We're HIRING! Click here to see our open opportunities

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

Learn More
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.

dths 1 scaled

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.

Learn More >
website 51

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.

Learn More >
team 01 scaled

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.

Learn More >
20240731 hamilton moxy 3 1 1

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.

Learn More >
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.

google

David called to ask if he could arrive a little earlier than he was expected. He was coming to do my routine yearly service on my furnace. Once he was there he did an excellent job and I would definitely recommend Dual Temp!

google

Great Job!! I was really impressed with the in-depth knowledge that tech had with my system. Clean and thorough!

google

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!

google

Wow, what a great experience! I had Dual Temp install a Tankless Hot Water Heater in my home. The entire experience and crew was tip top from 1st inquiry call to final install. Dual Temp was professional, experienced, respectful of my home and they worked really hard to make everything PERFECT.. They did such a great job, now i even gained closet space where the old hot water heater was!!! Thank you Dual Temp, I look forward to recommending you to my friends and family. Thanks again!!

google

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

google

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

google

Excellent trouble shooting and great remedial proposals. Knowledgeable and efficient technician

google

Patrick was very knowledgeable and thorough. He did a great job servicing our heating and air conditioning units.

google

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 ⭐️

google

Always timely, polite, professional and informative. Makes making decisions easy. Great to work with outstanding service. I can highly recommend.

google

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

google

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.

google

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.

google

Staff was courteous, well trained and did an excellent installation

google

Dual Temp Home Services delivered a great customer experience - easy scheduling, proactive communications, and reasonable pricing. Our technician Patrick Boyle was awesome - arrived on time, friendly, knowledgeable, helpful, and courteous! A true professional! Definitely recommend having Dual Temp and Patrick support your HVAC needs!

google

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

google

Fantastic service, very friendly, prompt.. overall they're just fantastic! Highly recommend!

google

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.

google

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.

google

The technician was punctual, thorough, clean, and friendly. Our home is in good hands with Dual Temp.

google

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.

google

Great service! This company repaired my air conditioning unit this week . David is an awesome technician. He’s polite respectful and thorough. I’m incredibly happy with the companies service this week and David is a great representation of your company…. Thank you

google

Technician responded quickly on a holiday and we scheduled for a repair the next day. He was commutative and friendly through out the repair process as well as a problem solver when faced with a change. Pricing was more than fair!

google

Very good service. Very reasonable and explains all issue and problems well. Very thorough and caught extra stuff

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.

dual temp map all scaled