HVAC Companies Londonderry

Top AC and Heating Services in Londonderry

Get 3 FREE Heating and Cooling Services quotes for your project today! Compare profiles, reviews, accreditations, portfolio, etc... and choose the best offer.

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  • Your Duct Guy of Philadelphia Since 2006
    4.7
    Philadelphia, US

    Your Duct Guy is a family-owned and operated business dedicated to providing high-quality HVAC services since 2006. We specialize in air duct cleaning, dryer vent cleaning, HVAC new installations, A/C cleaning and maintenance, air duct sealing, and maid services for both residential and commercial clients. Our team of highly trained and experienced technicians is committed to delivering 100% customer satisfaction on every project. We understand the importance of a clean and healthy indoor environment, and we strive to exceed your expectations with our professional and reliable service. Whether you need a simple air duct cleaning or a complete HVAC system installation, Your Duct Guy is here to help. We offer flat rates and online booking for your convenience. Contact us today for a free estimate!

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  • Stahl Plumbing, Heating & Air Conditioning, Inc.
    4.3
    1924 McCague Street, Pittsburgh, 15218, US

    Since 1950, Stahl Plumbing, Heating & Air Conditioning has been committed to providing Pittsburgh residents and businesses with reliable products & services at affordable prices. Proudly employee-owned since 2022, our team continues the legacy of 24/7 services for our community. Our master plumbers and technicians have extensive years of experience in these industries, and are ready to support you during your next project, replacement, maintenance, or emergency. Stahl also specializes in customer satisfaction. With Stahl, you will always receive honest and cost-effective solutions for your products and services. When our Plumbing and HVAC specialists visit your residence or business, we not only provide you with solutions, but also take time to provide you with useful information about the work that was completed. For Plumbing or HVAC issues, our team members describe the problem as well as detail what can be done to prevent it from happening in the future. We feel it is important to inform and educate our customers so that you understand how issues arise and the steps that our team has taken to address the issue. Stahl Plumbing, Heating & Air Conditioning is a true 24/7 plumbing service company in the Pittsburgh and Allegheny County area, with live response and rapid dispatch around the clock. We understand how unpredictable and stressful these issues can be, and we want to help you when they arise. Since our start in 1950, we have assisted thousands of customers who needed our services late at night, early in the morning, and over holidays. We are available to support you at any time, and your complete satisfaction is our goal.

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  • Engineered Air
    5
    Pittsburgh, US

    Welcome to Engineered Air, North America's leading manufacturer of made-to-order heating, ventilating, air conditioning, refrigeration, energy recovery equipment and clean room technologies. We are pleased to announce that Engineered Air has acquired the assets of Edwards Coils Corporation, and are excited to add this proven technology to our existing family of products. Learn about our company, products, and contact us to find a sales office near you.

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  • Leggett Inc.
    4.9
    1989 Hummel Ave., Camp Hill, 17011, US

    The Perfect Temperature for Little Toes & Big Work Loads HEATING & COOLING FOR HOME HEATING & COOLING FOR BUSINESS Current Specials & Deals Want to save more money? Residential Heating and Cooling Solutions Is your home a comfortable temperature? Water Treatment Is the water from the sink safe? Plumbing Is your faucet leaking? Preventative Maintenance Would you like peace of mind? Licensed Electricians Is your electric panel safe? Providing Comfort for Homes & Businesses Since 1966 Charles and Ann Leggett started business back in 1966, out of their home on Apple Tree Road in Camp Hill. Leggett Inc. is family owned and operated. We are committed to protecting your biggest investment, your home, from top to bottom. Today Leggett Inc. specializes in servicing plumbing, electrical, heating, cooling, backup power, and bathroom remodeling solutions for residential and light commercial offices, warehouses, etc. Turn to the experts at Leggett Inc. because when you hire us, you get a true professional at the trade. Giving you Peace of Mind at a Fair Price LEARN MORE ABOUT US VIEW OUR NEWSLETTER Above and Beyond The technician noticed a leak into the basement and investigated. Appeared to be from dishwasher. When plumber arrived, he looked under dishwasher and advised re probable cause and shut water off. This was above and beyond their contract for A/C installation and greatly appreciated. VIEW ALL TESTIMONIALS Reviews When You Walk in Your Door to Outside Temps ... Contact Us! We always answer the phone! Call us or fill out the form below and someone will be in touch with you soon.

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  • United Refrigeration Inc.
    4.9
    Harrisburg, US

    URI Events is a leading provider of refrigeration and HVAC equipment, offering a wide range of products and services to meet the needs of commercial and residential customers. With a commitment to quality, reliability, and customer satisfaction, URI Events has established itself as a trusted partner for businesses and homeowners alike.

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  • Signature HVAC
    4.9
    Philadelphia, US

    Customer CARE is our Signature service. Your Trusted HVAC & Plumbing Company. Let Us Help you in these services: Heating, Air Conditioning, Plumbing, Geothermal. Let’s Get Started.

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  • HVAC SERVICE NYC
    110 7th Ave 4th Fl, N/A, New York, 10011, US

    HVAC SERVICE NYC has been serving the New York City area for many years, providing reliable and affordable heating and air conditioning services. We are dedicated to keeping our customers comfortable year-round. Our team of experienced technicians is committed to delivering high-quality workmanship and exceptional customer service. We pride ourselves on our transparent pricing, upfront estimates, and satisfaction guarantee. Whether you need HVAC repair, maintenance, installation, or replacement, we have the expertise and resources to meet your needs. We are a family-owned and operated business with a strong reputation for integrity and reliability. We are proud to be a trusted partner for homeowners and businesses throughout the New York area.

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  • ARROW HVAC LLC
    4
    Franklin, US

    ARROW HVAC, LLC. is a full-service residential and commercial heating and cooling contractor located in Franklin, Wisconsin. We offer a 24/7/365 emergency service to make sure that you aren’t left without proper heating or cooling at the very worst possible time. Contact or call us to take advantage of our high-quality and affordable services that are guaranteed to give you a peace of mind.

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  • Interstate Air Conditioning & Heating
    4.4
    701 Lehigh Avenue, Union, 07083, US

    Interstate Air Conditioning & Heating is a family-owned and operated business serving the New York City metropolitan area since 1978. We specialize in the installation, maintenance, repair, and replacement of residential and commercial HVAC systems. Our team of highly trained and certified technicians is dedicated to providing exceptional service and ensuring your complete satisfaction. We are EPA-certified and extensively trained to provide the best service in the HVAC industry. We take pride in our commitment to quality workmanship, using the highest quality materials and adhering to strict industry standards. From the way we insulate our ductwork to the running of the copper refrigeration pipe, our quality is like no other. We take as much time as needed to ensure that your job is done right – on time and on budget. We back this up with a satisfaction guarantee: our job isn’t done until you’re completely satisfied.

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  • Smurl HVAC, LLC
    4.6
    1111 Stafford Avenue, Scranton, 18505, US

    Smurl HVAC, LLC is a family-owned and operated business serving the Scranton, Wilkes-Barre, and Dunmore areas for over 30 years. We specialize in all aspects of mechanical contracting, including new construction, and are the area's leader in ductless air conditioning installations. Our team is fully licensed, insured, EPA certified, and R410 refrigerant certified. We handle everything from servicing an AC system to designing and engineering a new building. We accept Master Card and Visa and are a member of the Better Business Bureau with an A+ rating! We install and service a wide range of systems, including natural gas and propane, steam boilers, hot water boilers, warm air furnaces and ductwork, hot water heaters, space heaters, fireplace inserts, gas lines, electric heat pumps, ductless air conditioning, central AC and ductwork, baseboard, hot water heat, and electric heat. We pride ourselves on providing modern work done the old-fashioned way, with a focus on customer satisfaction.

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Frequently Asked Questions About HVAC Companies

Find answers to common questions about HVAC services, finding contractors, and getting the best HVAC systems for your needs.

What should I look for when hiring an AC installer?

When hiring an AC installer, consider these key factors:
  • Experience and Expertise: Look for installers with experience and a good understanding of AC systems.
  • Licensing and Insurance: Make sure the installer is licensed and insured to work in your area.
  • Reputation and Reviews: Check online reviews and ratings from other customers.
  • Detailed Quotes: Get itemized quotes outlining all costs associated with the installation.
  • Warranties: Inquire about warranties on equipment and labor.
  • References: Ask for and check references from past customers.
  • Communication: Choose an installer who communicates clearly and promptly.
By carefully evaluating these aspects, you can choose a qualified and trustworthy professional for your AC installation.

What is a ductless mini-split system?

A ductless mini-split system is a type of HVAC system that doesn't require ductwork. It consists of an outdoor unit (compressor/condenser) and one or more indoor units (air handlers) connected by refrigerant lines and electrical wiring. Each indoor unit cools or heats a specific zone or room, providing individual temperature control. Ductless mini-splits are more energy-efficient than traditional ducted systems and are a good option for homes where adding ductwork is impractical.

What are the most common HVAC problems?

Common HVAC problems include:

  • AC not cooling: Refrigerant leaks, compressor issues, or thermostat problems.
  • Furnace not heating: Pilot light or ignition control issues, blower motor problems, or clogged filters.
  • Uneven temperatures: Ductwork leaks, inadequate insulation, or faulty thermostats.
  • Poor air quality: Dirty air filters, mold growth in ductwork, or inadequate ventilation.
  • Strange noises: Unusual sounds from the system can indicate a variety of problems with different components.
  • High energy bills: Inefficient systems, ductwork leaks, or improper thermostat settings.
If you're experiencing any of these issues, contact a qualified HVAC technician for diagnosis and repair.

How do I choose the right size AC unit for my home?

Choosing the right AC unit size is essential for efficient cooling. An undersized unit won’t cool your home adequately, while an oversized unit will cycle on and off frequently, wasting energy and leading to premature wear and tear. A qualified HVAC technician will calculate the appropriate size AC unit for your home based on factors like:
  • Your home's square footage
  • Your local climate
  • Insulation levels
  • Window efficiency
  • Number of occupants
This calculation involves determining your home's cooling load, typically measured in BTUs (British Thermal Units). Don’t rely on estimates or guesswork; consult with an HVAC professional to ensure your new AC unit is properly sized for your specific needs.

What should I look for when hiring an AC installer?

When hiring an AC installer, consider these key factors:
  • Experience and Expertise: Look for installers with experience and a good understanding of AC systems.
  • Licensing and Insurance: Make sure the installer is licensed and insured to work in your area.
  • Reputation and Reviews: Check online reviews and ratings from other customers.
  • Detailed Quotes: Get itemized quotes outlining all costs associated with the installation.
  • Warranties: Inquire about warranties on equipment and labor.
  • References: Ask for and check references from past customers.
  • Communication: Choose an installer who communicates clearly and promptly.
By carefully evaluating these aspects, you can choose a qualified and trustworthy professional for your AC installation.

What is a ductless mini-split system?

A ductless mini-split system is a type of HVAC system that doesn't require ductwork. It consists of an outdoor unit (compressor/condenser) and one or more indoor units (air handlers) connected by refrigerant lines and electrical wiring. Each indoor unit cools or heats a specific zone or room, providing individual temperature control. Ductless mini-splits are more energy-efficient than traditional ducted systems and are a good option for homes where adding ductwork is impractical.

What are the most common HVAC problems?

Common HVAC problems include:

  • AC not cooling: Refrigerant leaks, compressor issues, or thermostat problems.
  • Furnace not heating: Pilot light or ignition control issues, blower motor problems, or clogged filters.
  • Uneven temperatures: Ductwork leaks, inadequate insulation, or faulty thermostats.
  • Poor air quality: Dirty air filters, mold growth in ductwork, or inadequate ventilation.
  • Strange noises: Unusual sounds from the system can indicate a variety of problems with different components.
  • High energy bills: Inefficient systems, ductwork leaks, or improper thermostat settings.
If you're experiencing any of these issues, contact a qualified HVAC technician for diagnosis and repair.

How do I choose the right size AC unit for my home?

Choosing the right AC unit size is essential for efficient cooling. An undersized unit won’t cool your home adequately, while an oversized unit will cycle on and off frequently, wasting energy and leading to premature wear and tear. A qualified HVAC technician will calculate the appropriate size AC unit for your home based on factors like:
  • Your home's square footage
  • Your local climate
  • Insulation levels
  • Window efficiency
  • Number of occupants
This calculation involves determining your home's cooling load, typically measured in BTUs (British Thermal Units). Don’t rely on estimates or guesswork; consult with an HVAC professional to ensure your new AC unit is properly sized for your specific needs.