Skip to content
ContractorsRanked

Mannix Heating and Cooling- GaithersburgHVAC contractor in Gaithersburg, MD

Mannix Heating and Cooling- Gaithersburg is an HVAC contractor at 7824 Beechcraft Ave, Gaithersburg, MD 20879, ranked #29 of 975 HVAC contractors in Gaithersburg and rated 4.9 from 154 Google reviews. Open 7 days a week.

Gaithersburg, MDUpdated 0 paid placements in any rankingHow we rank

Call (301) 260-6000Website ↗

Key facts

Key facts about Mannix Heating and Cooling- Gaithersburg
Address7824 Beechcraft Ave, Gaithersburg, MD 20879Get directions
Phone(301) 260-6000
Websitemannixhvac.com
HoursMonday to Friday: 8 AM – 6 PM; Saturday: 9 AM – 1 PM; Sunday: 8 AM – 6 PM
Google rating4.9 from 154 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category
  • Electricaladditional Google category

Service area

Serves Gaithersburg and 11 towns within 25 miles: Redland, Montgomery Village, Olney, Rockville, Germantown, Rossmoor, Leisure World, Aspen Hill, North Potomac, Layhill and Darnestown.

Based in Gaithersburg, MDView on map

Opening hours

Opening hours for Mannix Heating and Cooling- Gaithersburg
DayHours
Monday8 AM – 6 PM
Tuesday8 AM – 6 PM
Wednesday8 AM – 6 PM
Thursday8 AM – 6 PM
Friday8 AM – 6 PM
Saturday9 AM – 1 PM
Sunday8 AM – 6 PM
  • Open evenings — no
  • 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

Mannix Heating and Cooling- Gaithersburg compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
Mannix Heating and Cooling- Gaithersburg (this business)—604.9 (154)—YesYes
Meade's Heating and Air#27605.0 (710)—YesYes19.4 mi
Simply Home Service#28605.0 (184)—YesYes3.8 mi
Cardinal Plumbing Heating & Air Inc#30604.9 (745)—YesYes18.3 mi

See all 975 ranked HVAC contractors in Gaithersburg

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

4.9from 154 Google reviews

Hired Mannix Heating and Cooling- Gaithersburg? Write a review

Questions about Mannix Heating and Cooling- Gaithersburg

How is Mannix Heating and Cooling- Gaithersburg ranked in Gaithersburg?

Mannix Heating and Cooling- Gaithersburg is ranked #29 of 975 HVAC contractors in Gaithersburg 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 Mannix Heating and Cooling- Gaithersburg’s hours?

Mannix Heating and Cooling- Gaithersburg is open 7 days a week. Its listed hours are Monday to Friday, 8 AM – 6 PM; Saturday, 9 AM – 1 PM; Sunday, 8 AM – 6 PM. On Saturdays it is open 9 AM to 1 PM, and on Sundays 8 AM to 6 PM. Hours come from the business listing; holiday hours may differ.

What areas does Mannix Heating and Cooling- Gaithersburg serve?

Serves Gaithersburg and 11 towns within 25 miles: Redland, Montgomery Village, Olney, Rockville, Germantown, Rossmoor, Leisure World, Aspen Hill, North Potomac, Layhill and Darnestown. 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 Mannix Heating and Cooling- Gaithersburg?

Mannix Heating and Cooling- Gaithersburg has a rating of 4.9 from 154 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 Mannix Heating and Cooling- Gaithersburg?

Call Mannix Heating and Cooling- Gaithersburg on (301) 260-6000. The business is at 7824 Beechcraft Ave, Gaithersburg, MD 20879. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

Own Mannix Heating and Cooling- Gaithersburg? Claim this profile.

Claiming is free. Correct your hours, trades and service area. The CR Score is recalculated from corrected data; payment never changes it.

Claim this profile