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Top-Rated Doors (exterior) installers and replacers in Mount Sinai - Updated Nov 2026

Lang Co Construction
4.7(
161
)
Doors (Exterior) - Install or Replace

Serving Mount Sinai, NY and surrounding areas

Approved

In business since 1988

Free estimates

Warranties offered

"I recently had a new sliding patio door installed, and the experience was outstanding from start to finish.John and joe arrived on time, both of them worked efficiently without making a mess. They removed the old door carefully, prepared the opening properly, and installed the new unit with precise alignment so it glides smoothly and seals tightly. The door looks great, operates quietly, and has already improved the natural light and energy efficiency in my dinning room. My kids are like more sitting at dinning tablet during the day given the ambient light. Communication was clear throughout— He explained the process, answered questions, and cleaned up completely before leaving. The whole job was finished in time without delay as promised, John and his team show professional workmanship. Highly recommended for anyone needing a patio door replacement and any home improvement projects."
5
1 After
After Second Story Added
1 After
1 After

+116

Response time12 hrs
1 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for BuildingLI.com - BLI Facilities LLC
BuildingLI.com - BLI Facilities LLC
5.0(
32
)
Doors (Exterior) - Install or Replace

Serving Mount Sinai, NY and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"We were extremely happy with the work performed by H&M. Moises, Hector and crew were courteous and did whatever needed to please us. They did most of the renovation in our condo......painting, installation of bathroom cabinets, sink, installed tile floor, etc. They also installed vinyl flooring in our kitchen, living and dining rooms. They had a plumber replace our heating baseboard, I would highly recommend H&M if you want excellent work done!!"
before demo
kitchen demolition
demolition complete
kitchen tile job in progress
kitchen tile

+172

Response time7 hrs
Recommended by76%of homeowners
Avatar for New Edge Carpentry
New Edge Carpentry
5.0(
11
)
Doors (Exterior) - Install or Replace

Serving Mount Sinai, NY and surrounding areas

Approved

In business since 2009

Customers say: Quick response

"Punctual, clean, and great pricing. Bob was great. He arrived on time, cleaned up and was extremely polite and courteous to my family. Bob installed two outside doors and they look great. We will be using New Edge Carpentry again for more work around the house."
Bifold doors/flooring and trim
window/floor trim and laminate flooring
trim installation
floor and window trim installation
sliding door installation

+1

Response time4 hrs
Recommended by100%of homeowners
Avatar for Brown Property Services
Brown Property Services
4.8(
25
)
Doors (Exterior) - Install or Replace

Serving Mount Sinai, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Warranties offered

"We cannot say how happy we are with the work we had done by central construction. Tom was beyond helpful and went above and beyond to make us happy. He even helped us move some furniture when he saw us struggling with it...he is just a super nice guy! I am a perfectionist and we were working with tight timelines, despite both of these things, Tom got the job done and done well. He was responsive, punctual and trustworthy. They painted just about our whole house, installed doors, fixed holes in walls, sanded and painted chandeliers and banisters, pained an awesome accent wall for our son and created a pathway and stair through an old wall. I will definitely be using them again for any future work. They are awesome!!"
West Islip-1
Farmingdale-1
Farmingdale-2
Interior Update
Interior Update

+87

Response time6 hrs
Recommended by66%of homeowners
Avatar for Premier Services
Premier Services
3.5(
39
)
Doors (Exterior) - Install or Replace

Serving Mount Sinai, NY and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Premier Services Review for Premier Services I recently hired Premier Services for a home project that included sanding, spackling, painting, and window sill replacement. Their work was nothing short of exceptional. From start to finish, the team demonstrated professionalism, attention to detail, and a commitment to quality. The crew arrived on time each day, maintained a clean workspace, and communicated clearly about the progress of the job. The surfaces were meticulously prepared before painting, and the window sill replacements were seamless and sturdy. The final paint finish was smooth and flawless, breathing new life into the space. Premier Services exceeded my expectations, and I would confidently recommend them for any home renovation or repair needs. They truly deliver craftsmanship and reliability at its finest. Rating: [Rating Out of 5 Stars]"
Additional Photos
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Additional Photos

+1

Response time11 hrs
Response rate100%
Recommended by40%of homeowners
Avatar for Handy Hubby
Handy Hubby
3.3(
43
)
Doors (Exterior) - Install or Replace

Serving Mount Sinai, NY and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"I called and happened to get Steve right away and since he was in the area he came right over. He examined the blind to determine if it could be fixed without a replacement piece and since it could he did the repairt quickly and efficiently. He was reasonable and very pleasant."
Stand Alone  Structure
Painted wood porch
Large deck and covered area
Large deck and covered area
Before - Pad removed

+5

Recommended by78%of homeowners
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FAQs for doors (exterior) installation and replacement projects in Mount Sinai, NY

If your entry bakes in direct sun, fiberglass is the clear winner. The material shrugs off extreme heat, stays energy-efficient, and won’t warp or fade the way wood sometimes can. Paired with low-E or UV-blocking glass, a quality fiberglass door keeps hot air out, cool air in, and should serve you reliably for roughly two decades.

A seasoned door pro can hang a replacement door in two to four hours—mounting the slab, tweaking the fit, and adding hinges, knobs, and weatherstripping. If the jamb needs repairs or you’re cutting a brand-new opening, plan on extra time so everything lines up and seals tightly. Either way, most projects wrap up in a single afternoon.

The Mount Sinai, NY homeowners’ guide to doors (exterior) installations and replacements

From average costs to expert advice, get all the answers you need to get your job done.