HVAC Services in Rockville, MD

Insured and available same-day — accurate diagnosis and honest pricing on every job.

Insured

Same-Day Available

Parts + Labor Warranty

All Major Brands

Furnace Not Heating

Your furnace is running but the house stays cold — or shuts off before it ever warms up.

Efrain diagnoses the root cause on-site and restores heat the same day in most Rockville cases.

Same-day diagnosis available
Heat restored same day in most cases
Parts + labor warranty
All major brands and fuel types

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AC Running But Not Cooling

Your air conditioner runs all day but the house won't reach the set temperature.

Efrain finds the actual cause — refrigerant, electrical, or mechanical — and fixes it without guesswork.

Full refrigerant and coil diagnostic
Cooling restored same day in most cases
Leak detection and repair
No part swapped without diagnosis first

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HVAC System Replacement

Your system is aging, failing repeatedly, or costing more to run than it should.

A properly sized replacement — with real energy savings and a full warranty.

Proper load calculation — no like-for-like guesswork
Permit pulled and code-compliant
Full commissioning before Efrain leaves
Heat pump and high-efficiency options available

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Thermostat Not Responding

Your thermostat is blank, frozen, or not communicating with the HVAC system.

Efrain diagnoses the full system — thermostat, wiring, and HVAC — so you get the right fix, not just a thermostat swap.

Full system diagnostic — not just the thermostat
Wiring and power check included
Smart thermostat compatible
Same-day most calls

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Heat Pump Not Switching Modes

Your heat pump blows cool air in heating mode, or warm air when you want cooling.

A reversing valve and controls diagnostic — with an honest assessment of repair vs. replacement.

Reversing valve diagnosis included
Controls and refrigerant check
Repair vs. replacement cost comparison
All major heat pump brands

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HVAC Maintenance Overdue

Your system hasn't been serviced in years — you don't know what state it's actually in.

A full inspection and tune-up that tells you exactly what you have, what needs attention now, and what can wait.

Full system inspection — not a 20-minute filter swap
Coil cleaning, drain flush, refrigerant check
Written report of findings
No pressure repairs — issues explained, decisions yours

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5★

Avg Rating

225

Verified Reviews

Services Offered

Journeyman

Maryland HVAC

★★★★★

225 Homeowners Trust Efrain Sarceno

5 average rating across 225 verified reviews.

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Ready to schedule with Infinite Heating & Air?

Call (240) 431-3658 or schedule service — same-day service available across Rockville, MD.

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(240) 431-3658

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