THERMALAST
Enjoy the Beauty, the Security, the Savings and the Comfort of Cutting-Edge ThermaLast™ Windows
Thousands of homeowners have gotten the opportunity to experience worry-free window replacement with unmatched quality and a lifetime warranty - and you should, too.
★★★★★ 5/5
“If we could give more than 5 stars, we would!”
Frank & Stella E.
Letter from John
The ThermaLast™ Story
Dear Homeowner,
Making homeowners happy has been my life’s work. As a 3rd-generation craftsman, I started working on homes as early as 13 years old.
So I was shocked when I started my own window replacement company back in 2014 that a window didn’t exist on the market that checked all of the boxes that our customers were looking for.
They wanted a beautiful, energy-efficient window that was sleek, secure, and that functioned in a way that fit their lifestyle – without breaking the bank.
My team and I looked everywhere for the right window. From big box stores to high-priced designers and manufacturers, we never could really find the right fit.
So I approached one of the best window manufacturers, about creating a window that fit the exact specifications that our customers were looking for.
After a lot of research, trial, and testing, we were really proud to finally go to market with the ThermaLast™ Window.
This window ended up being the most energy-efficient double-pane window on the market. With its air-tight construction and superior durability, the ThermaLast™ Window stands up to its name.
Since then, we’ve installed 38,431 ThermaLast™ Windows to 100% satisfied customers.
As you continue below, you’ll see the many details that go into this window. But the most important element for me is the pleasure it brings homeowners when they have a window that looks the way they want and functions the way they need.
I’m pleased to share the ThermaLast™ Window with you, and it’s my hope that it surpasses all of your expectations.
John K.
John Kolbaska
Founder, ThermaLast™ Windows
★★★★★ 5/5
“The windows exceeded all expectations...Can't wait to replace the rest of my windows with them. Highly recommended!”
Anthony A.
WHY CHOOSE ThermaLast™
Here’s Why it Matters to Choose a Window You Can Trust like ThermaLast™
Your home is not only one of your most valuable assets. It’s where you lay your head to rest and where your memories are made. Here is why homeowners like you choose ThermaLast™ Windows for their home…
You’ll Have the Most Energy-Efficient Double-Pane Window on the Market
See below for a comparison of how other double-hung, double-pane windows stand up against the ThermaLast™ Window. When you choose ThermaLast™, you’ll know you’re getting a window that’s better in every way.
Energy Efficiency Ratings
ThermaLast
HOME DEPOT
Simonton
5500 Series
Renewal By Andersen Fibrex
LOWE’S
Pella 250 Series
Air Leakage
(lower numbers = better)
0.02
0.17
0.20
0.30
U-Factor
(lower numbers = better)
0.22
0.29
0.30
0.27
SHGC
(lower numbers = better)
0.20
0.26
0.31
0.28
R-Value
(higher numbers = better)
23.20
16.25
11.37
11.37
★★★★★ 5/5
“My house is finally draftless!”
Natalie C.
ThermaLast Energy-Efficiency
BY THE NUMBERS
Air Infiltration
Measured on a scale of 0 and 1, with lower numbers being better, the average Air Infiltration rating for today’s most popular double pane windows is 0.20 and 0.30.
ThermaLast Windows have an Air Infiltration rating of 0.02 and 0.01. That’s 15X more than the industry standard!
U-Factor
U-Factor is measured on a scale between 0 and 1. The lower a window’s U-Factor, the less heat and energy you will lose through your windows.
ThermaLast Windows have a U-Factor between 0.22 and 0.24, lowest of any double pane on the market!
SHGC
Solar Heat Gain Coefficient
Like U-Factor, SHGC is measured between 0 and 1. The lower the SHGC, the better the window blocks solar heat.
ThermaLast Windows lead all double panes on the market in this category with a SHGC of 0.19 and 0.21!
R-Value
The R-Value is a measure of resistance to heat flow through a window. The higher the window’s R-Value is rated, the better it insulates against heat loss.
ThermaLast’s 23.20 R-Value is better than other vinyl foam-filled windows and most walls inside your home.
“
“We had our windows and new sliders put in around February. They have made a HUGE difference when it came to the winter cold and saving us money with our gas bill. More importantly they look amazing!”
Caitlin H.
…Exactly HOW Does the ThermaLast™ Window Constantly Out-Perform Its Competitors on Energy Efficiency?
It Starts with the Glass.
The ThermaLast™ Window is made using glass from Cardinal Glass Industries - the world's leading glass manufacturer.
Insulated Comfort from the Inside Out.
You insulate the rest of your home’s exteriors - your windows should be insulated, too! You’ll stay comfortable thanks to ThermaLast™ frames being injected with special polyurethane foam insulation.
Even the Glass has an Added Layer of Protection.
Talk about cutting edge! The same Low-E coating that is applied to smartphones and tablets is applied to the interior of your windows. This helps them resist scratches and keeps heat from escaping your home in the winter.
Greater leak protection.
ThermaLast™ Windows are sealed with 50% more weatherstripping than other windows.
You’ll Have the Most Cutting-Edge Window On The Market with these Impressive ThermaLast™ Features
Choose From Over 136 Standard Color and Finish Combinations.
You’re sure to find the perfect color combination that will make your home’s exterior shine and its interior sparkle. (To start picking out your style right now, click here.)
Your Home will be Bright and Beautiful!
ThermaLast™ Window’s sleek design lets more light into your home and helps you see more of the outdoors with 27% more viewing area.
This feature can be critical when you need to keep an eye on your pets or children playing outside.
Speaking of Views, Yours Can Be Crystal Clear.
Some of your neighbors’ new windows may have thick, bulky screens that are hard to see through. Not your ThermaLast™ Windows! You have the option of equipping them with OptiView™ screens with finer threading. This gives you a clearer view of the outdoors while increasing your airflow AND insect protection.
Worried About Your Furry Friends? We’ve Got You Covered!
You can choose PetTough™ Screens to keep even your smallest loved ones from getting too close for comfort with your new window screens.
And ThermaLast™ Takes Your Family’s Safety and Security to the Next Level.
You’ll rest easy knowing your ThermaLast™ windows have a recessed locking system so that they’re pick-resistant.
Plus, They’re So Easy to Keep Clean!
ThermaLast™ Windows use Solar Clean® self-cleaning glass. This special technology uses the sun’s UV rays to break down dirt and debris so that every day in your home is a bright, shiny day!
At the end of the day, homeowners like you choose ThermaLast™ Windows because they want the best combination of style, form, function and energy savings. They want a window that stands up to the elements and delivers the look and feel they desire.
★★★★★ 5/5
“We love our windows!”
Crystal S.
Your Style Says A Lot About You.
Tell the Whole Story with an Abundance of Design Combinations Available to You with ThermaLast™ Windows.
No Matter Your Style or Preference, There’s a ThermaLast™ Window Style that Will Take Your Home’s Curb Appeal from Satisfactory to Stunning.
ThermaLast Windows Styles
Awning Window
Bay & Bow Windows
Casement Window
Double-Hung Window
Sliding Window
Picture Window
Geometric Shapes Windows
TRIM OPTIONS & PROFILES
Stool & Apron
Picture Frame
Colonial
2-1/4″ or 3-1/4″
Flat
2-1/4″ or 3-1/4″
Flat with Backband
2-1/2″ or 3-1/2″
Ranch
2-1/4″ or 3-1/4″
ThermaLast Windows Colors
EXTERIOR OPTIONS
White
Tan
Earthtone
Sandstone
Antique Brown
Antique Red
Forest Green
Vintage Linen
Royal Brown
Mystic Gray
Commercial Brown
Iron Ore
Maize
Pebble
Sable
Slate
Black
INTERIOR OPTIONS
White
Primed
Tan
Brazilian Pecan
Golden Oak
Provincial Oak
English Walnut
Colonial Cherry
Unfinished Maple
Unfinished Oak
Norwegian Maple
HARDWARE FINISHES
White
Beige
Pontiac Gold
Oil Rubbed Bronze
Antique Brass
Brushed Nickel
★★★★★ 5/5
“I couldn't believe how good the windows looked. I am 1000% satisfied.”
Jack F.
Installation
A Windows is Only as Good as the Company that Installed It.
You get to enjoy a Worry Free Installation with ThermaLast™ Windows.
That’s because ThermaLast™ Windows are only installed by companies that follow the Thermal Break 60 Installation System.
With over 30 years of serving homeowners, ThermaLast™ Founder John Kolbaska has learned how a job is done right – and unfortunately, he’s had to help clean up the mess when a job is done wrong.
Too often, homeowners find themselves victim to contractors who bait them with a superior product, but then short-change them on the installation process.
That will never happen with ThermaLast™ Windows. This is because the only contractors who are authorized to sell and install ThermaLast™ Windows are those who follow the Thermal Break 60 Installation System designed by John Kolbaska himself.
When you choose ThermaLast™, you know you’re not only getting a superior product, but a superior installation as well.
★★★★★ 5/5
“We had over 30 windows installed and could not be happier.”
Carl V.
Reviews
What Homeowners Like You Are Saying About ThermaLast™ Windows…
★★★★★ 5/5
“The windows are great quality, and my basement is no longer drafty.”
Michelle S.
★★★★★ 5/5
“From the first day these windows have been installed we have felt a dramatic improvement in our home. We no longer feel the sun beating down on us through the glass as if the window was open. Our kitchen was probably the most uncomfortable room before, especially with the great deal of afternoon sun we receive. These windows are very well insulated, and being the middle of summer our house is staying cooler, and our AC is running less.”
Thomas M.
★★★★★ 5/5
“Quality product for a modest price.”
Carol S.
★★★★★ 5/5
“Terrific windows!”
Richard B.
★★★★★ 5/5
“They are good quality and withstand cold NY winters.”
Alina P
★★★★★ 5/5
“Purchased a sliding glass door. It’s been in for a few weeks now and I’m very happy with it. The door is very well made. The hardware is better than what you normally find on these types of doors. The locking mechanism is exceptional (locks at multiple points for added security). The built in blinds function perfectly. No more drafts and the door works like it should."water can do to your house.”
John G.
★★★★★ 5/5
“The windows are tremendous. Just the noise reduction is worth the money for sure.”
John B.
Warranty
You’re Protected with a Worry-Free Lifetime Warranty
Your home is not only one of your most valuable assets. It’s where you lay your head to rest and where your memories are made. Here is why homeowners like you choose ThermaLast™ Windows for their home…
When you choose ThermaLast™ Windows, you get to rest easy. This is because your windows are backed by a true lifetime warranty - not just on the materials like some other window replacement companies. Your ThermaLast™ Lifetime Warranty covers the labor on that window as well.
See How ThermaLast™ Gives You the Best Warranty in the Business:
Features
Andersen Windows Limited Warranty
Renewal by Andersen Limited Warranty
Marvin Wood and Clad/Wood Window and Door Limited Warranty
Pella Vinyl Window and Door limited Warranty
ThermaLast™ Window and Sliding Door Warranty Lifetime Warranty
Windows or Door Frame, Hardware, and Moving. Parts
10 years
10 years
10 years
10 years
Lifetime
Insulated Glass
20 years
20 years
20 years
20 years
Lifetime
Screen Frame
10 years
10 years
10 years
10 years
Lifetime
★★★★★ 5/5
“Their guarantee is great and during a rainstorm I want peace of mind because I know how much damage water can do to your house.”
Tom B.
Contact Us
To find out more about ThermaLast™ Windows, fill out the form below. We look forward to hearing from you!
You can also view ThermaLast™ Windows in person at one of these showroom locations:
New York Showroom
4193 Hylan Blvd
Staten Island, NY 10308
Mon-Fri: 9am-5pm
Sat: Closed
Sun: Closed
(201) 992-8944
New Jersey Office
399 Oak Street, Suite B
South Amboy, NJ 08879
Mon-Fri: 9am-8pm
Sat: 9am-5pm
Sun: Closed
(908) 224-7997
New Jersey Showroom
440-444 Springfield Ave
Summit, NJ 07901
Mon-Fri: 10am-8pm
Sat: 10am-5pm
Sun: 11am-4pm
(908) 224-7997