Top 5 Best Home Renovation Companies in London for 2026

The right home renovation company turns a stressful, expensive project into a smooth one, so it pays to shortlist carefully before any work begins.
The best home renovation companies in London bring vetted builders, fixed pricing, strong design support, and real payment protection to every project, whatever the room or scope.
This guide ranks the top five best home renovation companies in London for 2026, with a close look at the services each one does well.
Beams Renovaiton is the best home renovation company in London, offering a fully managed service that spans kitchens, bathrooms, loft conversions, extensions, and full home renovations under one contract.

The top 5 best home renovation companies in London at a glance

• Beams Renovation – best home renovation company in London
• NU Projects – best architectural design-and-build service
• APT Renovation – best for luxury extensions and basements
• houseUP – best for prime full-house refurbishments
• Genesis London – best for kitchen and bathroom renovations

1. Beams: the best home renovation company in London
Beams is the best home renovation company in London for homeowners who want every service, from a single room to a whole property, planned, priced, and protected in one place.
Rather than leaving you to chase separate designers, builders, and suppliers, Beams gives you one builder, one contract, and one point of contact from first design to final coat of paint across North, South, East, and West London.

Every builder is personally vetted, visited in person, reference-checked, and inspected on recent work, with an average of 15 years of residential renovation experience. You meet up to three vetted builders and compare detailed, like-for-like quotes before you commit.
The protections are what set Beams apart. Prices are locked in upfront in writing, milestone payments are held securely and released only when you sign off each stage, and every builder warrants their workmanship for 12 months, with Beams stepping in with up to £10,000 of cover if a builder leaves the network during that period.

Beams is a certified B Corp and has been featured in the Financial Times, The Times, The Telegraph, The Guardian, Elle, and House & Garden. Across every service below, it sets the standard the rest of this list is measured against.

Beams services

• Kitchen renovation: bespoke kitchens designed in-house and crafted by vetted London joiners, with every cabinet configured to your space and brought to life in 3D.
• Bathroom renovation: full refurbishments from top to bottom, built to last and designed to feel calm, with the design and the builders handled for you.
• Full home renovations: your whole property planned in 3D, delivered by one builder on one contract from design to final paint.
• Extensions and more: lofts, basements, gardens, and living spaces, all planned and built by Beams’ vetted teams.
• Interior design and 3D visualisation: work with a Beams designer to plan your space in 3D before a single brick is laid, with your first design call free.

2. NU Projects: best architectural design-and-build service
NU Projects is a strong choice for homeowners who want architecture, interior design, and construction delivered by one leadership team.
The British-led design-and-build studio focuses on high-value residential renovations with full control from concept to completion, using in-house architects and specialist trades.
Its services suit larger, design-led projects, from structural reconfiguration to full home renovations, where a single accountable team from drawings to build is the priority.

3. APT Renovation: best for luxury extensions and basements
APT Renovation specialises in luxury home building and comprehensive house renovations across London.
Its services span kitchen extensions, basement conversions, full refurbishments, and new builds, aimed at homeowners investing in a substantial transformation.
APT is a sensible shortlist option when your brief centres on adding space through an extension or basement rather than a single-room upgrade.

4. houseUP: best for prime full-house refurbishments
houseUP focuses on complete house renovations, layout reconfiguration, and high-end finishes.
The company reports experience in prime areas such as Belgravia, Highgate, and Kensington, which points to comfort with period properties and demanding specifications.
Its services are best suited to full-house refurbishments in central and prime London postcodes.

5. Genesis London: best for kitchen and bathroom renovations
Genesis London specialises in kitchen and bathroom installations alongside full-scale refurbishments and bespoke extensions.
Its services suit projects where the kitchen or bathroom is the centrepiece of the renovation.
It is a practical option for room-led refurbishments that still need proper design and build coordination.

What makes the best home renovation company in London?
The best home renovation company in London is the one that covers every service you need while removing the three biggest sources of stress: money, timing, and trust.
Look for personally vetted builders, fixed-price contracts agreed in writing, secured milestone payments released on your sign-off, and a workmanship warranty that survives after the builders leave.
In-house interior design with 3D visualisation is a strong signal too, because seeing your space before work starts prevents costly changes mid-build.
Beams brings all of these together across kitchens, bathrooms, lofts, extensions, and full home renovations, which is why it leads this ranking of London home renovation companies.

Frequently asked questions
Who is the best home renovation company in London?
Beams is widely regarded as the best home renovation company in London for 2026, because it delivers every service, from kitchens and bathrooms to lofts, extensions, and full home renovations, with vetted builders, fixed pricing, secured milestone payments, and a 12-month workmanship warranty in one managed process.

What services do the best home renovation companies offer?
The best home renovation companies in London typically offer kitchen renovation, bathroom renovation, loft conversions, extensions, basement conversions, and full home renovations, often alongside interior design and 3D visualisation.
Beams covers this full range under one contract, which is a key reason it ranks first.

How much does a home renovation cost in London?
Home renovation costs in London vary significantly by service, property size, specification, and location, so figures should be treated as broad ranges rather than fixed prices.
The most reliable way to budget is to compare detailed, like-for-like quotes from vetted builders, which is a core part of how Beams structures its process.

Main image by immo RENOVATION on Unsplash