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621 EnergySolar installer in Concord, MA

621 Energy is a solar installer at 152 Commonwealth Ave #21, Concord, MA 01742. Open Monday to Friday.

Concord, MA0 paid placements in any rankingHow we rank

Call (978) 263-5215Website ↗

Key facts

Key facts about 621 Energy
Address152 Commonwealth Ave #21, Concord, MA 01742Get directions
Phone(978) 263-5215
Website621energy.com
HoursMonday to Friday: 8 AM – 5 PM

Trades

Each trade shows the evidence we matched it on.

  • Solarmain tradeGoogle main category

Service area

Serves Concord and 11 towns within 40 miles: West Concord, Acton, Maynard, Lincoln, Sudbury, Stow, Bedford, Wayland, Weston, Westford and Lexington.

Based in Concord, MAView on map

Opening hours

Opening hours for 621 Energy
DayHours
Monday8 AM – 5 PM
Tuesday8 AM – 5 PM
Wednesday8 AM – 5 PM
Thursday8 AM – 5 PM
Friday8 AM – 5 PM
SaturdayClosed
SundayClosed
  • Open evenings — no
  • Open Saturdays — no
  • Open Sundays — no

Typical solar installation prices

Typical solar installation prices
JobLowTypicalHigh
Solar panel installationPer system: about 12 kW at about $2.60 per watt, before incentives. US national range × 1.05 New England factor (2025 Cost vs. Value Report)$28,990$32,790$35,670

Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.

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Questions about 621 Energy

What are 621 Energy’s hours?

621 Energy is open Monday to Friday. Its listed hours are Monday to Friday, 8 AM – 5 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does 621 Energy serve?

Serves Concord and 11 towns within 40 miles: West Concord, Acton, Maynard, Lincoln, Sudbury, Stow, Bedford, Wayland, Weston, Westford and Lexington. The list is based on the business's location and the usual service radius for solar installation. Confirm your address is covered when you call.

How do I contact 621 Energy?

Call 621 Energy on (978) 263-5215. The business is at 152 Commonwealth Ave #21, Concord, MA 01742. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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