Window FAQ - Rescom

Windows FAQ

Common Questions About Rescom Windows

Learn About Replacement Windows & Our Company.

We’re a local replacement window company that serves all of New England. We have one of the only windows fully optimized for the New England climate. Ultra-efficient, hyper-secure, and totally gorgeous, Rescom windows tick every box on your Window Wishlist.

Explore the following pages for more info:

Our veteran window installers, who are trained, skilled, and ultra-experienced. Check out our Window Installation page to see how our attention to detail ensures you a job done once, done right, and done for good.

Our windows last up to 50 years, adding tremendous value to your home. Simply put, they’re the last windows you’ll ever need to buy.

For more details, visit our 50-Year Guarantees page.

Of course! We sell plenty of partial-order projects.

If you can only do a few windows at a time, we’ll work within YOUR budget. We also offer excellent financing to help secure you a monthly payment that’s comfortable for you.

Absolutely. You want the type of window that best complements your home’s natural design. No matter what style or combination of styles you choose, however, we can custom-manufacture it for you.

Getting windows at Rescom breaks down into three simple steps: 

  1. Schedule an appointment with a Rescom Window Consultant to determine the perfect solution for your home. 
  2. After you’ve signed the agreement, we’ll have an expert come and measure each opening to ensure a flawless fit.
  3. We will contact you to set up your installation date. After installation, you can relax and enjoy your new windows!

Yes. In fact, most homeowners will experience the best results from new replacement windows when they are installed in the winter or summer.

Because our frames and sashes are made of vinyl, you can say goodbye to painting and caulking.

Our windows won’t stick, and you don’t have to remove storm windows in order to clean them. In fact, you can do it all from inside your home. An occasional wipe with a damp cloth will keep your windows looking like new for years to come.

They definitely can. Condensation is a direct result of interior humidity and the difference between indoor and outside air temperature. The efficiency of your window will also impact the temperature and humidity level at which condensation occurs. Our energy-efficient windows will help reduce condensation.

Here’s why: high-performance windows with low U-factors result in inside glass surface temperatures much closer to the room air temperature. Windows with warm edge technologies and non-metal frames are also less likely to have condensation on the frame or at the edge of the glass.

Three layers of insulated glass will greatly reduce condensation on the interior surface of the glass–even under extreme cold weather conditions. Note that in certain conditions (humid mornings after a clear night sky), some triple pane windows may have dew on their outside surface. These windows are such good insulators, the dew is condensing there just like it does on an insulated wall.

Yes. Our windows can reduce outside noise by up to 66%. Visit our Whisper Quiet page for more details.

Not at all! There are as many warranties as there are window manufacturers. Some brand name factory warranties cover just the sash and frame. The rest is left up to the local fabricator who may or may not cover it. Your warranty is only as good as the company behind it. 

When you choose Rescom windows, your unit is warranted from the extrusion and parts to the glass and construction for a full 50 years, with transferability provisions. It’s one of the most comprehensive warranties available—just what you’d expect from an industry leader.


A replacement window is a window that’s custom-built to fit within the opening of an existing window. It is a custom-measured item designed to fit exactly and can be normally installed without removing or disturbing the interior and exterior stops/trim work around the window.

When your home was built, the window openings were made to accommodate a stock size window, whereas replacement windows are typically manufactured to custom fit existing openings.

The biggest differences are reduced maintenance, ease of operation, and thermal performance features driven by new technologies.

Your house now has finished siding, walls, and trim, which you probably want left intact after the windows are replaced to minimize disruption and cost.

A replacement window is made to fit into your old window’s sash opening (the area of glass including its frame and any hardware) and doesn’t require the removal of interior or exterior casings.

The installation of a new construction window (most likely what is being replaced) would require removal of the entire window including its jamb, head, sill, and casings to expose the stud opening.

Although certainly an option, this method is more labor-intensive and invasive and would involve walls and siding beyond the casings.

Standard or lumberyard windows are always cheaper—unless you take into consideration the increased costs of labor and the problems with how to trim or finish out the inside of the window opening.

Custom windows will provide the best energy performance, the best fit, and the most attractive look for your home.

Save Money on Energy Bills: If you have single-pane windows, upgrading to our triple-pane Windows will result in unbelievable year-round energy savings.

Improve Your Home’s Appearance: Our high-quality vinyl and selection of styles and hardware options can improve the look of your home both inside and out. Often, simply changing the window style can dramatically change the entire appearance of a room.

Increase Ventilation: Get more fresh air circulating in your house by replacing fixed units with operable venting windows. You’ll be amazed at the difference quality windows make to the quality of life in your home.

Yes, for a variety of reasons. First, you will realize savings on your heating and cooling bills. Second, quality replacement windows are virtually maintenance-free, which eliminates painting costs. Finally, the transferability of a window’s warranty may easily add to the resale value of your home. 

The top things future homebuyers look for in a new home are kitchens, bathrooms, and windows. Curb appeal is very important to your home and investing in new energy efficient windows will definitely be a great advantage if you ever want to put your home up on the market.

When cleaning windows and doors, use the mildest cleaners possible. NEVER use solvents or abrasive cleansers -some chemicals can harm vinyl and PVC surfaces and other window components.

We recommend Fantastik® and similar products to clean vinyl window frame surfaces. Over-the-counter glass cleaning products are recommended for cleaning windows.

There is a huge difference in the quality and performance of different windows. The glazing technology, glass system, vinyl composite, profile, and construction of the rails, are just a few things you need to consider.

You should consider replacing your windows if…

  • The windows aren’t energy efficient.
  • The wood frames are rotting.
  • They allow excessive amounts of condensation, fading of furniture and draperies.
  • You are tired of painting and staining.
  • You can feel drafts while sitting near your current windows.


The easiest way to compare the energy performance of different windows and doors is to read the National Fenestration Rating Council (NFRC) label.

It provides valuable energy efficiency information about the product. Also, check to see if the product is Energy Star® qualified ENERGY STAR Windows.

For in-depth details, visit our Window Energy Efficiency page.

Two or three panes of glass separated by a space (usually filled with an inert insulating gas) to form insulating glass. These are also called double-pane and triple-pane windows.

Since 80% of a window is glass, real heating and cooling savings come from what is known as “improved glass performance,” not a high R-value on the frame.

Rescom uses the latest technology to improve the performance and the longevity of the insulated glass unit, and is standard on all windows we install.

Low-e glass is short for low-emissivity glass. It has a very thin coat of material on the glass to make it more efficient, especially in very sunny, hot areas such as the west coast.

It helps reflect standing heat away from the surface of the glass, keeping unwanted heat out in the summer and desired heat inside in the winter.

Low-e glass is the most cost-effective way to increase the energy efficiency of the windows.

Low-e coatings can also help reduce furniture and carpet fading by reducing the amount of ultraviolet (UV) radiation that enters the home.

Harmful ultraviolet radiation can alter the chemical structure of dyes and other colorants in carpets and furniture causing fading.