Seamless Gutters Service Long Island, NY Formed On Site To Your House
A sectional gutter has a joint every ten feet, and every one of those joints is a future leak sitting over your fascia. Seamless gutters are rolled on site from a continuous coil, so a forty-foot run is one piece of aluminum with no seam along its length.
Bluemaster Roofing forms and installs seamless aluminum gutters across Nassau County, Suffolk County and Queens. We size them to the roof area above them rather than fitting five inch because that is what is on the truck, and the workmanship carries a 10-year warranty. Free estimates, written and itemized.
Request A Free Gutter Estimate
No fee, no obligation. We usually reply the same business day.



The Gutter Work We Handle Across Long Island
From a sagging section through to a full replacement with the roof, handled in-house by the same crew.
Gutter Inspection
We check the pitch with a level, look at the hangers, test whether the downspouts actually flow, and examine the fascia behind the gutter for rot. Photographs of every finding. Free, and you keep the file whether or not you hire us.
Seamless Gutter Installation
Aluminum rolled on site to the exact length of your run, hung to a working pitch, with hangers spaced for the load Long Island snow and ice actually puts on them. Downspouts sized and placed to move water away from the foundation.
Gutter Repair And Re-Pitching
Sagging sections refixed, pulled hangers replaced, loose seams at the corners and outlets resealed, and pitch corrected where a run has settled. Frequently a much smaller job than the one people call about.
Downspout And Drainage Work
Additional downspouts where a run is carrying more water than one outlet can take, extensions to move discharge away from the foundation, and underground tie-ins where the grade works against you.
Gutter Guards
Installed where they genuinely help and honestly assessed where they do not. Under heavy pine, fine needles pass most systems and then sit on top where nobody sees them.
Fascia And Soffit Repair
Rotted fascia board replaced before new gutters go up, because hanging new aluminum on soft wood means doing the job twice. Soffit repaired where water has been getting behind.
Diagnose It First
Why do gutters overflow when they are not blocked?
Most overflowing gutters are not clogged. They are undersized, short on downspouts, pitched wrong, or missing the metal that directs water into them in the first place. Cleaning a gutter that overflows because it cannot hold the volume will not change anything, which is why the problem comes back every storm.
Start with one question
Does it overflow in light rain too, or only when it is heavy?
Only in heavy rain
↓ Capacity problem
Even in light rain
↓ Detail problem
Capacity problems
The gutter is undersized
A 5-inch gutter on a large or steep roof simply cannot carry the volume. More water arrives at the edge than the channel can move.
The tell
Not enough downspouts
The tell
The roof pitch is steep
The tell
Detail problems
Missing gutter apron
Roof detail
The tell
Wrong pitch
The tell
Genuinely blocked
The tell
If it is fine in light rain, cleaning will not fix it
This is the single most useful thing on this page. A gutter that handles a drizzle and fails in a downpour is not dirty. It is too small, or it has too few downspouts. Paying to clean it every autumn treats a symptom that was never the problem, and the same thing happens after the next real storm.
The Honest Version
Are gutter guards worth it?
Some are, on some houses. No guard is maintenance free, none of them fix ice dams, and on an undersized gutter a guard makes overflowing worse rather than better. What matters is which type, on which roof, and whether the gutter underneath was sized correctly in the first place.
Micro Mesh
Fine stainless screen over the opening
Good at
- Keeping out leaves, twigs and roof debris
- Sitting flat, so it stays out of sight
Will not do
- Stay clear under pine. Needles and shingle granules sit on the mesh
Verdict
The one we fit most. Best all-round performance under oak and maple, which covers most of Long Island.
Reverse Curve
Good at
- Shedding large debris completely
- Lasting. These are solid metal, not screen
Will not do
- Handle a downpour. Water can overshoot the nose entirely
- Stay hidden. It changes the look of the roof edge
Verdict
Brush Insert
Good at
- Being cheap and quick to fit
- Stopping the big stuff reaching the downspout
Will not do
- Save you cleaning. Debris collects in the bristles instead of the gutter
Verdict
Moves the problem rather than solving it. You still go up the ladder, and now you pull the brush out first.
Foam Insert
Good at
- Being the cheapest option on the shelf
Will not do
- Last. It breaks down under UV within a few years
- Stay dry. It holds moisture against the gutter and seeds germinate in it
Verdict
Three things nobody selling guards will tell you
1
No guard is maintenance free
2
Guards do not fix ice dams
3
On an undersized gutter they make it worse
If your problem is ice, the fix is above the gutter
Ice at the eave every winter is not a gutter fault. It is warm air escaping into the attic, melting snow on the roof, and that meltwater refreezing when it reaches the cold overhang. The gutter is where you see it, not where it starts.
Fixing that means intake and exhaust ventilation and proper ice and water shield coverage at the eaves. If someone is selling you gutter guards to solve an ice problem, they are selling you the wrong thing.
How A Gutter Job Runs
Inspection And Measurement
We check the pitch, the hangers and the downspout flow, look at the fascia behind the gutter, and measure every run. Then we work out the roof area feeding each one, because that decides the size and the downspout count rather than guesswork.
Written Estimate
Linear feet, profile and gauge, hanger spacing, downspout count and placement, plus any fascia repair priced in advance. Financing available up to 100% of project cost, subject to credit approval.
Forming And Installation
Aluminum rolled on site to the exact length of each run, fascia repaired where needed, then gutters hung to a working pitch on hidden hangers and downspouts fitted and secured.
Water Test, Walkthrough And Warranty
We run water through every run before we leave to confirm it drains where it should. Debris cleared, final walk with you, and the 10-year workmanship warranty handed over in writing.
What Determines The Cost Of Seamless Gutters
Linear footage sets the base. What moves it is the profile and gauge, how many downspouts the roof actually needs, how high and how accessible the runs are, and whether the fascia behind the old gutters is sound.
Linear feet and profile.
Six inch costs more per foot than five inch and carries considerably more water. On most Long Island houses five inch is adequate, and we will say so rather than upselling by default.
Downspout count and placement.
Each downspout is material plus labor, and more of them is frequently the correct answer on a long run. Placement also matters for where the water ends up.
Height and access.
Second and third story runs, steep roofs, decks below, overhead wires and mature plantings all add time.
Corners and complexity
Inside and outside corners are formed and sealed individually. A house with eight corners takes considerably longer than a straightforward ranch with the same linear footage.
What You Get On A Gutter Job
Gutters are a small job where a lot gets skipped, because nobody climbs up afterward to check.
We size the gutter to the roof, not to the truck
How much roof feeds each run decides the profile and the downspout count. A five inch gutter with one outlet on a forty-foot run off a steep roof will overflow no matter how well it was formed.The same certified team handles inspection, tear-off, and install, so no job gets passed between subcontractors.
Fascia gets fixed before aluminum goes up
Hanging new gutters on soft wood means doing the job again in three years. We check behind the old gutter and price the repair in advance.
Every run is water-tested before we leave
We put water through it and watch where it goes. It takes ten minutes and it is the difference between a gutter that works and one that looked fine on installation day.
10-year workmanship warranty, in writing
Covering seams, pitch, hangers and fastening. If a run sags or a corner leaks inside that window, we come back.
Which Long Island Homes We Do Gutter Work On
Gutters matter more on some houses than others, and a great deal depends on what is around and above them.
- Homes under heavy tree cover through Brookhaven, Smithtown, Islip and the North Shore, where the gutters fill twice a year regardless of what is installed
- Ranches and capes in Nassau and western Suffolk, where wide eaves mean long runs and the downspout count decides whether they work
- Steep colonials in Garden City, Rockville Centre, Smithtown and Setauket, where water comes off fast and six inch is frequently the right call
- Homes with foundation or basement water issues, where downspout discharge is often a bigger factor than anyone realizes
- Storefronts and small commercial buildings, where water coming off the roof lands where customers walk
The Honest Version
Are gutter guards worth it?
Some are, on some houses. No guard is maintenance free, none of them fix ice dams, and on an undersized gutter a guard makes overflowing worse rather than better. What matters is which type, on which roof, and whether the gutter underneath was sized correctly in the first place.
Roof field
Roof edge
Gutter line
Fascia & soffit
Wall
A roofing contractor
Stops at the shingle edge
A gutter company
Starts at the hanger, ends at the downspout
A siding company
Starts below the soffit
Bluemaster Roofing
One scope, no handover points
- Covered by that trade
- Unclaimed strip
- Covered by us
Gap one · roof edge to gutter
The apron and the drip edge
What it costs you
Gap two · gutter to wall
Fascia and soffit condition
Both sit behind the gutter and above the siding. Neither specialist prices them, because neither is standing there when the gutter comes down. The siding crew sees the outside of the soffit and nothing else.
What it costs you
Both gaps · when it leaks
Nobody's warranty reaches it
Each warranty covers that company’s own scope. A fault that begins in an unclaimed strip is inside nobody’s coverage, so three warranties can be live at once and none of them apply.
What it costs you
There is a right order, and it only works in one direction
01
Gutters down
Before anything else. The fascia becomes visible for the first time.
02
Fascia repaired
03
Apron fitted
04
Roof installed
05
Gutters hung
06
Siding closed up
If your problem is ice, the fix is above the gutter
Ice at the eave every winter is not a gutter fault. It is warm air escaping into the attic, melting snow on the roof, and that meltwater refreezing when it reaches the cold overhang. The gutter is where you see it, not where it starts.
Fixing that means intake and exhaust ventilation and proper ice and water shield coverage at the eaves. If someone is selling you gutter guards to solve an ice problem, they are selling you the wrong thing.
Gutter Questions Long Island Homeowners Ask
Sizing, guards, ice and timing with the roof. These five come up on nearly every gutter estimate.
Are gutter guards worth it on Long Island?
It depends entirely on what is above the house. Under mature oak, guards reduce cleaning frequency meaningfully. Under pine they help far less, because fine needles pass most systems and then sit on top of the guard where nobody thinks to look. Guards reduce maintenance, they do not eliminate it, and any contractor promising you will never clean gutters again is overselling. We will tell you honestly whether yours is a house where they pay off.
Do I need five inch or six inch gutters?
Five inch K-style handles most Long Island houses. Six inch is worth the difference on steep roofs, on long runs, and where a large roof area feeds into one gutter. The clearest sign you need it is gutters that overflow in heavy rain even when they are clean, which means either the gutter is undersized or there are not enough downspouts on the run.
Will new gutters stop ice dams?
No, and it is worth knowing before you spend money on it. Ice dams form because warm air escaping into the attic melts snow on the roof, and that meltwater refreezes at the cold eave. Gutters collect the ice rather than cause it. New gutters will not change it. The lasting fix is attic insulation and soffit intake ventilation, which is a different trade than ours.
Can gutters be installed in winter on Long Island?
Yes. Aluminum is formed on site and the work does not depend on temperature the way shingle sealant does. Lead times are frequently shorter in winter than they are in autumn, when everyone calls at once after the leaves come down. Ice on the roof and the ladders is the limiting factor rather than the cold itself.
Should I replace my gutters when I replace the roof?
If they are more than about fifteen years old, yes, and the saving is real rather than a sales line. The gutters come off during the tear-off anyway, the staging is already up, and the drip edge and the back of the gutter get detailed properly as one system rather than one crew working around another’s finished work. Doing them a year apart means paying for access twice.
Other Roofing Services We Provide Across Long Island
If the gutters have gone, the roof above them is frequently close behind, because both usually went on the same year. We install and warranty all six.
Roofing Systems We Maintain And Install
If the gutters have gone, the roof above them is frequently close behind, because both usually went on the same year. We install and warranty all six.
Get Your Gutters Sized To The Roof Above Them
Free inspection, photographs of every finding, an itemized written estimate, and a 10-year workmanship warranty on the installation. Financing available up to 100% of project cost, subject to credit approval. Bluemaster Roofing serves Nassau County, Suffolk County and Queens. Ask about our military and government employee discounts.