing quality craftsmanship, meticulous attention to detail, and exceptional customer service. We have expanded our specialties to cover residential and commercial plumbing, drain cleaning, water heater and boiler installations, radiant heating, minor electrical work, troubleshooting, and design.

Marin Mechanical is owned by five partners: Mark, John, Tony, Jeff, and Jarrett. In 1993, Mark and John established the business to reflect their dedication to quality and skilled workmanship. With their broad experience in multiple trades, the current owners are exceptionally qualified for the plumbing and mechanical industry. They find fulfillment in running Marin Mechanical, relishing the rewards of hard work, overcoming challenges, and instilling these values in their employees.

Business Services

  • Bathtub installation
  • Bathtub repair
  • Drain installation
  • Drain repair
  • Faucet installation
  • Faucet repair
  • Garbage disposal installation
  • Garbage disposal repair
  • Gas line installation
  • Gas line repair
  • HVAC installation or replacement
  • HVAC system repair
  • HVAC system maintenance
  • Plumbing inspection
  • Plumbing installation or replacement
  • Plumbing repair
  • Sewer installation
  • Sewer repair
  • Shower installation
  • Shower repair
  • Sink installation
  • Sink repair
  • Toilet installation
  • Toilet repair
  • Water heater installation
  • Water heater repair
  • Water pipe installation
  • Water pipe repair

Business Location & Hours



Mon:6:00 AM - 2:30 PM
Tue:6:00 AM - 2:30 PM
Wed:6:00 AM - 2:30 PM
Thu:6:00 AM - 2:30 PM
Fri:6:00 AM - 2:30 PM
Sat:Closed
Sun:Closed

Recommended Customer Reviews

Steve J.
★★☆☆☆

These guys did a small job for me and did it well. It was very pricey, however. Then they came out to check something else out and charged way too much for an estimate. It's too bad because the first work was good. They need to relax a bit and realize that giving estimates is not where they are going to make their fortunes.

Len S.
★★★★★

I can whole heartedly recommend and endorse the work and people at Marin Mechanical. Brandon and his crew as super professional, responsive and genuinely care about providing a great service and quality heating system. I had the misfortune of working with another company that is the polar opposite of Marin Mechanical--I assure you having a competent, qualified, personable and infinitely skilled plumbing crew that know the ins and outs of not only their radiant systems, but have enough knowledge to tease apart the slipshod work of others makes a world of difference. I called Marin in to install a few new loops in our radiant system and move some things around. They discovered that the original installation was flawed, the system not properly sealed so that corrosion was happening and parts were failing, they took them off and showed me the build up. They came out multiple times as these parts failed following the significant rough plumbing, always congenial, always responsive, and tuned the system so that now our house is nice and toasty where as before our bedroom radiant wall units barely could heat the space. If you're considering radiant or you've fallen prey to other less competent companies and are looking for someone to take over and fix their mess, call these guys, you'll be glad you did.

Don B.
★★★★★

These guys know their boilers! I have radiant floor heat in Clayton that was installed by ""Nameless Worthless HVAC Company"" in Dublin eight years ago.

They installed it wrong. I don't know @#$% about boilers...

It was then serviced by another ""Worthless BIG HVAC company"" in Berkeley for the next 8 years. They would come out, replace some parts, charge me a bunch of money and it would work - sort of. The boiler worked, but would heat the house in random locations while other parts of the house would never get over 60 degrees. It also burned a LOAD of propane. They never noticed it was installed WRONG. I just figured that's what it cost. WRONG again.

I decided to find someone who was recommended by the boiler factory.

Brenden came all the way out to Clayton and immediately informed me it was installed WRONG. I have no idea why ""Worthless BIG HVAC company"" never noticed this install failure for 8 years - Oh but they kept charging me to replace parts that didn't need replacing.

My home now heats evenly and stays at a comfortable 71 degrees in the entire house and is just sipping my $2.45 a gallon propane.

Best money I ever spent.

If you have a boiler for heating your home - CALL THESE GUYS.

Tony M.
★★★★★

We had some real problems with the amount of hot water dispersed throughout our recently build house and found our tankless system was too small. Some companies handle the heating but often blamed some issues on the plumbing and suggested I call a plumber - then the plumber suggested I call a heating company when they couldn't solve the issue. Very frustrating and expensive process without results. Jason from Marin Mechanical said they could handle everything and he built-out a new tankless system that really looks like a masterpiece when compared to our previous system. It works great and Jason was very attentive to following up quickly to make adjustments in our system as we broke it in. I would always recommend him to anyone who wants to work with someone who really knows his trade.

Yeshi N.
★★★★★

Marin Mechanical was great! Jason Banks, their technician, was kind and completely competent and didn't try to sell me any extra products.
Wonderful Experience and my boiler works now.! YAY!

Matt S.
★★★★★

Let me start by saying that working with Marin Mechanical was a has been great.

I am wrapping up a project in San Francisco that involved a full renovation of an existing home, and the addition of a 2 bedroom 2.5 bath second unit. The project has taken a little over a year, and during that time Marin Mechanical has been absolutely rock solid from start to finish.

The scope of work for the projects was the installation of two separate radiant heat systems (each containing three heating zones spread through three levels), and two separate boilers for residential hot water.

From the beginning of the estimate process, Brendan and his team could not have been more accessible and professional. The estimate was detailed and accurate, and they were happy to answer all of my question promptly. Over the course of the project if there were any changes to scope of work it was brought to my attention immediately, so there were no surprises in regard to payments.

From the time they laid out the lines prior to the pouring of the concrete slab, to the final install of the thermostats. Marin mechanical always showed up when they said that they would, and we're a great team to have on the job site. They worked well with my schedule, and with the schedule of my other subs.

The quality of their work is outstanding. They went above and beyond to make sure that the lines they pulled, and the pipes they laid, were as clean and well thought as possible. The system has worked flawlessly from the moment they turned it on.

I can not recommend Marin Mechanical highly enough. They are great at what they do, great to have on the job site, and are dedicated to delivering the highest quality work. Hire them and you will not regret it.

Traci B.
★★★★★

We were referred to Marin Mechanical by a radiant heat specialist in San Francisco who was retiring. We made the decision to go with radiant heat because our house is 1,000 sq. ft. and we were expanding to 1,500 sq. ft. but space was still at a premium and we didn't want to take up limited wall or floor space with air ducts, or an air return, or take up space in the garage with a gas furnace and a water heater. We chose a combi-steam boiler to address both needs. It's a small unit that fit on the wall in our garage. It was the right choice and worth the extra money. Brendan at Marin Mechanical was very professional and always available to address our concerns - even while on vacation. We had an unusual malfunction with our Lochnivar unit and Brendan took care of it immediately and got us a brand new unit. He has been great with follow through and we expect them to be around for many years to service the unit. I would highly recommend radiant heat for San Francisco and Marin Mechanical to do the installation and yearly upkeep.

Shree R.
★★★★★

I called Brendan Dunbar of Marin Mechanical after receiving a hearty recommendation from a friend with exacting standards and experience installing complicated mechanical systems. My on-demand water heater which heats both the water for my faucets, as well as for my old world radiator heating system, was overdue for a flush and maintenance. Additionally, I had some specific questions regarding its mechanical health. Brendan was extremely responsive and professional. He provided clear, detailed information about the services provided and was patient with my many questions. He was highly communicative via text, email, and phone and was able to schedule a service appointment within a week of my initial phone call. It gets better: he sent The Fantastic Jason to do the service. Not only was Jason on time for an 8am appointment (this includes slogging through weekday morning traffic from Marin to my Oakland home), he was methodical, incredibly attentive to details and explained them to me clearly and respectfully without a hint of superiority or impatience. He was extremely professional and thorough, and took his time to problem-solve some curiosities the plumbing system was presenting. Additionally, my heating unit is in my attic, so Jason spent a lot of time climbing a not quite tall enough ladder requiring him to lift himself up into the attic space. Jason was good-natured and good-humoured and even willing to go out of his way to purchase a possibly needed part, so as to save the trouble of me scheduling a follow-up appointment. My experience with Brendan and Jason was high caliber, and I recommend their work and expertise enthusiastically.

dan f.
★★★★★

After contacting several heating contractors without timely response or even showing up for appointments, I got in contact with Brendan.
He answered my call, discussed my needs, gave me a rough phone estimate and showed up on time at my home to check out my failing on demand water heater and radiant boiler.
I got a great deal, took 2 men 2.5 days installing a complex
new boiler in a tight space..
Beautiful plumbing job, everything tight and square, work of art..
As a retired electrical contractor, I'm impressed and highly recommend
Brendan and Marin Mechanical.

david c.
★★★★★

Brandon was a huge help. very professional and efficient.
He responded to our call very quickly and diagnosed a leak in the field that would have been otherwise a huge headache to find. Price was very reasonable as well. Will definitely use again.

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