HVACin Denver, Pennsylvania
Six HVAC companies are based in Denver, PA, and ten more from nearby towns cover it. Google ratings run from 2.6 to 5.0 stars, with review counts from 0 to 1282 (as of Oct 2026). Three of the six have a website on record. One has 50 or more Google reviews and four have fewer than ten, so the list mixes long-established shops with newer ones. Two open by 7 AM on weekdays. The closest ones from outside town are in Reinholds, Adamstown, Lancaster, Stevens and 1 other town, within 4 miles.
Also serving Denver
The 10 closest, by distance from the center of Denver's listings, out of 130 within 20 miles. Owners who told us they serve Denver are listed first.
Compare HVAC pros in Denver
| Business | Based in | Phone | Google rating | Free estimates | After-hours | Serves |
|---|---|---|---|---|---|---|
| Cocalico Plumbing & Heating | Denver | (717) 738-0760 | 4.9 (1282) | not reported | not reported | Denver |
| Mr. Freeze Mechanical | Denver | (717) 723-2490 | 2.6 (17) | not reported | not reported | Denver |
| Ready-Go AC Repair Pros | Denver | (223) 210-9409 | 5.0 (5) | not reported | not reported | Denver |
| H F Merklinger Jr | Denver | (717) 445-9123 | 5.0 (4) | not reported | not reported | Denver |
| David L Good Heating & A/C Services | Denver | (717) 445-7373 | 4.0 (1) | not reported | not reported | Denver |
| Helvoris HVAC Expert | Denver | (717) 336-4723 | none | not reported | not reported | Denver |
| JSL Mechanical Inc | Reinholds | (717) 336-2255 | 4.4 (64) | not reported | not reported | Reinholds |
| Rodney J Good Mechanical Heating | Adamstown | (717) 484-1660 | 4.8 (36) | not reported | not reported | Adamstown |
| Jon's Air Care | Lancaster | (717) 314-2856 | none | not reported | not reported | Lancaster |
| County Line Mechanical | Reinholds | (717) 336-0185 | 4.8 (17) | not reported | not reported | Reinholds |
| Hoffman Mechanical HVAC | Reinholds | (717) 415-0784 | 5.0 (50) | not reported | not reported | Reinholds |
| Williams Plumbing, Heating & A/C LLC | Reinholds | (717) 278-7856 | 4.5 (4) | not reported | open 24 hrs (Google) | Reinholds |
| Vertex Mechanical Inc | Stevens | (717) 335-2633 | 4.9 (1260) | not reported | open 24 hrs (Google) | Stevens |
| Sauder Fuel | Adamstown | (717) 721-9560 | 4.8 (1039) | not reported | not reported | Adamstown |
| Ephrata City HVAC Star | Ephrata | (717) 636-7414 | 5.0 (2) | not reported | open 24 hrs (Google) | Ephrata |
| Les Weaver Heating & Air Conditioning | Ephrata | (717) 733-8806 | 4.4 (76) | not reported | not reported | Ephrata |
Ratings and review counts from Google, as of Oct 19, 2026. "Not reported" means the owner has not told us yet; it does not mean no.
Before you call
Heating and cooling companies vary in what they service. Read the HVAC hiring guide, including what to ask and when to book.
HVAC in Denver: questions answered from the listings
Denver HVAC: how many local companies are there?
Six, as of Oct 19, 2026: Cocalico Plumbing & Heating, Mr. Freeze Mechanical, Ready-Go AC Repair Pros, H F Merklinger Jr, David L Good Heating & A/C Services and Helvoris HVAC Expert. Another ten from nearby towns serve Denver, listed under "Also serving Denver."
Which nearby towns have HVAC companies that cover Denver?
Reinholds, Adamstown, Lancaster, Stevens, Ephrata. The closest is JSL Mechanical Inc in Reinholds, about 2 miles away.
Denver HVAC with the biggest review count
Cocalico Plumbing & Heating, with 1282 reviews at 4.9 stars as of Oct 19, 2026. Mr. Freeze Mechanical is next with 17. A high count means a busy shop, not necessarily the right one for your job.
Do all the Denver, PA HVAC companies have websites?
No. Ready-Go AC Repair Pros, David L Good Heating & A/C Services and Helvoris HVAC Expert have no website on record, so the phone number on the listing is the way to reach them. For the rest, the site link shows up once the listing is claimed.
Other trades in Denver
HVAC in nearby towns
Ratings from Google, as of Oct 2026. Other fields are owner reported and dated on each listing. Order on this page: claimed listings first, then by Google review count. How this directory works.