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Design and Build Contractors in London

Over 175 completed projects since 2015

Design and Build Contractors in
London

A proven track record, built over time.

As established design and build contractors in London, we deliver design-led extensions, renovations and loft conversions for homeowners who value careful planning and a well-managed build. Over 178 projects delivered across London since 2015 — end-to-end, under one roof.

Our Services

Trusted Design and Build Contractors for London’s Finest Homes

Completed loft refurbishment and home renovation project in Blackheath SE3
What £150k Gets You in a London Home Renovation in 2025 – S&M Solutions Ltd, Design and Build Contractors London
Reception room renovation with high ceilings and Victorian plaster coving in, Blackheath, London SE3
Reception room renovation with high ceilings and Victorian plaster coving in, Blackheath, London SE3

Bespoke Design and Building Expertise

As premium design and build contractors in London, we specialise in creating bespoke luxury renovations and new builds, paying close attention to superb craftsmanship and detail.

Transparency and Client-Centric Approach

It’s your dream home, so we will do everything in our power to build it. From the initial contact to the very last part of your project, you can expect transparency, clear communication, and a considered, stress-free experience.

A London Construction Company You Can Trust

As trusted design and build contractors in London, we're known for our architectural and construction artistry, as well as unwavering professionalism, we are highly recommended by clients who value quality and reliability above all.

Fully Accredited and Insured For Complete Peace of Mind

As members of the Federation of Master Builders, we operate with full insurance coverage of £5 million, ensuring that your project is delivered to the highest industry standards.

Over a Decade of Excellence

For over ten years, we’ve been committed to overseeing every stage of construction with precision, ensuring projects are delivered on time, within budget, and beyond expectations.

Book your Design and Build consultation and let’s transform your property with precision, style, and craftsmanship.

About Us

House Extensions Chelsea – S&M Solutions Ltd, Design and Build Contractors London
Finished interior spaces following full home refurbishment in Blackheath London SE3
Wraparound kitchen extension completed in Blackheath London SE3 by S&M Solutions Ltd Design and Build Contractors
Wraparound kitchen extension completed in Blackheath London SE3 by S&M Solutions Ltd Design and Build Contractors

Established in 2015, S & M Solutions Ltd has become a respected design and build contractor operating across London.
Our portfolio includes loft conversions, extensions and full property refurbishments — from standard residential upgrades to complex schemes in conservation areas and listed buildings.

We’re known for disciplined delivery: rigorous planning, careful detailing and practical problem-solving at each stage, ensuring every project performs as intended and holds up to scrutiny.

Our approach combines technical understanding with hands-on experience across structure, services and finishing.
We manage projects methodically — aligning design, engineering and construction so that decisions are coordinated, risks are reduced and progress is predictable.

Clients come to us because we deliver well-built spaces, finished with care, and because we understand what it takes to get a project over the line properly.

S & M Solutions Ltd — built on knowledge, delivered with confidence.

About Our Process

1.

Inquiry

Tell us about your project by phone, email or the form below. We'll ask about your vision, your timelines and the scope you have in mind. If it's a good fit, we'll arrange the next step. Every enquiry is reviewed personally.

2.

Site Visit & Design Consultation

We visit your property to assess the site, talk through design options and understand exactly what you want to achieve. It's a thorough, professional consultation — the groundwork that lets everything after it run smoothly, and it's where our design-and-build approach really comes into its own.

3.

Project Kick-off and Progress

Once we're underway, work begins promptly. You'll have access to our online project portal to follow progress in real time, and we hold fortnightly on-site meetings so you're always informed — without ever having to chase.

4.

Completion & Aftercare

We carry out a full walkthrough with you before handover. Building control sign-off, warranties, and aftercare instructions are all provided. Our commitment doesn't stop at practical completion.

FAQs

Common questions before getting started

1. Can you provide a quote without drawings?

Yes — in fact, that's where our design-and-build service works best. If you don't have drawings yet, we take your project through a pre-construction stage where we define the scope, design, budget expectations and build approach together, all under one roof. If you already have drawings, we'll price directly from them.

2. Do you charge for the site visit and quote?

Yes. A proper site visit and an accurate, detailed written quote take real time and expertise, so this stage carries a fee — and we give it the same care as the work that follows. The fee covers the site visit and a full written quote. If you go on to build with us, half of it is credited back against your project invoice.

3. What budget should I expect?

Every project is different, so we don't quote ballpark figures before understanding your site and scope — a number given too early is rarely accurate and helps no one. Once we've visited and discussed what you want to achieve, you'll receive a clear, detailed written quote with no surprises or hidden costs.

4. When could you start?

Timelines depend on the scope, design stage and any approvals your project needs. We'll give you a realistic timeframe once we understand the project, and we're honest about it rather than over-promising.

5. What are the next steps?

The simplest start is to get in touch via the form, phone or email. We'll review your enquiry personally and, if it's the right fit, arrange a site visit and consultation.

Project Gallery
Testimonials

We love our customers! Here is what they had to say about us.

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Areas We Cover

Based in Blackheath, we provide design-and-build services across London and the surrounding areas — including Greenwich, Blackheath and the City.

S & M Solutions Ltd service area map
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