Ranked on public signals: website quality, contactability, and service fit. Updated October 2026. No paid placements, and no customer reviews are collected or shown; every business was found in public listings or added by its owner, and all are scored the same way.
Gaithersburg is a built-out Montgomery County suburb with dense residential-services demand. Residential and commercial cleaning, weekly service, move-out deep cleans, post-construction cleanup, and window cleaning.
We indexed 4 cleaning services serving Gaithersburg and surrounding neighborhoods, including Old Town, Kentlands, Montgomery Village. Each firm is scored on a consistent set of data signals: website health, HTTPS security, mobile-friendliness, online contactability, and alignment with the cleaning services niche. The ranking is fixed by data, not by who pays the most to appear at the top.
Of the 4 cleaning services listed for Gaithersburg, 4 run a secure (HTTPS) website, 4 publish a phone number and 4 have their business name confirmed on their own website.
If you live in Gaithersburg, MD and need a cleaning service, this page is a starting point, not an endorsement. Call two or three from the list, get written estimates, and compare. The numbers next to each business are a filter, not a decision.
In their words
Professional Maid Service in Gaithersburg, MD Finding a top-rated maid service in Gaithersburg shouldn't be a hassle.
In their words
Our house cleaning service rates in Gaithersburg, MD vary based on home size, cleaning frequency, and specific needs. We offer competitive pricing for regular weekly, bi-weekly, and monthly cleaning services.
In their words
Mold testing services by O2 Mold Testing of Gaithersburg: your trusted mold testing company in Gaithersburg, MD. Call us at 301-349-3433 for mold inspection.
Run a business that belongs on this page? Add it to PicksByTown.
Each business is scored on signals we can verify from public data: a live, secure (HTTPS) website, mobile-friendliness, a published phone number and website, and fit with the cleaning services category. We do not collect or display customer reviews, and we do not accept payment for placement. Businesses can claim their listing to correct contact details, but the rank is fixed by the data. Owners can claim a listing for a Verified badge and a direct link; sponsors appear only in labeled blocks outside the numbered list. Neither changes rank.
Sources: US Census Bureau, ACS 2024 5-year estimates for Flower Hill, MD, via Census Reporter; Open-Meteo historical weather archive, 2015-2024 averages.
Nearby directories for the same trade: Rockville (8 ranked), Silver Spring (6 ranked), Columbia (10 ranked).
Each listing is scored on public signals we can check ourselves: whether the website is live and secure (HTTPS), whether it works on a phone, whether a phone number and website are published, and how closely the business matches the cleaning services category. We do not collect customer reviews, so no star ratings or review counts appear here, and no business pays for placement.
Use this list to shortlist two or three cleaning services, then read their Google reviews yourself, confirm license and insurance, and get written estimates before committing. The score here is a filter, not a verdict.
Licensing in Maryland runs through the Maryland Home Improvement Commission (MHIC) under the Department of Labor. Before hiring anyone in Gaithersburg, look the contractor up in the Maryland Department of Labor's public license search and ask for their MHIC number; plumbers, electricians, and HVAC techs are licensed by their own state boards. Also confirm current liability insurance, and get the license number in writing on the estimate.
This page lists ProClean Air Duct & Carpet Cleaning, Alliance Maid Services, Nice Maids Cleaning and O2 Mold Testing, in ranked order. All of them publish a phone number, so you can call directly.
The cleaning services on this page serve all of Gaithersburg and surrounding areas, including Old Town, Kentlands, Montgomery Village. Response times and service radius vary, call ahead for estimates.
When new providers are added or the ranking changes, we’ll let you know. No spam. Unsubscribe anytime.