Our engineering services

Retaining Wall Design A licensed engineer designs retaining walls that hold back soil safely, with stamped plans your building department will accept. $500+ Swimming Pool Engineering Stamped structural and site plans for inground pools, pools on slopes and pools near retaining walls or foundations. $500+ ADU Site and Structural Engineering Site, grading, drainage and utility design for accessory dwelling units, backyard cottages and garage conversions. $2,000+ Residential Site Plan for a New Home Stamped site plan for a new house showing building location, grading, drainage, driveway and utilities for your permit. $1,500+ Driveway Permit and Culvert Engineering Driveway plans, culvert sizing and access permits for new or widened residential driveways that connect to public roads. $500+ Hillside and Steep Lot Engineering Engineering for building on steep or unstable slopes: slope stability, foundations, retaining walls and drainage. $5,000+

Land Development Feasibility Study Before you buy land, an engineer checks zoning, utilities, access, flood zones, soils and costs to see what can actually be built. $2,500+ Commercial Site Plan and Civil Design Full civil engineering for commercial projects: site layout, grading, stormwater, utilities and permitting through approval. $10,000+ Subdivision Engineering and Plat Support Engineering for dividing land into lots: lot layout, streets, utilities, stormwater and the approvals needed to record a plat. $300+ Lot Split and Minor Subdivision Split one parcel into two or a few lots, with the survey, plat and engineering your county needs to approve it. $2,000+ Mass Grading and Earthwork Plan Engineered grading plans and cut and fill calculations for large sites, pads and land development. $3,000+ Parking Lot Design Layout, grading, drainage, pavement, ADA stalls and lighting coordination for new or expanded parking lots. $3,000+ Solar Farm Civil Design Civil engineering for utility and community solar: grading, access roads, stormwater, erosion control and pile geotech. $20,000+ EV Charging Station Site Design Site layout, accessibility, utility trenching and permitting for public or workplace electric vehicle charging stations. $3,000+ Zoning, Rezoning and Entitlement Support Engineering exhibits, testimony and studies for rezoning, variances, special use permits and planning board approvals. $2,000+ Engineer's Cost Estimate and Bond Estimate Stamped cost estimates for site improvements used for performance bonds, loans, and budgets. $1,000+ Topographic Survey A survey mapping elevations, contours, trees and site features, the base map engineers need before designing anything. $500+ Boundary and ALTA/NSPS Survey Property line, boundary and ALTA surveys by licensed land surveyors for purchases, fences, lenders and site plans. $375+

Yard Drainage and Flooding Engineering An engineer finds why your yard or basement floods and designs a drainage fix that works, instead of guessing with drains. $500+ Grading and Drainage Plan Stamped grading and drainage plan for building permits, showing finished grades, slopes, swales and where water goes. $800+ As-Built Lot Grading Certification Final grading certification after construction confirming the lot was graded per the approved plan, often needed for a certificate of occupancy. $300+ Stormwater Management Plan Engineered stormwater plan and report showing how a project controls runoff volume, peak flow and water quality. $3,000+ Detention and Retention Pond Design Design of detention basins, retention ponds, underground storage and outlet structures to control runoff. $5,000+ Drainage Study and Hydrology Report Hydrologic and hydraulic analysis of a watershed, channel or pipe system to size infrastructure or evaluate flooding. $3,000+ Green Infrastructure and Rain Garden Design Design of rain gardens, bioswales, permeable pavement and infiltration systems to meet stormwater rules or reduce runoff. $1,500+ Flood Elevation Certificate FEMA Elevation Certificate documenting your building's elevation for flood insurance, usually by a surveyor or engineer. $170+ LOMA, LOMR-F and LOMR Flood Map Changes Engineering and survey support to remove a property from a FEMA flood zone or revise a flood map. $500+ Floodplain Development Permit and No-Rise Certification Engineering for building or filling in a floodplain or floodway, including no-rise certifications and floodproofing. $2,000+ V-Zone Coastal Construction Certification Engineer or architect certification of foundations and breakaway walls for buildings in FEMA coastal high hazard (V) zones. $2,000+ Seawall and Bulkhead Design Engineering for new, replacement and repaired seawalls and bulkheads, including permits for work on the water. $2,000+ Dock, Pier and Boat Lift Engineering Stamped design for docks, piers, boathouses and boat lifts where permits require engineered pile and load design. $1,000+ Pond and Small Dam Design Engineering for farm ponds, recreational ponds, small dams and spillways, including state dam safety permits. $2,000+

Foundation Inspection by an Engineer A licensed engineer inspects your foundation, explains what cracks and movement mean, and issues a stamped report. $300+ Foundation Crack Evaluation Is that crack cosmetic or structural? An engineer measures and evaluates foundation, slab and wall cracks. $300+ Foundation Repair Design and Oversight Engineer-designed foundation repairs: pier layouts, underpinning and wall bracing, with inspection and a final letter. $1,000+ Bowing Basement Wall Assessment Evaluation and repair design for bowing, leaning or cracked basement walls caused by soil and water pressure. $400+ Crawl Space and Pier-and-Beam Assessment Engineering evaluation of sagging floors, rotted sills, failing piers and beams in crawl space and pier-and-beam homes. $300+ Foundation Design for a New Home Engineered footing, slab or basement foundation design based on your soils, loads and local code. $1,000+ Manufactured Home Foundation Certification Engineer certification that a manufactured home's foundation meets HUD permanent foundation guidance, often required for FHA and VA loans. $300+ Retaining Wall Failure Assessment Engineer assessment of leaning, cracked or bulging retaining walls with cause, risk and repair or replacement design. $500+

Home Addition Engineering Engineering for room additions and second stories: foundations, framing, beams and site impacts, stamped for your permit. $2,000+ Load-Bearing Wall Removal Engineering An engineer confirms whether a wall is load-bearing and sizes the beam, posts and footings needed to remove it safely. $250+ Deck and Porch Engineering Stamped deck and porch plans and calculations for elevated, large or nonstandard designs outside prescriptive code tables. $500+ Structural Letter for Rooftop Solar A stamped engineer letter confirming your roof framing can carry solar panels, required by many permit offices and installers. $150+ Pole Barn, Garage and Shed Engineering Stamped plans for detached garages, pole barns and large sheds, including post embedment, trusses and snow and wind loads. $500+ Structural Design for a New Home Complete stamped structural design for a custom home: foundation, framing, beams, shear walls and connections. $2,000+ Commercial Building Structural Design Structural engineering for commercial, retail, industrial, multifamily and institutional buildings under the IBC. $5,000+ Facade Inspection (Local Law 11, FISP and City Ordinances) Mandatory facade inspections and reports by licensed engineers or architects under NYC FISP and other city facade ordinances. $3,000+ Balcony and Exterior Elevated Element Inspection (California SB 721 and SB 326) California-required inspections of balconies, decks, stairs and walkways on apartment and condo buildings. $1,500+ Florida Condo Milestone Inspection (SB 4-D) Required structural milestone inspections of Florida condo and co-op buildings three stories or taller by a licensed architect or engineer. $5,000+ Structural Integrity Reserve Study (SIRS) Florida-required reserve study of structural components for condo buildings three stories or taller, prepared by qualified professionals. $3,000+ Parking Garage Condition Assessment (incl. NYC Local Law 126) Structural condition assessments, repair design and mandated inspections for parking garages and decks. $3,000+ Seismic Retrofit and Soft-Story Ordinances Engineering for mandatory soft-story and other seismic retrofits, including Los Angeles and San Francisco programs. $10,000+ House Bolting and Cripple Wall Bracing Engineered or standard-plan bolting and cripple wall bracing to keep older raised-foundation homes on their foundations. $500+ Hurricane and Wind Mitigation Engineering Wind mitigation inspections, roof-to-wall connection upgrades and hurricane retrofit design for coastal homes and buildings. $100+ Steel and Concrete Structural Repair Design Engineered repairs for corroded steel, cracked or deteriorated concrete, damaged beams and columns. $2,000+ Concrete Spalling and Balcony Slab Repair Design Engineering for spalling concrete, exposed rebar and deteriorated balconies, slabs and columns, common in coastal and older buildings. $2,000+ Building Envelope and Water Intrusion Investigation (Structural Scope) Investigation of leaks that damage structure: rotted framing, corroded connections and deteriorated walls, with repair design. $2,000+ Tower, Sign and Antenna Structural Analysis Structural analysis for cell towers, rooftop antennas, billboards, monument signs and light poles, including mount upgrades. $1,000+ Crane Pad and Temporary Works Design Engineering for crane pads, outrigger mats, temporary bracing, falsework and other temporary structures on construction sites. $1,000+ Underpinning Design Engineered underpinning to deepen or strengthen foundations for basements, adjacent excavation or settlement. $3,000+ Sinkhole Repair Design Engineered grouting and underpinning plans to stabilize homes and sites after a sinkhole is confirmed. $2,000+

Geotechnical Report Soil borings, lab tests and a stamped geotechnical report with foundation, pavement and earthwork recommendations. $1,000+ Soil Boring and Soil Testing Soil borings and lab testing to learn what is underground before you design or build. $750+ Soil Compaction and Construction Materials Testing Field density testing of fill, backfill and subgrade so foundations, slabs and pavement are built on properly compacted soil. $190+ Sinkhole Investigation Ground penetrating radar, borings and engineering analysis to confirm or rule out sinkhole activity under a property. $800+ Slope Stability and Landslide Assessment Evaluation of slopes, landslides and erosion threatening homes, roads or development, with stabilization design. $3,000+ Expansive Clay Soil Evaluation Testing and engineering for shrink-swell clay soils that crack foundations, slabs and driveways. $1,000+ Excavation Shoring and Trench Protection Design Engineered shoring, trench boxes and excavation support required by OSHA for deep excavations. $2,000+

Septic System Design Engineered septic system design for new homes, additions and failed systems, including alternative and mound systems. $1,000+ Soil Percolation (Perc) Test Perc and deep hole soil testing to determine whether land can support a septic system, and what type. $200+ Failed Septic and Drain Field Replacement Design Diagnosis of a failing septic system and engineered design for a replacement drain field or upgraded system. $1,000+ Water and Sewer Utility Design Design of water mains, sanitary sewers and service connections for developments, extensions and utility upgrades. $5,000+ Sewer Lift Station and Grinder Pump Design Design of pump stations and grinder pump systems where sewage cannot flow to the sewer by gravity. $3,000+ Sewer Lateral and Service Connection Design Plans for connecting a home or building to public sewer or water, including septic abandonment and long laterals. $500+ Fire Flow and Water Main Analysis Hydrant flow testing and hydraulic analysis to show a site has enough water for fire protection and domestic use. $1,500+ Water and Wastewater Treatment Design Engineering for municipal and industrial water and wastewater treatment plants, package plants, upgrades and permits. $50,000+ Lead Service Line Inventory and Replacement Program Engineering support for water systems to inventory and replace lead service lines under EPA's lead rules. $20,000+

Traffic Impact Study A traffic engineer estimates trips from your project and their effect on nearby roads, as required for many approvals. $5,000+ Traffic Control Plan (Work Zone) Work zone traffic control plans for construction in or near roads, following the federal MUTCD. $500+ Pavement Design and Evaluation Engineered asphalt and concrete pavement sections for roads, parking lots and driveways, plus failing pavement assessments. $1,500+ Private Road and Subdivision Street Design Design of private roads, subdivision streets and long shared driveways, including grades, drainage and fire access. $5,000+ Commercial Driveway and State Highway Access Permit Access design and permit applications for commercial entrances onto city, county or state DOT roads. $2,000+ Culvert Design and Replacement Hydraulic design of culverts under roads and driveways, including fish passage and replacement of failing pipes. $2,000+ Bridge Design Design of new and replacement bridges, from private driveway crossings to municipal and DOT bridges. $10,000+ Bridge Inspection and Load Rating Routine, in-depth and load rating inspections of public and private bridges by qualified engineers. $1,500+

Stormwater Pollution Prevention Plan (SWPPP) SWPPP preparation and permit coverage for construction sites disturbing 1 acre or more, as required under the Clean Water Act. $1,000+ Erosion and Sediment Control Plan Erosion and sediment control drawings for grading permits, showing silt fence, inlet protection, stabilization and phasing. $500+ ADA Site Accessibility Compliance Survey and design of accessible parking, ramps, curb ramps and routes to meet the 2010 ADA Standards. $1,500+ Wetland Delineation and Section 404 Permitting Wetland delineations and Army Corps Section 404 and state permits for filling or crossing wetlands and streams. $2,000+ Phase I Environmental Site Assessment ASTM E1527-21 Phase I ESA to identify contamination risk before buying or financing commercial property. $1,500+ SPCC Plan Certification Spill Prevention, Control and Countermeasure plans certified by a professional engineer for facilities storing oil. $1,500+ Industrial Stormwater Permit Compliance Industrial stormwater SWPPPs, monitoring and corrective action under EPA's Multi-Sector General Permit or state permits. $2,000+ MS4 Stormwater Program Support Engineering support for cities and counties meeting municipal separate storm sewer system permit requirements. $10,000+ Town and Municipal Engineer Services Consulting engineers serving as town or village engineer: plan review, inspections, capital projects and grants. $100+

Structural Engineer Letter for Mortgage (FHA, VA, Conventional) A stamped engineer letter a lender or underwriter requires when an appraisal or inspection flags a structural concern. $300+ Structural Inspection Before Buying a Home An independent engineer examines the house structure before you buy, beyond what a general home inspection covers. $350+ Special Inspections and Construction Testing IBC Chapter 17 special inspections of concrete, steel, soils, masonry and other critical work on commercial projects. $5,000+ As-Built and Record Drawings Surveyed as-built drawings and engineer certification of completed site, utility and stormwater work for permit close-out. $1,000+ Property Condition Assessment (PCA) ASTM E2018 property condition assessments for buyers and lenders of commercial and multifamily property. $1,500+ Dam Safety Inspection Periodic dam safety inspections, emergency action plans and repairs for private and public dams. $2,000+

Civil Engineering Expert Witness Licensed civil and structural engineers who review cases, write expert reports and testify in depositions and trials. $250+ Construction Defect Investigation Independent investigation of defective construction: foundations, framing, drainage, concrete and site work. $1,500+ Storm and Insurance Claim Structural Assessment Independent engineering reports on storm, wind, flood, impact and collapse damage to support or evaluate insurance claims. $500+ Fire Damage Structural Assessment Engineering evaluation of fire-damaged buildings to decide what framing, steel and concrete can stay and what must be replaced. $1,000+ Neighbor Drainage and Flooding Dispute An engineer documents where water comes from and whether a neighbor's grading or construction is causing your flooding. $1,000+ Trip and Fall and Premises Safety Engineering Expert Engineers who measure sidewalks, stairs, ramps and parking lots and testify about walking surface hazards and code compliance. $250+ Forensic Engineering and Failure Analysis Investigation of structural collapses, failures and accidents to determine cause, for owners, insurers and attorneys. $2,500+ Preconstruction Condition Survey and Vibration Monitoring Before-and-after documentation of nearby buildings plus vibration and movement monitoring during construction or blasting. $1,000+ Substantial Damage and Substantial Improvement Determination Support Engineering and cost support for floodplain substantial damage and substantial improvement determinations after disasters. $1,000+