Hartford, Connecticut
Home Energy Experts Serving Hartford, CT
CellSun helps Hartford homeowners lower energy costs, modernize aging systems, and stay comfortable year round with premium solar, KEEN heat pumps, roofing, Generac generators, and battery storage.
Local Home Electrification
Hartford is Connecticut's capital and its densest residential market. Much of the city's housing predates 1940, including the Victorians of the West End and Asylum Hill and the two- and three-family homes that fill Frog Hollow, Barry Square, and the South End.
Older Hartford housing usually means an aging boiler or furnace, knob-and-tube remnants, and an electrical service that has to be evaluated before a heat pump or battery goes in. We check service capacity first, because a panel upgrade is frequently the real first step in this city.
Multi-family properties change the economics. Metering, tenant load, and roof access all shape whether solar, a heat pump, or both make sense, and we walk owners through that before quoting anything.
Hartford permitting goes through the city's Development Services office, and properties in a locally designated historic district may need design review before exterior work. We handle both tracks and the Eversource interconnection filing.
One accountable local partner for your whole home, from the roof down to the last circuit.
Premium home solar systems engineered for New England roofs and weather. We size every array around your actual usage, roof orientation, and shading so you generate the most power for the lowest lifetime cost.
Cold-climate heat pump systems rated to heat efficiently well below zero. CellSun does the load calculation, system design, permitting, electrical work, and Energize CT rebate paperwork. The installation is performed by our licensed HVAC installation partner.
Solar-ready roof replacements and repairs done right the first time, so your roof and any future solar system work together as one weather-tight, long-lasting envelope.
Whole-home Generac standby generators that keep your lights, heat, and well pump running during outages, sized and installed to protect what matters most when the grid goes down.
Home battery storage that stores your own energy for backup power and resilience, so you rely less on the grid and keep essential circuits powered through interruptions.
Usually, but the electrical service is the deciding factor. In pre-1940 Hartford homes we evaluate panel capacity and existing circuits first, and a service upgrade is often part of the scope before a cold-climate heat pump is installed.
Yes. On multi-family properties in Frog Hollow, Barry Square, and the South End we look at how each unit is metered and who pays which bill, then design solar or heat pump scope around that ownership picture.
CellSun contracts for solar, roofing, generators and battery storage, and does its own electrical. On heat pumps CellSun designs and permits, and our licensed HVAC installation partner installs.
Yes. The systems we specify run efficiently well below zero, colder than Hartford typically sees.
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