Acco Engineered Systems Inc
Licensed HVAC contractor in Seattle, Washington
Acco Engineered Systems Inc holds Washington L&I licence ACCOESI971KW, active, licensed since 16 May 2003, rated 4.5 from 16 Google reviews. Bonded for $4,000 with Fidelity & Deposit Co of Md. No complaints on the Washington L&I record.
Report card
- Licence activeWashington L&I #ACCOESI971KW, Hvac/Rfrg. Issued 16 May 2003, expires 10 Nov 2028.
- Licensed 23 yrsSince 16 May 2003.
- Bonded$4,000 with Fidelity & Deposit Co of Md, since 14 Feb 2001. Washington sets the bond by licence type ($30,000 for a general contractor, $15,000 for a specialty contractor, $4,000 for an electrical contractor), so the amount shows the kind of licence, not the size or quality of the business.
- No complaintsNone on the Washington L&I record.Washington L&I record
- On the BBB, not accreditedIts BBB rating, complaints and reviews are on its Better Business Bureau profile.BBB profile Complaints Reviews
Checked against the Washington State Department of Labor & Industries (L&I) register on 4 Nov 2026.
Google reviews
4.5(16 reviews)Luis Cabuto★★★★★ 2 years agoView on Google
Brandon got in there and did not stop until our issue was resolved. Highly recommend Acco but would also highly recommend asking for Brandon. Great work ethic and professional service.
Natalie L★★★★★ 2 years agoView on Google
ACCO's service tech was amazing! He diagnosed the issue, solved it and explained it to me efficiently and professionally. I wish we had called ACCO 3 years ago when we first thought our office's new HVAC wasn't performing properly.
Natural Wellness Center★★★★★ 7 years agoView on Google
Our AC started making noise and we were concerned that it might stop working. When I called I spoke to Carmen, who was super helpful. Kenton was the tech who came out the next day to check on it for us. Kenton was friendly and helpful. He took the time to talk to us to find out what we were noticing with the AC, and also spent some time investigating and made some adjustments. All around very happy with the service w…
Jake Bowen★★★★★ 6 years agoView on Google
These guys are amazing! We had an urgent issue at our office in downtown Seattle, I was able to get in touch with their emergency line and they had a service technician come down ASAP the technician Chris walked in and immediately was able to identify the Oder in our office as either being a burnt out fan or a burnt out ballast. Chris went around to each HVAC system and proceeded to test each and every system. This g…
Chris Topher★★★★★ 9 months agoView on Google
This company had my car towed from in front of their property when I parked in what appeared to be a public spot on the street. There are zero signs indicating that it is part of their property, and they are clearly conspiring with a local tow company to make money off of unsuspecting car owners. If this was not their goal, they would have put up no parking signs years ago. Thanks for costing me $300 guys
Read all 16 reviews on Google Reviews and photos from Google, 4 Nov 2026.
OSHA inspections
US Department of Labor enforcement data, matched by business name and city.
- 6 Jun 2019 · Programmed related0 violations · View on OSHA
Why it ranks #3 of 36 HVAC contractors in Seattle
Score 87.9 / 100. Claiming this listing or using Theo never changes it. How we rank
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