American Gutter Service
TigardFull replacement in blue
- Gutter
- 197 ft, 6-inch
- Downspouts
- 117 ft of 3x4
- Extras
- 9 cleanouts
Serving Portland, Oregon
Gutter Installation in Portland, Oregon
New and replacement seamless gutters, measured at your house and formed on site.
- 5-inch and 6-inch seamless gutters
- Free written estimates
- Oregon CCB #110122
Prefer to text? Text us a photo of your roofline
- 5.0 on Google188 reviews
- Licensed contractorOregon CCB #110122
- Free estimatesWritten and measured
Why Portland Homeowners Call Us
- Formed on siteEach run is formed from coil at your house, cut to that roof edge.
- Clear written estimatesFree, based on measured footage, easy to compare.
- Careful installsHidden hangers, stainless screws, sealed joints, level runs.
- Water-testedWe run water through it, then walk it with you and clean up.
- LicensedOregon CCB #110122. Check it on the CCB site
Recent Jobs Around Portland
Real homes from our work orders. Street addresses stay private.
Tigard
Gresham, Aug 2026Full replacement in white
- Gutter
- 196 ft, 6-inch
- Downspouts
- 98 ft of 3x4
- Tear-off
- 196 ft
Oregon City, Feb 2026Branch-damaged front run
- Problem
- Branches hit the gutter
- Gutter
- About 100 ft, fascia-style
- Downspouts
- Kept
“We hired AGS to replace our gutters and gutter guards here in SE Portland. Really happy with how it turned out: professional crew and the price was very competitive compared to other quotes we got.”
Skip The Phone Tag. Text Us a Photo.
Send a picture of your roofline and your address. We'll reply with next steps.
Gutter Installation Options
Aluminum seamless gutters and everything that goes with them.
5-inch seamless
The usual fit for smaller roofs, with 2x3 downspouts.
6-inch seamless
For bigger, steeper or tree-covered roofs, usually with 3x4 downspouts.
K-style or fascia-style
K-style reads like trim molding. Fascia-style has a smooth, tall face.
Colors
White is included. Recent jobs used blue, cream and harvest brown.
Downspouts
New, extra or larger, with cleanouts. Downspout installation
5-inch or 6-inch Gutters?
We size each home by roof area, pitch, valleys, tree cover and where outlets can go.
5-inch gutters
- Smaller, simpler roofs
- Usually 2x3 downspouts
- Hangers about every 3 ft on our jobs
6-inch gutters
- Large or steep roofs, two stories, valleys, heavy tree cover
- Usually 3x4 downspouts
- Hangers about every 2 ft on our jobs
A 3x4 downspout has twice the opening of a 2x3: 12 square inches against 6, nominal. When 6-inch gutters make sense
Built For Portland Rain and Firs
36.9 inches
Normal yearly precipitation at Portland International Airport, with 14.5 inches from December to February. NOAA 1991–2020 normals
- Firs, pines and mossNeedles and roof grit block outlets. Why moss damages gutters
- Older homes and complex roofsOlder eaves and valleys need a closer look at fascia, pitch and outlets.
- Garages and ADUsBackyard buildings shed water too, often close to fences and neighbors.
Where Portland downspouts can discharge
City guidance for disconnected downspouts. Worth checking before outlets go in.
- 6 ftfrom a basement
- 2 ftfrom a crawl space or slab
- 5 ftfrom a neighbor's property line
- 10 ftfrom structures next door
- 3 ftfrom a public sidewalk
Source: City of Portland, downspout disconnection. A sloped yard may need more room.
Portland Gutter Installation Cost
Every home is different, so we measure first and give you a free written price. Our recent full-house jobs ran 157 to 214 feet of gutter.
- FootageGutters and downspouts are priced by the foot.
- Gutter size6-inch costs more than 5-inch.
- Downspouts3x4 costs more than 2x3.
- Old gutter removalTaking down and hauling away the old system.
- ColorWhite is included. Premium colors cost extra.
- Height and rooflineTwo stories and extra corners take more time.
- Fascia repairsSoft wood behind old gutters adds to the job.
- Small jobsVery small jobs have a minimum charge.
Hidden hangers, stainless screws and standard elbows are included. Gutter cost guide
How The Installation Works
- You reach out
Call, text a photo or send the form.
- We measure
Then you get a written estimate with size, color and downspouts.
- Old gutters come off
We haul them away and fix any soft wood you approve.
- We form and hang
Formed on site, hung level, downspouts aimed away from the foundation.
- Water test and cleanup
We check flow and leaks, walk it with you and clean up.
Installation, Replacement or Repair?
New installationNew build, addition, ADU or shop with no gutters yet. You're in the right place.
Gutter replacementLeaks at many joints, sagging runs or rust.Gutter repair in PortlandOne leak, a loose section or small damage.Downspout changesOverflow at corners or water by the foundation.Serving Portland and Nearby Cities
We install gutters across Portland and the metro area from our St. Helens shop, and throughout Columbia County.
Portland Gutter Installation Reviews
5.0
“…replaced 100+ feet of gutters at my home, they did a great job.”
“They gave a quote that stayed true. They did not try to upsell us.”
“…after getting 3 quotes, they had the best walk through…”
Portland Gutter Questions
Do I need a permit for gutters in Portland?
Usually not. For one- and two-family homes, the City of Portland lists installing gutters and downspouts as work that needs no building permit. A plumbing permit may still apply to stormwater disposal, such as a drywell or rain drain. See the City list.
How long does gutter installation take?
Most homes take about a day. Your written estimate covers the work on your house, and we confirm the date before we start.
Do you remove the old gutters?
Yes. We take the old gutters down and haul them away. Removal is listed on your written estimate.
Can you install gutters on older homes, garages and ADUs?
Yes. On older homes we check the fascia and rafter tails first, because new gutters need solid wood. Garages, ADUs and shops can go on the same estimate as the house.
Are seamless gutters better than sectional gutters?
Seamless gutters have joints only at corners and outlets, so long runs have fewer places to leak. Compare pre-cut and seamless.
Are estimates free in Portland?
Yes. Estimates are free and in writing anywhere we serve in the Portland metro.
Get a Written Estimate for Your Portland Home
Send the form, call or text a photo. We measure, then give you a written price. Free across the Portland metro.