93/100CR Score
Ranked #1 because of its Google rating and availability: 4.7★ from 8,039 Google reviews, open 24/7.
- 4.7★ from 8,039 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6420 Erdman Ave, Baltimore, MD 21205
Best HVAC Contractors in Rossville, MD (2026)
576 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Best overall in Rossville: Michael & Son Services, CR Score 93/100; 4.7★ from 8,039 Google reviews; open 24/7.
- 2
Best for emergencies (open 24/7): Complete Climate Services LLC, posts 24/7 hours; ranked #2 of 576.
- 19
Most-reviewed: Len The Plumber Heating & Air, LLC, 15,911 Google reviews at 4.7★, the most of 576 ranked; ranked #19.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
576 Rossville HVAC contractors are ranked here by CR Score, from 8 published factors. 170 are open 24/7, 349 open Saturdays and 263 open Sundays, based on posted hours. The median Google rating is 4.8★ across 576 rated businesses.
Top 10 HVAC contractors in Rossville at a glance
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Michael & Son Services | 93 | 4.7★ (8,039) | Baltimore, 4 mi away | 24/7 | Overall |
| 2 | Complete Climate Services LLC | 91 | 5.0★ (786) | Baltimore, 7 mi away | 24/7 | Emergencies |
| 3 | Maryland Heating & Air | 91 | 4.9★ (369) | Essex, 2 mi away | 24/7 | — |
| 4 | Contemporary Air Systems, Inc. | 90 | 5.0★ (195) | Essex, 2 mi away | 24/7 | — |
| 5 | Boothe's Heating, Air, Plumbing, Drains & Electrical | 90 | 4.9★ (1,461) | Dundalk, 12 mi away | 24/7 | — |
| 6 | Horizon Services - Air Conditioning, Heating, Plumbing, & Electrical | 90 | 4.8★ (4,514) | Baltimore, 15 mi away | 24/7 | — |
| 7 | Hughes Mechanical, LLC | 90 | 4.8★ (408) | Essex, 2 mi away | 24/7 | — |
| 8 | Alpha Heating & Air Conditioning, LLC | 89 | 4.9★ (419) | Arbutus, 10 mi away | 24/7 | — |
| 9 | Reliability Home Services | 89 | 4.7★ (539) | Dundalk, 5 mi away | 24/7 | — |
| 10 | At Your Service Heating and Cooling LLC | 88 | 4.6★ (811) | Baltimore, 4 mi away | 24/7 | — |
The 576 best HVAC contractors in Rossville, 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.
Based in Baltimore, 7 mi away
91/100CR ScoreRanked #2 because of its Google rating and availability: 5.0★ from 786 Google reviews, open 24/7.
- 5.0★ from 786 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 204 S Chapel St, Baltimore, MD 21231
Based in Essex, 2 mi away
91/100CR ScoreRanked #3 because of its Google rating and availability: 4.9★ from 369 Google reviews, open 24/7.
- 4.9★ from 369 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1 Mace Ave, Essex, MD 21221
Based in Essex, 2 mi away
90/100CR ScoreRanked #4 because of its Google rating and availability: 5.0★ from 195 Google reviews, open 24/7.
- 5.0★ from 195 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 613 Eastern Blvd, Essex, MD 21221
Based in Dundalk, 12 mi away
90/100CR ScoreRanked #5 because of its Google rating and availability: 4.9★ from 1,461 Google reviews, open 24/7.
- 4.9★ from 1,461 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 7600 Energy Pkwy Suite 114, Curtis Bay Industrial Area, MD 21226
Based in Baltimore, 15 mi away
90/100CR ScoreRanked #6 because of its Google rating and availability: 4.8★ from 4,514 Google reviews, open 24/7.
- 4.8★ from 4,514 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2607 Rolling Rd. #201, Windsor Mill, MD 21244
Based in Essex, 2 mi away
90/100CR ScoreRanked #7 because of its Google rating and availability: 4.8★ from 408 Google reviews, open 24/7.
- 4.8★ from 408 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 820 Eastern Blvd, Essex, MD 21221
Based in Arbutus, 10 mi away
89/100CR ScoreRanked #8 because of its Google rating and availability: 4.9★ from 419 Google reviews, open 24/7.
- 4.9★ from 419 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Dundalk, 5 mi away
89/100CR ScoreRanked #9 because of its Google rating and availability: 4.7★ from 539 Google reviews, open 24/7.
- 4.7★ from 539 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4030 North Point Blvd suite a, Dundalk, MD 21222
Based in Baltimore, 4 mi away
88/100CR ScoreRanked #10 because of its Google rating and availability: 4.6★ from 811 Google reviews, open 24/7.
- 4.6★ from 811 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 6801 Eastern Ave # 209, Baltimore, MD 21224
#11 Broyles HVACR
Based in Joppatowne, 8 mi away
88/100CR ScoreRanked #11 because of its Google rating and availability: 4.9★ from 244 Google reviews, open 24/7.
- 4.9★ from 244 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 37 Neptune Dr, Joppatowne, MD 21085
Based in Baltimore, 8 mi away
88/100CR ScoreRanked #12 because of its Google rating and availability: 4.8★ from 354 Google reviews, open 24/7.
- 4.8★ from 354 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3510 Keswick Rd, Baltimore, MD 21211
Based in Timonium, 12 mi away
88/100CR ScoreRanked #13 because of its Google rating and availability: 4.8★ from 614 Google reviews, open 24/7.
- 4.8★ from 614 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 9528 Deereco Rd, Timonium, MD 21093
#14 HGH Mechanical
Based in Edgewood, 12 mi away
88/100CR ScoreRanked #14 because of its Google rating and availability: 4.9★ from 337 Google reviews, open 24/7.
- 4.9★ from 337 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 2107 Emmorton Park Rd #111, Edgewood, MD 21040
Based in Kew Gardens Hills, 8 mi away
88/100CR ScoreRanked #15 because of its Google rating and availability: 4.9★ from 177 Google reviews, open 24/7.
- 4.9★ from 177 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
Based in Dundalk, 5 mi away
88/100CR ScoreRanked #16 because of its Google rating and availability: 4.7★ from 247 Google reviews, open 24/7.
- 4.7★ from 247 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4030 North Point Blvd, Dundalk, MD 21222
Based in Annapolis, 25 mi away
87/100CR ScoreRanked #17 because of its Google rating and availability: 4.9★ from 2,904 Google reviews, open 24/7.
- 4.9★ from 2,904 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 1991 Moreland Pkwy, Annapolis, MD 21401
Based in Rosedale, 2 mi away
87/100CR ScoreRanked #18 because of its Google rating and trade focus: 4.9★ from 400 Google reviews, listed on Google as “HVAC contractor”.
- 4.9★ from 400 Google reviews
- Hours
- Mon–Sun 7 AM–9 PM
- Address
- 8227 Philadelphia Rd, Rosedale, MD 21237
Based in Arbutus, 12 mi away
87/100CR ScoreRanked #19 because of its Google rating and review volume: 4.7★ from 15,911 Google reviews, the most Google reviews on this list (15,911).
- 4.7★ from 15,911 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 3610 Commerce Dr Suite 808, Halethorpe, MD 21227
#20 Rowbel Services
Based in Essex, 1 mi away
87/100CR ScoreRanked #20 because of its Google rating and availability: 5.0★ from 32 Google reviews, open 24/7.
- 5.0★ from 32 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 4 Nashua Ct #8, Essex, MD 21221
Based in Arbutus, 13 mi away
87/100CR ScoreRanked #21 because of its Google rating and availability: 4.9★ from 275 Google reviews, open 24/7.
- 4.9★ from 275 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5515 Selma Ave Suite 2B, Halethorpe, MD 21227
#22 Farnen & Dermer
Based in Owings Mills, 17 mi away
87/100CR ScoreRanked #22 because of its Google rating and availability: 4.8★ from 931 Google reviews, open 24/7.
- 4.8★ from 931 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 10500 Reisterstown Rd, Owings Mills, MD 21117
Based in Bel Air North, 18 mi away
87/100CR ScoreRanked #23 because of its Google rating and availability: 4.5★ from 7,297 Google reviews, open 24/7.
- 4.5★ from 7,297 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 125 Industry Ln, Forest Hill, MD 21050
Based in Essex, 2 mi away
87/100CR ScoreRanked #24 because of its Google rating and trade focus: 4.8★ from 530 Google reviews, listed on Google as “HVAC contractor”.
- 4.8★ from 530 Google reviews
- Hours
- Mon–Sun 8 AM–8 PM
- Address
- 11 S Marlyn Ave, Essex, MD 21221
Based in Arbutus, 13 mi away
87/100CR ScoreRanked #25 because of its Google rating and availability: 4.9★ from 217 Google reviews, open 24/7.
- 4.9★ from 217 Google reviews
- Open 24/7
- Hours
- Open 24 hours, 7 days
- Address
- 5195 Raynor Ave, Linthicum Heights, MD 21090
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 576 ranked HVAC contractors here; the rest are on their profiles.
Also serving Rossville
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.
| Business | Google rating | Distance |
|---|---|---|
| AAA | 4.7★ (60) | 4 mi |
| Alban Mechanical | 3.0★ (2) | 11 mi |
| All About Everything HVAC & Maintenance | 3.0★ (2) | 15 mi |
| Around the Clock Plumbing & Heating | 5.0★ (2) | 14 mi |
| Bennett Air Care LLC | 5.0★ (2) | 8 mi |
| Capitol Boiler Works | 1.0★ (2) | 12 mi |
| Commercial CAD | 5.0★ (2) | 2 mi |
| D&J solutions LLC | 4.9★ (17) | 1 mi |
| DJE Plumbing and Heating | 5.0★ (2) | 9 mi |
| DM3 Heating & Air | 5.0★ (2) | 9 mi |
| Elite Heating And Cooling | 3.0★ (2) | 6 mi |
| oncall-garageservice | 5.0★ (2) | 16 mi |
| One Hour Air Conditioning & Heating® of Harford County | 4.8★ (292) | 18 mi |
| R & G Plumbing & Heating | 5.0★ (2) | 3 mi |
| Ready Air HVAC | 5.0★ (2) | 5 mi |
| Scardina Plumbing-Heating Inc | 5.0★ (2) | 7 mi |
| Shielded Edge Property Solutions | 5.0★ (2) | 13 mi |
| Thomas Air Conditioning Services, Inc. | 5.0★ (2) | 14 mi |
| TRIO HVACR SERVICES | 5.0★ (2) | 2 mi |
| Wrangler Plumbing & Heating | 5.0★ (2) | 14 mi |
How much do HVAC contractors cost in Rossville?
National price ranges in USD, not adjusted for Rossville. 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 |
How to check an HVAC contractor's license in Maryland
In Maryland, Maryland State Board of Heating, Ventilation, Air-Conditioning and Refrigeration Contractors licenses Heating, ventilation, air conditioning and refrigeration work.
- Check that the status is active and the name matches the contract or truck.
- 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 Maryland
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 Rossville HVAC contractors
We scored 576 Rossville 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 Rossville 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 |
HVAC contractors in Rossville: frequently asked questions
Who is the best HVAC contractor in Rossville?
By CR Score, the highest-ranked HVAC contractor in Rossville, MD is Michael & Son Services with a CR Score of 93/100. It has 4.7★ from 8,039 Google reviews. It is open 24/7. Complete Climate Services LLC (#2) and Maryland Heating & Air (#3) follow. We ranked 576 HVAC contractors on 8 factors, last updated October 22, 2026.
How many HVAC contractors are there in Rossville?
ContractorsRanked ranks 576 HVAC contractors serving Rossville, MD. Another 20 within 25 mi are listed but not ranked yet. Counts are as of October 2026.
Which HVAC contractors in Rossville are open 24/7?
170 ranked HVAC contractors in Rossville post 24/7 hours. The highest-ranked are Michael & Son Services (#1), Complete Climate Services LLC (#2) and Maryland Heating & Air (#3). Hours come from each business's Google listing as of October 2026, so call to confirm.
Which HVAC contractors in Rossville work on weekends?
349 of 576 ranked HVAC contractors post Saturday hours and 263 post Sunday hours. The highest-ranked open Saturdays are Michael & Son Services (#1), Complete Climate Services LLC (#2) and Maryland Heating & Air (#3). Posted hours are office hours; crews may book weekend jobs separately.
How do I check an HVAC contractor's license in Maryland?
In Maryland, Maryland State Board of Heating, Ventilation, Air-Conditioning and Refrigeration Contractors handles licensing and covers Heating, ventilation, air conditioning and refrigeration work.
How much does ac replacement cost in Rossville?
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 Rossville. Prices were last checked October 2026. Get at least two written quotes before you hire.
What Google rating do Rossville HVAC contractors have?
The median Google rating among 576 rated HVAC contractors in Rossville is 4.8★, with a median of 20 reviews. Len The Plumber Heating & Air, LLC has the most, 15,911 reviews, and ranks #19. 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 Rossville?
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 Rossville
- October 2026: CR Scores recalculated for 576 hvac contractors serving Rossville.
- October 2026: 2 duplicate listings merged.
More HVAC contractors and Rossville pages
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