Commercial Cleaning & Janitorial Services in Manchester, HM

GDI Ainsworth delivers reliable commercial cleaning and facility maintenance services for businesses in Manchester and South-Central New Hampshire.

Your Partner for Facility Maintenance in Manchester

Our facility maintenance teams support clients across Manchester, Bedford, Hooksett, and Goffstown, extending throughout Hillsborough County and South-Central New Hampshire.
We service properties near landmarks like the SNHU Arena, Manchester-Boston Regional Airport, and the historic Amoskeag Millyard.
From office towers downtown along the Merrimack River to light industrial zones near I-93 and I-293, our cleaning and maintenance programs ensure every facility stays safe, efficient, and consistently well-managed.
Manchester, HM
81 Ross Ave
Manchester, NH
03103
800-696-2676
Show Places
Empire State Building
New York
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Commercial Cleaning Services

Our commercial cleaning services in Manchester combine precision, sustainability, and accountability. Our teams help businesses maintain clean, healthy, and efficient facilities built to perform.

Janitorial Services

Our janitorial services in Manchester are structured around reliability, providing thorough daily cleaning that keeps every facility inspection-ready and consistently maintained.

Office Cleaning

We build flexible office cleaning programs that fit your workflow, ensuring neat, hygienic spaces that foster productivity and professionalism.

Floor and Carpet Cleaning

Our floor and carpet cleaning programs protect and enhance surfaces through deep extraction, refinishing, and ongoing maintenance tailored to your facility.

Disinfection Services

We use hospital-grade disinfection protocols and touchpoint-focused methods to reduce germs and maintain healthier environments for employees and guests.

Window Washing & Building Maintenance

Our professional window washing and building maintenance keeps properties in Manchester bright, safe, and professional, no matter the season.

Integrated Facilities and Maintenance Services

Align cleaning and maintenance under one trusted partner with our Integrated Facility Services, improving communication, efficiency, and overall performance.

Industries Served in Manchester

From downtown office buildings and healthcare facilities to distribution centers along the Route 3 corridor, GDI Ainsworth supports Manchester’s evolving commercial and industrial landscape, and business of all sizes.

Why Choose Us

With a century of experience, we understand what it takes to maintain operational excellence. In Manchester, our focus on consistency, safety, and measurable quality ensures your facility performs at its best every day.

Connect With Our Maryland Heights Facility Experts

We design maintenance programs that align with your operational goals, from efficiency to safety and long-term reliability. Contact us today to customize cleaning and maintenance solutions for your Manchester and South-Central New Hampshire facilities.

Meet your Experts

Cleaning Services

Local Experts

Frank Moura

Director of Operations

[email protected] 

Nancy Miller

Business Development Administrator

[email protected] 

Camila Da Silva

HR Coordinator

[email protected] 

Regional Experts

Carlos Arruda

Director of Operations

[email protected] 

Brian Lockwood

Regional Vice President

[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.