Roof Repair and Replacement in Monrovia, CA

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Monrovia has one of the oldest housing stocks in the county, and old houses have roofs that were never designed for the materials now sitting on them. Most of the Craftsman houses here started life under wood shake.

What replaced that shake, and how well it was done, is usually the whole story on a Monrovia roof.

Roofing in Monrovia at a glance

A new roof in Monrovia runs $7,500 to $12,000 in asphalt shingle, $12,000 to $18,000 in metal and $15,000 to $25,000 or more in tile. Monrovia incorporated in 1887 and runs its own building department, so permits go to the city.

Old rooflines, newer coverings

Monrovia was established in 1886 and incorporated the following year, making it the fourth city incorporated in Los Angeles County. The heaviest concentration of pre-war housing sits north of Foothill Boulevard and west of Myrtle Avenue, taking in the Wildrose and North Encinitas areas, where most blocks were built out between 1888 and 1922.

Those houses present three recurring problems.

Shake conversions. A roof built for wood shake has spaced sheathing, meaning gaps between the boards, because shake needs to breathe from below. When shake was replaced with composition shingle, the correct job was to sheet over that spaced decking first. Where it was skipped, the shingles are fastened over gaps, the fixings hold poorly, and the roof telegraphs every board line.

Steep pitch and complex form. Craftsman roofs have low eaves, deep overhangs, dormers, porch roofs and multiple planes meeting at odd angles. Every junction is a flashing detail, and the labor on a roof like that is not comparable to a simple gable.

Deep overhangs that hide rot. Those wide eaves are the neighborhood’s signature and they conceal the rafter tails and fascia behind them. Water tracking back off a failed gutter can rot that timber for years before anything shows inside.

A Historic Preservation Advisory Committee was established in 1992, and in 2000 property owners voted a tax increase to buy hillside land and stop development up the slope. Check per address whether your property carries a historic designation, because that can affect what is required for a visible change of roof material or color.

Roofing services we provide in Monrovia

Re-sheeting over spaced shake decking before re-covering
Dormer, porch roof and multi-plane flashing on Craftsman rooflines
Rafter tail and fascia repair behind deep overhangs
Like-for-like replacement where a designation limits visible change
Full tear-off and replacement on steep-pitch roofs

Where the exterior needs work as well, our stucco and exterior crew handles it on the same schedule.

What a roof costs in Monrovia

Roof type	Typical range
Asphalt shingle	$7,500 to $12,000
Metal	$12,000 to $18,000
Tile	$15,000 to $25,000+

These are the ranges Modern Builders publishes for a new roof. Estimates depend on size, pitch and materials, and financing is available. For leak diagnosis and repair we do not publish a figure, because a number set from the ground is a number that changes once we are on the roof. You get a written estimate after the inspection.

Monrovia quotes move on two things a simple roof does not carry. If the deck is spaced shake sheathing, sheeting over it is an added cost that a quote from the ground will not have allowed for. And a steep, multi-plane Craftsman roof takes considerably more labor per square than a straightforward gable.

When a roof repair is the wrong purchase

We will tell you not to spend in three situations. If the previous covering went straight over spaced decking, patching the shingles repeats the original mistake and the roof needs sheeting properly. If the gutters and rafter tails behind the overhang are rotten, the roof covering is the smaller half of the job. And if a designation applies and you want to change material or color on a street-facing slope, we would rather flag the approval timeline early than take a deposit against it.

How the job runs

We check the deck first, from the attic where we can get into it, because on a pre-war Monrovia house the decking decides the scope more than the covering does. Then we walk the roof, with particular attention to dormer and porch junctions and to what is happening behind the overhangs. You get a written scope naming the city filing where one is needed. Tear-off is contained rather than dropped over the garden, and one crew stays with the job.

What customers say

Customer	Review	Source
Katrina T. Arcadia, CA	“I had nothing but the best experience with Modern Builders. They take a thorough look at all roofing matters during inspection to ensure that everything will be fixed and resolved! Their pricing is very reasonable / affordable. Bryan was great at communicating with me to set up the appointment needed! And, Javier was extremely kind & efficient when fixing our roofing needs. I would highly recommend this company for all your roofing needs”	Yelp
Charles D. Calistoga, CA	“Modern Builders had a good estimated quote and came when they said they would. the work was done well and the place was left tidy. We are having more work done to an old building that has consistently needed work to repair years of neglect. So far we have not been disappointed with the work, the work ethic of the crew and the way they left the place tidy and clean. I will recommend Modern Builders to whomever needs stucco and drywall repairs.”	Yelp
Julia K. Baldwin Park, CA	“Got a few quotes and I felt like Modern Builders was the way to go. Young and motivated entrepreneur. Bryan and his team came through with the replacement on my roof. Quality work and would definitely hire them again”	Yelp

Who does the work

Bryan runs the crew and is on site for the estimate and the roof inspection. The company has worked roofing, exterior stucco, siding and painting across the San Gabriel Valley and the foothills for over 25 years. Modern Builders holds California contractor license number 1079589, which you can look up on the CSLB website.

Frequently asked questions

Why does my roof show every board line?

Because it was almost certainly built for wood shake, which sits on spaced sheathing with gaps between the boards. If composition shingle went straight over that without sheeting first, the shingles have nothing continuous to lie on and the pattern telegraphs through.

Is that a problem or just cosmetic?

Both. Fixings hold poorly into gaps, so the roof is more vulnerable to wind uplift, and the uneven substrate wears the shingles unevenly. The fix is to sheet over the spaced decking properly before the new covering goes on.

Why are Craftsman roofs more expensive?

Steep pitch, dormers, porch roofs and multiple planes meeting at angles. Every junction is a flashing detail, and the labor per square is much higher than on a simple gable of the same area.

What is going on behind my deep overhangs?

Often more than you would like. Those overhangs hide the rafter tails and fascia, and water tracking back off a failed gutter rots that timber for years before anything appears inside the house.

Do I need permission to change my roof material?

If your property carries a historic designation and the change is visible from the street, quite possibly. Designation is set by address rather than neighborhood, so confirm yours with the city before planning a change of material or color.

Related services

Monrovia sits along the foothills. West along Foothill Boulevard we handle roofing in Arcadia. Northwest is roofing in Sierra Madre. East along the range sits roofing in Duarte. South we cover roofing in Temple City. For exterior wall work on the same property, see stucco in Monrovia. Our roofing services page covers how we approach the work generally.

WORKING TOGETHER

We Work With You to Come Up With the Best Solutions for your Challenges!

High Quality

We value our reputation, so we treat each job responsibly and achieve the highest possible results.

Warranty

Guarantees are provided for all types of work, as we are confident in the quality of services provided.

Individual Approach

We select solutions for our clients that best suits their budget and fufills their needs.

Transparent Prices

You’ll always know what you are paying for. Your estimate shows the cost of all work, without hidden fees.

Our Mission

Build things that last, quote them honestly, and leave the site cleaner than we found it.

Our Vision

No job too small or too large, and no client left guessing what happens next.

High Quality Monrovia Contractor Solutions For Residential Projects

Drywall Monrovia, CA

Holes, dents, water damage and full replacement. We patch, tape, texture and match the existing finish so the repair disappears.

Paint Monrovia, CA

Interior and exterior painting, including color matching on repaired areas so a patched wall does not announce itself.

Stucco Monrovia, CA

Crack repair, texture matching, and full re-stucco over sound existing walls or new lath. Softer mixes for older finishes.

Roofing Monrovia, CA

Leak diagnosis, storm damage, repair and full replacement, with the source of the water found before anything is sealed.

Contact Modern Builders Today!

Modern Builders has spent more than 25 years building and designing homes, schools, offices, and every other kind of structure our clients need. We handle the whole exterior, so you are not coordinating three trades, and the reason for every number goes in the written estimate. Working on your home in Monrovia? We also handle stucco work in Monrovia, drywall repair in Monrovia, and house painting in Monrovia. See our full roofing services across Pasadena and Los Angeles County.

Service Areas

Pasadena Area

San Marino Area

Sierra Madre Area

Altadena Area

Arcadia Area

Monrovia Area

Duarte Area

Temple City Area

San Gabriel Area

Rosemead Area

Alhambra Area

Glendale Area

Burbank Area

La Cañada Flintridge Area

Los Angeles Area

Central Los Angeles

Westside

Eastside

South LA

San Fernando Valley

Additional Cities and Suburbs

Lake Areas

Frequently Asked Questions

How much does roof repair cost in Monrovia?
It depends on the roof type, the extent of the damage, and materials. We inspect the Monrovia roof first and give a written quote before any work starts.

How do I know if my Monrovia roof needs repair or replacement?
Missing shingles, leaks, and daylight in the attic point to repair; widespread wear or age often means replacement. Our Monrovia inspection gives you an honest repair-or-replace answer.

How long does a roof job take in Monrovia?
Most repairs are a day or two; a full replacement on a typical Monrovia home is usually a few days, weather permitting.

Do you handle storm and leak damage in Monrovia?
Yes. We find the source of the leak, not just the stain, and repair the Monrovia roof so it holds through the next winter.