Doors
Door Installation in Greenwich
40 Years of Experience
Certified Professionals
Superior Workmanship with Proven Reputation
Stress-Free Process
Thermo-Seal Windows, Siding & Roofing, Inc.
Door Installation in Greenwich — Trusted by Tri-State Homeowners for Over 40 Years
Looking for professional door installation in Greenwich to improve your home's security, energy efficiency, and overall curb appeal? Thermo-Seal has been a trusted name for over 40 years, offering top-quality installation of doors from leading brands like Andersen, Therma-Tru, Harvey, and Pella. Whether you’re upgrading an entry door, adding a storm door, or replacing sliding glass doors, we provide expert services to homeowners throughout Greenwich and the surrounding Connecticut and New York areas.
From luxury homes in Belle Haven to classic Colonials in Cos Cob and Riverside, Greenwich homeowners trust Thermo-Seal for door installations that bring both beauty and durability to their property.
DOORS
Experience the Difference with Thermo-Seal Door Installation in Greenwich
In Greenwich, proper door installation is about more than just aesthetics—it requires precision and craftsmanship. At Thermo-Seal, all work is completed by our in-house, certified professionals—not subcontractors—so your installation is completed with consistency and care.
We offer a wide range of exterior doors customized for Greenwich homes:
✔ Entry doors for improved safety and elegant style
✔ Sliding glass doors that open up views and natural light
✔ French doors that add a refined, traditional touch
✔ Storm doors that increase protection and insulation
Our team helps you choose between fiberglass, wood, or steel materials, then installs your door with flawless attention to detail.
Solving Homeowner Pain Points with Precision Door Installation in Greenwich
If your current doors are outdated, drafty, or poorly installed, you could be losing energy and comfort daily. That’s why Greenwich residents choose Thermo-Seal for professional door installation designed to correct those issues and elevate your home's performance.
✔ Enhanced insulation and energy savings with sealed, efficient doors
✔ Strengthened security with durable frames and secure hardware
✔ Reduced outdoor noise and air infiltration
✔ Modernized exterior with high-end door styles and finishes
Thermo-Seal holds respected industry certifications, such as GAF Master Elite and Andersen Premier Contractor, bringing proven expertise to every Greenwich installation.
Who Benefits Most from Thermo-Seal Door Installation in Greenwich?
Our Greenwich door installation services are ideal for:
✔ Homeowners replacing outdated or worn-out doors
✔ Families upgrading for efficiency, security, or style
✔ Sellers preparing their homes for the market
✔ Anyone seeking skilled, professional installation backed by decades of experience
From waterfront properties to inland neighborhoods, we tailor our services to your Greenwich home's unique architecture and needs.
Long-Term Value That Goes Beyond the Installation in Greenwich
Choosing Thermo-Seal for your door installation in Greenwich delivers lasting advantages:
✔ Lower utility bills thanks to improved insulation
✔ Long-lasting, low-maintenance materials designed for New England climates
✔ Increased property value through curb appeal improvements
✔ The confidence of working with trained and certified professionals
It’s a functional and aesthetic upgrade you’ll benefit from every day.
Why Choose Thermo-Seal for Door Installation in Greenwich?
Thermo-Seal has proudly served Greenwich and the Tri-State region since 1985. Here's why we’re the go-to for door installation:
✔ Over 40 years of exterior remodeling experience
✔ Certified, in-house installers—no subcontracted work
✔ Premium products from Therma-Tru, Andersen, Harvey, and Pella
✔ Certifications from leading manufacturers like GAF
✔ Customer service recognized by Angi and the Better Business Bureau
We bring experience, reliability, and exceptional results to every job in Greenwich.
What is the average cost to install a door in Greenwich?
Door installation costs in Greenwich depend on the type of door, materials, size, and any structural adjustments required. Entry doors may need extra framing, while sliding and French doors can involve more labor.
We offer free, no-obligation in-home estimates in Greenwich, providing honest pricing and expert insight from the start.
What do you call someone who installs doors in Greenwich?
Our door installers in Greenwich are full-time, certified professionals—not general contractors. With training from top manufacturers, they bring consistent, expert-level results to every project we complete.
FAQs: Door Installation in Greenwich
How long does a door installation take?
The time required for door installation varies based on the door type and project complexity. A standard replacement may be completed in just a few hours, while more customized installations—such as French doors or entry doors with sidelights—can take longer. Thermo-Seal’s team will give you a clear timeline during your free in-home consultation.
Can you install a new door in an existing frame?
Yes, in many cases, Thermo-Seal can install a new door into your existing frame, depending on its condition and size compatibility. However, for optimal results, especially in older homes, we often recommend replacing both the door and frame to improve energy efficiency, fit, and security.
What types of doors do you install?
We install a wide range of doors, including entry doors, storm doors, sliding glass doors, and French doors. We work with trusted brands like Therma-Tru, Andersen, Pella, and Harvey, offering materials such as fiberglass, steel, wood, and vinyl to match your home’s style and needs.
Do your door installations come with a warranty?
Yes. All of our door installation projects are backed by manufacturer warranties and Thermo-Seal’s own workmanship guarantee. We’ll walk you through the specific warranty details based on the brand and product you choose.
How do I schedule a door installation with Thermo-Seal?
Scheduling is easy. Simply call us at (866) 901-6808 or fill out our online form to request your free, no-obligation estimate. One of our certified professionals will visit your home, assess your needs, and provide a clear, upfront quote.
Ready to upgrade your home with professional door installation?
Contact Thermo-Seal today to schedule your free in-home consultation. Experience the difference that certified craftsmanship, premium products, and four decades of expertise can make.
Call us today at
(866) 901-6808 or
Contact us today to schedule a project consultation.
Request A Free Estimate
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Contact Info.
Phone Number:
Email Address:
Showroom:
456 Sunrise Highway, Rockville Center NY 11570 - (516) 689-7214
Rye Corporate Office:
411 Theodore Fremd Avenue, Rye NY 10580 - (914) 635-3748
Stamford Office:
263 Tresser Blvd., Stamford, CT 06901 - (203) 990-1812
Melville Office:
68 South Service Road., Melville NY 11747 - (631) 710-6937
CLIENT REVIEWS
What Our Clients Are Saying About Us
Thermo-seal Windows provides exceptional customer service alongside high-quality products. Recently, I had the majority of my home's windows replaced by Aaron's team, and their performance was nothing short of impressive. They arrived on time, maintained a tidy work area, and dedicated themselves to ensuring a perfect installation of the windows.
Aaron and his team were amazing, from start to finish! They worked with us every step of the way and Aaron was always just a call or text away to answer any questions we had. The windows are perfect and we love them. We highly recommend working with Aaron and his team. They are professional, courteous and their work is top notch!
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