Complete Heating & Air Conditioning Services

CNM's Oil Delivery Service: Our price today for 125 gallon minimum delivery.

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Who We Are & What We Do

CNM was founded by two longtime friends, Cody Horan and Mark Burns. Together we have a combined field experience of more than 20 years. Our main objective is to provide our customers with the best possible service.

In order to best serve you, our customer, we service all makes and models of heating and air-conditioning systems. We value our work and invest in education to stay on top of new technologies within the HVAC trade.

The result of our work is that you save time, stress, and money by utilizing our services. Becoming a customer of ours is more than a transaction of money, we form a long lasting relationship of trust built upon integrity and dependability.

24/7 Availability

Emergency repair services 24 hours a day, seven days a week. 

Satisfaction Guaranteed

Our workmanship is 100% satisfaction guaranteed.

Professional Technicians

We have your safety, welfare and comfort in mind at all times. We are fully licensed and insured.

Our Services

Heating Service & Installation

We offer 24/7 Emergency service, Annual Maintenance, and New Installations of all types of Heating systems for Residential & Commercial Properties.

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AC Service & Installation

We offer Air Conditioning Repair, Annual Maintenance, and New Installations of all types of AC Systems including Duct work for Residential and Commercial Properties.

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Oil Delivery

We are proud to offer honest priced Home Heating Fuel Delivery to customers using oil. Cash, Check, Credit Card and Bank transfers accepted - No Contracts Needed to obtain Full Service! 

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Radiant Floor Heating

We specialize in the Designing and Installation of Radiant Floor Heating Systems for New and Existing Structures.

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Ductless & Ducted Mini Split Systems

We Specialize in the Installation of the Inverter type Mini Split Heat pump System. From single to multi unit, Ducted Or wall mount, the possibilities are endless. We don’t just install but repair mini split systems as well.

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Piping Services

We repair and install all kinds of different piping for many different applications. Heating piping , Wood boiler design, Gas piping installations and Oil tank replacement.

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What our customers say...

“You two did an AMAZING job. I feel so fortunate, and it was awesome to see the integrity with which you work. Thank you!!”


"Dear Mark & Cody, Allow me to thank you for the opportunity to work with you. I must say it was a total pleasure working with you both. You were quick, and neat about your work. And very efficient in the completion of the job. If you ever need a recommendation please do not hesitate to contact me. We will be working together again in the future. Thank you again. I look forward to working with you"

Carl M Reguin (C.M. Reguin General Contracting)

200 + satisfied customers!

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We service and repair all brands

Below are the brands of equipment we service & install but are not limited to

Service Areas

Servicing Connecticut and the surrounding areas with exceptional home comfort services:

Windham County

  • Ashford
  • Brooklyn
  • Canterbury
  • Chaplin
  • Dayville
  • East Killingly
  • East Woodstock
  • Eastford
  • Hampton
  • North Windham
  • Plainfield
  • Pomfret
  • Pomfret Center
  • Putnam
  • Scotland
  • South Windham
  • South Woodstock
  • Wauregan
  • Willimantic
  • Windham
  • Woodstock

Tolland County

  • Amston
  • Andover
  • Bolton
  • Columbia
  • Coventry
  • Ellington
  • Hebron
  • Mansfield Center
  • Somers
  • Stafford
  • Stafford Springs
  • Staffordville
  • Storrs Mansfield
  • Tolland
  • Vernon Rockville
  • Willington

Hartford County

  • East Glastonbury
  • East Windsor
  • Enfield
  • Glastonbury
  • Manchester
  • Marlborough
  • South Glastonbury
  • South Windsor
  • West Hartford
  • Windsor

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