Mercer Roofing roofing team

Roofers in Covina - Free Inspection, Itemized Written Quote

Free roof inspection with photos, then an itemized written price before anything is ordered. Installed by our own licensed crews and backed by a workmanship warranty.

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Every visit starts with

Free roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation

Your new roof for as low as $159/month*on approved credit; ask for current terms
Styles & brands we work with

Architectural shingles
Architectural shingles
Metal roofing
Metal roofing
Tile roofing
Tile roofing
GAF
GAF
Owens Corning
Owens Corning
Flat & low-slope
Flat & low-slope

Before & after – our own jobs

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Recent Project
Before - Full RestorationBeforeAfter - Full RestorationAfter
Full Restoration
Before - Complete UpgradeBeforeAfter - Complete UpgradeAfter
Complete Upgrade

Roofers in Covina, CA

Roofing work in Covina runs hotter and harder than in most of Los Angeles County. The San Gabriel Valley’s inland heat pocket pushes summer temperatures past 100°F, baking composition shingles years faster than manufacturer ratings suggest, while the city’s wave of 1950s – 1960s ranch homes hits replacement age all at once. We dispatch crews from our Los Angeles office and serve Covina directly, with background-checked, photo-badged technicians whose names and photos reach you before they arrive. Call (743) 200-8347 to schedule a free estimate with a written price before any work starts.

Call (743) 200-8347

Why Covina Homes Are Different

Covina sits in a pressure cooker of heat and age that reshapes every roofing decision. The San Gabriel Mountains trap summer air against the valley floor, where 100 – 108°F days are routine, 10 to 15 degrees above coastal LA. That trapped heat accelerates granule loss and shingle brittleness, so a “30-year” shingle often shows its age in 18 to 22 years here.

The housing stock compounds the problem. Low-pitch ranch-style tract homes dominate neighborhoods from downtown Covina to the newer eastern tracts, many built with 2:12 to 3:12 roof slopes that promote ponding and limit material choices. We regularly encounter homes carrying two layers of composition shingles, the California code maximum, which triggers mandatory full tear-off, deck inspection, and often sheathing replacement before any new roof goes on.

On older ranch streets near downtown, pulling off those double layers frequently reveals original 1×6 skip-sheathing boards rather than plywood. A proper re-roof means adding a full layer of OSB or plywood over that skip sheathing before any modern underlayment or shingles can be applied. That extra labor and material isn’t optional, and we build it into our written quotes upfront so Covina homeowners aren’t surprised mid-job.

The Santa Ana winds add another variable. Blowing east-northeast through the valley gap, gusts can lift improperly fastened ridge caps and flashing. We specify enhanced nail patterns and wind-resistance-rated materials on every Covina job, not as upsells, but as necessities.

Our Main Covina Services

Most Covina calls fall into three categories: stopping an active leak, replacing an aging roof, or finding a reliable crew for ongoing maintenance and inspections.

Roof Repair in Covina

Repair work here means tracking leaks through double-layer shingle stacks, replacing wind-lifted ridge caps on low-slope ranches, and sealing flashing around original 1960s chimneys that have settled differently than modern construction. We carry Roof Repair in Covina stock for same-day fixes on common shingle brands, and every repair comes with our written 365-Day Done Right Promise, including a free second visit if the fix fails.

Roof Repair in Covina

Roofing Company in Covina

As your Roofing Company in Covina, we handle inspections, maintenance programs, and the coordination of complex jobs from permit pull to final inspection. Our Threshold Verified technicians arrive with photo ID badges, and we send their names and photos ahead of every visit. Scheduling runs through our Los Angeles office with live phone answering 24/7.

Roofing Company in Covina

Roof Installation in Covina

New roof installation in Covina means accounting for skip-sheathing replacement, low-slope drainage solutions, and heat-resistant underlayment selection. We install Roof Installation in Covina using GAF, CertainTeed, Owens Corning, and IKO shingles with manufacturer-recognized installation methods. Every job starts with a written line-item price, and no work begins until you approve it.

Roof Installation in Covina
Need help today?Fast, friendly service and a no-obligation free estimate.

Call (743) 200-8347

What happens when you call

  1. 1
    A real person answersNo phone trees - you reach a local pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched.
  3. 3
    A background-checked tech heads outLicensed & insured, dispatched right away.
  4. 4
    You approve before work beginsNothing starts until you say go.

Brands We Service in Covina

We stock and install GAF, CertainTeed, Owens Corning, and IKO shingles with matching accessories, and we maintain supplier relationships that keep common colors and profiles available without multi-week delays. For full brand details, see our brands.

Pricing for Roofers in Covina, CA

Service Typical range in Covina
Minor shingle repair (1 – 3 shingles) $180 – $340
Flashing repair around chimney or vent $280 – $520
Partial ridge cap replacement $320 – $580
Skylight leak repair and reseal $380 – $720
Full roof inspection with written report $150 – $250
Complete tear-off and reroof, 1,200 sq ft ranch $9,500 – $14,000
Complete tear-off and reroof, 1,800 sq ft ranch $13,500 – $19,500
Skip-sheathing deck replacement (per sq ft) $4.50 – $7.50
Low-slope modified bitumen installation $7.50 – $12.00 per sq ft
Attic ventilation upgrade (ridge + soffit) $1,200 – $2,400

Three factors push Covina prices toward the higher end: double-layer tear-offs requiring full deck inspection, skip-sheathing replacement on pre-1970 homes, and enhanced wind-resistance specifications for Santa Ana exposure. We put every line item in writing before any work starts, and that written price does not change once the job begins.

Neighborhoods We Serve in Covina

Our crews work across Covina’s full residential footprint, from the original downtown ranch tracts to the eastern developments. Most Covina addresses fall within our standard next-available scheduling window.

  • Downtown Covina (historic ranch tracts, skip-sheathing common)
  • Charter Oak
  • Covina Hills
  • South Hills area (Covina portion)
  • Via Verde / Barranca vicinity

Service Area – Cities Near Covina

We serve Covina directly and coordinate neighboring work from our Los Angeles office. Homeowners in Azusa, CA, West Covina, CA, Baldwin Park, CA, and Glendora, CA can schedule the same Threshold Verified service with written upfront pricing and photo-badged technicians.

Serving Covina, CA - Our Local Coverage Area

We’re based in the Covina 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 Roofers in Covina

Ready to get started? Free estimates · Free in-home estimates response in Covina
Call (743) 200-8347

What happens when you call

  1. 1
    A real person answersNo phone trees - talk to a local roofing pro.
  2. 2
    You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
  3. 3
    We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
  4. 4
    You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.

What Covina Customers Say

★★★★★ 4.8 from 9+ reviews

"Great shingles and a clean install. Wish the cleanup had been done the same day, but they came back the next morning and finished it."

- Tasha G.

"Detailed written quote with the shingle line and warranty spelled out. No surprises at the end."

- Laura B.

"Honest inspection. He went up, took photos, and told me I had maybe five more years instead of selling a full replacement."

- Xavier L.

How It Works in Covina

Getting your roofing handled is simple and fast.

1

Call or Request a Free Estimate

Tell us about your roofing needs and we provide an upfront, transparent quote - no obligation, no hidden fees.

2

Licensed Technician Dispatched

A background-checked, certified technician arrives in Covina - typically within 30-60 minutes, with parts stocked on the truck.

3

Problem Solved, Guaranteed

We complete the job to your full satisfaction, backed by our warranty and 100% satisfaction guarantee.

Current Offers

Bring these savings to your next appointment.

Free On-Site Estimate & Written Quote

No obligation. We measure, price the job in writing, and the quote is yours to keep.

Expires Mar 31, 2027
Always

Written Price Before Any Work Starts

Expires Mar 31, 2027
Included

Written Guarantee on Every Repair

Expires Mar 31, 2027
Free

Free Second Visit if the Repair Fails

Expires Mar 31, 2027

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