Certified Backflow Preventer Inspectors


If you are interested in adding your name to the DC Water list of certified testers and have completed the backflow certification course, you may submit your credentials to the DC Water Cross-Connection Control Program.



DC Water Compliance Program
Department of Water Services
3900 Donaldson Place, NW
Washington, D.C. 20016
Phone: (202) 364-3144
Fax number (202) 364-3143
Email: crossconnection@dcwater.com

List of Certified Testers

Company Certified Tester(s) Contact Information
3-D Plumbing & Heating
PO Box 1462
Bowie, MD 20717
Archie Dennis 301-464-8151 (Office)
301-464-6892 (Fax)
mr3d@aol.com
www.3-dplumbing.com
A Advanced / John G Webster Co
10738 Tucker St
Beltsville, MD 20705
  • Silas Naecker
  • Raymond Powell
  • Jemal Francis
202-783-6100 (Office)
240-433-1315 (Fax)
A.H. Jordan Plumbing & Mechanical
1818 New York Av, Ste. 202
Washington, DC 20002
  • Anthony H. Best
  • Malcom Douglass Jordan
202-529-1058 (Office)
202-529-2868 (Fax)
Ahjordan_plumbing@verizon.net
A-1 Flow Fanatic Services LLC
1836 Burke St SE
Washington, DC 20003
Ervin Harris 301-267-8631 (Office)
Adrian L. Merton Inc.
9011 East Hampton Dr
Capitol Heights, MD 20743
Marc Collier 443-708-1132 (Office)
443-708-1137 (Fax)
marc@almerton.com
Alarm Tech Solutions
7411 Alban Station Ct, Suite A-102
Springfield, VA 22150
  • Charles W Taylor
  • Gregory Odrzywolski
703-440-8185 (Office)
703-440-8187 (Fax)
Dramey@alarmtechsolutions.com
All Mechanical & Plumbing, LLC
P.O. Box 1017
Mechanicsville, MD 20659
John August Fluhart 301-884-6093 (Office)
301-884-3018 (Fax)
240-320-6059 (Cell)
All Seasons Plumbing, Heating & AC Inc
4210 49th St
Bladensburg, MD 20710
Robert A Mongold Jr 301-277-1313 (Office)
301-277-4813 (Fax)
allseasonsplumbers@gmail.com
Alpha Plumbing
18004 meadowsweet Court
Sandy spring, MD 20860
Demetrios Jimmy Macheras 301-570-1947 (Office)
301-570-1948 (Fax)
240-508-4592 (Cell)
alpha1plumbing.net
American Combustion Industries, Inc.
7100 Holladay Tyler Road
Glen Dale, MD 20769
  • Pat Dumpe'
  • James Lathroum
  • Jonas Spangler
  • Blake King
301-779-3400 (Office)
301-779-0425 (Fax)
jlathroum@aciindustries.com
American Masters Plumbing Company LLC
1624 28th St SE Suite 3
Washington, DC 20020
Scott Dickens 301-643-6138 (Office)
American Mechanical Services
13300 Mid Atlantic Blvd
Laurel, MD 20708
  • Mark Williams
  • Brian S. Sullivan Jr.
301-206-5070 (Office)
301-206-2521 (Fax)
rhoover@amsofusa.com
Amtek Engineering Group
3130 Fair View Park Suite 200
Falls Church, VA 22042
Gerald V. Ruehl, II 202-359-7429 (Office)
240-296-8840 (Fax)
jrrhl@aol.com
Anytime Plumbing and Drain Service
26A Holloway Rd
Glen Burnie, MD 21060
Kevin Jay Reece 410-300-5375 (Office)
anytimeplumbing456r@gmail.com
Apex Plumbing
P.O. Box 4025
Woodbridge, VA 22194
Ralph Beall 202-409-8246 (Cell)
703-221-5791 (Fax)
Ralph.beall@verizon.net
Backflow Technology LLC
PO Box 1575
Sterling VA 20167
  • Phillip Barbe
  • Melvin Hinton
  • Brandon Burriss
  • Matthew Vance
  • Benjamin Larobardiere
703-450-5898 (Office)
backflow07@aol.com
Ben Lewis, Inc
23407 Frederick Rd
Clarksburg, MD 20871
Michael Bowersox 301-617-3507 (Office)
Burco Plumbing Corporation
P.O. Box 3024
Prince Frederick MD 20678
James W. Burton 443-532-5253 (Cell)
Capitol Boiler Works.
7921 Woodruff Court
Springfield, VA 22151
  • Karl Oswald
  • Wayne Hedge
  • Chris Day
800-296-6881 (Office)
dsheppard@capitolboilerworks.com
Che Gomez Free Line Inc.,
9244 E. Hampton Dr #607
Capitol Heights, MD 20743
  • Che Gomez
301-4990-0987 (Office)
301-363-2197 (Fax)
www.freelineinc.com
che@freelineinc.com
Complete building Svcs (CBS)
2101 Wisconsin Avenue NW
Washington, DC 20007
  • Timothy M. Smith
  • Gregory R Kinard
  • James Warden
  • Matthew Wert
  • Gary R. Sons
  • Albert R. Ballard
202-540-4640 (Office)
www.completebuildingservices.com
Consolidated Backflow LLC
PO Box 777
New Windsor MD 21776
Brian J Douglass 844-779-8378 (Office)
443-671-6317 (Fax)
443-864-8867 (Cell)
bdouglass@consoildatedbackflow.com
www.consolidatedbackflow.com
Cranford Mechanical
5518 Tuxedo Rd
Cheverly, MD 20781
  • George R Cranford
  • Mitzi Kinzer
301-773-0170 (Office)
cranmech@aol.com
CRW Mechanical
5807 Ellerbie St
Lanham, MD 20706
Todd Estus 301-918-0056 (Office)
800-394-0056 (Office)
301-459-0517 (Fax)
202-437-7758 (Cell)
toddestus@crwmechanical.com
CRL Plumbing System, LLC.
10441 Hickory Ridge Rd #E
Columbia, MD 21044
  • Carlos Lanza
301-996-4869 (Office)
crslanza@yahoo.com
Cropp Metcalfe Services
8421 Hilltop Road
Fairfax, VA 22031
Allan S. Oddenino 703-698-8855 (Office)
David L. Hahn Co
3619 Ordway St NW
Washington DC 20015
David L. Hahn 202-421-5101 (Office)
plumbmasterdave@gmail.com
Dennis Stubbs Plumbing, Inc
7702-L Old Alex Ferr Rd
Clinton, MD 20735
Dennis Stubbs II 301-868-5555 (Office)
DMV Plumbing & Mechanical, LLC
13842 Outlet Dr
Silver Spring, MD 20904
Mondo Brooks 202-812-8131 (Office)
202-882-1727 (Fax)
mbrooks@dmvpmc.com
Dominion Mechanical
5265 Port Royal Rd
Springfield, VA 22151
  • Paul Woody
  • Mondo L. Brooks
703-922-9588 (Office)
info@dominionmc.com
Emcor Government Services
121 Dia Access Rd SW
Naval Anacost Annex, DC 20373
Scott Beers 202-553-1740 (Office)
Envise Company
21670 Ridgetop Circle, Suite 100
Sterling, VA 20166
Jack T Schoen 571-612-4042 (Office)
800-971-4945 (Office)
571-334-0879 (Cell)
rhazzard@enviseco.com
Fields Plumbing
7127 Allentown Rd, Ste. 207-B
Fort Washington, MD 20744
  • William Taylor
301-433-0180 (Office)
301-433-0894 (Fax)
Fieldsplumbing_inc@yahoo.com
First Call Plumbing
3334 Mt Airy Ct
Davidsonville, MD 21035
  • Kevin Pezzuti
  • Stephen Pezzuti
  • Charles E. Nelson
  • Daryl Lomax
301-261-4605 (Office)
301-261-4557 (Fax)
Free Line Inc.
9244 East Hampton Drive Suite 607
Capitol Heights MD 20793
Che Gomez 301-658-6886 (Office)
301-363-2197 (Fax)
Fry Plumbing & Heating Corp
327 L St NE
Washington DC 20002
  • Michael Fry
  • Marc Fry
  • William J. Flippo
  • Branden Stallings
202-543-4884 (Office)
www.fryplumbing.com
fryplumbing@yahoo.com
GA Eberly
7157 Old Alexandria Ferry Rd
Clinton, MD 20735
  • Jo Eberly
  • Michael Roche
240-724-2322 (Office)
Terdhrdr1@aol.com
Gainesville Plumbing, LLC
7679 Limestone Drive, Unit 140
Gainesville, VA 20155
Kenneth M Critchfield
Michael Jones
571-248-8727 (Office)
571-248-8927 (Fax)
Helen.critchfield@gainesvilleplumbing.com
General & Mechanical Services
1007 Skidmore Drive
Annapolis, MD 21409
  • Tom Seymour
  • Larry Proctor
410-349-4070 (Office)
410-440-9011 (Cell)
410-349-4076 (Fax)
tseymour@gms-hvac.com
General Plumbing Services
2645 Garfield Ave
Silver Spring, MD 20910
Rodolfo Sanchez 301-408-3066 (Office)
GreCo Plumbing & Heating, Inc.
8408 Chervil Rd
Lanham, MD 20706
John Long 301-306-1991 (Office)
301-576-5667 (Fax)
customerservice@grecoplumbing.com
Harvey W. Hottel, Inc.
189001-A Woodfield Road
Gaithersburg, MD 20879-4717
  • Christopher Robertson
  • Michael Brandon
301-921-9599 (Office)
abarnsley@harveyhottel.com
Heffron Company
4940 Nicholson Court
Kensington MD 20895
Mark Uzarowski 301-816-2088(Office)
301-252-5605 (Mobile)
www.heffroncompany.com
J & J Plumbing Inc.
8326 26th Ave,
Adelphi, MD 20783
Michael Jackson (301) 422-6995 (Office)
J.P. Seworootor Inc.
5350 Odell Rd
Beltsville MD 20705
Joshua Masiello 301-595-8900 (Office)
301-937-1636 (Fax)
Jps.inc@verizon.net
J.W.Burton Co., LLC
PO Box 3024
Prince Frederick, MD 20678
James Burton 443 532 5253 (Cell)
hwburtonco@yahoo.com
J.W. Plumbing
26410 Hummingbird way
Mechanicsville, MD 20659
Joseph Weiss 240-925-8845 (Office)
plumbing.by.jw@gmail.com
James J. Madden, INC.
6872 Distribution Drive
Beltsville, MD 20705
  • Mitchell W. Willett, Jr M
  • Robert Parsons
  • Stuart A Tolley
301-937-1000 (Office)
301-937-3333 (Fax)
hjanoske@jamesjmadden.com
JCM Associates
301 Prince George's Blvd
Upper Marlboro, MD 20744
Charles Chisley 301-390-5502 (Office)
Jerry's Plumbing & Heating
11822 Pika Drive
Waldorf, MD 20602
Kelly Krick 240-222-3205 (Office)
Deason49721@yahoo.com
JF Plumbing & Heating, Inc
15751 Crabbs Beach Way
Derwood, MD 20855
  • Michael Lizear
  • Matthew Brady
301-840-3830(Office)
301-840-3831 (Fax)
Jones & Wood, Inc
1702 Minnesota Ave SE
Washington, DC 20020
  • Ellis S Jones
  • Alfred Jordan
  • Dwayne C Williams
  • Eric Brooks
  • Jamar Gross
  • Kelvin D Chew
  • Milton L Willett
  • Reginald Berry, Sr
  • Richard Lyon
  • Robert Berry
  • Sheldon Willett
202-678-4035 (Office)
202-678-4038 (Fax)
Jones_wood_inc@yahoo.com
Jones Mechanical LLC
7002 Old Bayside Drive
Chesapeake Beach MD 20732
Jamil S Jones 240-375-7748 (Office)
Meally1@yahoo.com
JPG Plumbing
6700 E Distribution Drive
Beltsville, MD 20705
  • Marc S. Gluck
  • Shawn Higgins
240-241-5060 (Office)
240-241-5055 (Fax)
jgeiling@jpgplumbing.com
KG Johnson Inc
4520 Mack Ave.
Frederick, MD 21703
Dean McMillion 301-698-9805 (Office)
cpfeffer@kgjohnson.com
Kirlin Mechanical Services LLC
515 Dover Rd suite 2700
Rockville, MD 20850
Paul Staiger 301-424-3410 (Office)
301-605-1853 (Office)
240-743-7548 (Cell)
Krick Plumbing & Heating, Co.
5011 46TH Ave
Hyattsville, MD 20781
  • James Grier
  • Richard Grier
  • George McDonald
301-927-5284 (Office)
301-927-2728 (Fax)
Kwang Lee Construction, Inc.
941 Highams Court
Woodbridge VA 22191
SooMee Branco 703-494-1373 (Office)
703-494-1374 (Fax)
L.E. Diggs Plumbing & Heating LLC
15107 Jerimiah Lane
Bowie, MD 20721
Lagrand E Diggs 301-218-4700 (Office)
301-218-4558 (Fax)
diggsplumbing.com
LG Knoch Plumbing & Heating, LLC
1393 Ogg Drive
Westminister, MD 21157
Lawrence Knoch, Jr. 410-876-6920 (Office)
410-848-9529 (Fax)
Magnolia Companies Inc.
600 Gallatin St., NE
Washington, DC 20017
  • Andrew Welch
  • Brian Schwartz
  • Mike Kromer
  • Robert Kaiser
  • Anthony Nicholas Migliaccio
  • Ryan Green
202-552-6711 (Office)
johnm@magnolia-companies.com
Mahon Plumbing Inc.
6824 Ft Smallwood Rd
Baltimore MD 21226
Gregory P Mahon Hurley 410-636-7944 (Office)
Mallick Plumbing and Heating, Inc
8010 Cessna Avenue
Gaithersburg, Maryland 20879
  • Mark Tracy
  • Robert L Breen
301-840-5860 (Office)
301-840-5878 (Fax)
Maryland Plumbing and Heating
10176 Baltimore National Pike
Ellicott City, MD 21042
Lawrence Knoch, Jr. 410-461-5977 (Office)
410-750-2507 (Fax)
Maryland Plumbing and Heating
7610-X Rickenbacker Drive
Gaithersburg, MD 20879
  • Alexander Diaz
  • Sami Mustafa
301-990-2891 (Office)
www.call4plumber.com
McNulty Mechanical, LLC
334 Stonewall Rd
Catonsville, MD 21228
Shane Fuegel 410-869-0111 (Office)
Mech-Flow Corporation
9604 Norfolk Ave.
Laurel, MD 20723
Andrew Migasiuk 301-490-7825 (Office)
Andrew@mech-flow.com
Meckley Services, Inc
5703 George Washington Dr, Suite O
Alexandria, VA 22312
William Bedenbaugh 703-333-2040 (Office)
410-717-6602 (Cell)
ap@meckleyservices.com
Michael and Son Services, Inc.
5740 General Washington Drive
Alexandria, VA 22312
Neal Eugene Dorsey 703-658-3998 (Office)
703-914-1793 (Fax)
Naumann Plumbing LLC
2131 Espey Court Suite 9
Crofton, MD 21114
Michael Naumann 410-451-6199(Office)
Nutwell P & H, Inc
9256 Luftschloss Drive
Pomfret MD 20675
Chris Trotter 301-899-3294 (Office)
301-702-0416 (Fax)
O'Connor Plumbing & Heating
19301 Mateny Hill Road
Germantown, MD 20874
Thomas O'Connor 301-540-5050 (Office)
ewaters@oconnorplumbing.net
Paramount Mechanical Corp.
7053 Gateway Court
Manassas, VA 20109
James Kelley 703-369-7952 (Direct)
chrissybeavers@paramount-mech.com
Patriot Backflow & Gas, Inc.
31 Tenbury Rd
Lutherville, MD 21093
  • David S Parsons, Snr
  • Russell Mellinger, Jr.
443-508-6157 (Office)
410-558-6513 (Fax)
PC Godaire, Inc.
PO Box 68
Damascus, MD 20872
Daniel Glogg II 301-428-7959 (Office)
Petrlik Plumbing, Inc.
6835 Ingraham St
Riverdale, MD 20737
Robert Petrlik 301-459-0935 (Office)
240-286-2987 (Cell)
bobpetrlik@erols.com
Pletsch Plumbing
16520 Abbey Dr
Bowie, MD 20715
  • Kelli Pletsch
  • Bruce Pletsch
301-805-7997 (Office)
Plumb Right Plumbing
9315 Mathis Ave
Manassas, VA 20110
Shelby A. Figaroore, Jr. 703-335-9102 (Office)
703-398-1270 (Fax)
plumbrightplumbing@gmail.com
Potomac Mechanical Contractors, Inc.
18915 Premiere Ct.
Gaithersburg, MD 20879
David R. Bassett 301-590-8164 (Office)
240-620-3562 (Cell)
301-590-8734 (Fax)
www.pmcmech.com
R&R Mechanical, Inc.
2902 Bladensburg Rd. NE
Washington, DC 20018
Vincent J. Browning 202-636-9451 (Office)
R.A. Gray Plumbing
4602 Emerson St
Hyattsville, MD 20781
Jeffrey Lanouette 301-277-5900 (Office)
301-277-5903 (Fax)
Rasco, Inc.
1635-2 Woodside Drive
Woodbridge, VA 22191
Carey L Ball 703-643-2952
cbachmann@rascoengineers.com
Real Plumbers
7321 Livingston Road
Oxon Hill, MD 20745
  • Jarmaine D. Dove
  • Abdul H. Muhammad
  • E. David Warner
301-567-2001 (Office)
301-567-2165 (Fax)
Ronco Mechanical Contractors, Inc.
8916 Simpson Lane
Clinton, MD 20735
Thomas S. Chen 301-868-6220 (Office)
301-868-1620 (Fax)
Saia Plumbing & Heating Co
16709 Norbrook Dr, Olney MD 20852
  • Emmanuel Alvarado
  • Martin Saia
  • Gary Meese
301-924-3600 (Office)
Saiaplumbing.com
Salco Mechanical Contractors
615 S. Stonestreet Av
Rockville, MD 20850
Stephen J. Exlbert 301-309-1800 (Office)
301-309-3811 (Fax)
Stephen@salcomech.net
Shapiro & Duncan Inc.
14620 Rothgeb Drive
Rockville MD 20850
Robert K Hurley
David E Wensel
301-315-6260 Ext 2165(Office)
301-315-8983 (Fax)
Smithsonian Institution
1000 Constitution Ave NW
Washington DC 20004
  • Tomas Rodriquez
  • Curtis Kirkland
202-633-1570 (Office)
brenchley@si.edu
Southland Industries
22340 Dresden St, Suite 177
Sterling, VA 20166
  • Jack T Schoen
  • Brandon Myers
703-834-5570 (Office)
571-237-6276 (Cell)
Bmyer@southlandind.com
Spadaro Plumbing & Heating.
57584 Tuxedo Rd
Hyattsville, MD 20781
David P. Spadaro
Jason P. Spadaro
301-779-4455 (Office)
301-772-3059 (Fax)
Spartan Plumbing
3708 Bladensburg Rd
Brentwood, MD 20722
Anthony Harding 301-864-7400 (Office)
301-864-9091 (Fax)
Superior Mechanical Services
6655 Mid Cities Ave
Beltsville, MD 20705
  • Lee A Lutz
  • Andrew Weir
  • Bobby Butler
  • Sarbelio Manzanares
  • Johnny H. Cobo Lascano
  • Warren B. Anderson
  • Andrew M. Barnes
  • Aaron A. Johns
  • Dave J. Collinsworth
  • Richard K. Arnold
  • Steven M. Barthlow
  • Michael A. Huggins
  • Billy D. Williams
  • David Thompson
  • Todd W. Rolen
  • John Sanitistevan
301-931-0100 (Office)
301-931-0800 (Fax)
sspeigle@superiormech.net
Thomas E. Clark, Inc
2412 Linden Lane
Silver Spring, MD 20910
Efren Iglesias 301-608-0550 (Office)
301-608-8939 (Fax)
Thomas Plumbing & Heating
13211 Hathaway Drive
Silver Spring, MD 20906
Michael J. Thomas 301-933-5995 (Office)
mjthomas@yahoo.com
Tyler Mechanical Contracting
10087 Tyler Place, Hyatt Park No.2
Ijamsville, MD 21754
John Fouche 301-831-8696 (Office)
deborahgiron@tylerco.com
Uneeda Plumbing & Bath Remodeling, LLC
18200 New Hampshire Ave
Ashton, MD 20861
  • Lynn R. Schilling
  • Robert L. Mogart
301-946-4317 (Office)
United Backflow LLC
P.O. Box 543
Finksburg, MD 21048
Brian Douglass 410-861-5102 (Office)
866-253-6861 (Fax)
www.unitedbackflow.com
W. E. Bowers
12401 Kiln Court
Beltsville,MD 20705
  • Stephen Parreco
  • Michael Hall
  • Greg Guettler
  • Michael Jackowski
  • John Brown
  • Richard Chroniger
  • Thomas R. McDowell
301-419-2488 (Office)
W. L. Gary Company, Inc.
225 Vine St.
NW Washington, DC 20012
  • William Andrew Fulton
  • Donique L Jones
  • James R Born
  • Shawn M Campbell
  • Randall W Greer
202.723.0676 (Office)
202.723.0409 (Fax)
www.wlgary.com
W. M. Schlosser
2400 51 St. Pl.
Hyattsville, MD 20781
Douglas Printz 301-773-1300 (Office)
301-773-9263 (Fax)
info@wmschlosser.com
WCS Construction, LLC
3303 Stanton Road, SE
Washington, DC 20020
Robert Hobbs 202-889-3615 (Office)
202-889-8875 (Fax)
www.wcsconstruction.com
Walls Plumbing Huntingtown Inc,
1899 Emmanuel Church Rd,
Huntingtown, MD 20639
Gerald A Hanken 410=535-2117 (Office)
Walls85plumbing@verizon.net
Welch & Rushe
391 Prince George's Blvd.
Upper Marlboro, MD 20774
  • Joseph Buffano
  • Daniel C. Frey
  • 301-430-6000 (Office)
    301-430-8773 (Fax)
    bjanoske@welchandrushe.com
    Windsor Plumbing Inc
    2905 Chestnut Drive
    Waldorf, MD 20603
    James Windsor 301-440-7455 (Office)
    windsorplumbing@comcast.net
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