Finding the right extension builders in London can totally transform your home. With so many contractors out there claiming they’re the best, it’s tough to know who’s really got the experience and reliability you need.
All Well Property Services stands out as one of London’s premier extension builders, offering 15 years of experience, comprehensive project management, and a 10-year guarantee on all work. Their team handles everything—from the first sketches and planning permission all the way through to the final touches—so your extension project actually runs smoothly.
Maybe you’re planning a kitchen extension, a loft conversion, or a full home renovation. Picking builders who really get London’s property quirks makes a world of difference.
The right team guides you through planning headaches, gives you honest pricing, and delivers the kind of craftsmanship that adds real value to your place.
Key Takeaways
- All Well Property Services offers comprehensive extension services with 15 years of experience and manages projects from design to completion
- The company provides transparent pricing, planning permission support, and carries up to £5 million public liability insurance
- They specialise in various extension types including kitchen extensions, loft conversions, and serve South London, South West London, and West London areas
Why All Well Property Services Are Among the Best Extension Builders in London
All Well Property Services has carved out a strong reputation in London’s crowded extension market. Their 15 years of hands-on experience and full project management really set them apart.
Outstanding Track Record in Home Extensions
With 15 years of experience, All Well Property Services brings a lot to every home extension job. Their portfolio shows consistent results across all sorts of London homes.
They’ve built a solid name through quality workmanship and reliable service. Reviews often mention their professional attitude and eye for detail.
Their team knows London’s building challenges inside out, which helps them handle tricky planning rules and stick to deadlines.
They carry up to £5 million public liability insurance. That’s a big deal for homeowners making major investments.
Expertise Across a Range of Extension Types
All Well Property Services covers a wide range of extension styles. They handle kitchen extensions, loft conversions, and rear additions with equal skill.
Kitchen extensions get a lot of focus from their builders. They’ll design spaces that fit your taste and how you actually live.
They do both single-storey and double-storey extensions, adapting to the quirks of your property and the space you’ve got to work with.
Loft conversions are another specialty. The team knows what it takes structurally to make those work safely and legally.
They also tackle commercial property extensions. That kind of versatility says a lot about their construction chops.
Comprehensive One-Stop Shop Solutions
All Well Property Services works as a true one-stop shop for extensions. You won’t need to juggle a bunch of different contractors.
Their all-in-one approach covers:
- Planning applications and permits
- Structural calculations and engineering
- Project management from start to finish
- Builders and skilled trades
- Architectural services for your designs
This setup cuts out the hassle of chasing different teams. You get one point of contact the whole way through.
They use advanced project management tools to track every step. You’ll always know where things stand, and they’ll flag any bumps in the road early.
Competitive pricing with no hidden costs means you get the full picture up front. That’s a relief when you’re budgeting for a big project.
Commitment to Quality Workmanship
Quality workmanship is at the heart of what they do. Their builders focus on details and getting things right.
They use only premium materials that last. It’s not just about looks—the structure matters for the long haul.
Client satisfaction drives every decision, from the first chat to the final sign-off. They keep the conversation open so you feel heard.
With a 10-year guarantee on all work, they back up their promises. That’s real peace of mind.
Safety’s a priority, too. Their builders follow strict standards to protect everyone on site.
Comprehensive Extension Building Services
All Well Property Services tackles all the big home extension types. Their teams specialise in everything from single-storey rear extensions to full-on loft conversions.
House Extensions
House extensions are the most flexible way to gain space. You can pick from single-storey rear extensions, double-storey additions, or side return options.
Popular extension types include:
- Single-storey rear extensions
- Double-storey extensions
- Side return extensions
- Wrap-around extensions
Single-storey extensions work great for ground-floor living. They usually cost less and the planning side is simpler.
Double-storey extensions add serious space but need more structural work. You get extra rooms on both floors this way.
Side return extensions fit Victorian terraced houses especially well, making the most of those narrow side alleys.
The team takes care of everything: design, planning, structural calcs, and building regulations.
Kitchen Extensions
Kitchen extensions can totally change how you use your home. Most people go for rear extensions that open up the kitchen, dining, and living into one big space.
Key benefits include:
- More natural light with bi-fold doors
- Better flow between inside and garden
- Modern open-plan living
- Higher property values
Single-storey kitchen extensions usually run 3-8 metres deep, depending on your garden and planning rules.
You can add features like roof lanterns or big windows to let in daylight. It makes a real difference, especially in London’s gloomier months.
The builders try to work around your routine. They’ll talk through temporary kitchen setups to keep the hassle down.
Planning permission depends on the size and where you live. Sometimes you don’t even need it, thanks to permitted development rights.
Loft Conversions
Loft conversions turn wasted roof space into bedrooms, offices, or storage. Usually, it’s cheaper than building outwards.
Common loft conversion types:
- Dormer conversions – add windows and floor space
- Hip-to-gable conversions – extend sloped roof areas
- Mansard conversions – reshape the whole roof
Dormers work for most houses and budgets, adding headroom and sunlight.
Hip-to-gable conversions are perfect for semis, giving you more usable space by straightening out the roof.
Building regulations are a must for all loft jobs. The team sorts out the applications for structure, fire safety, and insulation.
Most loft conversions don’t need planning permission, but if you’re in a conservation area or have a listed building, things get trickier.
Expert Management of Your Home Extension Project
All Well Property Services blends personal design advice with hands-on project management. Their approach helps your extension project go as smoothly as possible, from first ideas to the final walkthrough.
Personalised Design Consultation
Your project kicks off with a detailed consultation to figure out what you want and need. They listen, then suggest design options that actually fit your budget.
They use design tools so you can see different layouts and materials before anything’s built. That way, you’re happy with the plan right from the start.
Key consultation elements include:
- Budget planning and clear costs
- Lifestyle tweaks to keep the mess down
- Custom designs for your property
- Advice on picking the right materials
Expect site visits and a few design tweaks. They’ll give honest feedback about what’s doable for your space and budget.
Dedicated Project Management
A dedicated project manager oversees everything. They coordinate trades, keep an eye on the schedule, and update you regularly.
Project management tools track progress. You’ll get milestone updates and heads-up if anything needs adjusting.
The project manager handles:
- Trade coordination – Scheduling everyone from electricians to plumbers
- Material procurement – Making sure supplies arrive on time
- Quality checks – Inspections at each stage
- Communication – Weekly updates and fast responses to issues
This organised approach keeps things on track and within budget. It just works better than winging it.
Attention to Detail Throughout Construction
Quality really matters at every step. The builders stay focused on precision and safety, and they keep you in the loop.
Every part of your extension gets attention, from the big structural stuff to the little finishing details.
Construction standards include:
- Following all building regulations
- Using tough, long-lasting materials
- Thinking about the environment and energy efficiency
- Regular safety checks
The team does thorough checks before moving on to each new phase. That way, your extension meets your expectations—and the law.
Specialist Services: Loft and Basement Conversions
Turning unused spaces into something valuable is a smart move. These conversions turn forgotten areas into rooms you’ll actually use, making the most of your property.
Loft Conversions for Added Living Space
Your loft might be the most underused part of your home, but it’s full of potential. You can create extra bedrooms, a bathroom, or even a home office up there.
Most London homes have roof spaces that convert pretty easily—usually no need to mess with the main structure.
Popular loft conversion types include:
- Roof light conversions – the simplest, using the existing roof
- Dormer conversions – bump out the roof for more headroom
- Hip-to-gable conversions – great for Victorian terraces
- Mansard conversions – if you want to max out the space
Most conversions need planning permission, unless you’re just adding a basic roof light. You’ll always need building regs approval for safety and structure.
The conversion process usually takes 6-8 weeks. That covers the structural work, insulation, electrics, and finishing touches.
Your builder should sort the permits and arrange inspections as things progress.
Loft conversions can add 15-20% to your property value. In London, where every square metre matters, that’s a big deal.
Basement Conversion Solutions
Basement conversions let you tap into the space below your house. Lots of London’s Victorian and Edwardian homes have cellars that work perfectly for this.
Common basement conversion uses:
- Extra bedrooms with en-suites
- Home cinemas or entertainment rooms
- Home offices and study spaces
- Utility rooms and storage
Waterproofing is non-negotiable for basements. Your builder needs to install proper damp-proofing systems and ventilation to keep moisture away.
Planning permission depends on how much digging you’re doing. Either way, you’ll need building regs approval for safety and escape routes.
The job involves excavation, waterproofing, strengthening the structure, and fitting out the inside. Most projects run 8-12 weeks, but bigger or trickier ones can go longer.
Basement conversions often add 10-15% to your property’s value. Plus, you get that extra space you can actually use.
Transparent Pricing and Planning Support
All Well Property Services gives you upfront costs—no hidden extras. They handle all the planning headaches, too.
You get a free consultation and expert help with the approval process. That’s a relief if you’re new to all this.
Free Quotes and Honest Assessments
Reach out and you’ll get a completely free quote. Someone from their team visits your place, checks out what you want, and gives you detailed pricing.
They believe in transparent pricing from the start. You know the full cost before work begins—no nasty surprises.
Their quote covers everything: materials, labour, timelines, and any tricky bits that might crop up.
Key benefits of their free quotes:
- No pressure to go ahead
- Clear breakdown of costs
- Advice on design options
- Estimated completion timeline
You can make a proper decision about your extension, knowing exactly what you’re in for.
Navigating Planning Permission and Building Control
All Well Property Services takes care of planning permission and building control. Their team knows London’s maze of regulations inside out.
They’ll prep the drawings, submit the paperwork, and deal with the council for you. It’s one less thing to stress over.
Their planning services include:
- Feasibility checks
- Architectural drawings
- Planning submissions
- Building control notifications
- Liaising with council planners
With 15 years’ experience, they know what usually gets approved and can flag issues early. That’s pretty reassuring.
You’ll get regular updates on your application and any requests from the council. No radio silence.
Serving Greater London With Trusted Extension Expertise
All Well Property Services works across South, South West, West, North, and North West London. They tackle everything from refurbishments to full new builds.
Local Knowledge and Coverage Across the Capital
Greater London is a patchwork of planning rules and building regs. Each borough is different.
The team knows these local quirks. They regularly work in places like Islington, Camden, and Hampstead, so they get what flies with each council.
Coverage areas include:
- North and North West London
- South and South West London
- West London
- Central London boroughs
They handle planning applications for each area and know the local standards. That can save you a lot of time and hassle.
Local knowledge really counts in conservation areas. Some London spots have strict extension rules, but they know which designs and materials get the nod.
Refurbishments and Renovations Handled With Care
Refurbishments in older London homes need careful planning. Lots of places need new electrics or plumbing when you add an extension.
The team handles full renovations alongside extensions—kitchens, bathrooms, living spaces, you name it. They coordinate all the trades to keep things moving.
Our refurbishment services include:
- Structural repairs
- Upgrading electrics and plumbing
- Interior design and finishes
- Energy efficiency upgrades
Victorian and Edwardian homes need a gentle touch. The builders keep original features where they can, while adding modern comforts.
Safety comes first. They use dust control and make sure there’s safe access, so your family stays protected during the work.
New Build Projects for Modern Living
New build extensions give you a blank slate. They’ll design spaces that fit your lifestyle and match your property’s style.
Modern builds use energy-saving materials and methods. That means lower heating bills and a cosier home. Proper insulation and ventilation are always included.
New build extension types:
- Single-storey rear extensions
- Double-storey additions
- Loft and roof extensions
- Side return extensions
Contemporary designs can work with London’s old houses, too. Glass panels and modern touches create light, open spaces. They always try to balance new with old.
Planning permission depends on the extension type, but they handle all the paperwork and building control. Their designs meet current regs and energy standards.
Frequently Asked Questions
If you’re looking for an extension builder in London, expect prices from £2,000 to £3,500 per square metre. Most reputable builders offer planning help, structural calculations, and project management as part of the package.
What factors should be considered when choosing a top extension builder in London?
Look for builders with solid local experience in London homes. Make sure they handle planning applications and admin for you.
Check their public liability insurance—All Well Property Services has up to £5 million in coverage.
Review their previous work in your area. North, South, and West London can be really different markets.
Ask about their project management style. The best builders use good tracking tools and keep you in the loop as the project moves along.
How can I evaluate the track record and reliability of a property extension service in London?
Ask for references from recent clients. Give them a call and find out how the project went.
Check how many years they’ve been in the business. All Well Property Services has 15 years under their belt.
Look for online reviews—many top builders have ratings above 4.6 stars.
Ask if they guarantee their work. The best companies offer long-term warranties, sometimes up to 10 years.
What are the potential costs involved in constructing an extension with a reputable London builder?
A 30m² extension in London usually costs between £60,000 and £105,000. The price depends on materials, labour, and how complex the work is.
Single-storey extensions are generally £2,000–£2,500 per square metre. Two-storey ones run £2,500–£3,500 per square metre.
If you’re doing a kitchen extension, factor in extra for fitted units and appliances. Don’t forget about the cost of electrics, plumbing, and gas.
Planning permission fees are £206 for householder applications. Structural calculations and building control add more to the bill.
Are there specific qualifications and certifications one should expect from high-quality London extension builders?
If your project involves gas, look for Gas Safe registered engineers. That’s non-negotiable for safety and compliance.
For bathrooms and water, check for Watersafe certified plumbers. It shows they know their stuff with water systems.
Make sure they have public liability insurance. Proper builders always have this covered.
Ask about their trade qualifications and memberships. The best builders are usually part of relevant industry groups.
How do London’s building regulations impact the process of selecting an extension builder?
Your builder needs to understand how London’s planning rules work. Every borough is a bit different, especially for permitted development rights.
Pick builders with experience in London’s building control system. They should handle the paperwork and ensure everything’s up to code.
Side return extensions in terraced houses need special know-how. Make sure your builder gets party wall agreements and structural needs.
Conservation area rules affect lots of London homes. Choose builders who know how to work with heritage requirements and the approval process.
What services do leading extension builders in London typically offer beyond basic construction?
Top builders don’t just handle construction—they usually provide architectural design services too. They’ll help you with planning applications and guide you from the first sketch to the final touches.
Most take on project management during the build. That means they juggle scheduling, source materials, and keep all the subcontractors in sync.
Quality builders often tackle refurbishments as well as new builds. They might install bathrooms, fit kitchens, or handle those tricky internal changes you want.
Some go further, offering loft conversions, basement extensions, and even full property renovations. You might find a few who cover emergency repairs or offer yearly maintenance contracts, which is honestly a relief if you ever need them.
