Delaware Contractor Licenses

Contractors bidding on jobs over $50,000 must apply for a license. If you don’t have a Delaware plumber’s license, you will need a license to contract for pump installer work.

Contractor License Lookup in Delaware

Where do you go when you want to lookup the license of a contractor in Delaware? To find out if an asbestos worker is certified, call (302) 739-5644. To find out if an electrician, plumber or HVAC contractor is licensed in Delaware, click here.


To do business in Delaware as a contractor or subcontractor, you must get a license from the Delaware Division of Revenue. If you’re a non-resident, you’ll also need a surety bond for 6% of any contract work you do totaling $20,000 or more within a calendar year. Before you can bid on a job over $50,000 you must apply for a license. To apply for a license, contact:

Division of Revenue
Carvel State Building
820 North French Street
Wilmington, DE 19801
(302) 577-5800
(800) 202-7826 (Delaware only)
http://revenue.delaware.gov/

The Business License Form is available online at http://www.state.de.us/dedo/small_business.html.

The license will cost you $75 per year.


Asbestos Abatement Certifications

Unless you’re working on your own single family dwelling, you have to be certified to handle asbestos in Delaware. However, the state has two classes of asbestos work — Class A which is for a business whose primary work is asbestos abatement, and Class B for a business that can reasonably expect some of its projects to involve asbestos abatement. Examples of Class B are roofing/siding contractors and plumbing/HVAC contractors. To apply for certification, contact:

Division of Facilities Management
Asbestos Office
540 S. Dupont Hwy.
Dover, DE 19901
(302) 739-5644
http://dfm.delaware.gov/envsrv/asbestos/apps.shtml

Delaware requires all asbestos supervisors and workers to have a:

  • routine physical exam within year of certification
  • pulmonary function test
  • “B” Reader chest x-ray
  • appropriate training course approved by Delaware
  • CPR card (for supervisors only)

Asbestos abatement certification: Supervisor certification costs $50 and worker certification is $25. Both are good for one year. Class A and class B contractor certifications each cost $100.

If you’ve had asbestos training in a U.S. EPA Region III state, Delaware may accept it under reciprocity. These states are Maryland, Pennsylvania, Virginia, West Virginia, Philadelphia, Allegheny County and the District of Columbia.


Electrician’s Licenses

Delaware issues licenses for general master electricians, limited master electricians, and specialty electricians. The categories of specialty licenses are air conditioning/heating and elevators. To apply for a license, contact:

Division of Professional Regulation
Board of Electrical Examiners
861 Silver Lake Boulevard, Ste 203
Dover, DE 19904
(302) 744-4500
Fax: (302) 739-2711
http://dpr.delaware.gov/boards/electrician/index.shtml

Here are the requirements for the electrical licenses:

Master Electrician: Four years full time work experience and two years education after high school graduation or no education and six years full time work experience

Master Limited: Three years full time practical training or proof of 4,000 hours of full time experience, plus 288 hours of related instruction

Master Electrician Special: Six years full time work experience or proof of 8,000 hours of full time experience

Limited Electrician Special: Three years full time work experience

The Board requires you to pass an exam to get a license. It’s an open book exam on the NFPA-70 National Electrical Code book. The exam is four hours long with 100 multiple choice questions for the master electrician’s general license and three hours long with 60 questions for the limited license. Here’s a percentage breakdown of the subjects on the exam by license type:

Master Electrician
Subject % of Questions
General knowledge and calculations 10
Raceways and enclosures 10
Services, feeders and branch circuits 10
Overcurrent protection 5
Conductors and cables 9
Grounding and bonding 16
Utilization and general use equipment 5
Special occupancies 6
Motors and controls 12
Low voltage and communication circuits 6
Safety 3
Limited Electrician
Subject % of Questions
Theory 15
General electrical knowledge 5
Wiring protection 25
Wiring methods and materials 20
Equipment for general use 15
Special occupancies 5
Special equipment 5
Special conditions 5
Safety 5
Electric Sign
Subject % of Questions
General electrical knowledge 10
Wiring and protection 20
Wiring methods and materials 20
Equipment for general use 20
Special occupancies 10
Special equipment 20
Swimming Pools
Subject % of Questions
General electrical knowledge 10
Wiring and protection 20
Wiring methods and materials 20
Equipment for general use 15
Special occupancies 5
Special equipment 20
Special conditions 5
Safety 5
Elevator
Subject % of Questions
General electrical knowledge 10
Wiring and protection 20
Wiring methods and materials 20
Equipment for general use 15
Special occupancies 5
Special equipment 15
Special conditions 5
Communication systems 5
Safety 5

Exams are given by:

Thomson Prometric
1260 Energy Lane
St. Paul, MN 55108
(800) 626-0750
http://www.prometric.com

After you take the exam, Prometric will send your score directly to the Board. If you scored at least 75%, the Board will send you their information packet on how to proceed to get your license.

Electrican’s license fees: It will cost you $10 nonrefundable to file an application for a license. The exam costs $60 nonrefundable. Check with Prometric to find out if they’ve got a practice exam available for purchase. A license is good for two years. However the two-year period is set by the Board so your license and its cost will depend on when you get it.

If you have a license in another state, you may qualify for a license in Deleware. You will have to submit a copy of the reciprocal state’s current requirements and regulations. If the board finds the state’s requirements substantially similar, you will need to show verification of licensure or good standing, pay the application fee of $22 and the prorated license fee.

Recommended Reading for the Electrical Exam


NFPA 70 – National Electrical Code, National Fire Protection Association, 1 Batterymarch Park, P.O. Box 9101, Quincy, MA 02269

Alternating Current Fundamentals, Duff and Herman, Delmar Publishers, P.O. Box 6904, Florence, KY 41022

Electric Motor Controls, Walter N. Alerich, Delmar Publishers, P.O. Box 6904, Florence, KY 41022

American Electricians Handbook, Croft/Summers, McGraw-Hill Inc., Box 543, Blacklick, OH 43004-0543

You can get these books from:

Builders’ Book Depot
1033 East Jefferson, Suite 500
Phoenix, AZ 85034
(800) 284-3434
http://www.buildersbookdepot.com/


Plumber’s Licenses

Delaware issues licenses for:

Original licensure – Journeyman Certificate

  • Submit a complete and notarized application and non-refundable application fee made payable to “State of Delaware.”
  • Applicants with a “Journeyman Certificate” issued by an approved plumbing apprenticeship program must submit a copy of the certificate and use the verification of employment form to verify two years of supervised work experience gained after receiving the certificate.

Original licensure – Supervised Work Experience

  • Before applying for a plumbing license, each applicant must have performed plumbing services for at least 7 years under the supervision of a licensed plumber and have completed and received a passing score on the Apprenticeship-By-Pass Examination. To take this examination, contact one of the schools listed below. An official copy of the passing score must be forwarded to the Board office:
New Castle County
Pete Salvatore
DelCastle Technical H.S. (302) 995-8024
Kent County
Rod Bullock
PolyTech H.S. (302) 697-3255
Sussex County
Bill Feher
Delaware Tech, Georgetown (302) 856-9035
  • Submit a complete and notarized application and  the non-refundable application fee made payable to “State of Delaware.”
  • Applicants with 7 years of supervised work experience must submit proof of supervised work experience by using the verification of employment form.

Contact:

Division of Professional Regulation
Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners
861 Silver Lake Boulevard
Canon Building, Suite 203
Dover, DE 19904
(302) 744-4500
http://dpr.delaware.gov/boards/plumbers/index.shtml

Exams are given by:

Thomson Prometric
1260 Energy Lane
St. Paul, MN 55108
(800) 626-0750
http://www.prometric.com

Master plumber’s exam subjects:

Subject % of Questions
General knowledge 16
General regulations 18
Plumbing fixtures 10
Water supply systems 14
Drainage, waste and sanitary vents 14
Indirect waste 3
Specialty plumbing

4

Roof drain piping 3
Isometric analysis 20

After you take the exam, Prometric will send your score directly to the Board. If you scored at least 75%, the Board will send you their information packet on how to proceed to get your license.

Plumber’s license fees: The processing fee is determined by the date on the postmark of the mailing date of the application. Check with the Board for the fee schedule. The exam costs $70 nonrefundable.

Recommended Reading for the Plumber’s Exam


International Plumbing Code, International Code Council, http://www.iccsafe.org

The Plumber’s Handbook, Craftsman Book Company 
http://www.craftsman-book.com

Plumbing Design and Installation, American Technical Publishers

Plumbing, American Technical Publishers

Excavation & Grading Handbook, Capachi, Craftsman Book Company
http://www.craftsman-book.com

OSHA Standards for the Construction Industry, 29CFR 1926

Print Reading for Construction, Walter C. Brown

Mathematics for Plumbers and Pipe Fitters, Thomson Delmar Learning


HVACR License

Delaware issues Master and Master HVACR Limited licenses. Limited categories include:

  • heating- forced air systems, ventilation, air conditioning and gas piping
  • heating- hydronic systems and gas piping
  • commercial hood systems
  • refrigeration

For details, contact:

Division of Professional Regulation
Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners
861 Silver Lake Boulevard
Canon Building, Suite 203
Dover, DE 19904
(302) 744-4500
http://dpr.delaware.gov/boards/plumbers/index.shtml

You will have to pass an exam for licensure. Contact the Board for details.

HVACR license fees: The processing fee is determined by the date on the postmark of the mailing date of the application. Check with the Board for the fee schedule.


Water Well Driller’s License

You need a license to perform contracting work for drilling, boring, coring, driving, digging construction, installation or repair of a well in Delaware.

Contact:

Department of Natural Resources and Environmental Control
Division of Water Resources
Water Supply Section
89 Kings Highway
Dover, DE 19901
(302) 739-4860
http://www.dnrec.state.de.us/

To qualify for a license you must be at least 18 years old and have at least two years related experience. The Board will review your application and references. Once you’re application is approved, you’ll be required to pass an exam at a time and date determined by the Board. The exam covers basic drilling methods, basic well construction and state laws and ordinances.

Water well contractors are required to carry and maintain the following contractor’s liability insurance coverage:
Bodily injury – $100,000 each person, 300,000 each occurrence
Property damage – $50,000 each occurrence, $50,000 each aggregate

Water well driller’s license fees: The well driller license is $30 (must work under the supervision of a water well contractor). The water well contractor’s license is $150. The license expires on December 31st of the following year.


Pump Installer’s License

You need a license to contract for the installation, maintenance, or repair of pumps and pumping equipment in and for wells in Delaware. If you already have a Delaware state plumber’s license, you do not need a license to do pump installation work.

Contact:

Department of Natural Resources and Environmental Control
Division of Water Resources
Water Supply Section
89 Kings Highway
Dover, DE 19901
(302) 739-4860
http://www.dnrec.state.de.us/

To qualify for a license you must be at least 18 years old and have at least two years related experience. The Board will review your application and references. Once you’re application is approved, you’ll be required to pass an exam at a time and date determined by the Board. The exam covers basic drilling methods, basic well construction and state laws and ordinances.

Pump installer contractors are required to carry and maintain the following contractor’s liability insurance coverage:
Bodily injury – $100,000 each person, 300,000 each occurrence
Property damage – $50,000 each occurrence, $50,000 each aggregate

Pump installer’s license fees: The pump installer’s license is $15 (must work under supervision of a pump installer contractor). The pump installer contractor’s license is $115. Licenses expire on December 31st of the following year.


Department of Transportation (DOT)

To bid on Delaware Department of Transportation projects you fill out a short form called Registry of Construction Contractors. To get the form, contact:

Department of Transportation
800 Bay Road
PO Box 778
Dover, DE 19903-0778
(302) 760-2080
Fax: (302) 739-2254
http://www.deldot.gov/index.shtml

On the form, you specify whether you want to bid on highway, bridge, and/or building construction.


Out-of-State Corporations

Corporations doing business in Delaware must register with the Delaware Secretary of State to do business in the state. For information, contact:

Division of Corporations
John G. Townsend Building
P.O. Box 898
Dover, DE 19903
(302) 739-3073
Fax: (302) 739-3812
http://sos.delaware.gov/default.shtml

Forms are available online at http://www.deldot.gov/static/publications_forms.shtml.

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