--- title: "Gutter Installation" description: "Seamless aluminum, steel, and copper gutters sized, pitched, and hung to carry real rainfall away from your roof and foundation." canonical: "https://cmac-new-concept.vercel.app/services/gutters/installation" last-modified: "2026-08-24" --- # Gutter Installation > Seamless aluminum, steel, and copper gutters sized, pitched, and hung to carry real rainfall away from your roof and foundation. Canonical: https://cmac-new-concept.vercel.app/services/gutters/installation Last updated: 2026-08-24 Leave your gutter installation to CMAC. Seamless aluminum, steel, and copper gutters sized, pitched, and hung to carry real rainfall away from your roof and foundation. [Request Inspection](https://cmac-new-concept.vercel.app/quote) ## Gutter Installation, clearly scoped. CMAC installs gutter systems sized around the roof area, drainage path, selected material, and approved project scope. A gutter system is a piece of engineering, not trim. Four decisions determine whether it works for twenty years or overflows the first time a squall line comes through: the profile and size, the material and gauge, how it is hung, and how it is pitched and drained. Here is how the trade thinks about each one. ## Seamless versus sectional Sectional gutter comes in ten-foot lengths that are lapped and sealed together on the wall. Every lap is a joint, every joint is sealed with a bead of compound, and every bead eventually fails as the metal expands and contracts through the season. On a forty-foot run that is three unnecessary places for water to find its way to the fascia. Seamless gutter is formed on site. A roll-forming machine on the truck takes flat coil stock and extrudes one continuous length matched to the run, so the only joints in the entire system are at inside and outside corners and at the downspout outlets. Fewer joints means fewer leaks and a cleaner line along the eave. Seamless is the default on residential work for good reason. ## Five-inch or six-inch K-style Five-inch K-style is the residential standard and it is adequate on a simple roof with modest planes. Six-inch K-style carries roughly forty percent more water and pairs with a larger outlet, which is what actually matters — most overflow events are outlet-limited, not trough-limited. Six-inch is the right call, not an upsell, when any of the following is true: the roof is steep, so water arrives at the eave with velocity and wants to overshoot; a long valley dumps two roof planes into one short section of gutter; a second-story roof discharges onto a lower roof that then drains to that gutter; the eave run is long with only one practical downspout location; or the building sits in a high-intensity rainfall area, which describes most of the Gulf coast and East Texas. Half-round is a legitimate profile on historic and tile-roofed homes, but at the same nominal width it holds less water than K-style, so size up when you choose it for looks. ## Aluminum, galvanized steel, or copper - Aluminum is the volume choice: it does not rust, it comes pre-finished in a baked enamel, it is light enough to hang long seamless runs, and it is the material nearly every roll former on a truck is set up to run. - Galvanized steel is stiffer and takes an impact — a ladder, a falling limb, a hailstone — better than aluminum. The tradeoff is corrosion: the zinc coating is sacrificial, and once it is consumed at a cut edge or a scratch, rust starts. Steel earns its place on commercial work and on homes under heavy tree cover where ladder and limb contact is constant. - Copper is the long-term material. It needs no coating, it work-hardens rather than fatiguing, and it patinas to a stable surface instead of degrading. Copper gutters commonly survive fifty to one hundred years. It costs several times what aluminum does and it is soldered rather than sealed, so it is a craft install, not a production one. ## Gauge is the number nobody quotes you Aluminum gutter coil is sold in thicknesses. Point-zero-two-seven is the common residential gauge and it is genuinely thin — you can dent it with a thumb. Point-zero-three-two is heavier stock, and the difference shows up exactly where you would expect: it resists denting from ladders, it holds its shape when a hanger is torqued down, and it sags less between hangers when the trough fills with water and wet leaves. The same logic runs through the accessories. Heavy-gauge hangers, thicker end caps, and properly formed outlets are what keep a system from loosening over time. ## Hangers, not spikes Spike-and-ferrule was the old method: a long nail driven through the front lip, through a spacer tube, and into the fascia. It works until the fascia takes on a little water and softens, or until seasonal expansion works the spike back out. A gutter with spike heads walking out of the fascia is a gutter that is already coming down. Hidden hangers clip inside the trough and fasten with a screw into the fascia and, where possible, into the rafter tail behind it. The load is carried in shear by a screw rather than in withdrawal by a nail, nothing shows from the ground, and a hanger can be re-driven or added without touching the front lip. Typical spacing is twenty-four to thirty-six inches, tightening to twenty-four inches or less on long runs, on six-inch gutter, under valleys where water and debris concentrate, and anywhere ice loading is a factor. ## Pitch and downspouts A gutter is not hung level. It needs a fall of roughly a quarter inch per ten feet toward the outlet so the trough drains dry between storms. Too little pitch and you get standing water, which means mosquito breeding, accelerated corrosion at the seams, and dead weight pulling hangers out of the fascia. Too much pitch and the gutter visibly runs downhill against the fascia line, which owners notice immediately. On long runs the fix is to crown the middle and drain to downspouts at both ends rather than forcing one continuous slope across forty feet. Downspout capacity is where systems most often come up short. As a working rule, a two-by-three downspout serves roughly six hundred square feet of roof area and a three-by-four serves roughly twelve hundred, with round leaders sized similarly. Divide the tributary roof area by that figure and you get the number of downspouts the run actually needs — and it is frequently more than the builder installed. A three-by-four outlet also passes shingle grit and small debris that would plug a two-by-three. Where the water lands matters as much as how it gets there. A downspout that discharges at the base of the wall has simply relocated the problem from the roof to the footing. Extensions, splash blocks, or buried drain lines should carry discharge a minimum of four feet from the foundation, and farther on clay soils or where grade falls back toward the house. Grade away from the wall at roughly six inches over the first ten feet, and never let a downspout discharge onto a walking surface that will ice over. > New gutters and a new roof belong on the same schedule. Drip edge, starter course, and gutter apron all tie into the back of the trough, and setting them together is the only way to guarantee water leaving the shingle actually enters the gutter instead of running behind it. ## What gutter installation includes ### Seamless, formed on site Continuous runs rolled to length at your house, so the only joints are at corners and outlets. ### Sized to your roof Trough profile, outlet size, and downspout count set by tributary roof area, not by habit. ### Heavy-gauge materials Thicker coil and heavy hangers hold their shape under water, debris, and ladder contact. ### Hidden-hanger mounting Screwed hangers into fascia and rafter tails instead of spikes that work loose over time. ### Correct pitch and discharge Positive fall to the outlets and discharge carried well clear of the foundation. ### Written project scope Materials, dimensions, and the approved installation scope are documented before work begins. ## How CMAC handles gutter installation 1. **Free inspection and measure** — We walk the eaves, check fascia condition, and measure every run and roof plane feeding it. 2. **Size the system** — Profile, gauge, outlet size, and downspout locations are set from tributary area and roof pitch. 3. **Repair the substrate** — Rotted fascia and failed gutter apron get corrected before anything is hung on them. 4. **Form and hang** — Runs are rolled on site, hung on hidden hangers, and pitched to the outlets. 5. **Downspouts and discharge** — Leaders are run, secured, and terminated well away from the foundation. 6. **Water test and walkthrough** — The system is flushed, checked for standing water and leaks, and reviewed with you. ## Gutter Installation questions ### Why do gutters matter so much? Gutters are the only thing moving roof runoff away from your foundation. When they fail, water sheets down the wall and saturates the soil at the footing, which is how you get foundation movement, wet crawlspaces, basement intrusion, and rotted fascia — all of which cost far more to fix than the gutters would have. ### Do gutter guards actually work? They reduce cleaning frequency substantially, but no guard is truly maintenance-free, and any company claiming otherwise is overselling. Different guard styles handle different debris: fine mesh handles pine needles and shingle grit that screens let through, while reverse-curve designs shed leaves well but can overshoot in heavy downpours. The right choice depends on what is actually falling on your roof. ### What kind of company is CMAC? CMAC Roofing and Sheet Metal LLC is a veteran-owned and operated construction and remodeling company founded by Christian Viveiros. We handle roofing, gutters, garage doors, restoration, and exterior work for residential, commercial, and multi-family properties. We are a GAF Master Elite® certified contractor and a GAF President’s Club award winner. ### What states does CMAC serve? Five: Texas, Oklahoma, Arkansas, Tennessee, and Georgia. CMAC publishes office addresses and local contact information for Dallas–Fort Worth (Haslet), Houston (Rosenberg), Austin (Georgetown), Oklahoma City, and Nashville. Arkansas and Georgia inquiries route through the regional line; no walk-in office is published in either state. ### What are CMAC’s core principles? Earn the customer’s trust, use only quality materials, and deliver exceptional workmanship. The company operates under the motto “Integrity Truly Matters,” and the practical version of that is simple: document what we find honestly, quote what the job actually requires, and stand behind the work after the crew leaves. ### What does GAF Master Elite® mean? GAF awards Master Elite® status to a small fraction of roofing contractors in North America. It requires proof of proper licensing, adequate insurance, and a sustained record of quality installations and customer satisfaction. Practically, it means CMAC can offer enhanced GAF system warranties that non-certified contractors cannot, and that GAF has independently vetted the company. CMAC is also a GAF President’s Club award winner. ## Related services - [Gutters](https://cmac-new-concept.vercel.app/services/gutters) - [Gutter Repairs](https://cmac-new-concept.vercel.app/services/gutters/repairs) - [Gutter Guards](https://cmac-new-concept.vercel.app/services/gutters/gutter-guards) - [Gutter Maintenance](https://cmac-new-concept.vercel.app/services/gutters/maintenance) - [Siding](https://cmac-new-concept.vercel.app/services/exteriors/siding) ## Start with a free inspection. Tell CMAC what is happening at the property. We will inspect the condition and put the recommended scope in writing. [Request Inspection](https://cmac-new-concept.vercel.app/quote) [Call 1-888-389-CMAC](tel:+18883892622) ## Sources - https://www.cmacroofing.com/gutter-installation