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Pro Mechanical Services Inc.

WA + ID, registered in both statesEst. 2010
(509) 483-1305

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Credentials & honors

Pro Mechanical Services Inc. is a Spokane mechanical and electrical contractor whose recent permits read like a facilities checklist: rooftop unit replacements, LED retrofits, a new DDC building automation system, backup generators and a school modernization with a new service in Ione. HVAC, electrical, controls, security and custom metal fabrication all run under one roof, with work spread from Spokane Valley and Medical Lake to Colville and beyond.

The state insures Pro Mechanical under workers'-comp classes for HVAC-R installation and service, electrical wiring in buildings, alarm system installation, metal goods fabrication and construction project management, which matches the work on its permits. Public-work filings go back to 2010, under a predecessor licence, for agencies including the Spokane Department of Transportation, Spokane Fire Department, the City of Spokane, Spokane School District 81, Mead School District, Eastern Washington University, the Spokane Airport Board and Spokane Transit Authority, usually as a subcontractor. The crew runs to more than a hundred workers, and the company describes itself as family-owned. The state lists Jon Vanos and David Knutson as principals since 2014. This is a contractor built for commercial buildings and public facilities: rooftop HVAC retrofits, lighting upgrades across a school or municipal building, generator backup, building controls. The company advertises 24/7 on-call service, which suits property managers and facility operators who can't wait for a weekday slot. A homeowner after a single bathroom fan or small household repair is a poor match for an operation this size, and framing or drywall falls outside the mechanical and electrical work it does. Spokane's building stock spans early-century brick schools and storefronts downtown to newer tilt-up commercial space out in the Valley and Liberty Lake, and that mix shapes mechanical and electrical work. Older buildings often carry surface-mounted conduit, aging panels and fluorescent fixtures that make LED retrofits and service upgrades worthwhile, while newer ones tend to need rooftop unit swaps and controls integration. Ask any contractor how they handle wiring in plaster or masonry walls, and whether new equipment will tie into the existing automation system.

WA L&I registration verified November 1, 2026 · see the state record

WA L&I registration
Registration number
PROMEMS863NJ
Registered as
PRO MECHANICAL SERVICES INC
Registration checked
November 1, 2026
Registered since
2014
Expires
August 2028
Also licensed in Idaho
007726
Contractor registration
PROMEMS908N3
Contractor bond
$4,000 · Old Republic Surety Co
Check it on the state record
On Google
4.9/ 5

Pro Mechanical Services Inc.'s Google rating, from 29 reviews. Worth ten minutes before you call — read the most recent ones first.

Read the reviews on Google
Listed services
01
HVAC installation and repair
02
Electrical wiring and lighting upgrades
03
Building automation and controls
04
Backup generator installation
05
Security systems and cameras
06
Custom metal fabrication
07
Refrigeration services
08
Preventative maintenance

Ask Pro Mechanical Services Inc. which of these their own crew handles.

The record

The details on Pro Mechanical Services Inc

WA L&I registration
PROMEMS863NJ
Idaho HVAC license
007726
Registered as
PRO MECHANICAL SERVICES INC
Registration checked
November 1, 2026
Registered since
2014
Expires
August 2028
Contractor registration
PROMEMS908N3
Contractor bond
$4,000 · Old Republic Surety Co
Established
2010
Primary trade
HVAC
L&I specialty
GENERAL
Registered principal
Jon Vanos · since 2014
Registered principal
David Knutson · since 2014
Registered principal
Kirstin Vanos · since 2020
Registered principal
Russell Vanos · since 2020
Registered principal
Kavadias Hall PLLC · since 2021
Based in
Spokane

Own this business? Claim the listing to correct anything here.

Before you call

Questions worth asking Pro Mechanical Services Inc

Does Pro Mechanical Services Inc. hold a Washington contractor registration?

Registration PROMEMS863NJ is the one to check, and it expires August 2028. It is Pro Mechanical Services Inc.'s, filed with Washington State L&I. They are also licensed in Idaho (007726), so Coeur d'Alene-side work is covered too. That was current on the state record as of November 1, 2026 — the link on this page goes to the record itself. On file alongside it: a $4,000 contractor bond (Old Republic Surety Co). Ask them to send the bond and insurance certificates over before the first day on site.

What kind of work does Pro Mechanical Services Inc. take on?

HVAC installation and repair, electrical wiring and lighting upgrades, building automation and controls, backup generator installation, security systems and cameras, custom metal fabrication, refrigeration services, preventative maintenance — that is the heating and cooling work they list. Ask where the subcontractors come in.

Does Pro Mechanical Services Inc. have good reviews?

4.9 out of 5 on Google, across 29 reviews. This page links straight to them — read the most recent first, since they tell you how the business runs now rather than how it ran three years ago.

Whose number is 509-483-1305?

It belongs to Pro Mechanical Services Inc., an HVAC contractor based in Spokane (pro-msi.com). Missed the call? Ring (509) 483-1305 back with your address and a rough scope to hand — it is the difference between a real number and a range.

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