AC Installation Services
HVAC, Electrical & Plumbing Services

Serving Taunton and Surrounding Areas Since 1948

AC Installation Services
Choose Boston’s Home Team!

Keeping Your Business Comfortable Is Our Priority

Contact us for emergency
24/7 Emergency Services

Repairs Rarely Come at a Convenient Time.

Over 75 Years In Business

We Have The Experience You Can Trust.

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Comfort Is Just A Call Away! Call Cotti Today.

Call to Schedule Service: 24/7 Emergency Service Available

Air Purifiers

If you’re looking for ways to improve your indoor air quality, the team at A#1 Air can help find the air purifier that’s right for you.

UV Lights

Did you know that UV light can help clean your air? Learn more about the way this technology works to result in a healthier home.


Insulation is a crucial component of any efficient and well-functioning home. Let us help with all of your insulation needs.


Air Duct Cleaning Specialists in Taunton

Home Duct Cleaning Specialists
According to the EPA, dust in your ventilation systems can make indoor air 70 to 100 times more polluted than outdoor air. Airborne contaminants like dust, mildew, chemical residues, and pollen get pulled into your ductwork whenever your heating and cooling system is on. If you and your family experience allergies, asthma, or respiratory illnesses, it might be time for air duct cleaning. The trained professionals at Cotti-Johnson can help.

Our Air Duct System Decontamination Process
We use both contact and non-contact cleaning methods, followed by an anti-bacterial coating. Cotti-Johnson’s team employs patented equipment that reaches deep into the air ducts, ensuring every part is cleaned. All extracted dirt, grime, and contaminants are collected for environmentally safe disposal.

Benefits of Professional Duct Cleaning

The air in homes and commercial buildings may be contaminated with a wide variety of pollutants. Poor indoor air quality can have health effects that range from mild to serious. In the short term, polluted air causes headaches, eye irritation, dizziness, throat irritation, and fatigue. In the long term, indoor air pollution is believed to contribute to health conditions, including respiratory conditions, heart disease, stroke, and lung cancer.

We can help you find the best solution for pollutants such as: