Interstate Mechanical Contractors, Inc.
Interstate Mechanical Contractors is a family-owned Knoxville, Tennessee mechanical contracting firm providing commercial HVAC, plumbing, pipe and sheet metal fabrication, 24/7 service, and preventive maintenance to institutions, healthcare, manufacturing, and commercial facilities across East Tennessee, Kentucky, and North Carolina.
- Company typePrivate
- Founded1982
- HeadquartersKnoxville, United States
- Headcount101–250
- GTM typeB2B
- OfferingServices
What Interstate Mechanical Contractors, Inc. does
Interstate Mechanical Contractors, Inc. (IMC) is a family-owned mechanical contracting firm founded in 1982 in Knoxville, Tennessee. The company provides full mechanical construction services — HVAC, plumbing, piping, millwright, and site utilities — for commercial and industrial facilities across East Tennessee, with additional licensure in Kentucky and North Carolina. IMC performs 92% of its work in-house, supported by vertically integrated pipe and sheet metal fabrication shops operating since the late 1980s, equipped with Duct-o-matic coil lines, computer-driven plasma-arc cutting, and orbital welding capabilities plus 3D CAD/BIM coordination.
Revenue is generated across four primary streams: large commercial construction projects ($500 to $10 million, with the majority of work falling in the $20,000-$350,000 range), smaller Special Projects ($1,000-$100,000), 24/7 commercial service and repair, and subscription-based preventive maintenance programs that reportedly reduce facility operating costs by 10-15%. Projects target institutions, schools, government, healthcare, manufacturing, churches, hotels, office, and retail facilities. In 2016, the service division was spun off into a separate subsidiary, Interstate Mechanical Service, LLC (IMS), which delivers 24/7 HVAC, plumbing, controls, and energy conservation services under a Siemens Certified Solution Partner arrangement. Proprietary offerings include Discovery Sound Technology (DST), a cloud-based predictive diagnostic platform exclusive to East Tennessee.
The company is led by Terry Self (Chairman and CEO, with the firm since 1983) and Robin Self (Corporate Secretary and co-owner since 2003 acquisition); Bradley Self serves as President. Headcount stands at 150+ employees across both entities, supported by an apprenticeship program and long-tenured staff in skilled trades. Average annual revenue is approximately $32 million.
Interstate Mechanical Contractors, Inc. firmographics
Firmographics- Name
- Interstate Mechanical Contractors, Inc.
- Legal name
- Interstate Mechanical Contractors, Inc.
- Website
- https://interstatemechanical.com
- Company type
- Private
- Founded year
- 1982
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- Interstate Mechanical Contractors is a family-owned Knoxville, Tennessee mechanical contracting firm providing commercial HVAC, plumbing, pipe and sheet metal fabrication, 24/7 service, and preventive maintenance to institutions, healthcare, manufacturing, and commercial facilities across East Tennessee, Kentucky, and North Carolina.
- Ownership category
- akta.pro rank
Interstate Mechanical Contractors, Inc. industry classification
Industry- Product category
- Commercial Mechanical Contracting Services
- NAICS
- Plumbing, Heating, and Air-Conditioning Contractors (238220)
- SIC
- Construction - Special Trade Contractors (1700)
- akta.pro primary industry
- HVAC & Refrigeration Contracting (IMAFALAB)
- akta.pro secondary industries
- Plumbing & Pipefitting Contracting (IMAFALAC), Industrial/Process Piping & Mechanical Contracting (IMAFALAG)
Keywords
Where Interstate Mechanical Contractors, Inc. is headquartered
LocationHeadquarters
- HQ city
- Knoxville
- HQ country
- United States
- HQ region
- North America
Offices3 records
Markets served
Interstate Mechanical Contractors, Inc. business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Supply Chain, Operations, Technology or R&D, Marketing or Sales
Revenue model
- Special Projects: Smaller, faster projects typically ranging from $1,000 to $100,000 with quick turnaround times. Fully-manned with field crew accustomed to fast-paced and quick lead times.
- Commercial Construction Services: Full mechanical construction including HVAC, Millwright, and Site Utilities for commercial and industrial facilities. Projects range from $500 to $10 million.
- Preventive Maintenance Programs: Customized maintenance programs to reduce facility costs with energy savings assessments and regular diagnostic analyses.
- 24/7 Emergency Service & Repair: Commercial service and repair for all types, brands and sizes of HVAC and plumbing units and systems available 24/7.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| One time/ perpetual license | Pay-as-you-go | Small Projects |
| One time/ perpetual license | Multi-year contract | Commercial Construction |
| Subscription | Annual | Preventive Maintenance Programs |
Go-to-market motion2 records
Distribution channels2 records
Marketing channels7 records
Interstate Mechanical Contractors, Inc. product offering
Product offeringCore offering
Interstate Mechanical Contractors is a commercial mechanical contractor that self-performs HVAC, plumbing, and mechanical system installation for new construction and renovation projects. The firm also operates an in-house sheet metal and pipe fabrication shop and runs a service subsidiary (IMS) that delivers preventive maintenance, building automation, controls, energy conservation, and 24/7 emergency repair to existing facilities.
Product overview
Interstate Mechanical Contractors, Inc. is a family-owned mechanical contractor operating two companies: Interstate Mechanical Contractors (IMC) and Interstate Mechanical Service, LLC (IMS). IMC provides mechanical construction services ranging from custom design to full maintenance and repair, including Commercial Construction, Plumbing Services, HVAC Services, In-House Sheet Metal Fabrication, In-House Pipe Fabrication, Preventive Maintenance Programs, and Special Projects. IMS, the service subsidiary, offers 24/7 Commercial HVAC, Commercial Plumbing, Energy Conservation Services, and Controls & Building Automation. The company serves commercial and industrial facilities in East Tennessee including manufacturing plants, healthcare facilities, worship centers, schools, hotels, and retail establishments.
Differentiator
Problem solved
Functional benefit
Products and services
- Commercial Mechanical Construction
Quantifiable outcome
- Reduce energy costs 10-15 percent through proper preventive maintenance
- +2 more outcomes
Companies that use Interstate Mechanical Contractors, Inc.
Customer profileNamed customers4 records
Segments4 records
Ideal customer profiles1 record
Interstate Mechanical Contractors, Inc. technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Interstate Mechanical Contractors, Inc. partnerships and signals
Strategic signalPartnerships
Twelve partnerships are on record, tiered minor and core.
- PHCC (Plumbing- Heating Cooling Contractors Association)minorProfessional trade association for plumbing and HVAC contractors providing industry standards, training, and advocacy.
- CFMA (Construction Financial Management Association)minorAssociation focused on construction financial management providing resources and networking for financial professionals.
- AGC (The Associated General Contractors of America)minorMajor construction industry association representing general contractors and providing advocacy, training, and networking.
- Synergy Solution GroupcoreStrategic partnership group for mechanical contractors providing collective resources and purchasing power.
- ASHRAEminorProfessional society for HVAC industry providing standards, research, and continuing education.
- Knoxville Chamber of CommerceminorLocal chamber of commerce providing networking and business development opportunities in the Knoxville area.
- Oak Ridge Chamber of CommerceminorRegional chamber of commerce serving the Oak Ridge business community.
- BOMA Knoxville (Building Owners and Managers Association)minorProfessional association for commercial real estate building owners and managers.
- Builders Exchange of TennesseeminorConstruction industry organization providing project leads, networking, and industry resources.
- Siemens Certified Solution PartnercoreCertified partnership with Siemens for building automation and controls solutions.
- The Legacy CentreminorRegional business and community organization.
- Athens Area Chamber of CommerceminorRegional chamber of commerce serving the Athens, TN area.
Scale indicators7 records
Recent moves9 records
Expansion highlights5 records
Interstate Mechanical Contractors, Inc. competitors and assessment
Company assessmentBroad incumbents
- EMCOR Group: Largest publicly traded mechanical and electrical construction/services firm (NYSE: EME). Operates across all 50 states with a much broader portfolio; sets competitive benchmarks IMC must meet on large institutional bids.
- APi Group: Global life safety, specialty, and industrial services holding (NYSE: APG) with significant mechanical services exposure. Active acquirer of regional mechanical contractors, representing both a competitor and potential acquirer of IMC.
- U.S. Engineering Company Holdings: Large employee-owned mechanical contractor with multiple offices across the central U.S. Comparable in commercial mechanical construction scope and self-perform execution model with fabrication capabilities.
Direct peers
- Lee Company: Tennessee-based mechanical, HVAC, plumbing, and electrical contractor serving commercial and residential customers across the Southeast. Most direct comparable in geography, service mix, and family-owned operating model.
- Limbach Holdings: Public mechanical services firm (NASDAQ: LMB) specializing in HVAC, plumbing, and building automation for commercial/institutional clients. Closely aligned in service mix and emphasis on building automation/controls growth.
- Bowman Mechanical Services: Regional mechanical contractor providing HVAC, plumbing, and mechanical construction services in the Southeastern U.S. Comparable size and customer base to IMC's commercial and industrial focus.
- Comfort Systems USA: National mechanical contracting and HVAC service provider (NYSE: FIX) with regional operating subsidiaries. Directly comparable business model — commercial HVAC, plumbing, and mechanical construction with recurring service revenue.
- S&S Mechanical Contractors: Tennessee-based mechanical contractor serving commercial, industrial, and institutional clients. Comparable in size, scope, and regional Tennessee focus as a direct peer to IMC.
Others
- Synergy Solution Group: Strategic partnership group for independent mechanical contractors providing collective purchasing and best-practice sharing. IMC is a member; relevant as a peer-network organization shaping competitive positioning rather than a direct competitor.
Regional players
- Broadway Mechanical Contractors: Mid-South commercial mechanical contractor serving Tennessee and neighboring states with HVAC, plumbing, and process piping. Comparable service mix and geography with overlap in Tennessee institutional work.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks1 record
Key highlights6 records
Customer concentration
Interstate Mechanical Contractors, Inc. social profiles
Digital presenceInterstate Mechanical Contractors, Inc. financial estimates
Financial estimateRevenue estimate
Valuation estimate
Interstate Mechanical Contractors, Inc. leadership team
Management profileNumber of profiles
Profiles2 records
Interstate Mechanical Contractors, Inc. subsidiaries and ownership
Company hierarchySubsidiaries1 record
Interstate Mechanical Contractors, Inc. funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Interstate Mechanical Contractors, Inc. M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Interstate Mechanical Contractors, Inc.
What does Interstate Mechanical Contractors, Inc. do?
Interstate Mechanical Contractors is a commercial mechanical contractor that self-performs HVAC, plumbing, and mechanical system installation for new construction and renovation projects. The firm also operates an in-house sheet metal and pipe fabrication shop and runs a service subsidiary (IMS) that delivers preventive maintenance, building automation, controls, energy conservation, and 24/7 emergency repair to existing facilities.
Is Interstate Mechanical Contractors, Inc. a public or private company?
Interstate Mechanical Contractors, Inc. is a private company. It is classified as family owned and is currently operating.
When was Interstate Mechanical Contractors, Inc. founded?
Interstate Mechanical Contractors, Inc. was founded in 1982. It employs 101 to 250 people.
Where is Interstate Mechanical Contractors, Inc. based?
Interstate Mechanical Contractors, Inc. is headquartered in Knoxville, United States, in the North America region.
How does Interstate Mechanical Contractors, Inc. make money?
Four revenue lines are on record. Special Projects are the primary driver. The others are commercial Construction Services, preventive Maintenance Programs and 24/7 Emergency Service & Repair.
Who are Interstate Mechanical Contractors, Inc.'s main competitors?
Broad incumbents on record are EMCOR Group, APi Group and U.S. Engineering Company Holdings. Direct peers are Lee Company, Limbach Holdings, Bowman Mechanical Services, Comfort Systems USA and S&S Mechanical Contractors. Synergy Solution Group is listed as an others. Broadway Mechanical Contractors is listed as a regional player.
Does Interstate Mechanical Contractors, Inc. have an API?
No public API is recorded for Interstate Mechanical Contractors, Inc..
What industry is Interstate Mechanical Contractors, Inc. in?
Interstate Mechanical Contractors, Inc.'s product category is Commercial Mechanical Contracting Services. Its primary akta.pro industry code is IMAFALAB, HVAC & Refrigeration Contracting, with a secondary code of IMAFALAC, Plumbing & Pipefitting Contracting. Its NAICS code is 238220 and its SIC code is 1700.