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One HourHVAC contractor in Ashburn, VA

One Hour is an HVAC contractor at 21730 Red Rum Dr Suite 182, Ashburn, VA 20147, ranked #31 of 758 HVAC contractors in Ashburn and rated 4.6 from 536 Google reviews. Open 7 days a week.

Ashburn, VAUpdated 0 paid placements in any rankingHow we rank

Call (571) 380-7548Website ↗

Key facts

Key facts about One Hour
Address21730 Red Rum Dr Suite 182, Ashburn, VA 20147Get directions
Phone(571) 380-7548
Websiteonehourheatandair.com
HoursOpen 7 days a week
Google rating4.6 from 536 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

Serves Ashburn and 11 towns within 25 miles: Broadlands, Sterling, Countryside, Belmont, Brambleton, Sugarland Run, Herndon, Floris, South Riding, Dranesville and Lowes Island.

Based in Ashburn, VAView on map

Opening hours

Opening hours for One Hour
DayHours
Monday8 AM – 6 PM
Tuesday8 AM – 6 PM
Wednesday8 AM – 5 PM
Thursday8 AM – 6 PM
Friday8 AM – 6 PM
Saturday8 AM – 4 PM
Sunday9 AM – 1 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

One Hour compared with nearby businesses
BusinessRankCR ScoreGoogle ratingLicense verifiedSaturdaySundayDistance away
One Hour (this business)—604.6 (536)—YesYes
Presidential, Inc.#29604.9 (1,701)—YesYes19.9 mi
R A Dobson Inc#30604.8 (164)—YesYes2.9 mi
Falcon Heating Air Conditioning and Plumbing#32604.9 (1,853)—YesNo5.0 mi

See all 758 ranked HVAC contractors in Ashburn

Reviews

ContractorsRanked reviews

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Google

4.6from 536 Google reviews

Hired One Hour? Write a review

Questions about One Hour

How is One Hour ranked in Ashburn?

One Hour is ranked #31 of 758 HVAC contractors in Ashburn 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 One Hour’s hours?

One Hour is open 7 days a week. Its listed hours are Open 7 days a week. On Saturdays it is open 8 AM to 4 PM, and on Sundays 9 AM to 1 PM. Hours come from the business listing; holiday hours may differ.

What areas does One Hour serve?

Serves Ashburn and 11 towns within 25 miles: Broadlands, Sterling, Countryside, Belmont, Brambleton, Sugarland Run, Herndon, Floris, South Riding, Dranesville and Lowes Island. 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 One Hour?

One Hour has a rating of 4.6 from 536 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 One Hour?

Call One Hour on (571) 380-7548. The business is at 21730 Red Rum Dr Suite 182, Ashburn, VA 20147. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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