Company · HVAC air conditioning contractor

National HVAC Service_

As of 2 November 2026, National HVAC Service has 8 open roles (2 new in 30 days), its skilled trades and field service team is hiring most, and its postings name Microsoft Excel, Microsoft Office and Microsoft Outlook as the tools the team works in.

As of 2 November 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.

Nashville, United States201-500 employees10M-50M revenue, est.B2B, B2Cnationalhvacservice.com ↗LinkedIn ↗
Headquarters
Nashville, Tennessee, United States
Employees
201-500 employees (linkedin)
Sells to
commercial, industrial and manufacturing, mission critical facilities
Certifications on site
Site languages
EN
Career system
Paylocity
8open roles · 2 new in 30 days
5tools named in postings
United Stateshiring locations
0change signals read in postings
02 — What they do, whom they sell to, who else does it

National HVAC Service in one screen

Read from nationalhvacservice.com: what the company does, the customers it names, the buyers we can actually see, and the companies that sell the same thing.

What National HVAC Service does

National HVAC Service is a service company that provides heating, air conditioning and energy solutions for commercial, industrial, government and other facility customers. Its offerings include emergency repair, planned maintenance, system design and installation, retrofits, operational assessment, indoor air quality and energy optimization. It serves clients across Arkansas, Tennessee and Delaware.

emergency repairplanned maintenancedesign build retrofitoperational assessmentindoor air qualityenergy optimizationthermaclear service
Whom it sells to

Named on the site: commercial, industrial and manufacturing, mission critical facilities, research and development, utilities, healthcare, education, government, mixed use and retail, custom use, commercial facilities, healthcare and education, government agencies.

Who else sells this

Nearest companies by what they do, sell and whom they serve, 51+ employees. 577 scored.

NAC Mechanical ServicesUnited States · 51-200 employeesCommercial Express HVACUnited States · 51-200 employeesStar ServiceUnited States · 201-500 employeesTeam ServicesUnited States · 51-200 employeesArmistead Mechanical ServicesUnited States · 51-200 employeesHoffman Mechanical SolutionsUnited States · 51-200 employees
03 — Tech stack, with the evidence

What National HVAC Service says it runs

Tools named in the company's own postings as the team's systems, with the sentence that says so. What the website and DNS show is listed separately.

Microsoft ExcelCustomer service & success · medium confidence · 1 posting
• Proficiency in Microsoft Office Suite (Excel, Word, Outlook, Teams, etc.)
Service Coordinator · first seen 2026-09-21
Microsoft OfficeCustomer service & success · medium confidence · 1 posting
• Proficiency in Microsoft Office Suite (Excel, Word, Outlook, Teams, etc.)
Service Coordinator · first seen 2026-09-21
Microsoft OutlookCustomer service & success · medium confidence · 1 posting
• Proficiency in Microsoft Office Suite (Excel, Word, Outlook, Teams, etc.)
Service Coordinator · first seen 2026-09-21
Microsoft TeamsCustomer service & success · medium confidence · 1 posting
• Proficiency in Microsoft Office Suite (Excel, Word, Outlook, Teams, etc.)
Service Coordinator · first seen 2026-09-21
Microsoft WordCustomer service & success · medium confidence · 1 posting
• Proficiency in Microsoft Office Suite (Excel, Word, Outlook, Teams, etc.)
Service Coordinator · first seen 2026-09-21
On the website or in DNS

Vendors whose code loads on nationalhvacservice.com or whose records sit in its DNS. Page plumbing (libraries, fonts, consent banners) is left out.

HubSpotseen on nationalhvacservice.comappleseen on nationalhvacservice.com
azure_dnsseen on nationalhvacservice.com
constant_contactseen on nationalhvacservice.com
Microsoft 365seen on nationalhvacservice.com
Microsoft Entra IDseen on nationalhvacservice.com
microsoft_intuneseen on nationalhvacservice.com
microsoft_teamsseen on nationalhvacservice.com
mimecast_dmarc_analyzerseen on nationalhvacservice.com
valimailseen on nationalhvacservice.com
04 — Hiring

8 open roles, 4 opened in 90 days

Read hourly from the company's career system. Open roles and new roles in the last 30 days, by team. Companies hiring skilled trades and field service in United States →

05 — Signals

What is changing, read from the postings

Intents are events the employer states about itself, each with the sentence and the posting it came from.

No change signals read in the current postings.

Decision makers at National HVAC Service, with verified e-mails, and every change the moment it is posted.

Sales, marketing and IT leaders by function. Add National HVAC Service to a monitor and get a webhook when a role opens, a tool appears or a signal is read.

Free plan: 1,000 records, no card. The first 20 are above; e-mails are verified at the mail server when you open them.

06 — Lookalikes

Companies like National HVAC Service

Nearest by what they do, what they sell and whom they sell to, 51+ employees. 6 of 577 scored.

NAC Mechanical ServicesHVAC air conditioning contractor · United States51-200 employees
Commercial Express HVACHVAC air conditioning contractor · United States51-200 employees
Star ServiceHVAC air conditioning contractor · United States201-500 employees
Team ServicesHVAC air conditioning contractor · United States51-200 employees
Armistead Mechanical ServicesHVAC air conditioning contractor · United States51-200 employees
Hoffman Mechanical SolutionsCommercial refrigeration contractor · United States51-200 employees
07 — Profile

From the company's own website

Legal nameNational HVAC Service
IndustryProperty & construction · HVAC air conditioning contractor
Offeringsemergency repair · planned maintenance · design build retrofit · operational assessment · indoor air quality · energy optimization · thermaclear service
Target customerscommercial · industrial and manufacturing · mission critical facilities · research and development · utilities · healthcare · education · government · mixed use and retail · custom use · commercial facilities · healthcare and education · government agencies
Geographic scopenational · also United Kingdom
Reviews found
Public contact points0 role addresses · 3 phone numbers
Pages readpricing, home, careers
Datescrawled 2026-09-07 · profiled 2026-09-12 · hiring built 2026-10-27
Cite this

Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.

National HVAC Service (Nashville, United States, 201-500 employees) has 8 open roles, 2 new in 30 days, and names 5 tools in its postings. (Breaknorm, 2 November 2026, https://breaknorm.co/company/nationalhvacservice.com)
How we know

Read from the source, not self-reported

Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →

  • ProfileBuilt from nationalhvacservice.com: summary, offerings, customers, certifications and contact points are extracted from its pages, with a confidence score per field.
  • HiringRead hourly from the company's Paylocity career site; reposts collapse into one record.
  • Tech stackTools the employer's own text names as the team's systems, with the quote; website scripts counted separately.
  • HeadcountLinkedIn where known, otherwise estimated from the site.
FAQ

National HVAC Service: questions

Does National HVAC Service use Microsoft Excel?

Yes, by the company's own words: 1 posting name it, first seen 2026-09-21, in the customer service & success team.

Is National HVAC Service hiring?

8 open roles as of 2 November 2026, 2 opened in the last 30 days and 1 closed. The largest team hiring is skilled trades and field service.

Where does this profile come from?

From nationalhvacservice.com itself: we crawled it on 2026-09-07, built the profile on 2026-09-12, and read its career site (Paylocity) hourly since. Headcount is from LinkedIn.

Who should I write to at National HVAC Service?

The people are behind the login: decision makers by function, verified at the mail server when you open them. 0 public role addresses from the site are there too.

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