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TRUSTED BY SULLIVAN, NH HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon10
    Verified window cleaning services reviews

Top-Rated Window cleaners in Sullivan - Updated Nov 2026

Avatar for Joslin & Co LLC
Joslin & Co LLC
5.0(
9
)
Window CleaningWindow Cleaning - For Business

Serving Sullivan, NH and surrounding areas

Approved

In business since 2023

Free estimates

Offers commercial services

"Recommend Joslin & Co for window cleaning. Hands down the best not just for service but the great customer service as well. You can tell Nico takes great pride in his work with the care for the building and his customers! He is a really cool down to earth guy yet still professional and quick and efficient in his services! 10/10 in my book."
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+1

Response time7 hrs
Response rate92%
13 neighbors recently requested a quote
Avatar for Clean well solutions
Clean well solutions
New to Angi
Window Cleaning

Serving Sullivan, NH and surrounding areas

Approved

Small jobs welcome

Credit card accepted

Offers commercial services

At CleanWell Solutions, we provide professional residential and commercial cleaning services with a strong focus on quality, reliability, and attention to detail. Our goal is to make every home or business feel fresh, clean, and comfortable.\n\nWe offer regular cleaning, deep cleaning, move-in/move-out cleaning, and customized cleaning services based on each client’s needs. We take pride in our work, treat every space with care, and always strive to exceed our clients’ expectations.\n\nWhen you choose CleanWell Solutions, you can expect professional service, clear communication, attention to detail, and a team you can trust. We are committed to delivering a clean space you can truly enjoy.

1 neighbors recently requested a quote
Knowledge Creations
New to Angi
Window Cleaning

Serving Sullivan, NH and surrounding areas

Approved

Knowledge Creations\n\nVeteran-Owned | Painting & Cleaning Services | Framingham, MA\n\nAt Knowledge Creations, we believe every space has the potential to become something extraordinary.\n\nProudly veteran-owned and based in Framingham, Massachusetts, we specialize in professional painting and cleaning services designed to bring your vision to life.\n\nOur commitment is built on integrity, quality craftsmanship, attention to detail, and timely service. We take pride in transforming spaces, exceeding expectations, and delivering results our customers can feel good about.\n\nYour vision. Our craftsmanship. A transformation you can trust.\n\nKnowledge Creations — Bringing Visions to Light.

Avatar for UCS Construction and Design
UCS Construction and Design
New to Angi
Window Cleaning

Serving Sullivan, NH and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

We are new company just getting started I have a team of licensed professionals I work with. We are very well rounded in our field of work. Doing everything from small handyman repair and installation work to full remodels and renovations. No matter how big or small the job is we are here to help and give great prices and discounts to help home owners and other professionals. Always leaving up to code, quality work, and satisfied customers behind. We also do custom work such as Accent/feature walls that give a home that unique and elegant feel to it.

Avatar for Time To Paint
Time To Paint
New to Angi
Window CleaningWindow Cleaning - For Business

Serving Sullivan, NH and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Need a project done, but not sure who to call? I’m your local expert for a wide range of home improvement and repair services. With a versatile skill set in [Skill 1], [Skill 2], and [Skill 3], I specialize in tackling those tough jobs that require multiple trades. I am committed to delivering top-tier craftsmanship, dependable service, and complete customer satisfaction. No matter the task, I have the experience to do it right the first time.

Avatar for Spotless Glass
Spotless Glass
5.0(
9
)
Window CleaningWindow Cleaning - For Business

Serving Sullivan, NH and surrounding areas

In business since 2021

Free estimates

Credit card accepted

"Spotless Glass gets a 100 out of 10 rating. You could not ask for a more spectacular window cleaning service. My windows are like new and believe me, they were pretty awful. They are professional, efficient, and wow, my windows are sparkling. I?m in Woodstock, VT and I highly recommend David and his staff. Signed a very happy customer."
Spotless Glass
What can we do for you?
Spotless Glass
Sun porch roof wash
Sun porch roof wash

+1

Response time1 day
Recommended by87%of homeowners
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Window Cleaning FAQs, answered by experts

Yes, you should plan on being home when a window cleaner is cleaning your windows. The professional will clean both sides of the glass and will likely disassemble parts of your windows from the inside to clean and inspect the inner components, including the balances and weatherstripping. Much of this work requires interior access to your home, which means someone will need to be home to provide access to the window cleaner.

Yes, professional window cleaners will clean the surface of the glass on both the inside and the outside. They will usually clean the tracks for your windows, check and clean the weatherstripping, and even disassemble parts of your window, if necessary, to clean and lubricate interior components and moving parts.

Hard water stains are caused by hard water. Hard water contains a lot of minerals, like calcium and magnesium. When water on your glass surfaces dries out, the minerals stay behind and stick to the glass. This results in a residue that looks like white cloudy or streaky spots. Call a pro to install a water softener to banish hard water problems.

Hard water stains can permanently damage your glass if left untreated. The minerals dissolved in the water can etch the glass, causing long-term damage and affecting the overall integrity of the surface. Luckily, it is pretty simple to remove hard water stains by using vinegar, baking soda, or commercial cleaners.

Yes, but professionals use specialized equipment and cleaning solutions to safely achieve streak-free, long-lasting results.

The Sullivan, NH homeowners’ guide to window cleaning services

From average costs to expert advice, get all the answers you need to get your job done.