Roof repair in Sunnyvale, CA starts with one phone call
Water stain on the ceiling? Shingles in the yard? A roof that drips every time it rains? Call (669) 240-7171 any time and describe the problem. We are a certified California roofing contractor, and we come out and look at it.
Call any time, day or night, including for emergencies.
Workmanship warranty
Rated 4.8 by customers
Which sign are you seeing on your roof?
Tap what matches. You'll get the likely cause, how soon to act, and what to do next. This is general guidance, not a diagnosis. We have to see the roof to say for sure.
Act soon
Brown stain on a ceiling or wall
Likely cause: water is getting through the roof or around a vent or chimney and soaking the drywall. A ring that grows after rain points to an active leak. A stain that never changes may be old.
What to do:
Trace the edge of the stain in pencil and write the date next to it.
Take photos, and check the attic for wet insulation if you can do it safely.
Move belongings out of the way, then call to arrange an inspection.
Likely cause: wind, age and years of sun. Once a shingle or tile is gone, the layer underneath is exposed, and that layer is not built to take rain for long.
What to do:
Photograph the roof from the ground and keep any pieces that fell.
Stay off the roof. Loose shingles and tiles are slippery and break underfoot.
Likely cause: an opening in the roof, often from storm damage, a failed seal or a damaged vent. Water indoors can reach wiring, insulation and framing quickly.
What to do:
Move furniture and electronics away and put a bucket under the drip.
Stay away from wet ceiling light fixtures. If water is near wiring, turn off power to that room.
Don't go on the roof in wet weather. Call now so a temporary cover can be arranged.
Likely cause: a low spot, a clogged drain or worn membrane. Water that is still sitting there a day or two after rain strains the surface and finds small cracks.
What to do:
Photograph the pooled area and note where it sits on the roof.
Check the ceiling directly below for stains.
Have us inspect the seams and drains before the next storm.
Water getting through the roof or around a vent or chimney
Act soon
Missing, curled or cracked shingles or tiles
Wind, age and sun exposure
Fix this season
Water coming in right now
An opening in the roof from storm damage or a failed seal
Urgent. Call now
Water pooling on a flat roof
A low spot, clogged drain or worn membrane
Watch closely
Why Sunnyvale roofs start leaking
Most roof leaks here come from wear that built up during the dry months and showed itself in the first heavy rain.
Sunnyvale has a mild climate with long dry stretches and rain concentrated in the cooler months. Sun and heat slowly dry out sealants, rubber vent boots and the surface of asphalt shingles. When the rain returns, those weak spots let water through.
Wind and trees add to the wear, lifting shingles, sliding tiles and blocking valleys.
Roof type changes where problems start. Asphalt shingles lose their surface and crack at the edges; fixing shingle damage is usually quick when it's caught early. Tile roofs tend to fail at cracked tiles and worn underlayment, and how tile repairs work explains the steps. Flat and low-slope roofs, which you'll find on some mid-century homes, collect water at seams and low spots. See patching flat and low-slope roofs for what that involves.
Nearly every roof shares one weak point: the joints where the roof meets something else, like a chimney, a wall or a vent. Resealing flashing is often the real fix behind a leak that keeps coming back.
A roof's year in Sunnyvale
Summer and early fallHeat and sun bake sealants, rubber boots and shingle surfaces.
Winter and springRain finds the weak spots. This is when most leaks show up.
Any time of yearWind, falling branches and plain age keep adding wear.
Should you repair or replace your roof?
Repair is usually enough when damage is limited to one area and the rest of the roof is in good shape. Replacement deserves a conversation when damage is widespread or repairs keep failing. We can tell you which applies after looking at the roof.
Repair or replace: how to think about it
What you're looking at
Repair usually fits
Ask about replacement
How much is damaged
A few shingles, one leak, or one section of flashing
Damage across several parts of the roof
How the rest of the roof looks
The surface is intact and in good shape for its age
Widespread wear, bare patches or brittle material
Leak history
A first leak with a clear cause
The same area leaks again after repairs
The wood underneath
The roof deck is dry and solid
Soft, dark or rotted decking is found
Pro tip
Ask any roofer, us included, to show you photos of the damage and of the finished repair.
Don't wait for the stain to spread
Water can soak insulation and rot the wood under the roof long before a stain shows on the ceiling. See how a roof leak is traced and fixed.
Typical price ranges
What does roof repair cost in Sunnyvale?
Most roof repairs fall into three sizes. These ranges show what each one typically costs, so you know what to expect before you call.
They are not quotes. Your exact price comes after we look at the roof.
“Leak fix pros found a hidden slab leak in my home that I had no idea about. They saved me from a lot of damage. Highly recommend!”
RG
R. Garcia
Homeowner, South Sunnyvale
✓ Verified
★★★★★
“I called them for an emergency leak detection, and they arrived within an hour. Their service was prompt and professional.”
MC
M. Chang
Homeowner, Lakewood Village
✓ Verified
★★★★★
“Their thermal imaging service was incredible. They found leaks I didn’t even know existed. Excellent work!”
JT
J. Taylor
Homeowner, Murphy Area
✓ Verified
★★★★★
“The team fixed a roof leak above our office without disrupting business. Clean, fast, and honest.”
SM
S. Mehta
Business Owner, Moffett Park
✓ Verified
★★★★★
“They explained the issue clearly, repaired the damage quickly, and left the property spotless. Great experience.”
AI
A. Ivanov
Homeowner, Central Sunnyvale
✓ Verified
What a helpful call sounds like
"There's a brown ring on the ceiling in the back bedroom. It got bigger after the last storm. The roof is asphalt shingle and I'm not sure how old it is."
That short description covers what, where, when and roof type. It's enough for us to know what to look for.
What to know before you call
You don't need technical words. A few details help us plan the visit:
What you see: a stain, a drip, missing shingles or pooling water.
Where it is: which room, or which side of the house.
When it happens: only in heavy rain, after wind, or all the time.
Roof type and age, if you know them.
Photos from the ground or the attic, taken only if it's safe.
Call and give us your street. We'll tell you whether we can help.
Request a quote
Tell us about the problem and we will get back to you. If water is coming in now, please call instead.
Our Location
Roof repair questions, answered plainly
How do I know if my roof needs repair?
Look for stains on ceilings or walls, missing or curled shingles, cracked tiles, shingle bits in the gutters, and daylight in the attic. Any one of these deserves a closer look, and two or more mean it's time to call. The symptom checker above shows how urgent each sign is.
Can a small roof leak wait until spring?
It's better not to wait. A small leak still soaks insulation and wood every time it rains, and the damage grows quietly. If it only drips in heavy rain, set out a bucket, take photos, and call to schedule an inspection.
How much does roof repair cost in Sunnyvale?
Most repairs fall into three sizes, and the typical ranges are in the price ranges section. Your exact price depends on the roof and the damage. Cost is driven by.
Is it better to repair or replace my roof?
Repair fits limited damage on a roof that is otherwise sound. Replacement is worth discussing when damage is widespread, the roof is near the end of its life, or the same spot keeps leaking. The repair or replace table compares the signs side by side.
What should I do right now if my roof is leaking?
Move furniture and electronics away, put a bucket under the drip, and keep clear of wet ceiling light fixtures. Don't go on the roof in wet weather. Then call us, any time, day or night. The emergency steps are listed on their own page.
How do I choose a roofer I can trust?
Check the license first. In California, roofing work is generally done by a contractor licensed through the Contractors State License Board, and you can look up any license number on its website. Also ask for proof of insurance, a written estimate and a clear start date. Be careful with anyone who pushes you to pay a large amount up front or knocks on your door after a storm. That applies to us as well: we are a certified California roofing contractor, bonded and insured, and we are glad to answer these questions.
Does homeowners insurance cover roof repair?
Sometimes. It depends on your policy and on what caused the damage. Take photos before any repair, keep your receipts, and ask your insurer before you sign a contract. This is general information, not insurance advice.
Roof problem? Call us any time.
We are open 24/7. Call and tell us what you see on your roof. The sooner it is looked at, the less there is to fix.