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About Us

A family-run building company established in 1995

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Answers to common questions about our services

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Our commitment to safe, compliant building practices

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Projects

Recent Building Projects

Take a look at some of the work we’ve recently completed across Kent and South East London — real projects, delivered by our experienced, long-standing team.

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Modern kitchen with dark cabinetry, marble countertops, two skylights, hanging pendant lights, and wooden herringbone floor.
Single Storey Side & Rear Extension
Bexley
Modern dining room with a wooden table and eight chairs, a black sideboard, and a skylight overhead.
Double Storey & Side Extension
South East London
Modern garden room with wooden cladding, black-framed sliding glass doors, gray patio chairs, and potted plants under a partly cloudy sky.
Garden Room Construction
Bexleyheath
Areas We Cover
Kent

Trusted builders serving Kent and surrounding areas

Bexley

Local builders serving Bexley and nearby areas

Bexleyheath

Local builders serving Bexleyheath and nearby areas

South East London

Trusted builders working across South East London

Dartford

Local builders serving Dartford and nearby areas

Sidcup

Local builders serving Sidcup and nearby areas

Eltham

Local builders serving Eltham and nearby areas

Welling

Local builders serving Welling and nearby areas

Bromley

Local builders serving Bromley and nearby areas

Chislehurst

Local builders serving Chislehurst and nearby areas

Orpington

Local builders serving Orpington and nearby areas

Don’t see your area listed? Don't worry we cover a wide range of locations —
Get in touch to check availability.
Services

Domestic Services

House Extensions

Add space with a professionally built extension

Loft Conversions

Turn a unused loft into usable living space

Home Renovations

Transform and modernise your home’s interior

Kitchen Extensions

Create a larger, open-plan kitchen space

Garage Conversions

Convert your garage into usable living space

Structural Work

Safe structural alterations and steelwork installation

Bathroom & Kitchens

Upgrade your bathroom or kitchen space

Patios, Driveways & Garden Walls

Improve outdoor spaces with quality hard landscaping

Porches & Entrance Extensions

Enhance your home’s entrance with a porch

Outbuildings & Garden Rooms

Create a separate garden room or outbuilding

Listed & Period Property Restorations

Careful restoration of listed and period homes

Roofing & Roof Repairs

Reliable roofing and roof repair services

Commercial  Services

Commercial Building & Construction

End-to-end construction for commercial projects

Office Refurbishments & Fit-Outs

Create productive, well-designed office spaces

Retail & Shop Refurbishments

Professional refurbishments for retail spaces

School & Public-Sector Building Works

Safe, compliant building works for public facilities

Industrial Units & Warehouse Construction

Purpose-built industrial and warehouse facilities

Maintenance & Repair Contracts for Businesses

Planned and reactive maintenance for businesses

Specialist Services

Design & Planning Management

Design and planning coordination made simple

Project Management

Professional oversight from start to finish

Property Maintenance & Small Works

Small building repairs and property maintenance

Structural Alterations & Steelwork Installation (RSJs)

Safe structural alterations and steel beam installation

Brickwork & Masonry Services

Skilled bricklaying and masonry work

Groundworks & Foundations

Solid groundworks and foundations built correctly

Plastering & Rendering

Plastering and rendering for extensions and renovations

Building Regulations & Compliance Support

Ensuring your project meets building regulations

Helpful Information

Get a Free QuoteView Recent ProjectsAbout UsFAQsHealth & SafetyAll Services
Contact
+44 7861 816825dunbarbuilders@hotmail.co.uk

Garage Conversions in Bexley & Kent

Two-story brick house with a double white garage under a clear blue sky.

Transform Unused Garage Space into a Valuable New Room

A garage conversion is one of the most cost-effective and convenient ways to add extra living space to your home. Whether your garage is underused, outdated, or simply no longer needed for parking, converting it into a functional room can dramatically improve both comfort and practicality — without the need for major structural work or large construction costs.

Many homeowners across Bexley, Bexleyheath, Sidcup, Dartford, Eltham, Orpington, Welling, and wider Kent are choosing garage conversions as a smart alternative to extensions. In many cases, a garage conversion can be completed faster, with less disruption, and at a significantly lower cost than other home improvement projects — all while adding meaningful value to your property.

At P J Dunbar Builders Ltd, we’ve been converting garages into high-quality living spaces for more than 30 years. Whether you want a home office, an extra bedroom, a gym, a playroom, a utility room, or a fully self-contained annexe, our experienced team manages every stage of the project — from the initial assessment through to design, construction, electrics, plumbing, insulation, and finishing.

A garage conversion offers one of the highest returns on investment, and with the right builder, the transformation can be seamless.

Types of Garage Conversions We Build

Every home — and every garage — has different potential. Our job is to help you unlock it. We’ll assess your space, understand your goals, and recommend a conversion style that suits your home, layout, budget, and long-term plans.

Single Garage Conversions

The most common type of conversion, a single garage can be transformed into a warm, comfortable room that blends naturally with the rest of your home.

Many homeowners use this space for a home office, utility room, playroom, downstairs bedroom, or extended kitchen area.

Double Garage Conversions

A double garage provides exceptional flexibility. It can be converted into one large room — such as a spacious living area or home gym — or divided into multiple rooms, including a bedroom, bathroom, or utility space.

Double garage conversions often add significant value due to their size and versatility.

Integral Garage Conversions

Integral garages (built into the footprint of the home) are ideal for conversions because they already share structural walls with the main house.

These conversions typically require minimal construction work and often deliver the best integration with the existing layout.

Empty room with wood flooring, white walls, a ceiling light fixture, a wooden door, and an open door showing a plant in the adjoining room.
Modern living room with gray leather sofa, orange pillow, wall-mounted TV showing a cricket match, wooden herringbone floor, and contemporary furniture.
Modern living room with wooden herringbone floor, gray sectional sofa with orange pillows, two small dogs on the sofa, and a console table with decorative items and a round mirror.

Attached Garage Conversions

An attached garage can be converted into a seamless extension of your ground floor.

Whether you choose to expand your kitchen, add a dining area, or create a home office with direct access from the house, attached conversions offer excellent layout improvement opportunities.

Detached Garage Conversions

Detached garages can be transformed into self-contained workspaces, gyms, studios, or guest accommodation.

With the right design, they can even function as annexe-style living spaces, perfect for older relatives, older children, Airbnb use, or rental potential.

Popular Garage Conversion Uses

Over the years, we’ve delivered garage conversions that have become:Home offices

Bedrooms or guest rooms, Utility and laundry rooms, Home gyms, Playrooms or dens, Kitchen extensions, Hobby or craft rooms, Annexe-style living quarters, Studios or treatment rooms for self-employed professionals

We’ll help you understand what’s possible and create a layout that suits your lifestyle.

Modern bathroom with gray tiled walls, patterned black and white floor tiles, a wooden door, glass shower enclosure, white toilet, and round illuminated mirror.
Empty modern room with light gray walls, wood flooring, two wall-mounted flat-screen TVs, a dark gray door, and a gray cabinet.
Organized storage shelves with labeled bins for bleach, dishwasher, carpets, laundry, windows, cleaning, and cloths next to a closed white door.

Benefits of a Garage Conversion

A Cost-Effective Way to Add Valuable Living Space

Compared to house extensions or loft conversions, garage conversions are usually more affordable because the main structure already exists.

This means less construction work, fewer materials, and shorter build times. For a relatively modest investment, you can create a completely new room that improves day-to-day comfort and expands your living space dramatically.

Increase Property Value with Minimal Disruption

A well-designed garage conversion can significantly increase the value of your home, especially in areas where living space is in high demand.

Buyers prioritise practical layouts, additional bedrooms, home offices, and improved ground-floor functionality — all of which a garage conversion can provide. Because these builds typically involve less upheaval than major extensions, you gain value and usability with far less disruption.

Create a Room Designed Around Your Lifestyle

Many families find that their home works perfectly — except for one missing room.

Whether you now work from home, have a growing family, need more storage, or want a dedicated space for hobbies or exercise, a garage conversion allows you to design a room that fits your life exactly. Instead of compromising or moving house, you adapt your home to meet your real-world needs.

A Faster, Cleaner, and Smoother Build Process

Garage conversions rarely require extensive structural work, meaning the project can progress quickly and with minimal disruption to your daily routine.

In most cases, homeowners can remain living in the property throughout the build. By transforming an existing space rather than constructing a new one, garage conversions offer a simple, straightforward route to gaining the extra room you need.

Got Questions About Garage Conversions?

If you're unsure where to start or want to know whether your garage is suitable for conversion, we’re always happy to offer friendly, honest advice.

Request Your Free Garage Conversion QuoteGet Friendly Advice
Two-story brick house with a double white garage under a clear blue sky.
Our process

Our Garage Conversion Process

After more than 30 years of working in Bexley, Kent, and South East London, we’ve built a smooth, reliable process that keeps your project organised and stress-free from the first conversation to the final handover.

Consultation & Early Advice

We begin with an informal discussion about your goals, whether that’s creating a bedroom, home office, gym, or extended living space. We’ll help you understand what’s possible with your garage, how the conversion might impact your layout, and what options best suit your property and budget. This stage gives you clarity and confidence before committing to anything.

Detailed Survey & Feasibility Assessment 

If you'd like to move forward, we carry out a full survey of your garage to assess its structure, foundations, insulation potential, ceiling height, and integration with the main home. We’ll also discuss whether planning permission is required (in most cases it isn’t), as well as building regulation requirements such as fire safety, thermal efficiency, and ventilation. This ensures that everything we build meets modern standards and performs well long term.

Design, Drawings & Building Regulations Approval

Garage conversions must meet specific building regulations, including thermal upgrades, structural integrity, and fire safety standards. We work with your chosen designer or our trusted architectural partners to prepare drawings that are not only visually appealing but also fully compliant. We handle building control submissions and liaise with inspectors to ensure a smooth approval process from start to finish.

Pre-Construction Planning

Before work begins, we outline the full scope of the project, including materials, timelines, insulation requirements, electrical layouts, plumbing locations, and finishing options. We believe in total transparency, so you’ll always know what to expect at each stage. This planning phase ensures a clean, organised build with no unexpected disruptions.

Construction, Conversion & Finishing

During construction, we transform your garage into a warm, comfortable living space that blends seamlessly with the rest of your home. This often includes raising the floor, adding insulation, installing new windows and doors, fitting electrics and heating, upgrading walls and ceilings, and completing all plastering, carpentry, and finishing touches. A dedicated project lead keeps you updated throughout the build, ensuring quality and consistency at every stage.

Final Approval, Handover & Aftercare

Once construction is complete, we walk through the finished room with you to ensure everything meets your expectations. We handle building control sign-off, complete any final adjustments, and ensure you’re fully satisfied with the work. Even after the project is finished, we’re always here if you need follow-up advice, support, or future improvements.

Email Us

dunbarbuilders@hotmail.co.uk

Call Us

+44 7861 816825

Request a Free Quote

Get a Free No Obligation Quote
Why Homeowners Choose P J Dunbar Builders

Trusted Local Builders With Over 30 Years of Experience

Homeowners across Bexley, Bexleyheath, Sidcup, Dartford, and Kent choose us because of our experience, integrity, and consistent quality.

Below are just a few reasons our clients trust us with their garage conversion projects. 

Over 30 Years of Local Building Experience

We’ve been carrying out garage conversions across Bexley and Kent since 1994, giving us deep knowledge of local property types, structural layouts, and building requirements. Our experience means your project moves smoothly and professionally from start to finish.

A Family-Run Company Built on Trust

As a long-established family business, we prioritise honesty, clear communication, and high standards of workmanship. Most of our work comes from personal recommendations — a reflection of the relationships we build with our clients and the quality of our results.

A Skilled, Long-Standing Team You Can Depend On

We work with a trusted team of tradesmen who have been with us for many years. This consistency allows us to maintain exceptional standards across every project and ensures your home is always in safe, skilled hands.

Trusted by Homeowners Across Bexley & Kent

For over 30 years, we’ve built our reputation on quality, reliability, and customer satisfaction. Here’s what our clients have to say about working with us.

"We’re extremely happy with our ground floor rear extension. The workmanship was excellent, everything was clearly explained, and pricing was straightforward with no surprises. We’d definitely use PJ Dunbar again and would highly recommend them."
Matthew
Rear Extension
"Danny and his team built our two storey side extension and did a great job. The build stayed on schedule, extra works were fitted in without issue, and all the trades were easy to deal with. We’d happily recommend PJ Dunbar Builders."
Warren Kupka
Two Storey Side Extension
"PJ Dunbar built our loft and the whole process ran extremely smoothly from start to finish and yes... I’m talking about construction. The work was handled professionally and we’d fully recommend them."
Adriana Perera
Loft Conversion

Recent Garage Conversion Projects

Take a look at some of the garage conversions we've completed across Bexley, Bexleyheath, Sidcup, Dartford, Eltham, Welling, Swanley, and surrounding areas.

Each project showcases our workmanship, attention to detail, and ability to transform unused spaces into practical, comfortable rooms that blend seamlessly with the home.

Modern living room with gray sectional sofa, two small dogs sitting on it, wooden herringbone floor, and large windows showing cars outside.
Modern living room with gray leather sofa, orange pillow, wall-mounted TV showing a cricket match, wooden herringbone floor, and contemporary furniture.
Empty room with light wooden flooring, two wooden doors, white walls, and a modern ceiling light fixture.
Indoor underfloor heating pipes being installed on insulation boards with 'UNILIN' branding in a room under construction.
Organized storage shelves with labeled bins for bleach, dishwasher, carpets, laundry, windows, cleaning, and cloths next to a closed white door.
White extension with black door and three-panel window on a grey pebbledash house with stone and brick driveway.
Modern bathroom with gray tiled walls, patterned black and white floor tiles, a wooden door, glass shower enclosure, white toilet, and round illuminated mirror.
Construction site with excavated ground and rubble inside a residential garage area with tools and household items.

Garage Conversion FAQs

Do I need planning permission for a garage conversion?

In most cases, garage conversions fall under permitted development and do not require full planning permission.

However, this depends on whether your property has previous extensions, whether you live in a conservation area, and whether the conversion changes the building’s external appearance.

We’ll assess this during your site survey and guide you through any required applications.

How much does a garage conversion cost in Bexley or Kent?

Costs vary depending on the size of your garage, the extent of structural alterations, and the type of room you’re creating.

For example, adding plumbing for a utility room or bathroom will affect the cost differently than creating a standard bedroom or home office.

After a site visit, we provide a clear, fixed, itemised quotation so you know exactly what to expect.

Will I lose storage space by converting my garage?

Many homeowners choose to integrate built-in storage during the conversion, or add outdoor storage solutions such as a shed.

We can help you explore practical alternatives so you don’t sacrifice storage unnecessarily.

Can a garage conversion add value to my home?

Yes — garage conversions often add significant value, especially when creating practical spaces such as home offices, bedrooms, or extended living areas.

In many cases, the value added exceeds the cost of the project.

Do you handle everything from start to finish?

Yes. We manage the entire process, including design support, building regulations approval, construction, electrics, plumbing, and finishing.

How long does a garage conversion take?

A typical garage conversion takes 2–5 weeks, depending on the level of structural work and the complexity of the new room.

Because much of the work focuses on internal changes — insulation, electrics, heating, floors, and plastering — the process is usually faster and smoother than larger construction projects.

Will the new room blend seamlessly with the rest of the house?

Yes. Our goal is to make the converted garage look and feel like a natural part of your home.

This includes upgrading insulation, raising the floor, adding heating, matching finishes, and ensuring the final room meets modern living standards.

Is a garage conversion warm and suitable for year-round use?

Absolutely. We install modern insulation, upgraded flooring, heating, windows, doors, and ventilation to ensure the new room is comfortable, energy-efficient, and fully compliant with building regulations.

Can you convert part of a garage instead of the whole space?

Yes. Some homeowners choose a partial conversion, keeping storage at the front while using the rear for a utility room or office.

We can advise on the best layout based on your property.

How do I get started?

Simply contact us for a friendly, no-obligation chat. We’ll discuss your ideas, answer your questions, and arrange a site visit if you'd like to explore your options further.

Still have questions?

If you didn’t find what you were looking for, our team is happy to help.

Get in touch today for friendly, no-obligation advice about your extension, renovation, or new-build project in Bexley or Kent.

Request Your Free Estimate Today

Ready to Transform Your Garage Into a Beautiful New Living Space?

If you’re ready to gain extra room, improve your layout, and unlock the potential of your home, we’d love to help bring your ideas to life.

Whether you’re creating a bedroom, home office, gym, or something entirely unique, our experienced team offers clear guidance and a free, no-obligation estimate.

Request Your Free Garage Conversion Quote
Contact:
+44 7861 816825
dunbarbuilders@hotmail.co.uk
Opening Hours:
Monday–Friday: 8am–5pm
Saturday: 8am–1pm
Sunday: Closed
Company number:
08014695
CompanyHomeAboutProjectsContactAreas We CoverFAQsHealth & SafetyLeave us a review
Domestic ServicesHouse ExtensionsLoft ConversionsHome RenovationsKitchen ExtensionsGarage ConversionsStructural WorkBathroom & KitchensPatios, Driveways & Garden WallsPorches & Entrance ExtensionsOutbuildings & Garden RoomsListed & Period Property RestorationsRoofing & Roof Repairs
Commercial  ServicesCommercial Building & ConstructionOffice Refurbishments & Fit-OutsRetail & Shop RefurbishmentsSchool & Public-Sector Building WorksIndustrial Units & Warehouse ConstructionMaintenance & Repair Contracts for Businesses
Specialist ServicesDesign & Planning ManagementProject ManagementProperty Maintenance & Small WorksStructural Alterations & Steelwork Installation (RSJs)Brickwork & Masonry ServicesGroundworks & FoundationsBuilding Regulations & Compliance SupportPlastering & Rendering
Areas We CoverKentBexleyBexleyheathSouth East LondonDartfordSidcupBromleyElthamWellingChislehurstOrpington
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