Commercial Cleaning & Janitorial Services in New Haven, CT

We provide dependable facility maintenance solutions in New Haven and throughout South Central Connecticut.

Local Facility Maintenance in New Haven

We support facilities across New Haven, including Downtown, Wooster Square, East Rock, Westville, Long Wharf, and the Yale University district.
Our teams maintain education campuses, healthcare centers, and research environments throughout South Central Connecticut, where every program integrates cleaning, facility maintenance, and clear accountability.
GDI Ainsworth is proud to deliver reliable performance to clients across the New York Tri-State Area.
Cleaning
111 Kendall St.
New Haven, CT .
06512
P: 203-624-3200
F: 203-624-9645
Show Places
Empire State Building
New York
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Commercial Cleaning Services

Our commercial cleaning services are built around consistency, safety, and clear communication, so your New Haven facility performs at its best every single day.

Janitorial Services

Our janitorial services use structured routines and trained oversight to keep your building clean, compliant, and inspection-ready.

Office Cleaning

Office cleaning programs follow your workflow, supporting organized, productive spaces without interrupting daily operations.

Floor and Carpet Cleaning

With deep extraction and refinishing methods, our floor and carpet cleaning protects surfaces and preserves appearance.

Disinfection Services

Our disinfection services use hospital-grade products and targeted applications to reduce pathogens and support healthier environments.

Window Washing & Building Maintenance

We provide window washing and building maintenance that protects exterior materials and maintains a polished, professional look.

Integrated Facilities and Maintenance Services

Through our Integrated Facility Services, we connect cleaning, maintenance, and reporting to strengthen efficiency and accountability across every site.

Industries Served in New Haven

Our cleaning and facility maintenance programs adapt to the operational needs of offices, healthcare, education, manufacturing, and public venues, delivering reliable quality, compliance, and safe environments across all sectors.

Why Choose Us

With a century of experience, we bring disciplined processes, measurable performance, and dependable service to facilities throughout New Haven and South Central Connecticut.

Strengthen Your Operations With Trusted Facility Maintenance

Partner with a team committed to clean, safe, and dependable facilities across South Central Connecticut. Contact us to build a facility maintenance program tailored to your operational needs, with clear accountability and consistent performance you can rely on.

Meet Your Experts

Regional Experts

Robert Consla

Regional Vice President 

[email protected] 

Steve Sadler Executive Strategic Adviso [email protected] 

William (Bill) Thomas

Vice President of Operations

[email protected] 

A century of experience

A future of innovation

GDI's Story Begins

Robertson Janitorial Ltd. began as a small, reliable cleaning service supporting Quebec City’s growing economic landscape. With a focus on consistency and care, the company steadily grew. 

Ainsworth is Founded

Brothers F.C. and C.J. Ainsworth establish an electrical services company that grows into a technical services leader.  

Two Leaders Join Forces

GDI acquires Ainsworth, bringing facility and technical services together in one North American organization.

Celebrating 100 Years

GDI and Ainsworth are uniting under the name GDI Ainsworth: one company, one culture, and one vision for the future.

Thank you for being part of our journey.
Together, we're ready for the next 100 years.