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Licensed contractors in Gaithersburg, VA

252 active licenses list Gaithersburg as their address in Virginia DPOR's regulant lists for Class A, B and C contractors and licensed tradesmen, refreshed every five business days, file dated November 9, 2026.

Before you hire anyone on this list

  • Confirm the license on the official site. Our copy is a snapshot; the state's record is live and shows complaints.
  • Make sure the name on your contract matches the name on the license.
  • Check the license type covers your job. A roofing license doesn't cover electrical work.

How to check a contractor in Virginia, step by step

Tradesman: Master electrician 26

Class A contractor: Residential building, Commercial building 24

Tradesman: Master HVAC 17

Class A contractor: Electrical 15

Class A contractor: Home improvement 13

Class A contractor: Residential building 13

Tradesman: Master plumber, Master gas fitter 8

Other license types 136

  • Advanced Plumbing and Drain Services LLC Class A contractor: Plumbing, Gas fitting · #2705150788 · expires September 30, 2027
  • Advanced Restoration Solutions LLC Class B contractor: Home improvement · #2705176315 · expires June 30, 2027
  • Advanosys LLC Class A contractor: Electronic/communication service · #2705192076 · expires June 30, 2028
  • Allegheny Builders & Contractors INC Class A contractor: Commercial building, Residential building · #2705035814 · expires September 30, 2028
  • Alpine Services INC Class A contractor: Recreational facility, Highway/heavy · #2705024484 · expires June 30, 2028
  • Amco Metal Products INC Class A contractor: Glass and glazing · #2705175145 · expires August 31, 2028
  • American Service and Installation Corporation Class A contractor: Commercial improvement, Home improvement · #2705174530 · expires January 31, 2028
  • Amilcar J Fuentes Tradesman: Journeyman electrician · #2710087432 · expires March 31, 2029
  • Anthony O Nwosu Tradesman: Master gas fitter, Master plumber · #2710087685 · expires April 30, 2029
  • Area Construction Group INC Class A contractor: Electrical, Commercial improvement · #2705115232 · expires March 31, 2028
  • Artitech INC Class A contractor: Residential building, Commercial building and 3 more · #2705091623 · expires February 28, 2027
  • B & R Associates Class A contractor: Residential building, Commercial building and 1 more · #2701020429 · expires February 28, 2027
  • Balchun Construction LLC Class B contractor: Home improvement · #2705117800 · expires August 31, 2027
  • Berry Electrical Service Group LLC Class B contractor: Electrical · #2705156290 · expires May 31, 2027
  • Bilmin Company INC Class A contractor: Plumbing, Gas fitting and 1 more · #2701033622 · expires February 28, 2027
  • Blair Enterprises INC Class A contractor: Painting and wallcovering, Commercial improvement · #2705142112 · expires July 31, 2027
  • Bogan & Associates LLC Class A contractor: Electrical, Fire alarm systems · #2705155459 · expires May 31, 2028
  • Boland Trane Services INC Class A contractor: Commercial improvement, HVAC · #2701017861 · expires December 31, 2027
  • Brax Roofing INC Class B contractor: Roofing · #2705168455 · expires March 31, 2027
  • Bryant Group INC Class A contractor: Plumbing, Gas fitting and 1 more · #2705130262 · expires September 30, 2027
  • Busy Ditch INC Class A contractor: Highway/heavy · #2705034589 · expires June 30, 2028
  • C & G Carpentry Services INC Class A contractor: Commercial building, Residential building and 5 more · #2705134249 · expires June 30, 2028
  • Capital Carpets Incorporated Class A contractor: Commercial improvement, Home improvement and 1 more · #2705114134 · expires May 31, 2027
  • Casey Construction Group LLC Class A contractor: Painting and wallcovering, Concrete and 1 more · #2705147842 · expires August 31, 2028
  • Castro Property Management INC Class A contractor: Electrical, Plumbing and 2 more · #2705178236 · expires January 31, 2027
  • Cenergetix LLC Class C contractor: Electrical · #2705162767 · expires December 31, 2026
  • Chapin Residential & Commerical LLC Class A contractor: Commercial improvement, Home improvement · #2705115166 · expires May 31, 2027
  • Charles C Knaack Tradesman: Journeyman electrician · #2710083106 · expires September 30, 2027
  • Charles Thomas Gordon IV Class A contractor: Electronic/communication service · #2705156305 · expires March 31, 2027
  • Christian M George Tradesman: Master plumber · #2710087959 · expires July 31, 2029
  • Commercial Exteriors INC Class A contractor: Roofing · #2705161883 · expires April 30, 2027
  • Concrete General INC Class A contractor: Home improvement, Highway/heavy · #2701019479 · expires September 30, 2027
  • Cpp Construction Company Class A contractor: Highway/heavy · #2705135552 · expires August 31, 2028
  • Cryo Associates INC Class A contractor: Equipment/machinery · #2705162638 · expires February 28, 2027
  • D D & B Construction INC Class A contractor: Residential building, Commercial building and 2 more · #2701021772 · expires October 31, 2028
  • D M R Associates INC Class B contractor: HVAC · #2705001260 · expires May 31, 2027
  • D T M INC Class B contractor: Drywall · #2705188089 · expires April 30, 2028
  • David C Kerrigan Tradesman: Journeyman HVAC · #2710060908 · expires August 31, 2028
  • David U Stang & Son INC Class B contractor: Plumbing, Gas fitting · #2705041411 · expires September 30, 2027
  • Delmar Plumbing LLC Class A contractor: Plumbing, Gas fitting · #2705152835 · expires February 29, 2028
  • Densel Company Class A contractor: HVAC · #2701036869 · expires January 31, 2028
  • Diaz Electric LLC Class B contractor: Electrical · #2705191077 · expires May 31, 2028
  • Diversified HVAC Services INC. Class A contractor: HVAC · #2705180332 · expires October 31, 2027
  • Douglas E Brown Tradesman: Journeyman HVAC · #2710060911 · expires August 31, 2028
  • Dream Exterior INC Class A contractor: Commercial improvement, Home improvement · #2705113999 · expires October 31, 2027
  • E I Kane Construction INC Class A contractor: Commercial improvement · #2705044673 · expires May 31, 2028
  • Eiggil Construction INC Class A contractor: Highway/heavy · #2705179580 · expires July 31, 2027
  • Electrical Style Services LLC Class B contractor: Electrical · #2705151072 · expires June 30, 2027
  • Emmanuel E Williams Jr Tradesman: Journeyman plumber, Journeyman gas fitter · #2710081438 · expires April 30, 2027
  • Ers Construction LLC Ers Construction Va LLC Class B contractor: Landscape service · #2705194494 · expires March 31, 2027
  • Eusebiu S Balan Tradesman: Master electrician, Journeyman electrician · #2710046457 · expires November 30, 2028
  • Excell Contractors INC Class A contractor: Residential building, Commercial building and 2 more · #2705105911 · expires July 31, 2027
  • Exterior Remodeling INC Class A contractor: Roofing · #2705196682 · expires December 31, 2027
  • Free Flow INC Class A contractor: HVAC · #2705131676 · expires November 30, 2027
  • G S Remodeling INC Class A contractor: Commercial building, Residential building and 5 more · #2705109900 · expires September 30, 2028
  • Garcia S Mechanical LLC Class A contractor: Plumbing, Gas fitting · #2705181082 · expires September 30, 2027
  • Glickman Design Build LLC Class A contractor: Commercial building, Residential building and 1 more · #2705130891 · expires November 30, 2027
  • Global Construction & Mechanical LLC Class A contractor: HVAC · #2705172424 · expires June 30, 2027
  • Global Services & Systems INC Class A contractor: Commercial building, Residential building and 2 more · #2705091824 · expires February 28, 2027
  • Gustavo Del Granado Tradesman: Master electrician, Journeyman electrician · #2710051412 · expires January 31, 2028
  • Harvey W Hottel INC Class A contractor: Plumbing, Electrical and 2 more · #2701003175 · expires May 31, 2027
  • Henley Construction Co INC Class A contractor: Commercial building, Residential building · #2701011695 · expires March 31, 2027
  • Highway and Safety Services INC Class A contractor: Residential building, Commercial building and 1 more · #2705021377 · expires July 31, 2027
  • Hong Sung Ahn Class A contractor: HVAC · #2705120986 · expires March 31, 2028
  • Hope Builders LLC Class A contractor: Commercial building, Residential building and 2 more · #2705025142 · expires August 31, 2028
  • Human Circuit INC Class A contractor: Electronic/communication service · #2701018888 · expires May 31, 2027
  • Hurst Plumbing INC Class B contractor: Plumbing, Gas fitting · #2705121530 · expires October 31, 2028
  • HVAC Precision Services INC Class A contractor: Plumbing, Gas fitting and 1 more · #2701027409 · expires February 29, 2028
  • Ian R Jolles Tradesman: Master plumber, Master HVAC and 1 more · #2710056568 · expires July 31, 2028
  • Interstate Corporation Class A contractor: Commercial improvement, Home improvement · #2705048696 · expires March 31, 2027
  • Ion Jechiu Tradesman: Master electrician, Journeyman electrician · #2710051199 · expires December 31, 2027
  • Islas General Cleaning Services INC Class C contractor: Asbestos · #2705188198 · expires December 31, 2027
  • Jad Electric LLC Class C contractor: Electrical · #2705192551 · expires July 31, 2028
  • James M Lee Tradesman: Journeyman electrician · #2710088762 · expires September 30, 2029
  • Jbi Services LLC Class C contractor: Plumbing, Electrical and 1 more · #2705165456 · expires December 31, 2027
  • John Francis Lloyd Klien Class C contractor: Electrical · #2705191686 · expires May 31, 2028
  • Johnny A Mcfarlane Tradesman: Journeyman electrician · #2710058636 · expires November 30, 2029
  • Johnson Floors LLC Class A contractor: Flooring · #2705191436 · expires November 30, 2026
  • Jorge I Romero Caffi Tradesman: Master plumber · #2710080236 · expires December 31, 2026
  • Jt Associates II LLC Class A contractor: Commercial improvement · #2705180243 · expires September 30, 2027
  • K & B Plumbing & Heating INC Class A contractor: Plumbing, Gas fitting · #2705087515 · expires August 31, 2028
  • Kevco Building Services INC Class C contractor: Commercial improvement · #2705096939 · expires June 30, 2027
  • Keystone Building and Restoration LLC Class A contractor: Commercial improvement, Home improvement · #2705178956 · expires August 31, 2027
  • Mallick Mechanical Contractors INC Class A contractor: Plumbing, Gas fitting and 1 more · #2705045283 · expires June 30, 2028
  • Mario G Shaheen Tradesman: Master HVAC, Journeyman HVAC and 1 more · #2710044884 · expires February 29, 2028
  • Marvin Mejia Class B contractor: Home improvement · #2705187262 · expires March 31, 2028
  • Maryland Applicators LLC Class A contractor: Drywall · #2705193947 · expires December 31, 2026
  • Mileham & King INC Class A contractor: Commercial improvement · #2705009633 · expires February 28, 2027
  • Milton M Rios Reyes Tradesman: Master plumber · #2710085845 · expires October 31, 2029
  • Mina Enterprises INC Class C contractor: Residential building, Commercial building and 3 more · #2705095609 · expires May 31, 2027
  • Mohammad Afrakhteh Class C contractor: Home improvement · #2705133260 · expires April 30, 2028
  • Mynor Sosa Class C contractor: Painting and wallcovering, Commercial improvement and 1 more · #2705126670 · expires March 31, 2027
  • Nac Mechanical Services LLC Class A contractor: HVAC · #2705169316 · expires August 31, 2028
  • Natelli Homes LLC Class A contractor: Commercial building, Residential building and 1 more · #2705085446 · expires September 30, 2028
  • Nathaniel F Vaughn Tradesman: Master plumber · #2710031615 · expires November 30, 2028
  • National Abatement and Wrecking LLC Class A contractor: Asbestos · #2705164792 · expires July 31, 2027
  • Nazco Enterprises INC Class A contractor: Commercial improvement · #2705174365 · expires November 30, 2028
  • Nikolay B Lorinkov Tradesman: Master electrician, Journeyman electrician · #2710040937 · expires June 30, 2028
  • P T Blooms LLC Class A contractor: Commercial building · #2705201999 · expires September 30, 2028
  • Paac Construction INC Class A contractor: Commercial building · #2705193105 · expires November 30, 2026
  • Pcc Construction Components INC Class A contractor: Commercial building, Residential building · #2705026539 · expires June 30, 2027
  • Perfect Fit Window Fashions INC Class B contractor: Home improvement · #2705109541 · expires August 31, 2028
  • Perfect Glassworks LLC Class A contractor: Glass and glazing · #2705146529 · expires October 31, 2027
  • Phoenix Electrical Technologies INC Class A contractor: Commercial building, Residential building and 1 more · #2705121583 · expires April 30, 2028
  • Piro Demirxhiu Tradesman: Journeyman electrician · #2710076180 · expires December 31, 2027
  • Potomac Mechanical Contractors INC Class A contractor: Plumbing, Gas fitting and 1 more · #2701037270 · expires August 31, 2028
  • Potomac Quality Construction INC Class A contractor: Commercial building, Residential building · #2705105328 · expires May 31, 2028
  • Potomac Surfaces LLC Class A contractor: Commercial improvement · #2705178082 · expires January 31, 2027
  • Prabhath I Hewa Tradesman: Master plumber, Journeyman plumber · #2710048670 · expires September 30, 2029
  • Presidential Heating & Air Conditioning INC Class B contractor: HVAC · #2705154610 · expires August 31, 2028
  • Prisma LLC Class A contractor: Commercial improvement · #2705178813 · expires March 31, 2027
  • Quality Kitchens & Appliances INC Class C contractor: Plumbing, Gas fitting · #2705035083 · expires August 31, 2028
  • Scanbuild LLC Class B contractor: Home improvement · #2705173793 · expires November 30, 2027
  • Selective Demolition LLC Class A contractor: Commercial building, Residential building and 1 more · #2705107495 · expires June 30, 2028
  • Sezar G Lizama Tradesman: Journeyman HVAC · #2710087620 · expires July 31, 2029
  • Shanco Companies LLC Class A contractor: Commercial improvement, Home improvement · #2705075471 · expires May 31, 2027
  • Socrates Palacios Tradesman: Master electrician, Journeyman electrician · #2710047235 · expires October 31, 2029
  • Sonic LLC Class A contractor: Commercial improvement, Home improvement · #2705134544 · expires June 30, 2028
  • Steven A Halso Tradesman: Journeyman HVAC · #2710063762 · expires June 30, 2029
  • Steven D Harlow Tradesman: Master HVAC, Master gas fitter · #2710067341 · expires January 31, 2029
  • Stone Works INC Class A contractor: Home improvement, Highway/heavy · #2705049654 · expires April 30, 2027
  • Systems 4 INC Class A contractor: Electronic/communication service · #2705058072 · expires September 30, 2028
  • Tazz Construction INC Class A contractor: Commercial building · #2705163606 · expires September 30, 2027
  • Tex/Am Construction Co INC Class A contractor: Commercial building, Residential building and 1 more · #2705106434 · expires May 31, 2028
  • The Korth Companies INC Class A contractor: Commercial building · #2701024962 · expires August 31, 2027
  • Thirdwall Construction LLC Class A contractor: Commercial building · #2705191904 · expires October 31, 2028
  • Tomkat Construction LLC Class A contractor: Painting and wallcovering, Concrete and 2 more · #2705139800 · expires April 30, 2027
  • Triple J Construction INC Class A contractor: Landscape service, Commercial building and 4 more · #2701039081 · expires September 30, 2027
  • United Construction & Restoration INC Class A contractor: Alternative energy systems, Roofing · #2705161698 · expires August 31, 2028
  • Vision Construction & Developers LLC Class A contractor: Home improvement, Flooring and 1 more · #2705165030 · expires April 30, 2027
  • Wiipower Electrical & Design LLC Class C contractor: Electrical · #2705181392 · expires October 31, 2027
  • William C Dellapenna Tradesman: Journeyman electrician · #2710084826 · expires May 31, 2028
  • Willkrist Contracting INC Class A contractor: Electrical, Commercial improvement and 3 more · #2705058189 · expires December 31, 2026
  • Yim and Yu Construction INC Class B contractor: Plumbing, Commercial improvement and 2 more · #2705131875 · expires December 31, 2027
  • Zhong H Yu Tradesman: Master HVAC, Master plumber and 2 more · #2710080842 · expires July 31, 2027
  • Zhong Total Home Improvement LLC Class A contractor: Gas fitting, Plumbing and 2 more · #2705191102 · expires May 31, 2028

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