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One Team. Every Discipline. Infinite Solutions

Professional Engineering

About Us

About Us

At HSP, we are driven to deliver creative, efficient , and cost-effective engineering solutions that turn complex challenges into opportunities that help clients achieve their goals with confidence

HSP Engineering and Environmental Services (H.S.P. Consultants Inc.) is a 100% Canadian-owned, multi-disciplined engineering and environmental services firm, proudly serving clients since 1984. Headquartered in Long Sault, Ontario, just west of Cornwall, we provide services across Eastern Ontario, The 401 Corridor, Ottawa, and Northern Ontario. For more than 40 years, HSP has been delivering professional, reliable, and client-focused engineering services.

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At HSP, we are driven to deliver creative, efficient , and cost-effective engineering solutions that turn complex challenges into opportunities that help clients achieve their goals with confidence

HSP Engineering and Environmental Services (HSP Inc.) is a 100% Canadian-owned, multi-disciplined engineering and environmental consulting firm, proudly serving clients since 1984. Headquartered in Long Sault, Ontario, just west of Cornwall, we provide services across Eastern Ontario, The 401 Corridor, Ottawa, and Northern Ontario. For more than 40 years, HSP has been delivering professional, reliable, and client-focused engineering services to residential, commercial, institutional and industrial sectors.

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Our Story

Originally established to support the region’s rapidly expanding industrial sector—particularly the pulp and paper, manufacturing, and processing industries—our firm was founded on a commitment to practical engineering solutions that strengthened local industry. In these early years, we played a key role in supporting industrial growth throughout Eastern Ontario and became known for our responsive service, technical expertise, and ability to deliver cost-effective designs tailored to the unique needs of industrial clients.

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As the region evolved, so did we. By the late 1990s, our firm expanded into commercial, municipal, and residential projects, supporting everything from affordable housing developments and commercial fit-ups to subdivisions, roads, municipal servicing infrastructure, and environmental assessments. This broader client base allowed us to grow into a fully multidisciplinary engineering and consulting practice capable of supporting diverse public and private sector initiatives.

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A Firm Rooted in Community

Beyond the work we deliver, our identity has always been shaped by the communities we serve. As a locally established firm, we are deeply invested in supporting regional growth, economic development, and community well-being. Over the years, we have proudly contributed to a variety of community initiatives, local organizations, and youth programs—reflecting our belief that strong communities and strong businesses grow together.

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Our team has been active supporters of:

  • Local youth sports organizations, including hockey, lacrosse, and soccer programs

  • Community fundraisers and charitable events throughout Cornwall and surrounding areas

  • Local educational initiatives, providing mentorship, co-op placements, and career opportunities for emerging engineers and technologists

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Continuing a Tradition of Local Leadership

Today, we remain committed to the same principles that shaped our early success: practical, dependable engineering rooted in local knowledge and delivered by a team that cares deeply about community impact. Our history reflects steady, organic growth—built on long-standing relationships, trust, and a dedication to helping clients and communities achieve their vision.

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As we look to the future, we continue to invest in modern engineering practices, sustainable design, new technologies, and the next generation of talent—ensuring we remain a capable, community-focused partner for decades to come.

Professional Memberships

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Our Team

Our Team

Services

Services

HSP Engineering & Environmental Services is a trusted, full-service consulting firm providing mechanical, electrical, structural, civil, and environmental engineering solutions across Ontario and beyond. With over 40 years of experience, our multi-disciplinary team delivers innovative, cost-effective, and well-managed designs that help clients achieve lasting results. From site development and building systems design to environmental assessments and compliance support, we offer a seamless, integrated approach tailored to every project. Our strength lies in combining big-firm capability with small-firm agility, ensuring responsive service, technical precision, and dependable results — every time.

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New Building Design

  • BCIN Design and Architectural Services

  • Civil Engineering & Site Plan Control

  • Building Structure and Foundation

  • Plumbing & HVAC-R Engineering

  • Power Distribution & Lighting

  • Fire Alarm & Life Safety

  • Project Management and Prime Consulting​

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Building

Services

  • Comprehensive Tenant Fit-Ups (Salons, Offices, etc.)

  • Building Energy Modelling and HVAC

  • Commercial Kitchens

  • Sprinkler and Fire Protection

  • Seismic Restraint Design

  • Arc Flash & Electrical Load Analysis

  • Building Condition Assessments

  • Equipment and Systems Commissioning

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Land Development. Site Design and Transportation

  • Site Plan Control

  • Site Servicing (Domestic Water; Sanitary and Storm Sewers)

  • Stormwater Management

  • Roads and Parking Lots

  • Site Lighting

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Environmental

Services

  • Environmental Site Assessments

  • Envronmental Compliance Approvals

  • NPRI (National Pollutant Release Inventory)

  • Designated Substance Surveys

  • Groundwater and Surface Water Sampling.

  • ​Air Quality and Noise Assessment

  • Emissions Modelling

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Industrial  Services

  • Structural Assessments, Concrete and Steel Detailing

  • Process Piping Design

  • API 650 Tank Design & ASME Pressure Vessel Design

  • Equipment Layout and Integration

  • Machine Design

  • Regulatory Compliance (TSSA, ESA, MOE, MOL)

  • Pre-Start Health and Safety Reviews

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Residential

Services

  • New Houses and Accessory Buildings

  • Renovations

  • Additions

  • Slab on Grade Foundations

  • Grading Plans and Septic System Design

  • Decks

  • HVAC Design

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Contact Us

Contact

5715 Warner Dr.

Long Sault, Ontario, Canada

K0C 1P0

(613) 932-3289

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