Great Sun Corp
Licensed HVAC contractor in Seattle, Washington
Great Sun Corp holds Washington L&I licence GREATSC951D1, active, licensed since 21 Mar 2005, rated 4.4 from 14 Google reviews. Bonded for $15,000 with Western Surety Co. No complaints on the Washington L&I record.
Report card
- Licence activeWashington L&I #GREATSC951D1, Heating/Vent/Air-Conditioning And Refrig (Hvac/R). Issued 21 Mar 2005, expires 5 Apr 2027.
- Licensed 22 yrsSince 21 Mar 2005.
- Bonded$15,000 with Western Surety Co, since 5 Apr 2025. 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.
- Liability insuredOhio Cas Ins Co, $1,000,000, valid to 15 Jun 2027.
- 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
- 99 building permits since 2020Naming this business as the contractor (City of Bellevue; City of Seattle), most recently 30 Jul 2026.
Checked against the Washington State Department of Labor & Industries (L&I) register on 4 Nov 2026.
Google reviews
4.4(14 reviews)Emad Qaifa★★★★★ a year agoView on Google
Very professional and helpful, they install a hood ventilation for my restaurant, and all the work they did and the permit process and everything was great. Bought all restaurant equipment from them and im more than happy. Kevin is the best!
Nation Son★★★★★ 2 years agoView on Google
Awesome customer service! needed a commercial freezer ASAP and they were the only company in the area that had one in stock and able to deliver same day! will continue to use them in the future.
Stephanie Martinez★★★★★ 2 years agoView on Google
Fair prices, in stock items, fast delivery, excellent customer service and communication. I would highly recommend them for Equiptment and will definitely order again.
Pike Dzurny★★★★★ 2 months agoView on Google
So Tuff
Jin★★★★★ 2 years agoView on Google
I don't want to give an asterisk 1, but there is no 0 point, so I give you a 1 point. It's been almost a year since the hood construction was completed, but it hasn't been accepted yet. Promise, don't keep the contract. Never sign a contract with this place if you are planning to build a hood in the future.
Read all 14 reviews on Google Reviews and photos from Google, 4 Nov 2026.
Recent permits
Building permits pulled under licence #GREATSC951D1, from City of Bellevue; City of Seattle open data, which names contractors up to 2 Nov 2026. Locations are shown to ZIP code only.
- 30 Jul 2026 · Mechanical Plan Review · ZIP 98004Installing (3) Walk-In Cooler Units, refrigeration system 24-104546 BW 24-105083 BL
- 23 Jul 2026 · Mechanical Plan Review · ZIP 98005Installing (1) type 1 hood, (1) exhaust fan and (1) make up air system (electric heat)., 25-121640BY Post-Issuance Revision 1 is proposing to change the...
- 30 Jun 2026 · Mechanical Plan Review · ZIP 98007Installing (1) type 1 hood, (1) ELECTRIC make up air system, (2) exhaust fans 25-103946 BY 25-119626 BL - gas piping 26-106883 BL - exhaust fans
- 29 Apr 2026 · Mechanical Plan Review · ZIP 98004Installation of (1) 12' type I kitchen hood, UL762 Rated Direct Drive Square In-line Fan, In-line tempered make up air unit and gas piping for 7 commercial...
- 20 Feb 2026 · Commercial Trade · ZIP 98134Alterations to mechanical system on existing commercial building, per plans.
Why it ranks #35 of 36 HVAC contractors in Seattle
Score 86.6 / 100. Claiming this listing or using Theo never changes it. How we rank
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