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Deiter Bros. Heating Cooling Energy of Allentown, PA

24 Hr emergency service for our customers.

Your Neighborhood Service Company in Allentown

Mechanical Contractors: Heating Cooling Energy in Allentown PA – Propane Supplier, Fuel Delivery – Fireplace – Generators & Water Conditioning Installations. We at Deiter Bros provide the most complete mechanical installation and services in Allentown PA. You might not know this but, mechanical and ac systems that require constant repair just are not worth investing in because you start putting good money into bad equipment. It isn’t cost effective to repair these systems the aggregate cost of repairs ends up being more than what you could spend on a purchasing a brand new installation. Deiter Bros. Is Your Local Hometown Mechanical Contractors.

Do you have Installation or service needs? We do everything from, Air Conditioning, Heat pump, and Furnace installations and repairs, A/C installation, A/C servicing, Duct cleaning, Hot water heater installation and repair and Home heating oil delivery & are propane suppliers. It’s better to get your home’s cooling and heating needs checked and serviced regularly for your safety and comfort. Deiter Bros. Heating Cooling Energy 522 Harrison St Allentown, PA 18103 call (610) 770-6019


Serving Lehigh Valley Homes and Businesses Since 1929


Our goal has always been to exceed your expectations. We have designed this site to provide you with a wealth of information on our many products and services. We are always researching the latest technology in energy efficient systemsHVAC services, and must have indoor comfort items and offering fast, affordable Oil Delivery and Propane Services.

Energy assistance programs are available to low income homes to help pay for heating bills. 

Take Charge of Your Fuel Bills

Make your average heating oil and propane bills smaller and easier to handle

Award Winning Reputation

Deiter Bros ReviewsOur generations of experience delivering the highest quality service available to over 135,000 customers, In the Lehigh Valley Deiter Bros Service has become a leader in the industry with its A+ rating with the BBB.  The trusted and reliable provider for heating, cooling, Back up Generators, Water Conditioning, Fuel Delivery and Propane delivery services. Call Now (610) 258-4328.
  • We have been in business for over 88 Years.
  • Our technical staff has a combined 250 + years of experience.
  • Technical staff stays up-to-date on all new technology by attending numerous schools and seminars each year as our ongoing commitment to continuing education.
  • Every customer receives our exclusive No Hassle 1-Year Guarantee on every installation and repair that we make.
  • We are an Angie’s List Super Service award-winning company.
  • A+ BBB rated, and a record-setting 31 year in a row.
  • Who’s Who in business Lehigh Valley award winner.
  • Our Employees are drug-free and bonded.
Business & Home Services

Heating and Air Conditioning Services

Allentown, PA
In Allentown, PA we have technicians who have been trained and highly rated in this city and the most sought after to take care of your Air conditioning, heating, geothermal, propane, oil installations& many others.

HVAC Services and Installations
Deiter Brothers of Allentown will take care of all your HVAC services. We are available 24/7 to install, conduct maintenance and repair services. Our services can be readily accessed online and the good thing is that we work with all models and makes. We work with residential and business customers. Our contractors have a long term experience.

Air Conditioning Services and Installations
Deiter Brothers of Allentown, PA will take care of all your air conditioning services and installations. We have great feedback from our clients and we always deliver quality services to give our clients the extra comfort needed in their homes. We always leave a home better than we found it.

Heating Services and Installations
All heating services and installations are available at Allentown, PA location. We have highly qualified and trained specialists who have the ability to service heating systems of all brands. We can work on your electric heat pumps, boilers, gas furnaces, oil furnaces and many more.

Propane Supplier
Deiter Brothers offer delivery services for Propane tanks. We have trucks that are scheduled to do the deliveries at different areas and we plan with our clients to know the dates that are suitable for them. We can also offer next day delivery for emergency propane needs and our delivery rates are very friendly.

Fuel Delivery
We make oil delivery easy and convenient for our customers’ right at your home. Our prices are very affordable because we offer discounts to our customers and you can order online, available 24 hours daily.

Water Conditioning
Our location here offers fresh water for your home. We will provide a detailed analysis through state laboratories to check your water and ensure that it’s safe for use. We test water quality, PH level, minerals, metals and EPA compliance status. We always get the job done right.

Fireplace Installation
Our location here offers installations of fireplace insert installations, gas fireplace installations, and propane fireplace installations. We will provide a safety analysis to check your ventilation and draft to ensure that it’s safe for installations.

Duct Cleaning Services

Our experts have been doing this work for over ten years and love their job. Our clients have given us great 5 star reviews from the quality services that we have given them.
Our cleaning ductwork contractors who are experienced and highly rated in this city to handle all your Air conditioning, heating, geothermal, propane, and oil duct cleaning services.

Back Up Home Generators Installation
Generator installations, we are highly rated, licensed, insured and skilled professional in handling standby generator installations. We are well known for providing safe and reliable commercial and residential installation generator services.

Location: Allentown

Allentown, PA

Is one of the fastest growing cities in the United States, and it is also one of our favorite places to serve our customers. Located on the Lehigh River, Allentown was one of only six communities in the country to be cited as a national success story in April of 2016. The Urban Land Institute presented this honor on Allentown for the redevelopment and transformation of its downtown location.

One of Allentown’s claim to fame is the fact that they hid the Liberty Bell from the British during the American Revolutionary War. The Pennsylvania Supreme Executive Council assigned two local residents to hide the Liberty Bell in the Old Zion Reformed Church that is now center city Allentown.

In 1861 Allentown answered President Lincoln’s call for volunteer troops to defend the nation’s capital. They sent a unit called the Allen Guards to protect and guard the capital for three months. The Allen Guards helped to prevent the city from being captured by Confederate soldiers and they came to be known as the Pennsylvania First Defenders.

Lehigh Valley and Allentown have a unique history due to the barter exchange that was used when they were originally purchased by William Penn’s sons John, Thomas and Richard. The Penn brother’s made the agreement to barter the land from 23 Native American Chiefs with an offer of clothing, weapons and other miscellaneous items.

Local Related Links:

City Website

Allentown City Hall

Allentown Engineering

Allentown Fire Department

Allentown Police Department


Our Allentown location is for employees only and not open to the public.

We welcome you to our Bethlehem location for bill paying, see our showroom or meeting our staff.

Deiter Bros. Heating Cooling Energy of Allentown

522 Harrison St, Allentown PA 18103

(610) 770-6019

Service Area:

Area Served:

Deiter Bros. Heating Cooling Energy
522 Harrison St
Allentown, PA 18103
(610) 770-6019


Emmaus, PA 18049, 18098, 18099

Alburtis, PA 18011

Macungie, PA 18062

Fullerton, PA 18052

Fogelsville, PA 18051

Whitehall, PA 18052

Schnecksville, PA 18078

Breinigsville, PA 18031

Wescoesville, PA 18106

Zionsville, PA 18092

Limeport, PA 18060, 18036

Ironton, PA 18037

Trexlertown, PA 18087

Alburtis, PA 18011

Zionsville, PA 18092

Lehighton, PA 18235

Schnecksville, PA 18078

Slatedale, PA 18079

Pennsburg, PA 18073

Trexlertown, PA 18087

Walnutport, PA 18088

Treichlers, PA 18086

Slatington, PA 18080

Laurys Station, PA 18059

Hereford, PA 18056

Albrightsville, PA 18210

Fogelsville, PA 18051

Whitehall, PA 18052

Germansville, PA 18053

Orefield, PA 18069

Kutztown, PA 19530

Allentown, PA 18101

Allentown, PA 18102

Allentown, PA 18103

Allentown, PA 18104

Allentown, PA 18106

Allentown, PA 18109

Breinigsville, PA 18031

Emmaus, PA 18049

Neffs, PA 18065

Limeport, PA 18060

New Tripoli, PA 18066

Old Zionsville, PA 18068

Coopersburg, PA 18036

Coplay, PA 18037

Quakertown, PA 18951

Macungie, PA 18062

The Area's Weather

The Local Climate:


Allentown, Pennsylvania
Summers in Eastern Pennsylvania are hot and very humid, with temperatures in the mid-80s and low-90s. The average high temperature peaks at 84 °F (29 °C), but highs can often surpass that, with the all-time record high standing at 105 °F (41 °C). Humidity is often around 80 percent, which is a drastic change for someone living in the Southwest United States. Rain is common, and is often accompanied by strong or severe thunderstorms. These will cause quite a large amount of rain, but they do not last long at all. Air conditioning is popular among most households in the summer months, because high temperatures and high humidity can make the air feel much warmer than the actual temperature.


Autumn is fairly mild, with daytime temperatures in the 70s and 60s. Autumn brings more wind, and sometimes heavier rainfall. Trees begin to lose their leaves before the cold winter season. Indian summer may occur.


Winters are cool to cold, with January’s high temperature at 35 °F (2 °C). The highest temperature recorded was 76 °F (24 °C) in February, 87 °F (31 °C) in March, and 72 °F (22 °C) in both December and January. Snowfall is common, with amounts varying greatly between seasons. Snow, ice, sleet, and freezing rain can cause road problems and school closures. In February 2007, Interstate Highway 78 was closed just west of the city. Drivers were stranded on the stretch of highway for as much as 24 hours, with overturned tractor trailers blocking the way. Winter sports are popular, such as snowboarding and skiing, and they can be enjoyed in the Pocono Mountains, just north of the Lehigh Valley.


Spring is a season of growth, with new grass growing and flowers blooming. Animals come out of hibernation, and sun fills the city and its surroundings. Temperatures are on the rise, but March and April bring much rain, with light rain that can last for hours on end. That gives way to warm May and June months, and shore weather is in the forecast for many residents.

Date Average
January 19° 35° -16° (1912) 72° (1950) 3.5″ 11.1″
February 21° 39° -12° (1934) 76° (1985) 2.75″ 9.4″
March 29° 49° -5° (1934) 87° (1998) 3.56″ 5.7″
April 38° 60° 12° (1923) 94° (1915) 3.49″ 0.8″
May 48° 71° 29° (1996) 97° (1962) 4.47″ 0″
June 58° 79° 39° (1972) 100° (1966) 3.99″ 0″
July 63° 84° 38° (1938) 105° (1966) 4.27″ 0″
August 61° 82° 41° (1986) 105° (1918) 4.35″ 0″
September 53° 74° 31° (1963) 99° (1980) 4.37″ 0″
October 41° 63° 19° (1921) 93° (1941) 3.33″ 0.1″
November 33° 51° 3° (1938) 81° (1950) 3.7″ 1.4″
December 24° 40° -9° (1917) 72° (2006) 3.39″ 3.8″
Driving Directions to Showroom in Bethlehem

Driving to their main office in Bethlehem to see their showroom, pay a bill, or speak with a representative.

Local Area Roads

Lehigh Valley Area


Allentown Area Hyway Cameras

I-78 & PA 100

I-78 & US 22

US 22 & PA 309

PA 309 & Tilghman St.

US 22 & Cedar Crest Blvd.

US 22 & 15th Street

US 22 & PA 145

US 22 & Fullerton Ave.

US 22 & Airport Rd.

US 22 & Schoenersville

US 22 & PA 512

US 22 & PA 191

US 22 & PA 33

PA 33 & PA 248

PA 100 and PA 222

I-78 and PA 222

I-78 & Cedar Crest Blvd.

I-78 and Lehigh St.

I-78 and PA 309 (South Split)

I-78 & PA 412

I-78 and PA 33

I-78 & Morgan Hill Rd.

US 22 & 4th Street

Deiter Bros Proudly Serves Lehigh Valley PA!

You will find Deiter Bros is well equipped with the knowledge, experience, professional team members and resources to take care of all your heating, cooling and energy needs:

  • You can call us anytime for your HVAC emergency.
  • You can contact us for installation, maintenance, and repair services.
  • You are able to schedule your non-emergency service online.
  • No matter what type of system you have we will be able to service it since we work with all makes and models.
  • Whether you are a business or residential customer, we can take care of your heating requirements.
  • You will have access to financing resources so you are never left out in the cold when it comes to your home heating system.
  • We offer convenient financing resources to help you with your business or home heating needs.

If you are in need of HVAC, heating, cooling or energy services in New Jersey (NJ), Pennsylvania (PA) or the Lehigh Valley and neighboring areas. Deiter Bros. 522 Harrison St, Allentown PA 18103 Call (610) 770-6019

You may call 1-800-DEITER-1 for your reliable services. 

You may also conveniently schedule your non-emergency service on our website now.

For All Your Heater, Air Conditioner, Water Conditioning, Fireplace Insert, Home back Up Generator, Fuel Delivery and Propane Supplier, Deiter Bros. Is Your Mechanical Contractors in Allentown, PA.

Free Estimate!