Comfort Experts for Over 50 Years
Comprehensive Residential & Commercial HVAC, Plumbing & Pipefitting, Construction, and Building Automation Services
Learn MoreWho we are
About Dual Temp
Dual Temp Company is a trusted mechanical contracting firm based in Allentown, Pennsylvania, proudly serving Eastern Pennsylvania and New Jersey since 1970. We specialize in commercial HVAC systems, industrial plumbing, and advanced building automation solutions. Our expert team also provides high-quality residential HVAC services through our dedicated division, Dual Temp Home Services.
With over 50 years of experience, Dual Temp is known for delivering cost-effective, energy-efficient mechanical solutions tailored to the needs of commercial, industrial, institutional, and residential clients. Our commitment to excellence, cutting-edge technology, and reliable service makes us a top choice for HVAC installation, plumbing systems, building controls, and preventative maintenance in the Lehigh Valley and beyond.
Whether you’re upgrading existing systems or planning new construction, Dual Temp offers the expertise and proven results to keep your building running efficiently and comfortably.
Dual Temp Company has served Eastern Pennsylvania and New Jersey since 1970 as a trusted mechanical contractor specializing in commercial HVAC, industrial plumbing, and building automation. Based in Allentown, we also provide residential services through Dual Temp Home Services. With over 50 years of experience, we deliver cost-effective, energy-efficient solutions for commercial, industrial, and residential clients throughout the Lehigh Valley. From installations to preventative maintenance, we keep your building running efficiently and comfortably.
EXPERIENCE & EXPERTISE
COMPREHENSIVE SERVICES
COMMITMENT TO QUALITY
what we do
Our Services
We offer a wide range of services, including air conditioning, heating, piping, plumbing, pipefitting, building automation controls, and boiler or chiller repair. We serve a variety of facilities across Pennsylvania and New Jersey, from commercial buildings to industrial plants and institutional facilities. Our team is always innovating and finding ways to save you money and energy, ensuring that all your mechanical needs are met with the highest level of quality and reliability. Dual Temp Home Services provides residential HVAC solutions to keep your home cozy all year round.
We provide air conditioning, heating, plumbing, pipefitting, building automation, and boiler/chiller repair across Pennsylvania and New Jersey. From commercial buildings to industrial plants, our team delivers innovative, cost-effective solutions that save energy while ensuring quality and reliability. Dual Temp Home Services handles all residential HVAC needs to keep homes in the Lehigh Valley comfortable year-round.
Home Services
Dual Temp Home Services provides heating, cooling, and hot water solutions throughout the Lehigh Valley. Our certified technicians handle installations, repairs, smart thermostats, and air quality upgrades to keep your home comfortable year-round.
Commercial Services
We deliver comprehensive HVAC, plumbing, and mechanical solutions for commercial buildings across Eastern Pennsylvania and New Jersey. From boilers to medical gas systems, we focus on energy efficiency and reliable operation.
Construction Services
Our design-build team handles mechanical, HVAC, and plumbing systems for commercial and industrial construction projects. We work with owners and contractors to deliver high-performance solutions on time and on budget.
Building Automation
We design intelligent systems that optimize lighting, temperature, and climate for improved comfort and energy efficiency. Our solutions range from simple controls to integrated smart building platforms.
How We’re Doing
What Our Customers Are Saying
At Dual Temp, we pride ourselves on delivering exceptional HVAC solutions to businesses across the region. Our commitment to quality, prompt response times, and deep industry knowledge have earned us the trust and satisfaction of numerous clients. Discover why businesses choose Dual Temp for their commercial HVAC needs.
After using another company to try to figure out an issue with our mini splits over the course of several visits, we called Dual Temp - they sent 2 people out the same morning who identified the issue within an hour, explained how the whole system worked, and explained the needed repairs. We’re very happy to move forward with Dual Temp and appreciate the professionalism and expertise!
Patrick was considerate and professional in installing our new hot water heater. It was a pleasure dealing with Patrick and everyone at Dual Temp.
We moved into an old home with an old oil furnace that we knew was on its way out. Joe, David, and crew were great and replaced our old furnace with a new one. We had only one issue which was that the additional room that was added onto this house in 2010 didn’t include a way to bleed out the baseboards. They found a solution and fixed the issue. Dual temp is a great company with great people!
Patrick is amazing. So is the entire dual temp team. They really take their customer service to the level of extraordinary. I highly recommend dual temp for any and all HVAC needs. So happy they are doing residential now. Just amazing updated June 2025
David D'Agostino was very thorough, professional and knowledgeable about my furnace and heat pump. He explained about the failed part, gave me the option to replace or wait. Great service call. I will have Dual Temp and hopefully, David, for future maintenance.
Patrick was able to fix our furnace issue, including locating the spare parts at an acceptable price level. I appreciate the professionalism and quality of service. Thank you
Outstanding service and top notch customer service. Patrick came over was super friendly and very professional. He explained all my issues and options to get my home running safely again. I will definitely call again to schedule a full upgrade. Thanks to Patrick and this company I now know how I was blind to the dangerous furnaces I been running in my home. Thanks for coming right away when all the other companies only gave excuses and appointments for a future day.
Very professional and highly qualified. Worked on my commercial freezer and fixed a long time problem no one else has. Highly recommend and thanks!!!!
The technicians that came today were professional and explained the problem clearly. We are looking forward to implementing the new system.
This was our first experience with Dual TempPatrick serviced our Two air conditioner units, he was very thorough and explained everything that he was doing took lots of pictures to share the condition of our units with us. We will definitely be using Dual Temp for other services
Great pricing and quick response time with work finished early. The crew was courteous, communicative, and extremely helpful. It was a pleasure doing business with Dual Temp. 5 ⭐️
Patrick showed up on time and is a great guy! He did a awesome job and is very knowledgeable. He was very thorough and ensured that everything was properly cleaned and works like new. Thank you!
Patrick is polite and very informed. He shows concern and makes recommendations to address anything that could be problematic or preventative for future issues with our furnace.
Joe from Dual Temp was very knowledgable, asked clarifying questions to understand what we want and what we need to get us the best benefit and pricing proposals. Very Satisfied!
We have been using Dual Temp for several years now and we are very satisfied with the service. Reactionary maintenance and/or emergency items are hard to manage from a remote site. Dual Temp does a GREAT JOB of taking care of our maintenance needs and they react in a timely manner.
Absolutely incredible experience. First HVAC company to ask me if my airflow is comfortable. They did a thorough review and adjusted the dampers to provide better air flow and comfort. They did a really nice job installing a new humidifier for me. And also they installed a Reme Halo Air Purification in my home. They were professional and clean. Highly recommend.
The technician was punctual, thorough, clean, and friendly. Our home is in good hands with Dual Temp.
We will definitely use Dual Temp again. From Joe doing the estimate to Patrick installing new baseboard heat registers they were friendly, professional and we were very happy with the price. Patrick did a great job, so happy we chose them!
Patrick did a nice job, very thorough, explained everything, streamlined a few items, pleasant and efficient.
Patrick was very knowledgeable and thorough. He did a great job servicing our heating and air conditioning units.
Joe was a number 10 .clearly a good guy! Very pleasant,friendly,answered my guestions and calmed me down! Das is good! Thank-you Thank-you! God wins!
Patrick was very professional in his time at my house. Went over my system to troubleshoot the issues I was having with my ac unit. Gave me a great description of what happened and options to repair. He also found an issue with my propane water heater that was a potential safety concern and I was able to get that resolved. It was still under warranty from our plumber so with Patrick find he was able to solve the issue. It was lucky I made the call to Dual Temp for Service.
Joe came over to give me an estimate on a new boiler. He was very professional and knowledgeable. He explained my options and answered all the questions that I had I feel it was a very productive meeting and I walked away feeling comfortable.
Where we work
Our Service Area
Dual Temp proudly serves homeowners and businesses across a wide region. Our Home Services team covers the Greater Lehigh Valley, delivering expert HVAC repairs, installations, and maintenance with fast, friendly service. For Commercial HVAC, Construction Services, and Building Automation, we operate throughout Eastern Pennsylvania and New Jersey, providing innovative solutions for complex systems in healthcare, education, manufacturing, and beyond. No matter the project size, we’re committed to comfort, efficiency, and long-term reliability across every zip code we serve.
