748 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Manassas: F.H. Furr Plumbing, Heating, Air Conditioning & Electrical, CR Score 96/100; 4.8★ from 17,172 Google reviews; open 24/7.
Best for emergencies (open 24/7): Reddick & Sons, Inc, posts 24/7 hours; ranked #2 of 748.
Most-reviewed: Michael & Son Services, 15,537 Google reviews at 4.7★, the most of 748 ranked after F.H. Furr Plumbing, Heating, Air Conditioning & Electrical; ranked #15.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
748 Manassas HVAC contractors are ranked here by CR Score, from 8 published factors. 243 are open 24/7, 540 open Saturdays and 367 open Sundays, based on posted hours. The median Google rating is 4.9★ across 748 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | F.H. Furr Plumbing, Heating, Air Conditioning & Electrical | 96 | 4.8★ (17,172) | Manassas | 24/7 | Overall |
| 2 | Reddick & Sons, Inc | 95 | 5.0★ (3,027) | Manassas | 24/7 | Emergencies |
| 3 | Turner's Service Co. Heating & Air Conditioning | 92 | 4.8★ (1,037) | Manassas | 24/7 | — |
| 4 | HVAC DONE EZ LLC | 91 | 5.0★ (272) | Manassas | 24/7 | — |
| 5 | ARS / Rescue Rooter | 91 | 4.5★ (5,934) | Manassas | 24/7 | — |
| 6 | Express Tech Air | 91 | 5.0★ (213) | Manassas | 24/7 | — |
| 7 | Appleton Campbell | 90 | 4.9★ (6,454) | Warrenton, 18 mi away | 24/7 | — |
| 8 | Hudson’s Heating & Air Conditioning | 90 | 5.0★ (161) | Gainesville, 1 mi away | 24/7 | — |
| 9 | CroppMetcalfe | 90 | 4.8★ (7,638) | Fairfax, 15 mi away | 24/7 | — |
| 10 | POPE'S AIR | 90 | 4.9★ (235) | Manassas | 24/7 | — |
Ordered by CR Score, a 0–100 score from 8 published factors. Paid placement never changes the order.
Ranked #1 because of its Google rating and review volume: 4.8★ from 17,172 Google reviews, the most Google reviews on this list (17,172).
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Manassas
Ranked #2 because of its Google rating and availability: 5.0★ from 3,027 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Manassas
Ranked #3 because of its Google rating and availability: 4.8★ from 1,037 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Manassas
Ranked #4 because of its Google rating and availability: 5.0★ from 272 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Manassas
Ranked #5 because of its Google rating and availability: 4.5★ from 5,934 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Manassas
Ranked #6 because of its Google rating and availability: 5.0★ from 213 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Warrenton, 18 mi away
Ranked #7 because of its Google rating and availability: 4.9★ from 6,454 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Gainesville, 1 mi away
Ranked #8 because of its Google rating and availability: 5.0★ from 161 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Fairfax, 15 mi away
Ranked #9 because of its Google rating and availability: 4.8★ from 7,638 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Manassas
Ranked #10 because of its Google rating and availability: 4.9★ from 235 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Manassas
Ranked #11 because of its Google rating and trade focus: 5.0★ from 697 Google reviews, listed on Google as “HVAC contractor”.
Based on 5 of 8 factors; credentials, recency and availability not yet collected.
Based in Manassas
Ranked #12 because of its Google rating and trade focus: 4.7★ from 7,642 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Centreville, 6 mi away
Ranked #13 because of its Google rating and availability: 4.8★ from 993 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Manassas
Ranked #14 because of its Google rating and availability: 4.7★ from 616 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Alexandria, 17 mi away
Ranked #15 because of its Google rating and availability: 4.7★ from 15,537 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Warrenton, 14 mi away
Ranked #16 because of its Google rating and availability: 4.9★ from 2,082 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Sterling, 16 mi away
Ranked #17 because of its Google rating and availability: 4.9★ from 2,807 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Sterling, 16 mi away
Ranked #18 because of its Google rating and availability: 4.8★ from 5,283 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Sterling, 17 mi away
Ranked #19 because of its Google rating and availability: 4.9★ from 2,958 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Alexandria, 17 mi away
Ranked #20 because of its Google rating and availability: 4.8★ from 4,976 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Manassas
Ranked #21 because of its Google rating and trade focus: 5.0★ from 584 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Manassas
Ranked #22 because of its Google rating and trade focus: 4.8★ from 1,816 Google reviews, listed on Google as “HVAC contractor”.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Dale City, 13 mi away
Ranked #23 because of its Google rating and availability: 4.9★ from 1,060 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Fairfax, 16 mi away
Ranked #24 because of its Google rating and availability: 4.9★ from 1,794 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
Based in Sterling, 19 mi away
Ranked #25 because of its Google rating and availability: 5.0★ from 1,428 Google reviews, open 24/7.
Based on 6 of 8 factors; credentials and recency not yet collected.
#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 748 ranked HVAC contractors here; the rest are on their profiles.
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.
National price ranges in USD, not adjusted for Manassas. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| AC replacement | $3,887 | $5,978 | $8,073 | Per system, installed (unit plus labor); typical range of customer-reported jobs. US national range | October 2026 |
| Furnace replacement | $2,823 | $4,814 | $6,896 | Per system, installed; typical range of customer-reported jobs. US national range | October 2026 |
In Virginia, Virginia Board for Contractors (DPOR) licenses Contractor license with an HVAC specialty; HVAC technicians hold tradesman licenses.
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
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.
We scored 748 Manassas 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.
| Factor | Weight | Computed from | In Manassas data |
|---|---|---|---|
| Reputation | 35% | Bayesian-adjusted Google star rating | Measured |
| Credentials | 15% | Active state license 0.6, bond 0.2, workers’ comp 0.2 | Not yet collected |
| Review volume | 10% | log10(reviews + 1) against the list maximum | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 10% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | Google main category 1.0, business name 0.7, additional category 0.5 | Measured |
| Proximity | 5% | 1.0 when based in the city, falling to 0 at the trade’s radius | Measured |
| Completeness | 5% | Website, photos, description, hours, claimed profile (0.2 each) | Measured |