Welcome to MDT Heating & Air Conditioning

We're your local HVAC experts servicing Chester, Delaware, and Lancaster counties. If you're looking for quality, reliable and trustworthy service without the fluff, you're in the right place! 

Click below to learn more about us and our services

About MDT

Schedule a service

Fill out the form below and we will call (or email) you to schedule service

Want to call us instead? Feel free! 484-798-5192

Request Sent!

Your request has been sent successfully. Someone will be in touch ASAP to schedule your service. You can also contact us through social media, links can be found below!


Sign up to our newsletter and stay up to date


Thank you for subscribing to our newsletter.