Tom Jannace Roofing, Inc. is a GAF-certified residential roofing contractor serving Lake Grove, NY and all of Suffolk County since 1990. We offer roof repair, roof replacement, new roof installation, storm damage response, skylight installation, and attic ventilation — with free, no-obligation inspections and honest estimates. Licensed, insured, A+ BBB rated, and no subcontractors. Call (631) 751-4734.
Tom Jannace Roofing, Inc. provides residential roof installation, roof repair, inspections, storm damage repair, skylight work, and attic ventilation. Serving Suffolk County since 1990.
Since 1990 Serving Suffolk County
A+ BBB Rating
GAF Certified Contractor
Licensed & Insured
Complete Roofing Services in Lake Grove, NY
Roof Repair in Lake Grove, NY
As a trusted roof repair contractor in Lake Grove, NY, we diagnose the actual source of a leak — not just patch the symptom. Our Lake Grove roof repair service covers shingle replacement, flashing repair, chimney and skylight waterproofing, valley sealant work, ridge cap repair, and storm damage restoration. We show you what we find before recommending a fix.
Roof Replacement in Lake Grove, NY
When repair is no longer the right call, our Lake Grove roof replacement service delivers a complete, GAF-certified replacement — full tear-off, deck inspection and repair, ice and water shield at eaves and valleys, synthetic underlayment, and architectural asphalt shingles installed to manufacturer standards. Workmanship warranty, manufacturer warranty, and a clean job site when we are done.
Roof Installation in Lake Grove, NY
Building new in Lake Grove or adding to an existing home? We coordinate new-construction roof installation directly with your builder — code-compliant, GAF certified, properly ventilated, and installed on schedule.
Storm Damage Roof Repair in Lake Grove, NY
Nor'easters, summer wind events, and ice storms all leave their mark on Lake Grove roofs. We respond quickly with thorough post-storm inspection, emergency tarping when needed, and permanent repairs using materials that match your existing roof. Insurance documentation is provided on request.
Why Lake Grove Homeowners Choose Tom Jannace Roofing
Straight work. Clear estimates. No subcontractors. Our team delivers residential roofing services across Suffolk County with a focus on quality and long-term protection.
Free Inspections & Estimates
Get a no-obligation inspection and a clear estimate so you can make the right call before small issues turn into expensive damage.
GAF Certified Roofing
We use quality roofing materials and certified installation standards to help protect your home and extend roof life.
Licensed & Insured
You're covered. Our team is fully licensed and insured for your peace of mind on every Lake Grove project.
Local Suffolk County Contractor
Serving Lake Grove and all of Suffolk County since 1990—fast response, local accountability, and work that holds up.
Transparent Recommendations
If you only need a repair, we'll tell you. If you need replacement, we'll show you why—no fluff, no games.
BBB A+ Rated
Our reputation is built on consistent results, clean job sites, and professional communication from start to finish.
Roofing Services for Lake Grove Homes
Residential roofing services delivered with proven process: inspect, explain, repair or replace, and protect your property.
Residential Roof Installation
New roof installation built for long-term protection and clean curb appeal—installed to spec, with quality materials and proper ventilation details.
- Shingle roof installation
- Material and color selection guidance
- Flashing and edge detail work
- Clean, organized job site
Residential Roof Repair & Inspection
Spot issues early and fix them right. We inspect, document what we find, and recommend the most practical solution.
- Leak troubleshooting
- Shingle and flashing repairs
- Roof inspection and assessment
- Free estimate with clear scope
Storm Damage Roof Repair
Wind and storm events can create hidden problems. We evaluate damage thoroughly and complete repairs that restore protection fast.
- Post-storm inspection
- Emergency repair availability
- Water intrusion prevention
- Documentation support if needed
Skylight Installation & Repair
Skylights should add light—not leaks. We install and repair skylights with proper sealing and flashing to keep water out.
- Skylight replacement
- Leak repair and reseal
- Flashing corrections
- Energy-focused recommendations
Attic Ventilation
Proper ventilation helps extend roof life and reduce moisture issues. We assess airflow and install the right venting solution.
- Ridge/soffit ventilation improvements
- Moisture and heat control
- Ventilation assessment during inspections
- Roof longevity-focused upgrades
Roofing Built for Long Island Weather
Lake Grove roofs deal with wind, rain, and seasonal temperature swings. If small defects are ignored, they turn into leaks, rot, and expensive interior damage.
Our approach is simple: inspect thoroughly, fix what's necessary, and install systems that are built to last with proper detailing and ventilation.
- Thorough inspections to catch hidden issues
- Quality materials installed to manufacturer standards
- Moisture-control focused ventilation planning
- Clean job sites and professional workmanship
Free Roof Inspections
Free Estimates
No Subcontractors
Local Suffolk County Team
Book Your Free Roof Inspection
If you're seeing stains, missing shingles, or leak signs—don't wait. Get a no-obligation inspection and a clear estimate from Tom Jannace Roofing, Inc.
Free inspection and honest findings
Clear scope and transparent estimate
Residential roofing specialists
Call now: (631) 751-4734