This business is Trusted — customers consistently rate it 4.7★ across 478 reviews, indicating reliable, quality service.
A 4.7★ rating from 478 reviews indicates strong quality — continued review growth will further confirm reliability.
Monday: Open 24 hours
Tuesday: Open 24 hours
Wednesday: Open 24 hours
Thursday: Open 24 hours
Friday: Open 24 hours
Saturday: Open 24 hours
Sunday: Open 24 hours
Customers frequently praise quality installations, energy-efficient recommendations, and responsive follow-up.
Scheduling during peak season (summer/winter) can take time — book ahead.
Homeowners looking for a trusted HVAC provider for installs or repairs.
Review Rank Score (0–100) blends a Bayesian-adjusted rating, review volume, recent sentiment, and rating consistency. It's a predictive reputation estimate — not a replica of Google or Yelp's ranking.
Great experience all around. From scheduling, service and repair, from sales to installation, everyone was super courteous, responsive and professsional. Pricing was fair and without high pressure. I was given options and information to choose the correct furnace. Furnace was installed next day. This company and the people who work for it (Jason, Jason and Victoria are who I worked with) are truly outstanding! How great to find an ethical HVAC company. A+++++++++
Wow, Nelson Comfort used to be a great company…National now gouges you…we bought our systems from Nelson in 2016/2017..great service, good people. National came by now to fix an issue w our thermostat..walked through the door at 10:56..left at 11:12…$249 was the bill for literally 15 minutes of work. Did not realize HVAC contractors now charge medical rates. I’d highly suggest using another company if you need a new system or service work. Shame on National!!
See why this business ranks here and how customers describe it. Get a breakdown of your Smart Score and what it would take to reach the next trust tier.
Get Ranking Report — $19Reports do not affect rankings.
Data sourced from Google Places API · ReviewRank Smart Score
Rankings are based on public review signals only. No paid placements.
Chad arrived early, which I appreciate, and inspected my gas boiler. He verified that the system was working well but needed a few adjustments to temperature, pressure and bled air in the register lines. I was very pleased.
They always do a great job. I have been using them for years and have always been satisfied. Most recently we had Ethan do our service and I'm very pleased with his work. Would definitely recommend him and the company.
When they were Nelson you could trust them. But when they switched to National the rates skyrocketed and the service quality went in the toilet. Gave up on them after they failed to properly diagnose an issue with our AC then tried to sell us a new one because of their “mistake.” Not going to make any claims I can’t prove. Suffice to say we’re done with them.