Services.

Innovation in MEP engineering & design, with over 20 years of professional experience in our trade.

Our services

Engineering & field services

Engineering Services

Mechanical Design Efficient HVAC and hydronic systems for new construction and retrofits.
Electrical Design Power, lighting, controls, fire alarm, security and telecom design.
Plumbing Design Domestic water, sanitary, storm and hot-water systems to code.
EV Charging Station Electric vehicle charging design, from load studies to permit-ready plans.
Sustainability Consulting LEED, energy audits, benchmarking and life-cycle cost analysis.

Field Engineering

Engineering services

Green HVAC Design Solutions

Complete heating, ventilation and air-conditioning engineering, covering central, forced-air, hydronic, hot-water and radiant systems. We work with owners and architects to design state-of-the-art, efficient HVAC for construction and renovation projects, using continuous process improvement to deliver smart, integrated solutions that make the most of capital investment.

Green Plumbing Design Solutions

Our plumbing engineers plan and design storm-water, sanitary sewer, fixture and hot-water systems with safety and security in mind. We apply current codes, select cost-effective materials and technology, and coordinate closely with architects for successful outcomes.

Green Electrical Engineering Solutions

Complete design and integration for controls projects, from building automation to wastewater and water treatment plants, boiler and chiller plants, power generation and process systems. Automation that makes business sense.

Power supply & distribution
Control systems
Security, access & CCTV
Detection & alarm systems
Interior & exterior lighting
Information & telecom systems
Fire detection & alarm

EV Charging Station Design

Electric vehicle charging for workplaces, fleets, multi-family and public sites. We assess existing electrical capacity, run load calculations, lay out chargers and conduit, and deliver permit-ready plans that make room for future growth.

Sustainability Consulting

Practical sustainability that pays back: LEED consulting and documentation, energy audits and benchmarking, renewable energy and solar PV studies, and life-cycle cost analysis to guide design decisions.

Field engineering

Quality Control / Quality Assurance & Material Testing

GPSG provides construction materials testing, quality assurance (QA) and quality control (QC) for roadway, transportation and building projects. We perform field and laboratory testing of soils, aggregates, asphalt and concrete in line with WSDOT Standard Specifications, the WSDOT Materials Manual (M 46-01), WAQTC, AASHTO and ASTM, using accredited laboratories and qualified technicians.

As a DBE-certified firm with a local presence, we work alongside prime teams on Design-Bid-Build, Design-Build and Progressive Design-Build projects: responsive testing, accurate documentation and early issue identification that reduce risk and support durable construction.

Testing & inspection capabilities

Concrete mix designs, field & lab testing
Asphalt sampling, testing & mix designs
Earthwork observation & compaction testing
Soil resistance testing (lab & field)
Special inspections (IBC Chapter 17)
Structural steel, welding & high-strength bolting
Non-destructive testing (ASNT)
Spray-applied fireproofing & firestop inspection
Roofing, EIFS & waterproofing verification
Grounding (3-point fall-of-potential) & cathodic protection

WABO certifiedICC certifiedACI certifiedNICET certifiedAWS certifiedWAQTC certifiedASNT certified

Current project

SR 167 Completion Project, Puyallup, WAOngoing

Quality control, quality assurance and material testing: field testing of concrete, soils, aggregates and asphalt, cylinder sampling and breaks, compaction testing, and daily and weekly QA reporting.

Concrete placement on a pavement panel replacement project — Concrete placement and field testing

Finished concrete pavement panel — Finished panel, tested for strength, air content and shrinkage

Field engineering

Construction Field Engineering

Engineers on site when you need them: reviewing work against plans and specifications, resolving field issues with the design team, tracking quantities and progress, and keeping accurate daily records and as-builts.

Construction Management & Inspection

From municipal roads and utilities to highway and building design-build projects, we build a team around your requirements and work with the client, contractor, suppliers, engineers and stakeholders through every phase so cost, schedule, safety and quality stay under control.

PHASE 1

Pre-Construction

Review plans, specifications and estimates
Set up document control and filing systems
Run pre-construction meetings, agendas and minutes
Set up the Engineer of Record review and approval process
Document pre-existing conditions with photos and video
Prepare schedules and traffic control plans
Augment office engineering and inspection staff

PHASE 2

Construction

Owner representation and day-to-day CM support
General and specialty inspections
Quantity measurement and payment recommendations
Contractor oversight, coordination and documentation
Baseline and update schedule review
Design-change evaluation and independent cost estimates
Red-line as-builts, punch lists and material-testing coordination

PHASE 3

Post-Construction

Claims review and impact analysis
Claims negotiation and resolution
Close-out and documentation per client requirements
Lessons-learned sessions
Final contractor evaluation

Industries we serve

Transportation & Highways

Public Agencies & Municipalities

Transit

Schools & Education

Healthcare Facilities

Architects

Contractors

Hospitality

Food Manufacturing

Residential & Commercial Mixed-Use

Renovation & Tenant Improvements

Strategic, value-added services

Complementing our core MEP engineering, project management, QC/QA and construction management work:

Project managementQC/QA material testingSpecial inspectionsConstruction inspection & documentationEnergy management and auditRenewable energy audit and benchmarkingSustainability consultingLEED consultingSolar PV design and installationNatural damage assessmentStructural review and designProject planningPlanning and design reviewCost estimatingLife-cycle cost analysis