Energy Unlimited of New England, Inc. was founded in 1983. Since 2013 Energy Unlimited has been an integral part of the Cotti-Johnson family of heating/cooling companies. Cotti-Johnson HVAC, Inc. is a family-owned and operated business providing affordable and customized heating and air conditioning equipment and services to customers throughout Eastern Massachusetts. In addition to our core heating and cooling business, Cotti-Johnson is now the proud owner of Energy Unlimited located at 57 Florence Street in Marlborough, Massachusetts. Energy Unlimited is a retail fireplace shop offering a large inventory of gas, wood and pellet stoves and accessories. Energy Unlimited is a full-service provider of sales, installation and maintenance for all of our fireplace products. Energy Unlimited provides its customers with free, in-home estimates for both fireplace products and HVAC systems. Trained, licensed and expert employees offer seamless, turn-key installations from sale to completion.


In addition to our Taunton and Marlborough locations, Cotti-Johnson kiosks and representatives can be found in designated COSTCO and LOWES stores. As the exclusive HVAC vendor at COSTCO’s Avon and Dedham locations as well as in ten LOWE’s stores throughout Southeast Massachusetts, customers can shop at their favorite discount store and take advantage of Cotti-Johnson’s in-store experts to obtain HVAC information, schedule in-house heating and cooling assessments or secure an appointment with a sales rep.


As a “One-Stop Shop” for all of your heating and cooling needs, the Cotti-Johnson Companies strive to develop long-term, trusting relationships with every customer we service. Our mission is not to just meet customer expectations but to consistently exceed them.


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Come and visit us!

We welcome your questions. Our staff is well trained to perform many services from installations and deliveries to consultation and estimates.



MONDAY thru WEDNESDAY   9:30 AM to  5 PM

THURSDAY                                    9:30 AM to  8 PM

FRIDAY & SATURDAY                 9:30 AM to  5 PM

 Energy Unlimited of New England INC

57 Florence Street in Marlborough, MA 01752

Located just off Rt 20

5 minutes from Rt 495 (Exit 24 - Marlborough)


TOLL FREE : 1-844-48-COTTI


TOLL FREE : 1-844-48-COTTI


TOLL FREE : 1-844-48-COTTI