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.

About Cotti-Johnson

Building Good Will for Over 75 Years

The “Cotti-Johnson Companies” opened it’s doors in 1944, and Incorporated in 1948. War Veterans Louis Cotti and Bill Laurence were sheet metal workers who set up shop at the Weymouth Shipyard just after the war, opening the doors as “Cotti-Laurence, Inc”.

Their primary focus was installing heating systems during the massive home construction of the South Shore spanning thru the 1950’s. In 1954, Louis Cotti purchased the remainder of the company from Bill Laurence, and ran the company by himself until the mid-1970’s, as the premier heating & cooling contractor on the South Shore.

Gary Johnson entered the company in the mid-1970’s, and introduced the Equipment and Commercial side of the business as his background was Equipment Sales. Louis and Gary expanded their Commercial Focus as the South Shore experienced growth of population bringing all sorts of Businesses needing heating & cooling services.

Gary then purchased Cotti-Johnson from Louis as Louis reached retirement age in 1984. For another quarter-century, Gary and his team designed, fabricated, and installed thousands of heating & cooling systems in Commercial & Residential settings all over Eastern Massachusetts.

20 years later, in 2004, Lead Estimator, John Boutin was made minority partner, and a few years later sold the business to Adam V. and Angelo S. Boccalini. Adam and Angelo made lifetime employee, Kevin Main, minority partner upon purchase. Kevin has over 30 years of experience here at Cotti-Johnson.

Adam and Angelo have introduced over 40 years of Business Management and “outside of the box” thinking to the rock-solid foundation of the Post-War Cotti-Johnson Companies.

300+

Homes Served Daily

75yrs+

Serving Taunton And Surrounding Areas

100%

Satisfaction Guaranteed

When you hire Cotti-Johnson

  • Superior Quality: Cotti-Johnson believes that a quality job begins with quality people, so we employ only highly trained, full-time tradesmen. Our entire team strives to provide the highest quality work along with professional, reliable services. We take pride in making customers exceptionally pleased on each and every job.
  • Planning: We recognize the importance of proper planning and staging on projects. This saves you money, produces a better end product and makes for a smooth running job site. We work directly with you to plan the job from the start. We are always thinking three steps ahead. Our professional estimating, project managing, and production staff is your guarantee that the project is completed on time, with uncompromising quality.
  • One Call Does It All: Our technicians will arrive at your home in a fully stocked truck ready to perform the job that same day. Our technicians provide upfront and transparent pricing prior to starting any job. We stand behind all work performed by our trained professionals in your home or business. If you’re not satisfied by the work completed, please let us know and we will make it right.

See What Our Customers Have To Say.

Ronald Goldberg
Ronald Goldberg
2024-05-17
Bryan did a very good job. Would be happy to have him do service again.
Stefan Jouret
Stefan Jouret
2024-05-16
These guys are great. A very professional operation. Master Electrician Jason Thompson is especially professional, efficient and courteous. Have had these guys do a variety of electrical projects over the years and am quite happy.
page widick
page widick
2024-05-15
Really fantastic service. Knowledgeable, thoughtful and fast worker!
Patricia Ganley
Patricia Ganley
2024-05-15
Technician on time; pleasant and professional; explained everything he did.
Edward Overby
Edward Overby
2024-05-13
Josh was great
Damon Hughes
Damon Hughes
2024-05-13
Dylan was awesome never had a bad experience
Nick Spiridakis
Nick Spiridakis
2024-05-11
Emergency repairs done with one telephone call. Dylan Lewis on time quick and efficient.
Susan Dunn (Sue D)
Susan Dunn (Sue D)
2024-05-09
Great experience, through explanation and answered my question completely.
Joe Gottron
Joe Gottron
2024-05-09
Ashlee from Cotti Johnson just installed the last portion of our new Generac generator. She was prompt, courteous, respectful & had the knowledge necessary to assist this old tech challenged person. I now understand the basics to utilize this generator. Thank you Ashlee & Cotti Johnson for your assistance throughout this entire process.

Why Choose Cotti-Johnson?

Discover why Cotti-Johnson is your premier solution for heating, cooling, electrical, and water heater services:

  • Service On Time: Punctuality is our promise. We understand the value of your time and ensure our services are delivered promptly, every time.
  • Warranties on Parts & Labor: Rest easy knowing your investment is protected. Our comprehensive warranties cover both parts and labor, providing you with peace of mind and confidence in our workmanship.
  • Customer Satisfaction Guaranteed: Your satisfaction is our top priority. We go above and beyond to exceed your expectations, ensuring you’re fully satisfied with the quality of our services.
  • Family Owned & Operated: As a family-owned and operated business, we treat our customers like members of our own family. You can trust us to prioritize your needs and deliver personalized service with a friendly touch.
  • Honest Pricing: Transparency is key in our business philosophy. We believe in fair and honest pricing, providing you with upfront quotes and avoiding hidden fees or surprises.
  • 70+ Years of Experience: With over 70 years of collective experience, our team of experts brings unparalleled knowledge and expertise to every job. Trust in our seasoned professionals to deliver reliable solutions tailored to your specific needs.