Company
About Us

A family-run building company established in 1995

FAQs

Answers to common questions about our services

Health & Safety

Our commitment to safe, compliant building practices

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We’d love to hear about your experience working with us

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Speak to our team for honest advice and guidance.
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.

View All Projects
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

Commercial Building & Construction in Bexley & Kent

London city skyline at sunset featuring the Gherkin and modern skyscrapers reflecting golden light.

A Reliable Construction Partner for Commercial Properties and Organisations

Commercial building projects require far more than basic construction skills. They demand planning, coordination, compliance, and an understanding of how a working environment must continue to operate safely and efficiently throughout the build.

At P J Dunbar Builders Ltd, we’ve been delivering professional commercial building and construction services across Bexley, Bexleyheath, Sidcup, Dartford, Eltham, Welling, Orpington, and the wider Kent area since 1994. As a long-established, family-run construction company, we work with businesses, landlords, developers, and public-sector organisations to deliver dependable, well-managed commercial projects.

From refurbishment and structural works to full commercial construction, we provide a calm, organised, and professional approach — ensuring projects are completed safely, compliantly, and with minimal disruption.

Commercial Construction Services We Provide

We support a wide range of commercial building requirements. Rather than offering a one-size-fits-all solution, we tailor our approach to the type of property, the operational needs of the client, and the scope of work involved.

Commercial Refurbishments & Building Works

We carry out refurbishment and construction works within existing commercial buildings, including internal alterations, structural changes, upgrades, and improvements.

These projects are carefully planned to maintain safety, access, and continuity wherever possible.

Structural & Compliance-Led Construction

Many commercial projects involve structural alterations or remedial work driven by compliance, safety, or long-term durability.

We carry out load-bearing work, steel installations, wall alterations, and structural repairs with full consideration for regulations and risk management.

Landlord & Multi-Property Works

We regularly work with landlords and property managers to deliver improvement works, upgrades, and repairs across commercial portfolios.

Our structured process ensures consistency, accountability, and reliable delivery across multiple sites.

Commercial Repairs, Alterations & Improvements

From addressing structural concerns to upgrading tired or inefficient spaces, we provide practical construction solutions that protect property value and usability.

Long row of brown wooden lockers with round locks along a hallway leading to a closed double gray door under bright ceiling lights.
Man in yellow safety vest inspecting a ceiling with dark smoke stains in an industrial room with equipment and safety signs.
Empty corner office space with black countertops, white cabinets, two open windows, and multiple electrical outlets on the walls.
Empty room with gray double doors, a black and beige sofa on the left, and a large monitor or screen mounted on the right wall.

For more specialist services, please explore our dedicated pages for Office Refurbishments, Retail & Shop Fit-Outs, Public-Sector Works, Industrial Construction, and Commercial Maintenance.

Why Experience Matters in Commercial Construction

Minimal Disruption to Operations

We understand that many commercial environments remain live during construction. Our approach focuses on planning, sequencing, and communication to minimise disruption to staff, customers, and day-to-day operations.

Clear Planning and Accountability

Commercial projects require structure. We provide clear scopes of work, realistic timelines, and defined responsibilities — ensuring stakeholders know what’s happening at every stage.

Health, Safety and Regulatory Awareness

Safety and compliance are fundamental. We approach commercial construction with the appropriate level of care, documentation, and site management expected in professional environments.

Durable, Long-Term Construction

Commercial buildings experience higher usage and wear. Our workmanship prioritises durability, practicality, and longevity — reducing future maintenance and disruption.

Considering a Commercial Building Project?

If you’re planning building or construction work for a commercial property and want clear, professional guidance, we’re always happy to talk through your requirements.

Geta a Free Consultation  Get Friendly Advice
London city skyline at sunset featuring the Gherkin and modern skyscrapers reflecting golden light.
Our process

Our Commercial Construction Approach

With over 30 years of experience, we take a structured, professional approach to commercial construction projects of all sizes.

From early planning and coordination through to final delivery, our process focuses on clear communication, safe working practices, and high-quality workmanship — ensuring projects are delivered efficiently, compliantly, and to exacting standards.

Initial Consultation & Project Understanding

We begin by understanding the property, the business or organisation involved, and the goals of the project. This ensures our recommendations are aligned with operational and compliance requirements.

Site Survey & Feasibility Review

We assess the structure, access, services, and constraints of the site to ensure the project is planned correctly from the outset.
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Design Coordination & Approvals

Where required, we work alongside architects, engineers, building control, and other professionals to ensure technical and regulatory requirements are met.
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Pre-Construction Planning

We define the scope of work, timelines, safety measures, and logistics before work begins — reducing risk and ensuring smooth delivery.
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Construction & Ongoing Management

Our long-standing team carries out the work with professionalism, consistency, and clear communication, supported by dedicated oversight.
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Completion, Sign-Off & Ongoing Support

Once complete, we carry out final checks, ensure compliance, and remain available for further works or ongoing support.
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Email Us

dunbarbuilders@hotmail.co.uk

Call Us

+44 7861 816825

Request a Free Quote

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

Trusted Local Builders With Over 30 Years of Experience

Over 30 Years of Proven Construction Experience

Since 1994, we’ve delivered reliable building work across domestic and commercial sectors, developing the systems and experience required for complex projects.

Professional, Dependable and Safety-Focused

We understand the responsibility involved in commercial construction and approach every project with care, organisation, and professionalism.

A Skilled, Long-Standing Team

Our experienced tradesmen provide consistency, accountability, and a high standard of workmanship across every site.

Transparent Pricing and Clear Communication

We provide clear quotations, realistic expectations, and straightforward communication — essential for commercial decision-makers.

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 Commercial Building Projects

View examples of commercial building and construction work completed across Bexley, Dartford, Sidcup, and surrounding areas.

Each project reflects our structured approach and commitment to quality.

Long row of brown wooden lockers with round locks along a hallway leading to a closed double gray door under bright ceiling lights.
Small corner room with white walls, a gray utility cabinet, a gray door, and a black countertop with electrical outlets.
Empty corner office space with black countertops, white cabinets, two open windows, and multiple electrical outlets on the walls.
A corridor with a row of red lockers on the right side and a closed double gray door at the end under ceiling lights.
Empty room with gray double doors, a black and beige sofa on the left, and a large monitor or screen mounted on the right wall.
Small modern restroom featuring a white toilet centered against a bold red panel wall, with a gray trash bin to the left and a white sink with a soap dispenser to the right.
Wall-mounted electrical panel with wires and switches next to a doorway in a plain white room.
Small modern kitchen with white cabinets, black countertops, a stainless steel sink, and two built-in microwaves.

Commercial Building & Construction FAQs

Do you work with businesses that need to remain operational?

Yes. Many of our commercial projects are completed in live environments. We plan works carefully to maintain safety and minimise disruption.

Do you handle health and safety requirements?

Yes. Health and safety is central to our commercial construction approach, and appropriate measures are put in place for every project.

Can you work alongside architects and project managers?

Absolutely. We regularly collaborate with other professionals to deliver commercial projects smoothly and compliantly.

Do you offer ongoing commercial support or follow-up works?

Yes. Many commercial clients return to us for future works, upgrades, and maintenance support.

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 Discuss Your Commercial Construction Project?

If you’re planning building or construction work for a commercial property, we’d be happy to help.

With over 30 years of experience, we provide dependable, professional construction services you can trust.

Request Your Free Commercial Construction Consultation
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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