About Niwaway Construction
NiwaWay Construction is a South London–based construction company founded by Konrad Niwa, bringing over a decade of hands-on experience. Built on trust, quality, and meticulous attention to detail, we deliver work that reflects each client’s vision.
Proudly serving London, including areas like Streatham, Balham, Notting Hill and surrounding neighbourhoods, we provide reliable, high-quality building services for homeowners and businesses alike. Whenever you’re searching for construction companies nearby and need builders for renovation or structural work, our team offers dependable craftsmanship with a local touch. From small jobs to full-site developments, we prioritise clear communication and a seamless project experience—making us an ideal partner for construction across South London and beyond.
Our skilled, dedicated team creates spaces that are functional, lasting, and beautifully finished—building strong homes and even stronger community relationships.
Our Services
Structural Construction – House extensions, loft conversions, structural repairs, general building, and garage or commercial conversions
Planning & Utilities – Project planning, management, and complete plumbing and electrical installations
Interior Renovation – Full-house, bathroom, and kitchen refurbishments, plus plastering, rendering, tiling, painting, decorating, and bespoke carpentry
Outdoor & External Works – Patios, paving, and fencing tailored to elevate your outdoor space
No matter the size or complexity of the project, NiwaWay delivers results you can rely on—every step of the way.
Proud Member of the Federation of Master Builders
NiwaWay is a verified member of the Federation of Master Builders (FMB), demonstrating our commitment to quality craftsmanship, professionalism, and trust. View Certificate
Customer Reviews
Why Choose NiwaWay?
Client Satisfaction
Your satisfaction is our priority. We work closely with you to bring your vision to life.
Reliability
Count on us for punctuality, transparency, and professionalism at every stage of your project.
Experience
With years of experience in the construction industry, we bring a wealth of knowledge and expertise to every project.
Quality
Our commitment to high-quality workmanship which exceeds your expectations.
Frequently Asked Questions
What services do you offer?
NiwaWay specialize in house extensions, loft conversions, kitchen and bathroom renovations, and general building work. We also provide property maintenance, structural construction, garage conversions, plumbing and electrical installations, plastering, tiling, painting, bespoke carpentry, and outdoor works like patios, paving, and fencing—delivering high-quality results inside and out.
How do I get started?
Simply contact us to schedule a consultation. We’ll discuss your needs, conduct a site visit, and prepare a tailored quote.
Are your quotes free?
Yes. We offer no-obligation, free quotes after a consultation and site visit.
Are you fully insured?
Absolutely. Niwaway Construction is fully insured with public liability and employer’s liability coverage for your peace of mind.
How long will my project take?
Project timelines vary depending on size and complexity, but we always provide a detailed schedule upfront and keep you updated throughout.
Can I live in my home during the renovation?
In most cases, yes. We work to minimize disruption, but we’ll advise you based on the nature of your specific project.
Do you provide a warranty?
Yes. All our work is covered by a workmanship guarantee, and we use high-quality materials with their own warranties.
Do you handle design and architecture?
We work closely with architects and structural engineers. If you don’t have one, we’re happy to recommend trusted professionals.
Can you work with my own architect or designer?
Definitely. We’re experienced in collaborating with external architects and designers to deliver your vision.
Contact Us
Copyright © 2025 NiwaWay Construction Ltd
Company Number: 15168329