If you can afford them, seamless gutters are the better choice for most homes getting a new roof: they cost more than sectional gutters, but each straight run is one piece, so there are far fewer joints to leak. Modernize puts seamless gutters at $8 to $28 per linear foot installed and sectional ones at $3 to $20. Sectional gutters make sense when the budget is tight, when you want to put them up yourself, or when you want vinyl, which HomeAdvisor says comes only in sections. Whichever you choose, the material, the size and how the gutter meets the new roof edge matter as much as the joints.
What the difference is
- Sectional gutters come in pre-cut lengths that are joined along the run. Family Handyman's installation steps show each joint lapped, riveted and sealed with gutter sealant, which is also why sectional gutters are the ones a homeowner can buy at a home center and install.
- Seamless gutters are formed at your house. This Old House says they are custom-formed on site with a rolling machine, and Family Handyman describes installers who measure the house and form continuous lengths of aluminum to fit. That machine is why This Old House says seamless gutters are a job for a professional.
"Seamless" describes the straight runs, not every joint. A seamless run still needs an end cap at each end and an outlet for each downspout, and Family Handyman's steps rivet and seal both. Those few joints are the ones to check on any system.
What each costs, installed
The national cost guides agree that seamless costs more. They disagree on how much.
| Source | Sectional | Seamless |
|---|---|---|
| Modernize, updated September 23, 2026 | $3 – $20 per linear foot | $8 – $28 per linear foot |
| Fixr, seamless gutter guide, updated January 31, 2025 | $450 – $5,250 for 150 feet | $900 – $7,500 for 150 feet |
| Fixr, aluminum gutter guide, updated August 19, 2022 (aluminum only) | $6 – $11 per linear foot | $14 – $20 per linear foot |
| This Old House, updated August 18, 2026 | not given | $1,984 on average for 200 feet, about $9.92 per linear foot |
| HomeAdvisor, updated June 20, 2026 | $4 – $40 per linear foot | more than sectional; no separate figure |
Fixr's 150-foot totals work out to about $3 to $35 a foot for sectional and $6 to $50 for seamless; that division is our arithmetic. This Old House says labor is about $5 of each foot.
Fixr's aluminum guide also prices both at two sizes, for 150 feet installed:
| Size | Sectional | Seamless |
|---|---|---|
| 5-inch | $1,200 – $1,400 | $2,400 – $2,600 |
| 6-inch | $1,500 – $1,650 | $2,700 – $3,000 |
On those figures, seamless roughly doubles the price at 5 inches, and going from 5-inch to 6-inch adds a few hundred dollars on a 150-foot job either way. The Fixr aluminum guide is older than the others, so use it for the comparison, not the dollar amounts.
The rest of a gutter estimate, such as removing the old gutters and working two stories up, is covered in our guide to new gutters with a new roof.
Leaks at the seams
This is the real case for seamless. HomeAdvisor says the joints in sectional gutters are more likely to corrode or leak as the gutters age. Fixr says the seams in standard gutters can be a cause of leaks over time, and that seamless gutters have fewer points that can fail. InterNACHI, the home inspectors' association, notes in its training on roof drainage that corrosion often starts at seams.
This Old House compares the two directly: it gives seamless gutters a lifespan of 20 to 30 years and sectional gutters 10 to 15 years, and puts the higher leak risk of sectional gutters down to joints separating.
A sealed joint is not a defect. It is a maintenance point. On a sectional system, count the joints along each run in the estimate and plan to check them. On either system, check the end caps and downspout outlets when you clean the gutters, and reseal any that drip.
Materials compared
Prices are per linear foot, installed. The lifespans come from InterNACHI's life expectancy chart for home components.
| Material | HomeAdvisor | Fixr | Modernize | Lifespan (InterNACHI) |
|---|---|---|---|---|
| Vinyl | $3 – $7 | $5 – $10 | $5 – $10 | 25+ years |
| Aluminum | $3 – $15 | $7 – $13 | $6 – $12 | 20 – 40+ years |
| Galvanized steel | $5 – $20 | $7 – $12 (steel) | $9 – $18 (steel) | 20 years |
| Copper | $15 – $40 | $18 – $32 | $20 – $40+ | 50+ years (copper downspouts 100) |
| Zinc | $15 – $30 | $16 – $29 | not listed | not listed |
Notes on each, from the same sources:
- Aluminum sits in the middle on price, and it is the metal Family Handyman describes seamless installers forming on site. Fixr suggests a thickness of 0.027 or 0.032 inch, and says thinner aluminum costs less but bends and dents more easily. Ask which thickness your estimate includes.
- Vinyl is the cheapest. HomeAdvisor says it is prone to leaks, has limited durability in harsh climates, and comes only as a sectional system, although Fixr lists seamless vinyl at $6 to $11 a foot installed. InterNACHI's inspectors' training says vinyl gutters are fragile and may be found broken or disconnected.
- Galvanized steel costs a little more than aluminum in most of these ranges; HomeAdvisor and InterNACHI both give it about 20 years.
- Copper is the long-lived, high-cost option. HomeAdvisor puts it at 50 to 100 years, and InterNACHI notes it lasts a long time compared with steel and vinyl.
HomeAdvisor gives zinc 80 years or more. Fixr is more cautious about the cheaper materials, putting vinyl and aluminum at up to 20 years. Fixr and InterNACHI both tie these lifespans to proper maintenance, so cleaning and upkeep move a gutter toward the top or bottom of its range.
Sizes: 5-inch, 6-inch and half-round
InterNACHI says 4-, 5- and 6-inch gutters are the common sizes, and that a larger gutter carries more water, provided there are enough downspouts to drain it. This Old House calls the 5-inch K-style gutter, the flat-backed shape that mounts flat against the fascia, the standard starting point for many homes.
This Old House gives these drainage capacities, in square feet of roof:
| Gutter | Roof area it handles (This Old House) |
|---|---|
| 5-inch K-style | 5,520 square feet |
| 6-inch K-style | 7,960 square feet |
| 5-inch half-round | 2,500 square feet |
| 6-inch half-round | 3,840 square feet |
The page does not say what rainfall these figures assume, so read them as a comparison rather than a limit. On them, a 6-inch K-style gutter carries about 44% more than a 5-inch one, and a half-round gutter carries well under half as much as a K-style gutter of the same width; both are our arithmetic. HomeAdvisor says half-round gutters are easier to clean and hold less water, and Fixr says they usually cost a little more than K-style in the same material.
When a bigger gutter helps, according to This Old House:
- A steep roof, because water comes off it faster.
- Heavy rainfall, where storms bring a lot of water in a short time.
- Valleys that pour the water from two roof planes into one spot on the gutter.
- Long runs, 60 feet or more, without a second outlet.
This Old House adds that a 6-inch gutter is common on larger homes but also works on a small roof where water collects in one place. The right size depends on your roof's drainage area and your local rainfall; ask the installer how they sized it, and check your local code.
Downspouts
A bigger gutter does little if the downspouts cannot empty it. This Old House gives these rules of thumb:
- About one square inch of downspout opening for every 100 square feet of roof. A 2-by-3-inch downspout handles about 600 square feet, and a 3-by-4-inch one about 1,200. Round 3-inch and 4-inch downspouts handle about 706 and 1,255 square feet.
- One downspout for every 20 to 25 feet of gutter, typically, from its seamless gutter cost guide.
- At least two outlets on a run of 60 feet or more, with a slope of about 1/4 inch for every 10 feet toward each outlet.
InterNACHI says downspouts should carry water 4 to 6 feet away from the foundation.
Costs vary by how they are priced. Fixr says downspouts are usually included in a gutter price and cost about $480 for most installations when priced separately; by the foot, Fixr gives $7.43 to $13.51 and Modernize $5 to $40.
For the flashing that directs roof water into the gutter, see drip edge vs gutter apron.
Installing gutters with a roof replacement
A new roof changes the edge the gutters hang under, so it is the natural time to decide on them. Our guide to new gutters with a new roof covers when to keep the ones you have; the points that matter for seamless or sectional are these.
- Drip edge first. IKO, a shingle maker, says drip edge goes on the eaves before the underlayment, and that it is there to direct water into the gutter. If new gutters are going up, they should be hung after the drip edge is on, so the installer can set the gutter where that water lands. Our guide to what happens during a roof replacement explains where the drip edge comes in the order of work.
- Sound fascia. Gutters are fastened to the fascia board, so any rot behind them should be fixed before new gutters go up. Our soffit and fascia repair cost guide covers the signs and prices, and suggests asking for a price per foot in the roofing contract.
- Hangers and slope. Family Handyman's steps put hangers every two feet and slope each run about 1/4 inch every 10 feet toward the downspout. InterNACHI lists loose, poorly attached and badly sloped gutters among the common installation problems.
- One contract or two. If the roofer and the gutter installer are different companies, ask who is responsible for the joint between the drip edge and the gutter if it leaks.
Gutter guards, briefly
Guards cover the gutter to keep leaves out. Modernize puts them at $7 to $20 per linear foot installed, and Fixr at $1,200 to $2,000 for a house. If you want them, ask for them as a separate line so you can decide on them alone. Our guide to new gutters with a new roof compares guard types and their prices.
What to ask before you sign
- Is it seamless or sectional? If sectional, how many joints on each run, and how are they sealed?
- What material and thickness, what size, and K-style or half-round?
- How many downspouts, what size, and where will each one discharge?
- How was the size chosen: roof area, pitch, valleys and local rainfall?
- Is removal and disposal of the old gutters included?
- Will the drip edge be installed first, and who makes sure roof water lands in the gutter?
- What is the price per foot for any fascia found rotten?
- What do the warranties cover? HomeAdvisor notes that most new gutters carry a manufacturer's warranty on the material and a contractor's warranty on the work, and suggests asking whether leaks, rust and labor are covered.
Check the contractor as well as the estimate: our guide to what to check before you hire a contractor covers licenses, insurance and references, and questions to ask a roofer covers the rest of the roofing job. The roof cost calculator prices the roof itself.
Frequently asked questions
Are seamless gutters worth the extra cost?
For most homes that plan to keep them for years, the sources suggest so: fewer joints to leak, and This Old House gives them 20 to 30 years against 10 to 15 for sectional. Sectional gutters cost less to put up, and Fixr notes they are cheaper to repair.
Do seamless gutters ever leak?
Yes, at the joints they still have: end caps, downspout outlets and wherever a run is joined. They have far fewer of those than a sectional system, which is why they leak less often.
Can I install seamless gutters myself?
Not practically. This Old House says they need a rolling machine that costs thousands of dollars. Sectional gutters are the ones sold for do-it-yourself installation.
Should I get 6-inch gutters?
Consider them for a steep or large roof, heavy rainfall, valleys that pour into the gutter, or long runs. On This Old House's figures a 6-inch K-style gutter carries about 44% more water than a 5-inch one, and on Fixr's older aluminum figures it adds a few hundred dollars to a 150-foot job.
Can I get seamless vinyl gutters?
It depends on who you ask. HomeAdvisor says vinyl comes only as a sectional system; Fixr prices seamless vinyl at $6 to $11 a foot installed. Ask the installer what they offer.
How we got these numbers
HomeAnvil does not yet publish price data of its own. Every figure on this page comes from a published source, read on September 27, 2026. The cost figures come from companies that publish national cost guides from their own surveys and research; their ranges differ, so we show them side by side. Where we divided or compared figures, the page says it is our arithmetic.
- Modernize, gutter installation cost calculator, updated September 23, 2026: seamless and sectional prices, prices by material, downspouts and guards.
- Fixr, seamless gutters cost, updated January 31, 2025: seamed and seamless totals for 150 feet, seamless vinyl, seams and leaks, downspouts and guards.
- Fixr, aluminum gutters cost, updated August 19, 2022: seamed and seamless aluminum by the foot and by size, and aluminum thickness.
- Fixr, gutter installation cost, updated January 31, 2025: prices and lifespans by material, half-round pricing and downspouts by the foot.
- This Old House, seamless gutters cost, updated August 18, 2026: the seamless average, labor, lifespans and leak risk, on-site forming and downspouts per foot of gutter.
- This Old House, how to size gutters and downspouts, updated April 20, 2026: gutter capacities, when to go larger, downspout sizes, slope and outlets.
- HomeAdvisor, cost to replace gutters, updated June 20, 2026: prices by material and type, sectional joints, vinyl, copper and zinc lifespans, and warranties. HomeAdvisor says its figures come from a survey of its customers.
- Family Handyman, how to install gutters: how joints, outlets and end caps are sealed, hanger spacing and slope, and seamless gutters formed on site.
- InterNACHI, standard estimated life expectancy chart for homes: gutter lifespans by material.
- InterNACHI, inspecting gutters and downspouts: common gutter sizes and downspout discharge distance.
- InterNACHI, roof drainage systems, part 1: corrosion at seams, materials and installation problems.
- IKO, guide to drip edges for shingle roofs, August 15, 2023: drip edge order and its role in sending water to the gutter.
We will update this page when these sources publish new figures, and the date above will say when.
Related guides
Should you replace gutters with a new roof?Often, if they are old or sagging. New gutters cost about $3 to $45 a linear foot by material, and guards $6 to $45. Sizing, fascia, and when to keep yours.
How much does soffit and fascia repair cost?Soffit and fascia repair typically costs $1,050 to $3,300, or $6 to $20 a linear foot. Signs of rot and pests, costs by material, and doing it with a new roof.
How much does a roof replacement cost?A roof replacement typically costs $5,900 to $13,400, or $400 to $1,100 per square installed. How to measure your roof, what moves the price and how to compare estimates.
What happens during a roof replacement, step by step?An asphalt shingle roof usually goes on in one to three days. What happens before, during and after, from tear-off and deck repair to flashing and cleanup.
How do you compare roofing estimates?Compare roofing estimates line by line: squares, price per square, product lines, tear-off, decking, underlayment, flashing, permit, warranties and payment terms.
What questions should you ask a roofer before you sign?The roofing questions to ask before you sign: tear-off, decking, ice barrier, ventilation, permit, crew, cleanup, payment and warranty papers, plus red flags.