Mowbray And Son Inc

What Mowbray And Son Inc does

Mowbray & Son, Inc. is a privately held, family-owned mechanical contracting firm headquartered in Minot, North Dakota, founded in 1916 by Harry Mowbray and Ernest Lewin and now led by fourth-generation President Harry T. Mowbray. The company delivers plumbing, HVAC, geothermal, and custom sheet metal fabrication across residential, commercial, industrial, and government end markets, operating through integrated service divisions including Plumbing & Pipefitting, HVAC & Sheet Metal (under wholly-owned subsidiary M&S Sheet Metal, Inc.), Engineering-BIM, Service Department, Project Management, and Administrative support. Its underlying technical stack centers on Building Information Modeling (BIM) and Virtual Design and Construction (VDC) for design/build, estimating, and off-site prefabrication of ducting and piping, supported by in-house fabrication equipment (coil-line press brake, shears, spot welders, plasma cutting tables) and IGSHPA-certified geothermal installation capabilities.

The company generates revenue through project-based mechanical construction (new builds and renovations) and an ongoing service department handling repair, maintenance, preventative agreements, and emergency dispatch nights and weekends. Go-to-market is enterprise-style field sales augmented by direct service dispatch, with projects acquired through bidding, client relationships, and referrals across central North Dakota. Named customers include Minot Air Force Base (B-52 Maintenance Unit, Control Tower, dormitories), Trinity Health, Minot Public Schools, MHA Nation (Four Bears Event Center, Emergency Operations Center), Ward County Jail, Minot International Airport, McKenzie County, and the NAWS Biota Water Treatment Plant. Pricing is quote-based and not publicly disclosed; free estimates are offered for repair and replacement work.

Mowbray is affiliated with Plumbers & Steamfitters Local #300 and Sheet Metal Workers Local #10, holds OSHA-10, IGSHPA, ASHRAE, PHCC, AGC, and SMARCA memberships, and maintains Department of Labor-registered apprenticeship programs. The firm remains a single-region, single-entity operation with no disclosed subsidiaries beyond M&S Sheet Metal, no external investors, and no public financial reporting.

Name

Mowbray And Son Inc

Legal name

Mowbray & Son Plumbing & Heating, Inc.

Website

https://mowbrayandson.com

Company type

Private

Founded year

1916

Operating status

Operating

Short description

Mowbray & Son is a family-owned mechanical contractor in Minot, North Dakota, providing plumbing, HVAC, geothermal, and custom sheet metal fabrication for residential, commercial, industrial, and government clients across central North Dakota.

Ownership category

akta.pro rank

Product category

Mechanical Contracting Services

NAICS

Plumbing, Heating, and Air-Conditioning Contractors (238220)

akta.pro primary industry

HVAC & Refrigeration Contracting (IMAFALAB)

Keywords

• Mechanical contracting services
• Commercial HVAC installation
• Plumbing and pipefitting
• Geothermal heating systems
• Custom sheet metal fabrication

Headquarters

HQ city

Minot

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Supply Chain, Marketing or Sales, Infrastructure

Revenue model

1. Mechanical Construction Projects: Project-based revenue from plumbing, HVAC, sheet metal, and geothermal installation for new construction and renovation projects. Services range from residential installations to complex commercial and industrial mechanical systems.
2. Service and Maintenance: Ongoing service department revenue from repair, maintenance, and fixture/equipment replacement for residential, commercial, and industrial customers. Includes preventative maintenance agreements and emergency services.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels1 record

Core offering

Mowbray & Son is a mechanical contractor that installs, services, and maintains plumbing, HVAC, geothermal, and custom sheet metal systems for residential, commercial, and industrial customers across central North Dakota. It provides design/build delivery through BIM/VDC engineering, custom in-house fabrication, project management, and a 24/7 service department for repair and preventative maintenance.

Product overview

Mowbray & Son, Inc is a mechanical contractor offering a portfolio of integrated service divisions: Plumbing & Pipefitting, HVAC & Sheet Metal (operating as M&S Sheet Metal, Inc), Engineering-BIM with BIM/VDC capabilities, Service Department for emergency and preventive maintenance, Project Management, Administrative support, and Geothermal Systems. These divisions work together to deliver comprehensive mechanical construction from design through installation and ongoing service for commercial, industrial, and residential projects across central North Dakota.

Differentiator

Problem solved

Functional benefit

Products and services

• Plumbing & Pipefitting Installation, repair, and maintenance of piping systems including hydronic heating and cooling, hot and cold water supply, waste, and drainage systems for residential, commercial, and industrial applications, performed by licensed journeyman plumbers registered with North Dakota.
• HVAC & Sheet Metal Fabrication and installation of heating, ventilation, and air conditioning systems including custom metal fabrication using galvanized, black iron, and stainless steel, operated under the name M&S Sheet Metal, Inc.
• Engineering-BIM Mechanical engineering services utilizing Building Information Modeling (BIM) and Virtual Design and Construction (VDC) for design/build projects, estimating, and prefabrication of ducting and piping systems, delivered by in-house Professional Engineers.
• Service Department Emergency and scheduled repair, maintenance, and replacement services for plumbing fixtures, water heaters, boilers, humidifiers, and HVAC equipment for residential, commercial, and industrial customers, with availability nights and weekends.
• Project Management Project management team coordinating engineers, architects, construction managers, and field personnel to deliver mechanical systems on schedule and within budget.
• Geothermal Systems Geothermal heating and cooling system installation and services with certified installers through the International Ground Source Heat Pump Association (IGSHPA).

Quantifiable outcome

• Prefabrication capabilities reduce installation time through off-site fabrication of ducting and piping
• +1 more outcomes

Named customers8 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• Plumbers & Steamfitters Local #300coreOthersUnion affiliation providing skilled plumbers and pipefitters. Mowbray & Son employs experienced journeyman and apprentices registered with the Department of Labor through this local union based in Minot, ND.
• Sheet Metal Workers Local #10coreOthersUnion affiliation providing skilled sheet metal workers. Supports the HVAC division with experienced journeyman and apprentices working through the sheet metal training program.
• ASHRAEminorOthersProfessional membership in the American Society of Heating, Refrigerating and Air-Conditioning Engineers, demonstrating commitment to industry standards and professional development.
• International Ground Source Heat Pump Association (IGSHPA)minorOthersIGSHPA Installer Certification for geothermal systems installation, providing specialized expertise in ground source heat pump technology.
• PHCC (Plumbing-Heating-Cooling Contractors Association)minorOthersProfessional trade association membership for plumbing and HVAC contractors.
• AGC (Associated General Contractors)minorOthersProfessional trade association membership for general and specialty contractors.
• SMARCAminorOthersIndustry association membership supporting mechanical contractors.

Scale indicators2 records

Recent moves4 records

Expansion highlights2 records

Regional players

• Bowman Mechanical: Regional mechanical services firm providing plumbing, HVAC, and fabrication in a comparable Midwestern geography. Closely mirrors Mowbray's service-department-plus-project-revenue mix.
• Kremer Mechanical: Upper-Midwest mechanical contractor with HVAC, plumbing, and service capabilities similar to Mowbray's full-service positioning. Useful regional comparison for similar-size Midwest mechanical firms.
• Horning Mechanical: Mid-Atlantic mechanical contractor offering HVAC, plumbing, and sheet metal services with comparable residential/commercial/industrial mix. Provides a useful benchmark for a multi-generational regional mechanical contractor.

Broad incumbents

• Comfort Systems USA: Leading national mechanical contractor focused on HVAC, plumbing, piping, and controls for commercial and industrial customers. Operates through regional subsidiaries with a comparable plumbing/HVAC/sheet-metal service mix to Mowbray.
• APi Group: Publicly-traded parent of multiple specialty contracting subsidiaries including mechanical services, fire suppression, and life safety. Competes in the same institutional/government mechanical services vertical as Mowbray.
• Service Logic (Legence): Private-equity-backed national provider of mechanical, electrical, plumbing, and energy services for commercial buildings. Overlaps with Mowbray's HVAC, plumbing, and service-department capabilities across institutional customer segments.
• EMCOR Group: Fortune 500 mechanical and electrical construction services firm offering HVAC, plumbing, and building services nationally. Competes for the same institutional/government project types Mowbray serves, but at vastly larger scale and broader service portfolio.

Direct peers

• Limbach Holdings: Publicly-traded specialty mechanical contractor with HVAC, plumbing, and building systems services across multiple U.S. regions. Closest direct analog to Mowbray's integrated mechanical contracting model, though at materially greater scale and geographic breadth.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/MowbrayandSon
• LinkedInlinkedin.com/company/mowbray-and-son-inc

Compliance10 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Mowbray And Son Inc