Diamond Certified Company Report

JK Pro Roofing, Inc.

Diamond Certified Company Report

JK Pro Roofing, Inc.

Diamond certified ratings dashboard
CUSTOMER SATISFACTION i
Customer LOYALTY i
Helpful Expertise i
Company Credentials i
  • Workers Compensation
  • Liability Insurance
  • License Verification
  • Business Practices
  • Current Complaint File
  • Legal & Finance
Phone SURVEY RESPONSES FROM 118 VERIFIED CUSTOMERS i

Merle K.

VERIFIED JK Pro Roofing, Inc. CUSTOMER

1 of 118

Quality 10
10 10
Loyalty Yes
CRITIQUE

They're very trustworthy and their quality of work is very good. I've always worked with them and referred them to other people who have told me that they were also satisfied with them.

The fact that they're so dependable and the quality of their work is very good.

Stephan

VERIFIED JK Pro Roofing, Inc. CUSTOMER

2 of 118

Quality 9
9 10
Loyalty Yes
CRITIQUE

Reasonable price and good work

I have been working with James, the owner, for years and I like him.

Charles T.

VERIFIED JK Pro Roofing, Inc. CUSTOMER

3 of 118

Quality 9
9 10
Loyalty Yes
CRITIQUE

They are prompt and they finished the job as promised. I am satisfied.

They were prompt and they finished the job. They also took care to clean the surrounding area.

Read All 118 Survey Responses at Ratings View
Diamond certified VIDEO PROFILE
Diamond certified company PROFILE

JK Pro Roofing, Inc. installs, repairs and maintains roofs for residential and commercial clients in Marin, San Mateo, San Francisco, Alameda, Contra Costa, and Santa Clara Counties. The family-owned and operated company has the training and equipment to work on all types of roofing systems, from shingle to torch down, and it’s also qualified to handle reroofing projects, install skylights and light wells, and more.

Officer Sarah Wang says JK Pro Roofing’s personalized approach to roofing has been an important factor in its success. “About 80 percent of our clients are return customers, and that’s because we focus on developing personal relationships with them. James [Kang, owner] and Oliver [Aguirre, owner] are big parts of that—they take the time to answer each client’s questions and make sure they fully understand the process.”

JK Pro Roofing prioritizes communication throughout every step of its customers’ roofing projects, which Ms. Wang says is the key to achieving consistently positive results. “We’re very detailed when it comes to explaining how we install materials and perform certain tasks, and we even show our clients pictures and videos before work begins so they can get a sense of what we’re doing. They really appreciate our dedication to keeping them informed.”

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COMPANY REPORT NAVIGATION

Diamond Certified Companies are Rated Highest in Quality and Helpful Expertise.

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DIAMOND CERTIFIED RESEARCHED CAPABILITIES ON JK Pro Roofing, Inc.

COMPANY CONTACT
Service AREA

Marin County
San Mateo County
San Francisco County
Alameda County
Contra Costa County
Santa Clara County

SERVICES PERFORMED

Roof Installation, Repair & Maintenance
Reroofing
Torch Down Roofing Materials
Shingles
Skylight & Light Well Installation

BRANDS Supported
  • CertainTeed

DIAMOND CERTIFIED RESEARCHED ARTICLES ON JK Pro Roofing, Inc.

Two JK Pro Roofing technicians prepare to work on a roofing project.

Company Profile

JK Pro Roofing, Inc. installs, repairs and maintains roofs for residential and commercial clients in Marin, San Mateo, San Francisco, Alameda, Contra Costa, and Santa Clara Counties. The family-owned and operated company has the training and equipment to work on all types of roofing systems, from shingle to torch down, and it’s also qualified to handle reroofing projects, install skylights and light wells, and more.

Officer Sarah Wang says JK Pro Roofing’s personalized approach to roofing has been an important factor in its success. “About 80 percent of our clients are return customers, and that’s because we focus on developing personal relationships with them. James [Kang, owner] and Oliver [Aguirre, owner] are big parts of that—they take the time to answer each client’s questions and make sure they fully understand the process.”

JK Pro Roofing prioritizes communication throughout every step of its customers’ roofing projects, which Ms. Wang says is the key to achieving consistently positive results. “We’re very detailed when it comes to explaining how we install materials and perform certain tasks, and we even show our clients pictures and videos before work begins so they can get a sense of what we’re doing. They really appreciate our dedication to keeping them informed.”

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Company Philosophy

“We take pride in our excellent workmanship, competitive fees and ability to deliver outstanding results. Whether our clients need large-scale roof installations or minor repairs, we work hard to fulfill their needs and provide them with the best possible service.”

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Comparative Summary

Maintaining customer satisfaction is a crucial aspect of any business, but it’s even more important for roofing companies that have earned the prestigious Diamond Certified award. For JK Pro Roofing, Inc., keeping clients happy comes down to two main factors: clear communication and quality installations. “Our owners, James Kang and Oliver Aguirre, have more than 40 years of combined experience, so they know what it takes to ensure a job well-done,” says Officer Sarah Wang. “They give specific, honest answers to our clients’ questions and explain every step of their work, and that’s why we have so many return customers.”

JK Pro Roofing has been installing, repairing and maintaining roofs for residential and commercial clients in Marin, San Mateo, San Francisco, Alameda, Contra Costa, and Santa Clara Counties since 2012. The family-owned and operated company works on all types of roofing systems (including shingle and torch down), and it also has the training and equipment to handle reroofing projects, install skylights and light wells, and more.

Unlike less experienced roofing contractors that use cheap materials and cut corners on installations in an effort to reduce their operating costs, JK Pro Roofing offers its clients a better value by only using top-quality brands and industry-best installation methods. “We stand behind the products that we use and the work that we do,” affirms Ms. Wang. “Other companies may bid lower than us, but it’s always because they use inferior materials that we would never recommend. You really get what you pay for when it comes to roofing, so we make sure everything we do is built to last.”

To further differentiate itself from its competition, JK Pro Roofing offers a complete visual explanation of the “before, during and after” phases of its clients’ projects. “We understand that most of our clients don’t know much about roofing, so we take detailed photos of the final products and show them video footage of how we installed their roofs,” explains Ms. Wang. “That way, they can see that the work has been done correctly and to their total satisfaction, which puts them at ease.”

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Industry Info

When working with a roofing contractor, demand high-quality products and installation methods that can’t be bought from a big-box store.

Why is a new roof so expensive?” Roofing contractors hear that question all the time. The best contractors can explain why their bids might come in higher than other companies, but sometimes homeowners will still try to save money by hiring a cheaper contractor without considering long-term value.

Sarah Wang, officer at JK Pro Roofing, Inc. in Daly City, says this can be an expensive mistake that ends up causing a lot of problems. “When roofing companies have low bids, it’s usually because they’re using low-quality materials that anyone can buy at home improvement stores. A quality roofing contractor would never recommend these types of materials, especially if they want their work to last.”

In fact, while materials from big-box stores can lure in contractors because of the cheaper bulk pricing, they’re often thinner, they have a shorter life expectancy, there are limited color and sizing options, and they’re covered by less-protective warranties or no warranties at all. Also, many manufacturers have specific installation processes that contractors need to follow in order to ensure the product protects the home and the warranty remains valid. With products from chain hardware stores, installers rarely have the tools and expertise to get the installation techniques right. So, while it can be cheaper and easier for your contractor to get roofing products from a big-box store, it drastically reduces your options and the overall value of the job, which means your roof will likely need to be replaced much sooner than anticipated.

Ms. Wang says hiring a roofing contractor based on low price alone isn’t the smart way to go. “You really get what you pay for in this industry. If the job is cheap, it’s because the materials will wear out faster and cost you more when you inevitably have to replace them.”

Experts recommend carefully reviewing bids to determine which companies provide the best quality materials for the value (bids should include brand, line and other product details), asking your contractor to confirm the quality of the materials and making sure every product comes with a manufacturer’s warranty. It’s also smart to make sure the team is qualified to install the materials and follows the manufacturers’ directions so the warranties stay intact.

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Frequently Asked Questions

Q: Do I need a permit for my roofing project?

A: Yes. Any big construction project like a roof installation requires a building permit from your city or county, but we’ll help you with that process so you don’t have to worry about it.

Q: What are the differences between shingles and flat roof materials?

A: Flat roof material is also called torch down, and it’s for roofs that have a slope or pitch of less than 3 degrees. Shingles are usually installed on pitched roofs (anything above 4 degrees in slope).

Q: Why do roofs need plywood or sheathing?

A: Sheathing is the prime layer that needs to be installed before any roofing material goes on top. There are certain codes and standards that cities require, and a lot of sheathing isn’t up to code and existing sheathing can be damaged by dry rot or water. If that’s the case, we’ll need to install new sheathing before we can install any new roofing material.

Q: What is gravel stop flashing?

A: Gravel stop flashing is a type of flashing that’s applied to roof edges, especially on flat areas like roof overhangs over doors and windows. It’s a metal flashing with a bent edge that makes it stand up higher than the edge of the roof, and it stops gravel and water from falling off of the roof and onto people below.

Q: My roof is very high with no access point. Can you still help me?

A: Yes. We have a ladder that’s tall enough to reach a three-and-a-half-story building, and we have all the necessary gear to keep our crew members safe when they’re up that high.

Q: Will you be honest with me about whether my roof needs to be repaired or replaced?

A: Absolutely. Once we determine the condition of your roof, we’ll talk to you about your options. We think of everything from our clients’ point of view, so our ultimate goal is to save you time and money.

Q: Can I get a TPO roof on my home?

A: TPO is mostly used for the roofs of large warehouses, so we don’t recommend using it on a residential roof. It’s basically just nailed down, so if there’s a leak, you won’t know where it’s coming from because the roof isn’t made to be sealed. In a big warehouse with a flat roof, you can tell where leaks are coming from because they drip straight down, but with a residential roof, we’ll have to go through many layers to find the problem.

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SELECTED PHOTOS FROM JK Pro Roofing, Inc.

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DIAMOND CERTIFIED EXPERT CONTRIBUTOR ADVICE & TIPS FROM Oliver Aguirre

Expert CONTRIBUTOR PROFILE
  • Oliver Aguirre is owner of JK Pro Roofing, Inc., a Diamond Certified company. He can be reached at (415) 682-6057 or by email.

Oliver Aguirre: A Roof With a View

By James Florence, Diamond Certified Resource Reporter

DALY CITY — While in between jobs, Oliver Aguirre picked up some extra work doing roofing, unaware he was taking the first steps toward what would become a full-time career. “My wife’s uncle, James, needed some help at his roofing business, so I started working with him,” he recounts. “I started out as a helper, transporting materials back and forth for the roofers. I ended up working there for a couple of years and learning all about the roofing process. A while later, James was planning to retire but he wanted to keep the business in the family, so my sister-in-law, Sarah, and I made a proposal. I started working with him again, this time focusing on the business side—things like estimating, managing crews and dealing with customers. In early 2021, Sarah and I took over the company’s operations.”

Today, as owner of JK Pro Roofing, Inc., Oliver says his favorite part of his job is the scenery. “I love getting up on roofs because you get some really beautiful views when you’re up there. Especially if it’s facing the ocean or downtown San Francisco, it’s hard to beat the sights and scenery.”

A resident of Daly City (where he lives with his wife, Ella), Oliver spends his time outside of work on a variety of pastimes. “I go to the gym on a regular basis—that’s how I relax. I love to lift weights and stay in shape. I also enjoy watching anime and hanging out with Ella, our dog, and our two cats.”

In regard to a professional philosophy, Oliver references the age-old Golden Rule. “My main philosophy is treat others how you want to be treated, and that applies to everyone from my employees to my customers,” he explains. “Some customers have a million questions, and I know some company owners might get frustrated and tell them, ‘Don’t worry, leave everything to us.’ But I welcome questions because I want customers to feel comfortable with what’s happening. Roofing is a big investment, so I always put myself in their shoes and give them the kind of service I’d want to receive.”

When asked the first thing he’d do if he were to retire tomorrow, Oliver says he’d hit the gym. “I was a certified personal trainer a long time ago, so I might get back into that. Either way, I would spend more time at the gym, as well as do some more traveling.”

Ask Me Anything!

Q: If you could travel anywhere in the world, where would you go?
A: Tahiti. My wife has been wanting to go there.

Q: What’s your favorite anime show?
A: Dragon Ball Z.

Q: What’s your favorite local restaurant?
A: The Star on Grand in Oakland. I’m a big pizza guy and they have really great deep dish pizzas.

Q: What’s your favorite thing to do on a rainy day?
A: Open a bottle of wine and watch movies with my wife.

Q: Are you a cat person or a dog person?
A: A cat person.

Q: What was your favorite Halloween costume growing up?
A: When I was in my 20s, I dressed up as Mr. Incredible from “The Incredibles.”

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Expert articles
  • Assessing the Health of Your Roof

    DALY CITY — A roof needs to be inspected regularly to verify its condition and make sure it’s performing as it should be. While going up on top of the roof is a task best left to a professional, there are things you can look for from below the roofline that will alert you to potential problems. For example, you can look up at the ceiling—particularly around light fixtures and edges where the ceiling and the wall intersect. If you see any discoloration or bubbling paint, it might be time to get your roof checked out by a professional.

    Another thing to consider is the age of your roof. A typical roof should last for 20 to 30 years, but homeowners often lose track of how old their roofs actually are. If you notice rust on your gutters or roof air vents, that’s a sign that your roof may need to be replaced, so you should call a roofer for a more in-depth inspection.

    When meeting with a roofer, don’t be afraid to ask questions. Also, don’t settle for generic answers. If they say you need to replace your roof, ask about the specifics of what they found and why replacement is needed. The same goes for discussing an estimate for a new roof. Don’t let the contractor say, “Don’t worry, we’ll take care of it.” You should expect detailed answers to your questions, such as how long the process will take, what materials are going to be used and how much the project will cost in total. By asking the right questions and getting detailed answers, you’ll be able to make informed choices regarding your roofing project.

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Expert video tip
  • Video: Assessing Your Roof

    Complete Video Transcription

    DALY CITY — Oliver Aguirre: So, a lot of times, inside the house, what you want to do is just look around the ceiling and light fixtures or along the edge of the wall where the ceiling and the wall intersects. If you do see any kind of discolorations, little bubbling of the paint, it might be time to get your roof checked because that’s sometimes a sign that there’s a leak that’s happening. Don’t be afraid to step outside and look at your roof once in a while. If you do see your air vents, the gutters already starting to rust, that’s an indication of how long your roof has been up there for. A lot of times, in San Francisco and the Bay Area, the roofs are usually last about 20, 30 years.

    So, if you do see rust up there, call a roofer. When you do get an estimate, feel comfortable talking to the contractor. Ask questions. Don’t be afraid, don’t let the contractor just tell you, “Hey, don’t worry. We’ll take care of it. The rest is good.” Ask what materials is going to be used. How long will the process take? What to expect?

    A lot of people are kind of surprised of, actually, the amount of noise. And also, what happens during the reroofing process, especially when tearing off. A lot of times, they don’t expect all the noise, and also the debris coming down. So, ask questions. Don’t be afraid. Be part of the process. That way, you know exactly what’s going on with the roof and you’ll feel more comfortable with the whole, entire experience.

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JK Pro Roofing, Inc. WEBSITE AND EXTERNAL FEED
Diamond Certified RATINGS ON JK Pro Roofing, Inc.
Diamond certified ratings dashboard
CUSTOMER SATISFACTION i
Customer LOYALTY i
Helpful Expertise i

Each surveyed customer was asked, “If you needed any helpful expertise, did this company provide that expertise?” To calculate this score, total “Yes” responses were divided by total responses (excluding those that stated they hadn’t needed any expertise).

Company Credentials i
  • Workers Compensation
  • Liability Insurance
  • License Verification
  • Business Practices
  • Current Complaint File
  • Legal & Finance
Phone SURVEY RESPONSES FROM 118 VERIFIED CUSTOMERS i

Merle K.

VERIFIED JK Pro Roofing, Inc. CUSTOMER

1 of 118

Quality 10
10
Loyalty Yes
CRITIQUE

They're very trustworthy and their quality of work is very good. I've always worked with them and referred them to other people who have told me that they were also satisfied with them.

The fact that they're so dependable and the quality of their work is very good.

Ruben L.

VERIFIED JK Pro Roofing, Inc. CUSTOMER

2 of 118

Quality 10
10
Loyalty Yes
CRITIQUE

They are very experienced, knowledgeable, provide great service, and I highly recommend them. I have already referred them to several people, and they have great service.

Just the quality of their work because I have had inspectors come to inspect their work and they have complimented it.

Leon D.

VERIFIED JK Pro Roofing, Inc. CUSTOMER

3 of 118

Quality 10
10
Loyalty Yes
CRITIQUE

They know what they are doing.

They knew how to make the repairs that were needed. They understood the problem and they worked quickly and efficiently.

Cristina E.

VERIFIED JK Pro Roofing, Inc. CUSTOMER

4 of 118

Quality 10
10
Loyalty Yes
CRITIQUE

They're reliable.

They did the work on time and properly.

Marc C.

VERIFIED JK Pro Roofing, Inc. CUSTOMER

5 of 118

Quality 10
10
Loyalty Yes
CRITIQUE

They're the best roofers I've been in contact with so I'm very happy with them.

They are very good to work with. They do very good work.

Julie T.

VERIFIED JK Pro Roofing, Inc. CUSTOMER

6 of 118

Quality 10
10
Loyalty Yes
CRITIQUE

They're very reliable, nice and efficient. There's been no problems with our roof and it's been over a year already.

The price was reasonable. They were not asking for tons of money.

Nina T.

VERIFIED JK Pro Roofing, Inc. CUSTOMER

7 of 118

Quality 10
10
Loyalty Yes
CRITIQUE

They're reliable, have quality customer service, a quick response and fair pricing.

I like their response and just the care of customer service.

Joel M.

VERIFIED JK Pro Roofing, Inc. CUSTOMER

8 of 118

Quality 10
10
Loyalty Yes
CRITIQUE

Go to them quickly. They're the best, good quality, customer service, and they do business really well.

The people you talk to in customer service, they make you feel good about what they do and they make you feel special.

Peter H.

VERIFIED JK Pro Roofing, Inc. CUSTOMER

9 of 118

Quality 10
10
Loyalty Yes
CRITIQUE

They were reliable and did a good job.

I don't know.

Michael N.

VERIFIED JK Pro Roofing, Inc. CUSTOMER

10 of 118

Quality 10
10
Loyalty Yes
CRITIQUE

I would recommend them.

They were quick and reasonable.

Jim C.

VERIFIED JK Pro Roofing, Inc. CUSTOMER

11 of 118

Quality 10
10
Loyalty Yes
CRITIQUE

They are good, reliable and honest people.

Everything is good.

Michael K.

VERIFIED JK Pro Roofing, Inc. CUSTOMER

12 of 118

Quality 10
10
Loyalty Yes
CRITIQUE

Great roofers, they do good work.

They are good at what they do.

Jacob K.

VERIFIED JK Pro Roofing, Inc. CUSTOMER

13 of 118

Quality 10
10
Loyalty Yes
CRITIQUE

Good crew and good products

They do a solid job.

Rick R.

VERIFIED JK Pro Roofing, Inc. CUSTOMER

14 of 118

Quality 10
10
Loyalty Yes
CRITIQUE

They were fiine.

They have a good team.

Jennifer K.

VERIFIED JK Pro Roofing, Inc. CUSTOMER

15 of 118

Quality 10
10
Loyalty Yes
CRITIQUE

I trust them completely and always call them first.

I have used them for a long time, have a relationship with them, they always recommend high quality products and I appreciate that.

Sophia W.

VERIFIED JK Pro Roofing, Inc. CUSTOMER

16 of 118

Quality 10
10
Loyalty Yes
CRITIQUE

Use them.

Professional and respond quickly

Glenda F.

VERIFIED JK Pro Roofing, Inc. CUSTOMER

17 of 118

Quality 10
10
Loyalty Yes
CRITIQUE

Very professional and polite, they came in, did the job and left. When I had questions, they replied right away.

Whatever they offered me is exactly what I got. I am very happy with them.

Aaron S.

VERIFIED JK Pro Roofing, Inc. CUSTOMER

18 of 118

Quality 10
10
Loyalty Yes
CRITIQUE

Use them.

They do a good job.

Liz S.

VERIFIED JK Pro Roofing, Inc. CUSTOMER

19 of 118

Quality 10
10
Loyalty Yes
CRITIQUE

I would recommend them.

They are professional.

Jessica C.

VERIFIED JK Pro Roofing, Inc. CUSTOMER

20 of 118

Quality 10
10
Loyalty Yes
CRITIQUE

Very professional, they strive for perfection, so if you see anything, they will fix it.

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Read All 118 Survey Responses at Ratings View
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