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Armstrong Air

Quality Counts with Keystone

Your Trusted HVAC Experts in Altoona, PA

Professional heating, cooling, and water heater services backed by over 8 years of experience and Armstrong dealer expertise.

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Why Choose Us

Quality Counts with Keystone, Your Local Altoona, PA Pros

When your comfort matters most, Keystone Heating and Air delivers reliable HVAC solutions throughout Altoona, Blair & Cambria Counties. With over 8 years of experience and authorized Armstrong dealer status, we bring professional expertise to every job.

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Licensed & Insured

Fully licensed HVAC professionals protecting your home and investment

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Prompt Service

Fast response times when you need heating and cooling help most

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Armstrong Dealer

Authorized dealer of premium Armstrong heating and cooling equipment

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Honest Pricing

Transparent quotes with no hidden fees or surprise charges

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Our Services

Complete Heating & Cooling Services in Altoona, PA

From emergency repairs to complete system installations, we handle all your HVAC needs with quality workmanship and honest service.

Air Conditioning Services in Altoona, PA by Keystone Heating and Air

mode_cool Air Conditioning Services

Keep your Altoona home cool and comfortable with professional AC installation, repair, and maintenance from certified Armstrong specialists.

AC Installation & Replacement

Professional installation of high-efficiency Armstrong central air systems with proper sizing and ductwork evaluation for maximum performance.

AC Repair & Service

Fast diagnosis and repair of all AC problems including refrigerant leaks, compressor failures, frozen coils, and inadequate cooling.

AC Maintenance & Tune-Ups

Comprehensive seasonal maintenance including coil cleaning, refrigerant verification, and performance testing to prevent breakdowns.

Heat Pump Services in Altoona, PA by Keystone Heating and Air

heat_pump Heat Pump Solutions

Year-round comfort with energy-efficient heat pumps that provide both heating and cooling for Altoona homes.

Heat Pump Installation

Expert installation of ducted Armstrong heat pump systems with proper outdoor placement and backup heat integration.

Heat Pump Repair

Professional diagnosis and repair of reversing valve problems, defrost failures, and refrigerant leaks.

Heat Pump Maintenance

Seasonal maintenance covering both heating and cooling modes for optimal year-round efficiency.

Ductless Mini-Split Services in Altoona, PA by Keystone Heating and Air

climate_mini_split Mini-Split Services

Ductless comfort solutions perfect for room additions, homes without ductwork, and independent zone control.

Mini-Split Installation

Professional installation of Fujitsu ductless systems with strategic placement and concealed refrigerant routing.

Mini-Split Repair

Expert diagnosis of remote control issues, drainage problems, and indoor unit malfunctions.

Mini-Split Maintenance & Tune-Ups

Regular filter cleaning, outdoor inspection, and performance testing to preserve efficiency.

Furnace Services in Altoona, PA by Keystone Heating and Air

mode_heat Furnace Services

Reliable heating for Pennsylvania winters with gas, propane, and oil furnace installation, repair, and maintenance.

Furnace Installation

Complete furnace installation including proper sizing, gas connections, venting, and safety controls.

Furnace Repair

Fast diagnosis of ignition failures, heat exchanger issues, blower problems, and thermostat malfunctions.

Furnace Maintenance

Annual tune-ups with burner cleaning, heat exchanger inspection, and combustion analysis.

Boiler Services in Altoona, PA by Keystone Heating and Air

heat_pump_balance Boiler Systems

Comfortable radiant heat with traditional and condensing boiler installation and service for Altoona homes.

We specialize in high-efficiency condensing boilers for maximum energy savings.

Boiler Installation & Replacement

Professional boiler installation with proper piping, venting, and zone control configuration.

Boiler Repair & Service

Expert diagnosis of circulator pump failures, pressure problems, and zone valve malfunctions.

Boiler Maintenance & Tune-Ups

Comprehensive annual service including burner maintenance, water treatment, and pressure testing.

Water Heater Services in Altoona, PA by Keystone Heating and Air

water_heater Water Heater Services

Endless hot water with Navien tankless systems or reliable Bradford White tank water heaters.

Tankless Water Heater Installation

Professional Navien tankless installation with proper venting and gas service for endless hot water.

Tankless Water Heater Repair & Maintenance

Service including heat exchanger descaling, error code diagnosis, and performance optimization.

Tank Water Heater Installation & Repair

Bradford White tank water heater installation and repair with proper connections and safety valves.

Indoor Air Quality Services in Altoona, PA by Keystone Heating and Air

aq_indoor Indoor Air Quality Services

Breathe cleaner air with advanced filtration, Reme Halo UV purification, and humidity control systems.

Air Filtration & Air Cleaners

High-efficiency filtration systems to remove airborne contaminants, allergens, and dust.

UV Light Systems

Reme Halo UV purification to reduce bacteria, viruses, and mold throughout your HVAC system.

Humidity Control

Whole-home humidifiers and dehumidifiers for optimal comfort and air quality year-round.

Mobile & Modular Home HVAC Services in Altoona, PA by Keystone Heating and Air

holiday_village Mobile & Modular Home HVAC Experts

Manufactured homes require specialized HVAC knowledge and equipment. Our technicians understand the unique challenges of mobile and modular home heating and cooling systems, from space constraints to ductwork configurations.

Mobile Home Services
Mobile Home Heating

Furnace and heat pump solutions designed for manufactured housing

Mobile Home AC

Air conditioning installation and repair for mobile home applications

Mobile Home Heat Pumps

Energy-efficient heat pump systems properly sized for manufactured homes

Commercial HVAC Services in Altoona, PA by Keystone Heating and Air

apartment Commercial HVAC Services

Keep your business comfortable with dependable commercial HVAC support throughout Altoona, Blair & Cambria Counties. We specialize in rooftop unit (RTU) installation, repair, and maintenance for light commercial spaces.

Commercial HVAC
Rooftop Unit Installation & Replacement

New RTU installs and replacements with proper sizing, crane coordination, curb/adapter fitment, and startup testing for reliable performance.

Rooftop Unit Repair & Service

Fast diagnostics and repairs for cooling/heating failures, airflow problems, electrical issues, controls, and rooftop leaks to get you back online quickly.

Rooftop Unit Maintenance

Scheduled RTU maintenance to reduce downtime, improve efficiency, and extend equipment life—ideal for offices, retail, and light industrial buildings.

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Fujitsu
Navien
Bradford White
Reme Halo

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Trusted, Local

Your Local HVAC Experts with 8+ Years of Experience

Keystone Heating and Air has served Altoona, Blair & Cambria County homeowners with 8+ years of experience built on honest service, quality workmanship, and genuine expertise in heating and cooling systems.

What Sets Us Apart

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8+ Years Experience

Nearly a decade serving Altoona area homes with reliable HVAC service

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Armstrong Dealer

Authorized dealer of premium Armstrong heating and cooling equipment

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Family Values

Family-focused service treating every customer like a neighbor

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We Service All Systems

We service gas, electric, oil, and geothermal heating and cooling systems

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Moblie Home Experts

Specialized HVAC solutions for manufactured and modular housing

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Our Motto: Quality Counts

Our motto guides every installation, repair, and service call

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Our Service Plans

Protect Your Investment with Regular Maintenance

Regular HVAC maintenance prevents unexpected breakdowns, maintains efficiency, and extends equipment life. Ask us about maintenance plans to keep your systems running reliably year-round.

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    Seasonal tune-ups for heating and cooling equipment

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    Priority scheduling and discounted repairs

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    Extended equipment life and warranty protection

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    Lower energy bills through optimized performance

Contact us to learn more about our maintenance plan options and find the right fit for your home.

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Keystone Heating and Air Maintenance Plan

Our Service Areas

Serving Altoona and Surrounding Blair & Cambria County Communities

We provide comprehensive HVAC services throughout Blair & Cambria County with fast response times and local expertise. Our technicians know the area and understand the specific heating and cooling challenges your home faces.

Primary Service Areas:
location_on Altoona
location_on Duncansville
location_on Holidaysburg
location_on Claysburg
location_on Ebensburg
location_on Roaring Spring

If you're in Blair or Cambria County—or a nearby community—contact us to confirm we serve your location.

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FAQs & More

Frequently Asked Questions

We recommend scheduling professional HVAC maintenance at least twice a year—once in spring before cooling season and once in fall before heating season. Regular tune-ups help your system run efficiently, catch small problems before they become expensive repairs, and extend the life of your equipment. Homeowners in Altoona, Holidaysburg, and throughout Blair & Cambria County benefit from consistent maintenance, especially given our cold Pennsylvania winters and humid summers. If you have a heat pump that runs year-round, seasonal maintenance is even more critical. Ask about our maintenance plans to make scheduling easier and keep your Armstrong or Fujitsu system running at peak performance.

Keystone Heating and Air is proud to install and service Armstrong Air heating and cooling equipment, known for its reliability and energy efficiency. We're also certified to install and maintain Fujitsu mini-split systems, perfect for room additions, garages, or homes without ductwork. For water heating, we install Navien tankless water heaters and Bradford White tank models. While these are our preferred brands for new installations, our experienced technicians can service most major HVAC brands across Altoona, Duncansville, Ebensburg, and surrounding areas. Whether you have an existing system that needs repair or you're ready for a new installation, we'll provide honest recommendations based on your home's needs and budget.

With proper maintenance, most HVAC systems last 15-20 years, though lifespan varies by equipment type and usage. Furnaces often last 15-20 years, while air conditioners and heat pumps typically run 10-15 years. Boilers can last 15-30 years with regular service, and tankless water heaters often exceed 20 years. However, Pennsylvania's climate—with cold winters putting heavy demands on heating systems—can impact longevity. Regular tune-ups, prompt repairs, and changing filters help maximize your investment. If your system is over 10 years old and requiring frequent repairs, it may be time to consider replacement. Our team provides honest assessments to help Altoona-area homeowners make informed decisions about repair versus replacement.

Yes, Keystone Heating and Air understands that heating and cooling emergencies don't wait for business hours. When your furnace quits on a frigid January night or your AC fails during a summer heat wave, we're here to help. We provide emergency HVAC service to Altoona, Holidaysburg, Roaring Spring, Claysburg, and throughout our service area. Call us at 814-515-6715 when you need urgent repairs. Our goal is to restore comfort to your home as quickly as possible, whether it's a failed furnace, broken heat pump, or water heater emergency. Quality counts with Keystone, even in the middle of the night.

Several factors help determine whether to repair or replace your HVAC system. Consider the age of your equipment—if it's over 10-12 years old and needs significant repairs, replacement often makes more financial sense. Frequent breakdowns, rising energy bills, and uneven heating or cooling are signs your system is struggling. We use the "50% rule" as a guideline: if repair costs exceed 50% of replacement cost and your system is past mid-life, replacement is usually smarter. For Altoona homeowners, we also consider factors like system efficiency, refrigerant type (older R-22 systems are expensive to repair), and whether your current equipment is properly sized. We'll always provide honest recommendations and explain your options clearly, so you can make the best decision for your home and budget.

Proper HVAC sizing is critical for comfort, efficiency, and system longevity—bigger isn't always better. The right size depends on your home's square footage, insulation levels, window types, ceiling height, and how well your home is sealed. Altoona's climate, your home's sun exposure, and the number of occupants also play a role. An oversized system will short-cycle (turn on and off frequently), waste energy, and fail to properly dehumidify. An undersized system will run constantly and struggle to maintain comfort. We perform detailed load calculations following industry standards to determine the exact heating and cooling capacity your home needs. Whether you're in a compact Duncansville bungalow or a spacious Holidaysburg colonial, we'll size your Armstrong or Fujitsu system perfectly for your space.

Absolutely. Keystone Heating and Air has extensive experience servicing and repairing oil-fired furnaces and boilers, which are common throughout central Pennsylvania. Oil heating systems require specialized knowledge and regular maintenance to run safely and efficiently. We perform thorough inspections, cleanings, and tune-ups to keep your oil furnace or boiler operating reliably through harsh Altoona winters. Our technicians are trained to work with oil burners, check combustion efficiency, clean heat exchangers, and address issues unique to oil-fired equipment. If you're considering converting from oil to a more efficient heating system like a heat pump or gas furnace, we can discuss your options and help you make an informed choice.

Tankless water heaters offer several advantages over traditional tank models. They provide endless hot water on demand—perfect for larger families or homes with high hot water usage. Because they only heat water when you need it, tankless units are significantly more energy-efficient, potentially reducing your water heating costs by 20-30%. They're also compact, freeing up valuable space in your basement or utility room. Navien tankless water heaters, which we install throughout the Altoona area, typically last 20+ years with proper maintenance—about twice as long as tank water heaters. While the upfront cost is higher, many homeowners find the energy savings, space savings, and unlimited hot water make tankless an excellent investment. We can help you determine if tankless is right for your Ebensburg or Claysburg home based on your family's hot water needs.

Yes! Keystone Heating and Air specializes in heating, cooling, and water heating services for mobile and modular homes throughout Blair & Cambria County. Mobile and modular homes have unique HVAC requirements—different ductwork configurations, specific equipment sizes, and installation considerations compared to traditional stick-built homes. We install and service heating systems, air conditioners, heat pumps, and water heaters designed to work efficiently in manufactured housing. Whether you need a furnace replacement, AC repair, or are upgrading to a more efficient heating system in your Roaring Spring or Duncansville mobile home, our team has the expertise to handle it correctly. We understand the challenges mobile homeowners face and provide reliable, affordable solutions.

Indoor air quality (IAQ) systems can dramatically improve your family's health and comfort, especially important since we spend most of our time indoors during Pennsylvania winters. Air filtration systems and air cleaners remove dust, pollen, pet dander, and other airborne particles that trigger allergies and asthma. UV lights like the Reme Halo eliminate airborne bacteria, viruses, mold spores, and odors—particularly valuable during cold and flu season. Whole-home humidifiers combat winter's dry air that causes dry skin, static electricity, and respiratory discomfort, while dehumidifiers prevent summer moisture problems that lead to mold growth. Many Altoona-area families notice fewer allergy symptoms, better sleep, and improved respiratory health after installing IAQ solutions. We'll assess your home's specific air quality challenges and recommend the right combination of solutions for your family.

Keystone Heating and Air proudly serves Altoona and surrounding Blair & Cambria County communities. Our primary service area includes Holidaysburg, Duncansville, Ebensburg, Claysburg, and Roaring Spring. We're locally based at 223 Bell Avenue in Altoona, which means faster response times and personalized service for our neighbors throughout central Pennsylvania. Whether you need emergency furnace repair in Holidaysburg, a new heat pump installation in Duncansville, or HVAC maintenance in Ebensburg, we're close by and ready to help. Our technicians know the area, understand local homes and their unique heating and cooling challenges, and are committed to keeping our community comfortable year-round.

Quality counts with Keystone. With 8 years of dedicated service to the Altoona area, we've built our reputation on honest recommendations, skilled workmanship, and reliable service. We're not the biggest HVAC company, but that's by design—we're small enough to know our customers by name and provide personalized attention to every job. We install premium Armstrong Air and Fujitsu equipment backed by excellent warranties, and our technicians are trained to service all major brands. As a locally owned business, we live and work in the communities we serve, so your satisfaction directly impacts our reputation with friends and neighbors. We offer financing options to make comfort affordable, and we stand behind our work. When you choose Keystone, you're choosing a company that treats your home like our own.

A comprehensive HVAC maintenance visit from Keystone includes a thorough inspection and tune-up designed to keep your system running efficiently and catch potential problems early. For heating systems, we inspect the heat exchanger, check gas connections and combustion, test safety controls, clean burners, measure temperature rise, check and adjust the thermostat, inspect the blower motor and belts, and change or clean filters. For cooling systems, we check refrigerant levels, inspect electrical connections, clean condenser coils, test capacitors and contactors, lubricate moving parts, check condensate drain, and verify proper airflow. We also provide a detailed report of our findings and recommendations. Regular maintenance helps prevent unexpected breakdowns during extreme weather, extends equipment life, and keeps your Altoona-area home comfortable all year. Ask about our maintenance plans for priority scheduling and service discounts.

Yes, Keystone Heating and Air offers flexible financing options to make your heating, cooling, and water heating projects more affordable. We understand that a new furnace, AC system, or major repair isn't always in the budget, especially when it's an unexpected emergency. Our financing programs allow you to get the comfort and efficiency you need now and pay over time with manageable monthly payments. Whether you're replacing an aging boiler, upgrading to a high-efficiency heat pump, or installing a Navien tankless water heater in your Holidaysburg or Claysburg home, financing can help you move forward without delay. Contact us at 814-515-6715 to discuss financing options and find a payment plan that works for your budget. Quality heating and cooling shouldn't be out of reach—we'll help you find a solution.

At Keystone Heating and Air, we understand that comfort can't wait, especially during Pennsylvania's temperature extremes. We prioritize quick response times for all service calls and offer emergency service when you need it most. For routine service requests, we typically schedule appointments within 1-2 business days. Emergency calls—like a furnace failure on a freezing night or an AC breakdown during a heat wave—receive priority response. Our Altoona location means we can reach customers in Holidaysburg, Duncansville, Ebensburg, Claysburg, and Roaring Spring quickly. When you call 814-515-6715, you'll speak with our team directly (not an answering service), and we'll get a qualified technician to your home as fast as possible. Our goal is to restore your comfort and peace of mind without unnecessary delays.

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Ready For Reliable Comfort?

Whether you need emergency repairs, system replacement, or professional maintenance, our experienced team is ready to help with quality service you can trust.

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Why Choose Keystone Heating and Air?
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Licensed & Insured

Fully licensed HVAC professionals protecting your home and investment.

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Prompt, Trusted Service

Fast response times and clear communication from call to completion.

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Armstrong Proteam Dealer

Professional installation and repairs focused on performance and reliability.

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Honesty & Transparency

Upfront quotes with transparent options—no surprises.

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Expert Service & Technicians

Authorized equipment solutions with strong warranties and support.

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Local, Family Owned

Neighbor-first service with straightforward recommendations.

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Quality Installations

We diagnose and repair most major brands and system types.

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A Team That's Here for You

Clear options, helpful answers, and workmanship you can rely on.

Special Offers

Save on Your Next HVAC Project

Take advantage of current promotions, manufacturer rebates, and seasonal specials on heating and cooling equipment. Contact us today to learn about available savings on Armstrong systems and energy-efficient upgrades.

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Tune-up Specials

Keep your system running efficiently with our comprehensive maintenance service

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New System Rebates

Ask about available manufacturer rebates on qualifying Armstrong equipment

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Referral Program

Refer a friend and both receive special savings on future services

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