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How to find, vet, pay, and manage subs so you can scale from 2 projects a year to 10+.
You can't grow a construction company doing every trade yourself. Subs are how you go from a two-man crew to a real builder.
Matt + Ryan doing everything yourselves = 2-3 garage suites per year, max. You're the bottleneck on every trade, every inspection, every punchlist item.
Matt + Ryan managing subs = 8-12 suites per year. You focus on sales, project management, and quality control. Subs do the physical work.
Calgary 2026 rate ranges for a typical 600-800 sq ft garage suite above an existing garage. These are sub costs to you — not what you charge the client.
| Trade | Cost Range | Notes | Find First? |
|---|---|---|---|
| Excavation & Foundation | $8K - $15K | Depends on existing garage foundation condition. May need underpinning. | Medium |
| Framing | $15K - $25K | $8-12/sq ft. This is your biggest trade cost. Structural engineer drawings required. | Find first |
| Roofing | $4K - $8K | Depends on pitch, material (asphalt vs metal). Include soffit/fascia. | Standard |
| Electrical | $8K - $15K | New 100A sub-panel minimum. Permits pulled by the electrician (their license). | Find first |
| Plumbing | $6K - $12K | Kitchen + bathroom rough-in. Stacking plumbing saves money. Permit by plumber. | Find first |
| HVAC | $5K - $10K | Mini-split heat pump is standard for suites. Ductless = cheaper install. | Medium |
| Insulation | $3K - $6K | R-20 walls, R-40 ceiling (Calgary code). Spray foam in roof deck if vaulted. | Standard |
| Drywall | $4K - $8K | Board, tape, mud, sand, prime. Level 4 finish standard. Level 5 if client wants. | Standard |
| Flooring | $3K - $7K | LVP is standard for rentals. Tile in bathroom. $4-8/sq ft installed. | Standard |
| Painting | $2K - $5K | 2 coats walls, 1 coat ceilings. Trim/doors separate. Easiest trade to find. | Standard |
| Finishing & Trim | $3K - $6K | Baseboards, casings, closet systems, cabinet install, hardware. Detail work. | Standard |
Framing, electrical, and plumbing are the hardest trades to find reliable subs for in Calgary right now. These are also the trades that hold up every other step. Start networking for these immediately — even before you have projects booked. Painting, flooring, and drywall crews are easier to find and more interchangeable.
Good subs don't advertise. They're booked. You find them through relationships, not Google.
Join "Calgary Trades & Construction," "Alberta Contractors Network," "YYC Renovation & Construction." Post what you're looking for. Be specific: "Looking for a framing crew for a 700 sq ft second-storey addition above an existing garage in Altadore. Steady work for the right crew." Vague posts get vague replies.
Talk to the guys at Windsor Plywood, EMCO (plumbing supply), Rexel (electrical supply). They see every contractor in the city. Ask them: "Who buys a lot of material and always pays on time?" That's your shortlist. Suppliers know who's legit.
Deck builders, basement renovators, fence companies — they all use framers, electricians, plumbers. They're not competing with you on garage suites. Buy them a coffee and ask who they use. Trades people share subs freely when you're not a direct competitor.
Post in the "Services" section. Also check who's advertising — some good small crews post there. It's a mixed bag, so vet harder on anyone you find this way. Red flags are more common here.
Never give a new sub your biggest project. Start them on something small: a bathroom rough-in, framing a single wall, a panel upgrade. See how they show up, communicate, and finish. One test job tells you more than ten references.
Get this wrong and you'll either lose good subs or get burned by bad ones. Here's how payment works in Alberta residential construction.
This is the standard structure for Alberta residential. Never pay everything upfront. Never.
Alberta's Builders' Lien Act requires a 10% holdback on all construction contracts. This is standard practice and every legitimate sub knows it. Hold the 10% for 45 days after substantial completion (the lien period). If a sub won't agree to a holdback, that's a red flag — they've either been burned before or plan to burn you.
Every builder has war stories. Here's what to watch for so you don't create your own.
The #1 problem with subs. They commit to a start date, then don't show up. Or they start, disappear for a week to work on another job, then come back. Prevention: Get start and end dates in writing. Include a per-day late penalty in your agreement ($100-200/day). And always — always — have a backup sub you can call for every critical trade.
"That wasn't in my price" is the most expensive sentence in construction. Prevention: Detailed written scope in every agreement. Reference the drawings. If something changes, it goes through a written change order with a price before the work happens. No verbal extras — ever.
Wrong fasteners, skipped backing, sloppy caulking, uneven framing. You won't catch it unless you inspect. Prevention: Walk the site daily. Take photos. Check work against code and drawings before it gets covered up. Once drywall goes up, you can't see what's behind it.
A sub says they have WCB and liability but their coverage lapsed three months ago. If someone gets hurt on your site, you're liable. Prevention: Get a current WCB clearance letter and certificate of insurance before they start every project. Not once — every time. Verify yearly at minimum. Call the insurer to confirm the policy is active.
If you don't pay a sub, they can file a lien on the homeowner's property. If a sub doesn't pay their supplier, the supplier can lien the property. The homeowner then comes after you. Prevention: Pay subs on time. Get lien waivers with each progress payment. Use the statutory holdback properly. If using a sub who buys their own materials, get statutory declarations confirming their suppliers are paid.
For every critical trade (framing, electrical, plumbing), maintain relationships with at least 2-3 subs. Not because you expect problems — because when problems happen (and they will), a backup sub is the difference between a one-week delay and a two-month delay. Keep your backup subs warm by giving them occasional small jobs.
A handshake deal works until it doesn't. Every sub gets a written agreement. Every single one, every single project.
Copy this, fill in the blanks, and use it for every sub on every project. Customize as needed.
SUBCONTRACTOR AGREEMENT Date: _______________ Project: Garage Suite — [Property Address], Calgary, AB BETWEEN: General Contractor: Ridgeline Renovations Ltd. Contact: Matt Ridgeline / Ryan Ridgeline Email: info@ridgelineprojects.com Phone: _______________ Subcontractor: _______________ Business Name: _______________ Contact: _______________ Phone: _______________ Email: _______________ GST #: _______________ WCB Account #: _______________ 1. SCOPE OF WORK The Subcontractor agrees to perform the following work: _______________________________________________ _______________________________________________ As per drawings: [Sheet references] dated [date]. Includes: _______________ Excludes: _______________ 2. CONTRACT PRICE Total: $_______________ [ ] Lump Sum [ ] Per sq ft @ $_____ x _____ sq ft [ ] Time & Materials @ $_____ /hr + materials at cost GST (5%): $_______________ Total with GST: $_______________ 3. PAYMENT SCHEDULE - 30% ($______) — Upon mobilization and material delivery - 30% ($______) — At rough-in completion / midpoint - 30% ($______) — At substantial completion and inspection - 10% ($______) — Holdback, released 45 days after completion and resolution of all deficiencies Payment terms: Net 14 days from invoice. Payment method: E-transfer to _______________ 4. TIMELINE Start date: _______________ Completion date: _______________ Key milestones: _______________ Late penalty: $_____ per calendar day past completion date. 5. INSURANCE & SAFETY Subcontractor shall maintain: - WCB coverage (provide clearance letter before start) - General liability insurance, minimum $2,000,000 - Valid business license if required by City of Calgary Subcontractor is responsible for their own safety program and compliance with OH&S regulations. 6. CHANGE ORDERS No changes to scope or price without a written Change Order signed by both parties. Verbal changes are not binding. Change Order must include revised price and timeline impact before work proceeds. 7. WARRANTY Subcontractor warrants all work for 12 months from date of substantial completion. Deficiencies must be corrected at Subcontractor's expense within 14 days of written notice. 8. GENERAL TERMS - Subcontractor is an independent contractor, not an employee of Ridgeline Renovations. - Subcontractor shall maintain a clean and safe work area and remove all debris daily. - Subcontractor shall comply with all applicable building codes, bylaws, and permit conditions. - Subcontractor shall not assign or subcontract any portion of this work without written consent. - Either party may terminate with 7 days written notice. Payment for completed work will be made per the payment schedule above. - Disputes shall be resolved through mediation before litigation. Governed by the laws of Alberta. AGREED: Ridgeline Renovations: _______________ Date: _________ Print Name: _______________ Subcontractor: _______________ Date: _________ Print Name: _______________
Use this whenever the scope changes. No verbal extras. Ever.
CHANGE ORDER #_____ Project: Garage Suite — [Property Address] Date: _______________ Original Agreement Date: _______________ Subcontractor: _______________ CHANGE DESCRIPTION: _______________________________________________ _______________________________________________ Reason for change: [ ] Client request [ ] Site condition [ ] Design change [ ] Code requirement COST IMPACT: Additional cost: $_______________ Credit: $_______________ Net change: $_______________ Revised contract total: $_______________ SCHEDULE IMPACT: Additional days required: _____ Revised completion date: _______________ APPROVED: Ridgeline Renovations: _______________ Date: _________ Subcontractor: _______________ Date: _________
For each subcontractor, maintain a folder (digital or physical) with: signed agreement, WCB clearance letter, insurance certificate, all invoices, all change orders, progress photos of their work, and any correspondence about deficiencies. When things go wrong, paper wins.
You don't need expensive software on day one. But you need a system. Here are your options from free to full-featured.
This costs $0 and works for your first 5-10 projects.
One master sheet per project: sub name, trade, contract amount, payment milestones, amounts paid, amounts owing, insurance expiry dates. Share it between Matt and Ryan. This is your command center until you outgrow it.
Folder structure: Projects > [Address] > Subs > [Company Name] > agreements, invoices, insurance, photos. Simple, searchable, accessible from site on your phone.
Block out sub schedules per project. Color-code by trade. Set reminders for insurance renewal dates and holdback release dates. Share calendar with subs so they see their windows.
Track sub invoices, payments, holdbacks, and GST ITCs. Create purchase orders. Run reports on cost per project, per trade. Connect your bank for auto-reconciliation. Worth it from project #1.
These are purpose-built for managing construction subs and projects.
Scheduling, quoting, invoicing, client hub. Great for smaller operations. Easy to learn. Mobile app works well on site. Popular with Calgary contractors.
Full construction project management. Sub scheduling, RFIs, daily logs, budget tracking, client portal. More than you need now, but this is what you grow into at 8-12 projects/year.
Enterprise-grade. Overkill for now. But if you ever scale to 15+ projects/year with multiple PMs, this is the industry standard. Keep it on your radar for the future.
We can build a scheduling dashboard, payment tracker, and document storage right into your admin panel here. Tailored to garage suites. No monthly fee. Say the word when you're ready.
Subs aren't just labor. A reliable crew becomes your competitive advantage — the thing that lets you say yes when competitors have to say "we're booked."
Most GCs in Calgary can't give homeowners a firm completion date because they can't control their subs. If you build a crew that shows up, finishes on time, and does quality work — that's your entire sales pitch. "We finish when we say we'll finish." That alone will win you projects over bigger companies.
A framing crew that does one job for you will charge full rate. A crew that knows they'll get 8-10 jobs a year from you will sharpen their pencil. Steady work is the most valuable currency in the trades. Offer consistency and you'll get better pricing, priority scheduling, and loyalty.
A framing crew's first garage suite takes 10 days. Their fifth takes 7. Their tenth takes 5. They learn the details: the stair opening, the floor joist layout, the truss connection. That speed saves you money and shortens your project timeline. Invest in subs who specialize with you.
This is the endgame. Matt manages two projects, Ryan manages two. Your sub crews rotate between sites on a staggered schedule. Framers finish at Site A, move to Site B while electricians start at Site A. At 3-4 simultaneous projects you're doing 10-15 suites per year. That's a $2M-$4M/year business with 25-35% gross margins.
Map it out quarter by quarter. Each project is roughly 4-5 months. If you start a project every 6 weeks with staggered subs, you maintain 3 active projects at all times. The bottleneck isn't money or leads — it's sub availability. That's why finding and locking in reliable subs is the single most important thing you can do this year.
The path from here to $3M/year runs through your sub list.
Start with one good framing crew. Add one good electrician. Build from there. Every great builder started with one great sub.