Family owned & operated since 1986
Family owned & operated since 1986
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!
"They are aggressive, is not knowledge about what he is doing, he is very dishonest."
Michael J on January 2024
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!
"They are aggressive, is not knowledge about what he is doing, he is very dishonest."
Michael J on January 2024
Family owned business with over 12 years of experience handling all your Heating & AC needs for residential and commercial. Master certified HVAC.
Family owned business with over 12 years of experience handling all your Heating & AC needs for residential and commercial. Master certified HVAC.
Cotti Johnson has been a trusted name for over 75 years, providing expert HVAC, plumbing, and electrical services to homeowners in the Greater Boston area. We specialize in HVAC installation, repair, and maintenance, ensuring your home stays comfortable year-round. Our plumbing services range from leak repairs to new installations, while our licensed electricians handle all electrical needs, including panel upgrades and lighting installations. Trust Cotti Johnson for professional, reliable, and comprehensive home services.
"On time and knew his stuff. Thank god for him. "
Cathy W on December 2025
Cotti Johnson has been a trusted name for over 75 years, providing expert HVAC, plumbing, and electrical services to homeowners in the Greater Boston area. We specialize in HVAC installation, repair, and maintenance, ensuring your home stays comfortable year-round. Our plumbing services range from leak repairs to new installations, while our licensed electricians handle all electrical needs, including panel upgrades and lighting installations. Trust Cotti Johnson for professional, reliable, and comprehensive home services.
"On time and knew his stuff. Thank god for him. "
Cathy W on December 2025
L&G Heating and Air Conditioning provides provides a full range of heating and air conditioning services including installation and service of the latest technology in duct less and ducted mini split heat pump systems, high efficient warm air furnaces, boilers and central AC systems. we provide annual maintenance services which includes filter changes, coil cleaning, inspecting heat exchangers and flu piping, We are family owned and have been in business for seven years and working in the trade for over forty years.
"We absolutely will use them again! They arrived when they said they would and did great work on our historic home. Historic homes can bring challenges to companies working on them. All difficulties were handled quickly and perfectly. We found their rates to be the best around. I look forward to doing more projects with L&G Heating and Air Conditioning."
Lisa A on May 2024
L&G Heating and Air Conditioning provides provides a full range of heating and air conditioning services including installation and service of the latest technology in duct less and ducted mini split heat pump systems, high efficient warm air furnaces, boilers and central AC systems. we provide annual maintenance services which includes filter changes, coil cleaning, inspecting heat exchangers and flu piping, We are family owned and have been in business for seven years and working in the trade for over forty years.
"We absolutely will use them again! They arrived when they said they would and did great work on our historic home. Historic homes can bring challenges to companies working on them. All difficulties were handled quickly and perfectly. We found their rates to be the best around. I look forward to doing more projects with L&G Heating and Air Conditioning."
Lisa A on May 2024
A1 HVAC PLUS has been installing and servicing HVAC systems in the area for over 40+ years Our services include installation, maintenance, and repair of heating, air conditioning, ventilation and refrigeration systems. We are fully licensed by the State of Massachusetts, assuring you that your system will be completed to exact industry and code standards. We provide a fast, reliable and quality service by clean, experienced, trained and licensed professionals. We take pride in every job making sure our customers receive the best service in the industry! We offer 24-hour emergency services because problems can happen at any time. That means we answer our phones around the clock and always respond with rapid, professional service. Call today for a free estimate!
"Although 50 miles from my house A1 was there within two days which was impressive with the "hot" season in full swing. Extremely friendly and knowledgable.. Gave advice for the future of my system (mini-splits) and what I could expect."
Wayne C on June 2024
A1 HVAC PLUS has been installing and servicing HVAC systems in the area for over 40+ years Our services include installation, maintenance, and repair of heating, air conditioning, ventilation and refrigeration systems. We are fully licensed by the State of Massachusetts, assuring you that your system will be completed to exact industry and code standards. We provide a fast, reliable and quality service by clean, experienced, trained and licensed professionals. We take pride in every job making sure our customers receive the best service in the industry! We offer 24-hour emergency services because problems can happen at any time. That means we answer our phones around the clock and always respond with rapid, professional service. Call today for a free estimate!
"Although 50 miles from my house A1 was there within two days which was impressive with the "hot" season in full swing. Extremely friendly and knowledgable.. Gave advice for the future of my system (mini-splits) and what I could expect."
Wayne C on June 2024
New construction/ Remodels Kitchen and Bathrooms Pools and Spas Heating and cooling systems Whole House and Portable Generators Service upgrades and Panels changes Solar and Battery Systems EV Car Chargers
"Jerry was very communicative and explained everything very clearly. He arrived on time, completed the work quickly, and was affordable. Overall we are very happy with his service!"
Abbygail Z on January 2025
New construction/ Remodels Kitchen and Bathrooms Pools and Spas Heating and cooling systems Whole House and Portable Generators Service upgrades and Panels changes Solar and Battery Systems EV Car Chargers
"Jerry was very communicative and explained everything very clearly. He arrived on time, completed the work quickly, and was affordable. Overall we are very happy with his service!"
Abbygail Z on January 2025
Heating, ventilation, and air conditioning maintenance, installation, and repairs. Since 1984
Heating, ventilation, and air conditioning maintenance, installation, and repairs. Since 1984
Owner Operator. 3 employees. Does not use subs. 30 years experience. Cost determine either hourly or by the job. No travel charges.
Owner Operator. 3 employees. Does not use subs. 30 years experience. Cost determine either hourly or by the job. No travel charges.
We're America’s #1 local home heating oil and total home comfort services provider (heating, cooling, plumbing, & chimney). With over 100 years experience, we know how to keep you comfortable, safe and help you save on energy costs. Our local 24/7 customer service and support means automatic heating oil deliveries and our service response is always fast. We never run out of heating oil plus our pricing and payment plans are designed to help you manage your costs all year round. Experience the Petro difference today!
"Our heater stopped functioning on Nov 27, 2023 and we called Petro who had done the maintenance on it before and replaced a motor two years ago. They were responsive and a technician came two days later. He worked for 3 hours without explaining what the problem was. Then said he needed to replace the motor. He fixed the problem and left without much explanation. Two days later a bill of $2500 came via email. No explanation, no break-down. I called 4 times over the last 20 days, spoke to 4 different reps and was promised that a supervisor will contact me with the bill details. Nothing happened. Irresponsible customer service and unprofessional behavior. They show all the symptoms of big, bureaucratic, and indifferent service company. I would not recommend Petro if you have options of more personalized services."
Nasser R on December 2023
We're America’s #1 local home heating oil and total home comfort services provider (heating, cooling, plumbing, & chimney). With over 100 years experience, we know how to keep you comfortable, safe and help you save on energy costs. Our local 24/7 customer service and support means automatic heating oil deliveries and our service response is always fast. We never run out of heating oil plus our pricing and payment plans are designed to help you manage your costs all year round. Experience the Petro difference today!
"Our heater stopped functioning on Nov 27, 2023 and we called Petro who had done the maintenance on it before and replaced a motor two years ago. They were responsive and a technician came two days later. He worked for 3 hours without explaining what the problem was. Then said he needed to replace the motor. He fixed the problem and left without much explanation. Two days later a bill of $2500 came via email. No explanation, no break-down. I called 4 times over the last 20 days, spoke to 4 different reps and was promised that a supervisor will contact me with the bill details. Nothing happened. Irresponsible customer service and unprofessional behavior. They show all the symptoms of big, bureaucratic, and indifferent service company. I would not recommend Petro if you have options of more personalized services."
Nasser R on December 2023
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