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National Technical Institute

Updated 2026-09-04 · 3,826 reviewed · 517 listed · Scored from 221 Google reviews · How we rank ›

4.8(221) 86 composite score See reviews on Google ✓ Google-verified
AC Repair & Installation
National Technical Institute
Location
Diablo Business Center, Phoenix
Service
AC Repair & Installation
Reviews
221
Best for
Career changers seeking vocational training in HVAC, electrical, or plumbing trades while keeping a job.

Business data from Google Business Profile, checked 2026-09-04. Facts from the business's own website were fetched 2026-08-04.

What do customers say?

Students consistently praise NTI's instructors, particularly those teaching HVAC and electrical trades, for real-world knowledge and patient teaching. The school offers flexible scheduling and payment plans, with many graduates reporting successful job placements within months. However, several reviewers raised concerns: one paid $7,000 but found the plumbing curriculum light on hands-on work; another faced post-graduation access lockouts despite being promised lifetime course access; and a third disputed billing and collection practices after minimal engagement. The gap between what some felt was promised and what was delivered remains a point of friction.

Praised for
  • knowledgeable instructors
  • hands-on training
  • flexible scheduling
  • affordable pricing
  • job placement support
Watch-outs
  • limited practical curriculum in some programs
  • access restrictions after graduation
  • unclear contract and refund policies
  • employer unfamiliarity with school credentials
skilled-techniciansfair-pricingfriendly-staffquality-installationresponsive
Best for: Career changers seeking vocational training in HVAC, electrical, or plumbing trades while keeping a job.
Think twice if: Ask about post-graduation course access terms and request a clear, written refund and contract policy before enrolling.

What stands out?

  • Named instructors with real field experience
  • Flexible self-paced and evening schedules
  • Hands-on lab training included
  • Starter tool bag provided after graduation

Worth knowing

  • Named instructors praised: Marco (HVAC), Albert Ortega (plumbing), Bruno (HVAC), Mark, Scott, Ralph (electrical)
  • Starter tool bag included after graduation
  • 4-5 month completion timeline reported for HVAC-R
  • Classes available in Spanish for electrical program
  • 16-week electrical course option with weekly exams
  • Four hours of practical training per week in some programs

How it compares

  • Rated 4.8 against a 4.69 average across the 457 ac repair & installation businesses listed here.
  • Has more Google reviews than 79% of the businesses in this directory.

How the score was calculated

Ranking Method
Star rating 86
Review volume 100
Review recency 100
Review sentiment 64
Profile completeness 100
Verification 30

Rating breakdown

5
205
4
6
3
1
2
1
1
8

Frequently asked questions

How long does it take to graduate?
HVAC and Electrical programs typically run 4-5 months or 16 weeks, depending on format. Exact duration varies by program.
Do you offer classes in Spanish?
Yes, the electrical course is offered in Spanish, with video instruction and four hours of practical training per week.
What comes with the training?
Graduates receive a starter tool bag and hands-on lab access during the program. However, confirm post-graduation course access terms in writing before enrolling.
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Last updated 2026-09-04