Business Details
50 Years
experience
Emergency
services
Expert HVAC Services in Malvern, PA
Michall Daimion Heating & Air Conditioning has served the Main Line since 1976, delivering high-quality HVAC services with a commitment to skill and integrity. Founded in a bedroom closet with a landline, the company grew alongside Chester County's housing boom, evolving into a trusted provider of home comfort systems. Our mission centers on helping homeowners achieve peace of mind through reliable heating, air conditioning, and indoor air quality solutions. Guided by core values of Collaboration, Accountability, Respect, and Excellence (C.A.R.E.), we prioritize open communication, expert diagnostics, and long-lasting craftsmanship. Our NATE-certified technicians specialize in system installations, repairs, maintenance, and energy-efficient solutions tailored to individual home needs.We emphasize customer education, empowering clients to make informed decisions about their home environments. With over 40 years of local experience, we combine family-run care with professional expertise to ensure homes remain comfortable year-round. Our services include 24/7 emergency support, seasonal maintenance plans, and priority scheduling for peace-of-mind service. Backed by industry certifications and a dedication to community service, we strive to be the sole HVAC partner homeowners need for comprehensive comfort solutions.
Services
Air Conditioning
Heating Systems
Duct Services
Indoor Air Quality
Water Heaters
Boilers
Maintenance Plans
Details
- Year established: 1976
Highlights and features
- Family-run business serving the Main Line since 1976
- NATE-certified technicians for industry-recognized expertise
- 24/7 emergency service for urgent HVAC needs
- Customized solutions for home comfort and energy efficiency
- Core values of accountability, respect, and craftsmanship
Associations and certifications
- NATE-certified
- NCI-certified
What people say
Great service
Technician and owner arrived quickly
Services
Air Conditioning
We provide comprehensive air conditioning solutions including installation, maintenance, and repair of central and ductless systems. Our NATE-certified technicians ensure optimal cooling performance and energy efficiency. Serving Malvern homeowners with prompt emergency service during peak summer months.
Heating Systems
Specializing in furnace, boiler, and heat pump installations, repairs, and maintenance. Our team ensures reliable winter heating with energy-efficient solutions. We handle oil-to-gas conversions and smart thermostat integration for modern comfort control.
Duct Services
Professional duct cleaning, testing, and sealing services improve system efficiency and indoor air quality. Our NCI-certified technicians identify and repair leaks or inefficiencies in existing ductwork systems for optimal HVAC performance.
Indoor Air Quality
We offer air filtration systems, humidifiers, dehumidifiers, and HRV/ERV solutions to enhance indoor air quality. Our IQAir purifiers and ventilation systems address specific home air quality needs while improving overall comfort.
Water Heaters
Comprehensive water heater services including tank and tankless installations, repairs, and maintenance. Our technicians ensure reliable hot water supply through energy-efficient solutions tailored to household size and usage patterns.
People
Michall Daimion
Founder
Started the company in 1976 from a bedroom closet, growing it into a trusted Main Line HVAC provider while maintaining family-run values and community focus.
Heather Daimion
Manager
Co-leader with Michall, overseeing daily operations and customer service, ensuring the company's core values guide every client interaction and business decision.
Questions
What HVAC services do you offer in Malvern, PA?
We provide air conditioning, heating, duct services, indoor air quality solutions, water heaters, and boiler services for residential customers in Malvern and surrounding areas.
Do you offer emergency HVAC service?
Yes, we provide 24/7 emergency service with technicians available for urgent heating and cooling issues at (610)644-0537.
Are your technicians certified?
Our team includes NATE-certified technicians and NCI-certified professionals for HVAC system testing and performance diagnostics.
What financing options are available?
We offer financing through Wells Fargo and Greensky for HVAC installations and major repairs. Contact Michall Daimion for details.
Which areas do you serve?
We serve the Main Line and Chester County, including Berwyn, Bryn Mawr, Paoli, Villanova, and Newtown Square neighborhoods.
What maintenance plans do you offer?
Our membership includes seasonal maintenance visits, 20% parts discount, free filters, priority emergency scheduling, and no diagnostic fees.
Reviews (5)
Lori Maniscalco
Jun 14, 2022
Report
We had a wonderful experience with this company. I would highly recommend using them. Paul, Dan and Chuck were a very professional team and worked diligently and efficiently to install a new Ac and Heat pump unit in our home. Our attic was very difficult to manage and work with for various reasons but they remained very professional, courteous and tenacious through the entire installation day. They even took the time with us at the end of the day to go over the thermostat and different parts of the unit.
The owner also worked hard to make sure all the details were taken care of prior to that day. She even have us a temporary portable unit during until our one part was available. Don't hesitate to use them, great company.
The owner also worked hard to make sure all the details were taken care of prior to that day. She even have us a temporary portable unit during until our one part was available. Don't hesitate to use them, great company.
Elizabeth Sabel
May 22, 2022
Report
Recently had my air conditioning unit replaced with no complaints. The people that came to install the unit were on time and very friendly. When we came across a small issue they gave me several options and pricing so I could make an informed decision. They also will communicate by text which is very helpful. Services: Installation, Install AC
Efraim Nathan
May 14, 2022
Report
I have been maintaining our H&AC with Tis comp for the past 8 years! Excellent service, dependable professional & always on time! Very knowledgeable. Highly recommend this business Services: A/C system maintenance, HVAC system maintenance
John Dang
May 06, 2022
Report
We switched to Michall Daimion a few years ago to maintain our HVACs and have been very happy with their services over the last few years. Today I had the pleasure of having Dan Glass come to service our systems and I wanted to acknowledge his professionalism, customer service and overall experience. He addressed a couple of concerns I had and gave me potential solutions. What I really appreciated was that he didn't rush through the job and took the time to explain things, didn't try to upsell me, and educated me on what I need to do for the future (both preventative and also replacement).
Jamie Davis
Mar 31, 2022
Report
I just had the most fantastic customer experience EVER from James who came to do routine maintenance on our air-conditioning units. He was extremely professional, timely and proactively offered easy tips and hints on how we help maintain our system between visits. Based on this experience, I would recommend Michall Daimion Heating and Air Conditioning to anyone.
