Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Before
After
Before
After
Before
AfterFast, Reliable Roof Installation Across Hemet
A full roof installation in Hemet typically runs $9,800 to $24,500 depending on the roofing system and the condition of the decking underneath. Most of our Hemet installations are completed in two to five working days once materials arrive, and we provide a written price before a single nail goes in. If you’re researching roof installation in Hemet, your biggest unknown is probably what’s hiding under the old roof, and that’s exactly what we’re built to handle. Call (743) 200-8347 and we’ll walk you through what your specific home needs.
We know Hemet roofs because we work on them every week. The San Jacinto Valley does things to roofing materials that coastal crews never see. That local knowledge changes how we spec an install from day one.
Why Mercer Roofing Is Hemet’s Preferred Roof Installation Company
Hemet homeowners call us because we solve the one problem most roofers ignore: the stranger-at-the-door risk. Before any technician arrives at your Hemet home, you receive their name and photo. They show up in a clean, marked uniform, and they present a photo ID badge at your door. Every Mercer technician is background-checked and identity-verified under the Threshold Verified standard. When Grant Whitlock sends a crew to a home off Florida Avenue or up near the Ramona Bowl, the homeowner knows exactly who is walking up the driveway.
We also put every price in writing before work starts. No allowances that balloon, no change orders that surprise you. The written price you approve is what you pay, whether we’re installing a TPO membrane on a manufactured home roof near San Jacinto Street or re-sheathing the deck on a 1980s tract house in West Hemet. Every installation carries our 365-Day Done Right Promise: if it’s not right within a year, we make it right.
Hemet homeowners regularly tell us the same thing: they’d rather know the real number up front than get a lowball and fight about it later. That’s how we’ve built our local reputation, one written quote at a time.
Roof Flashing Installation in Hemet
Roof Flashing Installation in Hemet is not a side note; it’s the difference between a roof that lasts 25 years and one that leaks through the valleys in three. Flashing is the metalwork that seals the places where water wants to get in: valleys, chimneys, vent pipes, skylights, and where roof planes meet walls. In Hemet, flashing takes a beating it doesn’t take in Temecula or Murrieta because the valley’s 100 mph Santa Ana gusts push water sideways against joints that gravity alone wouldn’t challenge.
A typical roof flashing installation in Hemet runs $450 to $1,800 for the flashing work alone when we’re already on the roof, and $1,200 to $4,500 when it’s a standalone project involving chimney or valley work. The range depends on how many penetrations your roof has and whether the existing flashing is copper, galvanized, or aluminum. We give you the exact number in writing before we order materials.
Valley and Chimney Flashing
Valleys carry more water than any other part of a Hemet roof during monsoon-season downpours. We use continuous metal valley flashing rather than woven shingles because wind-driven rain in the San Jacinto Valley overruns woven systems fast. Chimney flashing in Hemet aging tract homes often fails because the original step flashing was never re-sealed after the tile underlayment failed beneath it.
Pipe Boot and Vent Flashing
Rubber pipe boots crack from Hemet’s 108°F summers far sooner than manufacturers expect. We replace every exposed boot during a roof installation in Hemet, not just the ones that look worn, because a failed boot two years after a new roof goes on is a callback nobody wants. We use either lead or high-temp silicone boots rated for the valley’s thermal load.
TPO Roofing Installation in Hemet
TPO Roofing Installation in Hemet is most common on the city’s large inventory of manufactured homes and mobile home park roofs, which are low-slope and need a membrane system rather than shingles. TPO is a thermoplastic membrane that we heat-weld at the seams, creating a monolithic, waterproof surface that reflects heat instead of absorbing it. On a 108°F Hemet afternoon, a white TPO roof can keep the interior of a manufactured home noticeably cooler than a dark asphalt system.
TPO installation in Hemet typically runs $6,500 to $12,800 for a single-wide manufactured home and $9,500 to $18,400 for a double-wide, depending on whether the existing roof requires tear-off or the TPO goes over a prepared substrate. We also install TPO on low-slope additions and patio covers throughout Hemet where shingles simply won’t shed water fast enough.
Manufactured Home Roof-Overs
Many Hemet mobile home parks require roof-over systems rather than tear-offs because the original metal roof serves as the structural deck. We bond TPO directly to a clean metal surface, or to a layer of high-density cover board when the original roof is too thin. This approach is faster and quieter for park residents, and it means no exposed framing during the job.
Low-Slope Additions and Carports
Hemet’s 1970s and 1980s tract homes often have flat-roof additions or enclosed patios where a previous owner rolled on aluminum coating that’s now cracking. TPO gives those low-slope sections a heat-welded surface that laughs at the valley’s thermal cycling. We flash TPO into the adjacent pitched roof so water never finds the transition seam.
Trusted Brands We Service in Hemet
We install Roof Installation systems from GAF, Owens Corning, and Atlas, and we keep their Hemet-relevant product lines in our local supply rotation. What that means for you: when your install calls for a GAF StormGuard underlayment in the valleys or an Owens Corning architectural shingle rated to 130 mph, we’re not special-ordering it or substituting whatever’s on the truck. We spec by the manufacturer’s wind and thermal ratings for the San Jacinto Valley, then we install to those numbers. Hemet homeowners get the full manufacturer warranty because we nail to the wind spec, not just to the code minimum.
Common Roof Installation Problems We See in Hemet Homes
- Baked-brittle underlayment under concrete tile. On a 1980s tract home off Domenigoni Parkway, our crew tore off a failed concrete tile roof to find the original 30# felt underlayment baked brittle by the valley’s 175°F summer deck temps. It crumbled in our hands, and half the ridge caps were hand-loose after 15 years without re-bedding. That’s not neglect; it’s what Hemet’s thermal cycling does to felt underlayment over time.
- Wind-lifted tile and peeled starter strip. Santa Ana events in Hemet exceed what Temecula and Murrieta crews typically fasten for. Improperly nailed tile lifts on the next big wind event, and starter strips peel right off the eave line. We use higher nail counts and wind-rated adhesives as baseline on every Hemet install, not as an upgrade line item.
- Loose ridge caps on retiree-owned concrete tile roofs. West Hemet has entire streets where hand-loose ridge tiles are waiting for the next thermal cycle to fail. Fixed-income homeowners often let re-bedding and re-torching slide for a decade or more. When we install in these neighborhoods, we address the ridge as part of the job, not as a surprise add-on.
- Rotted decking hidden behind the old roof. Hemet’s older tract homes often have decking that’s been cooking under failed underlayment for years. Once we open up the roof, that’s what triggers a code upgrade conversation. We handle it with an inspection first, allowances written into the contract, and any surprise priced and approved in writing before we touch it.
Pricing for Roof Installation in Hemet, CA
Here’s what we tell Hemet homeowners at the kitchen table. A standard architectural shingle re-roof on a 1,600 to 2,200 square foot Hemet tract home runs $9,800 to $16,500 including tear-off, deck inspection, underlayment, and flashing. A concrete or clay tile roof on the same footprint runs $18,000 to $27,500 because tile weighs more, takes longer to install, and usually means upgraded underlayment and battens. TPO on a double-wide manufactured home runs $9,500 to $18,400. If we uncover rotted decking, that’s priced per sheet, in writing, before we proceed. Call (743) 200-8347 for a free estimate on your specific roof in Hemet.
We Also Serve Cities Near Hemet
Our crews work throughout the San Jacinto Valley and the surrounding Inland Empire communities. We serve homeowners in San Jacinto, Homeland, Nuevo, and Winchester, plus the broader Roof Installation in Hemet service area. If you’re nearby, call us, and we’ll schedule a time to walk your roof with you.
Serving Hemet, CA - Our Local Coverage Area
We’re based in the Hemet 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 Installation in Hemet
Hemet sits on the floor of the San Jacinto Valley, where radiant heat gets trapped and pushes roof-deck temperatures past 175°F in summer. That cooks the asphalt in your shingles, accelerating granule loss and shortening the life of materials rated for cooler coastal or high-desert loads. Your cousin’s Temecula roof doesn’t experience the same thermal ceiling. We spec Hemet installs with shingles and underlayments rated for the valley’s heat, not just for California code. Call (743) 200-8347 if you want us to look at what’s on your roof right now.
We inspect the deck before we price the job, and we write a per-sheet allowance for replacement into the contract so you know the number up front. If we open the roof and find more rot than the allowance covers, work stops, we show you photos, and we give you a written price for the additional decking before we touch a single board. No surprise invoices after the fact. Every change is priced and approved in writing first.
Yes, and it’s one of the main differences between a Hemet install and a Temecula install. We fasten tile with a higher nail count than standard and use wind-rated adhesives at the eaves and ridge, because the San Jacinto Valley funnels Santa Ana winds that regularly exceed what nearby lower-elevation cities see. The upgrade costs under half a percent of the total project and it’s built into our Hemet pricing, not added on as a line item.
If your roof is in West Hemet or along the Domenigoni Parkway corridor and it’s a 1980s or 1990s concrete tile roof, we expect to find ridge caps that are hand-loose, underlayment that has baked brittle, and some degree of decking rot at the penetrations. We also expect the tile itself to be reusable in many cases, because fired clay and concrete tiles often outlive two underlayment cycles. We’ll tell you what’s salvageable and what’s not before we quote the job.
Yes. Hemet has an unusually high concentration of manufactured homes and mobile home parks relative to most California cities, so TPO roof-overs and metal panel systems are a regular part of our work here. We heat-weld TPO seams for a monolithic waterproof surface, and we install metal panel systems on low-slope manufactured home roofs where the park requires a non-penetrating fastening system. If you’re in a Hemet mobile home park, call (743) 200-8347 and we’ll tell you what your park’s rules allow before you spend a dollar.
When you need a Roofing Company in Hemet, you want an exact number, a clear plan for what happens when we open the roof, and a technician you recognize at the door. That’s what Mercer Roofing does. Call (743) 200-8347 to schedule your free estimate, and we’ll walk your roof with you before you commit to anything.
Written by Grant Whitlock, Owner at Mercer Roofing, serving Hemet and the San Jacinto Valley since 2000.