
Nicholson Heating, Cooling, Plumbing & Electrical
Nicholson Heating, Cooling, Plumbing & Electrical
Nicholson Heating, Cooling, Plumbing & Electrical
Nicholson Heating, Cooling, Plumbing & Electrical


Nicholson Heating, Cooling, Plumbing & Electrical
Nicholson Heating, Cooling, Plumbing & Electrical

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
Youssef Heating & Air Conditioning is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. Youssef HVAC is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!
"Nate is professional and a hard worker. The cost of the mini split system that he installed was reasonably priced and works great."
Dan F on May 2022
Youssef Heating & Air Conditioning is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. Youssef HVAC is a leader in providing our customers with the highest quality products and craftsmanship in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!
"Nate is professional and a hard worker. The cost of the mini split system that he installed was reasonably priced and works great."
Dan F on May 2022

True Temp Heating and Cooling is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 18 years of experience serving Dartmouth, MA and surrounding areas. There is no job too big, or too small for our team. Call today and let us put our experience to work for you!
True Temp Heating and Cooling is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 18 years of experience serving Dartmouth, MA and surrounding areas. There is no job too big, or too small for our team. Call today and let us put our experience to work for you!

St Joseph Heating And Cooling is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.
"Very professional and very good work, super recommended!!"
Larissa L on April 2023
St Joseph Heating And Cooling is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.
"Very professional and very good work, super recommended!!"
Larissa L on April 2023

When it comes to heating and cooling issues, we're who your neighbors call. Call us today to schedule your service!
When it comes to heating and cooling issues, we're who your neighbors call. Call us today to schedule your service!

At G&C Plumbing & Heating, our mission is to set the standard for customer service in the plumbing and HVAC industry. We take pride in delivering reliable, high-quality solutions with the professionalism and care every customer deserves. From water heater installations to heating and cooling repairs, our skilled technicians provide honest communication, upfront pricing, and exceptional workmanship—no surprises, ever. As a family-owned business serving our community for 20 years, we believe in doing things the right way—with honesty, integrity, and respect. Our technicians receive ongoing training to ensure expert service from start to finish, whether you’re speaking with our office staff, scheduling a visit, or working with a service technician in your home. We’re proud to keep our community comfortable year-round and are grateful for the continued trust and referrals from our loyal customers.
"Great service! G&C worked around my availability. Tech was super knowledgeable and professional. Fixed the problem and gave great maintenance advice."
Garland K on February 2026
At G&C Plumbing & Heating, our mission is to set the standard for customer service in the plumbing and HVAC industry. We take pride in delivering reliable, high-quality solutions with the professionalism and care every customer deserves. From water heater installations to heating and cooling repairs, our skilled technicians provide honest communication, upfront pricing, and exceptional workmanship—no surprises, ever. As a family-owned business serving our community for 20 years, we believe in doing things the right way—with honesty, integrity, and respect. Our technicians receive ongoing training to ensure expert service from start to finish, whether you’re speaking with our office staff, scheduling a visit, or working with a service technician in your home. We’re proud to keep our community comfortable year-round and are grateful for the continued trust and referrals from our loyal customers.
"Great service! G&C worked around my availability. Tech was super knowledgeable and professional. Fixed the problem and gave great maintenance advice."
Garland K on February 2026

Welcome! At JN Service HVAC & Plumbing, we’re proud to deliver licensed, insured, and trusted HVAC and plumbing solutions to homes and businesses across Massachusetts. With a solid reputation built on Excellence, Commitment, and Responsibility, we help you prepare your home or commercial space for the season ahead — before winter problems strike. Our priority is your comfort at home. Why Choose Us? - 5-star Rated Company: We are a 5-star rated company with more than 1200 satisfied clients. - Customer Success: We focus on long-term relationships. - Specialist: Expert knowledge and proven skills. - Licensed and Insured: Our services are fully insured, providing you with peace of mind. - Quality in Everything we do: Best service with the best products. - Double-year warranty on labor. - Emergency Service: We're ON 24/7 to ensure your well-being.
"Overpriced and incompetent. JN Service has worked on my house 5+ times in the last month, totaling nearly $10k, and every visit created a new problem that cost more to fix. Most recently, they came for a small leak and left after cutting/breaking multiple pipes, leaving my entire home with no running water?despite assuring me I?d have at least cold water. They then returned only with an expensive full-home repipe quote, refusing to even quote a local repair. I?ve since had three other plumbing companies inspect everything; all agreed that JN?s technical decisions were poor, their repipe quote was severely overpriced, and their quote structure (initially with almost no detail) was concerning at best, predatory at worst. I will never use JN Service again and strongly recommend others avoid them."
Joseph N on December 2025
Welcome! At JN Service HVAC & Plumbing, we’re proud to deliver licensed, insured, and trusted HVAC and plumbing solutions to homes and businesses across Massachusetts. With a solid reputation built on Excellence, Commitment, and Responsibility, we help you prepare your home or commercial space for the season ahead — before winter problems strike. Our priority is your comfort at home. Why Choose Us? - 5-star Rated Company: We are a 5-star rated company with more than 1200 satisfied clients. - Customer Success: We focus on long-term relationships. - Specialist: Expert knowledge and proven skills. - Licensed and Insured: Our services are fully insured, providing you with peace of mind. - Quality in Everything we do: Best service with the best products. - Double-year warranty on labor. - Emergency Service: We're ON 24/7 to ensure your well-being.
"Overpriced and incompetent. JN Service has worked on my house 5+ times in the last month, totaling nearly $10k, and every visit created a new problem that cost more to fix. Most recently, they came for a small leak and left after cutting/breaking multiple pipes, leaving my entire home with no running water?despite assuring me I?d have at least cold water. They then returned only with an expensive full-home repipe quote, refusing to even quote a local repair. I?ve since had three other plumbing companies inspect everything; all agreed that JN?s technical decisions were poor, their repipe quote was severely overpriced, and their quote structure (initially with almost no detail) was concerning at best, predatory at worst. I will never use JN Service again and strongly recommend others avoid them."
Joseph N on December 2025

All Phases Mechanical is a locally owned, and operated company that values honesty, integrity, and treats your home as if it were our own. You will find us to be competitively priced, while still paying close attention to the details of each, and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction. Give us a call today to get your project started! We now offer financing apply now https://app.gethearth.com/partners/all-phases-mechanical/carl
"All phases mechanical do a absolutely amazing job, the owner was in constant contact with me about how the job was progressing and their lead technician Victor worked as long as it took to get my heat up and running. Great customer service and great work ethic."
Adam c on January 2026
All Phases Mechanical is a locally owned, and operated company that values honesty, integrity, and treats your home as if it were our own. You will find us to be competitively priced, while still paying close attention to the details of each, and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction. Give us a call today to get your project started! We now offer financing apply now https://app.gethearth.com/partners/all-phases-mechanical/carl
"All phases mechanical do a absolutely amazing job, the owner was in constant contact with me about how the job was progressing and their lead technician Victor worked as long as it took to get my heat up and running. Great customer service and great work ethic."
Adam c on January 2026

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
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