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How Long Does A Loft Conversion Take?

A loft conversion is a great way to elevate the space you live in or any property you own. They can create additional space for anything from sleeping quarters to entertainment areas. Loft conversions are typically not lengthy processes, however, the amount of time a given project takes depends on several factors. 

How Long Does A Loft Conversion Take?

Posted on

January 23, 2024

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In this post, we’ll take a look at what you should consider when estimating how long your loft conversion will take. 

How Long Does A Loft Conversion Take?

Depending on the scale and complexity of your loft conversion, the average timescale can be anywhere from 4 to 8 weeks. However, the exact time depends heavily on the type of loft conversion you choose to go for. Different loft conversions vary in terms of complexity. It’s therefore important to take what they entail into consideration when establishing a timeline for a loft conversion project

The below demonstrates how long each type of loft conversion takes: 

Type of Conversion Average length of time (weeks)
Roof light 4
Dormer 5
Hip-to-gable 6
Mansard7 – 8
Full roof replacements 7 – 8

If you’re wondering what the different types of loft conversions are and what they entail, we’ve broken them down here for you. 

Roof light Conversions

One of the simplest loft conversions is roof light conversions which simply involve adding windows to the existing roof structure, typically in the form of skylights or roof lights. This type of conversion maximizes natural light, making the space brighter without altering the roof’s shape. 

The project timeline of approximately four weeks is due to the minimal structural changes required. Contractors need to create openings for the roof lights, install them, and finish the interior. 

Dormer Conversions 

Dormer conversions extend the existing roof, creating additional floor space and headroom. A dormer is a structural extension with vertical walls and a flat or sloped roof. This type of conversion is popular for creating bedrooms or larger living spaces within the loft. 

Because of the additional structural work needed for a successful dormer conversion, customers can expect a rough timeline of 5 weeks for completion. The work that goes into integrating the dormer into the existing roof is what takes the most amount of time. 

Hip-to-gable Conversions

A hip-to-gable conversion involves changing the sloping side of a hipped roof to a vertical wall, creating more internal space. It makes the ceilings slightly higher inside, which is ideal for conversions intended for creating additional living space or sleeping quarters. This type is suitable for houses with hipped roofs, where the existing space may be limited due to the sloping design. 

The conversion takes six weeks as it requires altering the roof structure significantly. Contractors need to extend the hip to a gable end, ensuring structural integrity while aligning it with the existing structure. 

Mansard Conversions

Mansard conversions alter the entire roof structure, creating a flat-roofed box-like extension with a steep slope. This type maximizes usable space by extending the living area to the entire floor. Mansard conversions are commonly chosen for their aesthetic appeal and the substantial increase in living space. 

There is significantly more work required for a mansard conversion, given the complexity of restructuring the entire roof to accommodate the mansard design. This is what ultimately contributes to the longer duration. Contractors must build the new roof structure, integrate windows or dormers, and complete interior work.

Full roof replacements 

Full roof replacements involve removing the existing roof entirely and replacing it with a new one, often of a different design or material. This can be done in conjunction with other loft conversions or as a standalone project to upgrade the roof. If you have persistent leeks or you’ve been advised to get a roof replacement from health and safety authorities, then you will need to get a roof replacement for your and your family’s well-being. 

Contractors may need to remove the old roof, assess and replace any damaged structures, and install the new roof. The additional time also accounts for any potential weather-related delays. Due to the entire replacement, work in wet weather is not always possible. 

The loft conversion process

Although loft conversions are relatively simple, there are still some fundamental steps that a project has to tick off in order to deliver a successful final project. The process usually involves the following steps: 

  1. Initial Consultation: This is where you meet with your design or architectural consultant to establish the feasibility of the project. The consultant may want to pay a visit to the site to assess what needs to be done in terms of design and budgeting. 
  2. Planning and Design: This is the phase where the architect and designer will draw up the initial designs of the loft conversion so as to give you, the customer, an idea of the final outcome. This is also where the final timeline will be established and final costs drawn up. 
  3. Pre-construction Preparation: This step entails contractors putting all the infrastructure in place that allows them to continue with the build. Contractors may put scaffolding up for certain loft conversion projects. 
  4. Construction: Depending on the type of project and the scale of the loft conversion, the construction period will continue for as long as it needs to. This is where the actual conversion gets underway. 
  5. Interior Finishes: This is the last stage in the actual assembly of the loft conversion. The final finishes are usually up to the designer unless there are any additional structural requirements for the finishing touches. 
  6. Final Inspections and Certification: To ensure that the final construction is 100% safe, the project will be signed off and its structural integrity certified. 

Loft conversion timeline

With these steps in place, you will need to allow for the appropriate amount of time during your loft conversion. The below provides you with the amount of time you can expect each stage of the loft conversion process to take: 

  • Step 1: Initial Consultation (1 week)
  • Step 2: Planning and Design (2 – 4 weeks)
  • Step 3: Pre-construction Preparation (1 week)
  • Step 4: Construction (4 – 8 weeks)
  • Step 5: Sign off and Certification (1 week)

The speed of progress for each of these steps depends on the type of conversion you opt to take, the design complexity, as well as the availability of the team that has been hired to work on the project. For example, the final sign-off stage may take longer if the designated authority has several projects they need to sign off on. 

Summary

If you are looking for a team of expert loft designers and converters, then look no further than BGR Designs. We have many years of experience in the home conversion sector and pride ourselves on being the ultimate reliable partner in your loft conversion journey. If you have an idea for a loft conversion in mind, get in touch with a member of our friendly team today. 

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