E-mail: [email protected]

Our Services

Our client's satisfaction is an absolute must, therefore we prudently recruit highly qualified professionals who have the specific credentials and capabilities to solve problems or needs.

Services Offered: Installation/Repair

  • HVAC system installationHVAC service technician inspecting HVAC unit

    Main Water

  • HVAC system installationHVAC system installation with hover effect

    Drain Cleaning &
    Restoration

  • HVAC ductwork inspectionHVAC service technician repairing furnace

    Water Heaters

  • HVAC ductwork repairHVAC ductwork repair with hover effect

    Gas Installations

  • HVAC system maintenance checklistHVAC maintenance service checklist

    New Construction

  • HVAC repair technician fixing air conditionerHVAC repair technician fixing air conditioner with hover effect

    Renovations

  • HVAC service technician examining ductworkHVAC service technician examining air conditioning unit

    Tankless Water
    Heaters

  • HVAC system replacementHVAC system replacement with hover effect

    Main Sewer

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,"

    MILLIE HICKS

  • "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."

    GAYLE THORNTON

  • "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 : [email protected]

Maryland:

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

Virginia:

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
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