● Replacement Window● Replacement Vinyl Windows● Aluminium●

With over 20 years of experience in the design, manufacture, and installation of Doors and windows, no one comes close to offering all the things we can offer to you.

A knowledgeable and helpful staff to help you coordinate your job, a wide variety of styles to match any design, a highly trained installation staff, and top notch service after the sale, all offered to you factory direct at competitive prices.

We concentrate on only producing high performance, extremely durable commercial class windows. For us, it is less costly offering the residential consumer a top quality commercial window than to produce a lighter duty residential version of the same vinyl replacement windows. Our market is flooded with that type of unit. Our Doors and windows give comfort, security, efficiency, and durability all at a competitive price.

Quality work doesn't happen by coincidence. It takes experience to do it right. Anyone can place ads to attract customers, then buy windows from a distributor, hire sub-contractors to do the work, and collect the check when the job is done. That is how almost every company does home improvement. Not at Thermal Windows.

We are the only window manufacturer in Dallas-Fort Worth that maintains an in-house employee installation staff. There is no substitute for well trained employees with lots of field experience installing products they are very familiar with.

The more you discover about Doors and windows the better Thermal Windows will look. We focus on building the very best products, pricing them competitively and offering them to you in a respectful, no hassle manner. Call us and see for yourself.

We are proud to offer our customers the ThermaTru entry door systems for their homes.

ThermaTru entry doors are well known in the door industry as a first quality manufacturer of durable, high efficiency doors. They offer a wide selection of styles to choose from.

There is a door system for virtually any type of home, from traditional to ultra contemporary, there is a ThermaTru door for you.

Stop by our plant or call for an appointment and let us show you all the details and features designed into this incredible door system. We believe you won't settle for anything less for your home.

Click on the learn more button on the top of the page to see the full line of ThermaTru doors available.

These beautiful windows are made from the newest, most durable, heavy walled vinyl extrusions. They are structurally designed with multiple irregular chambers to be the strongest, most energy efficient, maintenance free, vinyl frames available anywhere today. Our vinyl is specially formulated to withstand extreme sun exposure. We back them with a limited lifetime warranty.

The Energy Guard system incorporates a beautifully beveled exterior glazing leg to simulate the historic putty glazed appearance.

Solid vinyl (PVC) is a superior insulator that will never blister, chip, flake, rust, rot or peel. Not all vinyl used in making vinyl windows is the same.

Convenience Our vinyl windows are maintenance-free and never needs painting. The tilt-in sashes make cleaning from inside your home, quick and trouble-free.

Efficiency Solid vinyl (PVC) is an excellent insulator and dramatically reduces the transfer of heat and cold. Double weather-stripping and deep interlocks stop wind and water from seeping into your home. Our custom made insulated glass units are made in-house and engineered to provide optimum efficiency, durability, and energy conservation.

This new UV stabilized vinyl is extruded with thicker walls and multiple irregular chambers to increase rigidity and structural stability.

Compare the extrusion of a popular single hung window on the left to our Energy Guard single hung on the right. The Energy Guard system with it's heavier walls and multiple chambers provides lower air infiltration under heavy wind loads

In addition to having double or triple insulated glass, along with other performance options such as Thermal E+ and tinting, a Thermalized window offers another important feature. The window frame and sash frames are insulated against heat and cold conduction. This is done by separating the outside metal parts from the inside with a material such as polyurethane, greatly reducing the amount of heat or cold transferred through the frames. This feature is known as a thermal break or thermal barrier.

All of our thermal barrier aluminum frames are heat strengthened by bringing the raw aluminum up to a T5 temper to increase both strength and rigidity.

This allows us to build extremely large windows without affecting performance like most aluminum windows. They have lower air leakage and higher resistance to heat transfer than non thermal break windows. With double glazing, they will stop 26% to 38% of the heat lost through comparable wood windows made at local millwork shops.

A thermalized aluminum window performance is equal to or better than well-made wood windows.

Thermalized aluminum windows surpass strict industry specifications. Air leakage with a 25 MPH wind blowing outside cannot exceed 0.375 cubic feet per minute (CFM) for every foot of weather-stripped window perimeter. Our 700 Series Double Hung allows only 0.06 CFM air infiltration - one sixth of the industry standard! Old, worn out windows often have rates of 1.5 or more, 25 times the air leakage of our best Thermalized aluminum windows!

No window is condensation-proof. Even walls will sweat under high humidity. Windows do not cause condensation; they simply prevent moisture from escaping and provide a surface that allows condensation to be readily seen. If inside glass and frame surfaces on a Thermalized window show excessive moisture, you can be sure that moisture is also present in your walls and ceiling.

The maximum recommended interior relative humidity ranges from 15% at -20F to a maximum of 40% at +30. Many homes have been built tighter to conserve energy, leading to indoor humidity above the recommended levels. The best way to handle high indoor humidity is to vent the moisture to the outside. Bathrooms, kitchens and laundry areas should be vented with a fan, or by opening windows slightly when the areas are in use. If that does not help, a dehumidifier might be necessary.

Casements, awnings, tilt double hung, slide bys. In thousands of standard shapes and sizes, with primed or low maintenance aluminum clad exteriors. Wood Doors and windows meet the toughest standards for energy efficiency.

Heavy duty all wood frames, reinforced corners and joints, strong, smooth operating hardware, extra heavy sashes, energy efficient double pane glass, and thick, tight sealing weather-stripping.

The aluminum nailing fin on the clad windows makes new construction installations quick and easy. Extra heavy duty weather-stripping locks out the elements. Smooth, reliable hardware enables you to open your windows with ease.

High energy efficiency for at a reasonable price. The double pane insulating glass is 3/4 thick. Popular argon filled Low E glass is also available if you prefer. Other glazing options available upon request include bronze/grey tint, obscure and tempered glass.

Open or closed, wood windows can add a touch of distinction to any home and offer you a spectacular view.

Do you have old single paned wood windows? Would you like the energy efficiency that dual paned windows provide and the tilt in sashes for easy cleaning? We might be able to replace your current window sashes with a Sash-Pack kit. This dramatically reduces the time and expense of a total window tear out.. Call to see if this option will work for you.

Our EnergyGuard Replacement Vinyl Windows are made from one of the strongest vinyl window extrusions available today.

There is a tax benefit for replacing the old windows in your home.

J & M Glass Company, Inc. is one of 300+ voting members of the NFRC.

We are the only window manufacturer in the Dallas-Fort Worth area that maintains our own in-house, full time, installation department. No sub-contractors.
Our insulated glass units are made in our Dallas plant to commercial, not residential, glass unit specifications for maximum performance and durability.You can tour our facilities during normal business hours, (M-F 8:00am to 5:00pm-Sat. 9:00am to 1:00 pm), and watch us build your replacement or new construction windows

Efficient Windows Collaborative	National Fenestration Rating Council (NFRC)	Replacement Windows
Energy Efficiency and Renewable Energy	American Architectural Manufacturers Association	Vinyl Institute
ENERGY STAR	National Association of the Remodeling Industry	Builder Magazine
Window & Door Magazine	Cardinal Glass Industries	Federal Tax Credit

Replacement Windows

Thermal Windows 8808 Empress Row Dallas TX

Thermal Windows
8808 Empress Row
Dallas TX