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Exterior Waterproofing in Old Bethpage, NY

When water reaches your foundation from the outside, through poor grading, a failed membrane, or saturated soil, the fix belongs outside too, not just masked from the inside.

Licensed Exterior Waterproofing service in Old Bethpage, NY - Arrow Tight Waterproofing Call +1-866-476-1348

Why Choose Our Specialized Exterior Waterproofing in Old Bethpage, NY

Four commitments that separate a properly trained exterior waterproofing crew from a generalist showing up with a truck and a hope.

Professional Exterior Waterproofing technician working in Old Bethpage, NY
1

Excavation & Membrane Expertise

Certification covers grading assessment and rubberized membrane application to manufacturer spec, verified on every job.

2

Local Grading Assessments

Active pooling against the foundation moves to priority scheduling ahead of routine appointments.

3

Itemized Excavation Pricing

Pricing accounts for landscaping restoration where excavation disturbs existing beds or hardscape.

4

Commercial-Grade Membrane Systems

We apply rubberized asphalt or sheet membrane rated for permanent below-grade exposure, not a consumer coating that degrades in a season or two.

Our Exterior Waterproofing Service Lineup

We don't run a one-size-fits-all playbook — every exterior waterproofing job starts from these core service components, adapted to what your property actually needs.

Foundation Excavation & Membrane Application

Drainage board over the membrane channels water down to the footing drain instead of pressing against the wall. This is the most thorough exterior fix available and typically carries the longest service life.

Footing Drain Installation & Repair

A footing drain intercepts groundwater at the base of the foundation and carries it away before it can build pressure against the wall.

Grading & Drainage Correction

Soil sloping toward the foundation sends every rainfall straight at your basement wall, regardless of how good the membrane below is.

Window Well Drainage Systems

We install well drains tied into the footing drain system with a clear cover to reduce debris.

Exterior Crack & Joint Sealing

Cracks and cold joints exposed during excavation get treated directly from the outside before the membrane goes over them.

24/7 Emergency Exterior Waterproofing experts in Old Bethpage, NY

How Our Exterior Waterproofing Process Works

Here's what happens between your call and a completed exterior fix.

1

Call Dispatch

Photos of the affected area, texted ahead, help the technician plan equipment before arriving.

2

Rapid Mobile Arrival

You'll get a text confirmation with an arrival window and any documents needed, like utility locate authorization.

3

Expert Assessment & Written Quote

A full grading and drainage evaluation identifies whether the fix needs excavation, drain repair, or grading correction alone.

4

Guaranteed Resolution

Excavation sites are backfilled, compacted, and regraded to proper slope before the crew leaves, with landscaping restoration included.

Customer Reviews & Testimonials

Real feedback from Old Bethpage-area customers who called us for exterior waterproofing.

Reliable Exterior Waterproofing contractor in Old Bethpage, NY by Arrow Tight Waterproofing

"They found our footing drain had completely collapsed after thirty years — explains why interior fixes never fully worked before."

B. — Homeowner, Old Bethpage

"Regraded the whole side yard and extended our downspouts as part of the job. Haven't seen water against that wall since."

Y. — Homeowner, Old Bethpage

"Excavation crew was careful with our landscaping and put everything back better than it was before."

E. — Homeowner, Old Bethpage

"They explained why interior injection alone wasn't going to solve our specific problem before recommending exterior work."

V. — Property Owner, Old Bethpage

Frequently Asked Questions

High-intent questions we hear most often about exterior waterproofing in Old Bethpage, NY.

How quickly can a crew start an exterior assessment in Old Bethpage, NY?+
Response time depends on the assessment scope needed, but active water intrusion moves up the schedule.
Do you provide upfront, flat-rate pricing?+
Yes, quotes are itemized by excavation footage and membrane material, in writing before any digging starts.
Why would I need exterior work if interior injection already stopped the leak?+
Interior injection manages symptoms at the wall's interior surface, but exterior waterproofing addresses the actual source — a longer-term fix when grading or membrane failure is the root cause.
How long does exterior waterproofing take?+
We'll give you a realistic project timeline during the written quote, including any landscaping restoration.
Will excavation damage my landscaping?+
Significant landscape features are discussed during the quote so there are no surprises.
Is exterior waterproofing covered by a warranty?+
Yes, membrane and footing drain work carries a written warranty against failure at the treated wall section.
Do you need to remove my patio or deck to excavate?+
Where possible, we work around existing hardscape, but a patio or deck directly over the excavation zone may need temporary removal, which we'll explain clearly upfront.
How deep does the excavation typically go?+
We confirm exact excavation depth during the assessment based on your specific foundation drawings or an on-site measurement.

Service Area Coverage

Our exterior waterproofing crews cover Old Bethpage and the surrounding Old Bethpage, NY service area, with regional dispatch keeping response times tight regardless of which part of the footprint you're in.

Because exterior work requires excavation crews, coverage is more regional than interior services — worth confirming by phone either way.

Old Bethpage is a hamlet and census-designated place (CDP) located on Long Island in the Town of Oyster Bay, Nassau County, New York, United States. The population of the CDP was 5,283 at the 2020 United States Census. It is served by the Old Bethpage Post Office, ZIP code 11804.

Zip Codes in Old Bethpage, NY that we also serve: 11804 11735

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Notice: Arrow Tight Waterproofing is a free referral service designed to assist homeowners and businesses in connecting with independent local contractors. All contractors and service technicians are independent and Arrow Tight Waterproofing does not warrant or guarantee any work performed. It is the responsibility of the customer to verify that the hired contractor furnishes the necessary license and insurance required for the work being performed. All calls are routed to independent local service providers.

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