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TRUSTED BY NASHUA, NH HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon83
    Verified window cleaning services reviews

Top-Rated Window cleaners in Nashua - Updated Nov 2026

Avatar for Square Services
Square Services
4.6(
29
)
Window CleaningWindow Cleaning - For Business

Serving Nashua, NH and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"This company company was SO amazing to work with. When I first asked for a quote to clean my patio, a representative of the company, named Carmen, had me send pictures of the space and gave me a formal quote. Carmen was always attentive to every question I had about the process to clean my patio and always gave me a straight answer. Wandel, the cleaner, was on time for the job and power washed the fence, windows, cement patio and did yard/waste removal. Handel even came back for a second day to continue to thoroughly clean that patio upon request. The patio space looks beautiful now. I highly recommend using Square Services!"
Response time2 days
Response rate86%
Recommended by100%of homeowners
Avatar for Queen City Green Cleaning Services, LLC
Queen City Green Cleaning Services, LLC
4.5(
8
)
Window Cleaning - For Business

Serving Nashua, NH and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

"We have an office building and continue to receive exceptional service from Clean Team. They are timely, responsive and always priced competitively. Highly recommend using this company."
Office cleaning
Kitchen Lounge
Kitchen Lounge
Office
Receptionist

+3

Response time1 day
Response rate100%
2 neighbors recently requested a quote
Avatar for WE HOME IMPROVEMENT INC
WE HOME IMPROVEMENT INC
5.0(
4
)
Window Cleaning

Serving Nashua, NH and surrounding areas

Approved

Free estimates

Small jobs welcome

Offers commercial services

"Emily’s company did a fantastic job doing a deep clean on my house before move in! She was responsive and concise on what to expect. I’m so pleased with how it came out!"
Kitchen Remodel
Kitchen remodel 2
Kitchen remodel 2
Kitchen remodel 2
Kitchen Remodel

+25

22 neighbors recently requested a quote
Recommended by25%of homeowners
...
Showing 1-10 of 214
Window Cleaning FAQs, answered by experts

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.

One of the best professional cleaning solutions that won’t leave streaks is one gallon of distilled or bottled water mixed with 2 to 4 teaspoons of dish soap. Apply using a sponge in a figure-eight motion, and then use a squeegee to remove the majority of the water and soap. You can finish drying with a piece of old black-and-white newspaper to remove any residue for a streak-free clean every time.

Unless it’s written into the purchase agreement, there’s no legal obligation that a house you’ve bought has to be clean before you move in. The previous owner is generally required to sweep the house, but that doesn’t guarantee everything will be spotless upon your arrival. If possible, discuss the cleaning requirements with the real estate company before moving in.

A handy hair dryer will quickly remove condensation from your window, but it’s only a temporary fix. The hair dryer maneuver will not repair the root of the window fogging problem, which is likely a broken window seal. If you need to defog the window quickly, such as if guests are coming over, use the hair dryer. However, for a permanent solution, defogging the window or replacing it are the only options.

Window cleaning costs around $220, on average, but you could pay anywhere from $150 to $300 or more, depending on the number of windows, how accessible they are, and the type of windows. Some professional window cleaners charge on a per-window basis at around $10 per window, while others provide a single price for your entire home. Either way, more windows will mean higher cleaning costs. Picture windows tend to be the most affordable because they don’t require cleaning of internal components, while double-hung windows and skylights increase your price because they’re more complicated to clean and less accessible.

The Nashua, NH homeowners’ guide to window cleaning services

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