Plumbing & Heating

We are Definitive Plumbing & Heating, a small minority Black owned plumbing mechanical contractor serving Maryland, Washington DC & Virginia…..we are a licensed & Insured plumbing contractor with over 25 years of plumbing experience in the commercial & residential sector….we specialize in commercial & residential plumbing & heating service and our specialties include Water Heaters, Tankless water heaters, Boilers, Drain Cleaning, Main Water, Main Sewer, Gas installations, Leak Repairs, New Construction, Backflow Preventers, and many more services….

Definitive has been Incorporated since July of 2016….we are a team of highly qualified plumbing professionals joined and bonded by the common basic principal of superb client satisfaction coupled with competent skilled craftsmanship. We pride ourselves on bringing client’s the ultimate experience and much needed quality and satisfaction knowing the job will get done right the first time. Whether its a new construction project, a renovation or a service call, Definitive can tackle any plumbing job big or small you may have with relative ease so give us a call and let us show you what we can do for you…..we hope to hear from you and we look forward to working for you.

Quality Assurance

At Definitive,

  • We take great pride in our experience, expertise, quality and customer service that we provide to meet the client’s needs.
  • It is our mission to provide excellent workmanship and complete client satisfaction from start to completion of a project.
  • In order to understand the needs and expectations of our clients, we take great care to work and communicate with every client in a professional manner.
  • Our reputation is based on service, safety and quality, regardless of how large or small the job.
  • We believe you build trust through your actions and our Definitive team fully intends to build a trustworthy and quality brand and through our commitment to exceptional workmanship and client satisfaction, we will indeed put out a superb product.

What Our Customers Say

Past Performance Rated "Outstanding" by our Clients!

  • "Keon and his team were on top of it from the beginning. I was greeted well over the phone, and felt as if Keon was invested in my problem before being hired for the job."

    Charles Reed
  • "Definitive Plumbing and Heating provided prompt and excellent same-day service. Very professional!"

    Lakisha Broadway
  • "I was extremely impressed, they were prompt, courteous, and professional if you need plumbers ask for DJ and Keon."

    Michael Frost
  • "Everything went extremely well. They were punctual, which I really liked. Cleaned up after themselves which I also liked. Very professional and courteous. This is my second time hiring this company. I would definitely hire them again. Thanks Definitive,"

  • "Service was excellent. They were prompt, professional and diagnosed and replaced my toilet the same day. and, they left the bathroom spotless. I would definitely use Definitive Plumbing again."

  • "I was thoroughly impressed with the punctuality, professionalism, and responsiveness of the representative from Definitive Plumbing. Both issues were fixed immediately and I have not had any issues since then. Would definitely recommend to a friend."

    Shekida Smith
  • "The price was fantastic, and the guys from Definitive were able to start right away. They worked extremely hard to finish the job and did not cut any corners. I was extremely impressed from the first time they came to give an estimate, and they continued to impress throughout the whole job."

    Bryan Mott
  • "If I could give DJ and his team a 100 stars-- I will. They were punctual, very patient ( they waited in their van for over 2 hours waiting for the WSSC personnel to show up). They went over and beyond what was expected. My family constantly talks about the dedication and patience of these men throughout the period WSSC needed to fix the water main problem."

    Dorothy Wigwe

Call Us : (301)679-5797

Address : 9701 Apollo Drive, Suite 100, Largo, MD 20774, USA

E-mail : [email protected]


State Of Maryland Master Plumber/Master Gasfitter- 96958 WSSC Master Plumber/Master Gasfitter- 73696 Howard Co. Master Plumber/Master Gasfitter- 20020096958 Anne Arundel Co. Master Plumber/Master Gasfitter- A2-6139 City Of Rockville Master Plumber/Master Gasfitter- PLL-0002113 MD Home Improvement Contractor/Salesman- 134723/109901


State Of Virginia Master Plumber/Master Gasfitter- 2710064209

Office Hours :
Monday - Friday 7am-6pm,
Saturday 7am-3pm

24-Hours Emergency Service

MDOT MBE CERT No. 18-352
SWaM CERT No. 807160
NAICS Code- 238220
SIC Code- 1711