Some of our top rated foundation repair specialists in Thornhill, Ontario
Sort by:
- Get in touch
- Best of the Best 2025
- Best of Awards 2026
Trusted Toronto masonry experts since 1977, specializing in brick repair, stone masonry, chimney repair, and concrete restoration. With over 49 years of hands-on experience, we help homeowners protect, restore, and enhance their homes with quality workmanship that lasts. Serving Toronto & Surrounding Communities
- Get in touch
Sergio Assenza Construction (SAC) was founded in 2008. We are a family owned and operated business with over 90 years of combined experience. As certified OTAB stone masons we specialize in new builds, as well as niche restoration work. All SAC employees continuously improve their masonry skills and services by attending various workshops and trade shows across the province. We provide practical, economical and high-quality solutions to all our clients needs. Our company’s excellent reputation has been built over the years through client referrals and testimonials. This speaks to the above average services and satisfaction we provide. All SAC employees take pride in their masonry projects and look forward to working with you on all your home needs.
- Get in touch
- Best of the Best 2025
- Best of Awards 2025
WATERPROOFING Tired of mopping the water in your basement? Does your basement smell of mould and mildew? Is your foundation wall retaining water slowly and deteriorating? If the answer is yes to any of these questions, then the following will describe the reasons why, and how, to eliminate the problem. The cause of your basement's musty smell is because your foundation wall is retaining water, be it in the hollow block cavities or trapped behind the double brick or stone wall, as well as the water that is absorbed by the block, brick and stone. This combination causes the wall to produce mould, mildew and epharecense. The water trapped in the wall slowly deteriorates the wall, starting at the bottom.The water that makes its way into the basement through the wall and seems to cause us the most grief may not be the most concerning problem. The same problem will not occur with a solid poured concrete wall. The reason being you will find a defined crack in the solid wall that allows all the water to enter in, without retaining little, or any water.Regardless of which type of foundation you have, it can become watertight, mould and mildew-free by sealing your foundation from the OUTSIDE. With solid poured concrete foundations, you can inject the crack from the inside and the elements stay out.You must expose your foundation wall from grade level to 6" below the top of the footing. Then you must clean the wall thoroughly, exposing the deteriorated areas and cleaning all the dust and dirt from the wall. Then, restore any cracks or loose mortar joints with hydrolic cement. Cement coat the wall,Tar and install 6mm poly plastic on top. Once the wall is treated, install a 4" continuous weeping tile covered with 6 inches of 3/4" stone. Then back-fill the earth compacting at every foot. At grade level slope the earth, concrete, interlocking etc. away from the house.This method never fails. I have used this system over 13 years without fail. I have the references for you to refer to. We also have a photo album to take you step by step through the procedure.So, stop mopping! Relieve your allergies from mold and mildew and restore your foundation. When you do decide to restore your foundation do it the right way - from the outside. Remember, 40% of all my work is fixing other people's attempt to stop the water.
- Foundation Repair Specialist in Thornhill, OntarioGet in touch
DESIGN/ BUILD/RENOVATION With over 7 years of experience and a real focus on customer satisfaction, you can rely on us for your next design, renovation, or build. We provide a professional service for residential and commercial customers, which includes consultation, and free estimate. RENOVATION we are special at carpentry, insulation flooring, washroom, concrete, tiles, paint, drywall
- Get in touch
At The British Builder, we provide top-notch renovation, and painting services that are tailored to meet your unique needs and preferences. Whether you're looking to refresh your living space with a fresh coat of paint or completely transform your home with a full-scale renovation, The British Builder has the skills and expertise to get the job done right. With a commitment to transparency, timeliness, and customer satisfaction, we strive to make the renovation process as stress-free and enjoyable as possible. We work closely with you every step of the way to ensure that your vision for your home becomes a reality.
- Get in touch
Architectural Engineer with extensive experience in architectural design, structural detailing, technical drafting, and the preparation of precise construction drawings and blueprints. Proficient in construction coordination and project support, including scheduling, project tracking, quantity take-offs, cost estimating, and the development of high-quality plans, schematics, renderings, and technical details. Experienced in restoration plans, renovation, and adaptive reuse projects for historical and heritage buildings, with a strong understanding of building systems, construction processes, and regulatory requirements. Recognized for delivering accurate, detail-oriented design solutions while effectively collaborating with multidisciplinary teams, consultants, contractors, and clients.
- Get in touch
We specialize in concrete repairs, balcony restoration, waterproofing, epoxy and traffic coatings, caulking, railing installation, masonry repairs, and general construction services. Our team is committed to delivering high-quality workmanship, reliable service, and safe job-site practices on every project. We take pride in being honest, dependable, and detail-oriented. Whether you need a small repair or a large-scale restoration project, we work closely with our clients to ensure the job is completed on time, on budget, and to the highest standards.
- Foundation Repair Specialist in Thornhill, OntarioGet in touch
We are a licensed and insured General Contractor serving the Greater Toronto Area, specializing in custom home additions, extensions, and major structural renovations. Our team manages every stage of the project — from permit drawings, engineering, and design‑build planning, to full construction and final inspection. We deliver Ontario Building Code–compliant work, transparent communication, and reliable timelines. Whether you’re planning a second‑storey addition, rear extension, garage conversion, or a full home expansion, we provide high‑quality workmanship backed by a 2‑year labour warranty and 5‑year structural warranty. We take pride in building safe, durable, and beautiful spaces that add long‑term value to your home.
- Get in touch
Hi there, at Fabric contracting we take pride in our work and strive to go above and beyond for our clients! We’re fairly priced and put our heart and soul into every project we take on.
- Get in touch
CMM Renovation is a home improvement company that specializes in custom work and finishes. We specialize in kitchens, bathrooms, finished basements, and anything else you can think of! We are happy to discuss your next home improvement project with you. Kindly give us a call or text Jerry (Project Manager) at 647-936-3310
- Get in touch
I am a hardworking and reliable professional dedicated to delivering quality results on every project. I take pride in strong work ethic, clear communication, and ensuring every job is completed thoroughly and on time.
- Foundation Repair Specialist in Thornhill, OntarioGet in touch
Mr. Handyman is your full service residential and commercial renovation contractor serving the needs of Toronto homeowners. We specialize in residential and commercial maintenance, residential renovation, condominium improvements, and general contracting; no job is to small for us. Our expert project management staff and technicians are able to manage every …
- Get in touch
About BuildX Pro Renovation Inc. BuildX Pro Renovation is fully insured and WSIB covered, giving our clients peace of mind on every project. We are committed to professional workmanship, safety, and reliable service. Your home deserves more than just a renovation — it deserves quality work, careful attention, and a team you can trust. At BuildX Pro Renovation Inc., we provide professional renovation and home improvement services throughout Toronto and the GTA, helping homeowners transform their spaces with clean workmanship, thoughtful solutions, and attention to every detail. From a fresh coat of paint to a complete renovation, we approach every project with the same level of care and professionalism. Our services include: • Interior Painting & Drywall • Flooring Installation — Vinyl, Laminate & Engineered Flooring • Tile & Backsplash Installation • Bathroom Renovations • Kitchen Renovations & Installation • Basement Finishing • Stair Renovation & Refinishing • Framing & Interior Improvements • Baseboards, Trim & Finishing Work • Demolition & Removal • Complete Home Renovations Why homeowners choose BuildX Pro Renovation? We believe a great renovation is not only about how the finished project looks — it’s also about the experience along the way. That means clear communication, honest and detailed estimates, respect for your home, careful workmanship, and a clean job site from start to finish. Before beginning, we take the time to understand your goals and recommend practical solutions for your space and budget. During the project, we keep you informed and pay close attention to the details that make the difference between simply finishing a job and finishing it properly. And when the work is complete, we don’t just pack up and leave. We take care of the final touch-ups and cleanup so you can enjoy your newly renovated space. Whether you need one room refreshed or are planning a larger renovation, our goal is simple: Beautiful results. Quality workmanship. A home you’ll be proud of. Free on-site estimates are available throughout Toronto and the GTA. As a special offer, when you become a BuildX Pro customer, you will also receive our FREE 1-Year Home Care Services. For one full year, every 3 months, you can choose one complimentary home-care service based on what your home needs, such as: • Checking for possible leaks or water issues • Inspection of moulding, trim, and caulking areas • Bathroom/shower/bathtub silicone & caulking maintenance • General inspection of areas that may need minor attention You choose the service you need at each 3-month visit. 4 complimentary service visits over 1 year — completely FREE for our customers. We’d be happy to discuss your project and help bring your vision to life. BuildX Pro Renovation Inc. Quality work. Beautiful results.
- Get in touch
When working, we don't ask fortune tellers or God for advice on how to complete this or that task; we are professionals in our field.
- Get in touch
Boyes Landscape Construction is a family-run Toronto company with over 20 years of hands-on experience in complete property renovations and maintenance. We specialize in interlock installation and repair, masonry, decks, fences, garden beds, sod (natural and artificial), custom outdoor carpentry, and ongoing property maintenance. We also offer driveway safety bollards and winter services. We focus on solid craftsmanship, clear communication, and jobs done right the first time. Big or small, we treat every project like it’s our own home.
- Get in touch
For all Home Owners and Property Investors we provide Maintainance, Repair and Construction related services. While You're here CALL US now for: • SUMMER*** Sheds . Patio Covers . Planters . Backyard Spring Cleaning . Canopy . Lawncare. • FENCE + DECK + RAILING - Installation . Repairs . Staining. • RENOVATION Basement + KITCHEN + Laundry Rm + BATHROOM + Powder Rm. • REMODELLING Accent Walls . Doors . Trims/Casing . Base Boards . Wainscoting . Crown Molding. • DRYWALL Partion Wall Installation . Patching . Painting • FLOORING Staircase . Laminate + Eng. Hardwood . Tiling + Grouting . Backsplash. • PLUMBING Facuets and Blocked Drains . Toilets . Face Basin . Laundry Tubs . • INSTALLATIONS Over-Range-Microwave . Bathroom Fans . Ceiling Fixtures . Hood Fans . Countertops . Kitchen + Bathroom Accessories. • REMOVE AND REPLACE - Washer Dryer . Stove . Fridges . Cabinets .

