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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon585
    Verified percolation testing services reviews

Find Percolation testing pros in Hillsborough

Avatar for Attic Pros

Attic Pros

4.91(
196
)
Approved Pro

Attic Pros

4.91(
196
)
Approved Pro
Super Service Award
Customers say: Super punctual
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
14 years of experience

Attic Pros provides outstanding products combined with superior service to ensure your satisfaction. Our team work's directly with you making sure we cover all areas that may have insulation issues. Once we've done this we can make a custom plan for property. Call Attic Pro Today for your professional consultation. *******5% Off Mold Removal Project******* For a limited time, we're excited to offer you a special discount of 5% off your mold removal project. Don't miss out on this opportunity to ensure a healthier environment for your home or business while saving money. Contact us today to schedule your mold inspection and take advantage of this exclusive offer!

"very professional and definitely work in the future ."

Mark H on January 2026

Attic Pros provides outstanding products combined with superior service to ensure your satisfaction. Our team work's directly with you making sure we cover all areas that may have insulation issues. Once we've done this we can make a custom plan for property. Call Attic Pro Today for your professional consultation. *******5% Off Mold Removal Project******* For a limited time, we're excited to offer you a special discount of 5% off your mold removal project. Don't miss out on this opportunity to ensure a healthier environment for your home or business while saving money. Contact us today to schedule your mold inspection and take advantage of this exclusive offer!

"very professional and definitely work in the future ."

Mark H on January 2026


"I've used Kenneth Asire Plumbing for several years now and I'm never disappointed. Kenneth's team provides top level service, they are always polite and professional. What I appreciate most is that they take the time to explain in detail what the problem is and what the solution is. I have hired Kenneth Asire Plumbing to do all sorts of jobs, from installing new fixtures to fixing leaks and clearing clogs. They have delivered 5-star work every time. "

Tina P on October 2025

We pride our company on reliability, great communication, integrity and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"I've used Kenneth Asire Plumbing for several years now and I'm never disappointed. Kenneth's team provides top level service, they are always polite and professional. What I appreciate most is that they take the time to explain in detail what the problem is and what the solution is. I have hired Kenneth Asire Plumbing to do all sorts of jobs, from installing new fixtures to fixing leaks and clearing clogs. They have delivered 5-star work every time. "

Tina P on October 2025


Avatar for Green Arrow Plumbing

Green Arrow Plumbing

5.00(
36
)
Approved Pro

Green Arrow Plumbing

5.00(
36
)
Approved Pro
Super Service Award
Customers say: True professional
1 years of experience
Free onsite estimate

Green Arrow Plumbing is known for delivering quality solutions for all residential plumbing needs. The ability to arrive, diagnose, and fix the issue all in one visit, while maintaining affordability, is what sets us apart. Green Arrow Plumbing is a family owned and operated company that services most of the Bay Area cities. We specialize in plumbing services, repairs, inspections, installations, drain cleaning, and more! We guarantee your satisfaction, and we won?t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"Rarely write reviews, but I had to take the time to recognize the incredible service I received from Green Arrow Plumbing. From start to finish, this was hands-down one of the best service experiences I’ve ever had! I originally called for a relatively simple job replacing a shower head but while they were here, I also mentioned a persistent issue with my main house drain being clogged. Without hesitation, they jumped into action and took care of both problems quickly, efficiently, and with zero mess left behind. They were punctual, professional, and friendly . They explained everything in simple terms, gave a fair and honest quote, and stuck to it. No upselling, no surprises just quality work done right the first time. If you need a reliable, honest, and highly skilled plumber I highly recommend Cornelio. I’ll definitely be calling them again for any future needs. Thank you for making what could have been a stressful situation completely stress free!"

Andrea S on August 2025

Green Arrow Plumbing is known for delivering quality solutions for all residential plumbing needs. The ability to arrive, diagnose, and fix the issue all in one visit, while maintaining affordability, is what sets us apart. Green Arrow Plumbing is a family owned and operated company that services most of the Bay Area cities. We specialize in plumbing services, repairs, inspections, installations, drain cleaning, and more! We guarantee your satisfaction, and we won?t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"Rarely write reviews, but I had to take the time to recognize the incredible service I received from Green Arrow Plumbing. From start to finish, this was hands-down one of the best service experiences I’ve ever had! I originally called for a relatively simple job replacing a shower head but while they were here, I also mentioned a persistent issue with my main house drain being clogged. Without hesitation, they jumped into action and took care of both problems quickly, efficiently, and with zero mess left behind. They were punctual, professional, and friendly . They explained everything in simple terms, gave a fair and honest quote, and stuck to it. No upselling, no surprises just quality work done right the first time. If you need a reliable, honest, and highly skilled plumber I highly recommend Cornelio. I’ll definitely be calling them again for any future needs. Thank you for making what could have been a stressful situation completely stress free!"

Andrea S on August 2025


"As a property manager I have doubt was many plumbing companies and I can say I can count on Jess plumbing. He is efficient, reliable and always has fair prices. You can count on him not to overprice because he's honest and knows what he's doing. "

Erica C on November 2025

Over 22 years experience in the plumbing industry servicing the peninsula. Jess Plumbing, established in 2019 by Jesus Coronel, provides excellent customer service and quality work Specializes in: Residential,Commercial & Underground

"As a property manager I have doubt was many plumbing companies and I can say I can count on Jess plumbing. He is efficient, reliable and always has fair prices. You can count on him not to overprice because he's honest and knows what he's doing. "

Erica C on November 2025


Avatar for Service Champions Heating & Air Conditioning

Service Champions Heating & Air Conditioning

4.64(
656
)
Approved Pro

Service Champions Heating & Air Conditioning

4.64(
656
)
Approved Pro
Super Service Award
Customers say: Super punctual
23 years of experience
Free onsite estimate

Service Champions is the leading heating and air conditioning contractor in Northern California servicing homeowners in East Bay, South Bay and Sacramento areas. We can make your home more comfortable and improve the quality of air you and your family breathe. We specialize in maintenance, repair and sales of all brands of air conditioners and heaters, and are experts in indoor air quality improvement through filtration, duct replacement, insulation and hospital grade UV lights. All the air conditioners we install have the new environmentally friendly refrigerant that does not damage the ozone. We also are huge proponents of super high efficient equipment, such as 95% efficient furnaces. This equipment saves homeowners a tremendous amount of money on their utility bills.

"They are prompt, honest. all tech people well knowledgeable and they follow all maintenance procedures step by step. I highly recommend. Them."

Jafar A on January 2026

Service Champions is the leading heating and air conditioning contractor in Northern California servicing homeowners in East Bay, South Bay and Sacramento areas. We can make your home more comfortable and improve the quality of air you and your family breathe. We specialize in maintenance, repair and sales of all brands of air conditioners and heaters, and are experts in indoor air quality improvement through filtration, duct replacement, insulation and hospital grade UV lights. All the air conditioners we install have the new environmentally friendly refrigerant that does not damage the ozone. We also are huge proponents of super high efficient equipment, such as 95% efficient furnaces. This equipment saves homeowners a tremendous amount of money on their utility bills.

"They are prompt, honest. all tech people well knowledgeable and they follow all maintenance procedures step by step. I highly recommend. Them."

Jafar A on January 2026


"Friendly and efficient. Gave me good explanations of everything to do with septic tanks."

christopher b on December 2025

Here at Ryan;s Pumping Service we are a full service septic pumping company working with residential and commercial properties. No job is out of our wheelhouse and we pride ourselves on our professionalism and skillset.

"Friendly and efficient. Gave me good explanations of everything to do with septic tanks."

christopher b on December 2025


Avatar for Walls n Beyond Painting n Remodeling

Walls n Beyond Painting n Remodeling

4.96(
48
)
Approved Pro

Walls n Beyond Painting n Remodeling

4.96(
48
)
Approved Pro
Customers say: Super punctual
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
28 years of experience

A full-service, state-licensed, bonded, and insured residential and commercial painting company with 15 years of experience serving San Francisco. We specialize in residential and commercial interior painting, wallpaper removal, drywall repair, knockdown texture, comprehensive color consulting, faux finishes, specialty finishes, metal and wood decking, and epoxies. Walls n Beyond Painting Company brings extensive experience and a strong understanding of customer needs and expectations to your residential or commercial painting project. Our top priority as a painting company is customer satisfaction, and we guarantee it.

"The owner, Juan Ortiz bent over backwards to accommodate my schedule, my specs, my wishes. He was patient, professional, friendly and responded immediately when I tried to contact him. His crew was EXCELLENT. The arrived on time, everyday. They fixed things they weren't required to fix. They did a painstakingly beautiful job, and they cleaned up thoroughly. I recommend them enthusiastically and will definitely be using them again."

Maia K on September 2019

A full-service, state-licensed, bonded, and insured residential and commercial painting company with 15 years of experience serving San Francisco. We specialize in residential and commercial interior painting, wallpaper removal, drywall repair, knockdown texture, comprehensive color consulting, faux finishes, specialty finishes, metal and wood decking, and epoxies. Walls n Beyond Painting Company brings extensive experience and a strong understanding of customer needs and expectations to your residential or commercial painting project. Our top priority as a painting company is customer satisfaction, and we guarantee it.

"The owner, Juan Ortiz bent over backwards to accommodate my schedule, my specs, my wishes. He was patient, professional, friendly and responded immediately when I tried to contact him. His crew was EXCELLENT. The arrived on time, everyday. They fixed things they weren't required to fix. They did a painstakingly beautiful job, and they cleaned up thoroughly. I recommend them enthusiastically and will definitely be using them again."

Maia K on September 2019


Avatar for FDL PLUMBING INC

FDL PLUMBING INC

5.00(
15
)
Approved Pro

FDL PLUMBING INC

5.00(
15
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
Free onsite estimate

With sixteen 5star reviews on our Angi Leads profile, we’ve been helping homeowners with their everyday plumbing needs. Find our company’s profile on the Home Advisor site. Give us a call for your free estimate or consultation to give your the best solution and competitive prices. With over 25 years experience in the trade, from water heaters, tankless, drain cleanning, faucet leak repairs, faucet replacements, sewer cleanning/replacements, disposals, water filters, hot water dispensers and more.

"The service was exceptional. We highly recommend FDL plumbing. Gets the job done"

WilliamLeo L on September 2025

With sixteen 5star reviews on our Angi Leads profile, we’ve been helping homeowners with their everyday plumbing needs. Find our company’s profile on the Home Advisor site. Give us a call for your free estimate or consultation to give your the best solution and competitive prices. With over 25 years experience in the trade, from water heaters, tankless, drain cleanning, faucet leak repairs, faucet replacements, sewer cleanning/replacements, disposals, water filters, hot water dispensers and more.

"The service was exceptional. We highly recommend FDL plumbing. Gets the job done"

WilliamLeo L on September 2025


Avatar for JPC Rooter & Plumbing

JPC Rooter & Plumbing

4.82(
46
)
Approved Pro

JPC Rooter & Plumbing

4.82(
46
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
27 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"They did a number of things. Braced and restrapped water heater and ran copper line for pressure relief to outside. Unclogged master toilet and reseated. Bolted down second toilet. Reconnected clothes dryer vent. Repaired air gap/garbage disposal and drain line under kitchen sink, crawled under house and remove galvanized pipe straps and replaced with nylon pipe clamps. I was a contractor and used to do this work, o an very critical. They did an outstanding job. Went the extra mile several times. I was expecting a bill for a higher amount but they stuck with their estimate. I recommend them highly and would use them again!!"

cyril k on March 2022

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"They did a number of things. Braced and restrapped water heater and ran copper line for pressure relief to outside. Unclogged master toilet and reseated. Bolted down second toilet. Reconnected clothes dryer vent. Repaired air gap/garbage disposal and drain line under kitchen sink, crawled under house and remove galvanized pipe straps and replaced with nylon pipe clamps. I was a contractor and used to do this work, o an very critical. They did an outstanding job. Went the extra mile several times. I was expecting a bill for a higher amount but they stuck with their estimate. I recommend them highly and would use them again!!"

cyril k on March 2022


Avatar for Skytech Builders

Skytech Builders

5.00(
21
)
Approved Pro

Skytech Builders

5.00(
21
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
13 years of experience

Welcome to Sky Tech builders, a general professional construction company. Our Decades of experience in the construction and home improvement Industry will help you achieve all your dreams and have the home you always wanted. At Sky Tech we are not just general contractors, we are also homeowners. We know what it’s like to have a big home improvement project in front of you. But we also know the satisfaction of the finished job, enjoying a new, updated home that you created. That’s why we are dedicated to making it as easy as possible for you to get exactly what you are seeking. As a construction company we want to help each and any of our customers accomplish their dreams of a complete home renovation. Our mission is to give you the best quality products and customer service making you and us enjoy this mutual adventure. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule an estimate today!

"The Hall and Master Bathrooms were fully renovated with new cabinets, countertops, showers and fixtures. Leo from Skytech assisted me along the way with option choices and recommendations. The crew was exceptional in their workmanship and were very detail oriented and made sure to clean the area prior to departure each day. I have received multiple compliments on the finished bathrooms. I would highly recommend Skytech Builders to anyone considering renovations and Leo in particular."

Bob H on July 2025

Welcome to Sky Tech builders, a general professional construction company. Our Decades of experience in the construction and home improvement Industry will help you achieve all your dreams and have the home you always wanted. At Sky Tech we are not just general contractors, we are also homeowners. We know what it’s like to have a big home improvement project in front of you. But we also know the satisfaction of the finished job, enjoying a new, updated home that you created. That’s why we are dedicated to making it as easy as possible for you to get exactly what you are seeking. As a construction company we want to help each and any of our customers accomplish their dreams of a complete home renovation. Our mission is to give you the best quality products and customer service making you and us enjoy this mutual adventure. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out our services offered and call or click to schedule an estimate today!

"The Hall and Master Bathrooms were fully renovated with new cabinets, countertops, showers and fixtures. Leo from Skytech assisted me along the way with option choices and recommendations. The crew was exceptional in their workmanship and were very detail oriented and made sure to clean the area prior to departure each day. I have received multiple compliments on the finished bathrooms. I would highly recommend Skytech Builders to anyone considering renovations and Leo in particular."

Bob H on July 2025

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Percolation Tests questions, answered by experts

It is strongly advised not to touch or disturb asbestos-containing materials unless necessary. Asbestos fibers can be released into the air when the material is damaged or disturbed, posing serious health risks if inhaled. It is best to leave any handling of asbestos to trained professionals who can remove the asbestos safely.

Epoxying over asbestos tiles is generally considered a safe option when done correctly. Epoxy acts as a sealant, encapsulating the asbestos tiles and preventing the release of asbestos fibers into the air. The key is ensuring that the asbestos tiles are in good condition, firmly adhered to the substrate, and not damaged or deteriorating. This method is only appropriate for tiles that are undamaged and securely in place. If the asbestos tiles are already loose, damaged, or deteriorating, encapsulating them with epoxy may not be a sufficient solution, as it might not address the potential for ongoing asbestos exposure.

Asbestos was commonly used in cloth wiring, but not all types of cloth wiring contain it. The age, condition, and appearance of the wiring can provide clues as to whether asbestos is present or not, but the only way to know for sure if the wiring has asbestos is to have it tested.

Asbestos-containing materials are not easily affected by water and do not disintegrate or dissolve when exposed to it. However, porous materials can deteriorate due to water exposure, leading to the release of asbestos fibers into the air. The settling of asbestos fibers can also occur as water makes them heavy, which reduces the risk of airborne exposure, though future disturbance of the materials could cause risk. Wetting asbestos-containing materials does not constitute safe removal, and the proper handling and disposal of asbestos materials should be left to professionals.

While asbestos can’t be directly absorbed through the skin—the fibers are too big—skin contact can still produce symptoms. Contact dermatitis can flare up in sensitive individuals but in most cases, the danger from asbestos comes from inhaling the fibers, or dust, that is produced when asbestos is disturbed. If you touch asbestos by accident, immediately wash yourself and your clothes.

The Hillsborough, CA homeowners’ guide to percolation testing services

From average costs to expert advice, get all the answers you need to get your job done.

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