H&D Mechanical

Q: What is H&D Mechanical's official website?

H&D Mechanical's official website is www.hdmechanical.net

Q: What is H&D Mechanical's Revenue?

H&D Mechanical's revenue is <$5 Million

Q: How many employees does H&D Mechanical have?

H&D Mechanical has 11-50 employees

Q: What industry does H&D Mechanical belong to?

H&D Mechanical is in the industry of: Construction Management , Construction

Q: What is H&D Mechanical competition?

H&D Mechanical top competitors include: 4C A/C & Heating , W F Smith , Level 9 , Brazos Valley Precision Heating & Air

Q: What technology does H&D Mechanical use?

Some of the popular technologies that H&D Mechanical uses are: WordPress.org, PHP, Google Font API, Microsoft 365

Q: How do I contact H&D Mechanical?

H&D Mechanical contact info: Phone number: (443) 949-9842 Website: www.hdmechanical.net

Q: What does H&D Mechanical do?

H&D Mechanical is a mid-size mechanical contractor based in Upper Marlboro, Maryland, founded in 2009 by Sean Duffy and Erik Harley. The company specializes in providing safe and workable environments for clients in medical, scientific, and commercial sectors. H&D Mechanical is committed to enhancing the value of its clients through quality work th... at improves efficiency and comfort in various structures such as hospitals, airports, and schools. Their established record of superior work demonstrates their dedication to creating efficient spaces for professionals to serve others. Read More

Q: What are H&D Mechanical social media links?

H&D Mechanical Linkedin page H&D Mechanical Twitter page H&D Mechanical Facebook page

Q: Who invested in H&D Mechanical?

H&D Mechanical has 2 investors including PPP and PPP.

Construction Management · Maryland, United States · 11-50 Employees

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Overview

Headquarters

7703 Crain Hwy, Upper Marlboro, Maryland...

Phone Number

(443) 949-9842

Website

www.hdmechanical.net

Revenue

<$5 Million

Industry

Construction Management

Construction

About H&D Mechanical

H&D Mechanical is a mid-size mechanical contractor based in Upper Marlboro, Maryland, founded in 2009 by Sean Duffy and Erik Harley. The company specializes in providing safe and workable environments for clients in medical, scientific, and commercial sectors. H&D Mechanical is committed to enhancing the value of its clients through quality work that improves efficiency and comfort in various structures such as hospitals, airports, and schools. Their established record of superior work demonstrates their dedication to creating efficient spaces for professionals to serve others.Explore more

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SIC Code 17,171NAICS Code 23,238Show more

H&D Mechanical Org Chart

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Jeffrey Kushner

Vice President, Estimating

Phone

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David Duffy

Manager

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Daniel Richardson

Superintendent

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Company Name

Revenue

Number of Employees

Type

Funding

Founded In

Top Executive

H&D Mechanical

<$5M

11-50

Private

<$5M

2009

Jeffrey KushnerVice President, Estimating

W F Smith

$8M

11-50

Private

<$5M

1990

Stephen SmithController

Level 9

<$5M

11-50

Private

<$5M

2003

Abby PoetzDirector, Marketing

A/c Pros

<$5M

1-10

Private

2016

N/A

Brazos Valley Precision H...

<$5M

1-10

Private

<$5M

2015

N/A

State Heating & Air Condi...

<$5M

1-10

Private

N/A

4C A/C & Heating

<$5M

1-10

Private

2012

Elyssia CavazosExecutive Assistant

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H&D Mechanical Tech Stack

A closer look at the technologies used by H&D Mechanical

PHP

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Top Construction Management Companies

Frequently Asked Questions Regarding H&D Mechanical

What is H&D Mechanical's official website?

H&D Mechanical's official website is www.hdmechanical.net

What is H&D Mechanical's Revenue?

H&D Mechanical's revenue is <$5 Million

What is H&D Mechanical's SIC code?

H&D Mechanical's SIC: 17,171

What is H&D Mechanical's NAICS code?

H&D Mechanical's NAICS: 23,238

How many employees does H&D Mechanical have?

H&D Mechanical has 11-50 employees

What industry does H&D Mechanical belong to?

H&D Mechanical is in the industry of: Construction Management, Construction

What is H&D Mechanical competition?

H&D Mechanical top competitors include: 4C A/C & Heating, W F Smith, Level 9, Brazos Valley Precision Heating & Air

What technology does H&D Mechanical use?

Some of the popular technologies that H&D Mechanical uses are: WordPress.org, PHP, Google Font API, Microsoft 365

How do I contact H&D Mechanical?

H&D Mechanical contact info: Phone number: (443) 949-9842 Website: www.hdmechanical.net

What does H&D Mechanical do?

What are H&D Mechanical social media links?

H&D Mechanical Linkedin page H&D Mechanical Twitter page H&D Mechanical Facebook page

Who invested in H&D Mechanical?

H&D Mechanical has 2 investors including PPP and PPP.

Is H&D Mechanical a public company?

H&D Mechanical is private company therefore does not currently have an official ticker symbol

See more information about H&D Mechanical

H&D Mechanical Latest Hires and Their Positions

H&D Mechanical is expanding and recently hired new employees. Here are the latest additions to the team.

Megan Duffy

Project Manager

Joined Feb 9, 2026

Phone

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