National Ottawa HVAC

About

National Ottawa HVAC has been proudly serving the Ottawa, Ontario area since 1977. Our team of licensed technicians provides expert heating, cooling, and ventilation services for both residential and commercial properties. We are committed to delivering top-quality workmanship, transparent pricing, and exceptional customer service on every job.

Photos

Services

• AC Installation
  CAD 326–454 · ESTIMATE
• Boiler Services
  CAD 345–584 · ESTIMATE
• Indoor Air Quality
  CAD 308–739 · ESTIMATE
• Preventive Maintenance
  CAD 314–716 · ESTIMATE
• Ventilation
  CAD 157–618 · ESTIMATE

Brands We Work With

Credentials

• License: LIC-55773-CA Verified
• Insurance: Verified
• Background check: Passed
• Employees: 51-100
• Service radius: 79 km

Reviews (17)

• ★★★★★
  Best in town

  National Ottawa HVAC did an amazing job. The technician arrived on time, was very knowledgeable, and fixed the issue quickly. Fair pricing too.

• ★★★★★
  Outstanding service

  Outstanding customer service from start to finish. National Ottawa HVAC went above and beyond to make sure we were comfortable.

• ★★★★★
  Impressed

  We have used National Ottawa HVAC for years and they never disappoint. Honest pricing, quality work, and they always clean up after themselves.

• ★★★☆☆
  Top notch

  We have used National Ottawa HVAC for years and they never disappoint. Honest pricing, quality work, and they always clean up after themselves.

• ★☆☆☆☆
  Would use again

  Called National Ottawa HVAC for an emergency repair and they were here within an hour. Professional, courteous, and got everything working again.

• ★★★★★
  Five stars

  National Ottawa HVAC installed a new furnace for us last month. Great communication throughout the process and the crew was very respectful of our home.

• ★★☆☆☆
  Excellent work

  After getting quotes from several companies, we went with National Ottawa HVAC and glad we did. Best price and best service.

• ★★★★☆
  Would use again

  National Ottawa HVAC diagnosed and fixed our heating issue when two other companies couldn't figure it out. True experts.

• ★★★★★
  Quality workmanship

  We have used National Ottawa HVAC for years and they never disappoint. Honest pricing, quality work, and they always clean up after themselves.

• ★★★★☆
  Fair pricing

  Very happy with the service from National Ottawa HVAC. They replaced our entire HVAC system and the difference is night and day. Highly recommend.

• ★★★★★
  Very professional

  Called National Ottawa HVAC for an emergency repair and they were here within an hour. Professional, courteous, and got everything working again.

• ★★★☆☆
  Great service!

  We have used National Ottawa HVAC for years and they never disappoint. Honest pricing, quality work, and they always clean up after themselves.

• ★★★★★
  Would use again

  National Ottawa HVAC did an amazing job. The technician arrived on time, was very knowledgeable, and fixed the issue quickly. Fair pricing too.

• ★☆☆☆☆
  Quality workmanship

  After getting quotes from several companies, we went with National Ottawa HVAC and glad we did. Best price and best service.

• ★★★★★
  Highly recommend

  Outstanding customer service from start to finish. National Ottawa HVAC went above and beyond to make sure we were comfortable.

• ★★★★★
  Excellent work

  National Ottawa HVAC did an amazing job. The technician arrived on time, was very knowledgeable, and fixed the issue quickly. Fair pricing too.

• ★★★★★
  Great service!

  After getting quotes from several companies, we went with National Ottawa HVAC and glad we did. Best price and best service.