Excel Mechanical
Excel Mechanical is a Tucson, Arizona-based mechanical contractor founded in 1986 that delivers commercial and residential HVAC, plumbing, custom sheet metal fabrication, and Aeroseal duct-sealing services across Southern Arizona under Arizona ROC contractor licenses.
- Company typePrivate
- Founded1986
- HeadquartersTucson, United States
- Headcount51–100
- GTM typeB2B
- OfferingServices
What Excel Mechanical does
Excel Mechanical, Inc. is a Tucson, Arizona-based mechanical contracting company founded in 1986 by James (Jim) Zarling, providing commercial and residential HVAC and plumbing services across Southern Arizona. The company employs 51-100 people and operates from a single headquarters at 3565 E Golf Links Rd, Tucson, AZ 85713, holding Arizona ROC contractor licenses (#096704, #096695, #167371). Service delivery is direct field-based across Tucson, Marana, Oro Valley, Sahuarita, Sierra Vista, Casa Grande, and surrounding areas.
The company's core offerings are HVAC and plumbing services — sales, installation, preventative maintenance, diagnostics, and repair — supplemented by specialized lines including patented Aeroseal/GreenSeal duct sealing for commercial buildings, in-house custom sheet metal fabrication (General Sheet Metal / GSM producing ductwork, flashing, caps, and drain pans), certified backflow testing, and airflow calibration. It operates as a Southwest Gas Co. Preferred Contractor and employs certified technicians holding Med Gas, LEED AP, Backflow Testing, EPA, OSHA 10, and CPC credentials, enabling work in regulated healthcare, government, and institutional settings. Named customers include Tucson Medical Center, Banner Casa Grande Medical Center, Sahuarita USD, Pima College, ADOT, Quiktrip, and Interceramic, with 170+ projects completed across healthcare, education, government/tribal, retail/commercial, multi-family, restaurants, and auto/gas-station verticals.
Commercially, Excel Mechanical runs a sales-led, quote-based professional services model with pay-as-you-go billing, no public pricing, and no digital self-serve channels — all service requests are initiated via phone, email, or web contact forms. The company remains founder/owner-controlled (Jim Zarling as CEO, his son TJ Zarling as President since 2014, with three VPs overseeing Operations, Construction, and Finance), has no external investors or PE backing, and shows no M&A, funding, or AI/ML initiatives in the source data. It is a long-tenured regional mechanical contractor whose growth has come from service-line expansion and incremental geographic spread within Southern Arizona.
Excel Mechanical firmographics
Firmographics- Name
- Excel Mechanical
- Legal name
- Excel Mechanical, Inc.
- Website
- https://excelmechanicalinc.com
- Company type
- Private
- Founded year
- 1986
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- Excel Mechanical is a Tucson, Arizona-based mechanical contractor founded in 1986 that delivers commercial and residential HVAC, plumbing, custom sheet metal fabrication, and Aeroseal duct-sealing services across Southern Arizona under Arizona ROC contractor licenses.
- Ownership category
- akta.pro rank
Excel Mechanical industry classification
Industry- Product category
- HVAC and Plumbing Mechanical Contracting
- NAICS
- Plumbing, Heating, and Air-Conditioning Contractors (238220)
- akta.pro primary industry
- HVAC Installation, Service & Repair (IMAIABAA)
- akta.pro secondary industries
- HVAC & Refrigeration Contracting (IMAFALAB), Plumbing (Residential & Commercial) (EDAOACAA), Energy Services (Retrofits/Commissioning/Testing & Balancing) (IMAIABAI), Air Handling Units (AHUs) & Rooftop Units (RTUs) (IMADANAA)
Keywords
Where Excel Mechanical is headquartered
LocationHeadquarters
- HQ city
- Tucson
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Excel Mechanical business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Supply Chain, Infrastructure, Marketing or Sales, Technology or R&D
Revenue model
- HVAC Services: Revenue from heating, ventilation, and air conditioning services including sales, installation, maintenance, repairs, and preventative maintenance for commercial and residential clients.
- Plumbing Services: Revenue from plumbing services including new installation, repairs, backflow certification, camera/locate services, and routine maintenance for commercial and residential properties.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Pay-as-you-go | Quote-based pricing for all services |
Go-to-market motion1 record
Distribution channels2 records
Marketing channels3 records
Excel Mechanical product offering
Product offeringCore offering
Excel Mechanical provides HVAC and plumbing services for commercial, industrial, and residential customers across Southern Arizona, including sales, installation, preventative maintenance, repair, and custom sheet metal fabrication. The company also offers specialized capabilities such as certified Aeroseal duct sealing for commercial buildings, backflow certification, and airflow calibration to support new construction, tenant improvements, retrofit, and replacement projects.
Product overview
Excel Mechanical is a full-service mechanical contracting company offering HVAC and Plumbing services. Founded in 1986, the company provides a unified portfolio of services spanning sales, installation, maintenance, and repair for both commercial and residential clients across Southern Arizona. The core product lines are HVAC Services (heating, ventilation, air conditioning) and Plumbing Services (water, drainage, gas systems), supplemented by specialized offerings including Duct Sealing using patented Aeroseal technology, Custom Sheet Metal Fabrication, Backflow Certification, and Airflow Calibration. The company specializes in new construction, tenant improvements, custom homes, and retrofit projects serving sectors including healthcare, schools, retail, government/tribal, restaurants, auto/gas stations, and multi-family residential properties.
Differentiator
Problem solved
Functional benefit
Products and services
- HVAC Services Comprehensive heating, ventilation, and air conditioning solutions including diagnosis, troubleshooting, preventative maintenance, sales, service, installation, and custom sheet metal fabrication for commercial, industrial, and residential properties across Southern Arizona.
- Plumbing Services Full-service plumbing including diagnosis, troubleshooting, preventative maintenance, camera/locate services, backflow certification, sales, service, and installation for water, drainage, and gas systems serving commercial and residential customers.
- Custom Sheet Metal Fabrication
Companies that use Excel Mechanical
Customer profileNamed customers7 records
Segments2 records
Ideal customer profiles2 records
Excel Mechanical technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature1 record
Excel Mechanical partnerships and signals
Strategic signalPartnerships
Two partnerships are on record, tiered core.
- GreenSeal (Aeroseal)coreExcel Mechanical is a certified applicator of GreenSeal/Aeroseal duct sealing technology for commercial buildings. This proprietary technology allows for effective and affordable sealing of ductwork systems from within, and the company conducts thorough diagnostic tests before and after the sealing process.
- Southwest Gas CorporationcoreExcel Mechanical holds status as a Southwest Gas Co. Preferred Contractor, indicating a preferred business relationship for gas-related HVAC work in the Southern Arizona region.
Scale indicators4 records
Recent moves5 records
Expansion highlights4 records
Excel Mechanical competitors and assessment
Company assessmentDirect peers
- TDIndustries: Employee-owned mechanical contractor providing HVAC, plumbing, and building automation across the Southwest. Closely matches Excel's regional mechanical-contractor model, MEP scope, and institutional customer focus.
- Limbach Holdings: Specialty mechanical contractor delivering HVAC, plumbing, and building controls for healthcare, education, and commercial facilities. Direct overlap with Excel's core service lines and institutional customer base.
- RKS Plumbing & Mechanical: Regional mechanical and plumbing contractor serving commercial and residential customers in the U.S. Southwest. Closely comparable to Excel in trade mix, customer verticals, and mid-sized regional service delivery model.
- Comfort Systems USA: National mechanical contracting firm providing HVAC, plumbing, and building automation services to commercial and industrial customers. Highly comparable to Excel Mechanical in service mix and customer profile, though operating at vastly larger scale across multiple U.S. regions.
Broad incumbents
- Johnson Controls: Building technology and HVAC systems OEM with global installation and service operations. Comparable in serving healthcare, education, and government facilities with HVAC and controls, though at much larger scale and with proprietary equipment.
- EMCOR Group: Large diversified facilities and mechanical services contractor with HVAC, plumbing, and electrical capabilities. Same trade mix as Excel but at national scale with broader service breadth, including energy services and large healthcare construction.
- Trane Technologies: Global HVAC and building controls manufacturer with commercial service operations. Overlaps with Excel on commercial HVAC install/service, though Trane is equipment-led with an extensive owned service network.
- Carrier Global: Global HVAC equipment manufacturer and service provider. Comparable in HVAC category leadership and brand familiarity; however, Carrier primarily manufactures and services its own equipment, whereas Excel installs and services multi-brand systems.
- APi Group: Public safety, specialty, and industrial services holding company with mechanical services and HVAC service arms. Comparable end-customer verticals (healthcare, education, commercial) but broader portfolio and global footprint.
Others
- ServiceTitan: Software platform serving HVAC, plumbing, and mechanical contractors. Adjacent ecosystem peer rather than direct competitor, but its tools are used by firms like Excel Mechanical to manage dispatch, sales, and back-office operations.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
Excel Mechanical social profiles
Digital presenceExcel Mechanical financial estimates
Financial estimateRevenue estimate
Valuation estimate
Excel Mechanical leadership team
Management profileNumber of profiles
Profiles10 records
Excel Mechanical funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Excel Mechanical 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 Excel Mechanical
What does Excel Mechanical do?
Excel Mechanical provides HVAC and plumbing services for commercial, industrial, and residential customers across Southern Arizona, including sales, installation, preventative maintenance, repair, and custom sheet metal fabrication. The company also offers specialized capabilities such as certified Aeroseal duct sealing for commercial buildings, backflow certification, and airflow calibration to support new construction, tenant improvements, retrofit, and replacement projects.
Is Excel Mechanical a public or private company?
Excel Mechanical is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Excel Mechanical founded?
Excel Mechanical was founded in 1986. It employs 51 to 100 people.
Where is Excel Mechanical based?
Excel Mechanical is headquartered in Tucson, United States, in the North America region.
How does Excel Mechanical make money?
Two revenue lines are on record. HVAC Services are the primary driver. The others are plumbing Services.
Who are Excel Mechanical's main competitors?
Direct peers on record are TDIndustries, Limbach Holdings, RKS Plumbing & Mechanical and Comfort Systems USA. Broad incumbents are Johnson Controls, EMCOR Group, Trane Technologies, Carrier Global and APi Group. ServiceTitan is listed as an others.
Does Excel Mechanical have an API?
No public API is recorded for Excel Mechanical.
What industry is Excel Mechanical in?
Excel Mechanical's product category is HVAC and Plumbing Mechanical Contracting. Its primary akta.pro industry code is IMAIABAA, HVAC Installation, Service & Repair, with a secondary code of IMAFALAB, HVAC & Refrigeration Contracting. Its NAICS code is 238220.