We are London’s number 1 design and build company
Award Winning Design & Build Across London & the South East of England
Get My Free EstimateEast Horsley, Surrey
Extensions, loft conversions, renovations and new homes across London and the entire South East of England, designed, approved and built by one experienced team.
- from 500+ reviews
- 4.9★
- structural guarantee
- 10-year
- projects completed
- 800+
- London & the South East
- Est. 2017
Real Projects
Watch Real Projects Come Together
See the work behind the finish — on-site, walkthroughs and start to handover.
4.9★ from 500+ reviews on Google, Houzz, Reviews.io & TrustATrader
Client Stories
Hear From Our Clients
Real projects, real results — straight from the people we've worked with.
How your project works
Six clear stages, from first enquiry to completion — whether we design and build, or build from your drawings.
For clients who need the whole project managed: design, planning, building regulations and construction, from initial enquiry through to completion.
Step 1: Initial Consultation & Feasibility
Timeline: 1–3 days
Initial consultation to discuss requirements, ideas and budget.
Step 2: Architectural Design & Drawings
Timeline: 1–4 weeks
Architectural drawings and proposed layouts.
Step 3: Planning Permission
Timeline: 6–12 weeks (estimated)
Planning application preparation and submission.
Step 4: Structural Engineering & Building Regulations
Timeline: 1–3 weeks, depending on complexity
Structural calculations and drawings.
Step 5: Contract & Building Works
Timeline: Typically 4–20+ weeks, depending on project type
Begin construction and manage all building works.
Step 6: Completion & Handover
Final client walkthrough and handover.
For clients who already have architectural drawings and require a construction contractor.
Step 1: Submit Your Drawings
Timeline: 1 day
Upload architectural and structural drawings.
Step 2: Site Survey & Consultation
Timeline: 1–3 days
Site inspection and measurements.
Step 3: Detailed Construction Quotation
Timeline: 1–5 working days
Labour, materials and project specifications.
Step 4: Contract & Project Planning
Timeline: 1–5 working days following agreement, subject to readiness
Agree the final quotation and sign the JCT contract.
Step 5: Building Works
Timeline: Typically 4–20+ weeks, depending on project type
Full construction management and quality control.
Step 6: Completion & Handover
Final handover to the customer.
All timelines are indicative. Your project-specific schedule is confirmed before construction.
Featured projects
Real homes. Real results.
What we do
One team. Every discipline.
From the first sketch to the final handover: architecture, residential, commercial and new builds, delivered under one accountable roof.
Residential
Home Extensions
Rear, side, wrap-around and double-storey, planned, approved and built by one team.
Residential
Loft Conversions
Dormer, hip-to-gable and mansard lofts, with en-suites and storage built in.
Residential
Full House Renovations
Whole-home refurbishments, from period restorations to full structural overhauls.
Architecture
Architectural Design
Planning drawings, structural calculations, building regulations and 3D visualisations.
New Builds
New Build Homes
Ground-up new homes and land-led developments, delivered end to end.
Commercial
Commercial Fit-Out & Construction
Offices, retail, restaurants, gyms and clinics: Cat A and Cat B fit-outs with end-to-end M&E.
Looking for something specific?
Explore all servicesCommercial
Commercial fit-outs & construction.
Commercial construction and fit-outs across London & the South East: offices, restaurants, gyms, retail and healthcare, with full project management by LINX.
Office Fit-Outs
From £45,000
Retail Fit-Outs
From £30,000
Restaurant Fit-Outs
From £50,000
Gym Fit-Outs
From £60,000
Beauty, Spa & Wellness
From £30,000
Medical & Healthcare
From £55,000
Industrial & Warehouse
Price on application
Commercial New Builds
From £260,000
Images are illustrative design visuals
LINX Glass · Our glazing division
The glass that makes a LINX extension.
Glazing, bi-folds, roof lights and structural glass — the openings that define a LINX extension, from the group's glazing division, LINX Glass.
Working inside the LINX group means glazing can be drawn into an extension at the design stage, with the openings, steels and roof lights planned together. It is just as available on its own — a new set of doors, a roof lantern or an acoustic upgrade.
- FENSA-certified fitters
- A+ energy-rated glazing
- 10–25 year manufacturer guarantees
- FENSA, TrustMark and FMB accredited
The LINX Glass ranges
Slimline Aluminium
Ultra-slim sightlines and architect-grade precision — the premium architectural range.
Premium Aluminium
Bold aluminium windows, bi-folds, sliding doors and commercial shopfront systems.
uPVC
Clean, reliable windows and doors for the home — the full uPVC range.
Composite Doors
Composite entrance doors in contemporary, classic and cottage styles.
Roof Glazing
Roof lanterns, flat skylights, pitched rooflights and roof windows.
Free Design Consultation
Free consultation with our head designer, Thomas
Talk your project through with Thomas Phillips, our Head of Design. Get honest advice on what you can build, planning, budget and next steps — pick a time that suits you.
Book with Thomas4.9★ from 500+ reviews
What our clients say.
Customer Reviews
Read what our customers say about our services
★★★★★
Outstanding architectural service! Professional team, clear communication, transparent pricing, and excellent results. They handled everything efficiently, from surveys and drawings to structural work and planning. Great value for money. Highly recommended to anyone needing architectural services!
Josefa M. · Reviews.io ·
★★★★★
Our new infill kitchen expansion and the Linx team's thorough makeover have made us very delighted. They kept us updated at every turn and made sure the job was finished to a high standard, making the entire process easy and stress-free. Our expectations were surpassed by the exquisite finish, superior craftsmanship, and high-quality materials. Our new kitchen is the ideal area for cooking, dining, and spending time with family because it is roomy, light-filled, contemporary, and functional. We would heartily suggest Linx to anyone thinking about remodelling or expanding their kitchen.
Michael S. · Reviews.io ·
★★★★★
We had full home renovation, extension and loft conversion done by linx design and build and I couldn’t be more happier with the results. They’re very professional and the job was completed before the schedule. I highly recommend them to anyone looking to get their house done up.
Smita · Reviews.io ·
★★★★★
LINX Design & Build did a fantastic job on my home extension. The quality of work was excellent, and I'm extremely happy with the results. Highly recommend!
Verified client · Reviews.io ·
★★★★★
We are extremely happy with the work completed by LINX Design & Build on our home in Surrey. The new rear extension has transformed our property, creating a larger, brighter and more open kitchen and living area with a much better connection to the garden. The bathroom improvements, new windows and doors, and external landscaping have also made a huge difference. The team managed the entire project professionally, kept everything organised and delivered a high-quality finish within 10 weeks. We would highly recommend LINX Design & Build to anyone looking for a reliable team to transform their home.
Nathanial M. · Reviews.io ·
★★★★★
Our new home extension has made us very pleased! Throughout, the team was dependable, kind, and professional. Our living area has drastically changed thanks to the new open-plan design, bi-fold doors, and natural light. Excellent communication, reasonable costs, and excellent job from beginning to end. Strongly advised
James R. · Reviews.io ·
Our Trusted Partners
AUTHORISED SUPPLIERS
Our team
The People Behind LINX
An in-house team delivering every project from first sketch to final handover — backed by 60+ tradesmen on site.
Gary Pal
Managing Director
Cristian Ghertan
Construction Director
Ryan Anthony
Project Manager
Atul Singh
Project Manager
Steve McDermott
Project Consultant
Alexis Urbina
Business Development Manager
Vishal Gajjar
Business Growth Strategist
Thomas Phillips
Head of Design
Manisha Silwal
Customer Service
Joseph Gomes
Tech / IT
With 800+ projects completed, a 10-year structural guarantee and 4.9★ from 500+ reviews on Google, Houzz, Reviews.io & TrustATrader, we're London's most trusted design and build company. We offer fixed-price quotes and handle everything from design to completion – so you get one team, one vision, one exceptional result.
Yes! We provide completely FREE, no-obligation quotes and consultations. Our expert will visit your property, discuss your ideas, and provide a detailed fixed-price quote. There's no pressure and no commitment – just honest, professional advice.
We cover all of Greater London and the South East. From Central London to the suburbs, our experienced teams are ready to transform your home. Book a FREE consultation to discuss your project, wherever you are.
Unlike estimates that can change, our fixed-price quotes are exactly that – fixed. The price we agree is the price you pay, with no hidden extras or surprise costs. We've built our reputation on transparency and trust.
Every project comes with our comprehensive 10-year structural guarantee on all structural work. We're so confident in our craftsmanship that we stand behind it completely. Your investment is protected, giving you total peace of mind.
Absolutely! We're a true design-and-build company. From initial concepts and 3D visualisations through planning, building regulations, construction, and finishing – one dedicated team handles everything. No coordination headaches, no miscommunication, just seamless delivery.
We can typically start within 4–8 weeks of finalising your design, depending on current demand. During your FREE consultation, we'll discuss your timeline and do everything we can to accommodate your schedule.