Metal roofing
Architectural shingles
Tile roofing
GAF
Owens Corning
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Replacement Across Montclair
Roof replacement in Montclair costs between $9,800 and $22,000 for a typical single-story tract home, with most full tear-offs landing in the $12,000 to $16,000 range. The price swings on two things you can’t see until the old roof comes off: decking condition and how many layers are already up there. Barnwood Roofing has been working on homes across the 91763 zip code long enough to know what’s under most of these roofs before we even set up the ladder. Our Roof Replacement team serves the neighborhoods south of the 10, the Foothill Boulevard corridor, and the older subdivisions off Monte Vista Avenue. Call (855) 382-1073 for a straight answer and a free estimate.
Why Barnwood Roofing Is Montclair’s Preferred Roof Replacement Company
Most Montclair homeowners call us after getting one of two pushes: a handyman quoting a cheap overlay, or a door-knocker warning that the roof will cave in by Thursday. We don’t do either. Our inspection is a standalone service – you pay for the assessment, you get the findings, and there’s nothing owed beyond that. Ruben Calloway set the company up that way on purpose. Seven manufacturer lines means we’re not married to one brand’s margins, so when we tell a homeowner on Ramona Avenue that their concrete tile still has ten years left, we mean it. When we tell a homeowner off Central Avenue that a third overlay won’t pass code, we mean that too. Every recommendation comes back to one question: what would we put on our own house in Montclair? That’s the standard, and it’s not a slogan.
Styles & brands we work with
Reroofing in Montclair
Reroofing in Montclair almost always means a full tear-off, not an overlay. The reason is baked into the housing stock: most homes in 91763 went up between 1955 and 1975, and a lot of them still have original wood-shake or a first-generation concrete tile roof. Some already carry two overlay layers. Montclair city code no longer allows a third layer, so the decision gets made for you. Before we quote anything, we’ll pull permit history and count the layers at the eaves. That’s the only way to give you a number that won’t move later.
What Reroofing Involves Here
A reroof on a 1960s Montclair tract home typically runs $11,000 to $16,500 for architectural asphalt, with concrete tile hitting $18,000 to $24,000 when the structure can support it. We strip everything to the deck, inspect the framing and sheathing, replace what’s failed, and install new underlayment, flashing, and ridge venting. The good news on older single-story homes: roof geometry is simple and the crews move fast. The bad news: attic heat has often done more damage than anyone knew.
When the Existing Roof Can’t Be Saved
You’ll know it’s reroof time when you see granule loss collecting in gutters, curling shingles at the eaves, or daylight through the attic boards near the hips. In Montclair’s dry Santa Ana season, ridge caps and flashing lift first, and by the time winter rain arrives, the leaks are already inside the wall cavities. If your roof has one overlay already and it’s failing, you’re looking at a full reroof. We’ll tell you if a repair would buy you a few years, but when it won’t, you’ll hear that plainly.
Flat Roof Replacement in Montclair
Flat roof replacement in Montclair is a smaller but real part of the roofing mix, concentrated in the newer infill along Foothill Boulevard and a handful of commercial-to-residential conversions. Flat and low-slope sections fail differently than pitched roofs: standing water is the killer, followed by seam separation from the constant heat-cool cycle of an Inland Empire summer. If you’re seeing blisters, cracks at the parapet walls, or water staining on the ceiling beneath a flat section, the membrane has likely reached the end of its service life.
Built-Up and Membrane Systems
For Montclair homes with true flat sections, we typically install modified bitumen or TPO systems, depending on what the roof deck can handle and how much sun the surface catches. A flat roof replacement on a residential addition or carport runs $8,000 to $14,000 in this market. The variables are insulation condition, whether the deck has rotted under pooled water, and how much flashing detail the roof edge and penetrations require. We carry materials for flat work from our Fontana yard, so the drive time to Montclair doesn’t add a markup.
Low-Slope Roof Transitions
A lot of the modern infill in Montclair uses a mixed system: flat sections over a rear addition or patio, tying into a pitched gable over the main house. Those transitions are where leaks always show up first. We’ve reworked valley-to-membrane connections on homes along Foothill Boulevard where the original contractor never installed proper crickets or saddles. When we replace a flat roof, the tie-in details get as much attention as the membrane itself. That’s the difference between a roof that lasts twelve years and one that fails in five.
Trusted Brands We Service in Montclair
We stock and install roofing from GAF, CertainTeed, and Owens Corning, and we can source materials from IKO, Atlas, Tamko, and Boral when the job calls for it. Because we’re not a single-brand dealer, we can put a GAF architectural shingle on one Montclair home and a CertainTeed premium shake-look on another, depending on what that roof actually needs. Parts for common repairs and replacements in the 91763 area are usually in our Fontana warehouse same week. That means fewer delays and less time with a torn-off roof waiting for materials. Seven brands, one honest recommendation.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Replacement Problems We See in Montclair Homes
- Third-layer overlays that hide failed underlayment and rotten decking. Many Montclair homes had a second layer added in the 1990s, and code now forbids a third. We open the roof and often find the underlayment beneath those overlays has turned to dust, and the skip sheathing below has started to rot.
- Santa Ana wind damage to ridge caps and flashing. In fall, those dry northeast gusts get under the ridge caps on original wood-shake roofs and peel them loose. The roof might look fine from the street, but water has been getting under the shingles for weeks before you notice the ceiling stain.
- Attic heat cooking shingle adhesives from below. Montclair attics routinely pass 140°F in July and August. That heat bakes the underside of the shingle, breaking down the sealant strip and shortening the roof’s effective life by years compared to coastal installations.
- Rotten decking discovered only after tear-off. We’ve opened roofs in the Monte Vista corridor where the decking looked fine from the attic but crumbled at the fasteners once the old material came off. This is the single biggest reason a replacement quote changes, and it’s also why we write decking allowances into every contract.
Pricing for Roof Replacement in Montclair, CA
A full tear-off and architectural shingle replacement on a standard 1,200 to 1,800 square foot Montclair home runs $11,000 to $16,500. If you’re going with concrete tile, budget $18,000 to $24,000. Flat or low-slope sections run $8,000 to $14,000 on the residential scale. What moves those numbers: decking condition, roof pitch, number of layers being removed, and whether we need to upgrade ventilation to meet current code. Every quote we write in Montclair includes a line-item allowance for decking and framing repairs, so if we find rot after the tear-off, you already know the per-sheet cost and you approve the work before we proceed. Call (855) 382-1073 to schedule a free estimate.
Because Montclair code no longer permits a third layer of roofing, many 1960s wood-shake roofs in the 91763 tract neighborhoods now require full tear-off, even when the deck appears intact from below. A homeowner sees a roof that still sheds water and assumes a third overlay over failing materials will get them another decade. It won’t. City inspectors won’t sign off on it, and honestly, neither should you. Once we pull the old layers, we frequently find skip sheathing that has dry-rotted from decades of trapped heat between layers, especially in homes where an ice and water shield was never properly installed at the valleys. On a 1962 tract home near Foothill Boulevard and Monte Vista Avenue, we opened up a roof carrying two prior overlays and found exactly that: original skip sheathing rotted through in a half dozen places, the valley metal corroded, and the deck soft enough to sink a screwdriver into by hand. After a full tear-off and redecking, we installed GAF architectural shingles with new ridge vent and drip edge, and the homeowner approved the decking repairs upfront because our written allowance schedule had already priced every sheet. That’s how a $14,000 quote became a $16,200 job instead of a surprise change order, and the client knew the math before we ever cut the first shingle.
We Also Serve Cities Near Montclair
Our crews run replacement jobs throughout Claremont, Ontario, Upland, and La Verne, and the same inspection-first approach applies everywhere we work. If you’re in the Montclair area and want a straight assessment of your roof’s remaining life, start with our Roof Replacement in Montclair page for local specifics, then call us for the on-site look.
Serving Montclair, CA — Our Local Coverage Area
We’re based in the Montclair area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs About Roof Replacement in Montclair
No, not if you already have two layers. Montclair code caps roof coverings at two layers, and many 1960s-era homes already carry two. If your roof has one layer and the existing shingles are sound, a single overlay might be possible, but we rarely recommend it in this climate. The Inland Empire heat traps moisture between layers and shortens the life of the new shingles. If your roof already has two, the city requires a full tear-off, and we’ll handle every step of it. Call (855) 382-1073 if you’re not sure how many layers are up there – we’ll check.
A square is 100 square feet of roof surface, and a standard 1,400 square foot Montclair ranch home typically has 14 to 18 squares of roof area once you account for pitch and overhangs. Our quotes break down materials and labor per square. If a quote from another contractor only gives a lump sum, ask for the square count. That’s the fastest way to compare apples to apples. Call (855) 382-1073 and we’ll calculate the exact square count for your roof during the estimate.
We write a decking allowance into every Montclair replacement contract before we start. The allowance establishes a per-sheet price for plywood or OSB replacement, and it’s the maximum number of sheets we anticipate based on what we saw during the inspection. If we open the roof and find more rot than expected, we photograph it, show you the condition, and get written approval before we replace anything beyond the allowance. You’ll never get a surprise invoice at the end. Call (855) 382-1073 and ask Ruben to walk you through how the allowance works for your specific roof.
Montclair sits in the Inland Empire heat zone where attic temperatures routinely exceed 140°F in summer. That heat affects a new roof by accelerating shingle aging from the underside, degrading adhesives, and pushing moisture through any weak spot in the decking. A new roof should include upgraded ventilation: ridge vent, soffit vents, or a combination that lets that heat escape. We factor ventilation into every Montclair roof replacement, because skipping it is how you get a 15-year roof that fails in 10. Call (855) 382-1073 to talk through what your attic needs.
We install GAF, CertainTeed, and Owens Corning most often, and we can source IKO, Atlas, Tamko, and Boral when a specific product line makes sense. For Montclair’s heat and Santa Ana wind exposure, we usually recommend GAF Timberline or CertainTeed Landmark for a pitch roof, and we’ll explain why one fits your home better than the other. The recommendation comes from the home’s exposure, pitch, and your budget, not from a dealer agreement. Call (855) 382-1073 and we’ll show you samples and line-item pricing for all of them.
Written by Ruben Calloway, Owner at Barnwood Roofing, serving Montclair and the surrounding Inland Empire communities. For a free replacement estimate, call (855) 382-1073.