Some of our top rated basement waterproofing specialists in Thornhill, Ontario
Sort by:
- Basement Waterproofing Specialist in Thornhill, OntarioGet in touch
🏗️ Welcome to Unity Mechanical Group— Your All-in-One Construction & Trades Group, we bring your vision to life with precision, reliability, and craftsmanship. As a full-service General Contracting company, we specialize in delivering seamless construction solutions—from ground-up builds to renovations and everything in between. But we don’t stop there. 💡 Electrical ❄️ HVAC 🚿 Plumbing We’re proud to offer expert-level services in HVAC, Electrical, and Plumbing, making us your one-stop shop for residential, commercial, and industrial projects. Whether it’s installing high-efficiency heating and cooling systems, wiring a new facility, or ensuring flawless plumbing infrastructure, our certified technicians and skilled tradespeople handle it all with unmatched professionalism. 🔧 Why Choose Us? • Licensed & insured professionals • Transparent pricing & timelines • Quality workmanship backed by warranties • Personalized service tailored to your project needs From blueprint to final inspection, we’re committed to excellence, safety, and customer satisfaction. Let us take the stress out of your next project—because when you work with Unity, you’re not just hiring a contractor, you’re partnering with a team that cares!
- Get in touch
Helix Home Supplies is a full-service renovation company capable of handling complete projects from A to Z. We manage every stage of the renovation process, including planning, material supply, demolition, framing, plumbing and electrical coordination, drywall, finishing, and final installation. Our team focuses on delivering high-quality workmanship, efficient project management, and reliable timelines for residential and commercial spaces. From small upgrades to full home renovations, we provide end-to-end solutions tailored to client needs with a strong commitment to durability and professional standards.
- Get in touch
Adda Construction has been in business for 20 years. We are a Maple based General contractor in the hardscape landscape feild. We specialise in interlocking, Excavation, Pool excavation install service, armourstone retainig walls, install garden or outdoor lighting,yard design, install swimming pools, installing ponds, sodding and grading, leveling or excavate soil, landscape curbing, winter services and snow removal..and much more. We also specialize in compact excavation and tranporters for higher with a professional operators. Our goal is to provide quality service, excellent workmanship to our customers. message us so we can assist you and arrange a quote for your project Our website is being upgraded,but you can see pics and Follow us on Intagram(Adda.b.o.y) and facebook(Adda Construction ltd) Thank you
- Get in touch
With over 10 years of experience, TrueCast Concrete delivers high-quality craftsmanship in custom steps, retaining walls, signage, and exterior concrete features. We focus on clean design, lasting results, and fair, transparent pricing. No surprises, just solid work! Customized Texture & Color: We specialize in tailored textures, stains, and finishes to match your project’s unique look — whether you're blending with natural stone or making a bold modern statement. What we do: 1. Landscaping Elements Functional + decorative outdoor precast built to last • Steps & stair sets • Garden borders & retaining blocks • Patio features (benches, fire pits, seating walls) • Custom planter boxes • Walkways & sidewalks 2. Walls & Facades Architectural panels that elevate any space • Textured cladding • Decorative wall panels • Copings, columns, window sills • Modern, rustic, and traditional finishes • Ideal for homes, businesses, and public spaces 3. Custom Signs & Monuments Bold, lasting impressions in concrete • Address plaques & house numbers • Business signs • Community / development entry monuments • Available in custom shapes, fonts, and colors
- Get in touch
We are a specialized concrete coatings company committed to delivering high-quality, long-lasting flooring solutions for residential and commercial spaces. With expertise in epoxy systems, full flake systems, metallic finishes, polished concrete, and concrete work, we provide tailored solutions that combine durability, performance, and visual appeal. Our approach is built on precision, proper surface preparation, and the use of premium materials to ensure every project meets the highest industry standards. Whether it’s a garage, basement, or commercial floor, we focus on creating surfaces that are not only aesthetically impressive but also resistant to wear, moisture, and daily use. We take pride in our reliability, attention to detail, and commitment to customer satisfaction. Every project is delivered with professionalism, clear communication, and a warranty that reflects our confidence in the quality of our work.
- Get in touch
have over 10 years of experience in tile installation, interlock, and general renovations. I’m reliable, hardworking, and detail-focused. 🔨 Services • Tile setting (floors, walls, bathrooms, backsplash) • Interlock driveways, walkways, patios • Tile setter • Concrete, drywall, and painting • Fence & deck work • Pool fill-ins • Interlock cleaning & sealing 📍 Where I Work Based in Toronto – I serve GTA areas including North York, Vaughan, Scarborough, Mississauga, and more. 🧰 Skills • Trained in interlock • Skilled with skip loader • WSIB & insurance available 💬 Why Hire Me? I take pride in quality work, fair pricing, and respect for your time and space. Your satisfaction is always my priority.
- Get in touch
Best of the Best 2025
Best of Awards 2025
Groundworks is Canada’s trusted choice for foundation repair, basement waterproofing, and concrete lifting. Proudly serving Toronto, Calgary, and, Edmonton we provide reliable solutions to protect your most valuable investment—your home. With industry-leading products, nationally backed warranties, and fully trained technicians, we specialize in foundation repair, basement waterproofing, crawl space encapsulation, concrete repair, and radon mitigation. Our commitment to quality and personalized service ensures your home is safe, secure, and built to last. Call Groundworks today for your Free Inspection!
- Get in touch
Concrete is the basic building block of modern life. If you want to build something in this modern world you need concrete. And for that, you need Fammpa, your concrete family. We are committed to delivering a finished product that is clean, concise and consistently high quality. We value our clients and consider communication a key component to building our continuously growing family. . (MPa) is a measure of the compressive strength of concrete. One MPa is equal to one million pascals (Pa); as a pascal is one newton of force per square meter, a megapascal is one million newtons per square meter. The higher the MPa of concrete, the stronger the material will be, and the less likely it is to fail.
- Basement Waterproofing Specialist in Thornhill, OntarioGet in touch
The lionscape construction company maintains high standards of quality and productivity that satisfy the client in every project, always delivering and building with quality.
- Get in touch
LeakGuard delivers professional waterproofing, concrete, and exterior construction solutions for homeowners, property managers, developers, and builders. Whether you’re dealing with a leaky basement or a property needing maintenance, we make sure your investment stands the test of time. We offer long term warranties up to 25 years LeakGuard Services: Basement waterproofing Foundation cracks Mold removal & abatement Slab on grade concrete Retaining walls Interlocking
- Get in touch
Hi, I’m Ali — owner of Moon Renovation, serving the GTA. I’m detail-driven and focus on drywall (install, taping/mudding, repairs), interior painting, and flooring. Flooring expertise: hardwood (solid & engineered), herringbone & chevron patterns, parquet, vinyl/laminate plank, stairs & nosings, baseboards & transitions, subfloor prep/leveling, moisture barrier. Install methods: nail-down, glue-down, or floating. What you can expect: clean protected work areas, clear itemized quotes, on-time arrivals, and finishes I stand behind. Small jobs welcome—from a single drywall patch to a full apartment refresh. Serving the Greater Toronto Area with flexible scheduling (Mon–Sat, day or evening). message me on HomeStars for a free, no-obligation estimate. For electrical or plumbing, I coordinate with licensed trades when needed.
- Basement Waterproofing Specialist in Thornhill, OntarioGet in touch
- Best of the Best 2025
- Best of Awards 2026
Due to COVID-19 For our customers' safety, our plumbers are wearing Medical Masks, Medical Gloves, and have Disinfecting Spray with them. Our company is the most organized and professional in the GTA. We are proud new Canadians, working hard to promote the growth of our business. We specialize in Drain Installation and Repairs. We have quality machines to clear your drains as well as power flushing of your drains. We offer new technology drain relining without digging. We do all types of plumbing repairs including installation of new fixtures. We specialize in waterproofing, fixing leaky basements, and installation of new weeping tiles. We hope you will give us the opportunity to prove to you that we are a quality company.
- Get in touch
Northwind Concrete & Pools specializes in quality concrete work and custom pool installations. We take pride in delivering reliable craftsmanship, honest service, and lasting results for every project.
- Get in touch
Founded by Tyler Sheridan, Sheridan Built Ltd. carries forward a family legacy of hard work, integrity, and entrepreneurship spanning four generations. We provide professional renovation, carpentry, and general contracting services throughout the Greater Toronto Area, with a focus on quality workmanship, transparent communication, and customer satisfaction. Our goal is simple: deliver exceptional results and build lasting relationships with every client we serve.
- Get in touch
AA Excavation has a strong commitment to innovative design and construction quality. We achieve this through collaboration with industry leading engineers, suppliers, contractors and specialist consultants. If you need excavating services in Toronto performed on your property, AA Excavation is your best choice. With a wide range of excavation services experience over a number of years, our great team at AA Excavation the expertise and the ability to take on whatever project you need done.
- Get in touch
Hi, I’m Alex. I have a skilled crew experienced in many trades — from demolition, framing, drywall, plaster, and painting to finishing carpentry, welding, and plumbing. We handle a wide range of construction and renovation projects around the GTA, always focusing on quality, safety, and getting the job done right.
