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30 Years
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Emergency
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Trusted HVAC Services in South Jersey
J&J Mechanical is a family-owned and operated HVAC company serving South Jersey and Southeastern Pennsylvania for over 29 years. Our N.A.T.E certified technicians provide expert heating, air conditioning, and generator services, including emergency repairs available 7 days a week. We prioritize customer education, offering tailored solutions for residential and commercial needs while maintaining a commitment to community involvement and environmental responsibility. Our team combines decades of experience with advanced technology to ensure system efficiency and longevity.

We guarantee upfront pricing, no hidden fees, and personalized service, including annual maintenance agreements and energy audits. As a trusted local partner, we support community initiatives and offer discounts to first responders, teachers, and military members. Our mission focuses on integrity, technical excellence, and customer satisfaction, backed by transparent communication and 24/7 emergency support.
Services
Air Conditioning Installation Heating System Repair Generator Installation Air Scrubber Systems Boiler Maintenance HVAC Maintenance Agreements Emergency HVAC Service Water Heater Replacement Indoor Air Quality Solutions Furnace Replacement
Details
  • Year established: 1996
Highlights and features
  • 29 years of local HVAC expertise with NATE-certified technicians
  • 24/7 emergency repair service available 365 days a year
  • Transparent pricing with no hidden fees or surprises
  • Customized energy-efficient solutions for residential/commercial needs
  • Community-focused business offering 10% discounts to first responders and seniors
Associations and certifications
  • North American Technician Excellence (NATE)
What people say
Professional technicians Timely service Transparent pricing Reliable repairs Excellent communication
Services
Air Conditioning Installation
Professional air conditioning installation services using top-brand equipment. Our experts assess your space to recommend optimal systems with detailed cost breakdowns. Includes ductwork, thermostat, and electrical system installation with post-installation testing. Serving residential and commercial clients in Gloucester and Salem counties.
Emergency HVAC Repair
Round-the-clock emergency HVAC services for urgent heating and cooling issues. NATE-certified technicians respond promptly with fully stocked vehicles for immediate repairs. Covers all system types including gas, oil, and electric units across South Jersey and Southeastern Pennsylvania.
Generator Installation
Complete generator solutions featuring Generac systems for residential and commercial properties. Services include load calculation, system sizing, professional installation, and maintenance. Provides uninterrupted power during outages with financing options available for qualified customers.
Air Scrubber Systems
Advanced indoor air quality solutions using Aerus Air Scrubber technology. Reduces 99.9% of airborne contaminants through ActivePure Technology. Installed directly into HVAC systems for continuous purification, protecting both residential and commercial environments while extending equipment lifespan.
Heating System Maintenance
Comprehensive heating system maintenance agreements to optimize performance and longevity. Includes seasonal inspections, component lubrication, and efficiency testing. Prevents costly breakdowns during peak usage months with priority scheduling for agreement holders.
Questions
What HVAC services do you offer?
We provide full-service HVAC solutions including installation, repair, and maintenance for heating, cooling, and air quality systems, plus generator installations and emergency services.
Do you offer 24/7 emergency service?
Yes, our NATE-certified technicians are available for emergency HVAC repairs 24 hours a day, 7 days a week with no additional charges for after-hours service.
What financing options are available?
We offer 0% financing options through partner programs for qualified customers on HVAC system replacements and major repairs with terms up to 84 months.
Are you licensed and insured?
We hold active HVAC licenses in New Jersey (13VH04599300) and Pennsylvania (PA009665) with full liability insurance coverage for all residential and commercial projects.
Do you service all HVAC brands?
Yes, our technicians work on all major HVAC brands including Carrier, Trane, Lennox, and Bryant, with specialized training on both modern and legacy system models.
What areas do you serve?
We serve all of South Jersey including Gloucester, Salem, and Camden counties, plus Southeastern Pennsylvania locations within 30 miles of Mickleton, NJ.
Reviews (7)
Nina Justice
Dec 27, 2021 Report
Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
Everything worked out perfectly using J&J! Thank you all so much!
Service:Heating maintenance
Chuck Quinn
Dec 23, 2021 Report
Positive:Professionalism,Punctuality,Quality,Responsiveness,Value
Best HVAC company in South Jersey! Came to my rescue on Thanksgiving morning for no heat call. My original HVAC company refused. Excellent communication, excellent work, excellent crew
Services:Install thermostat,Repair heating system
Rob Moore
Dec 02, 2021 Report
Evan and Gene were very customer friendly. They diagnosed the problem and made recommendation. I would definitely recommend them.
Nicholas Colubriale
Nov 19, 2021 Report
Positive:Professionalism,Punctuality,Responsiveness
I was able to schedule a service visit timely, the technicians were on time and extremely friendly, and they explained in detail all of the work they performed. Overall great experience and would definitely recommend.
Service:Heating maintenance
Christina Adams Kenney
Nov 09, 2021 Report
My husband was happy with your service. Our fireplace is back to working! The girl who scheduled our appointment was super sweet and professional as well.
Louis Morford
Oct 06, 2021 Report
Showed up on time. Explained procedure. Left area clean and orderly Nicole in the office is outstanding to work with for scheduling and follow up An outstanding local company I highly recommend to family and friends.
Service:HVAC maintenance
Rose Heupler
Sep 23, 2021 Report
I can't say enough wonderful things about J&J Mechanical Inc. We had our AC replaced and everything about the experience was exceptional from start to finish. Nicole in the office is a sweetheart, and John the owner is friendly, knowledgeable, and kind. He went out of his way to explain everything in great detail and make sure that I felt comfortable with the whole process. He and his crew (Dom and Eugene) came out quickly and on time. They got the job done with tremendous efficiency, cleanliness, and respect for our home. John's crew was also very friendly and knowledgeable and did an exceptional