Vertical Construction and Renovation

Cerrudo Services’ experience in vertical construction and renovation includes 60 task orders totaling over $31,000,000 in the past six years for the US Coast Guard, US Army Corps of Engineers and other Government entities. Work has included a $2,800,000 dormitory renovation, $3,100,000 Coast Guard Base fire alarm system replacement and a $700,000 gymnasium renovation. In 2015, Cerrudo constructed a $900,000 pre-fabricated metal building in Tracy, CA and a $1,000,000 band room within an Army Drill Hall in Los Angeles.


  • Client: Lawrence Berkeley National Laboratory
  • Location: Berkeley, CA
  • Date: 2016
  • Contract #: 7304623
  • Value: $420,655

Project Details

Cerrudo was awarded the design build contract to perform roof repairs at Buildings 50 and 78. Building 78 is a 5,675 SF single story structure built into the north side of a hill. The existing roof is a concrete deck with a fully adhered built up roof and gravel cover. There are four interior roof drains. The roof has an existing air handling unit on a curb. The roof repair for Building 78 was initially designed as a three-ply modified roof system based on the RFP requirements. The client requested a change of design to a PVC membrane roof system so that the existing built up roof could remain. The new design has been completed and is under client review. Once work commences, the existing loose gravel will be removed. Tapered insulation with diamond crickets will be adhered to the roof. DensDeck primed recovery board will be installed over the tapered insulation, then the Duro-Last PVC membrane roof system will be adhered to the recovery board. The perimeter parapets will be raised and new two-piece perimeter edge metal installed. The installation work is scheduled to begin April 2017.

The new Building 50 roof over the existing library, 2,208 SF, was designed with a fully-adhered PVC membrane system. Before work commenced, fall protection delineators and warning flags were set up six feet away from the open perimeter building edge. The existing horizontal lifeline cable attached to the building wall was used for securing each workers’ personal fall restraint devices.

The existing built-up roof membrane was tested and found to contain PCB’s. The membrane was removed by workers trained in PCB removal and containment. A DensDeck cover board was installed over the concrete and corrugated metal roof deck, and rigid thermal insulation adhered over the cover board. A 40 mil PVC single ply white fully adhered field membrane with water-based adhesive was installed over the insulation, heat welded at laps. New gutters, downspouts and roof ladder were installed.


  • Client: US Coast Guard
  • Location: Alameda, CA
  • Date: 2016
  • Contract #: HSCG88-16-J-PQQ089
  • Value: $85,676

Project Details

Cerrudo Services provided approximately 6,800 SF roof patching at failing areas of roof at Buildings 50 and 51. A pre-construction walkthrough was performed to identify existing patch locations noted in the RFP as well as any additional areas requiring repair.  This site visit identified the material loading areas for each building, the material lay-down area and the debris box location.

The roof deck was be prepared by pressure washing the existing surface areas for repair at tie-in locations. The surface was allowed to dry thoroughly.  Blister areas were cut out to expose the BUR roof membrane surface.  The roof membrane remained in place.  The repair areas were primed with silicone primer at a rate of 400-600 SF per gallon, per manufacturer’s specifications.  The primer was allowed to dry thoroughly.  Butter grade silicone roof sealer was applied at cut edges and reinforcement fabric embedded into sealer.  Silicone coating was roller applied at patch areas at a rate of 2.5 gallons per square.  The roof patching was warranted for five years.


  • Client: US Coast Guard
  • Location: US Coast Guard Training Center, Petaluma CA
  • Date: 2016
  • Contract #: HSCG88-16-J-PFPJ01
  • Value: $270,486

Project Details

The sunshades on the building were failing due to age and water damage.  A 1″ x 1″ aluminum tube support spacer was installed by welding at the end of the new shade closest to the building to facilitate drainage away from the building.  The new sunshades are solid 18 gauge sheet aluminum with a 90 degree bend.  Mechanical fasteners were used to fasten the sunshades to the supports.  A return lip was incorporated to the front valance portion of the new awnings to increase rigidity and to provide a solid anchor point for the attaching screws.  The sunshades were painted prior to installation.


  • Client: US Coast Guard
  • Location: Bodega Bay, CA
  • Date: 2015
  • Contract #: HSCG88-15-J-PQQ002
  • Value: $267,511

Project Details

Cerrudo Services provided the design and construction for the galley at Station Bodega Bay.  Design services included development of a conceptual design (35%) and final design (95%), and production of associated construction documents.  The design utilized the equipment that the Coast Guard had previously purchased and stored.  The new commercial kitchen is capable of preparing meals for up to 35 people.  The scope of work included:

  • New stainless steel casework, countertops, backsplash and storage components.
  • New freezer storage.
  • New hand wash sink, faucet and accessories including garbage disposal.
  • Reconfiguration of existing interior doors, windows and walls to increase efficiency of circulation, allow the operation of a serving line and provide adequate prep area.
  • New floor and wall tile.
  • Patching and repair of existing doors, trim and wall surfaces.
  • Plumbing, mechanical, fire protection and electrical work required for a code compliant kitchen.

Cerrudo removed and disposed of all existing kitchen equipment, furnishings, flooring and finishes. The existing commercial grade refrigerator was salvaged and reused.  The Government furnished exhaust hood included an integrated fire suppression system.  Cerrudo coordinated with the manufacturer for the installation of the system.  A new panelboard was installed to accommodate the increased electrical loads required by the new equipment.  The existing sewer pipe was replaced and extended.  All Government furnished appliances needed to be converted to propane use.


  • Client: US Coast Guard
  • Location: Petaluma, CA
  • Date: 2015
  • Contract #: HSCG88-14-J-PFP444
  • Value: $2,232,354

Project Details

H Complex consists of seven buildings (122, 123, 124, 125, 126, 127 and 128).  Cerrudo Services furnished all materials, equipment and supervision for the maintenance and repair to the heating system, some electrical systems and architectural work on the H Complex.  The H-Complex was originally built as barracks for the Army in 1948.  Over time the occupancy use has changed to offices, classrooms, and barracks.

Cerrudo provided new radiant heaters for the bathrooms on the 1st and 2nd floor of Buildings 124 and 125.  Work included demolition of the existing cabinet heaters and associated piping and valves.  New cabinet unit heater air terminal devices were installed at Buildings 122, 123, 124, 125, 127 and 128.  Work included demolition of the existing cabinet heaters and associated piping and valves and demolition of the windows at the cabinet heater locations.  New units and associated piping, valves and controls with fresh air ducting from the modified louvered windows to the units were installed.  A new 4 ton roof mounted heat pump unit and distribution ducting at Building 127 with new electrical service and fused disconnect was installed.

Cerrudo replaced cooler and freezer boxes including new subfloor and doors, refrigerant piping, valves, controls, compressors and evaporators at the Building 126 Galley.  A new gas range including modification of the existing exhaust hood was provided.  New sewer clean outs were installed at the exterior walkways outside Buildings 123, 124 and 125.

New Men’s and Women’s bathrooms were constructed on the 1st and 2nd floor of Building 124 including the demolition of the existing rooms.  New work included plumbing fixtures, lighting, flooring and wall surfaces, bath accessories and exhaust fans.  A new ADA bathroom was built for the galley in Building 126.

Gutters, downspouts and roof access for Buildings 122, 123, 124, 125, 127 and 128 were provided.  Cerrudo replaced the south facing windows at Buildings 124 and 125 including repair of moisture damage.  New architectural fixtures and finishes were provided in Classroom Buildings 122 and 123.  New carpet tiles were installed where new work occurred.


  • Client: US Army Corps of Engineers
  • Location: Los Angeles, CA
  • Date: 2015
  • Contract #: W91238-11-D-0031-0006
  • Value: $1,019,369

Project Details

Cerrudo Services was prime contractor for the design and construction of a standalone 2,860 SF Band Room within the existing Patton Drill Hall in Bell CA.  The rehearsal hall is an open space with an 18’H acoustical tile ceiling, acoustical panels mounted on the walls and carpet tile flooring.  In addition there is a storage room and three individual relocatable music practice rooms.

The new partitions were required to meet an acoustical value of 56 STC to isolate the sound and vibrations from the practice rooms and rehearsal room to the adjacent offices.  The space was designed to support optimal reverberation times for musical performances at mid-range frequencies (500-1000 HZ).

New roof top HVAC units were installed to service the rehearsal hall and the three practice rooms.  Each practice room has a separate, individually controlled HVAC unit with dedicated outside air.  The contract included the installation of a fully functional fire alarm and mass notification system throughout the two story 40,000 SF building as well as the new Band Room.


  • Client: US Army Corps of Engineers
  • Location: Defense Depot San Joaquin, Tracy CA
  • Date: 2015
  • Contract #: W91238-11-D-0031-0005
  • Value: $409,481

Project Details

Cerrudo Services was prime contractor for the design and installation of a 3,750 SF pre-engineered metal shed structure on the north side of Warehouse 57-1 at Defense Depot San Joaquin.

The building has one side wall along its length; the two ends are open.  The structure has fully operational lighting with occupancy sensors, speaker / strobes, sprinkler system with new riser for Type II construction storing ordinary combustibles and weatherproof receptacles for power and telecommunications.  The structure’s siding and roof panels are 26 gauge steel with a roof slope of ¼” per foot, with gutters, downspouts and skylights.  The structure is not attached to the existing warehouse; an expansion joint separates the two at the upper roof edge.

Fire sprinklers, electrical and data are originating within the occupied warehouse.  Piping, conduit and cable trays were installed within the warehouse to termination points at the north wall where they penetrate the exterior concrete panel.  The wall was X-rayed to confirm the location of the steel before drilling through the wall.


  • Client: US Army Corps of Engineers
  • Location: Beale AFB, CA
  • Date: 2015
  • Contract #: W91238-11-D-0031-0004
  • Value: $509,530

Project Details

Cerrudo Services was the prime contractor for the renovation of a 4,665 SF portion of the 3rd floor, Building 2145, including construction of five new classrooms.  The scope of work included demolition of existing walls, new gypsum board faced walls and demountable classroom partitions, replacement of ceiling tiles and carpeting, fire alarm and fire sprinkler relocation and addition, HVAC relocation, lighting relocation and new electrical and telecommunication outlets.

Building 2145 is a SCIF (sensitive compartmental information facility).  Barriers were installed to segregate construction workers from operational activities and to provide protection against unauthorized access and visual observation to secured building areas.  All workers and work were under the visual observation of Government escorts.  Electronic devices including cameras, cell phones, GPS devices and radios were prohibited in the building.


  • Client: US Air Force
  • Location: Travis AFB, CA
  • Date: 2014
  • Contract #: W91238-11-D-0031-0003
  • Value: $864,924

Project Details

Cerrudo Services designed and constructed a new accessible community park, and renovations to two existing playgrounds at Travis Air Force Base.   The new accessible community park is situated on a 24,100 SF site.  The park is comprised of accessible parking and walkways, nicely landscaped areas of sod, mulched plantings and planter boxes, and a swing set over poured in place soft surfacing.  Amenities include benches, trash receptacles and a bike rack.  There is a 6 foot high chain link fence around the perimeter of the park with three gates.  The irrigation system for sod and plants is programmed through a solar powered controller.  

The renovated portion of the playground at Child Development Center No. 2 is 8,700 SF; and the renovated portion of the Child Development Center No.3 playground is 5,200 SF.  Both playgrounds serve children from three to five years of age.  The playgrounds received new nature activity areas, a stage, affixed musical instruments and art easels, with sod, plantings and accessible walkways.  The Air Force’s concept for the childrens’ play areas were based in part on the current movement to reconnect children to nature – to allow them to grow and explore the natural environment.  Cerrudo designed both the park and playgrounds to allow children the opportunity for free play – plants to explore, music to make, performances to plan and share, and art to create.  


  • Client: US Coast Guard
  • Location: Alameda, CA
  • Date: 2014
  • Contract #: HSCG88-12-J-PQQ068 and HSCG88-13-J-PQQ190
  • Value: $1,577,329

Project Details

Cerrudo Services provided re-roofing of housing units at the Coast Guard’s Marina Village housing complex.  The work was completed in two phases.  The first phase consisted of 18 housing units; the second phase of 44 housing units.

The existing asphalt shingle roofing was removed down to the roof deck.  Existing gutters and downspouts were removed.  Vinyl siding was removed where necessary to replace roof-to-wall flashing.  Damaged roof sheathing, wall insulation board, fascia board and fascia metal were removed as required.

New asphalt shingle roofing systems were installed including new soffit vent baffles between wood trusses, new eave edge vents, solar powered attic fans, and new gutters and downspouts.  Vinyl siding was replaced at roof to wall flashing and damaged roof sheathing was replaced.  Damaged wall insulation board, fascia board and fascia metal was also replace where removal of the existing flashing, gutters and roofing caused damage to the existing material.