Connecticut has 169 towns, no working county governments, and a patchwork of electric, gas and water providers that rarely follow municipal borders. A household in Bridgeport, one in Norwich and one in Torrington can each deal with a different set of companies for power, heat and water. This page explains how the system is organised, so you can reach the right office on the first call instead of the third.

Who Regulates Electric, Gas and Water Service in Connecticut

The Public Utilities Regulatory Authority, known as PURA, oversees the state's investor-owned electric, gas and water companies. It operates within the Department of Energy and Environmental Protection (DEEP). PURA decides rate requests through formal hearings, sets service standards, and takes complaints that a customer cannot settle with the company directly.

Two other state bodies are worth knowing. The Office of Consumer Counsel represents ratepayers in rate cases. The Department of Public Health's Drinking Water Section oversees water safety, which is a separate question from what a water company charges.

Not every provider answers to PURA. Municipal and district systems, such as Norwich Public Utilities, Bristol Water Department and Danbury Public Utilities Department, are run by local bodies and set their rates locally. Interstate pipelines are regulated federally by the Federal Energy Regulatory Commission. That group includes the Tennessee Gas Pipeline and Algonquin Gas Transmission offices in our listings for Wallingford, Bloomfield, Brookfield and Cheshire. These companies move gas across state lines and do not sell it to households, so a billing question sent there is almost always in the wrong place.

Why Your Provider Depends on Where You Live in Connecticut

Connecticut abolished county government in 1960. The seven counties below are geographic groupings only, and services come from towns, districts and companies instead.

Electric delivery is split mainly between Eversource, which covers most of the state, and United Illuminating, which serves the Bridgeport and New Haven corridor. A few communities run their own municipal electric systems, and Wallingford and Norwich are two examples. Natural gas comes from Connecticut Natural Gas, Southern Connecticut Gas or Yankee Gas, depending on the town, and only where mains have been built. Water is the most fragmented of the three. Private companies, regional authorities, municipal departments and special taxing districts all operate side by side.

Fairfield County: dense service areas and many water systems

Along the coast, population density supports large systems. Aquarion Water Company lists its Bridgeport office on Lindley Street, and the First District Water Department works from New Canaan Avenue in Norwalk. Danbury Public Utilities Department on Newtown Road covers the city's own utility services. Energy retailers and fuel suppliers cluster here too, including Viridian Energy in Stamford and Burns Gas in Shelton. Fairfield County has the most listings in the state for that reason.

Hartford County: municipal departments and a regional gas utility

Greater Hartford mixes large and small operators. Connecticut Natural Gas Corporation is listed in East Hartford, Connecticut Water Co. in Broad Brook, and Bristol Water Department on Riverside Avenue in Bristol. Smaller towns keep their own offices, including Berlin Water Control Commission on Kensington Road and Utilities & Services Avon on West Main Street. Power and electrical businesses such as Russell Electric in Enfield and NBG Power in Windsor round out the Hartford County listings. Municipal offices usually have a counter where you can pay in person, while the large companies lean on phone and online service.

New Haven County: shoreline towns and industrial valleys

New Haven County stretches from Milford and Madison on the shoreline to Waterbury and Wallingford inland. Listings here lean toward gas, electrical and energy-equipment businesses. Examples are Arrow Gas in Waterbury, L C Electric in Madison, Air & Gas Technologies Inc in Milford and Libby Power Systems in Bethany. The Regional Water Authority supplies much of the New Haven area, so a water question in this county often belongs with that authority and not a town office.

Eastern and northwestern Connecticut: fewer offices, longer drives

Outside the commuter belt, offices thin out. The Norwich Public Utilities Business Development Center on South Golden Street is the main entry point for New London County, and Norwich is one of the few Connecticut cities where one municipal utility handles several services. In Litchfield County, Superior Plus Energy Services in Torrington and Asselin Electric in Winchester serve towns where many homes heat with propane or oil rather than piped gas. Many rural homes also use private wells, which have no utility behind them at all.

What the Connecticut Utilities Listings Actually Include

The word "utilities" covers more than the companies that send you a monthly bill. The listings fall into a few groups:

Check which group an office belongs to before you visit. A contractor cannot open an account for you, and a provider's customer service desk will not rewire your panel.

Practical Steps Before You Contact a Connecticut Utility Office

Start with your latest bill. It names the company that delivers your service, shows your account number, and usually lists a separate supplier line if you buy electricity from a third party. Electric customers can choose a competitive supplier, but the delivery company still restores power after storms.

When opening service, have photo ID, the service address and your move-in date ready. Some companies ask for a deposit, depending on credit history. If money is tight, call 211 early. The state's energy assistance program and the nonprofit fuel banks work best before a shutoff notice arrives, not after.

Hiring help? Electrical, plumbing and piping work in Connecticut requires a license from the Department of Consumer Protection, and you can look up a license online before you sign anything. Before any digging, call 811 so underground lines are marked. Those lines may belong to a utility you have never dealt with.

If a problem remains after you have contacted the company in writing, escalate it. For regulated companies, that means PURA. For city-run systems, it means the municipal board or commission. Keep dates, names and reference numbers from every call.

Municipal utility departments throughout Connecticut provide electricity, water, sewer, and related services to millions of residents and businesses. Utility governance in Connecticut is shaped by the state's public utility commission, which regulates investor-owned utilities, while municipally owned systems operate under local authority.

Utilities locations are available in 52 cities across Connecticut. They are spread across 7 counties.

Cities with the highest concentration of utility offices include Bridgeport, Enfield, Milford, reflecting their larger populations and service area demands.

Connecticut residents should contact their local utility provider directly for account setup, billing questions, and outage reporting. State-level utility assistance programs may also be available through the state's health and human services agency.

Utilities by Counties

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Connecticut residents who need help paying utility bills may qualify for the Low Income Home Energy Assistance Program (LIHEAP), administered through the state's community services offices. Contact your local utility provider to inquire about budget billing, shut-off protection, and additional assistance programs available in your area.

Browse Utilities by county across Connecticut to find your local utility department's contact information and service office locations.

Finding Utility Help Outside Connecticut's Big Cities

Listing counts reflect businesses and offices with a street address, not how well an area is served. Windham County has only three listings and Middlesex County has one, yet both have full electric, water and heating service. The difference is that the provider is often based in another county, or is a small-town department that works from a town hall counter rather than a stand-alone office.

A rural resident should start with the bill, then the town hall. Town clerks, public works departments and local health departments can tell you which water company or district serves your street, whether sewer is available, and who to ask about private wells. Heating oil and propane prices are set by each dealer, so get quotes from several before you commit to a delivery plan or a seasonal contract.

Storm response matters here too. Connecticut's overhead lines run through heavily wooded areas, and tree-related outages are common after wind and snow. Report an outage to your delivery company, not your supplier. Also ask your utility whether it keeps a list of customers who rely on medical equipment, and sign up before the weather turns.

Utilities in Connecticut: Frequently Asked Questions

Start with the company's customer service line and ask for a reference number. If it will not resolve the dispute, you can file a complaint with PURA, which reviews disputes involving investor-owned electric, gas and water companies. Municipal utilities such as Norwich Public Utilities or Bristol Water Department work differently. Their disputes go through the local commission or board, so ask for the appeal process in writing. Keep copies of bills, emails and the dates of your calls. Check the dispute rules before withholding payment, because an unpaid balance can still lead to a shutoff notice.

Yes. Connecticut opened retail electricity supply to competition, so you can buy supply from a third-party supplier, such as Viridian Energy, which appears in our Stamford listing, or stay on your utility's standard service. Either way, Eversource or United Illuminating still delivers the power, maintains the lines and handles outages. Before switching, read the contract for the rate type (fixed or variable), the term and any early cancellation fee. Then compare the price per kilowatt-hour with the standard service rate printed on your bill, since standard rates are reset periodically and a good deal can stop being one.

The Connecticut Energy Assistance Program, run through the Department of Social Services and local community action agencies, helps eligible households with heating costs. Eligibility depends on household size and income, and applications generally open in the fall. Call 211 to find your local intake office. The nonprofit Operation Fuel offers emergency help for households that fall outside standard programs. State rules also limit winter shutoffs for certain hardship customers of electric and gas heating, generally from November through April, but you usually have to apply with the utility. Ask before a shutoff date, not after.

It depends on your street, not your county. Bridgeport customers often deal with Aquarion Water Company, the First District Water Department serves parts of Norwalk, and Bristol and Berlin run municipal departments. Greater New Haven is largely served by the Regional Water Authority. Your water bill names the provider, and your town's public works office can confirm it if you have no bill yet. If your home uses a private well, no utility is responsible for it. Your local health department can explain testing, and public systems publish annual water quality reports.

The Department of Consumer Protection licenses electrical contractors and the plumbing and piping trades, which cover most gas fitting. Ask the contractor for a license number and look it up on the state's online license lookup before work starts. Most electrical work also needs a permit from your town's building department, with an inspection before walls are closed. Businesses such as Russell Electric in Enfield, Asselin Electric in Winchester and L C Electric in Madison appear in our listings, but confirm credentials directly. Get a written estimate and keep the permit paperwork for future sales.

Call 811 or submit a request online before any excavation. Connecticut law requires notice to the one-call center, and line owners mark buried gas, electric, water and telecom lines at no charge. Wait for the markings before you dig. Larger transmission pipelines, such as the Algonquin and Tennessee Gas lines with offices in Brookfield, Cheshire and Bloomfield, run through easements across private land. Building structures or planting trees on an easement is usually restricted, so check your deed and contact the pipeline operator if you think one crosses your lot.