Concord Roof Pros provides professional skylights & sun tunnels in Concord, CA for residential and commercial properties across central and east Contra Costa County. Half the skylight calls we take in winter are not leaks. They are condensation, and the fix is not on the roof at all. Knowing the difference before you pay somebody to reseal a perfectly sound skylight is worth a few minutes of reading.
On a clear night the glass radiates heat to the sky and falls below the room's dew point. Moist indoor air reaches it, condenses on the inside face, and drips off the shaft. The tells are timing and pattern: cold clear nights rather than rain, worst in kitchens and bathrooms, water on the glass rather than tracking from the frame. Insulation, an insulated glass unit and running the bath fan solve it. Sealant does not.
Real leaks come from how the unit meets the roof. Older Concord houses are full of site-built curbs flashed with bent sheet metal and mastic, which works until daily movement between a wood curb and the deck opens that joint. We replace them with a factory unit and its matched flashing kit, which is engineered as a set, tested as a set, and does not rely on a bead of sealant as the water barrier.
For new work we prefer curb-mounted units on low-slope areas and deck-mounted on pitched slopes, with laminated low-E glass rather than acrylic. Acrylic domes yellow, craze and go brittle under inland UV, and the twenty-year-old bubbles we take off are frequently cracked right through. Where a room needs daylight but not a view, a solar tube costs less, leaks less, and delivers a surprising amount of light through a small penetration.
Venting units are worth the upgrade in a two-story with a stair landing. The daily swing here means a house can dump a lot of heat quickly after sundown if you give the stack a high opening to work with, and that is free cooling through September, which is often our hottest month. Chasing that condensation with a caulking gun is the classic wasted invoice.
Whatever goes in, it gets set properly: flashing woven into the courses above and below, a self-adhered membrane collar around the framed opening, a head flashing that carries water around the unit rather than into the head joint, and shaft framing insulated and air-sealed before the drywall goes back on, so a condensation problem does not arrive with the new unit.
Our licensed and insured team brings the right materials and equipment to every job — Class A fire-rated shingle assemblies, SBS-modified bitumen cap sheet, ASTM C920 high-movement joint sealant, floating expansion clips on standing seam, 24-gauge Galvalume panel, reglet-cut counterflashing — and backs the work with a written workmanship warranty. We serve Concord and nearby communities including Pleasant Hill, Martinez, Walnut Creek, Clayton.
What We Handle
Everything our skylights & sun tunnels in Concord covers
One crew, one point of contact, and the full range of skylights & sun tunnels work in Concord, CA. If it is on this list we do it in house rather than handing it to a subcontractor:
- skylight installation
- skylight replacement
- curb-mounted skylight
- deck-mounted skylight
- skylight flashing kit
- acrylic dome replacement
- solar tube installation
- laminated low-E skylight glass
- skylight shaft insulation
- skylight condensation
- venting skylight
Not sure which one describes your situation? Describe it in plain words and we will sort it out — or browse the rest of our Concord services.
Materials, equipment and how we do skylights & sun tunnels
The difference between skylights & sun tunnels that lasts and skylights & sun tunnels that gets redone in three years is almost always preparation and materials, not the finish you see on day one. We work with Class A fire-rated shingle assemblies, SBS-modified bitumen cap sheet, ASTM C920 high-movement joint sealant, floating expansion clips on standing seam, spec them to the job instead of to the invoice, and write the material grades into the free estimate so you know exactly what you are buying.
Every Concord job runs the same way: site walk and measurements, written scope and fixed price, protection of the surrounding area, then the work itself with a daily clean-up. Years of roofing work in central and east Contra Costa County means we have already met whatever your property is going to throw at us — awkward access, older construction, an HOA with opinions.
Where we do skylights & sun tunnels outside Concord
Concord Roof Pros covers Concord and the surrounding communities of central and east Contra Costa County. Crews run out to the same nearby cities every week, so an out-of-town job does not mean an out-of-town price.
- Skylights & Sun Tunnels in Pleasant Hill, CA — Contra Costa, population 34,613
- Skylights & Sun Tunnels in Martinez, CA — Contra Costa, population 37,287
- Skylights & Sun Tunnels in Walnut Creek, CA — Contra Costa, population 70,127
- Skylights & Sun Tunnels in Clayton, CA — Contra Costa, population 11,070
- Skylights & Sun Tunnels in Lafayette, CA — Contra Costa, population 25,391
- Skylights & Sun Tunnels in Moraga, CA — Contra Costa, population 16,870
Start on the Concord Roof Pros homepage for a free estimate, or call (844) 511-2320 and describe the job.
Why Concord Chooses Concord Roof Pros
- ✓Estimates come from on the roof and in the attic, never from the driveway or from a satellite measurement alone.
- ✓We specify high-movement joint sealant and reglet-cut counterflashing, because asphalt mastic does not survive a daily temperature swing.
- ✓Long metal runs get floating clips and concealed fasteners, so panels can move without wallowing out several hundred screw holes.
- ✓Tile roofs get quoted as a lift-and-relay first, since the underlayment is what expired and the tile itself usually has decades left.
The standards behind skylights & sun tunnels
Quality here is not a matter of opinion — it is written down. The skylights & sun tunnels work we do in Concord follows published industry standards: NRCA publishes the Roofing Manual, the industry's reference for details and slope minimums, and Asphalt Roofing Manufacturers Association sets the shingle application and ventilation guidance the warranties reference. If a contractor cannot tell you which standard a detail comes from, that is worth asking about before you sign.
Every skylights & sun tunnels project in Concord gets the same attention, whether it is a single room or a full commercial job. We show up on schedule, keep the site clean, and stand behind the work — the estimate is free and there is no pressure.
Ready to get started? Call (844) 511-2320 for a free skylights & sun tunnels free estimate in Concord, or request a quote and we'll get right back to you.