
Exterior · The5thwall
Gutter Installation & Repair NJ
Seamless Gutters, Leak Repairs & Soffit/Fascia Work Across Mercer County
Overview
Seamless aluminum gutter installation, leaking-gutter repair, downspout extensions, gutter-guard upgrades, and full fascia and soffit tie-in for Central NJ homes.
We measure, fabricate, and hang 5-inch and 6-inch K-style aluminum on-site so every run is one continuous piece — no joints to fail.
Same-week scheduling on most Mercer County repair calls.
Free roof-edge inspection with every install quote.
Registered with NJ Division of Consumer Affairs, $2M general liability insurance, EPA Lead-Safe certified.
Scope of work
Every gutters project covers the full scope — start to finish.
One contractor pulls every trade under one roof — design, demolition, rough-in, finish, cleanup. You deal with the owners. No coordinating subs, no finger-pointing, no surprise line items.
Included
- On-site 5-inch and 6-inch seamless aluminum K-style gutter fabrication
- Half-round and copper gutter installation for historic Princeton, Lawrenceville, and Pennington homes
- Leaking-joint, sagging-run, and detached-gutter repair (same-week scheduling)
- Hidden-hanger reinforcement with stainless screws — no spike-and-ferrule
- Downspout replacement and downspout extension to grade or buried drain tile
- Gutter guards: micro-mesh, reverse-curve, and screen options matched to NJ leaf load
- Fascia and soffit repair, water-damaged board replacement, drip-edge correction
- Roof-water management: splash blocks, French drain tie-in, foundation protection
- Storm and ice-dam damage repair with insurance-claim documentation support
- Full debris removal, magnetic sweep, and gutter-flush test on every job
Investment
What a gutters project costs.
Three investment tiers, based on scope and finish level. Every estimate is custom — these are the ranges most clients land within.

Gutter Repair
Targeted fixes for leaks, sags, separations, and overflow on existing gutters
$200 - $850
What's included
- Leak diagnosis and joint resealing
- Sagging-run re-pitch and hidden-hanger reinforcement
- Detached or pulled-away gutter re-mounting to sound fascia
- Downspout reattachment, elbow replacement, extension to grade
- Single-run replacement (up to 20 linear feet)
- Gutter flush test and water-flow verification on completion
- Same-week scheduling on most Mercer County calls

Seamless Install
Full tear-off and replacement of an average 180 LF Mercer County home
$1,800 - $4,800
What's included
- On-site seamless 5-inch or 6-inch aluminum K-style fabrication
- Hidden-hanger system with stainless screws into solid fascia
- New 3-inch by 4-inch downspouts sized for NJ rainfall
- Custom miters cut on-site — no leak-prone factory corners
- Color-matched aluminum (20+ baked-enamel finishes)
- Old gutter tear-off, haul-away, and magnetic nail sweep
- Free fascia inspection and drip-edge correction included
- Limited lifetime aluminum warranty + workmanship warranty

Install + Gutter Guards
Seamless install paired with micro-mesh or reverse-curve guards for clog-free protection
$4,500 - $9,500
What's included
- Full seamless gutter install (5-inch or 6-inch)
- Stainless micro-mesh guard system (0.018-inch mesh keeps pine needles out)
- Reverse-curve option for heavily wooded Princeton and Hopewell properties
- Larger 3x4 downspouts to handle storm volume with guards
- Fascia replacement included if rot found during install
- Manufacturer warranty on guards (typically 10-25 years)
- Annual guard inspection visit in year one
- Insurance claim support if storm damage led to install
The process
Five steps, start to handover.
Consultation
A site visit, measurements, and an honest conversation about scope. No pressure, no obligation.
Design & estimate
We return with a detailed plan, material selections, and an itemized estimate. You see exactly what the project is — and exactly what it costs.
Contract & permits
One contract, line-itemed. We pull every permit required by NJ code. Your project starts with compliance handled.
Build
Our crew works on site, one point of contact throughout. Daily cleanup, weekly progress reports, no crew rotation.
Handover
A walkthrough of every detail together. Nothing closes until you're satisfied. Workmanship warranty begins the day you sign off.
Questions answered
Gutters — frequently asked.
Full seamless aluminum gutter installation on a typical Mercer County home (roughly 150-200 linear feet) runs about $1,800-$4,800 installed. Material grade, gutter size (5-inch vs 6-inch), corner count, downspout count, and second-story access all move the number. We include fascia inspection, custom on-site fabrication, hidden-hanger system, and old gutter haul-away in every estimate. Pricing is itemized — no vague lump sums.
Most gutter repairs in Mercer County run $200-$850 depending on the issue. Resealing a leaking joint, re-securing a sagging run, replacing pulled hidden hangers, or swapping a single downspout typically falls in the $200-$450 range. Replacing a 10-20 foot damaged section, rebuilding a miter, or repairing rotted fascia behind a gutter pushes toward the upper end. We provide a written quote before any work starts.
Sudden, accidental damage from a covered event — a fallen tree limb in a storm, hail, or wind tearing gutters off the fascia — is usually covered under NJ homeowners policies after your deductible. Gradual wear, rust, clogging, and ice-dam damage from poor maintenance are typically excluded. We can document storm damage with photos, written scope of work, and material specs to support your claim. If the damage is below your deductible we will tell you honestly so you do not waste a claim.
Yes. If only one run is damaged and the rest of your gutter system is sound, we can fabricate and install a single seamless replacement section on-site, matching the existing color and profile. We do recommend a full system inspection during the visit — sagging or leaking on one run often points to fascia rot, hanger fatigue, or pitch problems on adjacent runs. Replacing one section costs $300-$900 depending on length and access.
Most Central NJ ranches, capes, and modest colonials are well served by 5-inch K-style aluminum. Larger colonials, homes with steeper roof pitches, homes under heavy tree cover, or properties that have seen overflow during summer downpours benefit from 6-inch with 3x4 downspouts — they carry roughly 40% more water. We size the system to your actual roof square footage and pitch during the on-site estimate, not by guessing from the curb.
Properly installed seamless aluminum gutters with hidden-hanger systems typically last 20-30 years in NJ's freeze-thaw climate. Copper lasts 50+ years. Galvanized steel lasts 15-25 years but rusts at seams and downspout connections. Lifespan drops sharply on any system if downspouts are undersized, gutters are pitched wrong, fascia rots behind the gutter, or guards are skipped on heavily wooded lots. We pitch every run at the manufacturer-spec slope (about 1/4 inch per 10 feet toward the downspout).
Gutter guards make sense if your home is under oak, maple, pine, or sweetgum canopy — which covers most of Princeton, Hopewell, and Lawrenceville. They are optional on open-lot ranches in Hamilton or Robbinsville. Micro-mesh stainless guards handle pine needles and shingle grit best; reverse-curve handles heavy oak leaf load best; basic screens are a budget option but require more frequent cleaning. We will tell you honestly whether guards are worth the spend on your specific property.
Most Mercer County leaking-gutter and overflow calls get a same-week visit. True emergencies — sheet water pouring into a window well, ice falling into a doorway, or a fully detached gutter — usually get a next-day or 48-hour response depending on weather. Call (609) 954-3659 and describe what you are seeing; if it is a true emergency we will move you up the schedule. You can also send photos via the contact form.
Service area
Gutter Installation & Repair NJ across Central New Jersey.
Based in Lawrence. Serving Mercer County and surrounding townships.
- Princeton
- Hamilton
- Trenton
- Lawrence
- Lawrenceville
- West Windsor
- Ewing
- Pennington
- Robbinsville
- Hopewell
- Bridgewater
- Somerville
- Franklin
- Hillsborough
- Montgomery
- Bound Brook
- Raritan
- Manville
- Watchung
- Warren
- Bernardsville
- Far Hills
- New Brunswick
- Edison
- Piscataway
- South Brunswick
- North Brunswick
- East Brunswick
- Old Bridge
- Woodbridge
- Cranbury
- Plainsboro
- Monroe
- Metuchen
- Highland Park
- Milltown
- South Plainfield
- Flemington
- Clinton
- Readington
- Raritan Township
- Lambertville
- Tewksbury
- Lebanon
- Hampton
- Newtown
- Yardley
- Doylestown
- New Hope
- Morrisville
- Langhorne
- Levittown
- Warminster

Next step
Begin your gutters consultation.
A site visit, a frank conversation about scope and budget, and a detailed estimate — at no cost to you.
NJ Gutter Cost Reality (2026)
National gutter installation cost guides quote $5-$32 per linear foot, which smooths over what Mercer County homeowners actually pay. Central NJ labor rates, two-story access, fascia condition, and corner counts all change the real number. Here is what gutter installation and repair actually cost across Lawrence, Princeton, Hamilton, Trenton, Ewing, and the surrounding Mercer and Middlesex submarkets in 2026.
How much does it cost to install gutters in NJ?
Seamless 5-inch aluminum K-style installed in Mercer County runs about $10-$16 per linear foot. 6-inch runs $13-$22 per linear foot. Copper runs $25-$40 per linear foot. National range references Angi 2025 gutter installation data. Pricing includes on-site fabrication, hidden-hanger system, downspouts, miters, old gutter tear-off, and haul-away.
What is the total cost for a typical Mercer County home?
A 2,000 to 3,000 square-foot Central NJ colonial typically needs 150-200 linear feet of gutters with 4-6 downspouts. 5-inch seamless aluminum total: $1,800-$3,400. 6-inch seamless aluminum: $2,400-$4,800. Premium install with stainless micro-mesh guards: $4,500-$9,500. Add $300-$1,200 if rotted fascia needs replacement during the install.
What does gutter repair cost in Central NJ?
Resealing a leaking joint: $150-$300. Re-pitching a sagging run with new hidden hangers: $200-$450. Replacing a 10-20 foot damaged section with on-site seamless fabrication: $300-$900. Downspout replacement or extension to grade: $125-$350. Full miter rebuild: $300-$600. Most repairs are completed in a single visit, with same-week scheduling on most Mercer County calls.
How long do seamless aluminum gutters last in NJ?
Properly installed seamless aluminum lasts 20-30 years in NJ's freeze-thaw climate. Copper lasts 50+ years. Galvanized steel lasts 15-25 years but rusts at seams. Lifespan drops sharply if downspouts are undersized, gutters are pitched wrong (manufacturer spec is about 1/4 inch of drop per 10 feet toward the downspout), fascia rots behind the gutter, or guards are skipped on heavily wooded lots.
Sources: Angi 2025 NJ gutter installation data, manufacturer hidden-hanger spec sheets (GutterStuff, Spectra Metals), and project records from completed Central NJ installs across Lawrence, Princeton, Hopewell, and Hamilton.
Three Gutter Systems for Mercer County Homes
The right gutter system depends on roof square footage, tree canopy, architectural style, and budget. Here are the three systems we install most across Lawrence, Princeton, Hamilton, Ewing, Hopewell, Pennington, and the surrounding submarkets.
5-inch Seamless Aluminum
$10 – $16 / LF
The standard for ranches, capes, split-levels, and modest colonials across Hamilton, Lawrence, Robbinsville, and Trenton. Handles most Central NJ rainfall when downspouts are correctly sized and spaced.
- On-site seamless fabrication
- 20-30 year aluminum lifespan
- 20+ baked-enamel colors
- Hidden-hanger system
6-inch Seamless Aluminum
$13 – $22 / LF
The right size for larger Princeton, West Windsor, and Pennington colonials, steeper roof pitches, and homes that have overflowed during summer downpours. Carries roughly 40% more water than 5-inch with 3-inch by 4-inch downspouts.
- 40% more capacity vs 5-inch
- 3x4 downspouts (storm-ready)
- Best paired with micro-mesh guards
- Limited lifetime aluminum warranty
Half-Round / Copper
$25 – $40 / LF
The right choice for historic Princeton, Lawrenceville, and Pennington homes where architectural accuracy matters. Copper develops a green patina over 7-15 years. Half-round profile complements pre-1950 architecture.
- 50+ year copper lifespan
- Period-accurate profile
- Solder-joined seams
- Increases home value on historic homes
How a NJ Gutter Repair Visit Actually Goes
Most contractors quote vague timelines on gutter calls. Here is the real Central NJ playbook on a typical leaking, sagging, or overflowing gutter call — from your first phone call to a verified water-flow test on completion.
- 1
Call or text — describe what you are seeing
Call (609) 954-3659 or send photos through the contact form. We triage based on severity. Sheet water into a window well, ice falling into a doorway, or a fully detached run jumps the schedule. Most non-emergency Mercer County calls get a same-week visit.
- 2
On-site diagnosis — beyond the visible leak
Tony or Stefanos inspects the full run, not just the leak. We check pitch with a level, look for hanger pull-out, inspect fascia for rot, check drip-edge alignment, and run water through the system to find every problem. Hidden issues that would have caused a callback in 6 months get caught now.
- 3
Written quote before any work starts
Itemized written quote covering exactly what we are going to do, what materials, and what it costs. If the fix is below your insurance deductible we tell you so you do not waste a claim. If a full replacement is cheaper than 3 spot repairs, we tell you that too.
- 4
Repair work — typically same-day completion
Most repairs finish in a single visit. Resealing joints, re-pitching sagging runs, replacing hidden hangers, swapping downspouts, and rebuilding miters are all same-day work. Section replacements involving on-site seamless fabrication still finish in one visit.
- 5
Water-flow test before we leave
We run a garden hose through every repaired run and verify water moves cleanly to the downspout and away from the foundation. You walk the system with us and watch it work. No invoice is sent until you have seen the fix in action.
Gutter Guards — When They Pay Off in Central NJ
Gutter guards range from $4 builder-grade screens to $15+ per linear foot stainless micro-mesh systems. They are absolutely worth it on some Mercer County homes and a waste of money on others. Here is the honest breakdown.
Stainless micro-mesh (0.018-inch mesh) — best for most NJ homes
The mesh is fine enough to keep pine needles, shingle grit, and small seed pods out while letting heavy rainfall through. Best for properties with mixed deciduous and pine canopy — most of Princeton, Hopewell, and Lawrenceville. Cost: $8-$15 per linear foot installed over existing or new gutters. Typical 10-25 year manufacturer warranty.
Reverse-curve — best for heavy oak leaf load
Water clings to the curve and flows into the gutter; leaves slide off. Handles big oak and maple leaf load that overwhelms micro-mesh in fall. Best for heavily wooded lots in Hopewell Township, Princeton, and parts of Lawrence. Cost: $10-$18 per linear foot installed. Manufacturer warranties commonly 20+ years.
Foam or builder screens — budget options with real limits
Foam inserts and basic snap-in screens cost $2-$5 per linear foot and keep large debris out, but pine needles, seed pods, and shingle grit clog them within 1-3 seasons. Reasonable for open-lot ranches in Hamilton or Robbinsville with no overhanging trees. Not worth the labor on heavily wooded properties.
Honest disclosure: not every home needs guards
Open-lot ranches with no trees within 30 feet do not need guards. Annual cleaning at $150-$250 is cheaper than the install. We will tell you if your property is in this category — even if it costs us the upsell. The right call is the one that protects your home for the lowest lifetime cost, not the one that pads our invoice.
Fascia, Soffit, and Drip-Edge — The Roof-Water Protection System
Gutters are one piece of a four-piece roof-water protection system. If the other three pieces — fascia, soffit, and drip-edge — are not right, even brand-new gutters will leak, sag, or pull off the house. Here is what we check on every install and most repair calls.
Fascia — what the gutter screws into
Fascia is the 1x6 or 1x8 board behind your gutter. If it is soft, rotted, or split, hidden hangers will not hold and the gutter will pull off in the first ice storm. We probe fascia for rot before any new install and replace damaged sections in pine, cedar, or PVC composite. Typical replacement: $8-$20 per linear foot.
Soffit — the underside of the eave
Soffit ventilates the attic. Stained, sagging, or moldy soffit usually points to gutter overflow or ice-dam water that has been running behind the gutter for years. We repair vented aluminum, vinyl, and wood soffit, and tie repairs into the gutter install so the root cause is fixed at the same time.
Drip-edge — the metal flashing at the roof edge
Drip-edge directs water off the shingle into the gutter. Missing, short, or bent drip-edge lets water run behind the gutter, rotting fascia and soffit from the inside. NJ code requires drip-edge on every new roof. We correct or add drip-edge during gutter install whenever the existing flashing is wrong.
Downspout discharge — where the water actually goes
A perfect gutter system that dumps water at the foundation still floods basements. We extend downspouts 4-6 feet from the foundation with splash blocks, buried PVC drain tile, or pop-up emitters. On homes with chronic basement water, we tie discharge into existing French drains where appropriate.
Why Mercer County Homeowners Choose The 5th Wall
Central NJ has plenty of gutter options. Big-box installers, single-truck specialists, and roofing companies that throw in gutters as an upsell all compete here. The honest reason homeowners hire us:
Father-and-son crew on every job — no subs
Tony Karpontinis (OSHA-30, 20+ years on the tools) and Stefanos (OSHA-10) measure, fabricate, and hang every run personally. No commissioned salespeople. No subcontractor crews you have never met. The two people who quote the job are the two people on the ladder.
Full general contractor — not gutter-only
If we open up the system and find rotted fascia, damaged soffit, or roof-edge problems, we fix them the same week — no waiting on a separate carpenter. Registered with NJ Division of Consumer Affairs, $2M general liability insurance, EPA Lead-Safe certified for pre-1978 homes.
Same-week scheduling on most repair calls
Most Mercer County leaking, sagging, or overflowing gutter calls get a same-week visit. True emergencies get next-day or 48-hour response depending on weather. We do not make you wait three weeks for a $300 fix.
Clean job sites, magnetic sweep on every install
Every gutter install ends with a magnetic nail sweep across your driveway, walkways, and lawn. Old gutters are hauled away the same day. Mercer County neighbors hire us based on how the last job site looked.
Mercer County NJ Service Area
We install and repair gutters across the full Mercer County footprint and the surrounding Middlesex and Somerset border towns. If you are within roughly 25 miles of Lawrence, we can help — including same-week repair coverage.
Don't see your town listed? Call (609) 954-3659 — most surrounding Mercer, Middlesex, Somerset, and Bucks County PA towns are still within our service radius.
Related Resources for NJ Homeowners
More guides and services from The 5th Wall on the roof-edge system.
Roofing Services
Full roof tear-off and replacement in Mercer County
Siding Services
Often paired with gutters for full exterior protection
Drywall & Framing
For interior repair after gutter-overflow water damage
Lawrence NJ Service Area
Our home base — full Mercer County coverage
Princeton NJ
Historic copper and half-round gutter installs
Free Gutter Estimate
Get an itemized written quote, no high-pressure sales

