7 Licensed Siding Companies Based in Mount Vernon
Mount Vernon, WA has 7 siding contractors showing an active license and a Mount Vernon address. The oldest of them has held a license since 2014.
Licenses checked · Washington State Department of Labor & Industries
1989median year homes were built
What's on the ground in Mount Vernon
35,377 people call Mount Vernon home, inside Skagit County, where the typical house traces back to around 1989.
A Mount Vernon house that age has usually had at least one exterior overhaul by now.
That's the housing stock behind the 7 siding contractors on this page.
5median years licensed
The Mount Vernon siding license record
The 7 siding contractors listed for Mount Vernon include one licensed since 2014.
29% of them have held their license 10 years or longer.
3 picked up their license in the last 24 months.
Data: Washington State Department of Labor & Industries license records, checked 2026-09-30.
Siding contractors licensed out of Mount Vernon, WA
Sorted A to Z by business name.
| Business | Category | License class | License no. | Status | Effective | Expires | ZIP | Official record |
|---|---|---|---|---|---|---|---|---|
| Hammer | Siding contractor | Siding | HAMME**758QF | Active | Nov 6, 2025 | Nov 6, 2027 | 98274 | Verify license |
| JK Siding LLC | Siding contractor | Siding | JKSIDSL861KF | Active | May 6, 2014 | Jul 15, 2028 | 98274 | Verify license |
| Portugal Construction INC | Siding contractor | Siding | PORTUCI865MM | Active | Jul 28, 2014 | Feb 5, 2027 | 98274 | Verify license |
| S And A Siding LLC | Siding contractor | General | SSIDI*S799P8 | Active | Sep 24, 2021 | Sep 24, 2027 | 98273 | Verify license |
| Skiba Construction | Siding contractor | Siding | SKIBAC*752QG | Active | Nov 7, 2025 | Nov 7, 2027 | 98273 | Verify license |
| STL Construction LLC | Siding contractor | Siding | STLCOCL750RW | Active | Dec 16, 2025 | Dec 16, 2027 | 98273 | Verify license |
| Yermakovich Construction LLC | Siding contractor | Siding | YERMACL812JJ | Active | Apr 11, 2019 | Apr 11, 2027 | 98274 | Verify license |
Questions to ask before you sign
- What license number and class do you hold for siding work here, and can I verify it with the state before we sign anything?
- Is a permit required for this scope of work, and who is responsible for pulling it?
- Will you remove and haul away the old siding, and is that priced as a separate line item?
- What exactly does the written estimate include: house wrap, flashing, trim, and site cleanup?
- What does the manufacturer's material warranty cover, separate from your warranty on the installation itself?
- How much is the deposit, and what triggers each remaining payment?
- Will the crew on my house be your own employees or a subcontractor?
- What happens if you find rot or damage once the old siding comes off?