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Donmar Heating, Cooling & PlumbingHVAC contractor in Rockville, MD

Donmar Heating, Cooling & Plumbing is an HVAC contractor at 1106 Taft St, Rockville, MD 20850, ranked #41 of 1,065 HVAC contractors in Rockville and rated 4.9 from 115 Google reviews. Open 7 days a week.

Rockville, MDUpdated 0 paid placements in any rankingHow we rank

Call (301) 250-1899Website ↗

Key facts

Key facts about Donmar Heating, Cooling & Plumbing
Address1106 Taft St, Rockville, MD 20850Get directions
Phone(301) 250-1899
Websitedonmarcompany.com
HoursMonday to Saturday: 7 AM – 10 PM; Sunday: 7 AM – 5 PM
Google rating4.9 from 115 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category
  • Plumbingbusiness name

Service area

Serves Rockville and 11 towns within 25 miles: Aspen Hill, Rossmoor, North Bethesda, Redland, Leisure World, Layhill, Gaithersburg, Glenmont, Olney, North Kensington and Wheaton.

Based in Rockville, MDView on map

Opening hours

Opening hours for Donmar Heating, Cooling & Plumbing
DayHours
Monday7 AM – 10 PMevening
Tuesday7 AM – 10 PMevening
Wednesday7 AM – 10 PMevening
Thursday7 AM – 10 PMevening
Friday7 AM – 10 PMevening
Saturday7 AM – 10 PMevening
Sunday7 AM – 5 PM
  • Open evenings (after 6 PM)
  • Open Saturdays
  • Open Sundays

Typical heating and cooling prices

Typical heating and cooling prices
JobLowTypicalHigh
AC replacementPer system, installed (unit plus labor); typical range of customer-reported jobs. US national range$3,887$5,978$8,073
Furnace replacementPer system, installed; typical range of customer-reported jobs. US national range$2,823$4,814$6,896

Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.

Compare nearby HVAC contractors

Donmar Heating, Cooling & Plumbing compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Donmar Heating, Cooling & Plumbing (this business)—604.9 (115)—YesYes
P&Y Heating and Cooling#39605.0 (85)—YesYes5.4 mi
Heil Plumbing & HVAC#40605.0 (959)—NoNo0.0 mi
Mega Services Inc.#42605.0 (130)—YesYes3.1 mi

See all 1065 ranked HVAC contractors in Rockville

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

4.9from 115 Google reviews

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Questions about Donmar Heating, Cooling & Plumbing

How is Donmar Heating, Cooling & Plumbing ranked in Rockville?

Donmar Heating, Cooling & Plumbing is ranked #41 of 1,065 HVAC contractors in Rockville by CR Score, with 60 out of 100 as of October 2026. The score weighs reputation, credentials, review volume, recency, availability, trade focus, proximity, claimed profile, partnered and ContractorsRanked reviews. No business can pay to change its rank.

What are Donmar Heating, Cooling & Plumbing’s hours?

Donmar Heating, Cooling & Plumbing is open 7 days a week. Its listed hours are Monday to Saturday, 7 AM – 10 PM; Sunday, 7 AM – 5 PM. On Saturdays it is open 7 AM to 10 PM, and on Sundays 7 AM to 5 PM. Hours come from the business listing; holiday hours may differ.

What areas does Donmar Heating, Cooling & Plumbing serve?

Serves Rockville and 11 towns within 25 miles: Aspen Hill, Rossmoor, North Bethesda, Redland, Leisure World, Layhill, Gaithersburg, Glenmont, Olney, North Kensington and Wheaton. The list is based on the business's location and the usual service radius for heating and cooling. Confirm your address is covered when you call.

What do Google reviews say about Donmar Heating, Cooling & Plumbing?

Donmar Heating, Cooling & Plumbing has a rating of 4.9 from 115 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

How do I contact Donmar Heating, Cooling & Plumbing?

Call Donmar Heating, Cooling & Plumbing on (301) 250-1899. The business is at 1106 Taft St, Rockville, MD 20850. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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