Don’t Make These DIY Mistakes in Home Improvement

DIY home improvement can be a great way to save money and add a personal touch to your space. There’s nothing quite like the satisfaction of completing a project yourself. However, while a DIY approach works for minor tasks, some projects are best left to the professionals. Too often, DIY enthusiasts make costly mistakes that could have been avoided by hiring an expert from MyJobQuote.

Before you pick up any power tools, let’s look at some of the most common DIY mistakes homeowners make and why calling in a professional is the smarter choice.

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1. Underestimating the Complexity of Electrical Work

Electrical work is one of the riskiest areas to tackle without the right expertise. A simple mistake can lead to overloaded circuits, damaged appliances, or even house fires. This is not a job to take lightly!

burnt electrical socket

Common DIY Electrical Mistakes:

  • Wrongly wiring outlets and switches
  • Overloading circuits
  • Not following building regulations

Hiring a Tradesperson Advantage: A licensed electrician will do the job correctly, efficiently and most importantly, safely. Don’t risk electrical work - hire an electrician from MyJobQuote today!

2. Poorly Installed Plumbing Fixtures

A small plumbing mishap can quickly turn into a nightmare of water damage, mould growth and expensive repairs. While swapping a tap might be simple, any work involving pipes and drainage requires expert hands.

leaking radiator

Common DIY Plumbing Mistakes:

  • Loose fittings causing leaks
  • Poorly connected pipes causing water damage
  • Wrong use of sealants and adhesives

Hiring a Tradesperson Advantage: A plumber from MyJobQuote will install everything correctly so you avoid water damage and long-term headaches.

3. Ignoring Structural Integrity

That open-plan living space may look great in design magazines, but taking down a wall without proper planning can have disastrous consequences.

wall removal and acro's

Common DIY Structural Mistakes:

  • Removing load bearing walls without support
  • Poorly built extensions that don’t comply with building codes
  • Improperly installed flooring causing sagging

Hiring a Tradesperson Advantage: A structural engineer or builder will make sure your renovations are safe, stable and compliant.

4. Using the Wrong Materials

Trying to save money by using cheap materials often results in shoddy work that doesn’t last. Something as simple as the wrong paint or weak flooring can cause big problems down the line.

peeling paint

Common DIY Material Mistakes:

  • Using interior paint in bathrooms and kitchens, leading to peeling
  • Low grade wood for outdoor decking
  • Cheap tiles that crack under pressure

Hiring a Tradesperson Advantage: A tradesperson knows exactly what materials are right for your project for durability and quality results.

5. Inaccurate Measurements and Poor Planning

The golden rule of DIY? Measure twice and cut once. But without experience, it’s easy to miscalculate and waste materials and money.

man measuring flooring

Common DIY Measurement Mistakes:

  • Incorrectly sized cabinets that don’t fit the space
  • Uneven tiling due to poor planning
  • Doors that don’t close properly after flooring installation

Hiring a Tradesperson Advantage: A tradesperson from MyJobQuote will take precise measurements.

6. Rushing the Job

DIY enthusiasm often means cutting corners. Whether it’s skipping prep work before painting or rushing a flooring installation, hasty work usually means regrets.

cracked bathroom grout

Common DIY Rushing Mistakes:

  • Streaky, uneven paint jobs
  • Grouting that cracks due to improper sealing
  • Flooring that lifts due to rushed installation

Hiring a Tradesperson Advantage: Tradespeople will take the time to do the job right the first time for a perfect finish.

7. Not Getting the Right Permits

Some home improvement projects require permits, especially those involving structural, electrical or plumbing work. Ignoring this can mean fines, delays and problems when selling your home.

plans and a stamp

Projects That Often Require Permits:

  • Home extensions
  • Electrical rewiring
  • Major plumbing alterations

Hiring a Tradesperson Advantage: Hiring a tradesperson makes sure your project meets all legal and safety requirements so you can have peace of mind and no headaches.

The Cost of DIY Mistakes

A botched DIY job can end up costing more than hiring a professional in the first place. Fixing errors often means extra materials, more labour and sometimes a complete re-do. Before you start, get a quote from a local tradesperson to compare the costs. If you want to read up about avoiding costly errors in home improvement too, check out the article here!

DIY or Pro?

Painting and furniture assembly are fun. Electrical, plumbing and structural work isn’t. For some tradespeople tips and tricks check out our guide here!

Don’t gamble with your home or your money—get a tradie from MyJobQuote today!


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Last updated by MyJobQuote on 25th February 2025.
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