Roof Replacement & New Roof Installation Service Long Island, NY
A roof replacement is one of the larger purchases a Long Island homeowner makes, and most of what determines whether it was a good one happens after the old roof comes off. Bluemaster Roofing performs full tear-offs and new roof installations across Nassau County, Suffolk County and Queens with our own 21-person crew. Decking is priced per sheet before we start, the estimate is line by line, and the GAF system we install carries a 50-year non-prorated material warranty that transfers to the next owner.
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Replacement Services
Replacement And Installation Work We Handle In-House
From a full tear-off on a Nassau cape to a new roof on a ground-up build, every stage is handled by one certified crew. Nothing gets subcontracted out mid-job.
Full Tear-Off And Re-Roof
Complete removal of all existing layers down to the deck, sheathing inspected and repaired, then a new system installed from underlayment up.
New Construction Roofing
New builds, additions and dormers, coordinated with your general contractor so the roof goes on when the framing is ready rather than three weeks later.
Decking And Sheathing Replacement
Soft, rotted or delaminated plywood and original plank sheathing replaced, priced per sheet and agreed before the first one comes off.
Ventilation System Installation
Ridge vent, soffit intake correction, static and powered exhaust sized to the attic. Installed as part of the roof, not offered as an afterthought.
Flashing, Chimney And Skylight Work
All new step, counter and apron flashing, chimney crickets where the width calls for one, and skylight flashing kits or full skylight replacement during the tear-off.
Gutter Replacement And Storm Damage Rebuilds
Seamless aluminum gutters replaced with the roof while the staging is already up, carrying a 10-year workmanship warranty, plus full insurance-supported rebuilds after storm loss.
When You Need Us
Is It Time To Replace The Roof Or Not Yet?
A roof needs replacing when the field itself has failed rather than a component on it, when there are already two layers on the deck, or when the sheathing has softened. Age alone is not the test. Plenty of twenty-two-year-old Long Island roofs are sound, and plenty of fifteen-year-old ones are finished because they were never ventilated.
Where replacement is the right decision:
- The field is failing everywhere, not in one place.
- Two layers are already on the deck.
- The decking has gone soft.
- You are on your third or fourth repair in a few years.
- A pre-purchase or sale assessment came back with a short remaining life.
Materials We Use
What Goes Back On, And What Gets Decided During The Tear-Off
Two things are chosen before a replacement starts: the system and the warranty tier. Two things can only be established once the deck is exposed: how much sheathing needs replacing and what the ventilation path is actually doing. Any contractor who claims to know all four before the tear-off is guessing on two of them.
What actually happens at your house that day
Roof Replacement For Long Island Homes & Businesses
Residential Roofing
Capes, colonials, split levels, ranches and waterfront homes across Nassau, Suffolk and Queens. Full tear-offs, decking replacement, ventilation correction, new flashing throughout and seamless gutters replaced with the roof.
Commercial Roofing
Storefronts, co-ops, medical offices, restaurants and warehouses. Carlisle TPO and EPDM replacements, modified bitumen, tapered insulation and drainage corrections, phased by section and worked around your tenants and trading hours.
Other Roofing Services We Provide Across Long Island
Not every roof needs replacing. These are the services either side of a tear-off, all handled by the same in-house crew across Nassau, Suffolk and Queens.
Roofing Systems We Install On A Replacement
A replacement is the one moment you get to change what is on the house. Six systems, each suited to a different roof shape, exposure and budget, all installed and warrantied by us.
Our Process
How A Roof Replacement Runs, Start To Finish
Assessment And Measurement
We walk the roof, measure every plane, count layers and penetrations, check the attic and photograph everything. If the answer is that you do not need a replacement yet, that is where you hear it.
Written, Itemized Estimate
Line by line: system, accessories, ventilation, flashing, decking per sheet, disposal, permit and labor. Financing is available up to 100% of project cost, subject to credit approval, and the $500 replacement discount applies here.
System Installation
Leak barrier at eaves, valleys and penetrations, underlayment across the full deck, starter, drip edge, all new flashing, field, hip and ridge cap, and ventilation completed.
Cleanup, Walkthrough And Warranty
Magnet sweep across the property, debris hauled away, final walk with you, municipal inspection closed by us, and the manufacturer warranty registered before we finish.
Pricing
What Determines The Cost Of A Roof Replacement
Replacement is priced by the square, which is 100 square feet of roof surface. Everything below is why two houses with the same square count come back thousands apart.
Roof size and slope complexity.
Dormers, chimneys, plumbing vents, hips and valleys break a roof into small faces. More cuts means more flashing detail and more labor hours per square than a plain gable of the same area.
Layer count and disposal weight.
One layer strips and loads fast. Two layers roughly doubles the tear-off labor and the tonnage going into the dumpster, and disposal is weighed, not estimated.
Pitch, height and access.
Anything above roughly 8/12 needs roof jacks and staging. Three-story homes, tight side yards, no driveway for the dumpster and overhead wires each add hours before a single shingle moves.
Ventilation and framing corrections.
Opening a blocked intake path or adding ridge exhaust is usually a modest line item, and it protects everything above it.
Why Choose Us
What You Get From A Bluemaster Roofing Replacement
The parts of a replacement that determine whether it lasts are the parts you will never see once the last shingle is down. These are the commitments we make about them.
The estimate is the invoice.
Decking is priced per sheet before we start and photographed as we replace it. No mid-job change orders, no allowances that quietly expand once the roof is open.
One in-house crew, all 21 of them ours.
Tear-off, deck repair, flashing, install and cleanup by people who work for us. A replacement is where subcontracting hurts most, because nobody who was there in the morning is there at the end.
We register the warranty ourselves.
GAF coverage rests on the system being installed to specification, which is what the GAF Certified Roofer designation exists to verify. We register it before we leave rather than handing you a card.
Pre & Post Inspection
Deck, flashing, attic and every replaced sheet, kept whether or not the job ever happens. Take them to the other two contractors and compare like for like.
Who We Serve
Who We Handle Roof Replacements For
A replacement is disruptive in different ways depending on who is underneath it. Scheduling, notice, access and documentation all change with the property type.
- Homeowners replacing an aging roof. Capes, colonials, split levels, ranches and waterfront homes across Nassau, Suffolk and Queens, from single-layer re-roofs to full two-layer tear-offs with decking work.
- Home buyers and sellers under contract. Replacements completed to a closing deadline, with documentation and warranty registration in the buyer's or seller's name as the contract requires.
- Landlords and property managers. Tenanted single-family and multi-family properties, scheduled with notice, with per-address documentation and invoicing suited to portfolio records.
- Retail and restaurant operators. Storefront and low-slope replacements phased around trading hours so the business keeps running through the work.
- Warehouse and light industrial facilities. Large low-slope membrane replacements, phased by section, with rooftop units and curbs re-flashed as part of the scope.
FAQ's
Roof Replacement Questions Long Island Homeowners Ask
The same questions come up on almost every replacement estimate: how long it takes, whether you can go over the old roof, and why quotes differ so much. Direct answers below.
How long does a roof replacement take on Long Island?
One to two days on site for most single-layer homes, two to three for a two-layer tear-off or a steep, cut-up roof. Larger colonials and multi-section commercial roofs run longer. Weather moves the date rather than the duration, and we will not strip a deck we cannot close the same day.
Can you put a new roof over the existing one instead of tearing off?
Sometimes, over one existing layer, on a deck we have confirmed is sound. It costs less, but you never see the sheathing, you cannot install a leak barrier at the eaves, and the trapped heat shortens the new roof’s life. Once two layers are on, tear-off is the only option. We quote both ways so you see the gap.
Do I need a permit to replace my roof In Long Island?
Usually yes for a full tear-off. In Nassau and Suffolk it comes from your town, village or city, each with its own requirements, and Nassau alone contains two cities, three towns and 64 incorporated villages. In Queens it goes through the NYC Department of Buildings. We identify the authority, file it and close the inspection as part of the job.
Do I have to move out or be home during the replacement?
No to both. It is loud, there will be vibration through the ceilings, and you will want pets and anything fragile away from the work area. You do not need to be present, though we do need driveway and side yard access for the dumpster and staging.
Is a 50-year warranty really 50 years?
On GAF shingle systems the material coverage is 50 years, non-prorated, and it transfers to the next owner, which matters at resale. It is conditional on the system being installed to specification, including the required accessories and correct ventilation, which is exactly why the accessory lines appear on the estimate. We register it before we leave the site.
Get A Real Number On Your Roof Replacement
Free assessment, photographs of everything we find, an itemized quote with decking priced per sheet, and a 50-year transferable warranty on GAF shingle systems. Financing available up to 100% of project cost, subject to credit approval, plus $500 off a full replacement and our military and government employee discounts. Bluemaster Roofing serves Nassau County, Suffolk County and Queens from 141 Main Street, East Rockaway, NY.