What are the opening hours?

Monday 7am - 6pm Tuesday 7am - 6pm Wednesday 7am - 6pm Thursday 7am - 6pm Friday 7am - 6pm Saturday 9am - 5pm

DMES LLC

DMES LLC (Diversified Mechanical and Electrical Systems) offers HVAC and electrical services in Montgomery, Bucks, and Philadelphia counties in PA.

05/26/2026

Another Bosch system installation completed by DMES LLC.

From old equipment to high-efficiency comfort — this customer is now ready for the summer heat and winter cold with a reliable new Bosch setup installed the right way.

✔️ Heating
✔️ Cooling
✔️ Electrical
✔️ Clean, professional workmanship

📞 Call DMES LLC today for your heating, cooling & electrical needs.
610-507-1617

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05/12/2026

Heat Pump Replacement Complete❄️🔥

Out with the old in with the new. New Carrier Heat Pump & Air Handler installed for returning customer/ local church.

A few before and after shots from the project. Summer temperatures are right around the corner — now is the time to replace aging or unreliable equipment before the heat arrives.

Call DMES LLC for system replacements, service, and installations.

📞 610-507-1617

05/03/2026

Combi boiler maintenance done right ✅

Full service on this unit — cleaned the heat exchanger, flushed out buildup, checked combustion, and made sure everything is running safe and efficient. Caught early buildup that would’ve turned into a bigger issue down the line.

This is why annual maintenance matters. Keeps your system running strong, prevents breakdowns, and saves you money over time.

If your boiler hasn’t been serviced in a while, now’s the time.

📞 610-507-1617
DMES LLC – Heating • Cooling • Electrical • Generators