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Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roofing Company Across West Hollywood
Most roofing calls we get in West Hollywood are about one of two things: a flat roof leaking around rooftop HVAC units, or a homeowner who needs an honest price before committing to a repair or replacement. If you’re searching for a Roofing Company that knows this city’s roofs – the mid-century buildings along Santa Monica Boulevard, the courtyard apartments in the Norma Triangle, the hillside homes above Sunset – we’d like to help. Mercer Roofing Co Los Angeles serves West Hollywood with written pricing before any work begins, background-checked and photo-badged technicians, and a 365-day written guarantee on every repair. Call (213) 521-8272 for a free estimate.
Why Mercer Roofing Co Los Angeles Is West Hollywood’s Preferred Roofing Company
West Hollywood homeowners call us because we send a name and a photo before we arrive. You’ll know who’s walking up your driveway on Kings Road or Harper Avenue before they knock. Every technician wears a clean, marked uniform and presents a photo ID badge at the door. That’s the Threshold Verified standard, and it’s the same one applied across every Threshold Group location since 2000.
We’re not new to this city. Our crews work on flat roofs in the Norma Triangle, low-slope built-up roofs on commercial buildings near the Sunset Strip, and the occasional clay tile roof on a Spanish Colonial home off Doheny. We understand what West Hollywood’s design review board cares about. We know that a roof on a hillside lot gets hammered by sun and wind differently than one tucked into a dense courtyard complex. That local knowledge shapes how we quote, how we schedule, and how we warranty the work.
Grant Whitlock leads our Los Angeles team. He’s built the operation around a simple idea: homeowners deserve to know the exact price, the exact scope, and exactly who’s doing the work before anything is nailed down. That’s why every project starts with a written estimate, every repair includes a written guarantee, and a live person answers our phone 24/7 – not a voicemail tree.
Styles & brands we work with






Roof Maintenance in West Hollywood
Roof maintenance in West Hollywood isn’t optional. It’s the difference between catching a failed flashing around a rooftop HVAC unit in October and ripping out water-damaged drywall in February. Most maintenance visits in this city include clearing debris from drains and scuppers, checking all penetrations (vents, exhaust flues, satellite mounts, HVAC curbs), re-sealing suspect seams, and documenting the roof’s condition with photos so you have a baseline. A typical maintenance visit in West Hollywood runs $250 to $600 depending on roof size and how many penetrations need attention.
Flat Roof Inspection and Sealant Work
Your flat roof has dozens of penetrations: exhaust vents, plumbing stacks, electrical conduits, and the big one – rooftop HVAC units. Each penetration is sealed with flashing and sealant that degrades faster in West Hollywood’s intense sun than it would in a milder climate. Our maintenance crews inspect every penetration, re-seal anything cracked or pulling away, and flag issues before they leak.
Drain Cleaning and Waterproofing Check
Flat roofs fail at the drains first. When leaves and debris block a scupper or an internal drain, water ponds. Ponding water on a built-up roof accelerates membrane breakdown and eventually finds a seam. We clean drains, check for standing water, and verify that the roof’s slope still moves water toward the drains. It’s small work that prevents five-figure damage.
Roof Coating in West Hollywood
Roof coating in West Hollywood is one of the most cost-effective upgrades a flat-roof building owner can make, especially on buildings where the roof is visible from the street or from a neighbor’s deck. A properly applied reflective coating extends the life of an existing built-up or modified bitumen roof by reflecting UV, reducing surface temperature, and sealing hairline cracks before they become leaks. Typical roof coating in West Hollywood runs $3.50 to $6.00 per square foot depending on roof condition, number of penetrations, and whether we need to repair the underlying membrane first.
Reflective Coating for Flat Roofs
When we coat a flat roof in West Hollywood, we start by cleaning the surface and repairing any failed seams or flashings. Then we apply a reflective acrylic or silicone coating in a color that matches the existing roof – important when the roof is visible from the Sunset Strip or from a neighbor’s hillside home. The coating adds 10 to 15 years of service life when paired with regular maintenance.
Coating Around Rooftop Equipment
The most common failure point we fix during a coating job is around rooftop HVAC units. The original flashing on a 1950s or 1960s building was installed decades ago, and it’s probably cracked. We remove the old sealant, repair the flashing, and coat right up to the equipment curb. That’s where 90% of West Hollywood flat-roof leaks start.
Trusted Brands We Service in West Hollywood
We install and repair roofs using manufacturer-recognized shingle brands including GAF, CertainTeed, and Owens Corning. On flat and low-slope roofs, we work with modified bitumen and single-ply systems from the same manufacturers, which means the material warranties hold up when the manufacturer inspects the job. For West Hollywood customers, that matters: many older buildings in this city need roof work that satisfies both the design review board and the property insurer. We keep common flashings, sealants, and coating materials on hand for faster turnaround on repairs in dense neighborhoods like the Norma Triangle and the Avenues.
See the difference
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AfterCommon Roofing Problems We See in West Hollywood Homes
- Leaks at rooftop HVAC penetrations. Flat roofs here almost never leak in the field – the water comes in where an HVAC unit, exhaust vent, or plumbing stack pokes through the membrane. The original flashing from 1958 wasn’t built for 60 years of sun and rain.
- UV damage to built-up roofs. West Hollywood gets long, intense sun exposure. Built-up roofs with old gravel surfaces or exposed asphalt start to crack and alligator after 15 to 20 years, especially on south and west-facing roof sections.
- Ponding water on low-slope roofs. Older mid-century buildings in this city often have very low slopes. Once a roof settles, water stops draining and starts soaking into the membrane. Ponding water accelerates every other problem.
- Visible patches that don’t match. When a roofer uses the wrong color or material on a roof that’s visible from the Sunset Strip or a hillside neighbor’s window, it becomes a problem. We match the existing roof exactly, because we’ve seen the complaints that come from mismatched patches in this city.
Pricing for Roofing Company in West Hollywood, CA
Here’s what people in West Hollywood should expect to pay. Roof repairs typically run $350 to $1,200 depending on the scope – a single flashing repair around an HVAC unit is on the lower end; replacing a larger section of damaged membrane or decking is higher. Roof maintenance visits run $250 to $600. Roof coating for a typical flat roof runs $3.50 to $6.00 per square foot. Full roof replacement on a flat or low-slope roof in West Hollywood generally falls between $8 and $15 per square foot depending on roof condition, decking repairs, and the material you choose. You’ll get a written price before any work starts. Call (213) 521-8272 for a free estimate, and we’ll put the exact number in writing.
We Also Serve Cities Near West Hollywood
Our crews work throughout the Los Angeles basin. Beyond West Hollywood, we regularly serve North Hollywood, Burbank, Venice, and greater Los Angeles. If you’re on the edge of West Hollywood near the Los Angeles border, give us a call – we’ll let you know right away which crew covers your street.
Serving West Hollywood, CA - Our Local Coverage Area
We’re based in the West Hollywood 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 Roofing Company in West Hollywood
Because those penetrations are the roof’s weakest point. A 1950s or 1960s flat roof in this city was built with flashing that’s now brittle, cracked, or pulling away from the equipment curb. When winter rain hits, water follows the penetration down into the building – and by the time you see the stain on the ceiling, the leak has been active for a while. The fix is new flashing, ice and water shield around the penetration, and a fresh seal. Call (213) 521-8272 for an exact quote – estimates are free.
It may. West Hollywood has specific design standards for buildings visible from major corridors like the Sunset Strip, including requirements for material type, color match, and sometimes reflective coatings. We coordinate with the city’s review process, prepare submittal documents when needed, and make sure the finished roof matches the existing aesthetic. If your building has design review conditions, we’ll handle the paperwork and the installation together.
We inspect first, then write allowances into your contract. On older West Hollywood buildings – especially the 1920s to 1960s low-rise apartments – the wood decking under an old built-up roof is often water-damaged at the edges and around penetrations. Before we start, we tell you what the roof will likely need, and we price the decking replacement as a written allowance with a per-square-foot rate. If we open the roof and find more damage, you approve the additional cost in writing before we continue. No surprise change orders. That’s how we’ve done it since 2000.
One square equals 100 square feet of roof area. So a 2,000-square-foot flat roof is 20 squares. When you see a price quoted as “per square,” you can divide it by 100 to understand the per-square-foot cost. We itemize our West Hollywood quotes in plain language – total squares, material cost, labor, decking allowance, and any city-required items – so you’re never doing math in your head when you compare bids.
It usually is, if the underlying roof is still structurally sound. A reflective coating on a flat commercial roof in this city can extend the roof’s life by 10 to 15 years, lower cooling costs by reflecting UV, and seal minor cracks before they open into leaks. What it won’t do is fix structural problems or failed decking. During the inspection we’ll tell you honestly whether your roof is a coating candidate or a replacement. Call (213) 521-8272 to schedule a roof assessment – the inspection is free.
Written by Grant Whitlock, Owner at Mercer Roofing Co Los Angeles, serving West Hollywood.