Doors
Door Installation in New York City
40 Years of Experience
Certified Professionals
Superior Workmanship with Proven Reputation
Stress-Free Process
Thermo-Seal Windows, Siding & Roofing, Inc.
Door Installation in New York City — Trusted by Tri-State Homeowners for Over 40 Years
Need dependable door installation in New York City to improve your property’s energy efficiency, safety, and overall look? Thermo-Seal brings 40+ years of experience, offering top-quality door installation using premium brands like Andersen, Therma-Tru, Harvey, and Pella. Whether you're replacing an old entry door, adding a protective storm door, or upgrading to modern sliding glass doors, we proudly serve homeowners across all five boroughs of NYC and the greater New York and Connecticut area.
From historic brownstones in Brooklyn to townhomes in Queens and walk-ups in Manhattan, Thermo-Seal delivers door installations that are built to last in NYC’s diverse and demanding environments.
DOORS
Experience the Difference with Thermo-Seal Door Installation in New York City
Professional door installation in New York City takes more than basic tools—it requires experience, craftsmanship, and materials built to perform in all conditions. At Thermo-Seal, only our certified, full-time staff complete the work—never subcontractors—so you can count on quality at every step.
We offer a range of door styles suitable for homes and buildings throughout NYC:
✔ Entry doors that provide security and visual appeal
✔ Sliding glass doors for increased light and space access
✔ French doors for a sophisticated, open interior vibe
✔ Storm doors that improve insulation and offer year-round protection
Our team helps you select materials—steel, fiberglass, or wood—and ensures your new door fits and functions perfectly in your space.
Solving Homeowner Pain Points with Precision Door Installation in New York City
In a city like New York, even small inefficiencies can cause big problems. Drafty, poorly installed, or outdated doors can increase energy costs and reduce home security. Thermo-Seal’s NYC door installation services help solve these problems quickly and effectively.
✔ Improving energy performance with insulated, sealed installations
✔ Reinforcing safety with high-quality hardware and solid materials
✔ Reducing city noise and blocking out drafts
✔ Enhancing the curb appeal of everything from brownstones to co-ops
We bring the same elite craftsmanship to every borough of NYC that earned us certifications like GAF Master Elite and Andersen Premier Certified Contractor.
Who Benefits Most from Thermo-Seal Door Installation in New York City?
Thermo-Seal’s door installation in New York City is ideal for:
✔ Homeowners upgrading worn, outdated, or inefficient doors
✔ Families renovating for comfort, security, or modern aesthetics
✔ Property owners improving market value or prepping for resale
✔ Anyone seeking top-tier service from a trusted, experienced contractor
Whether you live in a pre-war building or a newly renovated home, we adapt each installation to your specific needs and property type.
Long-Term Value That Goes Beyond the Installation in New York City
Choosing Thermo-Seal for your NYC door installation means getting real value:
✔ Reduced utility costs with better insulation
✔ Low-maintenance finishes built to handle city conditions
✔ Higher property value with upgraded exterior appearance
✔ Confidence that certified experts handled your project right
It’s a difference you’ll appreciate every time you walk through your door.
Why Choose Thermo-Seal for Door Installation in New York City?
Thermo-Seal has proudly served New York City and the Tri-State area since 1985. Here’s why we’re a trusted name across all five boroughs:
✔ More than 40 years of experience in exterior home improvement
✔ No subcontractors—just highly trained, certified team members
✔ Trusted products from Therma-Tru, Andersen, Harvey, and Pella
✔ GAF Master Elite and other respected certifications
✔ A+ BBB rating and multiple Angi awards for service excellence
From Manhattan to Staten Island, we deliver NYC door installation with professionalism and care.
What is the average cost to install a door in New York City?
The cost of door installation in New York City can vary depending on the style, size, materials, and structural needs. Entry doors may require extra framing, and apartments or brownstones often involve more complex planning.
That’s why Thermo-Seal offers free, no-pressure in-home estimates across NYC, so you get clear pricing and expert recommendations tailored to your building.
What do you call someone who installs doors in New York City?
While some may call them contractors or carpenters, Thermo-Seal’s NYC door installers are certified, full-time experts. They’re trained by top manufacturers to ensure precise, code-compliant installations that last for years.
FAQs: Door Installation in New York City
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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