Where We Work
Explore 27 community pages and the full list of ZIP codes Mallick serves below. Call to confirm service at your address. Emergency calls are answered 24/7.
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Our Service Map
See Where We Work
The map highlights our core Maryland and Washington, DC communities. Select a pin to explore a local page, or check the full ZIP code list below.
Pick Your Town
Every Community We Cover
Each page highlights the plumbing considerations specific to that community, including local water providers, permitting requirements, and the types of plumbing systems commonly found in local homes.
Montgomery County
Frederick & Howard County
DC & Prince George's
Check Your Area
ZIP Codes We Serve
Mallick provided these 198 service ZIP codes. Open your area below to find yours. Call us to confirm scheduling and availability for your exact address.
Maryland (129)
- 20697
- 20704
- 20705
- 20707
- 20709
- 20712
- 20723
- 20725
- 20726
- 20738
- 20740
- 20741
- 20742
- 20759
- 20763
- 20770
- 20777
- 20782
- 20783
- 20787
- 20788
- 20797
- 20810
- 20811
- 20812
- 20813
- 20814
- 20815
- 20816
- 20817
- 20818
- 20824
- 20825
- 20827
- 20830
- 20832
- 20833
- 20837
- 20838
- 20839
- 20841
- 20842
- 20847
- 20848
- 20849
- 20850
- 20851
- 20852
- 20853
- 20854
- 20855
- 20857
- 20859
- 20860
- 20861
- 20862
- 20866
- 20868
- 20871
- 20872
- 20874
- 20875
- 20876
- 20877
- 20878
- 20879
- 20880
- 20882
- 20883
- 20884
- 20885
- 20886
- 20889
- 20891
- 20892
- 20894
- 20895
- 20896
- 20897
- 20898
- 20899
- 20901
- 20902
- 20903
- 20904
- 20905
- 20906
- 20907
- 20908
- 20910
- 20911
- 20912
- 20913
- 20914
- 20915
- 20916
- 20918
- 20993
- 20997
- 21029
- 21036
- 21042
- 21043
- 21044
- 21045
- 21046
- 21104
- 21150
- 21701
- 21702
- 21703
- 21704
- 21710
- 21717
- 21723
- 21737
- 21738
- 21754
- 21765
- 21769
- 21770
- 21771
- 21774
- 21777
- 21784
- 21790
- 21793
- 21794
- 21797
Washington, DC (53)
- 20001
- 20002
- 20003
- 20004
- 20005
- 20006
- 20007
- 20008
- 20009
- 20010
- 20011
- 20012
- 20015
- 20016
- 20017
- 20018
- 20024
- 20033
- 20036
- 20037
- 20038
- 20045
- 20052
- 20053
- 20057
- 20059
- 20064
- 20202
- 20204
- 20228
- 20230
- 20240
- 20245
- 20260
- 20307
- 20317
- 20319
- 20390
- 20405
- 20418
- 20427
- 20506
- 20510
- 20511
- 20520
- 20535
- 20540
- 20551
- 20553
- 20560
- 20565
- 20566
- 20593
Northern Virginia (16)
- 20146
- 20149
- 20163
- 20167
- 20192
- 20195
- 20196
- 22067
- 22095
- 22096
- 22103
- 22106
- 22107
- 22108
- 22109
- 22183
Worth Knowing
Where The County Line Changes The Job
Maryland does not have one answer for any of this. WSSC Water bills and permits across Montgomery and Prince George’s. Frederick City and Frederick County run their own. Howard County has its own bureau, and DC Water covers the District.
That is four different permitting authorities inside one service area, and it changes who inspects the work, how long it takes to schedule, and occasionally what is allowed to be installed. It is also why a plumber who works one county is not automatically set up to work the next.
We pull the permit as part of the job rather than leaving it with the homeowner, whichever authority it belongs to.
Not sure if we reach you? Call and ask.
The community pages and ZIP codes above are a guide. If you are unsure about your address, our office will tell you whether we can help.