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Comprehensive Residential & Commercial HVAC, Plumbing & Pipefitting, Construction, and Building Automation Services

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Who 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.

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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.

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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.

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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.

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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.

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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.

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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!

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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.

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Great tech, good communication and people skll s along good technical trouble shooting and diagnostic skills

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The technicians that came today were professional and explained the problem clearly. We are looking forward to implementing the new system.

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Patrick Boyle was awesome, straightforward and right to the point. That we didn’t follow through with the plan we knew exactly where we stood with Patrick and Dual Temp . Thank you, Ralph

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We are pleased to post the exceptional experience we received from DUAL TEMP today. From the initial contact with Kim , who professionally and promptly dispatched a skilled tech named Patrick. Between these two 5star team players , our HVAC issue was resolved in a timely manner and at a reasonable rate. We’re definitely going to be repeat customers and highly recommend them.

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Patrick is extremely knowledgeable and did an excellent job servicing my heating system. I would highly recommend him to anyone!

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Just wanted to give a special thanks to Patrick Boyle of Dual Temp for coming out today and fixing my gas furnace in a speedy and efficient manner, from diagnoses to fixing the issue went very well , he knows what hes doing !

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Hi ,we Hired Dual Temp to install a new gas furnace and new water Heater, They did an excellent job! They are very professional and the price was very reasonable. I would definitely hire them again in the future.Thank you !! Sincerely Harry R.

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Patrick Boyle, my Technician, went above and beyond to complete my furnace tuneup to my Total Satisfaction. From the text to inform me that he was on his way, to a follow-up phone call to explain what work was preformed. This was my first time using Dual Temp, And they are now the ONLY HVAC company that I will ever use! Thanks Patrick…. And Dual Temp.

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Awesome job very professional clean work

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Response time is very good. Techs are professional and good to work with. Great at analyzing and repairs.Always glad to see DualTemp onsite making us all look good. Thanks for your Great services.

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I recently had a great experience with Dual Temp. From start to finish, their service was top-notch. Joe, the sales manager, was incredibly friendly and knowledgeable. He came out the same day to give us quotes on both a tankless and a regular water heater, taking the time to carefully explain the pros and cons of each option. Once we decided on the best option for our home, David came out the next day to handle the installation. He was punctual, very clean in his work, and incredibly thorough. It was clear he took pride in doing the job right. Overall, I couldn’t be happier with the service we received. If you’re looking for a company that’s responsive, professional, and cares about getting the details right, I highly recommend Dual Temp Co Inc.

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David came out and did a great job and was done within an hour. didn’t try to sneak in any kind of fees or charge for extra time.

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I can’t say enough good things about our experience with Dual Temp. After several issues with our AC over the last several months it was determined that it was time to start looking for a new system. I called on a Friday morning to request a quote. They were able to have someone come out the same day. Joe was great. He was very nice and answered my husband’s questions as well as address a concern we had with air flow to our bedroom due to a smashed piece of ductwork that’s been that way apparently since the house was built. I had an estimate in my email around 5 PM that same evening. We were provided with 3 options in the quote. Sort of a good, better, best option. We had a few additional questions which I emailed Joe about and he was very quick and responsive to my questions. After getting one other quote from another company we decided to go with Dual Temp. After only 2 weeks from the initial quote our new system was installed this week. Patrick and David were the technicians that came to install and they were just as amazing to work with. They were polite, knowledgeable and explained the system and new thermostat very well. I am not one to typically write reviews but I do read them while doing my research. I can only suggest that you give them a chance at addressing your needs. Thanks again for the great service. I look forward to the same great service in the future for routine maintenance as needed.

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Needed a new heating/ac system installed. Received a few estimates and had a friend refer me to Dual Temp because she had a great experience. Joe came out promptly and provided us with 4 options. Very knowledgeable in helping with our unique situation. Installation was prompt and quick. The young men who came out were extremely professional and very considerate. Would highly recommend them!

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Patrick was considerate and professional in installing our new hot water heater. It was a pleasure dealing with Patrick and everyone at Dual Temp.

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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!

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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!

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I recently had two HVAC units installed in my home by Dual Temp Home Services, and I have to say, they exceeded my expectations in every way. I’m not easily pleased, but from start to finish, their team went above and beyond. The installers were professional, efficient, and took great care to keep my house clean. They were also mindful of my pets, which I truly appreciated!

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Very professional and quick service. I highly recommend it.

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One of the best in the Lehigh Valley when it comes to HVAC!

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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

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Joe was professional and personable. He shared all relevant information and added much to our understanding of what was available. A really good interaction.

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.

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