The Brothers That Just Do Gutters · Sunnyvale
5 Inch Gutters in Sunnyvale & the Peninsula
The standard residential size, formed seamless on-site and hung to drain correctly for Peninsula homes.
- Licensed & Insured
- Seamless Gutters Formed On-Site
- Serving Sunnyvale & the Peninsula
Quick answer
5 Inch Gutters in Sunnyvale and the Peninsula: 5 inch K-style seamless gutters from The Brothers That Just Do Gutters Sunnyvale are the right fit for most single-family roofs, formed on-site and paired with 2×3 or 3×4 inch downspouts depending on roof area. Call (650) 600-0598 or book online.
Sizing with 5 inch gutters on the Peninsula
When 5 inch is enough, and how to keep it that way
We will not upsell you out of a 5 inch gutter that does the job. Here is how to tell if your house fits, and the small changes that keep a 5 inch system from spilling.
Plenty of single-story Peninsula homes have simple rooflines: modest roof planes, a shallow or moderate pitch, few valleys and no upper roof draining onto a lower one. On houses like that, a well-placed 5 inch seamless gutter carries the water from a normal winter storm without trouble, costs less than going bigger, and keeps a slim line along the eave.
Where 5 inch gets into trouble is rarely the whole house. It is usually one run that is too long for its downspouts, a corner below a valley, or a lower gutter catching water from a second story. Those spots tend to show themselves in the first heavy rain after a dry summer, when debris and water hit the system at the same time.
The good news is that most of those problems have smaller fixes than replacing the whole system with a bigger gutter.
Does your house qualify for 5 inch?
| Your situation | 5 inch? | If not, the usual fix |
|---|---|---|
| Run under 40 feet with a downspout, no overflow in average rain | Yes | None needed |
| Run over 40 feet with two or more downspouts | Yes | None needed |
| Run over 40 feet that can only have one downspout | Usually not | Upsize that run to 6 inch |
| Asphalt shingles with a proper drip edge | Good match | Add or correct the drip edge if it is missing |
| Lower gutter catching an upper roof’s gutter water | No | Upsize the lower run |
| Overflow at one corner in heavy rain | Maybe | A second downspout or a 3 by 4 outlet often solves it |
Ways to keep a 5 inch system from spilling
- Add a downspout to long runs so water has a shorter trip to an outlet.
- Step up to 3 by 4 inch downspouts on larger roof areas without changing the gutter.
- Upsize only the section under a valley or upper roof, and keep 5 inch elsewhere.
- Keep the pitch true so water does not stand in low spots between hangers.
- Keep outlets clear, since a half-blocked downspout cuts capacity faster than anything.
- Add a fine mesh guard where liquidambar pods or needles keep plugging the outlets.
Common 5 inch questions we hear on estimates
Homeowners often ask whether going bigger is simply better. Not always: a larger gutter costs more, uses more material and adds visual weight to a low, single-story eave, and if your roof never fills a 5 inch trough you are paying for capacity you will not use. Others ask whether their old gutters failed because they were 5 inch. Usually the size was fine and the problem was age, loose nail-and-ferrule hangers or clogged outlets, which is a gutter repair or replacement question, not a sizing one.
If your house sits right on the line, your Solutionist will show you where 5 inch works and where it does not, and price both. Compare with 6 inch gutters or the full gutter size guide, and keep the outlets clear with BroGuard micro-mesh. We install 5 inch seamless runs across Santa Clara, Mountain View and the rest of the Peninsula.
Find out if 5 inch is all your roof needs. Call (650) 600-0598
Get a Free EstimateServices
More Ways We Help Peninsula Homeowners
Related services from the same local crews.
Aluminum and specialty gutters formed on-site to the exact length of your roofline. No factory seams, sized for Peninsula rainfall.
Learn more Gutter CleaningOak and liquidambar leaves, redwood and pine needles and palm debris cleared by hand, downspouts flushed and tested.
Learn more Gutter RepairLeaking seams, sagging runs, loose hangers and rotted fascia, repaired the same visit when possible.
Learn more BroGuard Gutter GuardsFine metal mesh built for oak and redwood country. Stops leaves, needles and grit while a full winter of Peninsula rain flows straight through.
Learn more Maintenance ProgramScheduled cleanings before the first storms and again after the rainy season so your system never gets a year off.
Learn more Free estimateRequest a Free EstimateTell us what is going on with your Sunnyvale gutters. A local Solutionist walks the roofline, explains what you actually need and leaves a written price. No pressure, no obligation.
Book my free estimate or call (650) 600-0598How it works
From first call to clean rooflines
- 1Call or book online
Tell us what is going on with your Peninsula gutters. Same local team answers.
- 2On-site walkthrough
A Solutionist checks the roofline, downspouts and drainage and gives you a written estimate.
- 3The work gets done
Seamless runs formed in your driveway, cleaning and repairs finished the same visit when possible.
- 4Walkthrough and clean-up
We flush-test the system, show you the results and leave the property cleaner than we found it.
Why the Brothers
Why Peninsula Homeowners Call the Brothers
Eric Dodge runs it out of our shop on Willow Avenue in Sunnyvale. When you call (650) 600-0598 you reach the local team that works from Sunnyvale to San Francisco every week.
Our truck carries the machine. Each run is extruded on-site to the exact length of your roofline, so there are no factory seams to leak when the winter storms arrive.
BroGuard fine metal mesh stops oak leaves, redwood and pine needles and palm debris while heavy rain flows through. Nothing plastic on your roofline.
Cleanings before the leaf drop, downspout flushing and repairs scheduled before the first atmospheric river, so your gutters are not the weak link in December.
Year-round
Your Peninsula gutter calendar
What we are doing on Peninsula rooflines each season, so your system is ready before the weather asks it to work.
- Fall · Sep to NovPre-storm cleaning
Oak and liquidambar leaf drop cleared and downspouts flushed before the first real rain arrives.
- Winter · Nov to MarAtmospheric river response
Overflow and clog calls prioritized ahead of forecast systems, plus emergency repair on loose runs.
- Spring · Apr to MaySpring clean-out and guards
Blossom, seed and pollen cleared, and BroGuard fine mesh installed ahead of the next leaf drop.
- Summer · Jun to AugInstall season
The long dry window for new seamless runs, fascia repair and downspout upgrades before the rain returns.
The Work
Seamless Gutters, Done Right.



Reviews
What Peninsula Homeowners Say
“The crew from ‘Brothers’ did a great job repairing a damaged segment of the gutters at our home in Los Altos. They showed up on time, as promised, completed their work diligently and took care to clean up carefully after the work was completed. Many thanks!”
Posted on Google“They were very professional, approachable and responsive to the desires of the customer’s end goal. The crew worked very efficiently. They offer the curbed sleek gutters which are not easy to find; I’m happy with the overall results!”
Posted on Google“The Brothers were great to work with. Quick response, easy scheduling, flexible accommodation of our requests. Front man Max and get ’er done Robert both knew their stuff. They also didn’t hesitate to come back immediately for some touchups even after they had my money.”
Posted on Google5 Inch Gutters Questions, Answered
When each run under 40 feet has at least one downspout, runs over 40 feet have two or more, the gutters do not overflow in average rain, and no upper roof gutter drains into it. Asphalt shingles with a proper drip edge are a good match. That describes many single-story Peninsula homes.
A 2 by 3 inch downspout is the standard with 5 inch gutters. On larger roof areas we pair 5 inch gutters with 3 by 4 inch downspouts, which moves more water off the roof without changing the gutter size. The right pairing is set by roof area at the estimate.
No. A 5 inch gutter should not take runoff from an upper roof that has its own gutters. The extra water from above overloads it in a real storm. On two-story Peninsula homes, the lower gutter below an upper roof is usually the section we upsize to 6 inch.
Yes. A 5 inch system uses less material and smaller downspouts, which makes it the cost-effective choice where it fits, and it handles average rainfall well. The savings only make sense if it does not overflow, so we size by run length, roof area and pitch first, then price.
Usually a long run drains to a single downspout, an upper roof is dumping into it, or a valley is concentrating fast water in one spot. Winter storms here arrive as downpours, and those are the moments a 5 inch gutter gets overwhelmed. Adding a downspout or upsizing that one section usually fixes it.
Yes. Both K-style and half-round are available in 5 inch. K-style is the most common residential profile and handles large amounts of water for its size, while half-round gives a softer, traditional line that suits smaller period homes. Ask your Solutionist which profiles are available in the material you want.
Service area
Peninsula communities we serve
Every community on this list is inside our service area and gets the same local crews, on-site seamless gutters and free written estimates. Our territory covers 70 ZIP codes running from Santa Clara up the Peninsula and across all of San Francisco. Call (650) 600-0598 or request a free quote and a Solutionist will come out.
Free estimates
Ready for gutters that actually work on the Peninsula?
Free, no-pressure estimates from local Solutionists. Seamless gutters formed at your home, cleaning and repair scheduled around you, and BroGuard protection that keeps you off the ladder.
The Brothers That Just Do Gutters · Sunnyvale · (650) 600-0598 · Serving Sunnyvale, CA and the Peninsula
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Licensed, Bonded & Insured · California Contractor License #1123680

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