Seamless gutter installation in Snohomish, King & Skagit Counties
Made on site in one piece to fit your house, so there are no seams to leak or split.
What our customers say.
EXCELLENT
Based on 16 reviews
Posted on Google![]()
Joe RTrustindex verifies that the original source of the review is Google.
Glen and Alex were great to work with. Very responsive, easy to schedule, their quote was less than others I got, and most importantly their gutter fab and install was flawless. Great local company!Posted on Google![]()
PaigeTrustindex verifies that the original source of the review is Google.
The Pro-Flow Gutters Company replaced all my gutters and downspouts in October 2024. When I recently reported a water intrusion issue, Glen, the owner, responded promptly and scheduled an inspection within two days. Glen’s initial theory was that a sealant used at the junction where the downspout, T-Rex, and gutter meet might have caused the water intrusion. He personally investigated the issue rather than delegating it to his team and discovered another sealant inside the gutter that may have restricted water flow. That sealant had likely been applied by my roofing company during a previous roofing modification. To resolve the problem, Glen removed all the sealant, then replaced the existing T-Rex with a new one after creating a proper downspout opening instead of using any sealant. The result looks clean and professional. I was also pleased to see that he used a brand-new T-Rex piece instead of reusing or patching the old one. In addition, his team member, Alex, was very kind and took the time to locate and pick up many nails left behind by my roofing company. I truly appreciated Glen and his team’s prompt response, thorough investigation, and high-quality workmanship.Posted on Google![]()
Barbara caudillTrustindex verifies that the original source of the review is Google.
We had a gutter hit by tree branch - was going to replace all the gutters . We called Pro Flo Gutters , Glen and Alex came out and suggested not to replace them all just the damaged areas and a couple down spouts that were not working properly . They saved us a ton of money by being honest . We had another company come out for a bid and they wanted over $ 4,ooo.oo . We can't thank them enough because we are SC and are on a fixed income - Great Family owned Bus We suggest them to all of our family and friendsPosted on Google![]()
Rider VivTrustindex verifies that the original source of the review is Google.
They were so responsive when I asked for a quote. They scheduled me right away and came out and did an excellent job! They are professional, friendly, and do super work. I am very pleased and will recommend them to everyone. The cost was literally half of what one of the "name brand" outfits quoted me. These guys are the best!Posted on Google![]()
Maryna KantsyrTrustindex verifies that the original source of the review is Google.
Excellent job! Thank you!Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
A seamless gutter is one piece of aluminum, made on site to fit each side of your house. The only joints are at the corners and downspouts. Store-bought gutters come in 10-foot pieces joined together, and every joint can leak. Those leaks usually show up within 5 to 10 years as stains down your siding.
What sizes and styles do you offer?
We install heavy-duty aluminum gutters in the standard shape you see on most homes here. Aluminum suits this climate. It doesn’t rust, its baked-on color lasts, and it’s light enough to hang on brackets without straining the fascia (the board your gutters attach to).
- 5-inch — the right size for most homes.
- 6-inch — holds about 65% more water. Best for large or steep roofs.
- Fascia and S-Line styles — sleeker options if you want a different look. See the styles.
- Many colors — match your trim or siding. Black is a popular choice here.
What holds the gutters up?
We use Alu-Rex T-Rex brackets instead of nails or spaced hooks. They run the full length of the gutter and hold up to 250 pounds per foot. That matters here, because wet fir needles are heavy, and freezing winters work nails loose over time. The brackets also keep the gutter from bending or twisting.
What does installation day look like?
- We take down the old gutters first and check the wood behind them. If it’s rotten, we stop and talk to you. We replace rotted fascia boards (the board your gutters attach to) before the new gutters go up, so we never hang new gutters on bad wood.
- We make your gutters on site with a machine in your driveway, cut to fit each side of the house.
- We seal the corners, add the downspout openings, set the brackets, and angle the gutters slightly so water flows to the downspouts.
- Downspouts go on last, where they’ll carry water away from your foundation.
- We clean up, haul away the old gutters and pick up nails.
Most homes are done in one day. We offer a lifetime guarantee for both our workmanship and our products.
Common questions
How long do aluminum gutters last here?
20 years or more, when seamless gutters are installed well on brackets. Gutters usually fail early for other reasons: leaky joints on store-bought gutters, loose hangers, or rot in the board behind them.
Do I have to replace the whole system?
Often not. If two sections are damaged and the rest are fine, we’ll quote just those two. We can match your existing gutters because we make them on site.
Should I replace gutters before or after a new roof?
After, if you’re getting a new roof soon. Roofing work is hard on gutters, and roofers find it easier to work without new gutters in the way. If the new roof is more than a year or two away, do the gutters now.
Can you install in the rain?
Yes. This is Western Washington, so we work in the rain. We only reschedule for ice or high winds.
Where we install
Get a free written estimate
Call us or send your address. We will get back to you within 24 hours on business days to book a time to look at your gutters.
