Pomona Roof Pros provides professional flat & low-slope roofing in Pomona, CA for residential and commercial properties across the Pomona Valley. Almost every low-slope roof in residential Pomona is an addition. A rear family room, a 1960s carport enclosure, a porch that acquired a roof, or a bedroom pushed out under a shallow shed plane. Almost none of them were built as well as the main roof.
That matters, because those planes are usually the oldest and worst part of the roof and they are also independent of the main house. They tie in above a wall rather than into a valley, so we can reroof them alone without leaving a seam in the field of the pitched roof. On a staged budget this is very often the first thing to do and the cheapest way to stop an active leak.
What we find on them is a history of coatings. Aluminum-fibered paint over a cracked cap sheet over a 1960s built-up roof, redone every few years, each layer adding weight and hiding the ponding that caused the failure. Once the felts are saturated, coating is money spent on a finished roof. Probe it and a wet built-up assembly gives under your heel. That test takes a minute and it settles the argument.
The replacement is a system, not a coat. Tear off to the deck, replace wet sheathing, correct the plane with tapered insulation where it ponds, then install either a two-ply SBS modified bitumen assembly with a granulated cap sheet or a mechanically fastened single-ply membrane at sixty mil, depending on penetration count and what sits up there. Both are real systems with real warranties behind them.
Details decide the outcome. Edge metal set in mastic and stripped in. A scupper or a real drain rather than a low spot. Curbs raised under any rooftop unit. A termination bar with sealant where the membrane runs up a wall. Two in twelve is the honest floor for shingles and below that we will not install them, whatever the last contractor did. We have torn off plenty that were.
Where a plane is genuinely sound and only the surfacing has aged, a coating is the right answer and we quote it that way. The difference is whether the felts underneath are dry, and that is a probe rather than an opinion. We show you the meter reading either way, and note where we took it.
Our licensed and insured team brings the right materials and equipment to every job — architectural laminated shingles with six-nail fastening, SBS polymer-modified asphalt shingles, 1x6 spaced sheathing overlaid with half-inch plywood, two-ply modified bitumen with a granulated cap sheet, salvaged mission and S-profile clay barrel tile, 24-gauge standing seam with concealed sliding clips — and backs the work with a written workmanship warranty. We serve Pomona and nearby communities including Claremont, La Verne, San Dimas, Diamond Bar.
What We Handle
Everything our flat & low-slope roofing in Pomona covers
One crew, one point of contact, and the full range of flat & low-slope roofing work in Pomona, CA. If it is on this list we do it in house rather than handing it to a subcontractor:
- flat roof repair Pomona
- low slope roofing
- modified bitumen roof
- TPO single ply membrane
- built-up roof replacement
- tapered insulation ponding
- cap sheet replacement
- porch roof reroof
- addition flat roof
- roof drain and scupper
- two in twelve slope
Not sure which one describes your situation? Describe it in plain words and we will sort it out — or browse the rest of our Pomona services.
Materials, equipment and how we do flat & low-slope roofing
The difference between flat & low-slope roofing that lasts and flat & low-slope roofing that gets redone in three years is almost always preparation and materials, not the finish you see on day one. We work with architectural laminated shingles with six-nail fastening, SBS polymer-modified asphalt shingles, 1x6 spaced sheathing overlaid with half-inch plywood, two-ply modified bitumen with a granulated cap sheet, 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 Pomona 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 the Pomona Valley 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 flat & low-slope roofing outside Pomona
Pomona Roof Pros covers Pomona and the surrounding communities of the Pomona Valley. Crews run out to the same nearby cities every week, so an out-of-town job does not mean an out-of-town price.
- Flat & Low-Slope Roofing in Claremont, CA — Los Angeles County, population 37,266
- Flat & Low-Slope Roofing in La Verne, CA — Los Angeles County, population 31,334
- Flat & Low-Slope Roofing in San Dimas, CA — Los Angeles County, population 34,924
- Flat & Low-Slope Roofing in Diamond Bar, CA — Los Angeles County, population 55,072
- Flat & Low-Slope Roofing in Walnut, CA — Los Angeles County, population 28,430
- Flat & Low-Slope Roofing in Covina, CA — Los Angeles County, population 51,268
Start on the Pomona Roof Pros homepage for a free estimate, or call (844) 511-2320 and describe the job.
Why Pomona Chooses Pomona Roof Pros
- ✓Every slope gets its own remaining-life number in years, so you can decide what to fund and when.
- ✓We count layers and probe the deck before quoting, because a hidden third layer changes the entire price.
- ✓We argue against work. Coating aged shingles and reflashing a disused chimney both get talked out of here.
- ✓Staged reroofing across separate planes with their own drainage, never a vertical lap down one slope.
The standards behind flat & low-slope roofing
Quality here is not a matter of opinion — it is written down. The flat & low-slope roofing work we do in Pomona 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 flat & low-slope roofing project in Pomona 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 flat & low-slope roofing free estimate in Pomona, or request a quote and we'll get right back to you.