DiFilippo's Service Company is a family owned and operated company serving Delaware, Montgomery and Chester Counties for over 40 years. "This company is built on the principles of ethical work, industry experts and cutting edge technology", says President Vince DiFilippo.

Our experienced office staff is always here to take your call. When you call during business hours your get a live person. No long on hold times or voice mail prompts. Our staff is here to listen and find solutions to your questions or issues. Our state of the the art system provides scheduled appoinments for equipment tune ups. We understand that waiting around all day is no longer convenient in today's busy world.

Our technicians go through rigorous on-going training and education. We are NATE certified along with Home Performance Practices, including Air Balance Diagnostics and Carbon Monoxide/Combustion Testing and Remediation. Each technician is equipped with state of the art tools and equipment and arrives at your home in a fully marked, fully stocked company vehicle.

Contact Details

  City Paoli, PA
  Zip Code 19301
  Address 13 Railroad Avenue
  Phone Number (610) 240-4789

Products & Services

Professional Grade: Low Level CO Monitor

Professional Grade: Low Level CO Monitor

You can't see or smell carbon monoxide, but at high levels it can kill a person in minutes. The NSI low level monitor senses CO levels as low as 5ppm (part per million) . Infants, childern, elderly, persons with respiratory or heart ailments are provided little or no protection from deadly CO with standard alarms. Long-term exposure to low-level CO above 15ppm can cause illness and even permanent disabilities.

The NSI 3000 lets you know there's a problem before reaching dangerous, even deadly CO levels, long before the other detectors even being to work.

Air Conditioning

Air Conditioning

Central Air
High efficiency cooling to keep your entire home comfortable during the summer months
Expert installation and service by DiFilippo's Service Company's experienced, NATE-certified technicians
Many Energy Star-certified choices from TRANE

Ductless Zones Air Conditioning
Cool only the area you want to be comfortable during the summer and save money
Perfect for new additions, finished basements, sunrooms, bedrooms and other rooms
Remarkably quiet and extremely energy efficient
Fast, easy installation with handy remote control

Zoned Air Conditioning
Help balance heating and cooling in two-level homes, eliminating too-hot or too-cold bedrooms
Even out temperature differences in various areas of your home with the Arzel Zoning System
Achieve greater comfort and save money through smarter energy use and only heating specific rooms you use
Provides separate "controllability" for heating and air conditioning area-by-area in your home
Easy to add to any existing system

  • I would recommend this business

We had an air conditioner and heater installed. The installers were top notch, professional and friendly. They made sure we understood how to operate new installations. And they came back right away when we needed help understanding the new thermostat. We look forward to their next service visit....and we never say that about anyone.

Value for money
Service & support
Overall ratingExcellent

Customer Testimonials

DeFillipos found a serious problem with our furnace, then flawlessly handled the replacement of the entire HVAC system. Their pricing was good, their workmen were very conscientious and did the job on time and on budget. I highly recommend them to anyone looking for top quality service.

We have used DiFilippo's for over 25 years. Always great service and dependable. Highly recommend them

Very reliable service. We started using Difilippo when our air conditioner broke on a hot summer Saturday. I called that evening (we were not then customers) & a DeFilippo service tech called & made an appointment for Sunday 8 AM. He arrived promptly & got our sick old system working until it could be replaced.

I highly recommend Difilippo's Heating & Air Conditioning. We were new to the area and called them when our air conditioning stopped working. We ended up needing a new unit, and they worked some heroics to get a new unit installed for us within a week. They were very professional and presented us with a detailed proposal. The options were clearly explained and the prices were reasonable. The installation crew as very courteous thorough. End-to-end Difilippo's did a quality job for us! Thanks everyone!

Have been using DiFilippo's service for 10+ years. Always handle our systems with TLC. Would recommend them to anyone who needs a reliable service company.

DiFilippo's Service Company has surpassed my expectations. When I called in to the office, the customer service person was friendly and helpful. I scheduled my appoint easily. The service tech arrived on time, was clean, neat and VERY polite. Great experience. HIGHLY RECOMMEND!

My property is managed remotely from overseas and the service is always reliable and proved to be the best in the area.

My family has used DiFilippo's for at least 30 years and they never disappoint. Their service techs always show up on time for my maintenance appointments. They respond immediately when I have an issue. And when I need something replaced, Vince always comes out promptly and provides a detailed explanation of my options. The installers are always courteous, on time, and there's never an issue with their work. I've recommended them to friends and neighbors who also sing their praises. Hope to keep using you all for another 30 years!

Photo Book

Social Activity

Are you alert to potential home heating problems? This blog tells more. http://t.co/wRMyHilq
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Cost of repairs and energy bills, plus lack of comfort, adds up to a big decision. http://t.co/aN21VoYA
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How does your furnace sound to you? This report explains why a trained ear should give it a listen. http://t.co/zgN2RlO6
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A/C maintenance is very important! Remember to vacuum to clear the drain.
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Is how to save energy getting lost in translation? Find out at this blog. http://t.co/kXkfCt5W
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If your home making your spring allergies worse? For better breathing, check out this free report. http://t.co/M4i9YuQe
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This article explains why routine maintenance so important to your air conditioning system. http://t.co/OI7IUhrw
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Saving a little energy here, a little energy there adds up. Our blog tells more. http://t.co/WT5o6GJO
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From Our Website

We've learned that our clients want reliability, honesty and integrity. We deliver on the promises we make and pledge to our clients that when you invest in a relationship with us you'll enjoy a stress free and pleasant experience. Our mission has always been to take the best care of our clients by providing the highest quality products matched with the most reliable service. From our NATE and Home Performance Certified Technicians to our state of the art scheduling system, everything we do at DiFilippo's Service is done to deliver excellence to you.

Regular maintenance (recommended by all HVAC manufacturers) keeps your system running at its maximum efficiency to keep you comfortable all year long. It is also an opportunity to inspect your system and how it is functioning. Many times a small issue can be found before it affects unit performance. Finding these problems early can assure your repairs are done in a timely manner. Only Maintenance Plan customers are guaranteed same day emergency service. For your convenience there is a technician on call 24/7 who will return your call you within an hour.