JSO Associates

5.0 (5 reviews)

Plumbing, General Contractors, Masonry/Concrete

Open • 12:00 am - 12:00 AM (Next day)

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Services - JSO Associates

Balcony addition

Bathroom remodeling

Bathtub installation

76 More Services

Bathtub repair

Bedroom remodeling

Building additions

Common area remodeling

Construction design services

Deck construction

Deck design

Drain installation

Drain repair

Faucet installation

Faucet repair

Garage remodeling

Gas line installation

Hot water recirculation pump installation

Driveway construction or installation

Exterior wall construction

Interior wall construction

Retaining walls

Patio, porch, or terrace construction or installation

Walkway construction or installation

Kitchen remodeling

Landscaping building construction

Laundry room remodeling

Design services

Construction or installation

Masonry/concrete removal

Masonry/concrete repair

Masonry/concrete sealing

Masonry/concrete staining

Guest house or ADU construction

Detached garage construction

Manufactured home construction

Single-family home construction

New structure construction

Plumbing inspection

Plumbing installation or replacement

Plumbing repair

Pool installation

Remodeling

Exterior wall repair

Interior wall repair

Retaining wall repair

New room addition

Bathroom addition

Bedroom addition

Common area addition

New room design

Garage addition

Kitchen addition

Laundry room addition

Driveway sealing or resealing

Exterior wall sealing or resealing

Interior wall sealing or resealing

Retaining wall sealing or resealing

Patio, porch, or terrace sealing or resealing

Walkway sealing or resealing

Shower installation

Shower repair

Sink installation

Sink repair

Driveway staining or restaining

Exterior wall staining or restaining

Interior wall staining or restaining

Retaining wall staining or restaining

Patio, porch, or terrace staining or restaining

Walkway staining or restaining

Stairway addition

New story addition

New story design

Structural repair

Sump pump installation

Toilet installation

Toilet repair

Water heater installation

Water pipe installation

Water pipe repair

JSO Associates Photos

JSO Associates - Delta has some unique single level shower valves! - Plumbing Near Me - St Catharines, Ontario

JSO Associates - Thus is my first direct drain bathtub install - Plumbing Near Me - St Catharines, Ontario

JSO Associates - Delta Cartridge-just love experience - Plumbing Near Me - St Catharines, Ontario

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JSO Associates - Progress photo St.Catherines - Plumbing Near Me - St Catharines, Ontario

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Recommended Reviews - JSO Associates

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Janice Y.

Elite 26 All-Star

1568

782

5858

1 year ago

Thank you Joseph, for taking care of my slow-draining bathroom sink! He's incredibly responsive and communicative. Don't fret, if you're not onsite, he's still super responsive and kept me in the loop the whole way. I was also thinking since he was there he might as well snake the kitchen sink and other bathroom too for maintenance (just in case) but he told me it isn't necessary and he even gave me a warranty for those other sinks for a year, going above and beyond. The price is very reasonable too, and he's super accommodating. Joseph was also very timely (if not early) for the scheduled appointment. He's opening up his office in North York, but he does service clients across the city and maybe even St Catherines? (he told me he had some meetings there and was coming from there to fix my slow draining sink). Besides this small job, he told me he does construction projects and can provide a variety of home service quotes too. Another plus is he delivered the receipt promptly afterward. Highly recommend! read more

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ophelia c.

1 year ago

Joseph is the best, most responsive, and at short notice. The estimate was in the ballpark and fair! I highly recommend JSO! He covers North York and beyond. I called from Los Angeles to help my parents, and Joseph answered my call; he is the best. So Joseph did a fantastic job with his trusty and multi-talented assistant Dave! My mom loved them both! They did a stellar job quickly, cleanly, and professionally! read more

Business owner information

Joseph S.

"Thank you so much for your kind words! It was truly a pleasure…

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Dennis J.

1 year ago

Edit, updated my review: Spoke to Jospeh at 647-201-5805 and he said he can provide the service in my condo on Wednesday July 2nd at 9 am. There was some miscommunication so he could only come by 6 pm instead. At which point though, he was responsive and explained what would work and what wouldn't. He had all the mats ready to go and provided me with an invoice prior to starting the job. After finishing the job, he also fixed a kitchen faucet. He really did a great job and I value his work highly. read more

Business owner information

Joseph S.

I am having an issue with my phone it’s not ringing! You jumped the…

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Cindy

1 year ago

Joseph was super responsive. I had an emergency window leak during a snow storm. His partner Mike came the next day and fixed up everything. Left it all neat, educated me on what the issue was and took videos/pictures of the work/progress. Thank you!!! read more

JSO Associates - Finished patched up window - Plumbing Near Me - St Catharines, Ontario

JSO Associates - Work in progress - Plumbing Near Me - St Catharines, Ontario

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Juan C.

2 years ago

Joseph helped me with a bathtub plumbing problem, the fix was quick and effective for a fair price.

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More info about JSO Associates

104 Powerview Avenue
St Catharines, ON L2S 1X4
Canada
Directions
(437) 600-1846
Call Now
Visit Website
https://www.jsoassociatesinc.com

From the Business

Specialties

Specialties At JSO Associates Inc., we bring energy, precision, and vision to every project—specializing in bathroom and kitchen remodeling, plumbing, and full-scale residential and commercial construction. Our edge starts with sharp estimating and creative design—giving your project a clear roadmap, strong cost control, and smooth execution from day one. We proudly collaborate with our trusted architectural engineers to ensure every build is structurally sound, efficient, and beautifully aligned. From fixing leaks to complete transformations, we seamlessly coordinate plumbing, HVAC, electrical, and architectural elements—turning ideas into fully realized spaces. We also excel in concrete work, structural upgrades, and custom pool construction, delivering results that are not only durable but built to impress. Whether you’re upgrading a space or building something brand new, JSO Associates Inc. brings passion, coordination, and craftsmanship that truly stands out.

History

Established in 2021.

JSO is built on precision, vision, and accelerated growth through expert estimating, design, and architectural coordination. At its core is a strong foundation in accurate cost estimating, ensuring every project is planned with clarity, efficiency, and financial control from day one. This precision allows clients to move forward confidently, knowing their investment is backed by real numbers and practical execution. Beyond estimating, JSO integrates design and architectural insight into every project. From layout planning to system coordination, the company bridges the gap between concept and construction, aligning structure, function, and aesthetics seamlessly.! Led by Joseph Schiavello, JSO is continuously evolving—leveraging modern tools, field experience, and strategic partnerships to streamline workflows and accelerate delivery. The result is a company that doesn’t just build—but plans, designs, and executes with purpose—turning ideas into well-structured, high-performing spaces.

Meet the Business Owner: Joseph S.

Meet the Manager At JSO Associates Inc., I’m driven by a powerful belief—what I call Joseph Schiavello’s Omnipotence: the ability to rise, achieve, and create, no matter the challenges in front of you. Since 2011, I’ve faced life with a disability, but that has never defined me—it’s fueled me. I’ve continued to pursue my passion in the plumbing industry, proudly working as a Local 46 plumber since 2006. My journey was built on a strong foundation from my parents and shaped by mentorship from some incredible mechanical minds along the way. Through years of hands-on experience working with a wide range of companies and professionals, I’ve developed the skills, resilience, and perspective that power JSO today. Now, having completed my apprenticeship and preparing for my plumbing certification exam, I’m stepping into the next level—stronger, sharper, and more focused than ever. Thank you for stopping by. This is just the beginning.

More Info

Hours

K R S Concrete Construction

(1 review)

I had 3 quotes given to me and Kevin's was by far the best. Had some concrete work done on our…read moreside entrance for guests and now it looks very welcoming for our guests. Can only recommend his services!

From the owner: Quality concrete work at an affordable price.read more

James Ryan Masonry

(1 review)

I have had James complete 2 jobs for me. I cannot say how happy I am with both. Very…read moreprofessionally done. The parging on my garage foundation looks amazing. I would definitely hire him again. The type of work I received, price wise, was very reasonable.

From the owner: Experienced Brick & Stone Mason specializing in Full-Dimensional Stone, Natural Thin Stone Veneer,…read moreMasonry Heaters, Dry Stone Walling, Outdoor Fireplaces, Indoor Brick Ovens, Masonry Repairs & more. -- RED SEAL Certificate of Qualification -- DSWA UK Level 1 Certificate -- Member of the Masonry Heater Association -- WSIB & Liability Insurance -- Proudly serving Fort Erie and Area -- Free Estimates "When Quality Matters." Contact: 905-687-6277 Visit: www.jamesryanmasonry.ca

G&D Landscaping

(1 review)

They were prompt efficient and professional- great job.The quote was fast no surprises.read more

From the owner: Year-round property care. Weekly/bi-weekly lawn maintenance + garden care spring–fall, seasonal…read morecleanups, and winter snow service. St. Catharines + Niagara (45-min radius). Fast quotes.

Sunset Property Maintenance

(1 review)

Jake and his team did a wonderful job restoring our stone patio to like new condition. Great…read morecommunication on the project. Would highly recommend Sunset Property Maintenance.

From the owner: Looking for a reliable and effective property maintenance service provider in St. Catharines, ON?…read moreLook no further than our team! Sunset Property Maintenance's skilled professionals are dedicated to providing top-quality pressure washing solutions that deliver results. Whether you need driveway cleaning, deck cleaning, or concrete cleaning, we have the tools and expertise to get the job done right the first time.

Surface Masters

(2 reviews)

I am also a very recent victim of this Rick guy from Surface Masters Concrete. This guy is truly in…read morea Monkey Business. Very unprofessional and not really trustworthy to deal with it. Had a very bad experience with him about a driveway sealing in a friend's Niagara Falls property and for me to find out at the later stage that he was just a middle man and doesn't really have his own team to do the job ordered. He may tell you a reasonable quote in the beginning but could end you up paying more than you're supposed to. Lesson learned... Folks PLEASE BE CAREFUL with this guy.

Plain and simple the guy is a thief. Ask to see his business licence, insurance etc.....it doesnt…read moreexist. my wife is fighting cancer im fighting trachea malaccea and parkinsons........we gave him 4000.00 deposit and poof rick was gone. supposedly the business address he has not lived there in at least a year. he still uses this address in his fake advertisements, im unhappy he ripped me off, but im outraged he is ripping others of!!!!

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2 reviews that are not currently recommended

The reviews below are not factored into the business's overall star rating.

joseph s.

2 years ago

I am the proud owner of JSO Associates, my name is Joseph Schiavello and my partners Dylan and Tom are always delivering exceptional communication "I'm Joseph Schiavello, the proud owner of JSO Associates. Alongside my partners, Dylan and Tom, we excel in delivering exceptional communication and cost-effective solutions. We're committed to providing top-quality service while keeping our pricing exceptionally low. At JSO Associates, you can count on us for both outstanding results and great value." read more

Kimberly

2 years ago

I sent Joseph an email about an emergency flange repair. He was able to book me in right away. He arrived promptly at the appointed time, was able to have the repair done quickly. He quoted me a very fair price, and the job was completed very professionally. Joseph is an amazing plumber and very friendly! Thank you very much! read more