Serving Montgomery, Bucks & Philadelphia Counties
HVAC, Electrical, Generator, Boiler & Water Heater Services
Professional repair, replacement and installation in southeastern Pennsylvania.
HVAC, Ductwork, Electrical & More
Heating and cooling installation, replacement, repair and maintenance for furnaces, air conditioners, heat pumps, mini-splits and air handlers.
New ductwork installation, duct replacement, repairs, modifications, supply and return additions, plenums, transitions, sealing and insulation.
Electrical panel and service upgrades, dedicated circuits, rewiring, code corrections, battery backup systems and electrical installations.
Standby generator installation, replacement, maintenance, repair, battery-backup systems and transfer switches.
Boiler installation and replacement, boiler repair, hydronic heating systems and domestic hot-water coils.
Tank, tankless and heat-pump water-heater installation, replacement and service.
Free estimates are available for qualified installations and system replacements. Diagnostic and repair visits may include a service charge.
DMES LLC in the Field
Owner-Operated. Registered. Experienced.
When you call DMES LLC, you work directly with an experienced contractor — not a call center. Jacob brings more than 15 years of hands-on HVAC, electrical and mechanical trade experience to every job.
- Owner-Operated ServiceWork directly with an experienced contractor — not a call center.
- Registered & InsuredPA Home Improvement Contractor Registration No. PA129942 and fully insured.
- 15+ Years of ExperienceMore than 15 years of hands-on HVAC, electrical and mechanical trade experience.
- Clear, Upfront PricingThe scope and price are explained before approved work begins.
- Emergency Availability24/7 emergency calls are answered at (610) 507-1617.
- We Stand Behind Our WorkCustomer concerns are handled professionally and promptly.
What Our Customers Are Saying
"We had multiple HVAC related issues with our basement renovation and Jacob was able to work within our tight timeline to get it all done. We also discovered some exterior electrical issues that needed to be fixed while they were dealing with our HVAC. How convenient that Jacob is qualified in both areas! His pricing was fair and communication was excellent. I highly recommend DMES for your HVAC and electrical needs. Jacob is a pleasure to work with!"
"DMES installed a new energy efficient HVAC system at my house a few winters ago. The freezing cold of winter is a horrible time to have your HVAC system die. They responded quickly to my emergency, installed a more energy efficient system than what I had, and were so professional. They continue to impress me in how quickly they respond each time I need routine service. I have them on speed dial for all mechanical and electrical projects at my house and I highly recommend them to my neighbors and friends."
"My 38-year-old boiler died last Wednesday night. I called Jake and he came right over. He installed a new Weil Mclain ECO Tec 199C tankless boiler and hot water heater the very next day. I cannot believe how quiet it is. Jake did a great job — his craftsmanship is impeccable. Jake has also done 2 AC units and a hot water heater for me over the years. I've highly recommended him to family and friends and will continue doing so."
Reviews sourced from Google. We do not alter or fabricate customer feedback.
Proudly Serving Montgomery, Bucks & Philadelphia Counties
DMES LLC provides residential and light-commercial HVAC, electrical, generator, boiler and water-heater services throughout Montgomery County, Bucks County and Philadelphia County.
Need Service or Planning a Replacement?
For emergency service, call us now. For installations, replacements or planned projects, request an estimate.