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Top-Rated Roof sealant application pros in Port Washington - Updated Nov 2026

All Proven Construction, LLC
5.0(
59
)
Sealant for Roof - Apply

Serving Port Washington, NY and surrounding areas

Approved

In business since 2011

Free estimates

Credit card accepted

"I call all proven for an estimate regarding a leak that I had on my porch roof. Technician vini came for an estimate He suggested us to apply sealer on the roof and gave us good deal less that we thought that's is going to cost. He resolve our problem no more leaks in my roof.i suggest him to everyone who needs roof service,really honest guy. Thank you vini"
Response time2 days
8 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Onyx Home Construction, Inc.
Onyx Home Construction, Inc.
4.7(
139
)
Sealant for Roof - Apply

Serving Port Washington, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"Very professional and cleaned up all work. Would highly recommend. Dimitri called very quickly after on request/ came same day for estimate . Came next day to repair. Pricing was more than fair. Dimitri also took before and after pictures of roof and explained to me where the leaks were coming from and not only went out of way to fix the problem but went beyond insure that the flashing and new shingles were installed properly. He also moved my dryer vent that that was previously installed incorrectly and went to Home Depot to get the proper materials for the vent along with calling me at the store to confirm that he was able to get all the materials before coming back. Been doing construction on my homes for many years and I'm kicking myself on not using Dimitri in the past. Now have many more projects lined for this company."
Gutter guard
Gutter Guard
Gutter Guard
Gutter Guards
Gutter Guards

+53

Response time4 hrs
Response rate99%
16 neighbors recently requested a quote
Avatar for Alb Best Way Construction
Alb Best Way Construction
4.8(
299
)
Sealant for Roof - Apply

Serving Port Washington, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Tony was extremely personable and professional throughout the entire roofing experience. I would highly recommended Alb Best Way Construction to anyone looking for a new roof. The work was top notch and the cleanup afterwards was great"
CHIMNEY FLASHING
SHINGLES OWENS CORNING DURATION
SPANISH TILE ROOF REPAIR
NEW RUBER ROOF OVER FLAT ROOF
NEW ROOF REPLACE

+15

Response time4 hrs
Response rate91%
34 neighbors recently requested a quote
Avatar for Non Stop Home Improvements Inc
Non Stop Home Improvements Inc
5.0(
57
)
Sealant for Roof - Apply

Serving Port Washington, NY and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"Owner Deniz Aksan is very professional and was a pleasure to work with. He showed up timely on the day promised and the job was done quickly and every detail was accounted for. After they left everything was cleaned up and besides the new roof and garage caps it was as if they were never there - everything was left spic and span. i couldn't have asked for better service, but the quality of the work performed and life-time guarantee on the roof just was icing on the cake. I would hire him again in a heartbeat."
New Roof - Setauket
New Roof - Setauket
New Roof - Setauket
New Roof - Setauket
New Roof - Setauket

+12

Response time1 day
Response rate100%
3 neighbors recently requested a quote
Avatar for Landstar Construction
Landstar Construction
5.0(
28
)
Sealant for Roof - Apply

Serving Port Washington, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Emergency services offered

"Steve from Landstar Construction was honest and gave me a very fair price. The finished job was excellent and I was extremely happy with my new roof. I highly recommend Landstar Construction for your roofing needs."
COPPER FLASHING
NEW ROOF
SKYLIGHT REPLACEMENT
SKYLIGHT REPLACEMENT
Paint Gaco

+3

Response time4 hrs
Response rate100%
136 neighbors recently requested a quote
Avatar for All Ways Construction, Inc.
All Ways Construction, Inc.
5.0(
267
)
Sealant for Roof - Apply

Serving Port Washington, NY and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"Very quick service. Good quality work. Larry repaired our roof and reassured us that we should be ok for a long time. He went out of his way to get the work done ASAP so that we don t have further damage from the rain. Very polite and professional. We will be calling All Ways Construction again for additional repairs."
New chimney flashing
New supreme skylight
New supreme skylight
New plywood
New roofing asphalt shingles

+49

Response time4 hrs
Response rate86%
12 neighbors recently requested a quote
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Showing 1-10 of 424

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