Builders in Dartford
Reliable, Experienced Local Builders Serving Dartford and the Surrounding Areas
If you’re searching for trusted, experienced builders in Dartford, you’re in the right place. With over 30 years of industry experience, P J Dunbar Builders Ltd delivers high-quality building work across Dartford, Crayford, Wilmington, Greenhithe, Stone, and the wider DA postcode areas.
As a long-established, family-run building company, we combine skilled craftsmanship with honest communication, ensuring every project — big or small — is completed to a high standard and with care. Whether you’re extending your home, converting your loft, renovating a property, or planning a new build, we provide reliable, well-managed construction services from start to finish.
Building Services We Offer in Dartford
We provide a complete range of domestic and commercial building services across Dartford, helping homeowners improve, extend, and modernise their properties with reliable workmanship and clear, practical advice. Whether you live in a 1930s semi, a Victorian terrace, a modern development, or a new-build estate, our team delivers high-quality work tailored to local planning requirements and property styles.
House Extensions
Expand your living space with a professionally built extension. We complete all types of house extensions throughout Dartford, including single-storey kitchen extensions, rear extensions, side-return extensions, double-storey additions, and full wrap-around builds.
Whether you want a larger kitchen, an open-plan living space, or an additional bedroom, we provide full design support, structural guidance, and quality construction from start to finish.
Loft Conversions
Many homes in Dartford and the surrounding areas have excellent loft conversion potential. We specialise in dormer, hip-to-gable, Velux, and L-shaped loft conversions that transform unused attic space into bright, functional rooms.
Whether you’re creating an extra bedroom, office, or en-suite, our team handles every stage — from structural work to insulation and finishing — ensuring a seamless extension of your home.
Home Renovations & Refurbishments
If you're modernising a dated property or improving your home layout, we offer complete renovation services across Dartford.
From structural alterations and reconfigurations to kitchens, bathrooms, plastering, rewiring, flooring, and full refurbishments, we manage every detail. Our focus is always on delivering high-quality finishes that enhance comfort, functionality, and long-term value.
New Build Homes
Planning a new build in Dartford? We provide a full, end-to-end construction service — from groundwork and brickwork to roofing, interiors, and final handover.
With more than 30 years of industry experience, we work closely with architects, surveyors, and local authorities to ensure your new home is built to the highest standard, safely and efficiently.
Commercial Building Work
We deliver reliable, professional building services for commercial clients throughout Dartford, including office refurbishments, shop fit-outs, structural work, commercial extensions, and repairs for business premises.
Our team works safely, efficiently, and with minimal disruption to your operations.
Listed & Heritage Building Work
Dartford and the surrounding areas include several conservation and heritage zones.
We provide specialist restoration and refurbishment services for listed and historic buildings, preserving original character while upgrading structure, safety, and usability. Our team uses sympathetic building techniques to ensure your property retains its charm while meeting modern standards.
Leading House Extension & Loft Conversion Specialists in Dartford
P J Dunbar Builders Ltd is a trusted, family-run construction company serving Dartford, Crayford, Wilmington, Greenhithe, Stone, and the wider DA area since 1994.
For over 30 years, we’ve specialised in house extensions, loft conversions, and full home renovations — helping families across Dartford create more space, improve their layouts, and add long-term value to their homes.
Whether you’re planning a kitchen extension, a double-storey addition, a rear or side return extension, or a dormer loft conversion, our experienced team manages every stage of the project. From the early design and planning stages right through to construction and final finishing, we deliver workmanship, communication, and care that homeowners can rely on.
Our reputation in Dartford has been built on quality craftsmanship, fair and transparent pricing, and family values that put our customers’ needs first. At P J Dunbar Builders, we don’t just build structures — we help create homes that grow with your family.
If you’re searching for reliable, experienced local builders in Dartford, Crayford, or Wilmington, we’d be happy to help you take the next step toward your ideal home.
Why Choose P J Dunbar Builders for Your Project in Dartford?
For over three decades, homeowners in Dartford have relied on P J Dunbar Builders Ltd for building work that’s dependable, well-managed, and completed to a consistently high standard. As a family-run company established in 1995, we’ve built our reputation on honesty, transparency, and workmanship that stands the test of time. Many of our Dartford clients return for future projects or recommend us to family and neighbours — something we’re incredibly proud of.
From Victorian homes near the town centre to modern developments in areas like Stone, Greenhithe, and Wilmington, we understand the construction styles and planning considerations that shape Dartford properties. Our long-standing team ensures every project runs smoothly, safely, and with clear communication throughout.
Decades of Experience in Dartford
With more than 30 years of building experience across Dartford and the DA postcode areas, we bring deep knowledge, skilled craftsmanship, and proven reliability to every project — from small upgrades to large extensions and renovations.
Family-Run & Recommended Locally
Since 1994, we’ve been a family-run business focused on honesty, clear communication, and quality workmanship. Many of our projects in Dartford come through word-of-mouth recommendations — a reflection of the service we provide.
Transparent, Fair Pricing
We believe in straightforward, honest pricing. Every quote we provide is clear and itemised, with no hidden extras or unexpected costs. You always know exactly what you’re paying for.
Smooth, Well-Managed Projects
From planning and design to construction and finishing, we manage the entire process in-house. With one reliable team and a dedicated point of contact, your project stays organised, efficient, and stress-free.
Choose a Builder You Can Rely On
Many homeowners in Dartford come to us after experiencing poor communication, cutting corners, or unfinished work from other builders. That’s why our approach is built around reliability, honesty, and high-quality workmanship — values we’ve followed since day one.
Our long-standing team is committed to doing things properly. We communicate clearly, maintain a tidy site, and ensure your project is completed to the highest standard. If you’d like reassurance before getting started, feel free to browse our recent reviews from clients across Dartford and the surrounding areas.
Our Experience in Numbers
Completed Projects across Bexley, Kent & South East London
Work from Repeat Clients & Referrals.
Years in Business Since 1994
Recent Building Projects in Dartford
We’ve carried out a wide range of building projects across Dartford, from kitchen extensions and loft conversions to full home renovations and new build developments. Every project is delivered by our skilled, long-standing team and reflects the high standard of workmanship our customers expect.
Below is a small preview of the type of work we regularly complete for homeowners in Dartford, Crayford, Wilmington, Greenhithe, and nearby areas. To see more, explore our full portfolio.
What Dartford Homeowners Say About Our Work
We’re proud to support families and homeowners across Bexley, many of whom return to us for future projects or recommend us to friends, neighbours, and colleagues. Here are a few comments from clients we’ve recently worked with in the Bexley area.
FAQ — Building Services in Dartford
Before starting a building project in Bexley, most homeowners have questions about planning, timescales, costs, and the type of work we carry out. Below are some of the most common queries we receive from customers across Bexley, Bexleyheath, Sidcup, and the surrounding areas — along with straightforward answers to help you move forward with confidence.
Yes — we work across Dartford and the surrounding DA areas, including Crayford, Wilmington, Stone, Greenhithe, Swanscombe, and nearby locations. If you're unsure about your area, feel free to ask.
Costs depend on the size, design, and structural requirements. We provide a free, detailed, itemised quote so you have full transparency before any work begins.
Some projects fall under permitted development, while others require full planning permission. We can manage everything for you, including drawings and applications through Dartford Borough Council.
It varies by project type — extensions typically take 8–12 weeks; loft conversions 6–10 weeks. After a site visit, we’ll provide a clear, realistic timeframe specific to your home.
Just contact us for a friendly conversation. We’ll answer your questions, arrange a site visit if needed, and provide honest advice tailored to your Dartford property.
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.
Ready to Start Your Project in Dartford?
If you're planning an extension, loft conversion, renovation, or new build in Dartford, our experienced team is here to help. Whether you're exploring ideas or ready to begin, we offer clear guidance, fair pricing, and reliable workmanship.