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P&Y Heating and Cooling technician servicing an HVAC system at a Gaithersburg, MD home
5.0★ · 112+ reviews · Licensed & Insured

HVAC Contractor in Gaithersburg, MD

Family-owned heating & cooling for Montgomery County. Fast AC and furnace repair, high-efficiency installations, and 24/7 emergency service — done right by licensed local technicians.

  • Same-day service available
  • Free written estimates
  • 24/7 emergency repair
  • Financing options

Get Your Free Estimate

Fast response · No obligation · Upfront pricing

Prefer to talk now? Call (831) 461-3437

5.0★ Rated112+ Google reviews
Family-OwnedServing MoCo over a decade
Licensed & InsuredMD Master #96254
24/7 EmergencySame-day service
Free EstimatesUpfront written pricing
HVAC Emergency?

HVAC Emergency in Gaithersburg? Start Here

No heat during a freeze or no cooling in a heat wave is stressful — and guessing can turn a repair into a bigger problem. Take a few safe steps first, then call. We answer 24/7 and give you immediate guidance before anyone authorizes work.

The First 30 Minutes: Stay Safe

  1. 1Set the thermostat to off if the system is making an unsafe noise, leaking water, or producing an unusual odor.
  2. 2If you smell gas, leave the home and call 911 and your gas utility first — before you do anything else.
  3. 3For smoke, electrical arcing, or a burning smell, leave the equipment off and don't repeatedly reset the breaker.
  4. 4Photograph the thermostat, the model/serial plate, any error code, and the filter — it speeds up the diagnosis.
  5. 5Call with your symptom, system type, and address so we can give you safe guidance and dispatch the right help.

Never handle refrigerant, open a furnace cabinet, or attempt gas, combustion, or electrical repairs yourself — those require a licensed technician.

How Urgent Is It?

Call immediately

Gas odor, smoke, electrical arcing, a burning electrical smell, or unusual combustion behavior.

Call promptly

No heat, no cooling, a frozen coil, an active condensate leak, short cycling, or a system that won't start.

Schedule a visit

Rising utility bills, uneven rooms, humidity, weak airflow, recurring repairs, or a system nearing replacement.

Our Services

Complete Heating & Cooling Services

From emergency repairs to full system installations, P&Y handles every HVAC need for homes and businesses across Montgomery County.

Why Choose Us

The Local HVAC Company You Can Trust

We built our reputation on honest advice, quality work, and treating your home like our own.

Family-Owned & Local

Serving Montgomery County for over a decade. When you call, you reach neighbors — not a national call center.

Licensed & Insured

MD HVAC Master License #96254 (Pedro Alcantara). Every job is done to code with proper permits.

24/7 Emergency Service

Heat out in a freeze? AC down in a heat wave? We answer around the clock and prioritize urgent calls.

Upfront, Honest Pricing

Written quotes before any work begins. We give straight repair-versus-replace advice — never a hard sell.

5.0★ Reputation

112+ reviews from Montgomery County homeowners who trust us with their comfort.

Full-Service HVAC

Repair, installation, maintenance, heat pumps, ductwork, and indoor air quality — one trusted team for all of it.

Honest Pricing

Honest Gaithersburg HVAC Pricing — No Surprises

Too many companies promise “upfront pricing” and publish no numbers. Here is real, researched local cost context so you can plan — always confirmed with a written scope before any work begins. These are ranges for the Gaithersburg market, not a quote.

Diagnostic fee

$89–$175

Ask if it's credited toward the repair

Typical HVAC repair

$160–$675

Varies by the failed component

Full-system replacement

$7,000–$14,000

Depends on capacity, ducts & permits

Central AC tune-up

~$122

Seasonal maintenance benchmark

Common repair component ranges

  • Capacitor: $215–$435
  • Contactor: $220–$485
  • Condenser fan motor: $285–$775
  • Ignitor or flame sensor: $115–$330
  • Refrigerant leak or recharge: $375–$1,150

Which HVAC Option Fits Your Home?

Cost, life, and coverage depend on the equipment, install quality, and your property. Use the questions column to know what to ask for in writing.

OptionCost ContextBest For Gaithersburg HomesQuestions to Ask
Repair$160–$675 typical; component scope variesAn identifiable failure on otherwise serviceable equipmentWhat failed, what caused it, and is the repair warranted?
Full-system replacement$7,000–$14,000 researched contextAging equipment, repeated failures, or major efficiency concernsIs Manual J sizing, ductwork, permits, startup & disposal included?
Heat pumpVaries by capacity, electrical scope & ductworkOne system for heating and cooling with better humidity planningHow are backup heat, defrost & electrical requirements handled?
Furnace + ACVaries by equipment & installation scopeHomes keeping separate heating and cooling equipmentAre venting, coil, refrigerant circuit & duct transitions included?
MaintenanceCentral-AC tune-up benchmark ~$122Spring cooling and early-fall heating preparationWhich visits, parts, priority terms & exclusions are included?
Indoor air qualityVerified after an on-site evaluationHumidity, dust, odors, or persistent comfort complaintsWill airflow, duct condition & dehumidification load be measured?

Not sure whether to fix or replace? Read our guides to AC installation cost in Montgomery County and heat pump vs. furnace, or ask us for an honest, no-pressure comparison.

Credentials That Matter

Licensed, Permitted & Properly Sized

Verifiable credentials protect your home and your investment. Here's exactly what we bring to every job in Montgomery County — no vague claims.

MD HVACR License

Master License #96254 (Pedro Alcantara). Verify it anytime through the Maryland HVACR Board lookup.

EPA Section 608

Required certification for any technician who opens a refrigerant circuit. Refrigerant is never “topped off” without finding the leak first.

ACCA Manual J Sizing

We size new systems to your actual home's load — structure, windows, insulation, and ductwork — instead of repeating an old nominal size by habit.

Montgomery County Permits

We coordinate permits and inspections with the Department of Permitting Services (DPS) and WSSC where gas, electrical, or refrigerant work applies.

P&Y Heating and Cooling family-owned team serving Gaithersburg, MD
About P&Y

A Family Business Built on Comfort & Trust

P&Y Heating and Cooling is a small, family-owned company that has served Montgomery County for over a decade. Led by master technician Pedro Alcantara, our priority is simple: customer service, quality, and your comfort.

We're licensed, insured, and available around the clock — because HVAC problems don't wait for business hours. Whether it's a midnight no-heat call or a planned system upgrade, you get honest advice and workmanship we stand behind.

  • MD HVAC Master License #96254 — Pedro Alcantara
  • Serving Montgomery County for over a decade
  • Residential & commercial HVAC experts
  • Free estimates and second opinions
Learn More About Us
Service Areas

Serving Gaithersburg & All of Montgomery County

Based in Gaithersburg, we know the neighborhoods we serve — the access, HOA coordination, humidity, and older-home quirks that shape each visit.

Kentlands

HOA and architectural coordination when outdoor equipment, line sets, or visible work may change.

Montgomery Village

Recurring comfort issues and tight equipment access on aging planned-community systems.

Washington Grove

Older-home duct and electrical conditions confirmed before we quote — ductless where ductwork won't fit.

North Potomac

Homeowners comparing replacement, maintenance, humidity, and heat-pump options on larger homes.

Washingtonian Center

A recognizable local landmark reference — we confirm your exact service address before dispatch.

More Montgomery County communities we serve

What Our Neighbors Say

5.0 / 5· 112+ reviews
P&Y (Pedro) and his crew were absolutely outstanding. My unit was about 20 years old and giving problems. He was very responsive and made an appointment the same day. He not only told me the issue but gave me options — a repair price and a price on a new unit — even knowing the unit was 20 years old. Other companies just told me to change the unit. His crew spent almost 7 hours and tested it so it worked perfectly. Reasonable and great pricing than these big box companies.

Sandeep Visveswaran

Verified Google review

AC Installation

Great service and very honest. My parents had an HVAC issue where they called two different companies and both said to replace the whole unit. We decided to go for a 3rd opinion and contacted P&Y. It turned out to be a simple fix.

Mario Velarde

Verified Google review

AC Repair

Pedro found and repaired the problem with our AC that others had missed. He was prompt, professional and very pleasant to deal with. Very important to us was that the cost was reasonable AND that he concentrated on fixing the AC instead of trying to sell us a new one. I strongly recommend him.

Norma Neuberg

Verified Google review

AC Repair

Absolutely outstanding service. Our heat went out during extremely cold weather with 30+ mph winds in the DC/Maryland area, and this company came through when it mattered most. Pedro came out on a Saturday night around 8 PM, after finishing another job in Virginia, and still took the time to get our heat back up and running. That level of dedication is rare.

Sheldon D'Silva

Verified Google review

Emergency Heating Repair

10/10 recommend! As new homeowners, we truly appreciated how professional, knowledgeable, and patient the entire team was. They clearly explained the work and taught us how to properly use and maintain our new HVAC system. When we later had an issue with the ducts, they kindly returned, identified the problem, and saved us a significant amount of money.

Silvia Garcia

Verified Google review

Heating System Installation

I contracted with P&Y to replace my HVAC system — furnace, evaporator and condenser/compressor unit. They were on time, clean and professional. Price and warranty were the best I found; 5 previous estimates were significantly higher. I highly recommend P&Y!

Gene Verzi

Verified Google review

HVAC Replacement

HVAC Tips & Guides

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Contact Us

Get in Touch

Reach out any time for service, a free estimate, or a second opinion. We're here 24/7 for Montgomery County.

Call (831) 461-3437

Frequently Asked Questions

Answers to common questions about HVAC service in Gaithersburg and Montgomery County.

What HVAC services does P&Y provide in Gaithersburg, MD?
P&Y provides 24/7 emergency HVAC service, AC repair, furnace repair, heat-pump service, installation and replacement, seasonal maintenance, ductwork repair, duct cleaning, indoor air quality solutions, and commercial HVAC. We serve residential and commercial properties across Gaithersburg and Montgomery County.
How much does HVAC repair cost in Gaithersburg?
Local HVAC repair costs generally run $160–$675, with diagnostic fees commonly $89–$175. Typical component ranges include $215–$435 for a capacitor, $220–$485 for a contactor, $285–$775 for a condenser fan motor, $115–$330 for an ignitor or flame sensor, and $375–$1,150 for refrigerant leak or recharge work. The equipment, access, failure, and warranty affect the final quote.
How much does AC replacement cost in Gaithersburg, MD?
Local AC replacement estimates range from $5,000–$14,000, with full-system replacement typically $7,000–$14,000. A 2–3 ton AC installation using existing ductwork has a researched average around $5,655. We provide a free, itemized written quote after an in-home assessment.
Are you licensed and available 24/7?
Yes. We hold MD HVAC Master License #96254 (Pedro Alcantara) and we're available 24 hours a day for emergency HVAC service across Gaithersburg and Montgomery County. You can verify our license through the Maryland HVACR Board.
What should I do first when my HVAC system fails?
Turn the thermostat off when the system is unsafe, leaking, or producing an unusual odor. Leave the area for smoke, electrical arcing, or a strong gas odor and contact the appropriate emergency service first. Do not open equipment, handle refrigerant, bypass controls, or repeatedly reset a breaker — then call us.
How do I decide whether to repair or replace my HVAC system?
Compare the repair estimate with the equipment's age, service history, comfort, humidity, efficiency, duct condition, and warranty. Repair fits an isolated failure on otherwise serviceable equipment; replacement deserves comparison when failures recur, comfort stays poor, or restoring the equipment costs too much. We give you an honest written comparison.
Do you handle permits and inspections in Montgomery County?
Yes. Most HVAC installation, alteration, or replacement in Montgomery County requires a mechanical permit. Gas-furnace work involves DPS and WSSC inspections, while all-electric heat-pump work requires DPS inspection. We coordinate permits and inspections as part of the project.
When should I schedule HVAC maintenance?
Schedule cooling maintenance in spring and heating maintenance in early fall — before the first major heatwave or winter freeze. A thorough visit should cover filters, coils, condensate drainage, electrical connections, airflow, controls, and safety checks.
What should I do if my furnace smells like gas or burns electrically?
Turn the equipment off if it is safe to do so, and leave the area for a strong gas odor or any immediate danger, then contact the appropriate emergency service. Do not open the furnace, repeatedly reset a breaker, or attempt combustion or electrical repair. Once the immediate safety concern is handled, call us and we'll respond.
Why does Manual J sizing matter for a new system?
Manual J is the load calculation that matches equipment capacity to your actual home — its structure, windows, insulation, orientation, ductwork, and humidity — rather than repeating an old nominal size by habit. A like-for-like swap can repeat a sizing mistake, which is why we run a Manual J before recommending a replacement.
What credentials should I verify before hiring an HVAC contractor?
Verify the contractor's exact Maryland HVACR license through the Maryland HVACR Board lookup. For refrigerant work, confirm the technician holds EPA Section 608 certification. It's also fair to ask for insurance, written labor and manufacturer warranty terms with exclusions, and who is responsible for permits. We hold MD HVAC Master License #96254 (Pedro Alcantara).

Ready for Reliable Comfort?

Family-owned, licensed, and available 24/7. Call now for fast service and a free estimate across Montgomery County.

  • 5.0★ (112+ reviews)
  • Licensed & Insured
  • 24/7 Emergency Service
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