House extensions are a great way to increase the living space and add value to your property. However, deciding whether to take on a DIY house extension project or hire a builder can be difficult.

In this blog, we will discuss the pros and cons of both options to help you make an informed decision.

DIY House Extension Pros:

  1.   Cost-saving: One of the main advantages of a DIY house extension is the cost-saving aspect. By doing the work yourself, you can save on labour costs.
  2.   Control: You have complete control over the project, from the design to the materials used.
  3.   Learning experience: A DIY house extension can be a great learning experience, allowing you to gain new skills and knowledge.


  1.   Time-consuming: DIY house extensions can take a lot of time, especially if you are doing it in your spare time. This can delay the completion of the project and disrupt your daily routine.
  2.   Lack of experience: Unless you have experience in construction, there may be aspects of the project that you are not equipped to handle, such as plumbing or electrical work.
  3.   Quality control: Without a professional builder’s experience and knowledge, the work’s quality may not be up to industry standards.

Hiring a Builder Pros:

  1.   Professional expertise: Professional builders have the knowledge and experience to ensure the project is completed to a high standard.
  2.   Time-saving: Builders have the workforce to complete the project in a shorter time frame, allowing you to enjoy the new space sooner.
  3.   Reduced stress: Hiring a builder can reduce stress and anxiety associated with the project, as they will handle all aspects of the project.
  4.   Perfect Result: These experts always offer the perfect result to the clients because of their experience and skill. Thus, you can get an excellent outcome for your house extension project when you hire professional builders.
  5.   Guaranteed Works: Most professional building contractors always offer guaranteed and fully insured services to ensure peace of mind.


  1.   Cost: Hiring a builder can be expensive, especially if you require a high level of customisation or unique design features.
  2.   Potential communication issues: Miscommunication or misunderstandings between you and the builder can cause delays and additional costs.

If you have the necessary skills and experience, a DIY house extension can be rewarding and cost-effective. However, if you need more experience and time, hiring a builder may be the best option.

M. Wilson Builders offers complete house extension services in and around Reigate according to your requirements and budget. Please get in touch with us to get a free quote.