Garage Conversion Companies in Portsmouth

Name: Garage Conversion Specialist
Brand: MyBuilder
SKU: garage-conversion-specialist
Rating: 4.9 (15 reviews)

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Some of our top rated garage conversion specialists in Portsmouth

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JS Home Improvements
Rating: 4.9 out of 5
Garage Conversion Specialist in Portsmouth
Hi and welcome to JS home improvements my name is Joe and I'm the owner we are a family run business that's been around for 14 years now we take great pride in are work we offer all types of building maintenance from plastering brickwork tilling kitchens bathrooms ground works and much more please feel free to drop us a message thanks joe
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Latest review:
Roofing (Pitched)- 15 Jan 2023
Great job all done on a Sunday l have ask for joe to quote for extra work Would recommend nice guys good team
James Riddy Plastering
Rating: 5 out of 5
Garage Conversion Specialist in Portsmouth
At James Riddy Plastering we endeavour to go the extra mile, with over 22 years in the trade we can provide the expert workmanship and advice for the relevant project. We cover all aspects of plastering be it internal plastering to the new coloured renders and traditional sand and cement renders, traditional floor screeds and liquid floor screeds, traditional and new methods of damp proofing and condensation control.
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Latest review:
Plastering- 30 Nov 2023
We have just had some work completed on our house, which included render removal and K re-rendering to the rear of our property, we had all guttering, drainpipes, soffits and fascias replaced, as well as our front bay windows and porch area prepped and re-painted. We also had some bricks replaced and others re-pointed to the bay area This work was carried out by Jim (James) Riddy, with the help of his son, also called James. Jim was incredibly meticulous, taking care of the smallest details, nothing was too much trouble. He was professional, personable, respectful and very hardworking, turning up early and always on time. They always cleaned up and cleared away every day before leaving. We are extremely happy with all the work carried out and would definitely recommend Jim Riddy (and James!) and would absolutely not hesitate to use them again.
Provini Trades
Rating: 5 out of 5
Garage Conversion Specialist in Portsmouth
Provini Trades - Konrad. Always finish to high standards! Unrivalled attention to detail, cleaning, protection. Honest and trustworthy.
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Latest review:
Conversions - General- 30 Apr 2013
Konrad and George both have the right work ethic, arrived on time every day and got on with the job. Very friendly but not over familiar, very hard working and very professional in all their work. Cleaned up every night and were very accommodating to complete minor changes to the job requested by me. Top notch workmanship to complete an excellent job, highly recommended.
Element Construction
Rating: 5 out of 5
Garage Conversion Specialist in Portsmouth
With over 10 years experience I am a multi trader happy to help! Services I offer Plumbing Electrics Bathrooms Kitchens Flooring Carpentry Painting and decorating Plastering No job is too big or too small Friendly and respectful service
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Latest review:
Plumbing- 3 May 2022
We had a small leak. This was sorted quickly with no fuss Thank you
Lmt carpentry
Rating: 5 out of 5
Garage Conversion Specialist in Portsmouth
Business has been up and running about 3 years, I mainly do carpentry but can cover all aspects off house renovations
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Latest review:
Carpentry- 10 Jun 2020
Lee got in touch very quickly, we discuss the job, he quoted a fair price and booked us in. Lee turned up as agreed (early in fact) with a colleague and got straight to work. He Polite, professional and understanding of my toodler, who likes to get into EVERYTHING, running around. He was a pleasure to deal with and would definitely use him again for my carpentry needs. Thank you
1st Garage Conversions
Rating: 5 out of 5
Garage Conversion Specialist in Portsmouth
Hello, I'm Gordon from 1st Garage Conversions, we are a local firm based in Denmead specialising in garage conversions. With 20 years experience in converting garages we could be just what you`re looking for. I would like to give you a free quote. Thank you
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Latest review:
Conversions - General- 15 Dec 2025
Really great job done by 1st Garage Conversions. Very polite friendly team who worked hard in al weathers to get the job done. Would recommend!
Handy House Solutions Ltd
Rating: 5 out of 5
Garage Conversion Specialist in Portsmouth
Covering all aspects of home renovation, our team offers more than most. We can bring your ideas alive with 3D modelling, provide instant estimations online, and have at hand a great team of painters, plumbers, electricians, carpenters, and handymen ready to take on your next renovation project. We're friendly, honest, reliable, and have a high standard of work. CHAS Advanced Accredited.
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Latest review:
Conversions - General- 6 Sep 2022
Lovely guys, did the job well, and left everything clean and tidy.
OP Construction
Rating: 4.9 out of 5
Garage Conversion Specialist in Portsmouth
OP Construction Ltd is a small business based in Wateelooville providing a professional building, alteration and general property maintenance service. Our personalised and friendly service is specifically tailored for all clients to achieve their building needs.
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Latest review:
Conversions - General- 22 Feb 2019
Oliver was so professional and informative. He quickly responded to all of my enquiries and gave accurate timescales for each part of the job. The invoicing was clearly broken down so I knew exactly what was being spent where. Oliver and his team came on site and did a fantastic job. I couldn't be happier with the service they provided and I hope to use their services again very soon.
Miller Lifestyle Builders
Rating: 5 out of 5
Garage Conversion Specialist in Portsmouth
Miller Lifestyle Builders are experts with a wealth of experience in installation of custom built garden rooms/summer houses/office/entertainment rooms, conservatories, extensions and providing general renovation services. Transforming your living space, lifestyle and leisure time by managing and executing bespoke projects of any size including: Garden Rooms Extensions Groundworks/patio Conservatories Orangeries Porches Garage conversions Refurbishment Knock-throughs Plastering
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Latest review:
Conversions - General- 20 Oct 2023
Brendan was excellent, from start to end he was communicative, dealt amazingly with the curveballs our old house threw at him, and has completed the job to a high standard, as per quote and we are very happy. Brendan would be top of our list for any future work, and would definitely recommend him to anyone
Trevor Beech Your Builder
Rating: 5 out of 5
Garage Conversion Specialist in Portsmouth
Your Builder is a full-service building work provider run by Trevor Beech, who has over 40 years of experience in the building trade. We offer building and renovations as well as full building design and planning services throughout Hampshire and Dorset. Free fully itemised estimate and advice.
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Latest review:
Having just moved into a 3 bedroom house, where one of the bedrooms was far too big for my family's needs, Trevor converted the large bedroom into two smaller ones, thus creating a 4 bedroom home. Everything about the job was undertaken with great care and diligence, the workmanship was of excellent standard, everything was done within the time frame set out and all of my questions and queries were answered in full throughout. Trevor was completely professional throughout the whole process even when I changed my mind about a couple of things.
DJG Developments
Rating: 4.9 out of 5
Garage Conversion Specialist in Portsmouth
DJG Developments Ltd is a small local business we pride ourselves in customer satisfaction and have 20+ years of experiance in the building trade we cover all aspects of 1st/2nd fix carpentry including dry-lining and plastering we provide a friendly, reliable service at affordable costs for a hassle free service then consider us for all of your home or commercial projects many thanks Daniel and team
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Latest review:
Conversions - General- 28 Sep 2023
Top man absolutely smashed it in two days , good team all catered to my needs and got the job done in time . Can’t be more thankful Dan it looks the nuts .. Would definitely recommend Dan and his team looking for any improvements in your home , site or work place . And will 100 per event having him back for several other jobs … See you soon 👌
MAINFIX PROPERTIES LTD
Rating: 5 out of 5
Garage Conversion Specialist in Portsmouth
Building company who cover all domestic and commercial interior and exterior works. Aspects include kitchen,bathrooms,extesions and all refurbishments works
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Latest review:
Restoration & Refurbishment- 13 Apr 2023
These guys massively exceeded my expectations. Really good work, easy to deal with and very helpful questions and support.
Your builder ltd
Rating: 5 out of 5
Garage Conversion Specialist in Portsmouth
Your builder is a local building company based in Waterlooville. Over the past few years we have done many projects. Some of the main developments we have done is a plot of 5 houses with 6 student flats in Portsmouth, a block 17 flats in Fareham, The interior fit out of 9 houses in Botley and two million pound houses in Emsworth. Amongst these we have done many refurbishments and smaller domestic jobs.We are also approved bathroom and kitchen installers for wicks (the DIY store).
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Latest review:
Extensions- 31 Aug 2020
Luke and your builder ltd done our back and side utility room. Even though we’ve had lockdown and COVID 19 they done a great job. I’ve used your builder ltd a few times and the quality of work is of the highest order. What they quoted before they started is what I paid. Couldn’t be happier with the end product. Completely transformed our house. Would highly recommend them.
Style Construction southern ltd
Rating: 4.7 out of 5
Garage Conversion Specialist in Portsmouth
Style construction is a family run business. With over 30 years in the building industry. We take care of all aspects of building work. From assistance with design and right through to the final lick of paint. We are approved installers for a national kitchen and bathroom supplier. Style construction are proud members of several trade related organisations. Customer satisfaction is our no 1 priority. For an honest and competitive quote then give us a call.
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Latest review:
Conversions - General- 29 Mar 2020
Lester is extremely obliging and does an excellent job including clearing up afterwards. He is friendly and has a wide variety of skills. Very pleased with the job.
Floyd building services ltd
Rating: 4.5 out of 5
Garage Conversion Specialist in Portsmouth
We are an established local building company with reliable and trustworthy tradesman who work directly for us and have been with us from the start of our company. We aim to assist the clients with every project they require with efficiency and professionalism from the very first meeting to the completion of the project.
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Latest review:
Extensions- 16 Jun 2025
From start to finish Ron was a breath of fresh air and a master of all building matters. The job took a while as we were a small project between major building jobs they in process off. Also having to wait for third party plumbers and electrician availability. Overall we are very satisfied with the work completed and would recommend to others. Thanks guys
sjfuller Building services
Rating: 5 out of 5
Garage Conversion Specialist in Portsmouth
A local to the Emsworth area,working in the building industry for over 30 years,99% of my work coming from word of mouth, I offer a friendly reliable service, all work done to a high standard at very competitive rates.
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Latest review:
Conversions - General- 9 Mar 2026
Simon has completed all work extremely well. I very much appreciate all the help and advice he has given me. Without his help the project would not have run as smoothly as it did. I most definitely recommend Simon

4.9

Top rated Garage Conversion Specialists

Our Garage Conversion Specialists in Portsmouth, are rated 4.9 out of 5 based on 15 reviews from customers like you.

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What types of services are offered by garage conversion companies in Portsmouth?

A garage conversion specialist can walk you through every stage of transforming this often-overlooked space in the home.

Their services usually include:

Design consultation: Helping plan the layout and use of the converted space.
Onsite surveys and assessments: Checking the structure and suitability before work begins.
Managing planning permissions and building regulations: Ensuring your project complies with local rules.
Installing foundations and floor slabs: Strengthening or updating the base where required.
Infill of garage doors: Replacing garage doors with walls, windows, or entrances to match the new layout.
Insulating garage walls and roofs: Making the space energy-efficient and comfortable year-round.
Adding new windows and doors: Creating natural light and access points.
Electrical and heating installations: Adding power, lighting, radiators, or underfloor heating.:
Interior finishing work: Plastering, flooring, and basic joinery to prepare the space for final decoration.

Using MyBuilder’s matchmaking function, you can connect with a Portsmouth garage conversion company near you in no time and get the help you need with your project.

Costs of garage conversions in Portsmouth

Typically, a garage conversions in Portsmouth can cost between £13,000 – £20,000, depending on the size of the space, the scope of work, and the quality of the finish.

Many factors make up this final figure, including:

Design consultation: £300 to £800
Onsite survey and assessments: £150 to £500
Planning permissions & regulations: £200 to £1,000+ (varies)
Foundations & floor slab work: £1,000 to £3,000
Infill of garage doors: £1,200 to £2,500
Insulation (walls & roof): £1,000 to £2,500
New windows and doors: £800 to £3,000+
Heating and electrical installation: £1,500 to £4,000+
Interior finishing: £1,500 to £5,000+
Hourly labour rate: £20 to £35 per hour
Daily labour rate: £160 to £280 per day

Read more about the average garage conversion cost to help you start budgeting for your project in Portsmouth.

If you’re seriously considering a garage conversion, Portsmouth specialists will be the best source of accurate pricing information. Find your options on MyBuilder, then ask for a quote from a conversion professional with knowledge of your project specifics. Post your garage conversion job today and choose from verified garage conversion companies in Portsmouth.

Find a garage conversions specialists in Portsmouth with MyBuilder

A garage conversion can be a fantastic way to increase your living space without moving but finding the right professional makes all the difference. Platforms like MyBuilder make it easy to find and compare garage conversion companies and specialists in Portsmouth.

Follow a few simple steps to find the tradesperson for your job:

Step 1: Post your garage conversion job on MyBuilder for free

Describe your garage conversion project in detail, including your goals, the size of your garage, and any specific features you want to include; you can also include photographs to further demonstrate your project needs. Local Portsmouth garage conversion companies can then review your posting and express interest.

Step 2: Compare Portsmouth garage conversion companies and specialists

Once you’ve begun to receive responses, you can browse through profiles, review galleries of previous projects, and read feedback from other homeowners on our platform.

Step 3: Make your choice and start your project

Once you’ve reviewed your options, you can reach out directly to discuss your project in more depth and compare quotes to ensure the pricing is clear and competitive. You stay in control throughout the process, choosing the garage conversion company who best fits your needs, budget, and timeline.

All professionals on MyBuilder are verified at sign-up, including ID checks and skills assessments. What’s more, Portsmouth garage conversion companies on MyBuilder have to be confirmed as a registered business before joining the platform.

FAQs: Frequently asked questions when looking for garage conversion companies in Portsmouth

Do I need planning permission for a garage conversion in Portsmouth?

Most garage conversions fall under permitted development, but planning permission may be required for listed buildings, conservation areas, or major structural changes. You should discuss this with your chosen Portsmouth conversion company.

What building regulations apply to garage conversions in Portsmouth?

All garage conversions must meet building regulations covering areas like fire safety, insulation, ventilation, and structural stability to ensure the new space is safe and habitable.

Do garage conversion specialists in Portsmouth need specific qualifications or certifications?

While formal qualifications aren’t always required, specialists should have relevant experience and may hold certifications for regulated work like electrical or structural tasks.

Are garage conversion companies in Portsmouth required to have insurance?

Yes, reputable garage conversion companies in Portsmouth should hold public liability insurance to cover accidents or damage during the project, and many also carry additional cover for their work.

How long does a typical garage conversion take from start to finish?

A standard single garage conversion usually takes between 2 and 6 weeks, depending on the size of the space and the complexity of the work.

Can I live in my home while a garage conversion is carried out?

Yes, most homeowners can stay in their property during the conversion, though there may be some disruption from noise, dust, and limited access to certain areas.