United Mechanical

What United Mechanical does

United Mechanical is a privately held mechanical contracting firm founded in 2003 and headquartered in San Jose, California, with four regional offices spanning Northern California (San Jose, Alameda, Rohnert Park, and West Sacramento). The company designs, constructs, retrofits, services, and provides 24/7 emergency response for HVAC and plumbing systems serving commercial and industrial property owners, developers, general contractors, and property managers. United Mechanical ranks among the top 5 mechanical contractors in Northern California by annual revenue and is qualified as a union contractor with California Contractor's License No. 828335.

The company's core technical capabilities include in-house 3D/BIM modeling, CAD-CAM fabrication, and a 100,000+ SF production and warehouse facility in San Jose that supports pre-fabrication of plumbing, piping, sheet metal, and welded specialties. Service delivery spans design-build, design-assist, and plan-spec project models, with 25+ in-house design and professional engineers, LEED certification expertise, energy modeling, and specialized capabilities in high-purity RO/DI systems, laboratory gas systems, clean rooms, vivariums, and large-tonnage chiller service across all major OEM brands. Diagnostic capabilities include thermal imaging, sewer line video inspection, hydro jetting, and predictive failure analysis.

United Mechanical generates revenue through two primary channels: lump-sum construction contracts for new builds and major renovations (HVAC and plumbing construction), and recurring service contracts plus time-and-materials service calls for preventive maintenance, repair, retrofit, and 24/7 emergency response. Marquee clients include Google, Genentech, Cisco/CBRE, CoreSite, Stanford, Kaiser Permanente, Broadcom, AMD, Uber, and Micron, with deep concentration in technology, life sciences/biotech, and data center/mission-critical verticals. The go-to-market is B2B enterprise field sales via competitive bidding with major general contractors and direct service relationships with property owners and managers, supported by dedicated account managers and dedicated 24/7 phone lines (866-SERV-UMI).

Name

United Mechanical

Legal name

United Mechanical

Website

https://umi1.com

Company type

Private

Founded year

2003

Operating status

Operating

Headcount range

251–500 employees

Short description

United Mechanical is a top-5 Northern California mechanical contractor founded in 2003, specializing in HVAC and plumbing design, construction, service, and 24/7 emergency response for commercial, industrial, data center, biotech, and technology clients.

Ownership category

akta.pro rank

Product category

Mechanical Contracting Services

NAICS

Plumbing, Heating, and Air-Conditioning Contractors (238220), Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance (8113)

akta.pro primary industry

HVAC & Refrigeration Contracting (IMAFALAB)

akta.pro secondary industry

Industrial/Process Piping & Mechanical Contracting (IMAFALAG)

Keywords

• HVAC construction services
• Plumbing construction
• Mechanical contracting
• HVAC maintenance services
• Commercial plumbing services

Headquarters

HQ city

San José Casas Caídas

HQ country

Mexico

HQ region

Latin America

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. HVAC Construction Services: Design, construction, and installation of HVAC systems for commercial and industrial buildings, including plan-spec, design-assist, and design-build project delivery. Revenue generated through lump-sum construction contracts for new builds and major renovations.
2. Plumbing Construction Services: End-to-end plumbing systems design and installation for commercial and industrial properties, including high purity RO/DI systems, laboratory gases, and complex piping systems.
3. HVAC Service and Maintenance: Preventive maintenance, repair, retrofit, replacement, and modernization services for commercial and industrial HVAC systems. 24/7 emergency response with state-of-the-art diagnostic tools and fully stocked service fleet. Revenue from recurring service contracts and time-and-materials service calls.
4. Plumbing Service: 24/7 emergency plumbing response, drain cleaning, hydro jetting, sewer line inspections, backflow testing, boiler service, water heater services, and comprehensive plumbing repairs for commercial properties. Revenue from service contracts and per-job service fees.
5. Large Tonnage Services: Specialized maintenance, repair, overhaul, and modernization services for large tonnage cooling equipment including centrifugal, screw, and large chassis recip chillers. Includes refrigerant management, control systems upgrades, energy optimization, and major system replacement with turnkey project management.

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

United Mechanical is a mechanical contracting firm that designs, constructs, retrofits, and services HVAC and plumbing systems for commercial and industrial properties throughout Northern California. The company delivers projects via plan-spec, design-assist, and design-build models supported by 25+ in-house engineers, a 100,000+ SF CAD-CAM fabrication facility in San Jose, and a 40+ member service department. It also operates a 24/7 emergency response operation with a 2-hour-or-less dispatch commitment across the Bay Area.

Product overview

United Mechanical is a mechanical contracting service company offering integrated HVAC and Plumbing systems design, construction, retrofit, repair, and 24/7 emergency service for commercial and industrial properties. The company operates with a unified service model combining HVAC Construction, Plumbing Construction, HVAC Service, Plumbing Service, Large Tonnage Services, Commercial Tenant Improvements, and 24/7 Emergency Response as interconnected service lines. All offerings share unified project delivery teams, in-house engineering and fabrication capabilities, and a single-source accountability approach for the complete lifecycle of mechanical systems.

Differentiator

Problem solved

Functional benefit

Products and services

• HVAC Construction
• Plumbing Construction
• HVAC Service
• Plumbing Service
• Large Tonnage Services
• Commercial Tenant Improvements
• Chiller HVAC Service & Repair
• HVAC Boiler Service & Repair
• HVAC Retrofitting Service
• 24/7 Emergency Service

Quantifiable outcome

• Top 5 ranking among mechanical contractors in Northern California by annual revenue
• +4 more outcomes

Named customers23 records

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Three partnerships are on record, tiered minor.

• Mechanical Contractors Association of America (MCAA)minorOthersUnited Mechanical is a proud member of MCAA, the leading trade association for mechanical contractors. Membership provides access to industry resources, best practices, training, and networking with peer contractors across the United States.
• CSG (Contractors Sales Group)minorOthersUnited Mechanical is listed as a proud member of CSG, a contractors' purchasing and marketing organization providing group buying power and vendor relationships for mechanical contractors.
• ISN (ISNetworld)minorOthersUnited Mechanical is a member of ISN and holds a letter grade of 'A'. ISN provides an online contractor management database that collects health, safety, procurement, quality, and regulatory information to meet governmental record keeping and Owner Client requirements. United Mechanical has fulfilled necessary requirements to work with Healthcare/Pharmaceutical, Facilities Management, and Manufacturing partners.

Scale indicators9 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• ACCO Engineered Systems: Large Western U.S. mechanical contractor offering HVAC, plumbing, and process piping design-build and service across California and other western markets. Highly comparable in service mix (HVAC + plumbing + service), customer base (tech, biotech, healthcare), and design-build delivery model.
• Southland Industries: One of the largest privately held MEP contractors in the U.S., with full-lifecycle HVAC, plumbing, and mechanical services and significant Bay Area / Northern California presence. Directly comparable on design-build delivery, fabrication capabilities, and mission-critical / life science specializations.
• Limbach Holdings: Public mechanical contractor focused on HVAC, plumbing, and building services for commercial, institutional, and mission-critical customers, with strong West Coast operations. Closely comparable business model — design-build construction plus recurring service — and customer overlap in healthcare, data centers, and higher education.
• Mesa Energy Systems (EMCOR Group subsidiary): EMCOR's California-focused mechanical services subsidiary providing HVAC, plumbing, and process piping for commercial, industrial, and data center clients. Directly competes with UMI for similar design-build and service work in California.

Broad incumbents

• EMCOR Group: Public Fortune 500 mechanical and electrical construction and facilities services firm with national scale. Competes with UMI through subsidiaries (Mesa, FCI) on commercial and mission-critical projects, but at significantly larger scale and broader geographic footprint.
• Comfort Systems USA: Public national mechanical contractor providing HVAC, plumbing, and related services through operating subsidiaries. Overlaps with UMI on commercial mechanical contracting and service but operates nationally through many regional operating companies.
• Carrier Global: Global HVAC OEM and service provider with a meaningful commercial service and replacement business. Competes with UMI on chiller / large-tonnage service and retrofit work, but as an OEM-backed incumbent rather than an independent contractor.
• APi Group: Public safety, specialty, and industrial services holding company with mechanical services exposure via subsidiaries. Provides adjacent services in life safety, HVAC, and specialty contracting with overlap on data center, healthcare, and industrial customers.
• Johnson Controls: Global building technology and HVAC OEM with substantial service and retrofit operations. Competes with UMI for chiller service, building automation, and large HVAC retrofit work at enterprise customers across data centers, healthcare, and commercial real estate.

Regional players

• Cupertino Electric: Large privately held Bay Area electrical and mechanical contractor serving data centers, commercial, and industrial customers. Adjacent rather than direct competitor (more electrical-heavy) but highly comparable on Bay Area footprint, tech / data center customer base, and design-build delivery.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCjwqC9Rlrqod7He3jroSnYw?view_as=subscriber
• LinkedInlinkedin.com/company/united-mechanical
• Instagraminstagram.com/united_mechanical_
• Xx.com/umihvac
• Facebookfacebook.com/unitedmechanicalinc

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

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 United Mechanical