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ContractorsRanked

Best HVAC Contractors in Annandale, VA (2026)

1,130 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →

The short answer

  1. 1

    Best overall in Annandale: Michael & Son Services, CR Score 94/100; 4.7★ from 15,537 Google reviews; open 24/7.

  2. 2

    Best for emergencies (open 24/7): CroppMetcalfe, posts 24/7 hours; ranked #2 of 1,130.

  3. 10

    Most-reviewed: F.H. Furr Plumbing, Heating, Air Conditioning & Electrical, 17,172 Google reviews at 4.8★, the most of 1,130 ranked; ranked #10.

Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank

1,130 Annandale HVAC contractors are ranked here by CR Score, from 8 published factors. 363 are open 24/7, 782 open Saturdays and 531 open Sundays, based on posted hours. The median Google rating is 4.9★ across 1,130 rated businesses.

Top 10 HVAC contractors in Annandale at a glance

Top 10 HVAC contractors in Annandale at a glance
RankBusinessCR ScoreGoogle ratingBased inHoursBest for
1Michael & Son Services944.7★ (15,537)Alexandria, 3 mi away24/7Overall
2CroppMetcalfe934.8★ (7,638)Fairfax, 4 mi away24/7Emergencies
3John C. Flood934.8★ (4,976)Alexandria, 3 mi away24/7—
4AZA heating, cooling, plumbing & construction925.0★ (959)Alexandria, 3 mi away24/7—
5OHA HVAC, Plumbing, Chimney & Fireplaces924.9★ (1,794)Fairfax, 4 mi away24/7—
6Krafft Service Corporation924.9★ (1,631)Alexandria, 4 mi away24/7—
7C.D. Shanahan's HVAC, Plumbing, Electrical & Remodeling LLC924.9★ (966)Springfield, 2 mi away24/7—
8F.H. Furr Plumbing, Heating, Air Conditioning & Electrical914.7★ (4,469)Lorton, 7 mi away24/7—
9United Air Temp914.8★ (1,318)Alexandria, 4 mi away24/7—
10F.H. Furr Plumbing, Heating, Air Conditioning & Electrical904.8★ (17,172)Manassas, 19 mi away24/7Most reviews

The 1,130 best HVAC contractors in Annandale, ranked

Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.

Scores below: based on 6 of 8 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.

  2. #2 CroppMetcalfe

    Based in Fairfax, 4 mi away

    93/100CR Score

    Ranked #2 because of its Google rating and availability: 4.8★ from 7,638 Google reviews, open 24/7.

    • 4.8★ from 7,638 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    8421 Hilltop Rd, Fairfax, VA 22031
    View profile for CroppMetcalfe(703) 420-5030

  3. #3 John C. Flood

    Based in Alexandria, 3 mi away

    93/100CR Score

    Ranked #3 because of its Google rating and availability: 4.8★ from 4,976 Google reviews, open 24/7.

    • 4.8★ from 4,976 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    6430 General Green Way, Alexandria, VA 22312
    View profile for John C. Flood(571) 605-7008

  9. #9 United Air Temp

    Based in Alexandria, 4 mi away

    91/100CR Score

    Ranked #9 because of its Google rating and availability: 4.8★ from 1,318 Google reviews, open 24/7.

    • 4.8★ from 1,318 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    6094 Franconia Rd # B, Alexandria, VA 22310
    View profile for United Air Temp(703) 762-2488

  12. #12 United Air Temp

    Based in Springfield, 2 mi away

    90/100CR Score

    Ranked #12 because of its Google rating and availability: 4.9★ from 313 Google reviews, open 24/7.

    • 4.9★ from 313 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    5537 Hempstead Way suite a, Springfield, VA 22151
    View profile for United Air Temp(571) 336-8646

  17. #17 GAC Services

    Based in Gaithersburg, 21 mi away

    90/100CR Score

    Ranked #17 because of its Google rating and availability: 4.9★ from 6,908 Google reviews, open 24/7.

    • 4.9★ from 6,908 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    227 E Deer Park Dr, Gaithersburg, MD 20877
    View profile for GAC Services(301) 202-1641

  21. #21 Caffi Services

    Based in Alexandria, 8 mi away

    89/100CR Score

    Ranked #21 because of its Google rating and availability: 4.9★ from 508 Google reviews, open 24/7.

    • 4.9★ from 508 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    1313 Powhatan St, Alexandria, VA 22314
    View profile for Caffi Services(703) 962-6052

  23. #23 M.E. Flow

    Based in Lorton, 8 mi away

    89/100CR Score

    Ranked #23 because of its Google rating and availability: 4.8★ from 866 Google reviews, open 24/7.

    • 4.8★ from 866 Google reviews
    • Open 24/7
    Hours
    Open 24 hours, 7 days
    Address
    7200 Telegraph Square Dr, Lorton, VA 22079
    View profile for M.E. Flow(571) 470-7235

HVAC contractors ranked #26 to #50

#1 to #25 are shown in full above. Here are #26 to #50, in CR Score order; each links to its profile. We publish the top 50 of 1,130 ranked HVAC contractors here; the rest are on their profiles.

HVAC contractors in Annandale, ranks 26 to 50
RankBusinessCR ScoreGoogle ratingDistance
26Meade's Heating and Air895.0★ (1,428)18 mi
27ACCURATE894.9★ (208)4 mi
28M.E. Flow894.7★ (1,169)7 mi
29United Air Temp894.8★ (1,775)13 mi
30Michael Bonsby HVAC, Plumbing and Electrical894.8★ (2,138)14 mi
31Sila Heating, Air Conditioning & Plumbing894.8★ (295)5 mi
32Cardinal Plumbing Heating & Air Inc894.9★ (745)13 mi
33Argent Heating Cooling and Plumbing884.7★ (392)4 mi
34Michael & Son Services884.9★ (1,501)17 mi
35United Air Temp884.7★ (1,754)11 mi
36Len The Plumber Heating & Air, LLC884.6★ (8,136)16 mi
37McCarthy Services884.8★ (335)7 mi
38F.H. Furr Plumbing, Heating, Air Conditioning & Electrical884.7★ (5,985)19 mi
39United Air Temp884.4★ (4,301)6 mi
40United Air Temp884.8★ (2,161)17 mi
41Len the Plumber Heating & Air, LLC884.7★ (6,899)5 mi
42Zone Control885.0★ (104)6 mi
43Ava Air Heating and Cooling885.0★ (263)In Annandale
44AVS Heating and Air Conditioning884.8★ (149)4 mi
45McCarthy Services884.4★ (3,547)6 mi
46Michael & Son Services884.8★ (993)14 mi
47Comfort Solutions884.8★ (298)8 mi
48John Nugent & Sons884.8★ (1,701)18 mi
49Air Treatment Heating & Cooling885.0★ (657)7 mi
50HVAC DONE EZ LLC875.0★ (272)15 mi

Also serving Annandale

20 more HVAC contractors within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.

Unranked HVAC contractors serving Annandale
BusinessGoogle ratingDistance
Air Max HVACR5.0★ (2)3 mi
AJ Heating and AC, Inc.5.0★ (2)3 mi
Alta Vista Heating & Air Conditioning3.0★ (2)In Annandale
Ameritec ServicesIn Annandale
Apu Electric LLC5.0★ (44)In Annandale
ARS / Rescue Rooter4.5★ (5,934)15 mi
AVS Heating and Air Conditioning Falls Church ( AC, Furnace and Appliance Repair)4.8★ (88)4 mi
Brad Knows HVAC5.0★ (2)3 mi
Cyprus Air Heating, Cooling and Fireplaces4.3★ (2,189)8 mi
Elite Contractors Services Inc5.0★ (78)In Annandale
HVAC AlexandriaIn Annandale
J.A.Z. Construction LLCIn Annandale
James Ozie's Heating & AC5.0★ (2)3 mi
Power, LLC5.0★ (2)3 mi
Precision Air Inc5.0★ (2)4 mi
REYCO LLC5.0★ (2)3 mi
Sears Window Replacement2.5★ (2)3 mi
THE ELECTRICIANS3.0★ (2)3 mi
UNIAIRE(Chantilly)3.0★ (2)2 mi
Willway Plumbing & Gas4.9★ (123)In Annandale

How much do HVAC contractors cost in Annandale?

National price ranges in USD, not adjusted for Annandale. Each row names its basis and the month we checked it.

How much do HVAC contractors cost in Annandale?
JobLowTypicalHighBasisChecked
AC replacement$3,887$5,978$8,073Per system, installed (unit plus labor); typical range of customer-reported jobs. US national rangeOctober 2026
Furnace replacement$2,823$4,814$6,896Per system, installed; typical range of customer-reported jobs. US national rangeOctober 2026

How to check an HVAC contractor's license in Virginia

In Virginia, Virginia Board for Contractors (DPOR) licenses Contractor license with an HVAC specialty; HVAC technicians hold tradesman licenses.

  1. Search the business name or license number on the Virginia Board for Contractors (DPOR) license lookup.
  2. Check that the status is active and the name matches the contract or truck.
  3. Ask for proof of insurance before work starts.

No chip usually means we have not matched a state record yet. Check the lookup yourself before you hire.

Guide checked October 2026. How we verify licenses

When to hire an HVAC contractor in Virginia

HVAC demand peaks in summer for cooling and in winter for heating. Spring and fall are the easiest times to book maintenance or a replacement.

How we ranked Annandale HVAC contractors

We scored 1,130 Annandale HVAC contractors on 8 factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. Unknown factors are left out of the score, not counted as zero. Scores last refreshed October 22, 2026.

Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.

Read the full method: formula, sources and exclusions

CR Score factors and weights
FactorWeightComputed fromIn Annandale data
Reputation35%Bayesian-adjusted Google star ratingMeasured
Credentials15%Active state license 0.6, bond 0.2, workers’ comp 0.2Not yet collected
Review volume10%log10(reviews + 1) against the list maximumMeasured
Recency10%Share of reviews from the last 12 monthsNot yet collected
Availability10%Weekly open hours, Saturday, Sunday, 24/7 or same-dayMeasured
Trade focus10%Google main category 1.0, business name 0.7, additional category 0.5Measured
Proximity5%1.0 when based in the city, falling to 0 at the trade’s radiusMeasured
Completeness5%Website, photos, description, hours, claimed profile (0.2 each)Measured

HVAC contractors in Annandale: frequently asked questions

Who is the best HVAC contractor in Annandale?

By CR Score, the highest-ranked HVAC contractor in Annandale, VA is Michael & Son Services with a CR Score of 94/100. It has 4.7★ from 15,537 Google reviews. It is open 24/7. CroppMetcalfe (#2) and John C. Flood (#3) follow. We ranked 1,130 HVAC contractors on 8 factors, last updated October 22, 2026.

How many HVAC contractors are there in Annandale?

ContractorsRanked ranks 1,130 HVAC contractors serving Annandale, VA. 1 of them is based in Annandale; the rest serve it from nearby towns. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.

Which HVAC contractors in Annandale are open 24/7?

363 ranked HVAC contractors in Annandale post 24/7 hours. The highest-ranked are Michael & Son Services (#1), CroppMetcalfe (#2) and John C. Flood (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.

Which HVAC contractors in Annandale work on weekends?

782 of 1,130 ranked HVAC contractors post Saturday hours and 531 post Sunday hours. The highest-ranked open Saturdays are Michael & Son Services (#1), CroppMetcalfe (#2) and John C. Flood (#3). Posted hours are office hours; crews may book weekend jobs separately.

How do I check an HVAC contractor's license in Virginia?

In Virginia, Virginia Board for Contractors (DPOR) handles licensing and covers Contractor license with an HVAC specialty; HVAC technicians hold tradesman licenses. Search the business or license number at https://www.dpor.virginia.gov/LicenseLookup.

How much does ac replacement cost in Annandale?

AC replacement typically costs $3,887 to $8,073, with $5,978 typical (Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range). This is a national range, not adjusted for Annandale. Prices were last checked October 2026. Get at least two written quotes before you hire.

What Google rating do Annandale HVAC contractors have?

The median Google rating among 1,130 rated HVAC contractors in Annandale is 4.9★, with a median of 24 reviews. F.H. Furr Plumbing, Heating, Air Conditioning & Electrical has the most, 17,172 reviews, and ranks #10. We adjust ratings for review count, so a few five-star reviews cannot top the list.

When is the best time to hire an HVAC contractor in Annandale?

HVAC demand peaks in summer for cooling and in winter for heating. Spring and fall are the easiest times to book maintenance or a replacement.

Update log for Annandale

  1. October 2026: CR Scores recalculated for 1,130 hvac contractors serving Annandale.
  2. October 2026: 11 duplicate listings merged.

More HVAC contractors and Annandale pages

Other trades in Annandale