517 HVAC contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Londontowne: Staton Heating, Cooling & Plumbing, CR Score 65/100; 4.9★ from 2,904 Google reviews; open 24/7.
Best for emergencies (open 24/7): Bethany Air, posts 24/7 hours; ranked #2 of 517.
Most-reviewed: Len The Plumber Heating & Air, LLC, 15,911 Google reviews at 4.7★, the most of 517 ranked; ranked #41.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
517 Londontowne HVAC contractors are ranked here by CR Score, from ten published factors. 171 are open 24/7, 326 open Saturdays and 231 open Sundays, based on posted hours. The median Google rating is 4.8★ across 517 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | Staton Heating, Cooling & Plumbing | 65 | 4.9★ (2,904) | Annapolis, 4 mi away | 24/7 | Overall |
| 2 | Bethany Air | 64 | 4.8★ (1,251) | Edgewater, 1 mi away | 24/7 | Emergencies |
| 3 | Barstow & Sons Heating and Cooling | 64 | 4.9★ (1,127) | Annapolis, 3 mi away | 24/7 | — |
| 4 | Grove Heating & Cooling | 63 | 4.9★ (1,156) | Crofton, 9 mi away | 24/7 | — |
| 5 | Belair Engineering and Service Company, Inc. | 62 | 4.9★ (1,421) | Greater Upper Marlboro, 10 mi away | 24/7 | — |
| 6 | David E White's Plumbing, Heating & Repair Company | 62 | 5.0★ (238) | Annapolis, 4 mi away | 24/7 | — |
| 7 | United Air Temp | 61 | 4.8★ (253) | Annapolis, 4 mi away | 24/7 | — |
| 8 | Michael & Son Services | 61 | 4.8★ (8,326) | Hyattsville, 17 mi away | Sat · Sun | — |
| 9 | Boothe's Heating, Air, Plumbing, Drains & Electrical | 61 | 4.9★ (1,461) | Dundalk, 17 mi away | 24/7 | — |
| 10 | Fixed Right & Guaranteed Super Techs, LLC | 61 | 5.0★ (1,032) | Rosaryville, 17 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and trade focus: 4.9★ from 2,904 Google reviews, listed on Google as “HVAC contractor”.
Based in Edgewater, 1 mi away
Ranked #2 because of its Google rating and trade focus: 4.8★ from 1,251 Google reviews, listed on Google as “HVAC contractor”.
Based in Annapolis, 3 mi away
Ranked #3 because of its Google rating and trade focus: 4.9★ from 1,127 Google reviews, listed on Google as “HVAC contractor”.
Based in Crofton, 9 mi away
Ranked #4 because of its Google rating and trade focus: 4.9★ from 1,156 Google reviews, listed on Google as “HVAC contractor”.
Based in Greater Upper Marlboro, 10 mi away
Ranked #5 because of its Google rating and trade focus: 4.9★ from 1,421 Google reviews, listed on Google as “HVAC contractor”.
Based in Annapolis, 4 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 238 Google reviews, listed on Google as “Heating contractor”.
Based in Annapolis, 4 mi away
Ranked #7 because of its Google rating and trade focus: 4.8★ from 253 Google reviews, listed on Google as “HVAC contractor”.
Based in Hyattsville, 17 mi away
Ranked #8 because of its Google rating and trade focus: 4.8★ from 8,326 Google reviews, listed on Google as “HVAC contractor”.
Based in Dundalk, 17 mi away
Ranked #9 because of its Google rating and trade focus: 4.9★ from 1,461 Google reviews, listed on Google as “HVAC contractor”.
Based in Rosaryville, 17 mi away
Ranked #10 because of its Google rating and trade focus: 5.0★ from 1,032 Google reviews, listed on Google as “HVAC contractor”.
Based in Arnold, 10 mi away
Ranked #11 because of its Google rating and trade focus: 4.8★ from 367 Google reviews, listed on Google as “HVAC contractor”.
Based in Stevensville, 13 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 285 Google reviews, listed on Google as “HVAC contractor”.
Based in Edgewater, 1 mi away
Ranked #13 because of its Google rating and trade focus: 4.9★ from 51 Google reviews, listed on Google as “HVAC contractor”.
Based in Crofton, 10 mi away
Ranked #14 because of its Google rating and trade focus: 4.9★ from 221 Google reviews, listed on Google as “HVAC contractor”.
Based in Annapolis, 3 mi away
Ranked #15 because of its Google rating and trade focus: 5.0★ from 52 Google reviews, listed on Google as “HVAC contractor”.
Based in Greenbelt, 18 mi away
Ranked #16 because of its Google rating and trade focus: 4.8★ from 1,306 Google reviews, listed on Google as “HVAC contractor”.
Based in Hanover, 17 mi away
Ranked #17 because of its Google rating and trade focus: 4.9★ from 2,167 Google reviews, listed on Google as “HVAC contractor”.
Based in Davidsonville, 6 mi away
Ranked #18 because of its Google rating and trade focus: 4.8★ from 111 Google reviews, listed on Google as “HVAC contractor”.
Based in Dundalk, 12 mi away
Ranked #19 because of its Google rating and trade focus: 5.0★ from 179 Google reviews, listed on Google as “HVAC contractor”.
Based in Stevensville, 13 mi away
Ranked #20 because of its Google rating and trade focus: 4.8★ from 382 Google reviews, listed on Google as “HVAC contractor”.
Based in Severna Park, 9 mi away
Ranked #21 because of its Google rating and trade focus: 5.0★ from 98 Google reviews, listed on Google as “HVAC contractor”.
Based in Fort Washington, 24 mi away
Ranked #22 because of its Google rating and trade focus: 4.8★ from 1,775 Google reviews, listed on Google as “HVAC contractor”.
Based in Glen Burnie, 17 mi away
Ranked #23 because of its Google rating and trade focus: 4.9★ from 998 Google reviews, listed on Google as “HVAC contractor”.
Based in Baltimore, 25 mi away
Ranked #24 because of its Google rating and trade focus: 5.0★ from 786 Google reviews, listed on Google as “HVAC contractor”.
Based in Pasadena, 12 mi away
Ranked #25 because of its Google rating and trade focus: 5.0★ from 936 Google reviews, listed on Google as “HVAC contractor”.
#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 517 ranked HVAC contractors here; the rest are on their profiles.
| Rank | Business | CR Score | Google rating | Distance |
|---|---|---|---|---|
| 26 | Lowe's Air Duct Cleaning | 59 | 4.9★ (286) | 5 mi |
| 27 | Ambient LLC | 58 | 4.8★ (336) | 16 mi |
| 28 | Environmental Systems Associates | 58 | 4.9★ (658) | 23 mi |
| 29 | ARS / Rescue Rooter | 58 | 4.4★ (3,510) | 20 mi |
| 30 | B&B Co. Inc. | 58 | 4.7★ (30) | 4 mi |
| 31 | Clarksville Heating & Air, LLC | 58 | 5.0★ (729) | 20 mi |
| 32 | Thermal Plus LLC | 58 | 5.0★ (203) | 13 mi |
| 33 | Pro-Tech HVAC Home | 58 | 5.0★ (55) | 5 mi |
| 34 | JJ HEATING & COOLING COMPANY | 58 | 4.8★ (110) | 13 mi |
| 35 | Aire Serv of Prince Georges County | 58 | 4.8★ (176) | 16 mi |
| 36 | Bayside | 58 | 5.0★ (252) | 9 mi |
| 37 | Fox services | 58 | 5.0★ (188) | 14 mi |
| 38 | C&V Home Services Inc | 58 | 4.9★ (114) | 16 mi |
| 39 | Elite Air Annapolis AC Repair | 58 | 5.0★ (15) | 4 mi |
| 40 | OP HVAC Solutions | 58 | 5.0★ (21) | 7 mi |
| 41 | Len The Plumber Heating & Air, LLC | 57 | 4.7★ (15,911) | 23 mi |
| 42 | NARFIX HEATING AND AIR CONDITIONING LLC | 57 | 5.0★ (293) | 24 mi |
| 43 | Coastal Co., Inc. | 57 | 4.8★ (699) | 4 mi |
| 44 | Fresh Air Concepts, LLC | 57 | 4.9★ (217) | 21 mi |
| 45 | Arundel Service Experts | 57 | 4.7★ (472) | 21 mi |
| 46 | Nero's Heating and Air | 57 | 4.9★ (166) | 20 mi |
| 47 | R&R HVAC Solutions | 57 | 5.0★ (220) | 17 mi |
| 48 | Heidler Inc | 57 | 4.8★ (529) | 4 mi |
| 49 | Sila Heating, Air Conditioning & Plumbing | 57 | 4.9★ (275) | 23 mi |
| 50 | United Air Temp | 57 | 4.8★ (146) | 18 mi |
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 |
|---|---|---|
| A-Gas Rapid Recovery - Baltimore | 5.0★ (2) | 18 mi |
| All About Everything HVAC & Maintenance | 3.0★ (2) | 14 mi |
| Davis Plumbing & Heating Inc | 5.0★ (2) | 13 mi |
| DJE Plumbing and Heating | 5.0★ (2) | 20 mi |
| DL Mechanical LLC | 5.0★ (2) | 11 mi |
| F.H. Furr Plumbing, Heating, Air Conditioning & Electrical | 4.8★ (1,788) | 17 mi |
| GW Air Service | 4.9★ (270) | 23 mi |
| Horizon Mechanical Services LLC | 5.0★ (2) | 18 mi |
| JDL HVAC & Plumbing Services | 4.8★ (678) | 20 mi |
| Meleney Equipment Inc | 5.0★ (2) | 20 mi |
| oncall-garageservice | 5.0★ (2) | 15 mi |
| One Call Services | 5.0★ (2) | 16 mi |
| One Hour Air Conditioning & Heating® of Gaithersburg | 4.8★ (302) | 22 mi |
| Reliability Home Services | 4.7★ (539) | 24 mi |
| ROCKY LLC | 4.6★ (253) | 17 mi |
| Sears Heating and Air Conditioning | 3.0★ (2) | 1 mi |
| Severn's Heating and Air Conditioning | 3.0★ (2) | 10 mi |
| United Air Temp | 4.8★ (171) | 20 mi |
| United Service Company | 5.0★ (2) | 17 mi |
| Wrangler Plumbing & Heating | 5.0★ (2) | 15 mi |
National price ranges in USD, not adjusted for Londontowne. 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 Maryland, Maryland State Board of Heating, Ventilation, Air-Conditioning and Refrigeration Contractors licenses Heating, ventilation, air conditioning and refrigeration work.
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 517 Londontowne HVAC contractors on ten 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. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, 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 Londontowne data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |