House Extension in Staines Upon Thames
As one of London & Surrey’s trusted extension specialists, KT5 Construction delivers a smarter, cost-effective way to expand your home in Staines Upon Thames. From first ideas to final handover, we combine careful planning, transparent pricing, and practical cost-saving strategies—so you can create the space you need without stress or overspending.
At KT5, clear communication is everything. We keep you informed at every stage to ensure your vision stays on track. Visit KT5 Construction to learn more about how we work.
What We Do
Building Construction
New Builds, Extensions, Conversions, Renovations
General Building
Property Maintenance, Handyman Service, Decorating
Design
Planning, Design, Project Management, Quality Checking
House Extension in Staines Upon Thames: How We Build Better
Why Choose KT5 Construction for Your Staines-upon-Thames Extension
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Local know-how – We understand Staines-upon-Thames’ mix of 1930s semis, riverside terraces, and post-war homes—so designs maximise space while respecting the look and feel of your street.
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End-to-end service – One accountable team handling design, permissions, build, and finishing.
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Fixed costs, clear programme – No surprises—just an agreed scope, a transparent schedule, and regular progress updates.
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Value engineering – Smarter specifications that stretch your budget without compromising safety, quality, or longevity.
Start planning your House Extension in Staines Upon Thames with a team that prioritises clarity, quality and cost control.
Extensions Tailored to Staines Upon Thames Homes
We design and build a wide range of extensions to suit local property types:
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Single-storey rear kitchen/dining extensions for open-plan family living
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Side-return and wrap-around layouts to unlock underused space
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Double-storey additions to add bedrooms, ensuites, and storage
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Loft conversions and dormers to maximise the attic footprint
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Garden rooms and orangeries for flexible home-office or leisure space
Every project is carefully planned to deliver quality, value, and compliance in established residential streets.
Our Value-First Approach
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Budget clarity – Fixed-price contracts to protect against hidden extras
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Specification smarts – Recommendations that balance aesthetics, performance, and lifecycle costs
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Transparent comms – Detailed programmes, site updates, and clear payment schedules
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Aftercare mindset – We build for long-term performance, not short-term fixes
The Extension Process: From Idea to Handover
Consultation & Feasibility (Includes Free Design When You Build with KT5)
We start with a home or video visit to understand your goals, budget, and timeline. Choose KT5 as your builder and we’ll include architectural and structural design to get your scheme moving from day one.
Planning, Permissions & Compliance
We handle permitted development checks, planning applications, party wall coordination, and building control approvals—streamlining the paperwork so you don’t have to.
Construction & Project Management
Your dedicated site manager coordinates trades, inspections, and quality checks—from groundwork and structure to electrics, plumbing, and finishes—so your extension is delivered safely, neatly, and to a high standard.
Client Testimonials
“You made it so simple” – Just wanted to say thank you for making what I thought would be a difficult process much easier than I had imagined.
Thank you for my brand new house! The refurbishment and attention to detail makes it feel like a brand new house, but without the expensive cost of moving.
Just wanted to thank you for the work carried out to my new bathroom, I will definitely be in touch shortly to talk about my proposed kitchen extension.
Why Staines-upon-Thames Homeowners Choose KT5 Construction
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Local experience across Staines-upon-Thames and wider Surrey
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No-surprise pricing and clear payment schedules
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Rated for punctuality, service, and attention to detail
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Smart, long-term solutions that add real value
House Extension in Staines Upon Thames — Space Made Simple
Ready to get your House Extension in Staines Upon Thames delivered on programme and within budget? KT5 Construction manages design, permissions and build with fixed pricing, clear timelines and tidy, on-site delivery. Book your free consultation to see how we’ll save you time, money and stress—while creating the space you’ve envisioned.
Learn more about us at KT5 Construction or start here: House Extension in Staines Upon Thames.
Frequently Asked Questions
How much does a Staines-upon-Thames house extension cost?
Costs vary by size, design complexity, and specification. As a guide:
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£1,800–£2,500 per m² for well-specified standard builds
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£2,800+ per m² for high-spec finishes or complex structures
We provide fixed pricing and can phase works to suit your budget.
Do I need planning permission for an extension in Staines Upon Thames?
Many single-storey rear extensions fall under Permitted Development, but constraints (heights, depth, materials, conservation, flood-risk areas) still apply. We’ll confirm your route—PD or full planning—and manage the application and building control for you.
How long does an extension take?
Typical timelines (subject to scope and season):
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Single-storey: ~10–16 weeks
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Double-storey / structural reconfiguration: ~16–28 weeks
Your programme will be agreed up-front and updated throughout the build.
Our Services
House Extensions
KT5 Construction provides professional house or Property Renovations Services in Ash, tailored to your unique needs. Whether you’re expanding your kitchen or creating an open-plan living area, we deliver high-quality results.
Kitchen Refurbishment
At KT5 Construction, we are specialists in kitchen refurbishment in Surrey and surrounding areas, delivering bespoke designs that enhance your living space and add value to your home.
Loft Conversions
At KT5 Construction, we specialise in creating stunning loft conversions in Surrey that add space, value, and style to your home. From dormer loft conversions to luxury loft designs, our expert team handles every detail with professionalism and precision.
Groundworks
At KT5 Construction, we pride ourselves on being the go-to groundwork Company in London, delivering top-quality services for residential and commercial projects.
Bathroom Design & Installation
Your bathroom should be more than just functional—it should reflect your personal style and offer a space to unwind. At KT5 Construction, we specialise in Surrey bathroom design and installation, delivering tailored solutions that blend elegance, practicality, and luxury.
Property Refurbishment
Our Ewell Road Surbiton Project showcases the full spectrum of our refurbishment expertise. By managing every detail, from architectural consultation to final finishes, KT5 ensures each element meets the highest standards.
New Build Homes
As a trusted New Build Builder in Surrey, KT5 Construction has been at the forefront of creating bespoke, high-quality homes designed to meet modern living standards.
Architecture & Design
Expert architectural planning & creative design solutions for residential and commercial projects in Surrey & London.
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