One Call ServicesHVAC contractor in Adelphi, MD
One Call Services is an HVAC contractor in Adelphi, MD, rated 5.0 from 2 Google reviews. Open 24 hours a day, 7 days a week.
Adelphi, MD0 paid placements in any rankingHow we rank
Key facts
| Phone | (202) 375-4111 |
|---|---|
| Hours | Open 24 hours, 7 days a week |
| Google rating | 5.0 from 2 Google reviews |
Trades
Each trade shows the evidence we matched it on.
- HVACmain tradeGoogle main category
Service area
Serves Adelphi and 12 towns within 25 miles: South Laurel, Glenn Dale, Goddard, Maryland City, Greenbelt, Laurel, Seabrook, Beltsville, Lanham-Seabrook, Lanham, New Carrollton and Fairwood.
Based in Adelphi, MDView on map
Opening hours
| Day | Hours |
|---|---|
| Monday | Open 24 hours |
| Tuesday | Open 24 hours |
| Wednesday | Open 24 hours |
| Thursday | Open 24 hours |
| Friday | Open 24 hours |
| Saturday | Open 24 hours |
| Sunday | Open 24 hours |
- Open 24/7
- Open evenings — no
- Open Saturdays
- Open Sundays
- Emergency service
Typical heating and cooling prices
| Job | Low | Typical | High |
|---|---|---|---|
| AC replacementPer system, installed (unit plus labor); typical range of customer-reported jobs. US national range | $3,887 | $5,978 | $8,073 |
| Furnace replacementPer system, installed; typical range of customer-reported jobs. US national range | $2,823 | $4,814 | $6,896 |
Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.
Questions about One Call Services
What are One Call Services’ hours?
One Call Services is open 24 hours a day, 7 days a week. Its listed hours are Open 24 hours, 7 days a week. On Saturdays it is open Open 24 hours, and on Sundays Open 24 hours. Hours come from the business listing; holiday hours may differ.
What areas does One Call Services serve?
Serves Adelphi and 12 towns within 25 miles: South Laurel, Glenn Dale, Goddard, Maryland City, Greenbelt, Laurel, Seabrook, Beltsville, Lanham-Seabrook, Lanham, New Carrollton and Fairwood. The list is based on the business's location and the usual service radius for heating and cooling. Confirm your address is covered when you call.
What do Google reviews say about One Call Services?
One Call Services has a rating of 5.0 from 2 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.
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