mechanical contractor

Who Are We?

Franklin Mechanical, a plumbing, piping, mechanical contractor, became part of the Zak Companies family in 1999. We provide construction services and are uniquely qualified to perform these services for healthcare, educational, commercial, and private facilities. 


We develop more for the project than what is asked. We build relationships and long-term partnerships with our clients/work family. That’s why over 50% of our clients have been with us for almost 20 years.  

-Robert Zak, Jr., President

Our services

Plumbing, Piping, and Mechanical contracting

-Fully Engineering Systems
-Construction Cost Estimating
-Design/Build Services
-GMP Assurance
-Traditional Bid
-Phased Construction
-Fast-track Scheduling

Plumbing systems

-Hot and Cold Water Supply
-Sanitary Waste and Ventilation
-Storm Waste Drainage
-Swimming Pool Filtration and Chemical Treatment
-Plumbing Fixture Selection
-Domestic Water
-Water Features

Municipal facilities

-Public Buildings
-Public Parks and Recreation
-Correctional Facilities

Commercial constructions

-Office Buildings
-Parking Garages
-Multi-Family Housing
-Retirement Communities
-University Structures
-Healthcare Facilities
-Central Plants
-Data Processing Facilities
-Retail Development
-Public and Private Schools
-Research Facilities

Deliver methods

-Plan and Spec Bid
-Time and Material Basis

Contact us

Main Office

240 Larkin Williams Ind. Ct.
Fenton, MO 63026
(636) 492.3200

-Franklin Mechanical, Inc.
-Heideman Associates, Inc.

Franklin Drain Services, Inc.

240 Larkin Williams Ind. Ct.
Fenton, MO 63026
(636) 492.3201

K & F Electric, Inc.

2622 West Boulevard
Belleville, IL 62221
(618) 277.5781

4970 E. Beverly Rd.
Phoenix, AZ 85044
(602) 267.0100

Zak Controls, Inc.

4970 E. Beverly Rd.
Phoenix, AZ 85044
(602) 288.3304

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