One of the first big decisions in any renovation is who’s going to do the work — and more importantly, who’s going to manage it. You have two fundamental choices: hire a general contractor (GC) who manages the entire project, or hire individual tradespeople (electrician, plumber, carpenter, tiler, and so on) and coordinate them yourself.
Both approaches work. Both have trade-offs. The right choice depends on the scale of your project, your budget, your available time, and your tolerance for the chaos that every renovation brings.
This guide lays out the pros, cons, costs, and risks of each approach so you can make an informed decision.
The two approaches explained
What a general contractor does
A general contractor is a single point of responsibility for your renovation. You hire the GC, and the GC hires and manages everyone else. Here’s what that typically includes:
- Planning and scheduling — the GC creates a programme of works, sequences the trades in the right order, and manages the timeline
- Hiring subcontractors — the GC has an established network of tradespeople (electricians, plumbers, plasterers, tilers, etc.) and brings them in at the right time
- Material procurement — the GC sources and orders materials, often at trade prices that aren’t available to homeowners
- Quality control — the GC checks each trade’s work before the next one starts
- Problem solving — when things go wrong (and they will), the GC makes decisions and finds solutions
- Permit coordination — the GC manages building control inspections, building permits, and sign-offs
- Single point of contact — you deal with one person, not six or seven
In short, the GC is the project manager. You describe what you want (your scope of work), the GC prices it, builds it, and hands it over.
What managing trades yourself means
When you manage individual trades directly, you’re taking on the role of the general contractor yourself. You:
- Find and vet each tradesperson individually — electrician, plumber, plasterer, tiler, flooring installer, painter, carpenter
- Schedule them in the correct sequence — the electrician needs to do first fix before the plasterer, the plasterer before the painter, the plumber before the tiler
- Coordinate timing — make sure each trade arrives when the previous one has finished, with no gaps
- Order materials — buy everything from kitchen units to screws, and make sure it arrives on time
- Manage quality — check the work yourself before the next trade covers it up
- Handle problems — if the plumber and electrician have a conflict about routing, you resolve it. If a material delivery is wrong, you deal with it.
- Coordinate permits — arrange building control visits and inspections yourself
This is a significant time commitment and requires a basic understanding of construction sequencing and quality standards.
The general contractor route: pros and cons
Advantages
Single point of accountability. If something goes wrong — a leak appears six months later, a wall isn’t straight, the tiling is uneven — you have one person to call. The GC is responsible for their subcontractors’ work. With individual trades, you’d need to figure out which trade caused the issue and chase them individually.
Professional project management. A good GC has built dozens or hundreds of projects. They know the sequencing, the lead times, the common pitfalls, and the solutions. This experience prevents problems that a first-time renovator wouldn’t see coming.
Time savings. Managing a renovation is a part-time job. If you’re working full-time, you probably don’t have the bandwidth to coordinate five or six different trades, deal with material deliveries, attend building control inspections, and solve daily problems.
Trade network. GCs have established relationships with subcontractors. They know who’s reliable, who does quality work, and who’s available. Building this network yourself takes years.
Trade pricing on materials. Many GCs buy materials at trade discounts that aren’t available to retail customers. This can offset some of their management margin.
Insurance coverage. A legitimate GC carries public liability insurance (and often professional indemnity) that covers the project. If a subcontractor damages your property, the GC’s insurance responds.
Reduced stress. Having someone else handle the daily decisions and problems is worth a lot to most homeowners.
Disadvantages
Higher cost. A GC adds their overhead and profit margin — typically 15-25% on top of the combined cost of labour and materials. This is the price of management. On a $100,000 project, that’s $15,000-$25,000 for the GC’s services.
Less control over individual trades. The GC chooses their subcontractors. You may not know who’s doing your electrical work until they show up. Some GCs will accommodate your preferences, but ultimately they manage their team.
Communication layers. Your instructions go through the GC to the tradesperson. Information can get lost or diluted. Direct communication with the person actually doing the work is filtered.
Variable quality. Not all general contractors are equal. A bad GC causes more problems than they solve — missed schedules, poor subcontractors, cost overruns, and broken promises. Finding a good GC requires careful vetting. Our guide on how to find a reliable contractor covers this in detail.
You’re dependent on their schedule. A busy GC might not be able to start for months. Their availability dictates your timeline, not the other way around.
The individual trades route: pros and cons
Advantages
Lower direct cost. Without the GC’s margin, you pay only for the trades and materials. On paper, this saves 15-25%. Whether you actually save money in practice depends on how efficiently you manage the project (more on this below).
Direct relationships. You communicate directly with each tradesperson. No intermediary, no lost messages. You can explain exactly what you want and see immediately how they respond.
Choice of each trade. You pick the best electrician, the best plumber, the best tiler — rather than accepting whoever the GC brings. If you have a fantastic electrician from a previous project, you can bring them in.
Flexibility. You can schedule trades around your own availability. If you want to do some work yourself (painting, demolition, simple tiling), you can slot it into the programme without negotiating with a GC.
Learning experience. If you’re interested in construction and want to understand your home better, managing trades directly teaches you a lot about how buildings work.
Disadvantages
Time commitment. This is the biggest one. Expect to spend 10-20 hours per week managing a significant renovation — more during critical phases. That’s phone calls, site visits, material ordering, problem solving, and decision making.
Sequencing complexity. Getting the order wrong is expensive. If the tiler arrives before the plumber has finished the waste connections, you pay the tiler to stand around or come back another day. If the plasterer finishes before the electrician does first fix, the electrician has to chase wires into new plaster, which the plasterer then has to repair.
No single point of accountability. When a problem emerges after the project, who’s responsible? If the bathroom leaks, is it the plumber’s installation, the tiler’s waterproofing, or the builder’s substrate preparation? Without a GC taking overall responsibility, you’re left refereeing disputes between trades.
No trade pricing. You buy materials at retail prices. On large material orders (kitchen units, tiles, timber), this can add 15-30% to material costs compared to what a GC pays at trade prices.
Risk of gaps in the schedule. Trades are busy. If your plasterer finishes on Friday but your painter can’t start until the following Thursday, you’ve lost a week. A GC keeps a tight schedule because they have relationships and leverage with their subcontractors.
Permit management. Building control inspections need to happen at specific stages — after first fix electrical, after structural work, before closing up walls. You need to arrange these yourself and ensure the work is ready for inspection.
Insurance gaps. Each individual trade should carry their own insurance, but not all do. If an uninsured tradesperson damages your property or injures themselves on your site, you may be liable. Always verify insurance before hiring.
Cost comparison: GC vs individual trades
The headline saving from managing trades yourself is the GC’s margin — typically 15-25%. But the actual savings are usually smaller than that, and in some cases, the DIY management approach costs more.
Where you save with individual trades
| Item | Potential saving |
|---|---|
| GC management margin | 15-25% of total project cost |
| Overhead allocation | GC’s office, admin, vehicle costs not applied |
| Flexibility to do some work yourself | Saves labour cost on tasks you handle |
Where you lose with individual trades
| Item | Potential additional cost |
|---|---|
| Retail material prices (vs trade) | 15-30% higher on major items |
| Schedule gaps (dead days between trades) | Each lost day extends the timeline and can add costs |
| Mistakes from incorrect sequencing | Rework and lost time |
| Your own time (10-20 hrs/week) | Value your time — this has a real cost |
| Fixing problems without expert support | A GC would catch and prevent many issues |
A realistic comparison
Scenario: Mid-range kitchen and bathroom renovation, total value approximately $50,000 / GBP 40,000.
With a general contractor:
| Component | Cost |
|---|---|
| Labour (subcontractors) | $22,000 |
| Materials (trade prices) | $14,000 |
| GC margin and overhead (20%) | $7,200 |
| Total | $43,200 |
| Contingency (15%) | $6,480 |
| Grand total | $49,680 |
Managing trades yourself:
| Component | Cost |
|---|---|
| Labour (hired individually) | $22,000 |
| Materials (retail prices, ~20% higher) | $16,800 |
| Schedule gaps (estimated 5 lost days) | $1,000 |
| Your time (100 hours at $0 if unpaid) | $0 |
| Total | $39,800 |
| Contingency (15%) | $5,970 |
| Grand total | $45,770 |
The apparent saving is approximately $3,900 or about 8%. But this doesn’t account for the value of your time (100+ hours of project management), the stress, or the risk of mistakes. If you value your time at $30/hr, the “saving” evaporates entirely.
For larger, more complex projects, the math tips further in favour of a GC because sequencing complexity and risk both increase.
When to hire a general contractor
A GC is usually the better choice when:
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The project involves multiple trades. If you need an electrician, plumber, plasterer, tiler, carpenter, and painter, coordinating all six efficiently requires experience. Anything involving three or more trades is generally GC territory.
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Structural work is involved. Removing walls, installing steel beams, underpinning — these require precise coordination between the structural engineer, the builder, and building control. A GC handles this routinely.
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You’re working full-time. Managing trades requires daytime availability for phone calls, site visits, material deliveries, and inspections. If you can’t take time off work, a GC is almost essential.
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You’re living in the property during the work. A GC manages the disruption, sequences work to maintain livable conditions, and handles the daily logistics of keeping a household functioning alongside a construction site.
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You have limited renovation experience. If this is your first renovation, the learning curve of managing trades is steep. A GC’s experience prevents costly mistakes.
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The budget is above $30,000 / GBP 25,000. At this level, the cost of management mistakes exceeds the GC’s margin. The stakes justify professional management.
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Permits are required. Building permits and building regulations inspections add an administrative layer that GCs handle routinely but first-time renovators often find confusing.
When managing trades yourself makes sense
Hiring individual trades works well when:
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The project is small and simple. A single-room renovation involving one or two trades — for example, a bathroom with just a plumber and a tiler — is manageable without a GC.
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You have construction experience. If you’ve managed projects before, you understand sequencing, quality standards, and how to deal with tradespeople. The GC role isn’t foreign to you.
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You have flexible time. If you work from home, are between jobs, or are retired, you have the availability to manage daily coordination.
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You have established trade relationships. If you already know and trust specific tradespeople from previous work, you have the network a GC would otherwise provide.
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Budget is tight and your time is available. If saving the GC margin is important and you can dedicate the time, direct management is viable for smaller projects.
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You want to do some work yourself. If you’re planning to handle painting, demolition, or simple installations yourself, integrating your own labour with hired trades requires direct coordination.
The hybrid approach
Many homeowners use a middle ground that captures some benefits of both approaches:
Option 1: GC for the complex phase, self-manage the simple phase
Hire a GC for the structural, plumbing, and electrical work — the complex, high-risk trades that require precise coordination. Then manage the simpler finishing trades (painter, flooring installer, decorator) yourself once the building is structurally and mechanically complete.
This reduces the GC’s scope (and cost) while keeping professional management where it matters most.
Option 2: Project manager without a GC
Some independent project managers offer management services without doing any construction work themselves. They coordinate your individually-hired trades, manage the schedule, check quality, and handle building control — for a fee of 10-15% of the project cost. This is less than a full GC margin but gives you professional management.
Option 3: Lead trade as informal coordinator
On smaller projects, one experienced tradesperson (often the builder or carpenter) naturally takes a coordinating role, scheduling other trades around their own work. This is informal and depends on finding the right person, but it’s common on projects in the $15,000-$40,000 / GBP 12,000-GBP 32,000 range.
How to manage individual trades effectively
If you decide to go the self-management route, these practices will help:
Get the sequencing right
This is the standard sequence for a renovation involving all major trades:
- Demolition and strip-out — remove everything that’s going
- Structural work — wall removal, beam installation, structural alterations
- First fix plumbing — waste pipes, supply pipes, radiator positions (all hidden in walls and floors)
- First fix electrical — cables, back boxes for sockets and switches, lighting positions
- Plastering — once all first fix services are in the walls
- Second fix plumbing — fit the boiler, radiators, taps, sanitary ware
- Second fix electrical — fit sockets, switches, light fittings, consumer unit
- Kitchen fitting — install units, worktops, and appliances
- Tiling — wall and floor tiles
- Flooring — timber, vinyl, or carpet in non-tiled areas
- Decoration — painting and wallpapering
- Final fix — door handles, accessories, finishing touches
- Snagging — inspection and defect list
Getting trades to overlap slightly (e.g., the electrician starts first fix in the kitchen while the plumber does first fix in the bathroom) saves time, but requires careful coordination to avoid conflicts.
Create a written schedule
Map out each trade’s involvement on a calendar. Share it with all trades so everyone knows when they’re expected and what needs to be finished before they arrive. Update it weekly as the project progresses.
Get everything in writing
For each trade, have a written agreement covering:
- The scope of work — what exactly they’re doing
- The price — fixed price or day rate, and what’s included
- The timeline — start date, expected duration, and dependencies
- Payment terms — when payment is due (never pay 100% upfront)
- Materials — who’s supplying what
- Insurance — confirmation of their coverage
This protects both parties and prevents the misunderstandings that cause scope creep and disputes.
Communicate proactively
Don’t wait for trades to call you. Check in regularly:
- Confirm the start date two days before
- Visit the site daily during active work
- Brief the incoming trade on what the outgoing trade has done
- Take photos at each stage, especially before walls are closed up
Inspect work before it’s covered
The most expensive mistakes are the ones hidden behind plaster. Before the plasterer arrives:
- Check that all electrical cables are in the right positions
- Check that all plumbing pipes are in the right positions and tested for leaks
- Take photos of all hidden services for future reference
Once it’s plastered over, finding a problem means ripping open walls.
Handle payments carefully
- Never pay the full amount upfront. A reasonable structure is: materials deposit (if they’re buying materials) -> progress payment at mid-point -> balance on satisfactory completion.
- Pay each trade individually. Keep clear records.
- Withhold final payment until you’ve done a snagging inspection and the tradesperson has addressed any defects.
Questions to ask before deciding
Before you commit to either approach, ask yourself these questions honestly:
- How many different trades does my project need? More than three? Strongly consider a GC.
- Do I have 10-20 hours per week to dedicate to project management? If not, you need a GC.
- Have I managed a construction project before? First time? The learning curve is real.
- Can I handle confrontation? Managing trades sometimes means difficult conversations about quality, delays, and money.
- What’s my time worth? If the GC margin is $10,000 and you’ll spend 200 hours managing, that’s $50/hour of your time. Is that worthwhile?
- How high are the stakes? A $10,000 bathroom is recoverable if things go wrong. A $100,000 whole-house renovation is not.
- Do I have a backup plan? If a key trade drops out mid-project, can you find a replacement quickly?
Whichever route you choose: start with a clear brief
Whether you hire a GC or manage trades yourself, the foundation is the same: a clear, detailed description of what you want done. This is your scope of work, and it’s what contractors — or individual trades — price from.
A written project brief makes quotes comparable, prevents misunderstandings, and sets clear expectations. Read our guide on how to write a renovation project brief for a step-by-step approach.
Ready to plan your renovation?
Choosing the right contractor structure is one of many decisions in a renovation. The common thread through all of them is having a clear project description that everyone can work from.
Join our early access to be the first to try Aikitektly — our free AI-powered renovation planning tool that helps you create a professional project brief, whether you’re sending it to a general contractor or to individual trades.