Frederick S. Petrus, CPA, MBA
President and Chief Operations Officer

As President and CEO of Nichols & Phipps Plumbing and Heating Corporation, Fred is focused on creating a “Customer-Centered” culture that takes advantage of the Company’s forty (40) year heritage serving families and businesses in the Washington Metropolitan Area. He is committed to 100% Customer Satisfaction while expanding the products and services offered by Nichols & Phipps to meet the increasing consumer demand for quality heating, cooling, plumbing, electrical and related home and business products and services. Since the acquisition of Nichols & Phipps in 2008, Fred’s been active in all aspects of developing and growing the organization. As a Real Estate Professional, he dedicates the majority of his time in real property businesses which include serviceing and repairs, development or redevelopment, construction or reconstruction, acquisition or conversion, rental, management or operation, leasing, buying and selling.  He’s been in the HVAC industry for over twelve (12) years. Prior to the service industry Fred was the Assistant Treasurer of Virginia Banks, Inc., their corporate office was located in the heart of Falls Church, Virginia.  Fred is also an accountant. He has a Bachelor’s Degree in Accounting from the University of Pittsburgh and a Master’s Degree in Business from Marymount University. He also holds the status of a Certified Public Accountant (CPA) in Virginia and Maryland, but is not actively practicing. Fred is also a licensed Master Electrician, Master Gasfitter, Master Air Condition Heating and Ventilation and Master Plumber in both Maryland and Virginia. He also holds a Class “A” Contractors License in Virginia. With his diverse job experience and education, Fred is able to support Nichols & Phipps mission 100% Customer Satisfaction by promoting a positive work environment in which employees can thrive and grow.


Chris D. Malzahn
General Manager and Vice President

Chris is an essential key asset to the company.  He plays many roles in the successful management of the day-to-day operations of the Company.  His true dedication and hard work assure our Plumbing, HVAC, Construction and Electrical divisions are functioning properly without any interruptions that could possibly impact our true success.  Chris has been with the Company since February 10, 2003.  Along with dedication he brings over 32 years of trade experience in the Plumbing, HVAC and Electrical service industries.  Chris strives to achieve 100% Customer Satisfaction.


Charles “Cary” W.E. Ritchey, III

Electrical Operations Manager, Estimator and Vice President

Cary heads up our Electrical Contracts Division for 8+ years.  He has 26+ years of commercial and residential electrical experience, including running and managing his own company and preparing estimates for electrical contracts.  He works with general contractors, engineers, county inspectors, architects, superintendents and other subcontractors to ensure the field projects run smoothly and get completed in a timely manner.  Cary actually works with his technicians on a daily basis.  He believes everyone needs to carry their own weight and they will respect you more if you show them the same respect as you would want yourself. Cary is a licensed Master Electrician and holds Certifications in Edwards FSA fire alarm systems, Leviton structured systems and Leviton Vista rf lighting controls.  He is married for 25 years with 2 children.  Family has always come first for Cary and he carries that value to the workplace.


Troy Woody
Plumbing Operations Manager and Chief Estimator

Troy was our Senior Contract Plumber before being promoted to his current position.  He brings with him 32+ years in commercial and residential plumbing experience.  His outstanding strong work ethic is the key to his success.  He has only worked for two companies in his career, our company for 12+ years and one other plumbing company for 20 years. He is an expert from layout of the survey points to bringing the plumbing into the building and throughout the plumbing systems.  Troy has extensive knowledge in designing the plumbing from the ground up on various new construction projects/contract jobs whether it is an office building, shopping center, restaurant, school, hospital, apartment or condominium.  He has an excellent rapport with general contractors, engineers, county inspectors, architects, job superintendents and other subcontractors.


Daniel E. Graumann
Residential Construction Manager and Vice President

Danny is the knowledge behind our full service construction Company.  He has been with us for over 8 years, but brings his extensive expertise with over 44 years in the business, whether it is construction of commercial buildings, commercial build outs, residential additions, remodeling projects or building average to high end/luxury homes from the ground up. Danny holds a Virginia Class “A” Contractors License in General Construction and a Builders/Developers License.  His customers praise his superior quality workmanship.  Most of work is referrals by very satisfied homeowners.


Mary L. Lieu
Chief Financial Officer

Mary is responsible for all aspects of the company’s accounting, treasury and financial analysis functions.  She brings over 28 years of accounting/financial experience, including positions as Controller for a commercial and residential central heating and cooling specialists, plumbing services and piping contractors for over 16 years.  Mary also served as an Accounting Manager for a builder/developer, a Senior Accountant for a regional bank in their real estate finance division and an Accountant with a national financial services corporation.  She holds a Bachelor’s Degree in Finance from Virginia Commonwealth University.  Mary is married with 2 sons, 1 is in college and the other is in high school.  She loves spending time with her family and enjoys traveling and sightseeing.


Pam Jones

Pam was an original employee of Nichols & Phipps.  From day 1, Nichols & Phipps mission of providing 100% Customer Satisfaction was embodied in her work ethics.  She brings with her over 26 years of accounting experience. She handles Accounting functions such as cash management, payroll, accounts receivable, accounts payable, contract billing and etc….  Pam also oversees the dispatch staff and handles all Human Resources matters. She treats every employee with respect.  As you can see, providing invaluable company support.  Pam is married with 2 children, 8 grandchildren and 3 great grandchildren.


Jose Agudelo
HVAC Installation Manager and Senior Estimator

Jose has 9+ years of Commercial and Residential HVAC Installation experience with us.  He has a total of 14+ years in HVAC installs and is an expert of ductwork design and has an additional 15 years skilled in designing and installing commercial ductwork.  He is our estimator for HVAC install projects.  Jose designs ductwork and HVAC systems for new homes and renovations.  He has extensive knowledge from working on geothermal systems and water source units/heat pumps.  He is a licensed Master Heating, Ventilation & Air Conditioning (HVAC). Jose believes you have to provide what the customer needs, give them choices and be honest with them. He treats the customer or contractor in a professional manner, taking care of them like he would take care of his own home.


George E. Joseph, Sr.

HVAC Operations Manager

George manages several departments including Residential/Commercial HVAC Service and Installations, Residential/Commercial Electrical Service and Commercial Refrigeration Service.  He has run these divisions for almost 3 years. George brings to the table over 26 years’ experience in the HVAC, Electrical Service and Commercial Refrigeration industry. He is a licensed Master Heating, Ventilation & Air Conditioning (HVAC).  He holds a CFC 608 Universal Certification and numerous Certified Customer Service training programs.  He strives to provide 100% Customer Satisfaction and happiness.  He believes you should always do the right thing, but utmost be honest and fair to your customers.  George is married with 3 children, 2 are grown and have started their adult lives leaving 1 at home.  He enjoys fishing, racing and football.



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