“James came out Monday, measured, showed me three Therma-Tru samples. They were back Friday at 7:30 and by 3 PM my old steel door was gone and a new fiberglass in its place. Crew was spotless. Feels like a different house.”

The door.
Installed in a day.
Premium entry, storm, French, and sliding door installation across Nassau and Suffolk — measured, delivered, installed, and cleaned up before the sun goes down. 2,800+ Long Island doors since 2011. Therma-Tru Certified. Andersen ProCertified.
No sales pitch. No "today only" nonsense. We measure your house, we give you a real number, you think about it.
Get a real ballpark
Six quick questions. We'll call you back within 4 business hours. No sales pitch, ever.
Three materials, done right. That's the whole menu.
We don't chase roofs, windows, gutters, or kitchens. We install fiberglass, cedar, and Therma-Tru fiber cement on Long Island homes, and we've gotten pretty good at it.
Tuesday at 8 means Tuesday at 7:50.
We have broken this rule once in the last decade and still talk about it. Most doors complaints online start with "they never showed up." That will not happen here. If you would rather talk to a human than fill out a form, here is the number.
2800 homes. Same towns. Real photos.
Every one of these is a Long Island house we resided. The "before" shot is the day we pulled up. The "after" is the day we drove away. No staging, no filters.
















Find your door in three questions.
Style, material, color. Three clicks, one preview, a real installed-price range. Most homeowners land on a final choice in under 90 seconds. It’s the closest thing to walking our showroom without getting off the couch.
Measured, delivered, installed & cleaned up — before sundown.

Which silhouette?
Three door shapes cover roughly 90% of Long Island homes. Pick the one that reads closest to yours.
Why 2800+ Long Island homeowners hired us.
One day. One crew. No drama.
If you pick a stock Therma-Tru or Andersen unit, the door is on your house in a single day. No "we'll be back Thursday." No open hole in your house overnight.
One trade. One focus.
We don't do windows. We don't do doors. We don't do roofs. We do doors. A crew on its 2,800th install works differently from one on its 50th, and you'll see it in the caulk line.
Factory-certified, not just factory-trained.
We are Therma-Tru Certified Installers and Andersen ProCertified Contractors — the manufacturers actually audit our work. Fewer than 3% of LI door installers carry both.
Licensed, insured, backed.
Nassau HIC #H2808970000. Suffolk HIC #52117-H. $2,000,000 liability. Workers comp on every crew member. BBB A+ Accredited. EPA Lead-Safe.
James answers. Dana answers. No chatbot.
No AI on our site. No call center. Call between 7am and 6pm Monday through Saturday and you get Dana in the showroom or James in the truck. Nights and weekends, we call back in the morning.
A real showroom you can visit.
Most door installers work out of a pickup. We run a real showroom on Broadway in Huntington Station — two rows of full-size Therma-Tru and Andersen units, hardware samples, stain swatches. Saturdays by appointment.
What the neighbors say.
“We had a 1970s front door that was warped shut every winter. Long Island Door Co. got us a Therma-Tru Fiber-Classic in mahogany, installed in one day, and it matches our shutters perfectly. Zero drafts now.”
“20-year-old patio slider finally gave up. LI Door Co. had the Andersen replacement in stock, installed in under 7 hours. The new one slides like butter. Crew was polite and cleaned up every speck.”
Nassau County + Suffolk County. That's our whole map.
Our shop is on Old Country Road in Hicksville, smack in the middle of the island, so no address on Long Island is more than an hour from our front door.
Two tools most contractors won't give you.
Every other doors website makes you fill out a form and wait. We built actual calculators so you can see a real ballpark and visualize the finish before you even call us.
The questions every Long Island homeowner asks.
Every one of these is a real question we hear weekly on the phone, in walk-throughs, or at Home Depot on a Saturday morning. No corporate hedging, just the answer.
See all 30+ FAQsPricing varies by door type, material, sidelights, transoms, and hardware. Typical installed ranges:
- Storm door: $600 – $1,400
- Steel entry door: $1,800 – $3,400
- Fiberglass entry door (Therma-Tru): $2,800 – $5,800
- French doors (interior or patio): $2,400 – $6,800
- Sliding glass patio door: $2,200 – $7,200
See our full pricing guide or use the estimator for your own ballpark in under 2 minutes.
Ready to get a real number on your house?
Tell us your address and Ryan will call you back within 4 business hours to schedule a walk-through. The estimate is free. The walk-through takes 30 minutes. There's no pitch at the end.
or fill out the form, it takes 20 seconds
Schedule a walk-through
Five fields. We take it from there.




