10 top-rated leak repair contractors serving Smithtown
Nothing in our license data covers Smithtown yet, so the leak repair companies below came from a Google search instead. Add together the Google reviews behind Smithtown's 10 companies and you reach 1,342, averaging 5.0 stars. If water is dripping through your ceiling in Smithtown right now, open the first-hour guide while you decide who to call.
Google Maps ratings checked · How we rank
46.0 innormal precipitation a year
Rainfall in Smithtown
Normal annual precipitation near Smithtown runs 46.0 inches, according to federal climate data.
A roof that's held up fine through a dry stretch can still fail once Smithtown hits its wettest weeks in December.
That seasonal jump is worth keeping in mind if a leak in Smithtown seems to appear out of nowhere.
Data: NOAA National Centers for Environmental Information, U.S. Climate Normals 1991-2020 (annual/seasonal and monthly, by station) (1991-2020), from the nearest NOAA station 7.4 mi away.
What federal hazard data shows for Smithtown
On FEMA's county-level hazard index, wind risk around Smithtown comes in at Relatively High.
A hard wind event can lift shingle edges or shift flashing on a Smithtown roof just enough to start a leak that wasn't there the week before.
A post-storm look at the roof is a reasonable habit for any Smithtown homeowner after a windy night.
- Hail
- Relatively Low
- Strong wind
- Relatively High
- Hurricane
- Relatively High
- Wildfire
- Relatively Low
Data: FEMA, National Risk Index for Natural Hazards - County-level table, v1.20 (v1.20, December 2025).
Top-rated leak repair contractors serving Smithtown, NY
Strongest Google rating first, discounted when a business has barely been reviewed; that's not a license check, so confirm the paperwork before anyone gets on your roof.
Long Island Roofing and Siding
Roofing contractor
- Google rating
- Reviews
- 750
- Area
- Ronkonkoma 11779
Chief Cornerstone Roofing
Roofing contractor
- Google rating
- Reviews
- 88
- Area
- Lake Grove 11755
Long Island Roof Repair
Roofing contractor
- Google rating
- Reviews
- 70
- Area
- St James 11780
Iq Edge Construction Inc.
Roofing contractor
- Google rating
- Reviews
- 61
- Area
- Hauppauge 11788
Empire Gen Roofing & Chimney Smithtown
Roofing contractor
- Google rating
- Reviews
- 53
- Area
- Hauppauge 11788
Tom Jannace Roofing, Inc.
Roofing contractor
- Google rating
- Reviews
- 54
- Area
- Stony Brook 11790
Roof Repair Long Island
Roofing contractor
- Google rating
- Reviews
- 30
- Area
- Brentwood 11717
HOGAN ROOF
Roofing contractor
- Google rating
- Reviews
- 187
- Area
- Lake Grove 11755
All Island Pro Roofing & Chimney
Roofing contractor
- Google rating
- Reviews
- 39
- Area
- Hauppauge 11788
Universal Builders Group Roofing & Chimney
Roofing contractor
- Google rating
- Reviews
- 10
- Area
- Smithtown 11787
Questions to ask a {city} roof leak repair company
- Can you find the actual source before you quote a repair, not just patch where the ceiling is wet?
- Is this a contained repair, or does it point to a bigger problem with the roof?
- Will you check the attic and insulation for existing water damage, not just the roof surface?
- What's your timeline if it's actively raining versus once it's dry?
- Do you offer a temporary tarp while a full repair is scheduled?
- What's covered by a workmanship warranty on the repair itself?