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5 Years
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Emergency
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Your Trusted Commercial HVAC & Plumbing Contractor in Manchester, NH
Denron Hall is a licensed and insured commercial plumbing and HVAC contractor with decades of combined experience serving New England. Our team of highly trained professionals specializes in design-build HVAC systems, plumbing installations, emergency services, and preventive maintenance for commercial and industrial clients. We prioritize completing projects on time, within budget, and with minimal disruption, guided by a commitment to long-term customer satisfaction. Our expertise spans temperature and humidity control, energy recovery systems, medical gas piping, and building automation systems across all building classifications.

With a safety-first culture and 24/7 emergency response capabilities, we combine technical proficiency with personalized service to deliver reliable solutions tailored to each client's unique needs. Our legacy of excellence, built through the merger of two industry-leading firms in 2021, ensures clients benefit from both innovation and proven expertise in every project.
Services
HVAC Design-Build Commercial Plumbing Service Emergency Plumbing Service Building Automation Systems Medical Gas Piping CAD Department Project Management Commercial HVAC Service Commercial Drain Cleaning Air Purification Services
Details
  • Year established: 2021
Highlights and features
  • We offer 24/7 emergency service with rapid response times.
  • Our team completes projects on time and within budget.
  • We are fully licensed and insured for commercial operations.
  • Our unmatched customer service spans over 40 years of industry leadership.
  • We employ certified professionals with specialized HVAC and plumbing expertise.
Associations and certifications
  • Mitsubishi Electric Diamond Contractor
What people say
Leader in their field Very satisfied Great job Highly recommend Tremendous benefit
Services
HVAC Design-Build
Our HVAC design-build service delivers customized heating, ventilation, and air conditioning systems tailored to commercial and industrial needs. From concept to installation, we engineer energy-efficient solutions that meet precise temperature, humidity, and operational requirements while ensuring long-term cost-effectiveness. Our integrated approach guarantees seamless project execution from initial design through final implementation.
Commercial Plumbing Service
We provide comprehensive commercial plumbing services including system installation, preventive maintenance, and emergency repairs. Our licensed plumbers handle complex projects involving sewer systems, drainage, and code-compliant piping installations. With 24/7 emergency response capabilities, we minimize operational disruptions while maintaining the highest standards of safety and compliance for industrial and commercial properties.
Building Automation Systems
Our building automation systems integrate HVAC, lighting, and security controls into centralized management platforms. This service optimizes energy efficiency, enhances occupant comfort, and reduces operational costs through programmable scheduling and real-time monitoring. We design and implement scalable solutions that adapt to evolving commercial facility requirements while ensuring system reliability and code compliance.
Emergency Drain Cleaning
We offer rapid-response emergency drain cleaning services for commercial properties experiencing blockages or system failures. Using advanced equipment, our technicians clear obstructions in sewer lines, storm drains, and industrial piping systems. This service includes preventive maintenance contracts and same-day emergency response to minimize downtime and prevent recurring issues in high-demand commercial environments.
Medical Gas Piping
Our medical gas piping installations meet strict healthcare facility requirements for oxygen, vacuum, and specialized gas distribution systems. We ensure compliance with NFPA 99 standards through precision welding, pressure testing, and documentation. This service supports hospitals, clinics, and laboratories with reliable, code-compliant gas delivery systems designed for patient safety and uninterrupted medical operations.
People
Joel Pickering
President
Joel Pickering oversees project assessment and execution, leveraging his HVAC systems degree and MBA. He teaches at Manchester Community College and serves on the HVAC department advisory board, combining academic expertise with practical leadership in mechanical contracting.
Michelle Delois
CFO
Michelle Delois brings 30 years of accounting experience, managing financial planning and internal controls. A certified public accountant from Bentley University, she specializes in cash flow management and financial strategy for construction industry operations.
Chad Vittone
COO
Chad Vittone directs corporate operations with 25+ years in construction finance and management. He develops business policies and implements process improvements, focusing on operational efficiency and financial performance across all company departments.
Joseph Nash
Executive Vice President of Operations
Joseph Nash oversees project execution with 16 years at Denron, progressing from apprentice to executive leadership. He holds master plumbing licenses in multiple states and manages operational logistics for complex commercial projects.
Steve Bienvenue
Vice President of Project Supervision
Steve Bienvenue supervises major projects with 37 years of experience, holding master plumbing licenses in New Hampshire and Maine. He manages contract negotiations, pricing, and project documentation while maintaining field operations expertise.
Questions
Do you offer 24/7 emergency plumbing and HVAC services?
Yes, we provide 24/7 emergency response for plumbing and HVAC issues across New England with rapid on-site support.
What commercial services do you specialize in?
We specialize in HVAC design-build systems, commercial plumbing, building automation, medical gas piping, and emergency drain cleaning services.
Are your technicians licensed and insured?
Yes, all our technicians are fully licensed, insured, and certified in their respective specialties for commercial operations.
Which areas do you serve?
We serve commercial clients throughout New England, including New Hampshire, Massachusetts, and Maine.
How do you ensure project timelines and budgets?
Our proven project management approach includes detailed planning, experienced supervision, and regular client communication to guarantee on-time, on-budget completion.
What safety certifications do you maintain?
We follow ABC's zero-accident workplace standards and maintain industry-leading safety protocols for all field operations.
Reviews (4)
Ty
Jun 12, 2021 Report
The best Plumbing & HVAC Company around! The Owners are great people & all of the staff are great as well. Family oriented company that puts their employees first. Their Plumbers & HVAC Techs do great work. Can't say enough about this place.
T.
Dec 21, 2020 Report
These folks don't do residential plumbing work at all don't call them for a repair you'd be better off googling it and fix it yourself.the woman in the office? She's extremely rude and complacent. Do yourself a huge favor and get some other outfit to fix your problem. Nuff said. T2
David Cressey
May 19, 2020 Report
I've been employed @ Denron since 1985,C elebrated 32 years. A wonderful group of Co workers That provide quality craftsmanship to ensure our Genral Contractors rest easy schedules are met. A Top notch management team committed to their staff, plus provide a guaranty Service will always be a priority.
Nathan Gloe
Mar 11, 2020 Report
Heater they installed started leaking after being installed for only a few months. Called to ask if there was a warranty, and they said they would have to send someone out to see. The person came and attempted to fix, with no mention of cost. It started leaking again a day later, so I called them back and they sent someone else to fix. Still no mention of cost. Months later I get a very large bill from them for the repairs. Do not expect any transparency or good service, but at least they fixed the issue eventually.