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Locally Owned on Cape Cod Since 2008

Cape Cod's Professional Cleaning Company

Sentinel Cleaning Company is a locally owned cleaning service based in Hyannis, MA, serving all of Cape Cod since 2008, founded by Priscilla Barbosa. We provide residential cleaning, commercial cleaning, vacation rental turnover, move-in/move-out cleaning, carpet extraction, and window cleaning, available 7 days a week, including evenings. Call 774.810.5165 for a free quote.

18+Years of Experience
120+Happy Clients Monthly
7/7Days Available
4.9★Google Rating

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4.9
★★★★★
Excellent · Based on 11 reviews · Google

Real Words from Real Clients

★★★★★

"We have used Sentinel Cleaning for almost 10 years. Their attention to detail is amazing. When they leave our house is absolutely spotless. I highly recommend having Priscilla and her team clean your house. I promise you won't be disappointed."

MF
Michael Fox
4 months ago
★★★★★

"Extremely impressed with Sentinel Cleaning. Priscilla and her team were courteous, efficient, and truly beyond professional. Everything was spotless and looked better than I expected. Communication was easy and the quality of work was top-tier. A++"

JD
James D
4 months ago
★★★★★

"Priscilla Barbosa and her amazing team have been helping with our home for nearly 20 years. Their attention to detail is way beyond any other cleaning service we've ever hired."

JR
Joseph Rabatin
4 months ago
★★★★★

"Priscila and her workers are very nice, honest, and hard working. They aim to please, will do anything you ask, and take pride in their work. They are the best cleaners I've ever had. When they clean your house, you'll never need spring cleaning."

JK
Josee Klentak
4 months ago
★★★★★

"Sentinel Cleaners is scheduled with us monthly and each time Priscilla and her team always arrive cheerful and professional. Their level of commitment to detail and quality is top notch. Our service now goes back 5-6 years."

BW
Bernie Weiss
4 months ago
★★★★★

"The team did a fantastic job paying attention to every detail, from the dusting to the vacuuming. The whole place looks sparkling clean and feels so fresh. Thank you so much for your hard work and dedication!"

NV
Nayara Victoria Rocha
4 months ago

Everything Your Space Needs

From deep cleans to daily maintenance, a complete range of cleaning solutions for homes and businesses across Cape Cod.

Transform any room, removing accumulated dirt and revitalizing every surface.

Detailed move-in/move-out cleaning to make your transition smoother.

We prep your vacation property for new guests and unforgettable moments.

Daily or scheduled custodial services for a clean professional environment.

On-site support to keep your business clean and running smoothly all day.

Deep-clean carpets to remove dirt, stains, and allergens.

Expert cleaning, polishing, and refinishing for all hard floor types.

Streak-free, crystal-clear windows inside and out.

Residential Cleaning

Personalized solutions designed to make your home shine, from kitchens and bathrooms to bedrooms and living spaces. Weekly, bi-weekly, monthly, or one-time options, all tailored to your schedule and lifestyle.

See house cleaning plans →

Commercial Cleaning

Exceptional services for offices, retail spaces, educational institutions, healthcare facilities, and more. Daily, weekly, or customized schedules to fit your operation perfectly.

See commercial services →

Reset Your Home After a Busy Summer

September to December is when Cape Cod homes need a different kind of clean: removing summer wear, closing seasonal homes and getting ready for holiday guests.

Fall Deep Cleaning

Reset your Cape Cod home after a busy summer season. Baseboards, grout, inside appliances, vents and every surface guests touched.

Fall cleaning checklist →

Seasonal Home Closing Cleaning

A detailed clean before your vacation home closes for winter: appliances emptied and sanitized, textiles laundered, floors washed.

How to close a Cape Cod home →

Fall Carpet and Window Cleaning

Remove summer sand, salt film and heavy seasonal buildup from carpets and glass before the house is closed or guests arrive.

Window cleaning →

Thanksgiving and Holiday Cleaning

Get guest-ready before Thanksgiving and Christmas, then let us handle the post-party reset.

Holiday cleaning checklist →
Book Your Fall Cleaning

What Makes Us Stand Out

We go beyond clean. Here's why over 120 clients across Cape Cod trust Sentinel month after month.

Serving Cape Cod Since 2008

Transforming spaces with professionalism since 2008.

Total Availability

7 days a week, including night hours, on your schedule.

Personalized Service

Every cleaning plan tailored to your exact needs and space.

Guaranteed Results

120+ satisfied clients every month, every time.

Regional Coverage

All of Cape Cod and neighboring areas covered.

We Serve All of Cape Cod

02601 - Hyannis 02630 - Barnstable 02632 - Centerville 02633 - Chatham 02645 - Harwich 02646 - Harwich Port 02648 - Marstons Mills 02649 - Mashpee 02655 - Osterville 02657 - Provincetown 02660 - South Dennis 02664 - South Yarmouth 02668 - West Barnstable 02673 - West Yarmouth 02675 - Yarmouth Port + Surrounding Areas

Excellence in Every Detail, Every Time

We offer total flexibility to ensure our services fit perfectly into your schedule, available Sunday to Sunday, including convenient evening hours.

Our goal is to provide customized cleaning solutions specifically designed to meet your unique needs, whether for your home or business. With a dedicated focus on quality, precision and attention to detail, we go above and beyond every single time.

Book Your Cleaning

Sunday to Sunday

Total flexibility, including nights and weekends.

Custom Plans

Each service tailored specifically to your space.

Attention to Detail

We never cut corners. Every corner treated with care.

Peace of Mind

Let us handle the hard work. You enjoy the results.

More Than a Cleaning Company

At Sentinel Cleaning Company, we are your partners in creating clean, organized, and healthy environments. Our team has earned the trust of more than 120 clients throughout Cape Cod and the surrounding region.

We work with passion, commitment, and attention to detail to deliver the best residential and commercial cleaning experience, every single time.

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"We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers' needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion. Our reputation is based on service, safety, and quality, regardless of how large or small the job." Priscilla Barbosa, Founder & Owner
Sentinel team deep cleaning a kitchen Sentinel professional cleaning team member Sentinel team cleaning overhead surfaces

Let's Get Your Space Spotless

Have questions or ready to schedule? Reach out via phone, email, or the form. We respond quickly.

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Frequently Asked Questions

We serve all of Cape Cod and the surrounding area, including Hyannis, Barnstable, Chatham, Harwich, Mashpee, Osterville, Yarmouth, Provincetown, and more.
Absolutely! We offer weekly, bi-weekly, monthly, and customized schedules for both residential and commercial clients.
Yes! Our Moving Clean service is specifically designed for move-in and move-out situations: a thorough, detailed cleaning to leave every property in perfect condition.
Yes! Professional window cleaning that leaves glass streak-free and crystal-clear, for both residential and commercial properties.
Yes, 7 days a week, including Sundays and evening hours. We work around your schedule to ensure minimal disruption to your routine.
Fill out the form above, call us at 774.810.5165, or send a text message. We respond quickly and put together a personalized quote, completely free.
Yes. From September through November we focus on fall deep cleaning: removing the sand, salt film and heavy wear a Cape Cod summer leaves behind. It covers baseboards, inside appliances and cabinets, grout, windows, vents and carpets. See our deep cleaning service and the fall cleaning checklist.
Yes. Our seasonal closing clean empties and sanitizes the refrigerator and appliances, cleans every surface, washes floors and leaves the home ready to sit empty through the winter, so it is fresh when you open it in spring. See seasonal home cleaning and our guide to closing a Cape Cod vacation home.
After a season of guest turnovers, the areas that need professional attention are carpets and rugs, upholstery, grout, inside the oven and refrigerator, window tracks, outdoor shower areas and mattresses. A post-season deep clean resets the whole property. Details on our vacation rental cleaning page.
Yes. Fall is one of the best times for window cleaning and carpet extraction on Cape Cod: the summer salt film comes off the glass, and carpets are cleaned before the home is closed up or before holiday guests arrive.
Yes. We clean empty seasonal homes and can coordinate access with you or your property manager, so you do not need to be on Cape Cod. Many owners book this service in October and November.
Yes. We offer pre-Thanksgiving, pre-Christmas and post-party cleaning across Cape Cod. Holiday weeks book up early, so we recommend scheduling 2 to 3 weeks ahead by calling 774.810.5165. See our Thanksgiving cleaning guide.
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