Building permits by Carlson Mechanical
| Trade | Permits | Last 12 mo | Usual filed value | vs trade | Active | Evidence | List position |
|---|---|---|---|---|---|---|---|
| Boiler | 73 | 36 | $20k | 1.3× the usual for the trade | Oct 2023 – Sep 2026 | Strong | #1 of 37 |
List position: where the firm lands on the Seattle comparison for that trade at default settings (or at a typical budget), among firms without a license problem. It's a match score from public records, not a quality rating.
Filed value is what was written on the permit, not a quote or final bill. Some jobs never need a permit.
License
- Status on the license recordActive, 21 years on record
- License numberWashington L&I #CARLSM*953O7
- Class / typeConstruction contractor, General
- Check it yourselfWashington L&I contractor lookup
Complaints, lawsuits and the permit record
Our record covers building permits, not complaints or court cases. In Seattle, WA, Carlson Mechanical pulled 73 permits 2023–2026; about 99% of those old enough to judge reached completion, and 0 of 38 permits a year or more old are still open. To check complaints and lawsuits, search Washington L&I for #CARLSM*953O7 (Washington L&I contractor lookup), BBB complaints for Carlson Mechanical and King County court records.
We never say whether a complaint or lawsuit exists: we do not hold those records.
Questions
- How many permits has Carlson Mechanical pulled in Seattle, WA?73 matching permits between Oct 2023 and Sep 2026, 36 of them in the last 12 months.
- What work does Carlson Mechanical do?By permit count: Boiler.
- Is Carlson Mechanical licensed?Yes: Washington L&I license #CARLSM*953O7 (Construction contractor, General), Active, 21 years on record. We match by name, so confirm the number on the official Washington L&I contractor lookup before signing.
- Are there complaints or lawsuits against Carlson Mechanical?Our record covers building permits, not complaints or court cases. In Seattle, WA, Carlson Mechanical pulled 73 permits 2023–2026; about 99% of those old enough to judge reached completion, and 0 of 38 permits a year or more old are still open. To check complaints and lawsuits, search Washington L&I for #CARLSM*953O7 (Washington L&I contractor lookup), BBB complaints for Carlson Mechanical and King County court records.
- Are there reviews of Carlson Mechanical in Seattle, WA?We do not collect reviews. What we hold is the public permit record: Carlson Mechanical pulled 73 permits in Seattle, WA from Oct 2023 to Sep 2026, about 99% finished. Washington L&I license #CARLSM*953O7: Active. For reviews, see the firm’s BBB profile or Google listing, and check them against this record.
Where Carlson Mechanical works
The ZIP codes where Carlson Mechanical filed the most of its 73 permits on homes in Seattle, counted at each property's ZIP code. A ZIP code opens every permit we track there and the most active firms in each trade.
Similar boiler installers in Seattle
The 5 boiler installers closest to Carlson Mechanical's 73 boiler permits. Similar volume, not similar quality.
- Northwest Mechanical · 107 permits
- Greenwood Htng & Home Services · 61 permits
- Energy Works LLC · 39 permits
- Green City Htg & A/C Inc · 27 permits
- Gene Johnson Plbg Htg Elec LLC · 20 permits
Compare Carlson Mechanical with other Seattle boiler contractors
Every permit record in the city, side by side. Pick what you value. The list moves.
Source: public permit records (Seattle), matched by contractor name. How the records work. Something wrong? Firms can request a correction.