A home is a body. Its mechanical systems are its vital organs.
Plumbing and heating are its circulatory system. HVAC is its lungs. Like your health, the systems that keep a property alive last longer with regular, preventative care than with emergency repairs — and that is exactly how we work.
The foundation we build on.
How we show up.
Ready to protect what matters?
See how a tailored Care Plan keeps your property running — or book a service call today.
One team. Every mechanical system covered.
Whether it's a custom home or a commercial building, the right Leader team arrives with the right expertise.
Leader Home Services
Keeping the vital systems of your home healthy — from everyday comfort to custom-home specialists.
Leader Mechanical Services
Engineered reliability for buildings that can't afford downtime — predictable performance, optimized for uptime and cost.
Leader Home Services
Keeping the vital systems of your home healthy — from everyday comfort to the complex, integrated systems inside custom and estate homes.
Everything under your roof that moves water, heat and air — installed, serviced and maintained by technicians who treat your home like their own. Here's what each part of Leader Home Services covers.
Plumbing
From a dripping faucet to a full repipe, we keep water flowing where it should and nowhere it shouldn't. Our licensed plumbers handle everyday repairs, fixture upgrades and the hidden lines behind your walls with the same care.
Heating
Furnaces, boilers and radiant systems installed, serviced and tuned so your home stays comfortable through every Ontario winter — and runs efficiently while it does.
Air Conditioning
Central and ductless systems sized correctly, installed cleanly and maintained properly — so you get even cooling, lower bills and equipment that lasts.
Hydronics
Radiant floors, radiators and snowmelt systems balanced for even, quiet, efficient heat. Hydronics is a craft — and it's one of ours.
Maintenance Plans
A plan built around your home's actual systems keeps everything running and catches small issues before they become expensive ones — with priority service and member pricing. See Care Plans →
Luxury Home Specialists
High-end homes have complex, integrated systems that demand a higher standard of service. Our specialists understand them — and treat your home, and your time, accordingly.
Give your home the care it deserves.
Book a service call or build a tailored maintenance plan — same-day and 24/7 emergency service across the GTA.
Leader Mechanical Services
Engineered reliability for buildings that can't afford downtime — predictable performance, optimized for uptime and cost, backed by rapid response.
The mechanical systems that keep your building comfortable, compliant and running — maintained and repaired by a team that documents every visit and answers when something goes down. Here's what each part of Leader Mechanical Services covers.
Commercial HVAC
Rooftop units, chillers and air-handling systems maintained and repaired to keep your building comfortable and your operations running — with rapid response when something goes down.
Plumbing
Plumbing for buildings that can't afford a shutdown — installed and serviced to code, coordinated around your operations, and documented for your records.
Hydronics
Boiler plants, pumps and hydronic loops balanced and maintained so every floor gets consistent heat — without wasted energy or hot-and-cold complaints.
Preventative Maintenance
Scheduled, documented maintenance programs that reduce downtime, extend equipment life and turn surprise repairs into planned ones — with reporting you can hand straight to ownership.
Building Systems
From building automation and controls to the mechanical equipment they manage, we keep the moving parts of your building working together — and working well.
Energy Optimization
We identify the inefficiencies quietly draining your building's energy budget and fix them — with data behind every recommendation so the savings are real and measurable.
Keep your building running at its best.
Talk to us about a preventative maintenance program or emergency service — 24/7 response across the GTA.
Every system, under one roof.
Homes and commercial properties need different care. Choose your property type to see the services built for it.
For houses, estates & luxury homes — the systems that keep a household comfortable, safe and running.
Plumbing
- Repairs & fixtures
- Repiping & water lines
- Sump & sewage pumps
- Water heaters & tankless
- Leak detection
Heating & Cooling
- Furnaces & boilers
- Central air conditioning
- Hydronic & radiant heat
- Thermostats & smart controls
- Install & replacement
Water Filtration
- Whole-home treatment
- Softening systems
- Drinking-water filtration
- Water-quality testing
- Filter service
Emergency Drain 24/7
- 24/7 response
- Drain clearing
- Camera inspection
- Trenchless repair
- Preventative programs
Emergency Flood 24/7
- Rapid water extraction
- Structural drying
- Dehumidification
- Sump & backwater protection
- Insurance-claim assistance
Not sure what you need?
Tell us what's happening at home and our AI-assisted dispatch routes the right specialist to your door.
Talk to usFor offices, retail, plazas & multi-site facilities — building systems engineered for uptime and compliance.
Commercial HVAC
- Rooftop & make-up air units
- Building climate control
- Chillers & cooling towers
- Ventilation systems
- Install & retrofit
Commercial Plumbing
- High-volume systems
- Risers & fixtures
- Backflow & certification
- Domestic hot water
- Pumps & boosters
Hydronics & Building Systems
- Boiler plants
- Pumps & heat distribution
- System balancing
- Controls integration
- Building automation (BAS)
Preventative Maintenance
- Scheduled building programs
- Multi-system coverage
- Compliance testing
- Digital asset records
- Priority dispatch
Emergency & Drain 24/7
- 24/7 facility response
- Drain & grease-line service
- Flood & water extraction
- Camera inspection
- Front-of-line priority
Managing a property or portfolio?
Tell us about your building and our team scopes a preventative program built around your systems and budget.
Talk to usOne membership. Your whole property, maintained.
You’re either on the Leader Service maintenance program or you’re not — no tiers to compare, no packages to decode. We walk your property, scope the exact systems that need care, and set one straightforward price based on what you actually have.
Like your health, the systems that keep a property running last longer with regular care than with emergency repairs. Every visit is documented, so you always have a clear record of what’s been done — and what’s coming up.
Book a walkthroughHow it works
A Leader specialist sets your program in four steps — most start with a single walkthrough.
Two service windows a year — spring and fall — with every system serviced at its own correct interval, never a generic “two visits” schedule.
Compliance-driven maintenance on each device’s own schedule — TSSA, backflow and building mechanical, tracked to every due date.
Powered by technology.
Delivered by people.
The smart systems behind Leader Service exist for one reason — to get a real technician to your door faster, better prepared, and easier to deal with.
Faster when it counts
Your call gets answered and the right specialist routed to you quickly — with true emergencies pushed to the front of the line, day or night.
Technicians who arrive ready
Your property’s full service history and system details are in hand before they knock, so problems get solved right the first time — fewer repeat visits.
Straight answers, no upsell
Clear guidance on what your property actually needs — and what it doesn’t. You get an honest recommendation, not a sales pitch.
Pricing up front
Transparent quotes and approvals sent to your phone before any work begins. You know the price first — no surprise invoices.
Small issues caught early
We keep an eye on the health of your systems, so the little things get flagged and handled before they turn into an expensive emergency.
Your records, always handy
Every visit is documented digitally — what we checked, what we did, what’s next — so your service history is a tap away whenever you need it.
The technology stays behind the scenes. When it matters, a Leader technician — a real person you can reach — is the one at your door.
Terms of Use
Last updated September 10, 2026
These terms govern your use of the Leader Service website (ldrservice.com), operated by Leader Service Group Canada Inc. By using the site, you agree to them.
Information only
The content on this site is provided for general information. It is not professional advice and is not a binding quote or offer. Descriptions of services, pricing models and availability may change, and specific pricing and scope are provided in a written estimate after we assess your property.
No online payments or sales
We do not sell products or process payments through this website. Booking a service through the site is a request to be contacted — it does not create a contract. Any work we perform is governed by a separate written estimate and invoice, which set out the price, scope, warranty, and any cancellation or refund terms. Those documents, not this website, govern your purchase.
Intellectual property
The content, branding, logo, text and images on this site are owned by Leader Service Group Canada Inc. or used with permission, and may not be copied or reused without our written consent.
Accuracy and availability
We work to keep the site accurate and available, but we do not warrant that it is complete, current, or error-free, and we may change or remove content at any time.
Third-party links
The site may link to third-party websites we do not control. We are not responsible for their content or practices.
Limitation of liability
To the extent permitted by law, Leader Service is not liable for any indirect or consequential loss arising from your use of, or inability to use, this website. Nothing in these terms limits any liability that cannot be limited under applicable law.
Governing law
These terms are governed by the laws of the Province of Ontario and the federal laws of Canada that apply there.
Contact
Leader Service Group Canada Inc.132 Corstate Avenue, Unit 100, Concord, ON L4K 4X2
Phone: 905.264.1162
Email: info@ldrservice.com
Give your property the care it deserves.
Same-day and 24/7 emergency service across the Greater Toronto Area. Tell us what's happening — we'll take it from here.
905.264.1162 info@ldrservice.comPrivacy Policy
Last updated September 8, 2026
Leader Service (Leader Service Group Canada Inc.) respects your privacy. This policy explains what information we collect when you contact us, book service, or receive messages from us, how we use it, and the choices you have.
Information we collect
When you contact us or request service we collect your name, phone number, service address, email address, and details about the work you need. When you pay for service we collect billing information through our payment processor. When you agree to receive text messages we also collect your mobile number and a record of your consent.
How we use your information
We use your information to schedule and perform service, send appointment confirmations and reminders, dispatch and arrival notifications, quotes, approvals, invoices and payment links, follow up after service, administer maintenance plans, and — where you have separately agreed — send occasional promotions.
Text messaging (SMS/MMS)
What we collect
When you give us your mobile number and agree to receive text messages, we collect the number, a record of your consent (the date and time, the page it was given on, and the disclosure text you were shown), and the content and delivery status of messages exchanged with us.
How we use it
We use your mobile number to confirm and remind you about appointments, tell you when a technician is on the way, send quotes, approvals, invoices and payment links, follow up after service, notify you about maintenance plan renewals, and — where you have separately agreed to marketing messages — send occasional promotions.
Sharing
No mobile information will be shared with third parties or affiliates for marketing or promotional purposes. Text messaging originator opt-in data and consent are excluded from all other data sharing; this information will not be shared with any third parties. We use service providers to operate the program on our behalf — including our field service platform and our messaging carrier — and they may process your number only to deliver the messages we send, under contract, and for no other purpose. We do not sell your personal information.
Your right to opt out
You can stop receiving text messages at any time by replying STOP to any message from us. You will receive one confirmation message and nothing further. You may also call us at 905.264.1162 or email info@ldrservice.com to be removed. Opting out of text messages does not cancel a scheduled appointment or a maintenance plan, and does not stop us from contacting you by phone or email about work in progress.
Getting help
Reply HELP to any message, or contact us using the details below.
How long we keep it
We retain consent and opt-out records for as long as you remain a customer and for a period afterward as required to demonstrate compliance with telecommunications regulations.
Data retention & security
We keep your information for as long as needed to provide service and meet our legal and regulatory obligations, and we take reasonable measures to protect it.
Cookies and tracking
This website does not use advertising or analytics tracking cookies, and we do not sell or share your information with advertisers or data brokers. We use only the storage strictly necessary for the site to function. Because we do not use non-essential tracking, we do not display a cookie-consent banner.
Payments
We do not take payments through this website. Pricing, cancellation and refund terms for any service are set out in the written estimate and invoice we provide to you directly.
Contact us
Leader Service Group Canada Inc.132 Corstate Avenue, Unit 100, Concord, ON L4K 4X2
Phone: 905.264.1162
Email: info@ldrservice.com
Web: ldrservice.com
SMS Terms & Conditions
Last updated September 8, 2026
1. About this program
Leader Service (Leader Service Group Canada Inc., 132 Corstate Avenue, Unit 100, Concord, ON L4K 4X2) sends text messages to customers and prospective customers who have given us their mobile number and agreed to receive them. By opting in, you agree to these terms.
2. Messages you can expect
Appointment confirmations and reminders; technician dispatch and arrival notifications; quotes, estimates and approval requests; invoices, payment links and receipts; maintenance plan and membership renewal reminders; service follow-ups and review requests; emergency and after-hours service updates; and, if you have agreed to marketing messages, occasional promotions and seasonal offers.
3. Message frequency
Message frequency varies with your activity — typically two to five messages per scheduled appointment, and no more than four promotional messages per month.
4. Cost
Message and data rates may apply. Leader Service does not charge you for these messages; your mobile carrier’s standard messaging and data rates apply.
5. How to stop
Reply STOP to any message from us to unsubscribe. You will receive one confirmation message and no further texts. You may also call 905.264.1162 or email info@ldrservice.com. Opting out of text messages does not cancel a scheduled appointment or a maintenance plan, and we may still contact you by phone or email about work in progress.
6. How to get help
Reply HELP to any message for assistance, or contact us at 905.264.1162, info@ldrservice.com, or 132 Corstate Avenue, Unit 100, Concord, ON L4K 4X2. Customer care is available Monday to Friday, 8:00 a.m. to 6:00 p.m., with emergency service available 24/7.
7. Eligibility
You must be at least 18 years old and the account holder or an authorized user of the mobile number you provide. Tell us right away if that number changes or is no longer yours.
8. Consent is not a condition of purchase
You do not have to agree to receive text messages in order to book service, request a quote, or purchase any goods or services from Leader Service.
9. Carriers
Mobile carriers are not liable for delayed or undelivered messages. Delivery is subject to effective transmission by your carrier and is not guaranteed.
10. Changes to these terms
We may update these terms from time to time. The current version is always posted on this page, and the date above shows when it last changed.
11. Privacy
Your mobile number and consent record are handled as described in our Privacy Policy. No mobile information is shared with third parties or affiliates for marketing or promotional purposes.