Garage conversion Prices

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Average Garage conversion cost

The regular cost of Garage conversion are £6000. Costs can change based on the materials and the tradesman hired. The material costs are mainly about £1500

Average price per Garage conversion job in 2025

Avg. price low

Avg. price low
£5,250

Avg. price

Avg. price
£10,125

Avg. price high

Avg. price high
£14,850

£15400

£11550

£7700

£3850

£0

Prices based on actual Garage conversion costs for your area, as reported by local LeadsDoWork members.

Garage conversion installation cost in your area 2025

Labour cost £4,200
Material cost £1,500
Waste removal £300
Time frame: 6-12 weeks

Advantages for Garage conversion

  • Create additional usable space within in your home
  • Lower cost than an extension
  • Can be completed a lot quicker than a traditional extension

Disadvantages for Garage conversion

  • You'll lose a place to part the car or the extra storage that a garage provides

Garage conversion Manufacturers

Garage conversion FAQs

How long will my garage conversion take?

It’s often said that a garage conversion can take anywhere between 1 week to 1 month, depending on the size and scope. But many standard conversions without any plumbing can take as little as 5 days. Your contractor will be able to tell you exactly how long your garage conversion will take.

Do I need building regs for a garage conversion?

Are you considering converting your garage into a more usable space in your home? If yes, then you’d probably want to know if you’ll require building regs before converting the garage. The answer to this question is yes. Although you may not require planning approval to convert your garage into a more usable space, but you’d usually need approval under the Building Regulations.

When re-structuring your garage into a habitable space, the following should be taken into consideration: structural alterations, ventilation, moisture proofing, insulation, fireproofing, escape routes as well as the submission of a building building notice or full plan application to the local council in order to inform them about the planned project.

• Walls

You’ll require an approval if you plan to infill the garage door with a window and a new wall. This is because the garage may have been built of a shallow slab which implies that a new foundation would be needed for the new wall construction.

• Floor

Even though there’s a high possibility that the garage floor is strong enough for domestic use since its designed to withstand the weight of vehicles, you may however need to upgrade to make sure it suitable for both thermal insulation and damp proofing. In addition, there may also be the need to to alter the floor level in such a way that it matches that of the remaining parts of the house.

• Ventilation

According to the Building Regulations requirements, there’s a need for adequate ventilation for each individual rooms which includes garage conversions for general health purposes. What’s going to determine the ventilation level that’ll be required is the frequency at which the room is used. Ventilation can be provided through purge or simply opening the window or via trickle ventilation.

How long does a garage conversion take?

Garage conversion is a great way to add extra usable space to your home without having to extend your property. A fun fact is that, in the UK if you have your car parked in the garage, you’re in the minority. According to a research carried out by Admiral Loans, just about 33 percent of home owners in the UK store their cars in the garage. For most people the garage is literally a dumping ground that’s never fully utilized as such. In recent times, the garage is now being used to store a variety of other stuffs asides a car which includes garden furniture, tools and appliances, utilities such as washing machine, fridge and freezer as well as food and groceries. These facts show that more and more people are underutilizing their garage when they may actually be in need of more usable space in their property. So why not put into consideration converting the garage into a new space that would be able to serve more purpose?

If you’ve decided to convert your garage, you’d probably want to know the how long the project will take. There are a wide range of factors that can determine the duration of a garage conversion project. These factors include:

• If the foundation needs reinforcing

• If the floors, walls, or roofs are in a bad condition.

• If the ceiling height needs some raising

• If the insulation required in newer builds.

All aforementioned factors will make the garage conversion project take longer than expected. However, in normal situations garage conversions are relatively quick to complete once you start the building works. A single-car conversion will usually take about 3 to 4 weeks to complete depending on the existing garage’s structure.

How much is a single garage conversion?

Converting your garage into a habitable room can be an option that’s too good to pass up especially when you’re in dire need of more living space in your home. If you’re in a similar situation and considering the cost of a single garage conversion in your home, then you’ve come to the right place! The fact is, the cost of a single garage conversion is dependent on a number of influencing factors which includes your specific plans as well as your location. Generally, the price of garage remodel is expected to cost about half of what you’ll incur when building a home extension or addition from scratch. However, before commencing a project of this magnitude you should put into consideration some things.

A single garage conversion is a huge job which typically involves wall insulation, floor raising, heating addition, cool and ventilation as well as updating doors and windows. Before you get started you should consider if converting your single garage into a room is a good option, whether a permit is required to convert a garage, the type of room a garage can become, does it add value to your home and how much its going to cost.

Just like any other home improvement project, garage conversion cost varies depending on several factors like your garage space specifications. Other factors include the general condition of your garage - the condition of your foundation, walls, floors or roofs, the ceiling and more, planning applications, your location, the services of a structural engineer, internal or external garages etc. According to Santander, the average cost of converting a single garage costs approximately £6,300. However, considering the aforementioned influencing factors we’d expect the cost of a single garage conversion to cost within the range of £5,500 to £10,500.

What is a garage conversion?

What is your garage being used for? If your answer is anything besides your vehicle, you’re in the majority in the UK. In the country, according to a research by Admiralty Loans, several home and property owners now use their garage as dumping ground for all sorts of stuffs asides a car. Ultimately, this gives rise to garage conversions as the more or less underutilized space can be converted into a living space which can be more beneficial while also adding more value to the property.

A garage conversion is a fast and relatively affordable route to adding more floor space within your home. It’s basically the act of changing your garage into something other than a storage or a place in which you can park your car. This can be anything from a bedroom to a playroom and anything in between. It’s a great way to provide extra space to allow your family to spread out and have more privacy while still within the walls of your home.

A garage conversion project is a huge one which mostly does not require a planning application so far the conversion is internal. However if you’re planning to increase the garage’s size or change the exterior of your home, or convert your garage into a separate room, then you may require a planning permission before getting started. It’s always wise to consult your local authority before carrying out any work to be on the safer side.

A project of garage conversion’s magnitude is better left to a reliable professional who have the experience when it comes to dealing with building regulations and more. This way, you’d also get to save yourself some headaches and some extra cash which may result from possible costly errors.

How much does a garage conversion cost?

Are you looking to create some more space in your home with your garage being almost dispensable? If yes, then considering a garage conversion project may be the way to go. Unlike many other extension options, garage conversion does not take up an additional space as it only changes the current structure of the garage. As a result, the cost of completing a garage conversion project can be relatively attractive when compared to other space creating alternatives. So exactly how much would a garage conversion project cost? Well, there’s no precise answer for this as several influencing factors come to play. However, in this guide we’ll give you a rough idea of the average costs that you’re likely going to encounter. Some of the factors that can influence your budget dramatically includes the following:

• The size of the conversion. The larger the size of the garage per square feet, the more cost you’ll have to expend.

• The type of your property - listed buildings are usually more expensive.

• Your location in the UK. If you stay in London where there’s a higher demand, you’ll most likely pay more.

• You’re likely to pay more if a specialist knowledge is required.

• The amount of glazing to be installed

• Quality of the materials to be incorporated.

• Quality of the professional to carry out the installation service.

On average, when it comes to garage conversion projects, you’re likely to pay the following depending on the per square metre given:

• A single garage of about 15 square metre will cost within the range of £6,000 to £15,000.

• A double garage of about 30 square metre will cost within the range of £12,000 to £30,000.

Will I need planning permission or building regulations approval?

You may need planning permission if you are planning a larger extension. All extensions will need building regulations approval. An architect can assist with this and if planning permission is required. A reputable contractor will also be able to advise you if this is needed as well.

Will the company deal with the building control application?

Most companies will make the building control application on your behalf and ensure that all the work is completed to the right standards. When a building inspector has inspected it, you’ll get a certificate. It usually takes around 6-8 weeks after completion to come.

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B&G Carpentry

Based: in Newhaven, BN9

B&G Carpentry is based in Newhaven and have 5 positive reviews

Latest review

Barry T., TN34
15th February 2020

Conversion | Garage in Hastings

From start to finish very Proffesional service, friendly guys and kept informed all t...

Diamond Building Group

Based: in Reading, RG26

Diamond Building Group was founded on the twin values of quality and reliability – values that hav...

Latest review

RUTH D., SL1
31st January 2018

Conversion | Garage in Slough

Steve was very pleasant and I felt he had a high level of knowledge about the project...

Omega Lifestyle

Based: in Peterborough, PE7

Omega Lifestyle prides itself on providing a high quality of customer service from the initial order...

Latest review

Sheran J., PE6
28th June 2016

Conversion | Garage in Peterborough

Too expensive

Complete Home Renovations

Based: in Peterborough, PE2

Complete Home Renovations is based in Peterborough and have 1 positive reviews

Latest review

Alan B., NN8
12th July 2016

Conversion | Garage in Wellingborough

They didn't provide a quote.

BM Construction

Based: in Wallington, SM6

We are loft conversion and extension specialist. We offer a comprehensive service and can take care ...

Latest review

Pamela F., KT4
11th July 2016

Conversion | Garage in Worcester Park

Came looked around said would come back with price. No further contact.

Scotbuild Group

Based: in Fife, KY14

Scotbuild Group is based in Fife and have 7 positive reviews

Latest review

Palma M., PH1
6th July 2016

Conversion | Garage in Perth

Eco Heat Renewables were in a different league

ST Helens Home Improvements

Based: in Merseyside, WA10

ST Helens Home Improvements is based in Merseyside and have 4 positive reviews

Latest review

C., WA8
23rd April 2016

Conversion | Garage in Widnes

They were quick in response. Quick to make an appointment which they turned up on tim...

Marlow Developments & Building

Based: in Southend-on-sea, SS9

Marlow Developments & Building is based in Southend-on-sea and have 1 positive reviews

Latest review

Zeenat A., SS3
2nd December 2015

Conversion | Garage in Southend-on-Sea

good survey etc but job not yet done

LW Building Service

Based: in London, SE20

LW Building Service is based in London and have 2 positive reviews

Latest review

Angela L., SW16
28th November 2015

Conversion | Garage in London

LW Building Service contacted me via phone & came to see my proposed project, very in...

S&P Building Services

Based: in New malden, KT3

S&P Building Services is based in New malden and have 1 positive reviews

Latest review

Colin B., TW11
4th August 2015

Conversion | Garage in Teddington

Only one company was quoted so impossible to say

Rated Local builders

Scotbuild Group LTD

7 review(s)
Based: in Fife, KY14 7AU

Scotbuild Group LTD based in Fife, offer services in Extensions & Conversions. They have an average rating of 4.5471428571429 from 7 review(s). See their latest 5 star review below

ST Helens Home Improvements LTD

4 review(s)
Based: in Merseyside, WA10 2TF

ST Helens Home Improvements LTD based in Merseyside, offer services in Extensions & Conversions. They have an average rating of 4.48 from 4 review(s). See their latest 4 star review below

S&P Building Services LTD

1 review(s)
Based: in New malden, KT3 5HY

S&P Building Services LTD based in New malden, offer services in Extensions & Conversions. They have an average rating of 3.5 from 1 review(s). See their latest 4 star review below

LW Building Service

2 review(s)
Based: in London, SE20 8AG

LW Building Service based in London, offer services in Extensions & Conversions. They have an average rating of 3.25 from 2 review(s). See their latest 3 star review below

Marlow Developments & Building LTD

1 review(s)
Based: in Southend-on-sea, SS9 1BT

Marlow Developments & Building LTD based in Southend-on-sea, offer services in Extensions & Conversions. They have an average rating of 4 from 1 review(s). See their latest 4 star review below

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