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  1. Home
  2. Rockville, MD
  3. Donmar Heating, Cooling & Plumbing

Donmar Heating, Cooling & Plumbing

Donmar Heating, Cooling & Plumbing is a HVAC provider serving Rockville, MD. Rated 4.9★ with 115 Google reviews. See services, review signals, and request a quote.

4.9★ (115 reviews)HVACRockville, MD
On this page▾
  1. 1.Company overview
  2. 2.Photos
  3. 3.What customers say
  4. 4.Key highlights
  5. 5.Explore nearby research
  6. 6.Frequently asked questions

Company overview

  • TradeHVAC
  • Service areaRockville, MD
  • Google rating4.9★ (115 reviews)
  • Phone(301) 250-1899
  • Address1106 Taft St, Rockville, MD 20850, USA

Photos

  • Donmar Heating, Cooling & Plumbing photo 1
  • Donmar Heating, Cooling & Plumbing photo 2
  • Donmar Heating, Cooling & Plumbing photo 3
  • Donmar Heating, Cooling & Plumbing photo 4
  • Donmar Heating, Cooling & Plumbing photo 5

Photos from Donmar Heating, Cooling & Plumbing

What customers say

★★★★★

“We have positive working relationship with Donmar heating and cooling . They were punctual and detail oriented professionals, answered all questions timely and installed the system within 4 days from…”

— Niran, 2 years ago
★★★★★

“Donmar is a great company and the tech Chris was fantastic. They have your best interest at heart and are looking for ways to save you money instead of trying to upsell on a brand new system. I recomm…”

— Larry R, 2 years ago
★★☆☆☆

“Kien performed the maintenance in under 30 minutes. Gave me recommendations but didn’t push for extra services. He gave me honest feedback and answered all my questions as a new home owner. Very happy…”

— Eric Peich, 2 years ago
★★★★★

“Donmar was wonderful. The receptionist on the phone was professional and thorough. Javier came out quickly to fix my A/C. Apparently I shorted it out replacing the thermostat myself (not my fault thou…”

— Samuel Neff, 3 years ago
★★★★★

“This morning, Gordon and Gus replaced our 20-year-old failed water heater in our crawl space. They communicated with me during the installation, answering all of my questions. They are true profession…”

— Lisa Barry, 3 years ago

Key highlights

Strengths

  • Highly rated (4.9★ average)
  • Large review volume (115 reviews)

Things to ask

  • Confirm availability for your area and timeline
  • Ask about warranty terms on parts and labor
  • Request a written estimate before work begins
  • Ask about payment plans or financing

Explore nearby research

  • Rockville, MD HVAC pros
  • Best HVAC in Rockville
  • HVAC cost in Rockville
  • Best HVAC in Baltimore, MD
  • Best HVAC in Columbia, MD
  • Best HVAC in Germantown, MD
  • Best HVAC in Silver Spring, MD

Frequently Asked Questions

  • What services does Donmar Heating, Cooling & Plumbing offer?

    Donmar Heating, Cooling & Plumbing provides: HVAC diagnosis, repairs, and full system installs. They serve residential and commercial customers in Rockville, MD.

  • What is Donmar Heating, Cooling & Plumbing's rating?

    Donmar Heating, Cooling & Plumbing has a 4.9 out of 5 star rating based on 115 Google reviews.

  • Is this company licensed in Maryland?

    All listed providers have a verified Maryland contractor license at time of publication. You can verify on the Maryland Department of Labor — Board of Heating, Ventilation, Air-Conditioning, and Refrigeration Contractors (HVACR Board) lookup at https://www.dllr.state.md.us/cgi-bin/ElectronicLicensing/OP_Search/OP_search.cgi?calling_app=HVAC.

  • Does Donmar Heating, Cooling & Plumbing offer emergency service?

    Contact them directly to ask about emergency availability and after-hours service.

  • How do I request a quote?

    Use the CTA below to submit your ZIP. You can message this company alongside two or three other local pros for easy comparison.

✓ Licensing verified 2026-04-23. Reviews refreshed 2026-04-23.

Licensing data: Maryland Department of Labor — Board of Heating, Ventilation, Air-Conditioning, and Refrigeration Contractors (HVACR Board) · Company data: verified business records + Google Business profile

See our editorial standards · Report inaccurate info about Donmar Heating, Cooling & Plumbing

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