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Tilt and turn european windows: unmatched silence and energy efficiency.

European technology, Affordable pricing, Fast order delivery, Built in USA

Tilt and turn european windows: unmatched silence and energy efficiency.

European technology, Affordable pricing, Fast order delivery, Built in USA

tilt to vent

Just turn handle up to air out your home

Easy to clean

Opens inward, making cleaning more convenient

Air-tight & Secure

Up to 11 locking points engage with a single handle turn
advantages in numbers

What sets us apart

Our products offer advanced noise reduction, exceptional energy efficiency, and unmatched European style
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X3 QUIETER
UP to 3x quieter than conventional windows
DRAFTS FREEE
100% drafts free. Instant savings on heating energy bills.
UNMATCHED SECURITY
unmatched home security. Up to 11- locking points per window available
FACTORY PRICING
Get DECA factory direct pricing on your custom-built windows and doors.
Request a Quote
advantages in numbers

What sets us apart

Our products offer advanced noise reduction, exceptional energy efficiency, and unmatched European style
Request a Quote
X3 QUIETER
UP to 3x quieter than conventional windows
DRAFTS FREE
100% drafts free. Instant savings on heating energy bills.
UNMATCHED SECURITY
unmatched home security. Up to 11- locking points per window available
FACTORY PRICING
Get DECA factory direct pricing on your custom-built windows and doors.
Request a Quote
Real Life Experience

Noise, Air & Water Leak Testing

Soundproof test
Rest assured your silent and peaceful Sleeping Hours guaranteed
air leak test
Even when cold, strong winds blow, your home remains warm and cozy
Water leak test
In the midst of a downpour, our windows keep your interior dry
what people say

our reviews

Before Deca Windows, we didn't realize how much we were missing out on. The noise reduction is superb,Nights are significantly quieter—passing cars are no longer bother." and we've seen a significant drop in our energy costs. These windows are a must for anyone looking to upgrade their home
Miranda Franklin
DECA Customer
Deca Windows stands out for its exceptional quality. The energy efficiency and noise-proofing exceeded my expectations. Choosing Deca was a decision I'll always appreciate.
Jordan Hayes
DECA Customer
So, before Deca Windows, my place was a bit of a noise party, and the energy bills were like my frenemy. But then, after getting Deca, it's like the chill vibes moved in. These windows are like the superheroes of quiet and energy efficiency. Plus, easy to clean! They open inside, and that tilt-to-vent move is a game-changer
Casey Rivera
DECA Customer
Real Life Experience

Noise, Air & Water Leak Testing

Soundproof test
Rest assured your silent and peaceful Sleeping Hours guaranteed
air leak test
Even when cold, strong winds blow, your home remains warm and cozy
Water leak test
In the midst of a downpour, our windows keep your interior dry
ONLY THE BEST WINDOW COMPONENTS

uPVC profile

Our 6-Chamber, 1/8in (3mm) walls thickness profile makes windows durable, noise resistant and thermally insulated.

Metal reinforced frames

Our 2mm thick galvanized steel, seamlessly integrated into a uPVC profile, ensures structural integrity during all weather conditions. Providing you peace of mind and long-lasting performance.

More than 30 years service life weather seals

5 Automotive grade weather seals engineered to ensure maximum contact throughout window - positioned around perimeter of the frame and sash

Advanced Insulated
 Glass Panels

Choose from laminated, low-e-coated, and argon-filled double and triple insulated glass options, to experience enhanced thermal insulation, soundproofing, and UV protection.

Up to 11-locking points per window

Our multiple locking points system engage with a single handle turn assures consistent compression around the window, providing enhanced security, soundproof, and energy efficiency.
Glazing options

Energy-efficient glass

Glass is one of the most critical components of a window, occupying approximately 70% of its area.
laminated double
double
Triple
Heat transfer through the window; UF
0.18
0.26
0.32
Value of heat resistance of material, R
5
4
5.5
Solar heat gain coefficient, SHGC
0.6
0.71
0.58
Visible light transmittance, VLT
0.71
0.8
0.71
Air leakage, AL
0.3
0.3
0.3
Sound transmission class, STC
40
32
48-50
Glazing options

Energy-efficient glass

Glass is one of the most critical components of a window, occupying approximately 70% of its area.
laminated double
double
Triple
Heat transfer through the window; UF
0.18
0.26
0.14
Value of heat resistance of material, R
5.5
5
7.2
Solar heat gain coefficient, SHGC
0.6
0.71
0.58
Visible light transmittance, VLT
0.71
0.8
0.62
Air leakage, AL
0.3
0.3
0.3
Sound transmission class, STC
40
32
48-50
Tempered Glass
Two to Five times more resistant than ordinary glass. When it breaks, it shatters into very small, dull-edged pieces that reduce the risk of injury.
Laminated Glass
For use in buildings where hurricanes or other natural disasters are a high risk. As windows for companies or homes at higher risk of break-ins.
Non-Conductive Spacers
• Best to keep glass warm inside
• Colors available
Low-E glass coatings
• Сaptures infrared and ultraviolet rays
• Repels the cold
• Keeps the heat
much more available
• Obscure or Frosted Glass: Provides privacy by diffusing light.
• Tinted Glass: Helps in reducing glare and heat from the sun.

Glass thickness available from 3mm (1/8)in to 10mm (25/64)in.
Submit the form 
to get your personalized quote
We will receive the list of options that you've chosen in configurator and contact you with a quote.
Click to upload or drag and drop
Pictures of your house and any other relevant files
Request a Quote

build your deca window

Frame color
Grill type
Handle
Hinges
Hinges color
Glass type
tempered
Request a Quote
Thank you for your request
We successfully received your request and are working on it.
our manager will contact you soon
Go back to the configurator
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How we work

DECA Windows & doors Experience

As part of our mission, we invite skilled installers and dealers like you to join our network
Contact us in a way that is convenient for you
forming a quote  to your standard or custom size windows
Get your order completed
in 4 weeks or less
Get your order delivered 
all across USA
Enjoy our 15-year warranty and technical support
Custom shapes

Window types

Two sections
Three sections
Curved type
Basement windows
Kitchen windows
Build with us according to your sizes and requirements today!
Every home project is unique. We offer custom 
sizes and shapes for our windows and doors.
We can build an option that fits your home perfectly.
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Transferable warranty

Longevity and Ongoing Support Guaranteed

We stand by our products with a 10-year warranty for glass and a 15-year warranty for the window frame, both transferable to a second owner.
15-year warranty
for the triple-layer rubber seals
10-year warranty
for all the glass
15-year warranty
for frames and sashes
10-year warranty
for the hardware.
Lifetime
of ongoing support
Our service

About DECA

Deca: Elevating Home Comfort. We create soundproof, energy-efficient windows and doors, all crafted with care in the Pioneer Valley. Your gateway to serenity and sustainability for a better living experience

Mission

Our mission is to make European-style windows and doors available to everyone by manufacturing them in the USA. Our products prioritize energy efficiency, sound insulation, thermal comfort, security, sleek aesthetics, durability, environmental considerations, and easy maintenance.

Difference

DECA is one of few local Tilt and Turn windows manufacturers located in the US, Massachusetts. Taking advantage of the German standards and technologies that proved their efficiency for over 70 years of development and innovations, we deliver premium quality windows with the speed and warranties of domestic suppliers. Furthermore, we proudly claim that our well-streamlined production processes allow for a more attainable price than European importers. When choosing DECA, you choose a local supplier who is always here to solve any issue and ensure a flawless user experience.

Values

The DECA’s founders and personnel are dedicated to ensuring long-term customer satisfaction and excellent cooperation experience. We keep innovating and improving our processes to provide the best quality, price and time-frames.
Contact form

Ready to transform your home with our Soundproof and Energy efficient  windows and sliding doors? Contact us today.

Spoiler alert! 

You’ll be amazed by our prices, time-frames, and ongoing support.
109 Apremont Way, Westfield, MA 01085
+1 (413) 475-9774
[email protected]
Click to upload or drag and drop
Pictures of your house and any other relevant files
Request a Quote
Thank you for your request
We successfully received your request and are working on it.
our manager will contact you soon
Oops! Something went wrong while submitting the form.

Contact Details

109 Apremont Way, Westfield, MA 01085
+1 (413) 636-7945
[email protected]