Window Replacement and Installation Services in Barrie, Newmarket and Surrounding Areas

Upgrade Your Home With Modern, Energy-Efficient Replacement Windows

With quality materials and a professional installation process, your windows play a very important role in the comfort, protection and efficiency of your home. From modern aesthetics and bright natural lighting to overall savings on energy expenses, replacing your windows can also improve your property value for when you are ready to sell!

At Simpson Windows and Doors, we have over 25 years of experience in providing replacement windows and installation services to the Barrie, Newmarket and surrounding communities. With industry-leading technology and fully customizable window selections, our trained technicians are pleased to help find you the ideal window options to suit your budget and needs.

Get a Free Quote

When is it Time For a Window Replacement?

For older Canadian homes, it is not uncommon to hear a whistling window or feel a cold draft pass through the room.

While you may be tempted to throw on a sweater, these small inconveniences are actually signalling that your windows aren’t as efficient as they should be! From increased energy consumption to sky-rocketing hydro bills, the upfront expense of a window replacement can actually save you quite a bit of money in the long run.

Here are a few common signs that it may be time for a window replacement:



Moisture damage is a very serious sign that it is time for a window replacement. With the added risk of mold and mildew growth, investing in replacement windows help to protect your health as well as your property.



Feeling a cold draft through your windows may be common in older homes, but it is certainly not energy-efficient. As this is a good indication of a damaged seal, it may be time to upgrade your windows.



While some window problems can often go undetected, an increase in your energy expenses may indicate when something is wrong. These air leaks cause your HVAC system to work twice as hard, increasing your energy bills.



As your windows age, it is not uncommon to come across a few minor maintenance repairs. However, when the wear-and-tear starts limiting your window’s ability to perform and function, it may be time for a replacement.



Condensation on/between your window panes are one of the easiest warning signs to spot! As this is a good sign that the seal is not properly to block heat and moisture from infiltrating your home, it may be time for a replacement.



If you find that your window aesthetic is a bit dated for your taste, it may be time for a window replacement. With a variety of styles, colours and configurations to choose from, there are beautiful options for every style and budget.

Types of Windows

Upgrading your home with fresh, new windows is a worthwhile investment! With a fresh aesthetic, improved energy-efficiency and increased resale value - the return on investment is definitely worth the upfront expense.

With a large selection of window styles to choose from, our windows are built with quality and energy-efficiency in mind.

At Simpson Windows and Doors, we offer the following window types:



Bay & bow windows are an excellent choice for homeowners looking to increase space and natural sunlight within their homes. Available in a variety of styles and configurations, bay & bow windows are often made using a variety of fixed, casement or hung windows to create a beautiful sit-in nook that protrudes from the house.

With a cozy space to sit or store personal belongings, bay & bow windows create a warm and comfortable space to enjoy some solitude, or simply enjoy the sun and fresh air.



Hinged at the sides, casement windows utilize a crank handle mechanism to ensure an airtight seal when closed. One of the most energy-efficient windows on the market, this contemporary design opens to a 90 degree angle for optimal air ventilation and easy cleaning.

Popular with vertically-shaped window openings, casement windows make an excellent choice for hard-to-reach areas such as above sinks, countertops and furniture.



With a classic colonial aesthetic, double hung windows open vertically from the top and/or bottom sash. By sliding the window panes up and down, double hung windows offer great ventilation solutions, energy-efficiency and an easy-to-clean design.

Ideal for homeowners who have AC units in their windows, double hung windows are the perfect shape for a safe, secure and reliable fit.



Single hung windows, much like the double hung windows, operate by gliding the sash vertically. With its up-and-down movement, the major difference is that a single hung window’s upper sash is fixed, while the bottom sash is operable.

With a single lock, these windows have a lower risk of damage or failure - making them a great energy-efficient option for your home!



Single slider windows have sashes that glide horizontally for easy-to-operate functionality. For homeowners that are looking to maximize their glass viewing and minimize frame visibility, single slider windows offer beautiful, unobstructed views at economical prices!

Without the use of springs, cranks or pulleys, slider windows have a lesser risk for hardware failure, making them easier to maintain.


Industry-Leading Quality & Materials

At Simpson Windows and Doors, we pride ourselves on industry-leading materials and unforgettable customer service.

With well-respected suppliers and unbeatable lifetime warranties, our ENERGY STAR© rated window selections are second to none!

Our Glass Selections Feature:

  • Lo-E 190 double strength glass with Argon gas

  • Triple weather stripping to reduce the risk of air or water infiltration

  • Intercept® ULTRA Warm-Edge Spacers

With exceptional glass technology and quality materials, our glass windows outperform the industry standard through thermal efficiency, air infiltration protection and glass clarity:

Thermal Efficiency Outperforms Industry Standards By Up To 29%

Proprietary evolv Glass Technology provides triple-pane thermal efficiency in a double-pane window by reflecting escaping UV rays back into the room.

This increases thermal efficiency by up to 29% above industry average!

Air Infiltration Protection Cuts Drafts By Up To 24%

Industry-leading Owens Corning® Air Sealing Technology offers unmatched air infiltration protection, cutting drafts by up to 24% with a mold-resistant seal.

With exceptional warranties, our windows are built to last.

Glass Clarity Reduces Water Spots By Up To 99%

Patented EC TECH Technology produces cleaner, clearer windows. The titanium dioxide coating absorbs the sun’s UV rays, loosening dirt particles and allowing water to rinse them away naturally.

Water spots are reduced by 99%, creating crystalline glass clarity.

Energy-Saving Insulation

According to ENERGY STAR©, you can save up to 20% of your overall utility bills by improving the way your property consumes energy!

At Simpson Windows and Doors, we pride ourselves on supporting sustainable homes.

Our double-paned window options consist of heat-resistant glass between two Low-E panes, which effectively prevent hot air from escaping and cold air from seeping through.

We also offer foam insulation for window frames, preventing any heat or air from infiltrating your living space.

Energy-Saving Insulation

Lifetime Warranty on Greenview Products

Protect your home with the safety, durability and energy efficiency it deserves.

With industry-leading quality and performance, our window selections come with top-ofthe- line manufacturer’s warranties, including:

  • Lifetime coverage on accidental damage.

  • Fully transferable at no cost – warranty remains for product lifetime after transfer.

  • Non-prorated.

  • Lifetime coverage on seal and hardware failure.

When it comes time to sell your home, your fully transferable window warranty can also serve as a great bargaining chip for your property value.

With increased energy efficiency and improved curb appeal, replacing your windows with a modern, energy-saving upgrade can provide a great return on investment.


Easy-To-Clean Coatings

When cleaning your windows, Diamond glass gives you a real advantage over the industry standard.

Our E-clean glass uses a solar shield and anti-dirt coating to keep your windows looking spotless, effortless and new!

With a special coating to prevent rain and dirt from sticking to the window panes, these easy-to-clean solutions make maintenance and cleaning as hassle-free as possible.

Our Installation Process:

Replacing your windows with energy-efficient upgrades can be an exciting and overwhelming process. With so many styles, colours and materials to choose from, how do you determine which options are best for you?

At Simpson Windows and Doors, we are committed to personalized customer service from beginning to end.

STEP 1: Before Your Window Installation

  • Allow our trained professionals to help you determine your preferred style, materials and budgeting needs.

  • Choose from our wide selection of ENERGY STAR© rated window options (available in a variety of colours, styles, textures and configurations).

  • Our installation team will measure your window to ensure that your replacement order will be a perfect fit.

STEP 2: Window Installation Day

  • Our installation team will prep the area with a tarp to catch any debris that may fall during the installation process.

  • Allow our team to remove the old windows to exchange them with the new, secure replacements.

  • Our installation team will insulate the window in its frame to ensure support and efficiency.

STEP 3: After Your Window Installation

  • Following your new window installation, our team will clean up the tarps and any visible debris.

  • Allow our crew to remove the old window, hardware and debris from your property.

  • Enjoy the safety and efficiency of your brand new windows with Lifetime Warranty on Greenview Products!


“Well our job is all finished. I want to thank everyone for such a professional job and cleanup. Adam, Justin and Paul were amazing and finished the eavestroughing and window installation without a hitch. Thanks to Adam for pointing out that the colour we had chosen was not the best match. He ordered the better choice and it was here on the job before they actually needed it. Thank you for not letting me put up the WRONG colour Adam.”

Explore Your Options With An Expert

If you are interested in learning more about your window replacement options, feel free to visit our Barrie and Newmarket showrooms!

Learn more about your style and budgeting needs with the help of one of our trained professionals. From a complimentary consultation to a personalized, obligation-free quote - our team is always here to help.