HVAC

AC Installation in the Greater Boston Area

Endless Energy

Need reliable AC installation with no runaround? Our in-house team designs and installs your system the right way, backed by extended warranties. We serve the Greater Boston Area, including Boston, Worcester, and Cambridge. Homeowners trust us for consistent quality, Mass Save Certified technicians, and a 4.7 rating from 601 reviews. Beat the summer heat and book a quick, no-pressure estimate today.

Why Choose Us

  • In-house installation teams

    No subcontractors. Full accountability from design to service.

  • Manufacturer elite status

    Mitsubishi Diamond Elite and LG Platinum Dealer.

  • Extended warranty coverage

    Up to 12-year equipment and 10-year labor warranties.

  • Mass Save Certified

    Mass Save Home Performance Contractor since 2015.

  • Trusted by neighbors

    4.7 rating from 601 reviews and BBB A+ rating.

Reviews

What Our Customers Say

Customers mention

  • quality1
  • value1
  • professionalism1

Based on the reviews shown here.

  • Having one provider support both projects proved more cost effective, efficient, and less time consuming.
    Liam M.
  • The team was professional, courteous and always on time early in the morning.
    John C.

FAQs

Frequently asked questions

Still have questions?

How much does it cost to install central air with ductwork?

Central air with new ductwork does not have a one-size price. Total cost depends on home size and layout, duct design, number of supply and return runs, equipment type, and any line-set replacements to meet manufacturer specs. We start with a consultation and Manual J load calculation, then design ducts and provide a clear proposal. We handle permit requirements, rebates, and warranty registration. Financing is available, including 0% options with payments as low as $120/month. Serving Worcester, Newton, and nearby.

Updated: 2025-12-22

Need help in Weston, Westboro, Marlboro, Natick, Franklin, Ashland, Waltham, and other nearby towns in MA? Call (508) 501-9990 or book online.

How much does it cost to install a central air conditioner?

Central air installation pricing varies by home and system. A technician will confirm costs after an on-site assessment and Manual J sizing. Factors include home size and layout, ductwork condition or additions, refrigerant line-set replacement, equipment brand and efficiency, and rebate eligibility. We offer $500 off an AC-only system and 0% financing with payments as low as $120/month. We handle permits, rebate paperwork, and warranty registration to simplify the process in Boston and nearby.

Updated: 2025-12-22

Need help in Weston, MA? Call (508) 501-9990 or book online.

How much does central AC installation typically cost for homeowners?

Central AC installation cost depends on your home and chosen equipment. We provide a firm price after an on-site assessment. We size the system with a Manual J load calculation, check ductwork, and evaluate refrigerant lines. Pricing can change if ducts need redesign, linesets must be replaced, or electrical upgrades are required. We offer 0% financing with payments as low as $120/month and a $500 off AC-only promotion. Mass Save rebates and paperwork are handled for you in Newton and nearby.

Updated: 2025-12-22

Need help in Newton, MA? Call (508) 501-9990 or book online.

How much does AC installation typically cost for a new system?

AC installation cost varies by home and system. Endless Energy provides final pricing after an on-site assessment and load calculation. Key factors include central vs ductless or heat pump, any ductwork changes, refrigerant line-set replacement, and electrical upgrades. We handle permits, warranty registration, and rebate paperwork. Financing includes 0% options with payments as low as $120 per month, and $500 off an AC-only system. Mass Save incentives may lower your out-of-pocket cost in areas like Boston.

Updated: 2025-12-22

Need help in Weston, MA? Call (508) 501-9990 or book online.

How much does AC installation cost for a typical home?

AC installation cost depends on your home and system. We provide a firm price after an on-site assessment and system design. Factors include system type (central AC, ductless, or heat pump), home size and layout, ductwork or line-set changes, and any electrical work. Current promotions include $500 off an AC-only system and 0% financing with payments as low as $120/month. We also help with Mass Save rebates. Service available across Greater Boston, including Weston and Framingham.

Updated: 2025-12-22

Need help in Weston, MA? Call (508) 501-9990 or book online.

How much does AC installation cost for a new home?

AC installation cost for a new home varies by system type, capacity, ductwork needs, and design, and is finalized after an in‑home assessment. The biggest driver is the system you choose and the size confirmed by a Manual J load calculation, which prevents oversizing. Endless Energy starts with a no‑cost consultation and LiDAR‑enhanced Manual J, then provides transparent pricing. Our team regularly designs new‑build systems in the Worcester area with options including central AC, ductless mini‑splits, and heat pumps. 0% financing options are available.

Expect price differences based on:

  • System type (central, ductless, or heat pump)
  • Ductwork scope (new, modify, or none)
  • Number of zones and thermostats
  • Electrical requirements for the new equipment

Schedule a sizing visit so we can confirm the load, layout, and duct plan before you decide.

Updated: 2026-09-28

Need help in Worcester, MA? Call (508) 501-9990 or book online.

Learn more

Helpful resources

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We serve the Greater Boston Area, including Boston, Worcester, and Cambridge. See the full city list below to confirm service in your community.

Service area

Where We Work

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