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Construction

Building Permits

Details pertaining to Connecticut building codes and permits can be obtain on the Connecticut Department of Consumer Protection's website at the following link.

Out-of-state contractor, special bonding requirements

Out-of-state contractors, regardless of the nature of the real property affected or the tax-exempt status of the property owner, must post a bond with the Department of Revenue Services. The nonresident contractor must be registered to conduct business in Connecticut.

Department of Revenue Services
1-800-382-9463 (CT only), 860-297-5962, bond hotline 860-541-7538 or drs@po.state.ct.us  Visit https://portal.ct.gov/drs

Is a license required to install solar thermal, electric and wind systems?

The Connecticut Department of Consumer Protection (DCP) is authorized to issue licenses for solar-thermal work, solar-electric work and wind-electric work.

Solar thermal work
is defined as "the installation, erection, repair, replacement, alteration, or maintenance of active, passive and hybrid solar systems that directly convert ambient energy into heat or convey, store or distribute such ambient energy."

Solar & wind electricity work is defined as "the installation, erection, repair, replacement, alteration, or maintenance of photovoltaic or wind generation equipment used to distribute or store ambient energy for heat, light, power or other purposes to a point immediately inside any structure or adjacent to an end use."

License Types Include: (Application Forms)
PV-1 Limited Solar Electric Contractor - work limited to solar-electric systems (and wind-energy systems). The requirements to qualify for this license examination are two years as a solar journeyperson or equivalent experience and training.
PV-2 Limited Solar Electric Journeyperson - perform solar-electric work (including wind-energy work) only while in the employ of a licensed electrical contractor. The requirements to qualify for this license examination are the completion of a registered apprenticeship program or one year equivalent experience and training.
ST-1 Solar Thermal Contractor - perform only work on solar thermal work systems. The requirements to qualify for this license examination are two years as a solar journeyperson or equivalent experience and training.
ST-2 Solar Thermal Limited Journeyperson - perform only work on solar thermal systems. The requirements for this exam are the completion of an apprenticeship program administered by the Connecticut Department of Labor, Apprenticeship Training Division. ST-2 work may be performed only under the employment of a licensed solar thermal contractor.

Additional occupational or trade licensing, such as home improvement, plumbing and piping, and electrical contractor  may be required.

Contact the agency for further information at (860) 713-6135 or e-mail dcp.occupationalprofessional@ct.gov.  Visit their web site at https://portal.ct.gov/DCP .  Governing statute: Conn. Gen. Stat. § 20-330 et seq. 

Additional Solar and Wind Licensing Information
Visit Database of State Incentives for Renewables & Efficiency (DSIRE) website at www.dsireusa.org

Useful Publications:
Homebuilder's Guide to Going Solar
Published by the U.S. Department of Energy (www.energy.gov), helps builders assess the benefits of installing solar equipment or making houses "solar ready" to both their business and commercial customers. In the guide, builders will find information on the basics of solar technology, selling points for builders and realtors, a ballpark-cost estimator, and highlights of success stories from builders across the country who have integrated solar into their building plans. It is strongly suggested to review this guide in its entirety.
The Connecticut Contractor for Home Improvement and New Home Construction (Department of Consumer Protection)
What you Need to Know About Landscape Lighting and Mandatory Licensing (Department of Consumer Protection)
Building Contractor's Guide, see page 23 - out-of-state contractor bonding (Department of Revenue Services)

Tax Considerations

The Connecticut Department of Revenue Services requires all contractors to register for the sales and use tax certificate. Services performed on commercial, income producing or non-owner occupied residences are subject to the Connecticut sales tax, however, services performed on owner occupied residential property are not subject to sales tax.  Note: Contractors are considered consumers purchasing materials used in home improvement services and cannot use a resale certificate

In addition, out of state contractors performing services in Connecticut are required to post a bond before performing work in Connecticut.

For more information, see the Building Contractors Guide to sales and use tax and Nonresident Contractor Bonds and Deposits.  Contact the agency: 1-800-382-9463 (Connecticut Only), (860) 297-5962, (860) 541-7538 (Bond Hotline) or drs@po.state.ct.us.  Visit https://portal.ct.gov/drs

LEED Green Building Rating Systemâ„¢

According to the U.S. Green Building Council, the Leadership in Energy and Environmental Design (LEED) Green Building Rating System™ encourages and accelerates global adoption of sustainable green building and development practices through the creation and implementation of universally understood and accepted tools and performance criteria.

LEED is a third-party certification program and the nationally accepted benchmark for the design, construction and operation of high performance green buildings. LEED gives building owners and operators the tools they need to have an immediate and measurable impact on their buildings’ performance. LEED promotes a whole-building approach to sustainability by recognizing performance in five key areas of human and environmental health: sustainable site development, water savings, energy efficiency, materials selection and indoor environmental quality.

Contact: 800-795-1747, (202) 742-3792 or  info@usgbc.org  Visit: www.usgbc.org

Also, contact Connecticut Green Building Council via e-mail or visit www.ctgbc.org

Does a business who manufactures, sells and installs modular buildings require licensing?

According to the Connecticut Department of Consumer Protection a contractor license is not required for commercial buildings. However, a new home construction contractor license is required for residential buildings.  Additionally, trade licensing applies (i.e. plumber, electrician and etc..)   In addition, modular home parks and sellers require a modular manufactured home license.

Contact the agency: (860) 713-6145 or dcp.occupationalprofessional@ct.gov

In addition, the local building official must approve the plans and provide a permit.

Is a license required for welding?

Welding services may require various licenses through the Connecticut Department of Consumer Protection, depending on the type of work performed, 
- Work performed on pipes and other associated fittings and materials may require licensing for heating, cooling and sheet metal and plumbing.
-  Welding performed on the structural integrity of buildings that exceeds the threshold limits provided in section 29-276b requires a major contractor license.
-  A home improvement license is required if performed on owner occupied residential property.

Contact the agency: (860) 713-6135 or license.services@ct.gov  Visit: https://portal.ct.gov/dcp 

Tax considerations:
The Connecticut Department of Revenue Services requires all contractors to register for the sales and use tax certificate.

Services performed on commercial, income producing or non-owner occupied residences are subject to the Connecticut sales tax, however, services performed on owner occupied residential property are not subject to sales tax.  Note: Contractors are considered consumers purchasing materials used in home improvement services and cannot use a resale certificate

In addition, out of state contractors performing services in Connecticut are required to post a bond before performing work in Connecticut.

For more information, see the Building Contractors Guide to sales and use tax and Nonresident Contractor Bonds and Deposits.  Contact the agency: 1-800-382-9463 (Connecticut Only), (860) 297-5962, (860) 541-7538 (Bond Hotline) or drs@po.state.ct.us.  Visit https://portal.ct.gov/drs
 

Home Construction and Related Services

Note:  All home construction contractors should consult with the town to obtain appropriate approvals and permits prior to commencing any construction project.

Licensing Agencies

Licensing

Home construction  requires either a new home construction or home improvement contractor license and possibly a home improvement salesperson license is required with the Connecticut Department of Consumer Protection.  Contractors performing both new home construction and home improvement must hold licenses.

Definitions:

  • Home improvement is any permanent change to residential property (single or multifamily dwellings of six units or less),  condominiums or common interest communities and you charge more than $1,000 for all your home improvement contracts with all your customers during any 12 consecutive months.
    • Exemptions:
      • if you work only as a subcontractor for a registered home improvement contractor
      • if you only build new houses (requires a new home construction contractor license)
      • if you do only commercial work 
      • if you hold a trade license issued by the state, and the work is within the scope of that license.
    • Additional services that fall under the home improvement license:
      • Painting
      • Power washing (if using chemicals)
      • Destumping
      • Planting trees, shrubs, flowers
      • Lawn maintenance - no license is required if services only include maintenance such as mowing lawns, raking leaves, basic yard
            clean-up.
      • Outdoor lighting - low voltage - 12 volt and 120 volt lighting with transformer requires an electrical contractor license.  Licensing is not required if lighting is pre-wired/pre-fabricated factory enclosed transformers with any terminations or spliced that can be plugged into an outdoor electrical outlet previously installed by a licensed electrician and individual solar powered lamps.

        Note:  Any business that uses chemicals in cleaning, painting or landscaping services requires licensing through the Connecticut Department of Energy & Environmental Protection.  Contact the agency: (860) 424-3003 or dep.webmaster@ct.gov.  Agency website:  www.ct.gov/deep  

  • Home improvement salesperson is any individual who (A) negotiates or offers to negotiate a home improvement contract with an owner or (B) solicits or otherwise endeavors to procure by any means whatever, directly or indirectly, a home improvement contract from an owner on behalf of a contractor.
  • New home construction is any work performed to construct a new home or any portion of a new home - single family dwelling, two family unit, condominium unit. A new home construction contractor license is required.
    • Exemptions:
      • Homeowners applying for their own home construction
      • Realtors engaging in work under Chapter 392 of the Connecticut General Statutes
      • Mobile home dealers and/or licenses covered under Chapter 412 of the Connecticut General Statutes 
      • Persons holding a professional or occupational license, registration or certificate, provided said person engages in said work for which said person is licensed, registered and certified
      • New home construction contractors who engage in one or more contracts related to the same new home with an aggregate value of less than $3,500
      • Salespeople
    • If the consumer is acting as his or her own general contractor for the purpose of building or improving their own home, each contractor not holding a specific trade license for the work they perform must be registered as a new home contractor, when they enter into a contract with the consumer.  This means all framers, foundation workers, sheetrockers, carpet installers, etc. must be registered as a new home contractor.

Publications:

Additional related home construction licenses:

Tax considerations

The Connecticut Department of Revenue Services requires all contractors to register for the sales and use tax certificate.

Services performed on commercial, income producing or non-owner occupied residences are subject to the Connecticut sales tax, however, services performed on owner occupied residential property are not subject to sales tax.  Note: Contractors are considered consumers purchasing materials used in home improvement services and cannot use a resale certificate

In addition, out of state contractors performing services in Connecticut are required to post a bond before performing work in Connecticut.

For more information, see the Building Contractors Guide to sales and use tax and Nonresident Contractor Bonds and Deposits.  Contact the agency: 1-800-382-9463 (Connecticut Only), (860) 297-5962, (860) 541-7538 (Bond Hotline) or drs@po.state.ct.us.  Visit https://portal.ct.gov/drs

Do construction flaggers / flag persons require licensing?

According to the Connecticut Department of Transportation no occupational or trade license is required for a flag person ("flagger").  However, the agency requires training which is provided by American Traffic Safety Services Association or National Safety Council. The guidelines and regulations vary depending on whether the work is being carried out on a state roadway or a municipal roadway.  The type of contract determines what type of permit is issued.  Contact the agencies:

Connecticut Department of Transportation:  (860) 594-2685 or visit www.ct.gov/dot
American Traffic Safety Services Association:  (540) 368-1701,  800-272-8772 (toll free), 877-642-4637 (training department) or visit www.atssa.com
National Safety Council:  (630) 285-1121, 800-621-7619 (toll free) or visit www.nsc.org

Does mold remediation require a license?

Connecticut does not require individuals or companies who remediate mold to hold a license.  However, there are organization, such as the National Association of Mold Professionals, that have developed certification programs for professionals in the trade.  

The Connecticut Department of Public Health offers information specific to mold on their website.  For more details review the information in the following link, call the agency at 860-509-7742 or contact your local health official