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A. T. KLEMENS & SON

UEI: ZNBNMLHAMCZ3CAGE: 48670

A. T. KLEMENS & SON is a federal contractor, registered under UEI ZNBNMLHAMCZ3 and CAGE code 48670. It has been awarded $661,037 in federal contracts. Primary work spans Plumbing, Heating, and Air-Conditioning Contractors, Unknown NAICS, and Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance. Top awarding agencies include Department Of Defense, Department Of The Interior, and General Services Administration (gsa).

Contact Information

Registration and classification details

Registration

UEI Code

ZNBNMLHAMCZ3

CAGE Code

48670

Entity Structure

Corporate Entity (Not Tax Exempt)

Established

N/A

Business Classifications

For Profit OrganizationSubchapter S Corporation

NAICS Codes

238160Roofing Contractors
238210Electrical Contractors and Other Wiring Installation Contractors(Primary)
238220Plumbing, Heating, and Air-Conditioning Contractors

Federal Contracting Overview

Award totals, agency breakdown, NAICS distribution, and geographic footprint.

AI Capability Profile

A. T. KLEMENS & SON specializes in the installation and integration of split air conditioning systems and related HVAC infrastructure for federal facilities, with demonstrated expertise in precision climate control solutions for sensitive operational environments. Their technical capabilities includ...

A. T. KLEMENS & SON specializes in the installation and integration of split air conditioning systems and related HVAC infrastructure for federal facilities, with demonstrated expertise in precision climate control solutions for sensitive operational environments. Their technical capabilities include ductless mini-split system deployment, refrigerant line routing, electrical load balancing, and thermostat integration—skills critical for maintaining environmental compliance in law enforcement and wildlife management facilities. The contractor’s work emphasizes energy-efficient, low-profile HVAC installations that minimize structural disruption while ensuring optimal thermal performance in mission-critical spaces. Their approach reflects a strong understanding of building science, airflow dynamics, and system zoning tailored to federal facility requirements. The company has delivered services to the Department of the Interior, specifically supporting the U.S. Fish and Wildlife Service with climate control upgrades for special agent operations centers. This engagement suggests a pattern of working with federal land management and conservation agencies that require reliable, quiet, and space-efficient HVAC systems in remote or retrofit-sensitive locations. Their experience aligns with the unique operational needs of federal sites where environmental control supports both personnel comfort and equipment integrity. Operating under NAICS 238220, A. T. KLEMENS & SON focuses on plumbing, heating, and air-conditioning contracting, with a narrow but specialized vertical in non-ducted, high-efficiency cooling systems for federal infrastructure. This positions them as a niche provider for agencies requiring targeted HVAC interventions rather than full-scale renovations. Their market presence is defined by precision installations in existing federal buildings, emphasizing minimal downtime and code-compliant execution. As a small business structured as a 2L entity based in Great Falls, Montana, the contractor maintains a regional footprint with direct access to federal facilities across the Northern Rockies. While no formal government certifications are listed, their ability to secure and execute federal contracts demonstrates proven compliance with procurement standards and facility-specific technical requirements.

Key Performance Metrics

Awards Count

19

All time

Active

0

Currently performing

Completed

19

Past period of performance

Total Awards

All time

Contracts

Prime · all time

Subcontracts

Sub · all time

Grants

Prime · all time

Subgrants

Sub · all time

Award Analytics & Distribution

Awards by Agency Over Time
Awards by Place of Performance

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NAICS: 237110
New
Morgans Branch Force Main and Pump Station Improvements
Solicitation # SRP-W-134-0290
The Morgans Branch Force Main and Pump Station Improvements project, solicitation number SRP-W-134-0290, is a construction contract for the City of Belmont, North Carolina, with an estimated value of 16,690,000 dollars. The scope of work involves the construction of 16,435 linear feet of new 20-inch ductile iron force main and comprehensive upgrades to the Morgans Branch Pumping Station. Key infrastructure improvements include the installation of a new wet well, valve vault, and associated appurtenances, as well as the demolition of existing pumps and piping. The contractor is responsible for delivering a fully operational facility, including the installation of pumps, a generator, odor control equipment, new gravity sewers, and manholes, while managing by-pass pumping, testing, and commissioning. The contract will be awarded to the responsible bidder submitting the lowest responsive bid, with a strong emphasis on MWBE compliance through the submission of Good Faith Efforts and Table A documentation. Bids are due by November 12, 2026, and must be submitted using the EJCDC C-410 Bid Form. The project is governed by EJCDC standard general and supplementary conditions, requiring performance and payment bonds and proof of insurance. Technical standards include AWWA Specification C-600 for pipelines, NEMA MG1 for motors, and AWS D1.2 for aluminum welding. Project administration is managed by the City of Belmont with Willis Engineers serving as the project engineer. Payment is processed via Applications for Payment, with terms set at 30 days after presentation to the owner.
Don Moorhead Construction, Inc.

POSTED

about 7 hours ago

DEADLINE

in 20 days
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NAICS: 561790
New
MI 2026-15 Hood Cleaning Services
Solicitation # MI 2026-15
Adams and Associates, Inc., operating on behalf of the U.S. Department of Labor, is soliciting bids for quarterly hood cleaning services at the Miami Job Corps Center in Florida. The contract covers a one-year performance period from November 1, 2026, to October 31, 2027, and requires the comprehensive cleaning and degreasing of four hoods located in the Cafeteria, Culinary Arts, and Daycare kitchens. Key deliverables include the disassembly and cleaning of hoods, filter tracts, grease troughs, and removable grease cups, with a requirement for a certification of service upon completion. All work must comply with Center safety and security regulations, including mandatory searches and a strict prohibition on fraternization with students and personnel. To be eligible, vendors must maintain an active SAM.gov registration and a valid Unique Entity ID. Bidders are required to submit a comprehensive package on company letterhead including a W9, vendor questionnaire, authority to commit, and all necessary business and employee licenses for the State of Florida. Insurance requirements are stringent, necessitating Workers Compensation, Automobile Liability, and Comprehensive General Liability of at least $1,000,000 per occurrence with the Miami Job Corps Center listed as an additional insured. While cost is a significant factor, the award will be granted to the bidder deemed most responsible. Payment terms are NET 30 days from the date of invoice, and the project is subject to the Service Contract Act and Department of Labor wage determinations.
Miami Job Corps Center

POSTED

about 7 hours ago

DEADLINE

in 2 days
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NAICS: 238220
New
WOJC - Multi-Building Plumbing Leak Repair Project
Solicitation # WOJC – Multi-Building Plumbing Leak Repair Project
Education and Training Resources is seeking quotes for a subcontracting opportunity to perform multi-building plumbing leak repairs at the Westover Job Corps Center in Chicopee, Massachusetts. The scope of work includes replacing leaking shower P-trap drain pipes in Rooms 123 and 213, repairing a cracked drain pipe in the pipe chase of Room 216, and replacing approximately ten linear feet of leaking heat pipe sections in both the Administration Building and King Hall. All work must conform to the Massachusetts State Plumbing Code and International Plumbing Code, utilizing new commercial-quality materials suitable for hydronic heating service. The contractor is responsible for removing all debris and repairing any facility damage caused during performance at no additional cost. Interested bidders must submit a detailed quote by October 30, 2026, including a comprehensive cost breakdown of labor and materials, a proposed service schedule, and a bid validity period of at least 60 days. Required documentation includes a current SAM.gov UEI number, active registration, Massachusetts licensing, a W-9, a signed ETR Vendor Acknowledgement Form, and certificates of insurance. This is an SBA set-aside opportunity for various small business categories. Award selection is not based solely on the lowest price; ETR will evaluate cost, qualifications, and administrative compliance. The project is subject to federal regulations, including the Davis-Bacon Act, Service Contract Act, and specific FAR clauses regarding anti-lobbying and debarment. Performance bonds are required for projects exceeding 35,000 dollars.
Westover Job Corps Center

POSTED

about 7 hours ago

DEADLINE

in 9 days
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NAICS: 238220
New
MI 2026-14 Emergency Heating and Air Conditioning Services
Solicitation # MI 2026-14
Adams and Associates, Inc., contracting for the U.S. Department of Labor, is soliciting bids for emergency heating and air conditioning services at the Miami Job Corps Center in Florida. The period of performance runs from November 1, 2026, to October 31, 2027. The selected vendor will provide emergency HVAC repairs, with pricing required for non-emergency daytime services (8:00 am to 4:30 pm) as well as emergency, weekend, and holiday rates. As a federally funded facility, the Center is entitled to GSA pricing. Award decisions will be based on the most responsible bidder, considering cost, licensure, experience, and insurance capabilities. Eligible bidders must be small businesses or certified socioeconomic categories, including VOSB, SDVOSB, WOSB, and HUBZone. Mandatory requirements include a valid Unique Entity ID (UEI), active SAM.gov registration, and all necessary Florida state business and employee licenses. Vendors must maintain Workers Compensation, Automobile Liability, and Comprehensive General Liability insurance of at least $1,000,000 per occurrence. The contract is subject to the Service Contract Act (Wage Determination No. 2005-2248) and the Davis-Bacon Act, with a minimum wage of $13.65 per hour applicable through December 31, 2026. Bids must be submitted on company letterhead by October 23, 2026, and include a W9, Vendor Questionnaire, Authority to Commit, and a certificate of insurance. Payment terms are NET 30 days. Personnel performing work on-site must adhere to strict security protocols, including searches and a prohibition on fraternization with students and staff. All deliveries must be coordinated through the Center's security personnel.
Miami Job Corps Center

POSTED

about 7 hours ago

DEADLINE

in 2 days
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