Beautiful American craftsman home at sunset with LS Windows

American Built. American Beauty. Crafted for Life.

Premium Windows, Siding, and Roofing — Proudly Made in the USA.
Transform Your Home with Unmatched Quality, Durability, and Efficiency.

ENERGY-EFFICIENT
WINDOWS
LIFETIME CRAFTSMANSHIP
GUARANTEE

Our Standards

Uncompromising
Craftsmanship

Every sash, joint, and seal is engineered for architectural perfection and performance that lasts a lifetime.

LS Windows craftsmanship precision detail
MITER PRECISION ± 0.1 mm
01

Distinctive

Slim profiles engineered without bulk — a bold, commanding aesthetic that frames your view, not obstructs it.

02

Precise

Every corner mitered to 0.1 mm. Every seal triple-tested. Our windows don't just look perfect — they perform perfectly.

03

Enduring

UV-stabilised frames. Weatherproof seals rated 50+ years. Triple-pane insulated glass. Built for every American climate.

LS Windows premium showroom
0+ Years of Excellence

About Us

Experience & Trust
That Counts

L & S Windows is an experienced company that has been serving the area for years. Our attention to detail is what keeps our customers coming back for repeat business, as well as referring our company to business associates, friends, and family.

Since experience counts, you can trust that we “can” and “will” get the job done right the first time. At L & S Windows we strive to impress you, not just meet your expectations. We take a lot of pride in the fact that quality service, craftsmanship, and value are the cornerstones of our business.

By referral and direct experience, L & S Windows customers have come to know that we honor our commitments and deliver results. Our highly skilled, thoroughly trained team handles all of the variables in our industry to serve you with the finest customer service available.

0+ Homes Transformed
0% Satisfaction Rate
0+ Years in Business
See Our Services

Our Services

Professional Solutions
Tailored for You

We offer custom solutions that are designed to fit both your budget and schedule. We pride ourselves on offering the highest level of quality and service available.

01
Vinyl Windows

Windows

Our vinyl windows have cutting edge technology to help you save big money on high energy bills. They look amazing and increase the value of the home, so whether you’re looking to conserve energy or make your home more stylish, L&S Windows can help with all of your vinyl window needs.

Request Quote
02
Vinyl Siding

Siding

We can install new vinyl siding on your home that will enhance curb appeal, increase energy efficiency and most of all transform the outside of your home into something incredible. New siding can make even the oldest of houses look brand new!

Request Quote
03
Roofing Installation

Roofing

In addition to the age of your roof other circumstances, such as severe weather damage or persistent leaks, can also warrant a sooner roof replacement. The ultimate decision should be guided by professional advice, ensuring your home’s longevity and structural integrity. Certainteed and IKO lead the industry with innovation and high standards. Let us get you the industry-leading materials to instantly improve the value and curb appeal of your home.

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Portfolio

See Our Windows
In Every Space

From airy living rooms to spa-like bathrooms — LS Windows elevate every room.

Luxury exterior

Sliding Patio Door · White Matt

Interior living room

Casement Window · Classic White

Luxury bathroom

Picture Window · Jet Black

LS Showroom

Showroom · Multi-Style

Living room with LS Windows - White Classic Trim Living room with LS Windows - Jet Black Trim
LS WINDOWS WHITE CLASSIC
🇺🇸

Why Choose LS

Built Different.
In Every Way.

Ultra-Slim Profiles Triple-Pane Glass 60+ Color Finishes Lifetime Warranty Custom Sizing White-Glove Install
Sight-lines: -40%
U-Factor: 0.17
Finishes: 60+
Seal Rated: 50Y
Custom Built
AAMA Class-A
SPEC DIAGNOSTIC ACTIVE
40% SIGHT-LINE REDUCTION
01 ULTRA-SLIM PROFILES
01

Ultra-Slim Profiles

Our proprietary multi-chamber design achieves sight-lines up to 40% thinner than standard frames — maximizing glass area and natural light.

02

Triple-Pane Glass

Argon-filled triple glazing delivers a U-factor as low as 0.17 — keeping your home quiet, comfortable, and energy-efficient year-round.

03

60+ Color Finishes

From matte Arctic White to bold Anthracite Grey and brushed Champagne — every finish is UV-stabilized and rated for 50+ years.

04

Lifetime Warranty

We stand behind every window we make with the industry's most comprehensive lifetime limited warranty, fully transferable to future owners.

05

Custom Sizing

Every window is built-to-order at our US factory. No standard sizes, no compromise — your exact opening, your exact vision.

06

White-Glove Install

Our certified crews treat your home with the same care as the windows themselves. Same-day cleanup, zero disruption.

Triple-pane window cross-section

Technology

Engineered for
Peak Efficiency.

Every LS window is a thermal engineering achievement. Our multi-chamber profiles and triple-pane argon systems exceed Energy Star in all 50 US climate zones.

0.17U-Factor
(industry low)
0.20Solar Heat
Gain Coeff.
42dBSound
Reduction
30%Energy Bill
Savings
Request Tech Sheet

LS WINDOWS

COLORS

A rich palette of 60+ finishes lets you match any architecture. From matte industrial to elegant metallic — every detail emphasises the minimalist profile design.

Request Samples
LS Windows color profiles

Made in the USA

American-Made.
World-Class Quality.

Every LS window is manufactured in our US facility. We control every production stage — from raw material to your doorstep — and back it with a lifetime warranty.

Energy Star
Certified
🇺🇸
100% USA
Manufactured
🛡
Lifetime
Warranty
AAMA / WDMA
Certified

What Homeowners Say

Trusted by
Thousands

Michael R.
Sarah K.
James T.
Michael R.Homeowner, Austin TX
"The LS Windows team completely transformed our home. The slim profiles let in so much more light, and energy savings were noticeable from the very first month. World-class quality."
Sarah K.Interior Designer, New York
"I specify LS Windows on every premium project. The range of finishes, the precision of the profiles, and the installation service — completely unmatched in the USA market."
James T.Architect, Seattle WA
"The ultra-slim frames achieve sight-lines I cannot get anywhere else. LS Windows are my first and only call for high-end residential projects."
Get a Quote

Contact Us

Let's Talk About
Your Project

Ready to transform your home? Our specialists will design a custom solution tailored to your architecture, climate, and style.

📞
Emailhello@lswindows.com
📍
Showroom Address1046 Main St, Lewiston, ME 04240
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Monday - Friday8:00 AM - 5:00 PM
Saturday9:00 AM - 1:00 PM
SundayClosed
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