Schedule Service

    Appointment Type & Availability

    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 Mechanical 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 Mechanical again."

    • "I was thoroughly impressed with the punctuality, professionalism, and responsiveness of the representative from Definitive Mechanical. 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)679-5849

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

    E-mail :


    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
    State Of Virginia Class A Contractor- 2705181061

    District of Columbia Master Plumber/Master Gasfitter- PGM1002236

    State Of Delaware Master Plumber/Master Gasfitter- PL-0012866

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

    24-Hours Emergency Service

    MDOT MBE CERT No. 20-134
    SWaM CERT No. 815255
    NAICS Code- 238220
    SIC Code- 1711
    CAGE- 8HCF6