Commercial Cleaning & Janitorial Services in Portland, ME

Local Facility Maintenance in Portland

We serve businesses in Portland’s core neighborhoods and beyond, including the Old Port, East End, West End, Deering Center, Bayside, and the downtown waterfront.

Our teams support hospitals, schools, and manufacturing operations across Southern Maine.

Wherever your business is located in Coastal Maine, GDI Ainsworth provides integrated cleaning and facility maintenance services focused on safety, reliability, and measurable outcomes for every site.

Portland, ME

170 John Roberts Road, Unit 5
South Portland, Maine
04106

207-775-1015

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Commercial Cleaning Services

GDI Ainsworth provides reliable, sustainable cleaning solutions using proven methods, green-certified products, and modern technology to maintain clean, safe, and efficient facilities across Portland.

Janitorial Services

Comprehensive janitorial programs tailored to your facility’s needs, ensuring dependable cleanliness, comfort, and safety in every space we maintain.

Office Cleaning

Professional office cleaning that supports productivity and presentation through detailed service for offices, common areas, and shared work environments.

Floor and Carpet Cleaning

Specialized care for hard floors and carpets using advanced floor and carpet cleaning systems to protect surfaces, extend lifespan, and maintain a polished appearance.

Disinfection Services

Our Clean for Health approach combines high-touch disinfection and preventative protocols to improve hygiene and occupant wellbeing throughout your facility.

Window Washing & Building Maintenance

Comprehensive window and exterior cleaning that enhances curb appeal, natural light, and building safety for a lasting impression.

Integrated Facilities and Maintenance Services

Our Integrated Facility Services combine janitorial and technical expertise under one GDI Ainsworth team for seamless operations and measurable efficiency.

Industries Served in Portland

From healthcare and higher education to technology, manufacturing, and commercial real estate, GDI Ainsworth supports Portland’s leading industries with integrated cleaning, maintenance, and technical services that keep facilities efficient, safe, and fully operational.

Why Choose Us

Partnering with GDI Ainsworth means gaining a trusted facility services provider focused on reliability, innovation, and long-term value. Our local expertise and technology-driven approach keep your buildings operating at peak performance.

Local Expertise: Experienced teams with deep knowledge of Portland’s commercial, healthcare, and industrial environments ensure consistent, high-quality service delivery.
Comprehensive Service Range: One partner for cleaning, maintenance, and technical solutions that simplify operations and improve efficiency.
Certified Quality Management: Backed by ISO 9001 and ISO 14001 certifications, ensuring quality, compliance, and sustainability in every project.
Proprietary Inspection Tools: FotoFinish and FotoFeedback technology provide transparent performance tracking and measurable results.
Eco-Friendly Practices:Green products and environmentally sustainable programs minimize waste and environmental impact.
Advanced Technology Integration: Advanced technologies like GDI Tracker (IoT) and the Cleaning Services Portal enhance visibility and accountability.
Safety and Compliance Focused: Strict adherence to safety standards through Avetta, ISNetworld, COR, and CIMS / ISSA certifications.
24/7 Support and Dedication: Our Network & Operations Centre provides around-the-clock monitoring and rapid response for uninterrupted facility performance.