Coughlin Windows and Doors Inc.
Window Installation in San Marcos
Upgrade your San Marcos home with professional window installation services from Coughlin Windows & Doors. Our dedicated team of window installers delivers expert craftsmanship to ensure your windows look great, improve efficiency, and stand the test of time.
San Marcos Window Installation Services
Our window installation services in San Marcos are crafted to provide long-lasting quality and efficiency. Properly installed windows can improve insulation, reducing the strain on your HVAC system and lowering energy costs. Our experienced team ensures each window fits perfectly, eliminating drafts and potential leaks. New windows also add to your home’s curb appeal, enhancing both the exterior and interior with modern designs and increased natural light.

Window Styles
Explore our portfolio of meticulously crafted additions, stunning remodels, and bespoke custom homes, each a testament to our dedication to quality, innovation, and client satisfaction.
Seeing is Believing
Visit Our Showroom
At Coughlin Windows, we take pride not only in our products and services but in developing genuine and long-lasting relationships with our customers. At our showroom, you can take the time to touch and feel our products, view examples of our work, and take that first step toward completing your project.
Trusted Experience, Proven Results
At Coughlin Windows, we believe in providing exceptional service, quality, and peace of mind. Your satisfaction and confidence in our work are always our top priorities.

Why Coughlin Windows?
We take pride in delivering seamless window and door installation services tailored to San Marcos homeowners. Our team of experienced local window installers ensures every project is completed efficiently, professionally, and with the utmost respect for your home.
Expert Craftsmanship
Our skilled window installers are trained to provide precise, high-quality installations. We focus on doing the job right the first time, ensuring durability and superior performance for your windows and doors.
High-Quality Materials
We use only the best window and door materials, offering energy efficiency, lasting durability, and a clean design. Our products are made to enhance your home’s comfort and value.
Reliable Service
From consultation to clean-up, we focus on your satisfaction. Our team works around your schedule, finishes projects on time, and leaves your home as clean as they found it.