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HVAC contractor listed in Edmonds, WA

Mainstream Mechanical Corp

Edmonds business address · public details checked Aug 31, 2026

Active Washington contractor registration

This source-backed profile is available in the directory but is not currently eligible for search-engine indexing because it is not yet selected for the controlled indexing rollout.

Public record summary

Business details at a glance

Washington State Labor & Industries contractor license data lists Mainstream Mechanical Corp at the address below with credentials related to hvac/rfrg, heating/vent/air-conditioning and refrig (hvac/r). These are public-record facts, not a rating or endorsement.

Directory categoryHVAC Contractors
Record statusActive when checked
Business locationEdmonds, WA 98026
Last source checkAug 31, 2026
Primary credentialMAINSMC943K2
First license date on fileApr 6, 2006
Business typeCorporation

Use the official-record links below to recheck status and dates before signing a contract.

Start with your project

Is Mainstream Mechanical Corp a fit for your project?

The public record connects this business to hvac/rfrg, heating/vent/air-conditioning and refrig (hvac/r). Homeowners often compare this type of professional for:

  • Heating or cooling that stopped working
  • Furnace, air-conditioner or heat-pump replacement
  • New HVAC installation, sizing or ventilation work

Work classifications on the public record

Ask about your exact job

Ask who will calculate system size, whether ductwork is included and which efficiency, permit and commissioning details will be documented.

The record does not establish availability, service radius, insurance for your project or experience with an identical job. Ask directly and compare written proposals.

License or certification details

Understand what each credential covers

Active when checked

HVAC/RFRG contractor registration

Washington · ID MAINSMC943K2 · expires May 22, 2028

This public record shows a hvac/rfrg contractor registration in Washington.

Boundary: The record does not rate workmanship, pricing, insurance coverage, availability or customer service.

Open official record
Active when checked

Heating/Vent/Air-Conditioning and Refrig (HVAC/R) contractor registration

Washington · ID MAINSM*945JF · expires Apr 24, 2028

This public record shows a heating/vent/air-conditioning and refrig (hvac/r) contractor registration in Washington.

Boundary: The record does not rate workmanship, pricing, insurance coverage, availability or customer service.

Open official record
See where the profile details came from (9 source checks)
  • addressChecked Aug 31, 2026Source
  • address.mainsmc943k2Checked Aug 31, 2026Source
  • canonical nameChecked Aug 31, 2026Source
  • credentialChecked Aug 31, 2026Source
  • credential.mainsmc943k2Checked Aug 31, 2026Source
  • phoneChecked Aug 31, 2026Source
  • phone.mainsmc943k2Checked Aug 31, 2026Source
  • primary tradeChecked Aug 31, 2026Source
  • primary trade.mainsmc943k2Checked Aug 31, 2026Source
Contact and location

How to reach Mainstream Mechanical Corp

Business address
8600 MAIN ST, Edmonds, WA 98026
Phone on public record
(425) 778-4315
Work classifications
HVAC/RFRG, Heating/Vent/Air-Conditioning and Refrig (HVAC/R)
Record checked
Aug 31, 2026
Service-area note
The record shows a Washington business address. It does not establish the company’s service radius.
Use the data correctly

What this profile can and cannot tell you

What the public record shows

  • Business name, address and available public contact information
  • Credential number, jurisdiction, status at the check date and listed expiration
  • Work classification attached to the source record
  • The official source and date behind the profile

What to ask the business

  • Current availability and whether it serves your address
  • Insurance, bonding, permits and who will perform the work
  • Recent experience with your scope and applicable warranties
  • A written price, payment schedule, exclusions and change-order process
Prepare before contacting

Estimate the work, then compare proposals

Use a related planning calculator before asking companies for written proposals. Calculator results are planning figures, not contractor quotes.

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Use the call well

Questions to ask Mainstream Mechanical Corp

  1. Project fit: Do you perform this exact type of work at my address?
  2. Credential: Which license, registration or certification applies to this scope?
  3. Written scope: What labor, materials, permits, cleanup and disposal are included?
  4. Insurance and people: Who performs and supervises the work?
  5. Schedule: When could the work start and how are delays communicated?
  6. Changes and warranty: How are change orders and warranty terms documented?

Profile ownership and corrections

This profile is not managed by the business unless marked otherwise. Inclusion is not an endorsement.

Suggest a factual correction for Mainstream Mechanical Corp
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