FREE ESTIMATES ON ALL HVAC SERVICES IN THE NIAGARA REGION
Depend on your heating, cooling and indoor air quality when you update your old systems or install new energy-saving equipment with Paterson-Lange Heating & Air, serving residential and commercial clients in the Niagara Region since 1994. Contact our team of technicians for a free estimate on your new or existing site for sales, installation and servicing of:
- central air conditioning
- furnaces
- boilers
- Indoor Air Quality Systems
- Ductwork
- Heat Recovery Ventilators
- Fireplaces
- Tankless Water Heaters


How We Work in Your Home or Business
At Paterson-Lange, our approach to every job is one of care, clear communication, and consideration for your home or business. Our technicians take time to learn about your space and then provide options in plain language so you can make informed choices. Our focus is always on doing it right the first time; with careful air conditioning and heating installation techniques that minimize disruption.
Energy Efficiency and Air Quality
Let your clients and employees breathe easily at your place of business. Help your children avoid colds and asthma attacks at home. Have the HVAC experts of Paterson-Lange show you how to improve the quality of the air you breathe indoors every day. Also ask how we can increase your energy efficiency, saving you money while gaining maximum comfort.
Air Conditioning Services in Welland provide equipment designed to match the unique layout and comfort needs of each home, while our heating services Niagara team examines your entire heating system, from furnace to ductwork, for efficiency improvements and hot or cold spots reduction. If you require furnace installation services we can help select equipment which matches both your budget and long-term goals before setting it up to ensure safe, reliable operation.
We treat your property as if it were our own, protecting floors, furniture, and landscaping while we work. After each job we walk you through what was completed, how to use your new system, and ongoing maintenance expectations. Our aim is to earn your trust with honest advice, quality work and service that stands the test of time.
Servicing and maintenance for all makes and models
Paterson-Lange services all makes and models of heating and cooling systems, and we always perform repairs and maintenance with factory-made new parts, never refurbished ones. Plus, Paterson-Lange is an authorized dealer for respected major manufacturers. Call us for reliable repairs and updates on your boiler, furnace or central air conditioning.










