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Business Details
50+ Years
experience
Professional Window Cleaning Services in Des Moines, IA
Larry's Window Service has been delivering high-quality window cleaning solutions to residential and commercial clients across Central Iowa since 1969. Founded by Larry O'Connor, our company has evolved from a one-person operation to a team of over 55 dedicated professionals, now led by Larry's sons Carl and Dean O'Connor. We specialize in high-rise and low-rise window cleaning, post-construction detailing, glass restoration, gutter maintenance, and exterior pressure washing, serving both homes and businesses. Our commitment to excellence is underscored by industry certifications including OSHA 10/30, SIA, IWCCI, and SAIA accreditations, ensuring safety and compliance with the highest standards.

With decades of experience, we provide personalized service plans tailored to each client's needs, offering free phone estimates and on-site consultations. Our reputation for reliability and quality has earned us longstanding relationships with major clients like Principal Financial Group and Mercy Medical Center, as well as over 90% of our residential business coming from word-of-mouth referrals. We pride ourselves on combining technical expertise with customer-centric service, ensuring every project meets budgetary and quality expectations while maintaining the trust of our community.
Services
High Rise Window Cleaning Residential Window Cleaning Gutter Cleaning Pressure Washing Anchor Point Inspection
Details
  • Year established: 1969
Highlights and features
  • Family-owned since 1969 with generational expertise
  • Over 55 employees serving all of Iowa
  • Free phone estimates and personalized on-site quotes
  • 90% of residential business from trusted referrals
  • Safety-certified technicians with OSHA and IWCCI credentials
Associations and certifications
  • OSHA 10 Hour Certification
  • OSHA 30 Hour Certification
  • SIA Certification
  • IWCCI Certification
  • IFMA International Facilities Management Association
  • IREM Institute of Real Estate Management
  • IWCA International Window Cleaning Association
  • SAIA Scaffold Industry Association
  • BOMA Iowa Building Owners and Managers Association
What people say
Clean your neighbors house Free estimates Competitive pricing Family-owned since 1969 Safety certifications
Services
High Rise Window Cleaning
Our team provides expert high-rise window cleaning for commercial buildings, ensuring safety and precision. Using advanced equipment and OSHA-certified protocols, we maintain skyscrapers and office towers across Central Iowa. Clients trust us for consistent quality and compliance with industry standards.
Residential Window Cleaning
We offer thorough residential window cleaning for homeowners, including screens and gutters. Our trained staff delivers consistent pricing and seasonal discounts. Over 90% of our residential clients return due to our reliable, high-quality service and personalized approach.
Anchor Point Inspection
We inspect and certify roof anchor points to meet OSHA and ANSI safety standards. Our experts ensure fall protection systems remain compliant through annual checks, protecting workers and minimizing liability for property owners across Iowa.
Pressure Washing
Our pressure washing services clean concrete, stone, and home exteriors efficiently. This service prepares surfaces for painting and maintains property aesthetics. We use specialized equipment to handle both residential and commercial projects.
Gutter Cleaning
We provide comprehensive gutter cleaning to prevent water damage. This service includes debris removal and drainage checks, ensuring proper function of residential and commercial roofing systems throughout Iowa's changing seasons.
People
Larry O'Connor
Founder
Founded Larry's Window Service in 1969, establishing a legacy of quality window cleaning services in Central Iowa.
Carl O'Connor
Co-Owner
Co-owns and operates the business since 2000, continuing his father's commitment to excellence in window cleaning.
Dean O'Connor
Co-Owner
Co-owns the company with his brother Carl, managing daily operations and client relationships since 2000.
Questions
What areas do you service?
We serve all of Iowa including Des Moines, Ames, Ft Dodge, Waterloo, Cedar Falls, Cedar Rapids, Iowa City, Dubuque, and surrounding areas.
Do you offer free estimates?
Yes, we provide free phone estimates for all residential and commercial window cleaning services.
Are your technicians certified?
Our team holds OSHA 10/30, SIA, IWCCI, and SAIA certifications ensuring safety and professional standards.
What residential services do you offer?
We clean windows, screens, gutters, and offer exterior house washing, deck cleaning, and pressure washing services.
How do you handle commercial projects?
We provide building assessments, customized cleaning schedules, and have 55+ employees to meet client deadlines efficiently.
Do you inspect safety anchor points?
Yes, we test and document roof anchor point systems to ensure OSHA compliance and worker safety.
Reviews (5)
Desiree Reichenbacher
May 14, 2020 Report
We just had our windows cleaned inside and out by Larry's Building Services. 2 young men Jas and Albert I believe was their names. Professional, Kind, respectful, and did an outstanding Job! Not gonna lie. Our windows were bad. They now sparkle! These professional young men did not cut any corners :- Would hire your services and recommend you in a heart beat. Thank you
Mike Rodin
Apr 11, 2020 Report
We've had the guys from Larry's Window Service doing our office windows since 2005. They always do a very complete and thorough job and are polite and easy to work with. Not to mention, their pricing is very reasonable! I would highly recommend them if you are in the market for window cleaning or any of the other services they provide.
Rosalie P.
Jan 17, 2020 Report
Larry's Window Service is the best window cleaning company. I first used them last year and their work was outstanding. Naturally, I called them again this year and will contact to do so. Very reasonably priced, prompt, accommodated my schedule. Very friendly on the phone. You won't be disappointed.
Todd Dunkel
Nov 23, 2018 Report
We use Larrys Windows twice a year. Every time they come out, their personnel are polite, hard working, and our windows look awesome! After they visit our home, the view through all windows is renewed, and our home is that much more enjoyable. Thank you.
Shan Seivert
May 23, 2018 Report
Larry's Window Service came highly recommended to me by a friend, so I thought I would give them a try. On Sunday afternoon An Deo and Doyle washed my windows. They were friendly, professional, quick and did a fabulous job! I will recommend Larry's Windows to others.