Instant Door Installation Estimate for Long Island Homes
Six questions, one ballpark, no obligation. We built this because every other contractor makes you fill out a form, wait 3 days, and then calls you with a "special offer." Ours is a calculator.
How many doors?
Count each opening you want replaced
Most common: 1 front entry door. Multi-door jobs (entry + patio slider + storm) get a crew-day discount.
How our door estimate works
This calculator uses real pricing data from 2800+ door installation jobs across Nassau and Suffolk County since 2011. It accounts for door type, number of openings, material choice, and the condition of the existing opening.
The result is a ballpark range, not a fixed quote. It gets most homeowners within 15% of the final number. The gap comes from variables we cannot see remotely: the condition of the framing behind the old jamb, whether any rot is hiding under the threshold, historic district review requirements, and whether you want sidelights or a transom added to the opening.
To get the real number, schedule a free walk-through. James or Miguel will come out, take measurements, show you physical Therma-Tru and Andersen door samples, and discuss any site-specific factors. You get a written quote within 48 hours. No deposit to hold a date, no follow-up pressure, no expiration date on the quote.
Every quote includes: full tear-out of the existing door, new weatherstripping and threshold, new door installation, interior and exterior trim, standard hardware (lockset and hinges), permits (we pull them), debris hauling, jobsite cleanup, and our 10-year workmanship warranty.
Want the real number for your house?
The calculator gets you within 15%. A free walk-through gets you to the penny. Schedule one and we send a written quote within 48 hours.
or fill out the form, it takes 20 seconds
Schedule a walk-through
Five fields. We take it from there.