Biwell Construction, Inc.
Current Projects


Bothell Library reroofing and HVAC equipment replacement
Bothell, WA; 18215 98th Ave. NE

Bid date: 1 pm May 9, 2017
Addenda: prebid sign in (04/25)
Public notice:
Owner: King Cty Library System, Service Center, 960 Newport Way NW, Issaquah WA 98027, 425-369-3200
Architect: F. E. Tompkins Architecture PS, PO Box 344, Preston, WA 98050, Gene Tompkins.
Scope: Partially reroof at two low slope rooftop mechanical equipment wells, and replace six HVAC roof top units within the wells.

Seattle Public Library 2017 Fremont branch exterior repairs

Seattle, WA, #PW 2017-14; 731 N 35th St.
Bid date: 1 pm Jun 14, 2017
Estimated cost: $213,000
Owner: City of Seattle, Seattle WA 98121-1012
Architect: SHKS Architects, 1050 N 38th St., Seattle, WA 98103, 206-675-9151, fax 206-675-9150,
Scope: Work includes: Replace existing unbraced masonry chimney with a metal frame chimney built to match, and select exterior doors with aluminum clad wood doors built to match; repair clay tile roof, existing concrete knee wall, and masonry, including brick and terra cotta; refinish metal handrails, guardrails, ornamental screens, and exterior light fixtures; site protection; paint exterior finishes

Airport Way Center Building E - Envelope improvements

2203 Airport Way South Seattle, WA, Contract #2016-137

Estimated cost: $182,570 - $223,140; $26,892 - $32,866 (Alt 1).
Scope: Main project work includes: Replace storefront with a new thermally broken aluminum storefront system that includes new flashing, sealant joints at concrete panels around the building, and exterior light fixtures; provide a parapet handrail for fall protection. Alternate No. 1 work includes: Remove and replace the south side main entry storefront assembly and entrance doors






Covington Library



T102 Harbor Marina Corporate Center roof and HVAC units  

Estimated cost: $2.5 - $5 million
Owner: Port of Seattle Central Procurement Office (CPO), 2529 S 194th St., SeaTac WA 98188, 206-787-3110
Scope: Remove and replace approx 88,000 sf of existing roofing at the Harbor Marina Corporate Center (HMCC) at Terminal 102. The HMCC is comprised of four buildings and has 69 existing rooftop HVAC units. Remove and replace 14 HVAC units; and raise the remaining 55 HVAC units. Perform regulated material abatement. Provide all re-roofing work at all roofs as indicated including complete roof system replacement, raising all mechanical roof top units by extending existing curbs so that curbs are a minimum of 12" in height from finished roof surface. Mechanical rooftop work includes extension of all ducts, wiring and appurtenances to accommodate work. Extend parapets; provide all sheet metal flashings; replace gas lines and meters; replace electrical wiring and conduits as indicated; replace all hot stack vents and provide a full fall protection system. Contractor personnel must have a valid TWIC to work in these restricted areas.













Seattle Municipal Tower envelope improvements
Seattle, WA, #2015-045; 700 Fifth Ave.

Estimated cost: $890,812 (base bid); $299,061 (Alternate 1); $299,061 (Alternate 2); $299,061 (Alternate 3); $250,906 (Alternate 4); $467,000 (Alternate 5)
Owner: City of Seattle, Seattle WA 98124-4687, email, contact Michael Johnson, project manager
Scope: Replace envelope sealant within scope boundary, spot repair stone panel, install wet sealant at all glazing units within scope boundary, and replace small metal roof at Floor 58.