As Boston's leading industrial mechanical contractor, Cannistraro is the premier provider of mechanical construction solutions. Specializing in HVAC, plumbing, and fire protection, our in-house fabrication capabilities and cutting-edge technology are designed to streamline your next construction project. From repair and maintenance to comprehensive design and project management services, Cannistraro is a fire system, plumbing, and HVAC mechanical contractor who can handle all of your mechanical construction needs.

Facility emergencies lead to major business disruptors like water damage, lost revenue, and dissatisfied customers, and we know finding a contractor at the last minute while factoring in budget constraints can quickly get out of hand. That's where Cannistraro can help. Our around-the-clock emergency mechanical services ensure that we're always here for you when you need us most. HVAC systems are most prone to breaking down during seasons of peak demand-the height of summer and the throes of winter.

With our own in-house sheet metal fabrication services, Cannistraro's experts can engineer, install, commission, and maintain any of your facility's heating and cooling systems. Plus, we have the skills to work on any type of HVAC system, including hospital-grade chillers, air handlers, high-efficiency boilers, and cogeneration plants. Your facility's commercial HVAC infrastructure is not only critical to indoor air quality and comfort-it can also help your company achieve energy savings in order to minimize overhead.

At Cannistraro, we've dedicated ourselves to being the single source for all of your mechanical construction, fabrication, and installation needs. With our in-house fabrication shop, you can be confident that your equipment is installed and backed by the same team of professionals who built it. At the same time, no mechanical project is too large or small for Cannistraro to handle. On a construction project, the more contractors and subcontractors that get involved, the greater the risk of miscommunication and critical project errors.

In 1963, John Cannistraro, Sr. set out to achieve his lifelong goal of entrepreneurship with little more than $1,500 and the support of his wife, Rita. Since then, the family-owned plumbing shop he started has grown into Boston's largest mechanical construction firm with more than 1,000 employees. Today, we're proud to offer a full-service approach to all of your organization's mechanical construction and maintenance needs by delivering complete plumbing, HVAC, and fire protection solutions. When you partner with Cannistraro, we leverage 56+ years of experience with the latest technology and self-performing fabrication capabilities to streamline any mechanical construction or maintenance project.

For projects of all sizes, Cannistraro can simplify all of your commercial building's HVAC, plumbing, and fire protection requirements with our on-site fabrication shop and self-performing solutions. Today's office buildings support increasingly complex infrastructure, including office HVAC systems, commercial plumbing, and fire protection equipment. This equipment is critical to maintaining a productive, comfortable, and safe environment for employees, visitors, and clients. Whether it's time for your company to retrofit outdated systems, or you're in the process of constructing a new building from the ground up, Cannistraro's team has the skills and experience to be the single source for all of your project's HVAC, plumbing, and fire protection requirements.

At Cannistraro, we're not your average engineering company. Specializing in plumbing, fire systems, and HVAC mechanical engineering, we take a holistic approach to your project needs. Our in-house engineers inform every step of the design process to deliver a solution that's reliable, cost effective, and structurally sound. From there, we handle the rest of your needs, including project management, procurement, installation, and commissioning for a total package, all with the accountability of a single partner.

The Cannistraro team takes a hands-on approach to each mechanical construction project we undertake. With the capabilities to handle everything from project management and design-build solutions to engineering and 3D laser scanning, we're there to streamline construction timelines while prioritizing worksite safety. Our in-house design and fabrication capabilities allow us to deliver accountability and clear communication at every phase of construction. At the same time, our service technicians also have the skills to install and service your critical infrastructure.

When you partner with Cannistraro, we offer a wide range of preconstruction services to give you a clear idea of project scope, estimates, design specifications, and construction timelines. With a deeper understanding of how various trades interact, we can get involved early on to minimize the risk of project delays while simplifying complex projects. In our experience, the success of any construction project can often be determined during the first few phases of the preconstruction planning process.

At Cannistraro, our 24-hour mechanical facility service solutions are designed to keep your building running at peak performance while minimizing operational costs. When you partner with us, you also gain access to a personalized client portal that provides real-time information on service history and work orders along with digital invoicing schedules for all of your HVAC, plumbing, and fire protection systems. We provide preventative maintenance plans along with around-the-clock emergency repair to keep facility infrastructure protected at every level.

The diverse group of experts at Cannistraro specialize in developing customized preventative maintenance programs for all of your facility's mechanical systems, including HVAC, plumbing, and fire systems. Our preventative maintenance plans not only reduce the risk of critical downtime, but they also maximize your investment to protect your business's bottom line. With our preventative service contracts, you're guaranteed a two-hour response time. Did you know that many mechanical manufacturers require proof of maintenance in order to honor equipment warranties?

At Cannistraro, our success is driven by our people. From our roots as a family-owned plumbing shop to our growth to become Boston's largest mechanical contractor, everything we do is guided by our approach to putting people first. In June of 1963, John Cannistraro, Sr. set out to achieve his lifelong goal of entrepreneurship with little more than $1,500 and the support of his wife, Rita. Over 55 years later, the family-owned plumbing shop he founded has developed into a world-class, mechanical construction firm with over 1,000 employees and a sterling reputation for quality and innovation.

In 1963, Cannistraro started as a family-owned plumbing shop. Today, we're proud to have grown into a comprehensive mechanical construction firm with the same commitment to quality and trust. While we now offer more than just plumbing services, we still remain dedicated to the trade in a way that continues the legacy of our founder. From complete plumbing project management to 24-hour emergency services, Cannistraro is here for all of your commercial plumbing needs. Need new plumbing infrastructure designed and built from the ground up?

Just do your job and they treat you great. They are the best.

It's the most professional and family like company I've ever experienced. Very awesome place to work!

I couldn't see myself working anywhere but here at Cannistraro. How many people do you know that can actually say they "love their job"? Well I am.

What's new?

In November and December of 2015, Marr Crane & Rigging worked for J.C. Cannistraro over at the Amgen Next Generation Labs at One Kendall Square in Cambridge, MA. Marr was responsible for trucking and hoisting pre-assembled modules into the labs. To learn more about the complex process involved and...

Posted on Mar 09, 2021  •  Facebook

Yesterday, Cannistraro opened the doors of The FID for a celebration of our team, our family, and our friends who have made Boston's construction industry home for the past 55 years. Our new Seaport facility houses all of Cannistraro's fabrication operations for plumbing, HVAC, fire protection,...

Posted on Jun 15, 2018  •  Facebook

Today may be #starwarsday but R-22 isn't a Droid. Read our latest blog post about the upcoming R-22 Phaseout… https://t.co/eWUQSXe3dA

Posted on May 04, 2018  •  Twitter

Proud of the game-changing project profiled in the latest @ASMBoston @BankerTradesman publication: Professional Con… https://t.co/5Cyq3nVaC7

Posted on Apr 26, 2018  •  Twitter

Great piece from @ENR_NE naming 50-60 Binney the project of the year for last year. Congrats @TurnerBinney @SGAarch https://t.co/kAKVUtPDVS

Posted on Apr 23, 2018  •  Twitter

We've been proud of the @Pierce_Boston project since day 1 | Take a 360-Degree Look Inside the Pierce Boston… https://t.co/XFnHUihXDJ

Posted on Apr 10, 2018  •  Twitter

Proud to witness our own Justin Azbill presented with the @esgr #PatriotAward in honor of his support of the U.S. N… https://t.co/D6svCJOCXM

Posted on Mar 28, 2018  •  Twitter

Recapping the @BisnowBoston #Boston #Construction and #Development Event https://t.co/RKTqKPLc0L https://t.co/U4WoK5pB9l

Posted on Mar 22, 2018  •  Twitter

Tips to Make NFPA 241 Compliance Safe & Easy #NFPA #NFPA241 #fireprotection #planworklivesafe https://t.co/aH3ZyF5WmI

Posted on Mar 13, 2018  •  Twitter

We agree with our friends from Turner 100% | How Pre-Task Exercises Build a Strong Safety Core https://t.co/rmiWoE1A0z by @EHSToday

Posted on Mar 12, 2018  •  Twitter

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