Moving to Connecticut: utilities and your first-month checklist
Which company serves your new address depends on where in Connecticut it is. Each link below goes to that company's own page for starting service. Start it two to three weeks ahead, from the day you get the keys.
Electric companies in Connecticut
Most of the state, including Hartford, Stamford, Norwalk, Danbury and eastern CTUnited Illuminating (UI)
New Haven, Bridgeport and surrounding south-central coastal towns
Natural gas in Connecticut
Many towns in central, western and eastern CT, including Waterbury, Meriden and Norwich areaConnecticut Natural Gas (CNG)
Hartford area and GreenwichSouthern Connecticut Gas (SCG)
New Haven, Bridgeport and coastal south-central CT
Water in Connecticut
Fairfield County (Bridgeport, Stamford, Greenwich) and other townsConnecticut Water
Dozens of towns in central and eastern CT
Choosing a supplier
Connecticut lets some customers choose who supplies their electricity. The wires and pipes stay with the utility. Compare on the state's own page before signing anything a door-to-door seller offers: official shopping page.
Help with the bills
If deposits or bills are a stretch, Connecticut runs energy assistance: official assistance page. Ask the utility about deposit waivers too; many waive the deposit with a good payment letter from your old company.
Problems with a utility
The Connecticut Public Utilities Regulatory Authority (PURA) regulates utilities in Connecticut and takes complaints.
New-resident deadlines in Connecticut
- Driver's license: within 90 days of moving. Official page
- Car registration and title: within 90 days of moving. Official page
- Inspection: Emissions test for vehicles older than four model years. Newer vehicles need a VIN check instead. Official page
- Connecticut driver license office
- Register to vote in Connecticut
From the state's own websites, checked October 2026. Deadlines can change; check the official page before you rely on one.
Your first month in a new state
- USPS: change your address: Start mail forwarding up to 30 days early. The real site is usps.com.
- Your new state's motor vehicle office: Driver's license, registration and title. Most states set a short deadline after you move, so check yours first.
- Register to vote: Routes you to the official registration for the new state.
- Medicaid, if you have it: Medicaid doesn't move with you. You apply again in the new state.
- Health insurance: A permanent move can open a special enrollment period.
- Social Security: Change your address once here; Medicare gets it from Social Security.
Utility companies and service areas checked October 2026. Service areas follow addresses, not county lines exactly: confirm with the company before you book.