Explore Our Services

We deliver civil engineering solutions for residential, commercial, and public projects across Massachusetts. From initial concept through detailed design and construction support, we provide durable, code-compliant infrastructure designed to fit your budget and schedule. Services include utility design, sewer and water connections, driveways and access, and drainage improvements.

Our site design services turn raw or underused land into functional, buildable parcels. We handle plot plans, grading, drainage, utility layout, erosion control, and stormwater management to create sites that work for owners, developers, and municipalities alike.

We provide stamped structural plans and calculations for residential and light commercial projects across Massachusetts. Typical work includes load-bearing wall removals and beam sizing, decks and porches, additions and dormers, foundations and footings, structural repairs such as rotted sill and joist sistering, retaining walls, basement ADU conversions, and roof structural reviews for solar installations. We work directly with homeowners, contractors, and architects to produce clear, buildable drawings that meet the Massachusetts State Building Code and get through your local building department without delays.

We provide civil and structural design for rooftop and ground-mounted solar arrays across Massachusetts. For rooftop systems, we evaluate existing framing, design attachments, and specify reinforcement where needed. For ground mounts, we provide foundation, layout, and site design. Our goal is to help installers and owners get clean energy projects permitted and online faster.

Drawing on more than a decade of rail and transit design experience, SEG provides track, roadway, grade crossing, and multimodal design support for public and private clients, in accordance with MassDOT standards, MBTA guidelines, and freight railroad requirements.

Permitting (replace the description, since the current text is the planning paragraph)
We prepare and submit the drawings, calculations, and supporting documents needed for building permits, site plan approvals, zoning filings, and conservation submittals. We also respond to building department and peer review comments through to approval, so you aren’t left translating engineering questions on your own.

Our planning services guide projects from early idea to an approvable plan. We provide feasibility studies, site assessments, zoning and lot reviews, and conceptual layouts that show what a property can realistically support before you invest in full design. We balance development goals with environmental constraints, community needs, and regulatory requirements so your project starts on solid footing.

We offer construction-phase support including site visits, field inspections, construction observation letters, contractor RFIs, and design adjustments when field conditions don’t match the plans. Our focus is keeping the work built to spec and the project moving, with quick answers when problems come up.