If you’re planning a new build, home extension, conservatory, or garden room anywhere across Dorset, choosing a team that can handle the entire project — including the electrical work — saves you time, money, and a lot of hassle. That’s exactly what we do at Dorset Extensions Group.
We project manage every build from start to finish, complying fully with Building Regulations, and where specialist trades are needed, we only bring in people we know meet our own high standards. Our sister company, Dorset Extensions Electrical, means your wiring, rewiring, and installations are handled by the same trusted team — not a separate contractor you have to chase.
We work with homeowners throughout Weymouth, Portland, Dorchester, Chickerell, Preston, Upwey, Bridport, Wareham, Yeovil, Poole, and the surrounding Dorset villages.
Why Choose a Local Dorset Builder?
Dorset’s mix of coastal towns, historic market towns, and rural villages means every build comes with its own quirks. A garden room in exposed, coastal Portland needs different consideration than an extension tucked into a conservation area in Dorchester. Working with a team that knows the local planning departments, building control officers, and typical ground conditions across the county means fewer surprises and a smoother build from start to finish — and as NAPIT-registered, Checkatrade-approved builders, we’re used to working to that standard.
We regularly work in and around:
- Weymouth — our home patch, from seafront properties to modern estates
- Portland — coastal builds requiring extra weatherproofing consideration
- Dorchester — conservation area extensions and heritage-sensitive builds
- Chickerell — family home extensions and new-build plots
- Preston — garden rooms and conservatory-style extensions
- Upwey — countryside extensions and outbuilding conversions
- Bridport — market town properties and rural new builds
- Wareham — riverside homes and historic property extensions
- Yeovil — larger new-build developments and family extensions
- Poole — harbourside properties, modern extensions, and high-spec garden rooms
- Surrounding Dorset villages — from small cottage extensions to full self-build projects
New Builds
Whether you’re building your dream home from the ground up or developing a small residential project, our team manages the process from initial groundworks through to a finished, move-in-ready property, including concrete bases, drainage and soakaways, roofing, and full electrical installation and certification.
Building a new home is one of the biggest projects most people will ever take on, and having one point of contact for the build and the electrics means nothing falls through the cracks between trades.
House Extensions
Extensions are one of the most popular ways Dorset homeowners add space and value without the upheaval of moving. We handle single and double-storey extensions, loft conversions, and full interior reconfigurations across all the areas we cover — and once your extension is built, we can fit your new kitchen or bathroom to the same standard too.
A well-planned extension isn’t just about bricks and mortar — it’s about making sure the electrics are planned in from day one. That’s why our electrical team works alongside the build team from the outset, covering:
- New circuits for kitchens, utility rooms, and living spaces
- Additional sockets, lighting, and switches positioned exactly where you need them
- Consumer unit upgrades where extra load requires it
- EV charger and solar panel installation for the more energy-conscious build
Planning the electrical layout alongside the build — rather than as an afterthought — avoids costly changes later and gives a much cleaner finish.
Garden Rooms & Conservatory-Style Extensions
Garden rooms remain one of our most popular projects, particularly for homeowners in Preston, Upwey, and the villages around Bridport and Dorchester who want extra light and space without extending their footprint into a full extension. Whether it’s a home office, a garden studio, or a bright conservatory-style space to enjoy the garden all year round, we build to a genuine WOW-factor finish — and most garden rooms don’t need planning permission.
A garden room wired properly from the outset, with weatherproof outdoor sockets and dedicated lighting circuits, becomes a room you’ll actually use in every season, not just for six weeks in summer.
Conservatories
Alongside our garden rooms, we also design and build traditional conservatories for homeowners who want that classic glazed extension look — flooding a kitchen, dining room, or lounge with natural light. As with all our builds, conservatories are project managed from groundworks through to the finished glazing, and we handle the UPVC windows and doors as part of the same job, so there’s no need to bring in a separate supplier.
Just like our garden rooms, a conservatory is only as good as the electrics behind it. We fit dedicated lighting circuits, additional sockets, and heating solutions so your conservatory is comfortable to use year-round rather than just in the summer months.
Electrical Work, Done Properly
Dorset Extensions Electrical is NAPIT-registered and covers the whole of Dorset, whether the work is part of a larger build or a standalone job. Our services include:
- Full and partial rewiring
- Consumer unit upgrades
- New installations, repairs, and maintenance for domestic and commercial properties
- New build electrical packages
- EV charger installation
- Solar panel installation
Because our building and electrical teams are part of the same group, you get one seamless project — no chasing separate contractors, no gaps in communication, and no guesswork about who’s responsible for what.
Serving Weymouth, Poole, and All of Dorset
From coastal Portland to the villages dotted between Wareham and Bridport, and out towards Yeovil, we bring the same standard of workmanship and attention to detail to every job, big or small. Our staff are courteous, tidy, and respectful of your home and property at every stage.
Call Dorset Extensions Group today on 01305 310 310 or email info@dorsetextensionsgroup.co.uk for a free, no-obligation quotation.