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Castle Master Mechanical LLC

Licensed plumber in Minneapolis, Minnesota

Minnesota DLI licence active5.0(15 reviews)

Castle Master Mechanical LLC holds Minnesota DLI licence PC644806, active, licensed since 25 Jan 2012, rated 5.0 from 15 Google reviews. Bonded with Nationwide Mutual Insurance Company. No complaints on the Minnesota DLI record.

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Request a free quote (612) 868-1569 Google profile Verify #PC644806 on Minnesota DLI BBB profile

Report card

  • Licence activeMinnesota DLI #PC644806, class Plumbing Contractor. Issued 25 Jan 2012, expires 31 Dec 2027.
  • Licensed 15 yrsSince 25 Jan 2012.
  • BondedContractor’s bond with Nationwide Mutual Insurance Company. Minnesota sets the bond by law, $25,000 for electrical, technology systems and plumbing contractors, $15,000 for residential roofers and $3,000 for water conditioning contractors, so every licensed business in a trade carries the same amount.
  • Works aloneExempt from workers' comp: certifies no employees, so nobody else may work on your job.
  • Liability insuredUnited Financial Casualty Company, valid to 9 Aug 2027.
  • No complaintsNone on the Minnesota DLI record.Minnesota DLI record
  • On the BBB, not accreditedIts BBB rating, complaints and reviews are on its Better Business Bureau profile.BBB profile Complaints Reviews
  • 58 building permits since 2020Naming this business as the contractor (City of Minneapolis), most recently 19 Oct 2026.

Checked against the Minnesota Department of Labor and Industry (DLI) register on 4 Nov 2026.

Google reviews

5.0(15 reviews)
Kathryn Quaintance★★★★★ 2 years agoView on Google

Over 6 years with older homes I have had lots of interaction with Brian. I have also referred friends to him who have been pleased with his promptness and honesty and great explanations of what is needed and why. He is very reliable and personable and Linda his scheduler is great!

Bruce Taylor★★★★★ 2 years agoView on Google

Brian has done both large and small projects for us and we have always been pleased with his work. Brian is friendly and personable and has often suggested ways to simplify the job and save us money. I don't hesitate to recommend him to anyone with a plumbing project.

Alec Larsen★★★★★ 3 years agoView on Google

Have used Castle Master several times and will continue to for any and all needs! Brian has done fantastic work and at a great price. Open and honest, and provides options as well as recommended option for any of the jobs I've had done! Highly recommend

RG★★★★★ 3 years agoView on Google

Brian is great! He is honest and creative and does top-quality work. I had a difficult repair in a 100 year old house, and he completed the work much quicker than I expected with a smile and friendly demeanor the entire time. He has always been on-time, and he and his office communicate well.

Drew Raun★★★★★ 5 years agoView on Google

I've used Castle Master several times over the last few years and will continue to use them going forward. Brian does quick, high quality work. He's friendly and professional. I feel like I'm getting good value for my money.

Read all 15 reviews on Google Reviews and photos from Google, 3 Nov 2026.

Recent permits

Building permits pulled under licence #PC644806, from City of Minneapolis open data, which names contractors up to 2 Nov 2026. Locations are shown to ZIP code only.

  • 19 Oct 2026 · Plumbing · Ward 11Replace main water stop, city side of meter.
  • 27 Aug 2026 · Plumbing · Ward 13Connect gas grill inside and out. Air tested.
  • 12 Jun 2026 · Plumbing · Ward 13Replace waste on bath tubs. Update faucets.
  • 29 May 2026 · Plumbing · Ward 13Replace 2 wate and overflows, traps, drain arms to the stack.
  • 29 May 2026 · Plumbing · Ward 12Add basement bathroom. Move floor drain 6. Move water heater location, electric continuous heat type. Not replacing, just moving 3 feet.

Why it ranks #2 of 23 plumbers in Minneapolis

Years licensed weight 3074%
Complaint record weight 25100%
Bond weight 10100%
Google reviews weight 3580%

Score 85.2 / 100. Claiming this listing or using Theo never changes it. How we rank

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